MASTER Net MASTER Database: GRB190821.72 page

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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GRB coord: ErrorBox (deg): Sys Error (deg):
Sattel : Trigger: Notice:
GRB_Name: trignum: Nights after: FullSky


Name SWIFT GRB190821.72
Trignum 921722
Trigger time 2019-08-21 17:11:21
Notice time 2019-08-21 17:12:28.967455
Coord, eb (16h 40m 13.20s , -34d 00m 25.2s) , 0.00130556
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)

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
1111611 2019-08-21 17:23:16.737662 16h 40m 25.68s -34d 00m 54.0s SWIFT 0.07 alert 921722 1 80 alert
1111626 2019-08-21 17:24:41.672662 16h 40m 25.68s -34d 00m 54.0s SWIFT 58810.1 alert 921722 1 79 alert
1111561 2019-08-21 17:12:35.926586 16h 40m 13.20s -34d 00m 25.2s SWIFT 0 alert 921722 1 78 alert
1111605 2019-08-21 17:23:03.202103 16h 40m 25.68s -34d 00m 54.0s SWIFT 0 alert 921722 2 73 alert
1111619 2019-08-21 17:24:24.832469 16h 40m 25.68s -34d 00m 54.0s SWIFT 0 alert 921722 2 72 alert
1111557 2019-08-21 17:12:28.967455 16h 40m 13.20s -34d 00m 25.2s SWIFT 0.00130556 alert 921722 1 69 alert
1191259 2019-11-08 21:30:50.953124 16h 40m 13.20s -34d 00m 25.2s SWIFT 0.001 alert 921722 2 67 alert
1191252 2019-11-08 21:30:28.932776 16h 40m 18.48s -34d 01m 19.2s SWIFT 0.05 alert 921722 3 61 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory links
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2019-08-21 17:11:21 (JD 2458717.216215)

Siderial time 17.679505 h

Ra 16:40:13.20 Dec -34:00:25.20
(250.055000d, -34.007000d)

Rise 2019-08-22 15:10:37

Transit 2019-08-22 16:07:02

Set 2019-08-22 17:03:27

Amur

Object: Altitude: -34.57 Azimuth: 76.52

Sun: Altitude: -23.88 Azimuth: 206.64

Moon: Altitude: 36.91 Azimuth: 306.87

Tunka

Object: Altitude: -20.84 Azimuth: 61.05

Sun: Altitude: -26.05 Azimuth: 180.41

Moon: Altitude: 22.50 Azimuth: 284.70

Kislovodsk

Object: Altitude: 10.13 Azimuth: 16.77

Sun: Altitude: -11.89 Azimuth: 119.93

Moon: Altitude: -17.75 Azimuth: 237.80

Tavrida

Object: Altitude: 10.57 Azimuth: 9.71

Sun: Altitude: -6.01 Azimuth: 113.69

Moon: Altitude: -22.11 Azimuth: 230.28

SAAO

Object: Altitude: 87.86 Azimuth: 319.79

Sun: Altitude: -13.25 Azimuth: 96.11

Moon: Altitude: -51.57 Azimuth: 300.15

IAC

Object: Altitude: 17.59 Azimuth: 326.83

Sun: Altitude: 31.31 Azimuth: 87.25

Moon: Altitude: -52.50 Azimuth: 172.92

Argentina

Object: Altitude: 15.81 Azimuth: 300.55

Sun: Altitude: 45.40 Azimuth: 168.85

Moon: Altitude: -32.49 Azimuth: 79.77

Mexico

Object: Altitude: -50.50 Azimuth: 287.22

Sun: Altitude: 54.13 Azimuth: 294.44

Moon: Altitude: 11.62 Azimuth: 93.54

Ural

Object: Altitude: -6.28 Azimuth: 30.17

Sun: Altitude: -12.22 Azimuth: 136.84

Moon: Altitude: -2.18 Azimuth: 249.80

Vostryakovo

Object: Altitude: -0.35 Azimuth: 12.66

Sun: Altitude: -3.60 Azimuth: 117.51

Moon: Altitude: -13.46 Azimuth: 231.05

Gal. latitude: 7.743610 Gal. longitude: 348.069389

Dist. to Sun: 104.799547

Dist. to Moon: 139.541327

Moon coord.: (35.419215 d, 8.963771 d)

