MASTER Net MASTER Database: GRB200925.91 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 GRB200925.91
Trignum 997453
Trigger time 2020-09-25 21:50:37.02
Notice time 2020-09-25 21:51:21.527486
Coord, eb (16h 27m 24.24s , +78d 23m 38.4s) , 0.05
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You are viewing outdated information, relevant error box is here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
1449128 2020-09-25 22:04:42.360788 16h 27m 08.64s +78d 23m 24.0s SWIFT 0.000611111 alert 997453 2 67 alert
1449115 2020-09-25 21:51:26.177685 16h 27m 24.24s +78d 23m 38.4s SWIFT 0.05 alert 997453 1 61 alert

DAYS:

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

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

2020-09-25 21:50:37 (JD 2459118.410150)

Siderial time 0.696333 h

Ra 16:27:24.24 Dec 78:23:38.40
(246.851000d, 78.394000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 40.29 Azimuth: 188.36

Sun: Altitude: 3.90 Azimuth: 276.59

Moon: Altitude: -60.11 Azimuth: 146.57

Tunka

Object: Altitude: 40.32 Azimuth: 182.38

Sun: Altitude: -11.28 Azimuth: 257.34

Moon: Altitude: -47.51 Azimuth: 115.21

Kislovodsk

Object: Altitude: 35.93 Azimuth: 168.79

Sun: Altitude: -45.99 Azimuth: 198.30

Moon: Altitude: -7.80 Azimuth: 64.52

Tavrida

Object: Altitude: 38.17 Azimuth: 167.20

Sun: Altitude: -46.31 Azimuth: 185.94

Moon: Altitude: -2.89 Azimuth: 58.93

SAAO

Object: Altitude: -35.01 Azimuth: 166.40

Sun: Altitude: -55.34 Azimuth: 16.16

Moon: Altitude: 40.46 Azimuth: 85.16

IAC

Object: Altitude: 31.77 Azimuth: 167.20

Sun: Altitude: -38.07 Azimuth: 113.06

Moon: Altitude: 35.02 Azimuth: 20.86

Argentina

Object: Altitude: -20.63 Azimuth: 176.47

Sun: Altitude: 8.48 Azimuth: 93.88

Moon: Altitude: 58.76 Azimuth: 263.63

Mexico

Object: Altitude: 41.47 Azimuth: 186.37

Sun: Altitude: 40.42 Azimuth: 57.01

Moon: Altitude: -0.47 Azimuth: 297.64

Ural

Object: Altitude: 47.02 Azimuth: 170.38

Sun: Altitude: -29.36 Azimuth: 214.54

Moon: Altitude: -22.15 Azimuth: 80.26

Vostryakovo

Object: Altitude: 47.95 Azimuth: 165.54

Sun: Altitude: -35.43 Azimuth: 189.70

Moon: Altitude: -10.22 Azimuth: 62.79

Gal. latitude: 33.659358 Gal. longitude: 111.637197

Dist. to Sun: 86.130042

Dist. to Moon: 106.098709

Moon coord.: (297.753755 d, -23.684012 d)

Sun coord.: (182.746277 d, -1.190389 d)

Lunar disk: 0.690385

Lunar phase: 67.618605

Lunar bright limb: 258.229490

No SN in this field

2020-09-25 21:51:21 (JD 2459118.410660)

Siderial time 0.708589 h

Ra 16:27:24.24 Dec 78:23:38.40
(246.851000d, 78.394000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 40.31 Azimuth: 188.40

