MASTER Net MASTER Database: GRB210202.54 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 FERMI GRB210202.54
Trignum 633963272
Trigger time 2021-02-02 12:54:27
Notice time 2021-02-02 12:55:23.501101
Coord, eb (19h 48m 14.40s , +18d 44m 24.0s) , 2.8
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
1538398 2021-02-02 12:55:23.501101 19h 48m 14.40s +18d 44m 24.0s FERMI 2.8 alert 633963272 24 112 alert
1538391 2021-02-02 12:55:15.123474 19h 42m 52.08s +25d 01m 01.2s FERMI 6.07 alert 633963272 38 111 alert

DAYS:

MASTER optical transients in this field
MASTER OT (J2000.0) Сoordinates Datetime Published Mag Site Image
J194615.23+215611.8 (19h 46m 15.23s , +21d 56m 11.8s) 2021-02-03 02:44:59.712 AT2021bro on 2021-02-04 08:00:05.777671 16.693 Tavrida Transient on Tavrida

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

2021-02-02 12:54:27 (JD 2459248.037812)

Siderial time 0.278033 h

Ra 19:48:14.40 Dec 18:44:24.00
(297.060000d, 18.740000d)

Rise 2021-02-03 03:19:39

Transit 2021-02-03 11:22:48

Set 2021-02-03 19:25:57

Amur

Object: Altitude: -18.01 Azimuth: 157.08

Sun: Altitude: -42.52 Azimuth: 119.54

Moon: Altitude: -8.43 Azimuth: 262.28

Tunka

Object: Altitude: -8.25 Azimuth: 135.18

Sun: Altitude: -27.57 Azimuth: 97.95

Moon: Altitude: -22.50 Azimuth: 241.47

Kislovodsk

Object: Altitude: 25.68 Azimuth: 91.90

Sun: Altitude: 12.54 Azimuth: 51.58

Moon: Altitude: -47.49 Azimuth: 170.73

Tavrida

Object: Altitude: 31.75 Azimuth: 85.34

Sun: Altitude: 16.41 Azimuth: 44.40

Moon: Altitude: -44.94 Azimuth: 158.91

SAAO

Object: Altitude: 19.80 Azimuth: 129.25

Sun: Altitude: 57.71 Azimuth: 111.41

Moon: Altitude: -46.94 Azimuth: 43.36

IAC

Object: Altitude: 74.75 Azimuth: 53.99

Sun: Altitude: 44.58 Azimuth: 351.88

Moon: Altitude: -22.41 Azimuth: 100.82

Argentina

Object: Altitude: 26.66 Azimuth: 222.75

Sun: Altitude: 34.95 Azimuth: 268.87

Moon: Altitude: 24.52 Azimuth: 104.28

Mexico

Object: Altitude: 17.11 Azimuth: 258.05

Sun: Altitude: -16.84 Azimuth: 279.73

Moon: Altitude: 51.80 Azimuth: 35.10

Ural

Object: Altitude: 16.16 Azimuth: 99.67

Sun: Altitude: -3.65 Azimuth: 64.39

Moon: Altitude: -33.90 Azimuth: 193.00

Vostryakovo

Object: Altitude: 28.16 Azimuth: 82.29

Sun: Altitude: 7.18 Azimuth: 46.09

Moon: Altitude: -35.49 Azimuth: 166.49

Gal. latitude: -3.844986 Gal. longitude: 56.423512

Dist. to Sun: 40.110409

Dist. to Moon: 101.621331

Moon coord.: (195.329805 d, -1.603939 d)

Sun coord.: (316.075968 d, -16.742509 d)

Lunar disk: 0.741657

Lunar phase: 61.097988

Lunar bright limb: 110.129850

No SN in this field

2021-02-02 12:55:23 (JD 2459248.038461)

Siderial time 0.293631 h

Ra 19:48:14.40 Dec 18:44:24.00
(297.060000d, 18.740000d)

