GRB210312.87 page :: MASTER Database

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Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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Name

INTEGRAL GRB210312.87

Trignum

9073

Trigger time

2021-03-12 20:52:20.1

Notice time

2021-03-12 20:55:39.169266

Coord, eb

(10h 23m 21.63s , +76d 52m 15.1s) , 0.0453333

Max dist: 1 sigma 3 sigma

AGN candidates:	Milliquas	??	r90wise	??	wiseXgaia	??
BL Lac candidates:	1 Sigma	??	3 Sigma	??

MASTER observatories and transients from them in error-field

Kislovodsk Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

Amur Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

Tunka Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

OAFA Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

IAC Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

SAAO Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

Tavrida Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ?? 

OAGH Transients (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
Trans. Difference (Undef)
 ?? 
(All)
 ?? 
(Yes)
 ?? 
(Gal)
 ??

You are viewing outdated information, relevant error box is here

All alerts for this trigger

id	noticetime	coord2000	satel	errorbox	type	trigger	seq	trig_type	links
1567266	2021-03-12 21:39:56.648892	10^h 23^m 22.36^s +76^d 52^m 15.2^s	INTEGRAL	0.0333333	alert	9073	2	55	alert
1567235	2021-03-12 20:55:39.169266	10^h 23^m 21.63^s +76^d 52^m 15.1^s	INTEGRAL	0.0453333	alert	9073	1	54	alert
1567228	2021-03-12 20:52:37.419041	10^h 23^m 22.09^s +76^d 52^m 36.7^s	INTEGRAL	0.0491667	alert	9073	-1	53	alert

MASTER optical transients in this field
Will be published in GCN, ATEL

Synchronous WFC images

Distance	datetime	coord2000	observatory	camera	links
50.2	2021-03-12 20:52:02.837	08^h 45^m 27.00^s +27^d 59^m 58.0^s	Kislovodsk	29007	Database Kislovodsk
50.2	2021-03-12 20:52:02.84	08^h 45^m 27.00^s +27^d 59^m 58.0^s	Kislovodsk	111339	Database Kislovodsk

Errorbox center visibility at MASTER facilities

trigger

notice

notice+1hr

now

2021-03-12 20:52:20 (JD 2459286.369676)

Siderial time 10.761535 h

Ra 10:23:21.63 Dec 76:52:15.10
(155.840125d, 76.870861d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 47.37 Azimuth: 160.50

Sun: Altitude: -9.74 Azimuth: 263.04

Moon: Altitude: -12.65 Azimuth: 270.85

Tunka

Object: Altitude: 54.20 Azimuth: 158.46

Sun: Altitude: -23.89 Azimuth: 242.11

Moon: Altitude: -27.49 Azimuth: 250.29

Kislovodsk

Object: Altitude: 56.59 Azimuth: 175.69

Sun: Altitude: -48.94 Azimuth: 170.07

Moon: Altitude: -56.43 Azimuth: 175.59

Tavrida

Object: Altitude: 57.85 Azimuth: 179.15

Sun: Altitude: -46.31 Azimuth: 157.99

Moon: Altitude: -54.24 Azimuth: 161.29

SAAO

Object: Altitude: -19.47 Azimuth: 182.69

Sun: Altitude: -45.57 Azimuth: 42.43

Moon: Altitude: -41.52 Azimuth: 32.58

IAC

Object: Altitude: 36.45 Azimuth: 192.22

Sun: Altitude: -22.92 Azimuth: 99.28

Moon: Altitude: -29.84 Azimuth: 94.36

Argentina

Object: Altitude: -33.45 Azimuth: 195.48

Sun: Altitude: 25.57 Azimuth: 103.08

Moon: Altitude: 25.99 Azimuth: 93.99

Mexico

Object: Altitude: 20.37 Azimuth: 188.50

Sun: Altitude: 50.63 Azimuth: 33.59

Moon: Altitude: 42.43 Azimuth: 33.74

Ural

Object: Altitude: 67.93 Azimuth: 163.79

Sun: Altitude: -35.41 Azimuth: 192.91

Moon: Altitude: -41.87 Azimuth: 199.38

Vostryakovo

Object: Altitude: 68.41 Azimuth: 176.44

Sun: Altitude: -36.93 Azimuth: 165.92

Moon: Altitude: -44.51 Azimuth: 170.06

Gal. latitude: 37.623358 Gal. longitude: 132.800861

Dist. to Sun: 105.630413

Dist. to Moon: 113.015706

Moon coord.: (348.803933 d, -10.241698 d)

Sun coord.: (352.843444 d, -3.092016 d)

Lunar disk: 0.005144

Lunar phase: 171.774615

Lunar bright limb: 29.561091

No SN in this field

2021-03-12 20:55:39 (JD 2459286.371979)

Siderial time 10.816964 h

Ra 10:23:21.63 Dec 76:52:15.10
(155.840125d, 76.870861d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 47.19 Azimuth: 160.59

Sun: Altitude: -9.22 Azimuth: 263.68

Moon: Altitude: -12.13 Azimuth: 271.46

Tunka

Object: Altitude: 54.01 Azimuth: 158.45

Sun: Altitude: -23.44 Azimuth: 242.87

Moon: Altitude: -27.01 Azimuth: 251.00

Kislovodsk

Object: Altitude: 56.54 Azimuth: 175.36

Sun: Altitude: -49.03 Azimuth: 171.32

Moon: Altitude: -56.45 Azimuth: 177.02

Tavrida

Object: Altitude: 57.84 Azimuth: 178.80

Sun: Altitude: -46.53 Azimuth: 159.16

Moon: Altitude: -54.40 Azimuth: 162.62

SAAO

Object: Altitude: -19.44 Azimuth: 182.49

Sun: Altitude: -46.04 Azimuth: 41.45

Moon: Altitude: -41.89 Azimuth: 31.65

IAC

Object: Altitude: 36.60 Azimuth: 192.08

Sun: Altitude: -23.64 Azimuth: 99.72

Moon: Altitude: -30.54 Azimuth: 94.79

Argentina

Object: Altitude: -33.26 Azimuth: 195.49

Sun: Altitude: 24.88 Azimuth: 102.57

Moon: Altitude: 25.30 Azimuth: 93.55

Mexico

Object: Altitude: 20.48 Azimuth: 188.66

Sun: Altitude: 50.23 Azimuth: 34.73

Moon: Altitude: 42.05 Azimuth: 34.68

Ural

Object: Altitude: 67.80 Azimuth: 163.42

Sun: Altitude: -35.31 Azimuth: 193.91

Moon: Altitude: -41.71 Azimuth: 200.42

Vostryakovo

Object: Altitude: 68.38 Azimuth: 175.93

Sun: Altitude: -37.04 Azimuth: 166.95

Moon: Altitude: -44.57 Azimuth: 171.16

Gal. latitude: 37.623358 Gal. longitude: 132.800861

Dist. to Sun: 105.629361

Dist. to Moon: 113.002849

Moon coord.: (348.830979 d, -10.230299 d)