Sun: Altitude: 4.02 Azimuth: 276.73

Moon: Altitude: -60.17 Azimuth: 146.87

Tunka

Object: Altitude: 40.32 Azimuth: 182.42

Sun: Altitude: -11.17 Azimuth: 257.49

Moon: Altitude: -47.61 Azimuth: 115.40

Kislovodsk

Object: Altitude: 35.91 Azimuth: 168.82

Sun: Altitude: -45.95 Azimuth: 198.56

Moon: Altitude: -7.91 Azimuth: 64.64

Tavrida

Object: Altitude: 38.14 Azimuth: 167.23

Sun: Altitude: -46.30 Azimuth: 186.20

Moon: Altitude: -3.00 Azimuth: 59.05

SAAO

Object: Altitude: -35.04 Azimuth: 166.41

Sun: Altitude: -55.38 Azimuth: 15.85

Moon: Altitude: 40.31 Azimuth: 85.08

IAC

Object: Altitude: 31.74 Azimuth: 167.19

Sun: Altitude: -38.22 Azimuth: 113.20

Moon: Altitude: 34.97 Azimuth: 21.04

Argentina

Object: Altitude: -20.64 Azimuth: 176.43

Sun: Altitude: 8.33 Azimuth: 93.79

Moon: Altitude: 58.91 Azimuth: 263.51

Mexico

Object: Altitude: 41.49 Azimuth: 186.33

Sun: Altitude: 40.28 Azimuth: 57.17

Moon: Altitude: -0.34 Azimuth: 297.73

Ural

Object: Altitude: 47.01 Azimuth: 170.43

Sun: Altitude: -29.31 Azimuth: 214.74

Moon: Altitude: -22.25 Azimuth: 80.40

Vostryakovo

Object: Altitude: 47.92 Azimuth: 165.58

Sun: Altitude: -35.41 Azimuth: 189.92

Moon: Altitude: -10.31 Azimuth: 62.93

Gal. latitude: 33.659358 Gal. longitude: 111.637197

Dist. to Sun: 86.130154

Dist. to Moon: 106.099048

Moon coord.: (297.760886 d, -23.683280 d)

Sun coord.: (182.746735 d, -1.190587 d)

Lunar disk: 0.690434

Lunar phase: 67.612573

Lunar bright limb: 258.226401

No SN in this field

2020-09-25 22:51:21 (JD 2459118.452326)

Siderial time 1.711326 h

Ra 16:27:24.24 Dec 78:23:38.40
(246.851000d, 78.394000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 41.99 Azimuth: 191.73

Sun: Altitude: 13.34 Azimuth: 288.64

Moon: Altitude: -63.21 Azimuth: 174.28

Tunka

Object: Altitude: 41.03 Azimuth: 186.29

Sun: Altitude: -1.98 Azimuth: 269.44

Moon: Altitude: -54.95 Azimuth: 133.12

Kislovodsk

Object: Altitude: 34.07 Azimuth: 171.74

Sun: Altitude: -40.81 Azimuth: 218.01

Moon: Altitude: -17.63 Azimuth: 73.87

Tavrida

Object: Altitude: 36.01 Azimuth: 169.91

Sun: Altitude: -43.25 Azimuth: 206.96

Moon: Altitude: -12.17 Azimuth: 68.70

SAAO

Object: Altitude: -37.93 Azimuth: 167.51

Sun: Altitude: -55.92 Azimuth: 349.11

Moon: Altitude: 28.21 Azimuth: 78.56

IAC

Object: Altitude: 28.74 Azimuth: 166.79

Sun: Altitude: -49.69 Azimuth: 126.71

Moon: Altitude: 29.02 Azimuth: 35.01

Argentina

Object: Altitude: -21.78 Azimuth: 173.43

Sun: Altitude: -4.41 Azimuth: 85.83

Moon: Altitude: 70.84 Azimuth: 249.62

Mexico

Object: Altitude: 42.49 Azimuth: 182.50

Sun: Altitude: 28.81 Azimuth: 68.95

Moon: Altitude: 10.24 Azimuth: 305.73

Ural

Object: Altitude: 45.93 Azimuth: 174.53

Sun: Altitude: -23.80 Azimuth: 230.36

Moon: Altitude: -30.04 Azimuth: 92.34

Vostryakovo

Object: Altitude: 46.04 Azimuth: 169.04

Sun: Altitude: -32.67 Azimuth: 207.75

Moon: Altitude: -17.89 Azimuth: 74.13

Gal. latitude: 33.659358 Gal. longitude: 111.637197

Dist. to Sun: 86.139313

Dist. to Moon: 106.125967

Moon coord.: (298.343815 d, -23.622238 d)

Sun coord.: (182.784211 d, -1.206811 d)

Lunar disk: 0.694407

Lunar phase: 67.119242

Lunar bright limb: 257.973884

No SN in this field

2025-03-21 12:20:14 (JD 2460756.014051)

Siderial time 2.796609 h

Ra 16:27:24.24 Dec 78:23:38.40
(246.851000d, 78.394000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 44.39 Azimuth: 194.78