Sun coord.: (150.262992 d, 12.138482 d)

Lunar disk: 0.687595

Lunar phase: 67.963977

Lunar bright limb: 72.969899

No SN in this field

2019-08-21 17:12:28 (JD 2458717.216991)

Siderial time 17.698167 h

Ra 16:40:13.20 Dec -34:00:25.20
(250.055000d, -34.007000d)

Rise 2019-08-22 15:10:37

Transit 2019-08-22 16:07:02

Set 2019-08-22 17:03:27

Amur

Object: Altitude: -34.75 Azimuth: 76.70

Sun: Altitude: -23.80 Azimuth: 206.93

Moon: Altitude: 37.05 Azimuth: 307.15

Tunka

Object: Altitude: -20.99 Azimuth: 61.24

Sun: Altitude: -26.05 Azimuth: 180.71

Moon: Altitude: 22.67 Azimuth: 284.93

Kislovodsk

Object: Altitude: 10.07 Azimuth: 17.00

Sun: Altitude: -12.06 Azimuth: 120.14

Moon: Altitude: -17.58 Azimuth: 238.02

Tavrida

Object: Altitude: 10.53 Azimuth: 9.94

Sun: Altitude: -6.19 Azimuth: 113.90

Moon: Altitude: -21.95 Azimuth: 230.52

SAAO

Object: Altitude: 88.00 Azimuth: 324.81

Sun: Altitude: -13.49 Azimuth: 95.97

Moon: Altitude: -51.37 Azimuth: 299.86

IAC

Object: Altitude: 17.72 Azimuth: 327.03

Sun: Altitude: 31.06 Azimuth: 87.39

Moon: Altitude: -52.52 Azimuth: 173.36

Argentina

Object: Altitude: 16.02 Azimuth: 300.44

Sun: Altitude: 45.35 Azimuth: 168.47

Moon: Altitude: -32.72 Azimuth: 79.60

Mexico

Object: Altitude: -50.27 Azimuth: 287.27

Sun: Altitude: 54.34 Azimuth: 294.72

Moon: Altitude: 11.39 Azimuth: 93.68

Ural

Object: Altitude: -6.35 Azimuth: 30.39

Sun: Altitude: -12.32 Azimuth: 137.09

Moon: Altitude: -2.04 Azimuth: 250.03

Vostryakovo

Object: Altitude: -0.38 Azimuth: 12.89

Sun: Altitude: -3.74 Azimuth: 117.75

Moon: Altitude: -13.34 Azimuth: 231.29

Gal. latitude: 7.743610 Gal. longitude: 348.069389

Dist. to Sun: 104.798817

Dist. to Moon: 139.550061

Moon coord.: (35.428181 d, 8.967121 d)

Sun coord.: (150.263708 d, 12.138224 d)

Lunar disk: 0.687524

Lunar phase: 67.972678

Lunar bright limb: 72.971123

No SN in this field

2019-08-21 18:12:28 (JD 2458717.258657)

Siderial time 18.700905 h

Ra 16:40:13.20 Dec -34:00:25.20
(250.055000d, -34.007000d)