Rise 2021-02-03 03:19:39

Transit 2021-02-03 11:22:48

Set 2021-02-03 19:25:57

Amur

Object: Altitude: -18.07 Azimuth: 157.30

Sun: Altitude: -42.65 Azimuth: 119.79

Moon: Altitude: -8.29 Azimuth: 262.46

Tunka

Object: Altitude: -8.35 Azimuth: 135.38

Sun: Altitude: -27.72 Azimuth: 98.14

Moon: Altitude: -22.38 Azimuth: 241.68

Kislovodsk

Object: Altitude: 25.51 Azimuth: 92.06

Sun: Altitude: 12.41 Azimuth: 51.76

Moon: Altitude: -47.52 Azimuth: 171.06

Tavrida

Object: Altitude: 31.58 Azimuth: 85.52

Sun: Altitude: 16.30 Azimuth: 44.60

Moon: Altitude: -45.00 Azimuth: 159.22

SAAO

Object: Altitude: 19.65 Azimuth: 129.08

Sun: Altitude: 57.53 Azimuth: 111.17

Moon: Altitude: -47.06 Azimuth: 43.08

IAC

Object: Altitude: 74.59 Azimuth: 54.54

Sun: Altitude: 44.61 Azimuth: 352.19

Moon: Altitude: -22.61 Azimuth: 100.93

Argentina

Object: Altitude: 26.80 Azimuth: 222.55

Sun: Altitude: 35.14 Azimuth: 268.74

Moon: Altitude: 24.33 Azimuth: 104.13

Mexico

Object: Altitude: 17.30 Azimuth: 258.16

Sun: Altitude: -16.65 Azimuth: 279.84

Moon: Altitude: 51.69 Azimuth: 35.42

Ural

Object: Altitude: 16.03 Azimuth: 99.86

Sun: Altitude: -3.76 Azimuth: 64.59

Moon: Altitude: -33.88 Azimuth: 193.27

Vostryakovo

Object: Altitude: 28.03 Azimuth: 82.50

Sun: Altitude: 7.08 Azimuth: 46.30

Moon: Altitude: -35.52 Azimuth: 166.77

Gal. latitude: -3.844986 Gal. longitude: 56.423512

Dist. to Sun: 40.110545

Dist. to Moon: 101.614707

Moon coord.: (195.338121 d, -1.607803 d)

Sun coord.: (316.076626 d, -16.742320 d)

Lunar disk: 0.741592

Lunar phase: 61.106458

Lunar bright limb: 110.129971

No SN in this field

2021-02-02 13:55:23 (JD 2459248.080127)

Siderial time 1.296369 h

Ra 19:48:14.40 Dec 18:44:24.00
(297.060000d, 18.740000d)