Sun coord.: (352.845560 d, -3.091108 d)

Lunar disk: 0.005117

Lunar phase: 171.795896

Lunar bright limb: 29.444162

No SN in this field

2021-03-12 21:55:39 (JD 2459286.413646)

Siderial time 11.819702 h

Ra 10:23:21.63 Dec 76:52:15.10
(155.840125d, 76.870861d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 44.17 Azimuth: 162.84

Sun: Altitude: 0.36 Azimuth: 275.25

Moon: Altitude: -2.76 Azimuth: 282.40

Tunka

Object: Altitude: 50.62 Azimuth: 159.05

Sun: Altitude: -14.76 Azimuth: 255.81

Moon: Altitude: -18.09 Azimuth: 263.16

Kislovodsk

Object: Altitude: 55.13 Azimuth: 169.84

Sun: Altitude: -48.50 Azimuth: 194.12

Moon: Altitude: -54.47 Azimuth: 202.20

Tavrida

Object: Altitude: 57.03 Azimuth: 172.65

Sun: Altitude: -48.34 Azimuth: 181.22

Moon: Altitude: -55.09 Azimuth: 187.54

SAAO

Object: Altitude: -19.29 Azimuth: 178.88

Sun: Altitude: -52.65 Azimuth: 20.69

Moon: Altitude: -46.76 Azimuth: 12.75

IAC

Object: Altitude: 39.05 Azimuth: 189.09

Sun: Altitude: -36.43 Azimuth: 108.77

Moon: Altitude: -43.09 Azimuth: 103.47

Argentina

Object: Altitude: -29.87 Azimuth: 195.14

Sun: Altitude: 12.26 Azimuth: 94.03

Moon: Altitude: 12.84 Azimuth: 86.06

Mexico

Object: Altitude: 22.73 Azimuth: 191.41

Sun: Altitude: 41.36 Azimuth: 52.15

Moon: Altitude: 33.83 Azimuth: 49.60

Ural

Object: Altitude: 65.08 Azimuth: 158.27

Sun: Altitude: -32.14 Azimuth: 211.54

Moon: Altitude: -37.63 Azimuth: 218.30

Vostryakovo

Object: Altitude: 67.13 Azimuth: 167.55

Sun: Altitude: -37.56 Azimuth: 185.80

Moon: Altitude: -44.19 Azimuth: 191.25

Gal. latitude: 37.623358 Gal. longitude: 132.800861

Dist. to Sun: 105.610337

Dist. to Moon: 112.769491

Moon coord.: (349.319761 d, -10.023773 d)

Sun coord.: (352.883839 d, -3.074685 d)

Lunar disk: 0.004656

Lunar phase: 172.175012

Lunar bright limb: 27.226066

No SN in this field

2024-12-08 18:24:21 (JD 2460653.266910)

Siderial time 2.113724 h

Ra 10:23:21.63 Dec 76:52:15.10
(155.840125d, 76.870861d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 60.38 Azimuth: 195.00

Sun: Altitude: -45.06 Azimuth: 249.58

Moon: Altitude: -30.02 Azimuth: 120.96

Tunka

Object: Altitude: 56.97 Azimuth: 200.86

Sun: Altitude: -56.61 Azimuth: 217.82

Moon: Altitude: -15.20 Azimuth: 100.17

Kislovodsk

Object: Altitude: 36.39 Azimuth: 194.26

Sun: Altitude: -51.72 Azimuth: 110.31

Moon: Altitude: 25.00 Azimuth: 53.12

Tavrida

Object: Altitude: 35.92 Azimuth: 192.82

Sun: Altitude: -45.60 Azimuth: 103.43

Moon: Altitude: 28.96 Azimuth: 44.76

SAAO

Object: Altitude: -42.11 Azimuth: 191.12

Sun: Altitude: -9.94 Azimuth: 54.77

Moon: Altitude: 54.59 Azimuth: 133.34

IAC

Object: Altitude: 15.18 Azimuth: 180.41

Sun: Altitude: -3.97 Azimuth: 66.19

Moon: Altitude: 53.93 Azimuth: 338.96

Argentina

Object: Altitude: -39.38 Azimuth: 166.78

Sun: Altitude: 62.74 Azimuth: 102.01

Moon: Altitude: 24.16 Azimuth: 261.47

Mexico

Object: Altitude: 30.64 Azimuth: 164.70

Sun: Altitude: 34.94 Azimuth: 346.50

Moon: Altitude: -16.79 Azimuth: 266.62

Ural

Object: Altitude: 52.27 Azimuth: 201.27

Sun: Altitude: -52.18 Azimuth: 145.63

Moon: Altitude: 8.90 Azimuth: 64.62

Vostryakovo

Object: Altitude: 46.83 Azimuth: 195.99

Sun: Altitude: -44.18 Azimuth: 117.19

Moon: Altitude: 19.68 Azimuth: 45.06

Gal. latitude: 37.623358 Gal. longitude: 132.800861

Dist. to Sun: 114.398560

Dist. to Moon: 108.500705

Moon coord.: (349.841960 d, -5.777741 d)

Sun coord.: (255.680804 d, -22.793987 d)

Lunar disk: 0.515050

Lunar phase: 88.275098

Lunar bright limb: 246.894704

No SN in this field

Recent coverage and limits telegrams

 #######################################################################################
#######################################################################################

  ID = 3959
TYPE = 35
DAYS = 1


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.36s , +76d 52m 15.2s, R=0.0333333) errorbox  27 sec after notice time and 38 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567266