Rise 2019-08-22 15:10:37

Transit 2019-08-22 16:07:02

Set 2019-08-22 17:03:27

Amur

Object: Altitude: -44.24 Azimuth: 87.20

Sun: Altitude: -18.42 Azimuth: 221.56

Moon: Altitude: 43.72 Azimuth: 323.93

Tunka

Object: Altitude: -29.49 Azimuth: 71.32

Sun: Altitude: -24.64 Azimuth: 196.88

Moon: Altitude: 31.18 Azimuth: 297.95

Kislovodsk

Object: Altitude: 5.83 Azimuth: 28.83

Sun: Altitude: -20.81 Azimuth: 132.43

Moon: Altitude: -8.03 Azimuth: 249.06

Tavrida

Object: Altitude: 7.57 Azimuth: 22.20

Sun: Altitude: -15.45 Azimuth: 125.49

Moon: Altitude: -13.19 Azimuth: 242.49

SAAO

Object: Altitude: 78.47 Azimuth: 78.18

Sun: Altitude: -26.13 Azimuth: 88.05

Moon: Altitude: -40.18 Azimuth: 286.81

IAC

Object: Altitude: 23.79 Azimuth: 338.67

Sun: Altitude: 17.86 Azimuth: 94.43

Moon: Altitude: -51.21 Azimuth: 196.65

Argentina

Object: Altitude: 27.35 Azimuth: 294.85

Sun: Altitude: 40.74 Azimuth: 149.35

Moon: Altitude: -44.75 Azimuth: 69.44

Mexico

Object: Altitude: -38.09 Azimuth: 290.95

Sun: Altitude: 64.94 Azimuth: 315.15

Moon: Altitude: -0.87 Azimuth: 101.23

Ural

Object: Altitude: -11.18 Azimuth: 42.02

Sun: Altitude: -17.10 Azimuth: 151.44

Moon: Altitude: 5.79 Azimuth: 262.10

Vostryakovo

Object: Altitude: -3.16 Azimuth: 25.04

Sun: Altitude: -10.79 Azimuth: 130.72

Moon: Altitude: -6.20 Azimuth: 243.97

Gal. latitude: 7.743610 Gal. longitude: 348.069389

Dist. to Sun: 104.759600

Dist. to Moon: 140.019107

Moon coord.: (35.910363 d, 9.146860 d)

Sun coord.: (150.302211 d, 12.124365 d)

Lunar disk: 0.683735

Lunar phase: 68.440370

Lunar bright limb: 73.037890

No SN in this field

2024-03-29 14:44:50 (JD 2460399.114468)

Siderial time 5.754800 h

Ra 16:40:13.20 Dec -34:00:25.20
(250.055000d, -34.007000d)