Rise 2021-02-03 03:19:39

Transit 2021-02-03 11:22:48

Set 2021-02-03 19:25:57

Amur

Object: Altitude: -20.60 Azimuth: 172.16

Sun: Altitude: -50.11 Azimuth: 137.66

Moon: Altitude: 0.76 Azimuth: 273.83

Tunka

Object: Altitude: -14.07 Azimuth: 148.68

Sun: Altitude: -36.66 Azimuth: 111.45

Moon: Altitude: -14.28 Azimuth: 254.36

Kislovodsk

Object: Altitude: 14.74 Azimuth: 102.00

Sun: Altitude: 3.30 Azimuth: 62.98

Moon: Altitude: -47.44 Azimuth: 192.58

Tavrida

Object: Altitude: 20.91 Azimuth: 96.06

Sun: Altitude: 8.07 Azimuth: 56.65

Moon: Altitude: -47.13 Azimuth: 179.96

SAAO

Object: Altitude: 9.13 Azimuth: 119.15

Sun: Altitude: 45.29 Azimuth: 98.98

Moon: Altitude: -53.54 Azimuth: 22.65

IAC

Object: Altitude: 62.47 Azimuth: 75.90

Sun: Altitude: 44.10 Azimuth: 12.31

Moon: Altitude: -35.06 Azimuth: 109.45

Argentina

Object: Altitude: 34.24 Azimuth: 208.43

Sun: Altitude: 47.81 Azimuth: 259.64

Moon: Altitude: 12.33 Azimuth: 95.54

Mexico

Object: Altitude: 30.04 Azimuth: 265.12

Sun: Altitude: -4.15 Azimuth: 287.05

Moon: Altitude: 42.83 Azimuth: 52.44

Ural

Object: Altitude: 8.18 Azimuth: 112.02

Sun: Altitude: -11.44 Azimuth: 76.84

Moon: Altitude: -31.20 Azimuth: 210.20

Vostryakovo

Object: Altitude: 19.51 Azimuth: 94.98

Sun: Altitude: 0.33 Azimuth: 59.00

Moon: Altitude: -36.39 Azimuth: 184.68

Gal. latitude: -3.844986 Gal. longitude: 56.423512

Dist. to Sun: 40.119325

Dist. to Moon: 101.188596

Moon coord.: (195.872810 d, -1.856113 d)

Sun coord.: (316.118911 d, -16.730204 d)

Lunar disk: 0.737421

Lunar phase: 61.650975

Lunar bright limb: 110.136231

No SN in this field

2024-07-05 11:27:59 (JD 2460496.977766)

Siderial time 8.904547 h

Ra 19:48:14.40 Dec 18:44:24.00
(297.060000d, 18.740000d)

Rise 2024-07-05 17:17:00

Transit 2024-07-06 01:20:09

Set 2024-07-05 09:27:15

Amur

Object: Altitude: 24.69 Azimuth: 270.02

Sun: Altitude: 0.87 Azimuth: 125.98

Moon: Altitude: 2.50 Azimuth: 133.50

Tunka

Object: Altitude: 9.82 Azimuth: 252.10

Sun: Altitude: 15.17 Azimuth: 107.66

Moon: Altitude: 15.93 Azimuth: 115.61

Kislovodsk

Object: Altitude: -24.50 Azimuth: 202.33

Sun: Altitude: 55.25 Azimuth: 63.87

Moon: Altitude: 54.74 Azimuth: 77.26

Tavrida

Object: Altitude: -25.45 Azimuth: 193.55

Sun: Altitude: 59.88 Azimuth: 51.49

Moon: Altitude: 60.24 Azimuth: 66.91

SAAO

Object: Altitude: -76.36 Azimuth: 1.20

Sun: Altitude: 33.69 Azimuth: 166.68

Moon: Altitude: 27.05 Azimuth: 162.19

IAC

Object: Altitude: -30.54 Azimuth: 137.84

Sun: Altitude: 66.53 Azimuth: 277.89

Moon: Altitude: 73.00 Azimuth: 265.71

Argentina

Object: Altitude: -9.39 Azimuth: 106.30

Sun: Altitude: -2.45 Azimuth: 244.60

Moon: Altitude: -1.10 Azimuth: 237.03

Mexico

Object: Altitude: 44.69 Azimuth: 86.10

Sun: Altitude: -10.72 Azimuth: 235.01

Moon: Altitude: -3.07 Azimuth: 234.22

Ural

Object: Altitude: -7.71 Azimuth: 216.44

Sun: Altitude: 39.95 Azimuth: 68.63

Moon: Altitude: 41.26 Azimuth: 78.61

Vostryakovo

Object: Altitude: -14.53 Azimuth: 196.33

Sun: Altitude: 50.94 Azimuth: 45.19

Moon: Altitude: 53.04 Azimuth: 57.22

Gal. latitude: -3.844986 Gal. longitude: 56.423512

Dist. to Sun: 136.804264

Dist. to Moon: 129.827721

Moon coord.: (98.754882 d, 28.204087 d)

Sun coord.: (104.766060 d, 22.752198 d)

Lunar disk: 0.004522

Lunar phase: 172.288749

Lunar bright limb: 133.168154

No SN in this field
Recent coverage and limits telegrams

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

  ID = 3709
TYPE = 35
DAYS = 2


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) started inspect of the FERMI GRB210202.54 (trigger No 633963272,19h 48m 14.40s , +18d 44m 24.0s, R=2.8) errorbox  49098 sec after notice time and 49134 sec after trigger time at 2021-02-03 02:33:21 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 74 deg. The sun  altitude  is -26.3 deg. 