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      43 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      63 |   MASTER-Kislovodsk |  P- |    50 | 16.8 |  Coadd 
     433 |   MASTER-Kislovodsk |  P- |   790 | 17.4 |  Coadd 
      43 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      53 |   MASTER-Kislovodsk |  P| |    30 | 16.7 |  Coadd 
     398 |   MASTER-Kislovodsk |  P| |   720 | 19.2 |  Coadd 
      44 |             MASTER- |   C |    10 | 18.6 |        
      44 |             MASTER- |   C |    10 | 18.7 |        
      61 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      61 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        
      67 |             MASTER- |   C |    10 | 18.3 |        
      68 |             MASTER- |   C |    10 | 18.7 |        
      79 |   MASTER-Kislovodsk |  P- |    10 | 14.7 |        
      79 |   MASTER-Kislovodsk |  P| |    10 | 16.0 |        
      98 |             MASTER- |   C |    20 | 18.9 |        
      98 |             MASTER- |   C |    20 | 18.9 |        
     105 |   MASTER-Kislovodsk |  P- |    20 | 16.3 |        
     105 |   MASTER-Kislovodsk |  P| |    20 | 16.8 |        
     130 |   MASTER-Kislovodsk |  P| |    70 | 17.6 |  Coadd 
     131 |             MASTER- |   C |    20 | 18.7 |        
     131 |             MASTER- |   C |    20 | 19.0 |        
     133 |   MASTER-Kislovodsk |  P- |    20 | 16.6 |        
     133 |   MASTER-Kislovodsk |  P| |    20 | 16.6 |        
     166 |   MASTER-Kislovodsk |  P- |    30 | 16.7 |        
     211 |   MASTER-Kislovodsk |  P- |   120 | 17.3 |  Coadd 
     166 |   MASTER-Kislovodsk |  P| |    30 | 17.3 |        
     171 |             MASTER- |   C |    30 | 19.0 |        
     171 |             MASTER- |   C |    30 | 19.0 |        
     209 |   MASTER-Kislovodsk |  P- |    40 | 16.7 |        
     209 |   MASTER-Kislovodsk |  P| |    40 | 17.4 |        
     264 |   MASTER-Kislovodsk |  P| |   150 | 18.2 |  Coadd 
     219 |             MASTER- |   C |    40 | 18.9 |        
     220 |             MASTER- |   C |    40 | 19.2 |        
     262 |   MASTER-Kislovodsk |  P- |    50 | 16.7 |        
     262 |   MASTER-Kislovodsk |  P| |    50 | 17.5 |        
     278 |             MASTER- |   C |    50 | 19.2 |        
     278 |             MASTER- |   C |    50 | 19.0 |        
     325 |   MASTER-Kislovodsk |  P- |    60 | 16.8 |        
     405 |   MASTER-Kislovodsk |  P- |   220 | 17.7 |  Coadd 
     325 |   MASTER-Kislovodsk |  P| |    60 | 17.5 |        
     346 |             MASTER- |   C |    60 | 19.1 |        
     346 |             MASTER- |   C |    60 | 19.1 |        
     398 |   MASTER-Kislovodsk |  P- |    70 | 16.7 |        
     398 |   MASTER-Kislovodsk |  P| |    70 | 17.7 |        
     518 |   MASTER-Kislovodsk |  P| |   310 | 19.2 |  Coadd 
     418 |             MASTER- |   C |    60 | 19.0 |        
     418 |             MASTER- |   C |    60 | 19.1 |        
     486 |   MASTER-Kislovodsk |  P- |    90 | 17.0 |        
     492 |             MASTER- |   C |    60 | 19.0 |        
     492 |             MASTER- |   C |    60 | 18.9 |        
     564 |             MASTER- |   C |    60 | 19.1 |        
     564 |             MASTER- |   C |    60 | 19.1 |        
     594 |   MASTER-Kislovodsk |  P- |   110 | 17.4 |        
     739 |   MASTER-Kislovodsk |  P- |   400 | 18.5 |  Coadd 
     594 |   MASTER-Kislovodsk |  P| |   110 | 18.5 |        
     638 |             MASTER- |   C |    60 | 19.3 |        
     638 |             MASTER- |   C |    60 | 18.9 |        
     722 |   MASTER-Kislovodsk |  P- |   130 | 17.7 |        
     722 |   MASTER-Kislovodsk |  P| |   130 | 18.5 |        
     712 |             MASTER- |   C |    60 | 19.2 |        
     712 |             MASTER- |   C |    60 | 19.2 |        
     785 |             MASTER- |   C |    60 | 19.0 |        
     785 |             MASTER- |   C |    60 | 18.9 |        
     875 |   MASTER-Kislovodsk |  P- |   160 | 17.9 |        
     875 |   MASTER-Kislovodsk |  P| |   160 | 18.9 |        
     856 |             MASTER- |   C |    60 | 19.2 |        
     856 |             MASTER- |   C |    60 | 19.0 |        
     929 |             MASTER- |   C |    60 | 19.0 |        
     929 |             MASTER- |   C |    60 | 19.1 |        
    1053 |   MASTER-Kislovodsk |  P- |   180 | 18.1 |        
    1233 |   MASTER-Kislovodsk |  P- |   540 | 18.7 |  Coadd 
    1863 |   MASTER-Kislovodsk |  P- |  1800 | 18.7 |  Coadd 
    1053 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1863 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    1002 |             MASTER- |   C |    60 | 19.0 |        
    1002 |             MASTER- |   C |    60 | 19.0 |        
    1075 |             MASTER- |   C |    60 | 19.0 |        
    1075 |             MASTER- |   C |    60 | 19.1 |        
    1148 |             MASTER- |   C |    60 | 19.0 |        
    1148 |             MASTER- |   C |    60 | 19.0 |        
    1254 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    1254 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    1221 |             MASTER- |   C |    60 | 19.0 |        
    1221 |             MASTER- |   C |    60 | 18.7 |        
    1295 |             MASTER- |   C |    60 | 19.0 |        
    1295 |             MASTER- |   C |    60 | 19.0 |        
    1368 |             MASTER- |   C |    60 | 19.0 |        
    1368 |             MASTER- |   C |    60 | 19.0 |        
    1455 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1455 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1635 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    1440 |             MASTER- |   C |    60 | 18.9 |        
    1440 |             MASTER- |   C |    60 | 18.9 |        
    1514 |             MASTER- |   C |    60 | 19.1 |        
    1514 |             MASTER- |   C |    60 | 18.9 |        
    1587 |             MASTER- |   C |    60 | 19.0 |        
    1587 |             MASTER- |   C |    60 | 19.1 |        
    1656 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1836 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    1656 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    1660 |             MASTER- |   C |    60 | 18.9 |        
    1660 |             MASTER- |   C |    60 | 19.1 |        
    1732 |             MASTER- |   C |    60 | 18.9 |        
    1732 |             MASTER- |   C |    60 | 19.1 |        
    1857 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    1857 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    1807 |             MASTER- |   C |    60 | 18.9 |        
    1807 |             MASTER- |   C |    60 | 19.2 |        
    1880 |             MASTER- |   C |    60 | 18.7 |        
    1880 |             MASTER- |   C |    60 | 18.8 |        
    1953 |             MASTER- |   C |    60 | 18.9 |        
    1953 |             MASTER- |   C |    60 | 18.8 |        
    2057 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2057 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2237 |   MASTER-Kislovodsk |  P| |   540 | 19.3 |  Coadd 
    2025 |             MASTER- |   C |    60 | 19.0 |        
    2025 |             MASTER- |   C |    60 | 18.9 |        
    2099 |             MASTER- |   C |    60 | 19.0 |        
    2100 |             MASTER- |   C |    60 | 19.0 |        
    2174 |             MASTER- |   C |    60 | 19.1 |        
    2174 |             MASTER- |   C |    60 | 19.0 |        
    2258 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    2438 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    2258 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    2247 |             MASTER- |   C |    60 | 18.8 |        
    2248 |             MASTER- |   C |    60 | 19.0 |        
    2323 |             MASTER- |   C |    60 | 19.0 |        
    2323 |             MASTER- |   C |    60 | 18.9 |        
    2397 |             MASTER- |   C |    60 | 19.0 |        
    2397 |             MASTER- |   C |    60 | 19.0 |        
    2459 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2459 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2469 |             MASTER- |   C |    60 | 19.1 |        
    2469 |             MASTER- |   C |    60 | 19.3 |        
    2541 |             MASTER- |   C |    60 | 19.0 |        
    2542 |             MASTER- |   C |    60 | 19.1 |        
    2661 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2661 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    2841 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    2613 |             MASTER- |   C |    60 | 19.1 |        
    2613 |             MASTER- |   C |    60 | 19.1 |        
    2688 |             MASTER- |   C |    60 | 19.1 |        
    2688 |             MASTER- |   C |    60 | 18.8 |        