Rise 2024-03-30 00:41:37

Transit 2024-03-30 01:37:59

Set 2024-03-30 02:34:20

Amur

Object: Altitude: -16.46 Azimuth: 303.86

Sun: Altitude: -35.08 Azimuth: 165.14

Moon: Altitude: 0.86 Azimuth: 308.91

Tunka

Object: Altitude: -30.89 Azimuth: 287.07

Sun: Altitude: -26.51 Azimuth: 138.37

Moon: Altitude: -13.14 Azimuth: 290.49

Kislovodsk

Object: Altitude: -70.94 Azimuth: 246.45

Sun: Altitude: 7.61 Azimuth: 87.69

Moon: Altitude: -52.93 Azimuth: 248.13

Tavrida

Object: Altitude: -75.51 Azimuth: 226.60

Sun: Altitude: 13.58 Azimuth: 81.46

Moon: Altitude: -57.88 Azimuth: 236.84

SAAO

Object: Altitude: -23.61 Azimuth: 0.49

Sun: Altitude: 21.88 Azimuth: 109.55

Moon: Altitude: -32.70 Azimuth: 342.78

IAC

Object: Altitude: -57.29 Azimuth: 70.30

Sun: Altitude: 56.44 Azimuth: 46.93

Moon: Altitude: -69.80 Azimuth: 100.51

Argentina

Object: Altitude: 17.64 Azimuth: 60.44

Sun: Altitude: 45.17 Azimuth: 223.25

Moon: Altitude: -0.27 Azimuth: 62.54

Mexico

Object: Altitude: 10.62 Azimuth: 39.00

Sun: Altitude: 18.95 Azimuth: 277.43

Moon: Altitude: 7.98 Azimuth: 57.08

Ural

Object: Altitude: -55.46 Azimuth: 244.69

Sun: Altitude: -2.35 Azimuth: 100.28

Moon: Altitude: -38.20 Azimuth: 252.39

Vostryakovo

Object: Altitude: -65.77 Azimuth: 214.91

Sun: Altitude: 9.65 Azimuth: 82.28

Moon: Altitude: -49.54 Azimuth: 230.05

Gal. latitude: 7.743610 Gal. longitude: 348.069389

Dist. to Sun: 115.271615

Dist. to Moon: 18.026872

Moon coord.: (233.825821 d, -22.920103 d)

Sun coord.: (8.325161 d, 3.593763 d)

Lunar disk: 0.835046

Lunar phase: 47.925844

Lunar bright limb: 106.782763

No SN in this field

Recent coverage and limits telegrams

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

  ID = 1509
TYPE = 35
DAYS = 1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190821.72 (trigger No 921722, 16h 40m 18.48s , -34d  1m 19.20s, R=0.05) errorbox  8 sec after notice time and 41 sec after trigger time at 2019-08-21 17:10:44 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenit distance =  3 deg. The sun  altitude  is -12.4 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB190821.72 errorbox  8 sec after notice time and 5444 sec after trigger time at 2019-08-21 18:40:47 UT, with upper limit up to  13.9 mag. The observations began at zenit distance = 84 deg. The sun  altitude  is -19.9 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1111516

We obtain a following upper limits.  

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

      46 |         MASTER-SAAO |  P\ |    10 | 16.3 |        
      73 |         MASTER-SAAO |  P\ |    10 | 16.4 |        
      98 |         MASTER-SAAO |  P\ |    60 | 17.3 |  Coadd 
     463 |         MASTER-SAAO |  P\ |   790 | 18.4 |  Coadd 
     104 |         MASTER-SAAO |  P\ |    20 | 16.9 |        
     145 |         MASTER-SAAO |  P\ |    30 | 17.0 |        
     195 |         MASTER-SAAO |  P\ |    40 | 17.3 |        
     250 |         MASTER-SAAO |  P\ |   150 | 17.9 |  Coadd 
     256 |         MASTER-SAAO |  P\ |    50 | 17.4 |        
     328 |         MASTER-SAAO |  P\ |    60 | 17.6 |        
     408 |         MASTER-SAAO |  P\ |    70 | 17.6 |        
     508 |         MASTER-SAAO |  P\ |   270 | 18.1 |  Coadd 
     504 |         MASTER-SAAO |  P\ |    90 | 17.5 |        
     620 |         MASTER-SAAO |  P\ |   110 | 18.0 |        
     766 |         MASTER-SAAO |  P\ |   140 | 18.0 |        
     941 |         MASTER-SAAO |  P\ |   490 | 18.4 |  Coadd 
     937 |         MASTER-SAAO |  P\ |   170 | 18.2 |        
    1133 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1943 |         MASTER-SAAO |  P\ |  1800 | 18.1 |  Coadd 
    1342 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    1522 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    1550 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    1761 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1970 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2150 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2181 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    2390 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    2601 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2781 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2810 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3020 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    3228 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3408 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4038 |         MASTER-SAAO |  P\ |  1800 | 18.1 |  Coadd 
    3439 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    3649 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    3860 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4040 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4068 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    4277 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    4486 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4666 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4695 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    4908 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5116 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5325 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    5535 |      MASTER-Tavrida |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 1507
TYPE = 35
DAYS = 0.5


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190821.72 (trigger No 921722, 16h 40m 18.48s , -34d  1m 19.20s, R=0.05) errorbox  8 sec after notice time and 41 sec after trigger time at 2019-08-21 17:10:44 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenit distance =  3 deg. The sun  altitude  is -12.4 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB190821.72 errorbox  8 sec after notice time and 5444 sec after trigger time at 2019-08-21 18:40:47 UT, with upper limit up to  13.9 mag. The observations began at zenit distance = 84 deg. The sun  altitude  is -19.9 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1111516

We obtain a following upper limits.  