Sun: Altitude: -24.55 Azimuth: 124.05

Moon: Altitude: -44.43 Azimuth: 261.81

Tunka

Object: Altitude: 42.48 Azimuth: 190.21

Sun: Altitude: -9.97 Azimuth: 103.44

Moon: Altitude: -58.08 Azimuth: 233.75

Kislovodsk

Object: Altitude: 32.73 Azimuth: 175.31

Sun: Altitude: 30.29 Azimuth: 56.61

Moon: Altitude: -60.41 Azimuth: 110.94

Tavrida

Object: Altitude: 34.32 Azimuth: 173.32

Sun: Altitude: 34.50 Azimuth: 47.81

Moon: Altitude: -54.30 Azimuth: 103.63

SAAO

Object: Altitude: -40.65 Azimuth: 169.84

Sun: Altitude: 50.00 Azimuth: 139.97

Moon: Altitude: -11.00 Azimuth: 45.99

IAC

Object: Altitude: 25.51 Azimuth: 167.36

Sun: Altitude: 59.41 Azimuth: 333.99

Moon: Altitude: -12.49 Azimuth: 64.41

Argentina

Object: Altitude: -23.71 Azimuth: 170.58

Sun: Altitude: 20.28 Azimuth: 256.35

Moon: Altitude: 58.30 Azimuth: 86.73

Mexico

Object: Altitude: 42.56 Azimuth: 178.07

Sun: Altitude: -14.15 Azimuth: 260.89

Moon: Altitude: 30.51 Azimuth: 355.41

Ural

Object: Altitude: 45.44 Azimuth: 179.15

Sun: Altitude: 14.49 Azimuth: 67.15

Moon: Altitude: -59.46 Azimuth: 154.16

Vostryakovo

Object: Altitude: 44.61 Azimuth: 173.22

Sun: Altitude: 25.50 Azimuth: 47.14

Moon: Altitude: -52.48 Azimuth: 121.14

Gal. latitude: 33.659358 Gal. longitude: 111.637197

Dist. to Sun: 94.362437

Dist. to Moon: 106.890662

Moon coord.: (258.436242 d, -28.280657 d)

Sun coord.: (0.718168 d, 0.312032 d)

Lunar disk: 0.596166

Lunar phase: 78.911049

Lunar bright limb: 95.610634

No SN in this field
Recent coverage and limits telegrams

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

  ID = 3151
TYPE = 35
DAYS = 1


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 200925B ( S. B. Cenko et al., GCN 28499) errorbox  14 sec after notice time and 58 sec after trigger time at 2020-09-25 21:51:35 UT, with upper limit up to  20.2 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -47.0 deg. 

The galactic latitude b = 34 deg., longitude l = 112 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1449109

We obtain a following upper limits.  

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

      64 |      MASTER-Tavrida |   C |    10 | 17.1 |        
      84 |      MASTER-Tavrida |   C |    50 | 18.5 |  Coadd 
     434 |      MASTER-Tavrida |   C |   750 | 20.0 |  Coadd 
      99 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     139 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     185 |      MASTER-Tavrida |   C |    30 | 18.2 |        
     230 |      MASTER-Tavrida |   C |   120 | 19.2 |  Coadd 
     240 |      MASTER-Tavrida |   C |    40 | 18.4 |        
     305 |      MASTER-Tavrida |   C |    50 | 18.6 |        
     386 |      MASTER-Tavrida |   C |    70 | 18.8 |        
     486 |      MASTER-Tavrida |   C |   270 | 19.8 |  Coadd 
     486 |      MASTER-Tavrida |   C |    90 | 19.0 |        
     606 |      MASTER-Tavrida |   C |   110 | 19.1 |        
     752 |      MASTER-Tavrida |   C |   140 | 19.1 |        
     927 |      MASTER-Tavrida |   C |   490 | 19.8 |  Coadd 
     927 |      MASTER-Tavrida |   C |   170 | 19.3 |        
    1123 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1933 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    1324 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1504 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    1525 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1725 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    1926 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    2106 |      MASTER-Tavrida |   C |   540 | 19.9 |  Coadd 
    2126 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2327 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2528 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2708 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    2728 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    2929 |      MASTER-Tavrida |   C |   180 | 17.7 |        
    3130 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3310 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    3940 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    3330 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3531 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    3731 |      MASTER-Tavrida |   C |   180 | 19.0 |        
    3911 |      MASTER-Tavrida |   C |   540 | 19.7 |  Coadd 
    3932 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4133 |      MASTER-Tavrida |   C |   180 | 18.9 |        
    4333 |      MASTER-Tavrida |   C |   180 | 17.5 |        
    4513 |      MASTER-Tavrida |   C |   540 | 19.5 |  Coadd 
    4534 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    4735 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4935 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5115 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    5136 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    5337 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    5537 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    5717 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    5738 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5939 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    6139 |      MASTER-Tavrida |   C |   180 | 17.0 |        
    6319 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    6340 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    6540 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    6741 |      MASTER-Tavrida |   C |   180 | 17.3 |        
    6942 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    7142 |      MASTER-Tavrida |   C |   180 | 16.9 |        
    7343 |      MASTER-Tavrida |   C |   180 | 15.6 |        
    7590 |      MASTER-Tavrida |   C |   180 | 13.6 |        
    7791 |      MASTER-Tavrida |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3147
TYPE = 35
DAYS = 0.5