    2760 |             MASTER- |   C |    60 | 19.2 |        
    2760 |             MASTER- |   C |    60 | 19.1 |        
    2862 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3042 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    2862 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    2833 |             MASTER- |   C |    60 | 19.1 |        
    2833 |             MASTER- |   C |    60 | 18.9 |        
    2906 |             MASTER- |   C |    60 | 19.0 |        
    2906 |             MASTER- |   C |    60 | 19.0 |        
    2980 |             MASTER- |   C |    60 | 19.0 |        
    2980 |             MASTER- |   C |    60 | 19.2 |        
    3063 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3873 |   MASTER-Kislovodsk |  P- |  1800 | 18.9 |  Coadd 
    3063 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3873 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    3053 |             MASTER- |   C |    60 | 19.3 |        
    3053 |             MASTER- |   C |    60 | 19.0 |        
    3126 |             MASTER- |   C |    60 | 19.2 |        
    3126 |             MASTER- |   C |    60 | 19.0 |        
    3198 |             MASTER- |   C |    60 | 19.2 |        
    3198 |             MASTER- |   C |    60 | 19.3 |        
    3264 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    3264 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3444 |   MASTER-Kislovodsk |  P| |   540 | 19.6 |  Coadd 
    3271 |             MASTER- |   C |    60 | 18.9 |        
    3271 |             MASTER- |   C |    60 | 19.1 |        
    3343 |             MASTER- |   C |    60 | 18.6 |        
    3343 |             MASTER- |   C |    60 | 18.7 |        
    3465 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3645 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    3465 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3414 |             MASTER- |   C |    60 | 18.8 |        
    3414 |             MASTER- |   C |    60 | 18.9 |        
    3486 |             MASTER- |   C |    60 | 18.4 |        
    3486 |             MASTER- |   C |    60 | 18.7 |        
    3559 |             MASTER- |   C |    60 | 18.7 |        
    3559 |             MASTER- |   C |    60 | 18.8 |        
    3666 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3666 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    3632 |             MASTER- |   C |    60 | 18.0 |        
    3632 |             MASTER- |   C |    60 | 18.2 |        
    3704 |             MASTER- |   C |    60 | 18.3 |        
    3704 |             MASTER- |   C |    60 | 18.6 |        
    3783 |             MASTER- |   C |    60 | 18.1 |        
    3783 |             MASTER- |   C |    60 | 18.5 |        
    3867 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3867 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    4047 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    3854 |             MASTER- |   C |    60 | 17.8 |        
    3854 |             MASTER- |   C |    60 | 18.3 |        
    3929 |             MASTER- |   C |    60 | 18.1 |        
    3929 |             MASTER- |   C |    60 | 18.4 |        
    4002 |             MASTER- |   C |    60 | 17.6 |        
    4002 |             MASTER- |   C |    60 | 18.3 |        
    4068 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4248 |   MASTER-Kislovodsk |  P- |   540 | 18.4 |  Coadd 
    4068 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4075 |             MASTER- |   C |    60 | 17.4 |        
    4076 |             MASTER- |   C |    60 | 17.7 |        
    4148 |             MASTER- |   C |    60 | 16.8 |        
    4148 |             MASTER- |   C |    60 | 17.3 |        
    4269 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4269 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4219 |             MASTER- |   C |    60 | 16.4 |        
    4219 |             MASTER- |   C |    60 | 16.8 |        
    4291 |             MASTER- |   C |    60 | 16.6 |        
    4291 |             MASTER- |   C |    60 | 16.8 |        
    4369 |             MASTER- |   C |    60 | 16.6 |        
    4369 |             MASTER- |   C |    60 | 17.0 |        
    4469 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    4469 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    4649 |   MASTER-Kislovodsk |  P| |   540 | 19.1 |  Coadd 
    4443 |             MASTER- |   C |    60 | 16.5 |        
    4443 |             MASTER- |   C |    60 | 16.7 |        
    4518 |             MASTER- |   C |    60 | 16.0 |        
    4670 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    4850 |   MASTER-Kislovodsk |  P- |   540 | 17.7 |  Coadd 
    4670 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    4871 |   MASTER-Kislovodsk |  P- |   180 | 16.9 |        
    4871 |   MASTER-Kislovodsk |  P| |   180 | 17.9 |        
    5072 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5882 |   MASTER-Kislovodsk |  P- |  1800 | 17.5 |  Coadd 
    5072 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    5252 |   MASTER-Kislovodsk |  P| |   540 | 18.0 |  Coadd 
    5882 |   MASTER-Kislovodsk |  P| |  1800 | 18.5 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5452 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P| |   180 | 17.3 |        
    5474 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5474 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5675 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5675 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5855 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    6056 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    6077 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    6077 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    6278 |   MASTER-Kislovodsk |  P- |   180 | 16.4 |        
    6278 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    6458 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
    6659 |   MASTER-Kislovodsk |  P- |   540 | 17.5 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P| |   180 | 16.7 |        
    6680 |   MASTER-Kislovodsk |  P- |   180 | 17.2 |        
    6680 |   MASTER-Kislovodsk |  P| |   180 | 18.2 |        
    6881 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    6881 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    7061 |   MASTER-Kislovodsk |  P| |   540 | 19.2 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7262 |   MASTER-Kislovodsk |  P- |   540 | 18.2 |  Coadd 
    7892 |   MASTER-Kislovodsk |  P- |  1800 | 18.5 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    7892 |   MASTER-Kislovodsk |  P| |  1800 | 19.4 |  Coadd 
    7283 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7283 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    7483 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    7483 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    7663 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7865 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    7886 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7886 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    8087 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    8087 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8267 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    8467 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    8489 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    8489 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8690 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    8690 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    8870 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 
    8890 |   MASTER-Kislovodsk |  P- |   180 | 16.8 |        
    9070 |   MASTER-Kislovodsk |  P- |   540 | 17.7 |  Coadd 
    8890 |   MASTER-Kislovodsk |  P| |   180 | 17.8 |        
    9091 |   MASTER-Kislovodsk |  P- |   180 | 16.8 |        
    9091 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    9292 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    9292 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    9472 |   MASTER-Kislovodsk |  P| |   540 | 18.0 |  Coadd 
    9493 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    9673 |   MASTER-Kislovodsk |  P- |   540 | 16.3 |  Coadd 
    9493 |   MASTER-Kislovodsk |  P| |   180 | 17.3 |        
    9694 |   MASTER-Kislovodsk |  P- |   180 | 15.5 |        
    9694 |   MASTER-Kislovodsk |  P| |   180 | 16.0 |        
    9895 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    9896 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   10096 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   10097 |   MASTER-Kislovodsk |  P| |   180 | 15.8 |        
   10297 |   MASTER-Kislovodsk |  P- |   180 | 13.0 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3958
TYPE = 35
DAYS = 0.5