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

      46 |         MASTER-SAAO |  P\ |    10 | 16.3 |        
      73 |         MASTER-SAAO |  P\ |    10 | 16.4 |        
      98 |         MASTER-SAAO |  P\ |    60 | 17.3 |  Coadd 
     463 |         MASTER-SAAO |  P\ |   790 | 18.4 |  Coadd 
     104 |         MASTER-SAAO |  P\ |    20 | 16.9 |        
     145 |         MASTER-SAAO |  P\ |    30 | 17.0 |        
     195 |         MASTER-SAAO |  P\ |    40 | 17.3 |        
     250 |         MASTER-SAAO |  P\ |   150 | 17.9 |  Coadd 
     256 |         MASTER-SAAO |  P\ |    50 | 17.4 |        
     328 |         MASTER-SAAO |  P\ |    60 | 17.6 |        
     408 |         MASTER-SAAO |  P\ |    70 | 17.6 |        
     508 |         MASTER-SAAO |  P\ |   270 | 18.1 |  Coadd 
     504 |         MASTER-SAAO |  P\ |    90 | 17.5 |        
     620 |         MASTER-SAAO |  P\ |   110 | 18.0 |        
     766 |         MASTER-SAAO |  P\ |   140 | 18.0 |        
     941 |         MASTER-SAAO |  P\ |   490 | 18.4 |  Coadd 
     937 |         MASTER-SAAO |  P\ |   170 | 18.2 |        
    1133 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1943 |         MASTER-SAAO |  P\ |  1800 | 18.1 |  Coadd 
    1342 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    1522 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    1550 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    1761 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1970 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2150 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2181 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    2390 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    2601 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2781 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2810 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3020 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    3228 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3408 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4038 |         MASTER-SAAO |  P\ |  1800 | 18.1 |  Coadd 
    3439 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    3649 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    3860 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4040 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4068 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    4277 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    4486 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4666 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4695 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    4908 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5116 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5325 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    5535 |      MASTER-Tavrida |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 1504
TYPE = 35
DAYS = 0.1


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190821.72 (trigger No 921722, 16h 40m 18.48s , -34d  1m 19.20s, R=0.05) errorbox  8 sec after notice time and 41 sec after trigger time at 2019-08-21 17:10:44 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenit distance =  3 deg. The sun  altitude  is -12.4 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB190821.72 errorbox  8 sec after notice time and 5444 sec after trigger time at 2019-08-21 18:40:47 UT, with upper limit up to  13.9 mag. The observations began at zenit distance = 84 deg. The sun  altitude  is -19.9 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1111516

We obtain a following upper limits.  