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 200925B ( S. B. Cenko et al., GCN 28499) errorbox  14 sec after notice time and 58 sec after trigger time at 2020-09-25 21:51:35 UT, with upper limit up to  20.2 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -47.0 deg. 

The galactic latitude b = 34 deg., longitude l = 112 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1449109

We obtain a following upper limits.  

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

      64 |      MASTER-Tavrida |   C |    10 | 17.1 |        
      84 |      MASTER-Tavrida |   C |    50 | 18.5 |  Coadd 
     434 |      MASTER-Tavrida |   C |   750 | 20.0 |  Coadd 
      99 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     139 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     185 |      MASTER-Tavrida |   C |    30 | 18.2 |        
     230 |      MASTER-Tavrida |   C |   120 | 19.2 |  Coadd 
     240 |      MASTER-Tavrida |   C |    40 | 18.4 |        
     305 |      MASTER-Tavrida |   C |    50 | 18.6 |        
     386 |      MASTER-Tavrida |   C |    70 | 18.8 |        
     486 |      MASTER-Tavrida |   C |   270 | 19.8 |  Coadd 
     486 |      MASTER-Tavrida |   C |    90 | 19.0 |        
     606 |      MASTER-Tavrida |   C |   110 | 19.1 |        
     752 |      MASTER-Tavrida |   C |   140 | 19.1 |        
     927 |      MASTER-Tavrida |   C |   490 | 19.8 |  Coadd 
     927 |      MASTER-Tavrida |   C |   170 | 19.3 |        
    1123 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1933 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    1324 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1504 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    1525 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1725 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    1926 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    2106 |      MASTER-Tavrida |   C |   540 | 19.9 |  Coadd 
    2126 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2327 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2528 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2708 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    2728 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    2929 |      MASTER-Tavrida |   C |   180 | 17.7 |        
    3130 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3310 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    3940 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    3330 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3531 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    3731 |      MASTER-Tavrida |   C |   180 | 19.0 |        
    3911 |      MASTER-Tavrida |   C |   540 | 19.7 |  Coadd 
    3932 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4133 |      MASTER-Tavrida |   C |   180 | 18.9 |        
    4333 |      MASTER-Tavrida |   C |   180 | 17.5 |        
    4513 |      MASTER-Tavrida |   C |   540 | 19.5 |  Coadd 
    4534 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    4735 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4935 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5115 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    5136 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    5337 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    5537 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    5717 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    5738 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5939 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    6139 |      MASTER-Tavrida |   C |   180 | 17.0 |        
    6319 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    6340 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    6540 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    6741 |      MASTER-Tavrida |   C |   180 | 17.3 |        
    6942 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    7142 |      MASTER-Tavrida |   C |   180 | 16.9 |        
    7343 |      MASTER-Tavrida |   C |   180 | 15.6 |        
    7590 |      MASTER-Tavrida |   C |   180 | 13.6 |        
    7791 |      MASTER-Tavrida |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3144
TYPE = 35
DAYS = 0.1


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 200925B ( S. B. Cenko et al., GCN 28499) errorbox  14 sec after notice time and 58 sec after trigger time at 2020-09-25 21:51:35 UT, with upper limit up to  20.2 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -47.0 deg. 

The galactic latitude b = 34 deg., longitude l = 112 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1449109

We obtain a following upper limits.  