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.36s , +76d 52m 15.2s, R=0.0333333) errorbox  27 sec after notice time and 38 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567266

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      43 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      63 |   MASTER-Kislovodsk |  P- |    50 | 16.8 |  Coadd 
     433 |   MASTER-Kislovodsk |  P- |   790 | 17.4 |  Coadd 
      43 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      53 |   MASTER-Kislovodsk |  P| |    30 | 16.7 |  Coadd 
     398 |   MASTER-Kislovodsk |  P| |   720 | 19.2 |  Coadd 
      44 |             MASTER- |   C |    10 | 18.6 |        
      44 |             MASTER- |   C |    10 | 18.7 |        
      61 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      61 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        
      67 |             MASTER- |   C |    10 | 18.3 |        
      68 |             MASTER- |   C |    10 | 18.7 |        
      79 |   MASTER-Kislovodsk |  P- |    10 | 14.7 |        
      79 |   MASTER-Kislovodsk |  P| |    10 | 16.0 |        
      98 |             MASTER- |   C |    20 | 18.9 |        
      98 |             MASTER- |   C |    20 | 18.9 |        
     105 |   MASTER-Kislovodsk |  P- |    20 | 16.3 |        
     105 |   MASTER-Kislovodsk |  P| |    20 | 16.8 |        
     130 |   MASTER-Kislovodsk |  P| |    70 | 17.6 |  Coadd 
     131 |             MASTER- |   C |    20 | 18.7 |        
     131 |             MASTER- |   C |    20 | 19.0 |        
     133 |   MASTER-Kislovodsk |  P- |    20 | 16.6 |        
     133 |   MASTER-Kislovodsk |  P| |    20 | 16.6 |        
     166 |   MASTER-Kislovodsk |  P- |    30 | 16.7 |        
     211 |   MASTER-Kislovodsk |  P- |   120 | 17.3 |  Coadd 
     166 |   MASTER-Kislovodsk |  P| |    30 | 17.3 |        
     171 |             MASTER- |   C |    30 | 19.0 |        
     171 |             MASTER- |   C |    30 | 19.0 |        
     209 |   MASTER-Kislovodsk |  P- |    40 | 16.7 |        
     209 |   MASTER-Kislovodsk |  P| |    40 | 17.4 |        
     264 |   MASTER-Kislovodsk |  P| |   150 | 18.2 |  Coadd 
     219 |             MASTER- |   C |    40 | 18.9 |        
     220 |             MASTER- |   C |    40 | 19.2 |        
     262 |   MASTER-Kislovodsk |  P- |    50 | 16.7 |        
     262 |   MASTER-Kislovodsk |  P| |    50 | 17.5 |        
     278 |             MASTER- |   C |    50 | 19.2 |        
     278 |             MASTER- |   C |    50 | 19.0 |        
     325 |   MASTER-Kislovodsk |  P- |    60 | 16.8 |        
     405 |   MASTER-Kislovodsk |  P- |   220 | 17.7 |  Coadd 
     325 |   MASTER-Kislovodsk |  P| |    60 | 17.5 |        
     346 |             MASTER- |   C |    60 | 19.1 |        
     346 |             MASTER- |   C |    60 | 19.1 |        
     398 |   MASTER-Kislovodsk |  P- |    70 | 16.7 |        
     398 |   MASTER-Kislovodsk |  P| |    70 | 17.7 |        
     518 |   MASTER-Kislovodsk |  P| |   310 | 19.2 |  Coadd 
     418 |             MASTER- |   C |    60 | 19.0 |        
     418 |             MASTER- |   C |    60 | 19.1 |        
     486 |   MASTER-Kislovodsk |  P- |    90 | 17.0 |        
     492 |             MASTER- |   C |    60 | 19.0 |        
     492 |             MASTER- |   C |    60 | 18.9 |        
     564 |             MASTER- |   C |    60 | 19.1 |        
     564 |             MASTER- |   C |    60 | 19.1 |        
     594 |   MASTER-Kislovodsk |  P- |   110 | 17.4 |        
     739 |   MASTER-Kislovodsk |  P- |   400 | 18.5 |  Coadd 
     594 |   MASTER-Kislovodsk |  P| |   110 | 18.5 |        
     638 |             MASTER- |   C |    60 | 19.3 |        
     638 |             MASTER- |   C |    60 | 18.9 |        
     722 |   MASTER-Kislovodsk |  P- |   130 | 17.7 |        
     722 |   MASTER-Kislovodsk |  P| |   130 | 18.5 |        
     712 |             MASTER- |   C |    60 | 19.2 |        
     712 |             MASTER- |   C |    60 | 19.2 |        
     785 |             MASTER- |   C |    60 | 19.0 |        
     785 |             MASTER- |   C |    60 | 18.9 |        
     875 |   MASTER-Kislovodsk |  P- |   160 | 17.9 |        
     875 |   MASTER-Kislovodsk |  P| |   160 | 18.9 |        
     856 |             MASTER- |   C |    60 | 19.2 |        
     856 |             MASTER- |   C |    60 | 19.0 |        
     929 |             MASTER- |   C |    60 | 19.0 |        
     929 |             MASTER- |   C |    60 | 19.1 |        
    1053 |   MASTER-Kislovodsk |  P- |   180 | 18.1 |        
    1233 |   MASTER-Kislovodsk |  P- |   540 | 18.7 |  Coadd 
    1863 |   MASTER-Kislovodsk |  P- |  1800 | 18.7 |  Coadd 
    1053 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1863 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    1002 |             MASTER- |   C |    60 | 19.0 |        
    1002 |             MASTER- |   C |    60 | 19.0 |        
    1075 |             MASTER- |   C |    60 | 19.0 |        
    1075 |             MASTER- |   C |    60 | 19.1 |        
    1148 |             MASTER- |   C |    60 | 19.0 |        
    1148 |             MASTER- |   C |    60 | 19.0 |        
    1254 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    1254 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    1221 |             MASTER- |   C |    60 | 19.0 |        
    1221 |             MASTER- |   C |    60 | 18.7 |        
    1295 |             MASTER- |   C |    60 | 19.0 |        
    1295 |             MASTER- |   C |    60 | 19.0 |        
    1368 |             MASTER- |   C |    60 | 19.0 |        
    1368 |             MASTER- |   C |    60 | 19.0 |        
    1455 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1455 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1635 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    1440 |             MASTER- |   C |    60 | 18.9 |        
    1440 |             MASTER- |   C |    60 | 18.9 |        
    1514 |             MASTER- |   C |    60 | 19.1 |        
    1514 |             MASTER- |   C |    60 | 18.9 |        
    1587 |             MASTER- |   C |    60 | 19.0 |        
    1587 |             MASTER- |   C |    60 | 19.1 |        
    1656 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1836 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    1656 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    1660 |             MASTER- |   C |    60 | 18.9 |        
    1660 |             MASTER- |   C |    60 | 19.1 |        
    1732 |             MASTER- |   C |    60 | 18.9 |        
    1732 |             MASTER- |   C |    60 | 19.1 |        
    1857 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    1857 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    1807 |             MASTER- |   C |    60 | 18.9 |        
    1807 |             MASTER- |   C |    60 | 19.2 |        
    1880 |             MASTER- |   C |    60 | 18.7 |        
    1880 |             MASTER- |   C |    60 | 18.8 |        
    1953 |             MASTER- |   C |    60 | 18.9 |        
    1953 |             MASTER- |   C |    60 | 18.8 |        
    2057 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2057 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2237 |   MASTER-Kislovodsk |  P| |   540 | 19.3 |  Coadd 
    2025 |             MASTER- |   C |    60 | 19.0 |        
    2025 |             MASTER- |   C |    60 | 18.9 |        
    2099 |             MASTER- |   C |    60 | 19.0 |        
    2100 |             MASTER- |   C |    60 | 19.0 |        
    2174 |             MASTER- |   C |    60 | 19.1 |        
    2174 |             MASTER- |   C |    60 | 19.0 |        
    2258 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    2438 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    2258 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    2247 |             MASTER- |   C |    60 | 18.8 |        
    2248 |             MASTER- |   C |    60 | 19.0 |        
    2323 |             MASTER- |   C |    60 | 19.0 |        
    2323 |             MASTER- |   C |    60 | 18.9 |        
    2397 |             MASTER- |   C |    60 | 19.0 |        
    2397 |             MASTER- |   C |    60 | 19.0 |        
    2459 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2459 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2469 |             MASTER- |   C |    60 | 19.1 |        
    2469 |             MASTER- |   C |    60 | 19.3 |        
    2541 |             MASTER- |   C |    60 | 19.0 |        
    2542 |             MASTER- |   C |    60 | 19.1 |        
    2661 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2661 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    2841 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    2613 |             MASTER- |   C |    60 | 19.1 |        
    2613 |             MASTER- |   C |    60 | 19.1 |        
    2688 |             MASTER- |   C |    60 | 19.1 |        