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

      46 |         MASTER-SAAO |  P\ |    10 | 16.3 |        
      73 |         MASTER-SAAO |  P\ |    10 | 16.4 |        
      98 |         MASTER-SAAO |  P\ |    60 | 17.3 |  Coadd 
     104 |         MASTER-SAAO |  P\ |    20 | 16.9 |        
     145 |         MASTER-SAAO |  P\ |    30 | 17.0 |        
     195 |         MASTER-SAAO |  P\ |    40 | 17.3 |        
     250 |         MASTER-SAAO |  P\ |   150 | 17.9 |  Coadd 
     256 |         MASTER-SAAO |  P\ |    50 | 17.4 |        
     328 |         MASTER-SAAO |  P\ |    60 | 17.6 |        
     408 |         MASTER-SAAO |  P\ |    70 | 17.6 |        
     508 |         MASTER-SAAO |  P\ |   270 | 18.1 |  Coadd 
     504 |         MASTER-SAAO |  P\ |    90 | 17.5 |        
     620 |         MASTER-SAAO |  P\ |   110 | 18.0 |        
     766 |         MASTER-SAAO |  P\ |   140 | 18.0 |        
     941 |         MASTER-SAAO |  P\ |   490 | 18.4 |  Coadd 
     937 |         MASTER-SAAO |  P\ |   170 | 18.2 |        
    1133 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1342 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    1522 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    1550 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    1761 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    1970 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2150 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2181 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    2390 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    2601 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    2781 |         MASTER-SAAO |  P\ |   540 | 18.0 |  Coadd 
    2810 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3020 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    3228 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    3408 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    3439 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    3649 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    3860 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4040 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4068 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    4277 |         MASTER-SAAO |  P\ |   180 | 17.6 |        
    4486 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    4666 |         MASTER-SAAO |  P\ |   540 | 17.9 |  Coadd 
    4695 |         MASTER-SAAO |  P\ |   180 | 17.5 |        
    4908 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5116 |         MASTER-SAAO |  P\ |   180 | 17.8 |        
    5325 |         MASTER-SAAO |  P\ |   180 | 17.7 |        
    5535 |      MASTER-Tavrida |   C |   180 | 13.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 1503
TYPE = 34
DAYS = 0


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190821.72 (trigger No 921722, 16h 40m 18.48s , -34d  1m 19.20s, R=0.05) errorbox  8 sec after notice time and 41 sec after trigger time at 2019-08-21 17:10:44 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenit distance =  3 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1111516

We obtain a following upper limits.  

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

      46 |         MASTER-SAAO |  P\ |    10 | 16.3 |        
      73 |         MASTER-SAAO |  P\ |    10 | 16.4 |        
      98 |         MASTER-SAAO |  P\ |    60 | 17.3 |  Coadd 
     104 |         MASTER-SAAO |  P\ |    20 | 16.9 |        
     145 |         MASTER-SAAO |  P\ |    30 | 17.0 |        
     195 |         MASTER-SAAO |  P\ |    40 | 17.3 |        
     250 |         MASTER-SAAO |  P\ |   150 | 17.9 |  Coadd 
     256 |         MASTER-SAAO |  P\ |    50 | 17.4 |        
     328 |         MASTER-SAAO |  P\ |    60 | 17.6 |        
     508 |         MASTER-SAAO |  P\ |   270 | 18.1 |  Coadd 
     941 |         MASTER-SAAO |  P\ |   490 | 18.4 |  Coadd 


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



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

  ID = 1502
TYPE = 35
DAYS = 0.03


MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB190821.72 (trigger No 921722, 16h 40m 18.48s , -34d  1m 19.20s, R=0.05) errorbox  8 sec after notice time and 41 sec after trigger time at 2019-08-21 17:10:44 UT, with upper limit up to  18.4 mag. Observations started at twilight.  The observations began at zenit distance =  3 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1111516

We obtain a following upper limits.  

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

      46 |         MASTER-SAAO |  P\ |    10 | 16.3 |        
      73 |         MASTER-SAAO |  P\ |    10 | 16.4 |        
      98 |         MASTER-SAAO |  P\ |    60 | 17.3 |  Coadd 
     104 |         MASTER-SAAO |  P\ |    20 | 16.9 |        
     145 |         MASTER-SAAO |  P\ |    30 | 17.0 |        
     195 |         MASTER-SAAO |  P\ |    40 | 17.3 |        
     250 |         MASTER-SAAO |  P\ |   150 | 17.9 |  Coadd 
     256 |         MASTER-SAAO |  P\ |    50 | 17.4 |        
     328 |         MASTER-SAAO |  P\ |    60 | 17.6 |        
     508 |         MASTER-SAAO |  P\ |   270 | 18.1 |  Coadd 
     941 |         MASTER-SAAO |  P\ |   490 | 18.4 |  Coadd 


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



 

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