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

      64 |      MASTER-Tavrida |   C |    10 | 17.1 |        
      84 |      MASTER-Tavrida |   C |    50 | 18.5 |  Coadd 
     434 |      MASTER-Tavrida |   C |   750 | 20.0 |  Coadd 
      99 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     139 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     185 |      MASTER-Tavrida |   C |    30 | 18.2 |        
     230 |      MASTER-Tavrida |   C |   120 | 19.2 |  Coadd 
     240 |      MASTER-Tavrida |   C |    40 | 18.4 |        
     305 |      MASTER-Tavrida |   C |    50 | 18.6 |        
     386 |      MASTER-Tavrida |   C |    70 | 18.8 |        
     486 |      MASTER-Tavrida |   C |   270 | 19.8 |  Coadd 
     486 |      MASTER-Tavrida |   C |    90 | 19.0 |        
     606 |      MASTER-Tavrida |   C |   110 | 19.1 |        
     752 |      MASTER-Tavrida |   C |   140 | 19.1 |        
     927 |      MASTER-Tavrida |   C |   490 | 19.8 |  Coadd 
     927 |      MASTER-Tavrida |   C |   170 | 19.3 |        
    1123 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1933 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    1324 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1504 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    1525 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    1725 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    1926 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    2106 |      MASTER-Tavrida |   C |   540 | 19.9 |  Coadd 
    2126 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2327 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2528 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    2708 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    2728 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    2929 |      MASTER-Tavrida |   C |   180 | 17.7 |        
    3130 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3310 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    3940 |      MASTER-Tavrida |   C |  1800 | 20.2 |  Coadd 
    3330 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    3531 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    3731 |      MASTER-Tavrida |   C |   180 | 19.0 |        
    3911 |      MASTER-Tavrida |   C |   540 | 19.7 |  Coadd 
    3932 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4133 |      MASTER-Tavrida |   C |   180 | 18.9 |        
    4333 |      MASTER-Tavrida |   C |   180 | 17.5 |        
    4513 |      MASTER-Tavrida |   C |   540 | 19.5 |  Coadd 
    4534 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    4735 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    4935 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5115 |      MASTER-Tavrida |   C |   540 | 19.8 |  Coadd 
    5136 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    5337 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    5537 |      MASTER-Tavrida |   C |   180 | 17.9 |        
    5717 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    5738 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    5939 |      MASTER-Tavrida |   C |   180 | 19.3 |        
    6139 |      MASTER-Tavrida |   C |   180 | 17.0 |        
    6319 |      MASTER-Tavrida |   C |   540 | 19.6 |  Coadd 
    6340 |      MASTER-Tavrida |   C |   180 | 19.2 |        
    6540 |      MASTER-Tavrida |   C |   180 | 19.5 |        
    6741 |      MASTER-Tavrida |   C |   180 | 17.3 |        
    6942 |      MASTER-Tavrida |   C |   180 | 19.4 |        
    7142 |      MASTER-Tavrida |   C |   180 | 16.9 |        
    7343 |      MASTER-Tavrida |   C |   180 | 15.6 |        
    7590 |      MASTER-Tavrida |   C |   180 | 13.6 |        
    7791 |      MASTER-Tavrida |   C |   180 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3143
TYPE = 34
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB200925.91 (trigger No 997453,16h 27m 24.24s , +78d 23m 38.4s, R=0.05) errorbox  14 sec after notice time and 58 sec after trigger time at 2020-09-25 21:51:35 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -47.0 deg. 

The galactic latitude b = 34 deg., longitude l = 112 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1449109

We obtain a following upper limits.  

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

      64 |      MASTER-Tavrida |   C |    10 | 17.1 |        
      99 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     139 |      MASTER-Tavrida |   C |    20 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3142
TYPE = 35
DAYS = 0


MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB200925.91 (trigger No 997453,16h 27m 24.24s , +78d 23m 38.4s, R=0.05) errorbox  14 sec after notice time and 58 sec after trigger time at 2020-09-25 21:51:35 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 53 deg. The sun  altitude  is -47.0 deg. 

The galactic latitude b = 34 deg., longitude l = 112 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1449109

We obtain a following upper limits.  

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

      64 |      MASTER-Tavrida |   C |    10 | 17.1 |        
      99 |      MASTER-Tavrida |   C |    20 | 17.9 |        
     139 |      MASTER-Tavrida |   C |    20 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2025