    2688 |             MASTER- |   C |    60 | 18.8 |        
    2760 |             MASTER- |   C |    60 | 19.2 |        
    2760 |             MASTER- |   C |    60 | 19.1 |        
    2862 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3042 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    2862 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    2833 |             MASTER- |   C |    60 | 19.1 |        
    2833 |             MASTER- |   C |    60 | 18.9 |        
    2906 |             MASTER- |   C |    60 | 19.0 |        
    2906 |             MASTER- |   C |    60 | 19.0 |        
    2980 |             MASTER- |   C |    60 | 19.0 |        
    2980 |             MASTER- |   C |    60 | 19.2 |        
    3063 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3873 |   MASTER-Kislovodsk |  P- |  1800 | 18.9 |  Coadd 
    3063 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3873 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    3053 |             MASTER- |   C |    60 | 19.3 |        
    3053 |             MASTER- |   C |    60 | 19.0 |        
    3126 |             MASTER- |   C |    60 | 19.2 |        
    3126 |             MASTER- |   C |    60 | 19.0 |        
    3198 |             MASTER- |   C |    60 | 19.2 |        
    3198 |             MASTER- |   C |    60 | 19.3 |        
    3264 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    3264 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3444 |   MASTER-Kislovodsk |  P| |   540 | 19.6 |  Coadd 
    3271 |             MASTER- |   C |    60 | 18.9 |        
    3271 |             MASTER- |   C |    60 | 19.1 |        
    3343 |             MASTER- |   C |    60 | 18.6 |        
    3343 |             MASTER- |   C |    60 | 18.7 |        
    3465 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3645 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    3465 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3414 |             MASTER- |   C |    60 | 18.8 |        
    3414 |             MASTER- |   C |    60 | 18.9 |        
    3486 |             MASTER- |   C |    60 | 18.4 |        
    3486 |             MASTER- |   C |    60 | 18.7 |        
    3559 |             MASTER- |   C |    60 | 18.7 |        
    3559 |             MASTER- |   C |    60 | 18.8 |        
    3666 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3666 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    3632 |             MASTER- |   C |    60 | 18.0 |        
    3632 |             MASTER- |   C |    60 | 18.2 |        
    3704 |             MASTER- |   C |    60 | 18.3 |        
    3704 |             MASTER- |   C |    60 | 18.6 |        
    3783 |             MASTER- |   C |    60 | 18.1 |        
    3783 |             MASTER- |   C |    60 | 18.5 |        
    3867 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3867 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    4047 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    3854 |             MASTER- |   C |    60 | 17.8 |        
    3854 |             MASTER- |   C |    60 | 18.3 |        
    3929 |             MASTER- |   C |    60 | 18.1 |        
    3929 |             MASTER- |   C |    60 | 18.4 |        
    4002 |             MASTER- |   C |    60 | 17.6 |        
    4002 |             MASTER- |   C |    60 | 18.3 |        
    4068 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4248 |   MASTER-Kislovodsk |  P- |   540 | 18.4 |  Coadd 
    4068 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4075 |             MASTER- |   C |    60 | 17.4 |        
    4076 |             MASTER- |   C |    60 | 17.7 |        
    4148 |             MASTER- |   C |    60 | 16.8 |        
    4148 |             MASTER- |   C |    60 | 17.3 |        
    4269 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4269 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4219 |             MASTER- |   C |    60 | 16.4 |        
    4219 |             MASTER- |   C |    60 | 16.8 |        
    4291 |             MASTER- |   C |    60 | 16.6 |        
    4291 |             MASTER- |   C |    60 | 16.8 |        
    4369 |             MASTER- |   C |    60 | 16.6 |        
    4369 |             MASTER- |   C |    60 | 17.0 |        
    4469 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    4469 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    4649 |   MASTER-Kislovodsk |  P| |   540 | 19.1 |  Coadd 
    4443 |             MASTER- |   C |    60 | 16.5 |        
    4443 |             MASTER- |   C |    60 | 16.7 |        
    4518 |             MASTER- |   C |    60 | 16.0 |        
    4670 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    4850 |   MASTER-Kislovodsk |  P- |   540 | 17.7 |  Coadd 
    4670 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    4871 |   MASTER-Kislovodsk |  P- |   180 | 16.9 |        
    4871 |   MASTER-Kislovodsk |  P| |   180 | 17.9 |        
    5072 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5882 |   MASTER-Kislovodsk |  P- |  1800 | 17.5 |  Coadd 
    5072 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    5252 |   MASTER-Kislovodsk |  P| |   540 | 18.0 |  Coadd 
    5882 |   MASTER-Kislovodsk |  P| |  1800 | 18.5 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5452 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P| |   180 | 17.3 |        
    5474 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5474 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5675 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5675 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5855 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    6056 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    6077 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    6077 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    6278 |   MASTER-Kislovodsk |  P- |   180 | 16.4 |        
    6278 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    6458 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
    6659 |   MASTER-Kislovodsk |  P- |   540 | 17.5 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P| |   180 | 16.7 |        
    6680 |   MASTER-Kislovodsk |  P- |   180 | 17.2 |        
    6680 |   MASTER-Kislovodsk |  P| |   180 | 18.2 |        
    6881 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    6881 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    7061 |   MASTER-Kislovodsk |  P| |   540 | 19.2 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7262 |   MASTER-Kislovodsk |  P- |   540 | 18.2 |  Coadd 
    7892 |   MASTER-Kislovodsk |  P- |  1800 | 18.5 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    7892 |   MASTER-Kislovodsk |  P| |  1800 | 19.4 |  Coadd 
    7283 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7283 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    7483 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    7483 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    7663 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7865 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    7886 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7886 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    8087 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    8087 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8267 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    8467 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    8489 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    8489 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8690 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    8690 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    8870 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 
    8890 |   MASTER-Kislovodsk |  P- |   180 | 16.8 |        
    9070 |   MASTER-Kislovodsk |  P- |   540 | 17.7 |  Coadd 
    8890 |   MASTER-Kislovodsk |  P| |   180 | 17.8 |        
    9091 |   MASTER-Kislovodsk |  P- |   180 | 16.8 |        
    9091 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    9292 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    9292 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    9472 |   MASTER-Kislovodsk |  P| |   540 | 18.0 |  Coadd 
    9493 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    9673 |   MASTER-Kislovodsk |  P- |   540 | 16.3 |  Coadd 
    9493 |   MASTER-Kislovodsk |  P| |   180 | 17.3 |        
    9694 |   MASTER-Kislovodsk |  P- |   180 | 15.5 |        
    9694 |   MASTER-Kislovodsk |  P| |   180 | 16.0 |        
    9895 |   MASTER-Kislovodsk |  P- |   180 | 14.3 |        
    9896 |   MASTER-Kislovodsk |  P| |   180 | 15.0 |        
   10096 |   MASTER-Kislovodsk |  P- |   180 | 15.2 |        
   10097 |   MASTER-Kislovodsk |  P| |   180 | 15.8 |        
   10297 |   MASTER-Kislovodsk |  P- |   180 | 13.0 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3956
TYPE = 35
DAYS = 0.1


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.36s , +76d 52m 15.2s, R=0.0333333) errorbox  27 sec after notice time and 38 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567266

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      43 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      63 |   MASTER-Kislovodsk |  P- |    50 | 16.8 |  Coadd 
     433 |   MASTER-Kislovodsk |  P- |   790 | 17.4 |  Coadd 
      43 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      53 |   MASTER-Kislovodsk |  P| |    30 | 16.7 |  Coadd 
     398 |   MASTER-Kislovodsk |  P| |   720 | 19.2 |  Coadd 
      61 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      61 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        
      79 |   MASTER-Kislovodsk |  P- |    10 | 14.7 |        
      79 |   MASTER-Kislovodsk |  P| |    10 | 16.0 |        
     105 |   MASTER-Kislovodsk |  P- |    20 | 16.3 |        
     105 |   MASTER-Kislovodsk |  P| |    20 | 16.8 |        
     130 |   MASTER-Kislovodsk |  P| |    70 | 17.6 |  Coadd 
     133 |   MASTER-Kislovodsk |  P- |    20 | 16.6 |        
     133 |   MASTER-Kislovodsk |  P| |    20 | 16.6 |        
     166 |   MASTER-Kislovodsk |  P- |    30 | 16.7 |        
     211 |   MASTER-Kislovodsk |  P- |   120 | 17.3 |  Coadd 
     166 |   MASTER-Kislovodsk |  P| |    30 | 17.3 |        
     209 |   MASTER-Kislovodsk |  P- |    40 | 16.7 |        
     209 |   MASTER-Kislovodsk |  P| |    40 | 17.4 |        
     264 |   MASTER-Kislovodsk |  P| |   150 | 18.2 |  Coadd 
     262 |   MASTER-Kislovodsk |  P- |    50 | 16.7 |        
     262 |   MASTER-Kislovodsk |  P| |    50 | 17.5 |        
     325 |   MASTER-Kislovodsk |  P- |    60 | 16.8 |        
     405 |   MASTER-Kislovodsk |  P- |   220 | 17.7 |  Coadd 
     325 |   MASTER-Kislovodsk |  P| |    60 | 17.5 |        
     398 |   MASTER-Kislovodsk |  P- |    70 | 16.7 |        
     398 |   MASTER-Kislovodsk |  P| |    70 | 17.7 |        
     518 |   MASTER-Kislovodsk |  P| |   310 | 19.2 |  Coadd 
     486 |   MASTER-Kislovodsk |  P- |    90 | 17.0 |        
     594 |   MASTER-Kislovodsk |  P- |   110 | 17.4 |        
     739 |   MASTER-Kislovodsk |  P- |   400 | 18.5 |  Coadd 
     594 |   MASTER-Kislovodsk |  P| |   110 | 18.5 |        
     722 |   MASTER-Kislovodsk |  P- |   130 | 17.7 |        
     722 |   MASTER-Kislovodsk |  P| |   130 | 18.5 |        
     875 |   MASTER-Kislovodsk |  P- |   160 | 17.9 |        
     875 |   MASTER-Kislovodsk |  P| |   160 | 18.9 |        
    1053 |   MASTER-Kislovodsk |  P- |   180 | 18.1 |        
    1233 |   MASTER-Kislovodsk |  P- |   540 | 18.7 |  Coadd 
    1863 |   MASTER-Kislovodsk |  P- |  1800 | 18.7 |  Coadd 
    1053 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1863 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    1254 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    1254 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    1455 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1455 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    1635 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    1656 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    1836 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    1656 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    1857 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    1857 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    2057 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2057 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2237 |   MASTER-Kislovodsk |  P| |   540 | 19.3 |  Coadd 
    2258 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    2438 |   MASTER-Kislovodsk |  P- |   540 | 18.3 |  Coadd 
    2258 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    2459 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2459 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    2661 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    2661 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    2841 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    2862 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3042 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    2862 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    3063 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3873 |   MASTER-Kislovodsk |  P- |  1800 | 18.9 |  Coadd 
    3063 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3873 |   MASTER-Kislovodsk |  P| |  1800 | 19.6 |  Coadd 
    3264 |   MASTER-Kislovodsk |  P- |   180 | 17.9 |        
    3264 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3444 |   MASTER-Kislovodsk |  P| |   540 | 19.6 |  Coadd 
    3465 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3645 |   MASTER-Kislovodsk |  P- |   540 | 18.5 |  Coadd 
    3465 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    3666 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    3666 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    3867 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    3867 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    4047 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    4068 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4248 |   MASTER-Kislovodsk |  P- |   540 | 18.4 |  Coadd 
    4068 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4269 |   MASTER-Kislovodsk |  P- |   180 | 17.8 |        
    4269 |   MASTER-Kislovodsk |  P| |   180 | 18.9 |        
    4469 |   MASTER-Kislovodsk |  P- |   180 | 17.7 |        
    4469 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    4649 |   MASTER-Kislovodsk |  P| |   540 | 19.1 |  Coadd 
    4670 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    4850 |   MASTER-Kislovodsk |  P- |   540 | 17.7 |  Coadd 
    4670 |   MASTER-Kislovodsk |  P| |   180 | 18.4 |        
    4871 |   MASTER-Kislovodsk |  P- |   180 | 16.9 |        
    4871 |   MASTER-Kislovodsk |  P| |   180 | 17.9 |        
    5072 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5882 |   MASTER-Kislovodsk |  P- |  1800 | 17.5 |  Coadd 
    5072 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    5252 |   MASTER-Kislovodsk |  P| |   540 | 18.0 |  Coadd 
    5882 |   MASTER-Kislovodsk |  P| |  1800 | 18.5 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    5452 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5272 |   MASTER-Kislovodsk |  P| |   180 | 17.3 |        
    5474 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5474 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5675 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    5675 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    5855 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    6056 |   MASTER-Kislovodsk |  P- |   540 | 17.3 |  Coadd 
    5876 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    6077 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    6077 |   MASTER-Kislovodsk |  P| |   180 | 17.6 |        
    6278 |   MASTER-Kislovodsk |  P- |   180 | 16.4 |        
    6278 |   MASTER-Kislovodsk |  P| |   180 | 17.4 |        
    6458 |   MASTER-Kislovodsk |  P| |   540 | 18.3 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P- |   180 | 16.0 |        
    6659 |   MASTER-Kislovodsk |  P- |   540 | 17.5 |  Coadd 
    6479 |   MASTER-Kislovodsk |  P| |   180 | 16.7 |        
    6680 |   MASTER-Kislovodsk |  P- |   180 | 17.2 |        
    6680 |   MASTER-Kislovodsk |  P| |   180 | 18.2 |        
    6881 |   MASTER-Kislovodsk |  P- |   180 | 17.3 |        
    6881 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    7061 |   MASTER-Kislovodsk |  P| |   540 | 19.2 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7262 |   MASTER-Kislovodsk |  P- |   540 | 18.2 |  Coadd 
    7892 |   MASTER-Kislovodsk |  P- |  1800 | 18.5 |  Coadd 
    7082 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    7892 |   MASTER-Kislovodsk |  P| |  1800 | 19.4 |  Coadd 
    7283 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7283 |   MASTER-Kislovodsk |  P| |   180 | 18.8 |        
    7483 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    7483 |   MASTER-Kislovodsk |  P| |   180 | 18.7 |        
    7663 |   MASTER-Kislovodsk |  P| |   540 | 19.4 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    7865 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    7685 |   MASTER-Kislovodsk |  P| |   180 | 18.6 |        
    7886 |   MASTER-Kislovodsk |  P- |   180 | 17.4 |        
    7886 |   MASTER-Kislovodsk |  P| |   180 | 18.3 |        
    8087 |   MASTER-Kislovodsk |  P- |   180 | 16.6 |        
    8087 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8267 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P- |   180 | 17.5 |        
    8467 |   MASTER-Kislovodsk |  P- |   540 | 17.8 |  Coadd 
    8287 |   MASTER-Kislovodsk |  P| |   180 | 19.0 |        
    8489 |   MASTER-Kislovodsk |  P- |   180 | 16.7 |        
    8489 |   MASTER-Kislovodsk |  P| |   180 | 17.5 |        
    8690 |   MASTER-Kislovodsk |  P- |   180 | 17.6 |        
    8690 |   MASTER-Kislovodsk |  P| |   180 | 18.5 |        
    8870 |   MASTER-Kislovodsk |  P| |   540 | 18.5 |  Coadd 


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3955
TYPE = 35
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.09s , +76d 52m 36.7s, R=0.0491667) errorbox  27 sec after notice time and 41 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567228

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      46 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      46 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      64 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      64 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3954
TYPE = 35
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.09s , +76d 52m 36.7s, R=0.0491667) errorbox  27 sec after notice time and 41 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567228

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      46 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      46 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      64 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      64 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        


The observation and reduction will continue. 
The message may be cited.



#######################################################################################
#######################################################################################

  ID = 3953
TYPE = 34
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the INTEGRAL GRB210312.87 (trigger No 9073,10h 23m 22.09s , +76d 52m 36.7s, R=0.0491667) errorbox  27 sec after notice time and 41 sec after trigger time at 2021-03-12 20:52:58 UT, with upper limit up to  15.9 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.6 deg. 

The galactic latitude b = 38 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1567228

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      46 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      46 |   MASTER-Kislovodsk |  P| |    10 | 15.8 |        
      64 |   MASTER-Kislovodsk |  P- |    10 | 14.9 |        
      64 |   MASTER-Kislovodsk |  P| |    10 | 15.9 |        


The observation and reduction will continue. 
The message may be cited.

MASTER, 2002-2024

MASTER Net MASTER Database: GRB210312.87 page

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Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

MASTER WFC:
Raw | Processing | Search
Single sets | Single images
SN | Asteroid | Transient | Comet

MASTER II:
Raw | Processing | Search by orbit elements | Search
SN | Asteroid | Transient | Two tube | Short transient | Tr. difference | Comet | Nova M31 | GRB | GRB_HPX | LIGO
Manual control | Planner | Planner Results | Planner NET

General:
SN list | Sky map | Add asteroid
Meteo | Focus | MASTER page
Users list | Users statistic | Logout

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