The galactic latitude b = -4 deg., longitude l = 56 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1538398

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   47687 | 2021-02-03 02:08:43 |             MASTER- | (19h 41m 12.07s , +16d 04m 04.1s) |   C |    60 | 12.4 |        
   48180 | 2021-02-03 02:16:56 |             MASTER- | (19h 50m 09.48s , +22d 04m 08.9s) |   C |    60 | 13.7 |        
   49164 | 2021-02-03 02:33:21 |      MASTER-Tavrida | (19h 28m 57.40s , +20d 08m 19.5s) |   C |    60 | 15.7 |        
   49783 | 2021-02-03 02:43:40 |      MASTER-Tavrida | (19h 31m 45.87s , +18d 08m 08.7s) |   C |    60 | 16.1 |        
   49863 | 2021-02-03 02:44:59 |      MASTER-Tavrida | (19h 44m 52.32s , +22d 06m 49.2s) |   C |    60 | 17.0 |        
   50325 | 2021-02-03 02:52:41 |      MASTER-Tavrida | (19h 28m 59.20s , +20d 07m 11.8s) |   C |    60 | 16.7 |        
   50881 | 2021-02-03 03:01:58 |      MASTER-Tavrida | (19h 44m 47.32s , +22d 07m 52.1s) |   C |    60 | 16.2 |        
   50961 | 2021-02-03 03:03:18 |      MASTER-Tavrida | (19h 46m 00.87s , +20d 06m 15.4s) |   C |    60 | 16.1 |        
   51549 | 2021-02-03 03:13:06 |      MASTER-Tavrida | (19h 28m 58.81s , +20d 07m 01.9s) |   C |    60 | 16.5 |        
   51628 | 2021-02-03 03:14:25 |      MASTER-Tavrida | (19h 33m 51.38s , +22d 06m 27.9s) |   C |    60 | 13.6 |        
   51708 | 2021-02-03 03:15:45 |      MASTER-Tavrida | (19h 35m 56.97s , +16d 06m 32.9s) |   C |    60 | 16.6 |        
   51788 | 2021-02-03 03:17:04 |      MASTER-Tavrida | (19h 52m 40.41s , +16d 07m 18.9s) |   C |    60 | 16.4 |        
   52186 | 2021-02-03 03:23:42 |      MASTER-Tavrida | (19h 31m 49.21s , +18d 07m 15.3s) |   C |    60 | 17.3 |        
   52265 | 2021-02-03 03:25:02 |      MASTER-Tavrida | (19h 44m 44.65s , +22d 08m 04.1s) |   C |    60 | 17.4 |        
   52344 | 2021-02-03 03:26:21 |      MASTER-Tavrida | (19h 45m 58.28s , +20d 06m 23.9s) |   C |    60 | 16.9 |        
   52424 | 2021-02-03 03:27:40 |      MASTER-Tavrida | (19h 48m 38.18s , +18d 07m 55.2s) |   C |    60 | 16.4 |        
  136507 | 2021-02-04 02:49:04 |      MASTER-Tavrida | (19h 31m 53.23s , +18d 08m 06.2s) |   C |    60 | 17.4 |        
  136587 | 2021-02-04 02:50:23 |      MASTER-Tavrida | (19h 44m 45.63s , +22d 06m 56.5s) |   C |    60 | 15.8 |        
  136666 | 2021-02-04 02:51:43 |      MASTER-Tavrida | (19h 28m 57.60s , +20d 08m 37.1s) |   C |    60 | 17.2 |        
  136825 | 2021-02-04 02:54:21 |      MASTER-Tavrida | (20h 03m 01.45s , +20d 04m 57.6s) |   C |    60 | 17.0 |        
  137128 | 2021-02-04 02:59:25 |      MASTER-Tavrida | (20h 02m 00.94s , +22d 07m 18.9s) |   C |    60 | 17.1 |        
  137208 | 2021-02-04 03:00:45 |      MASTER-Tavrida | (20h 05m 32.39s , +18d 05m 49.2s) |   C |    60 | 17.1 |        
  138321 | 2021-02-04 03:19:18 |      MASTER-Tavrida | (19h 31m 45.34s , +18d 07m 53.2s) |   C |    60 | 17.9 |        
  138400 | 2021-02-04 03:20:37 |      MASTER-Tavrida | (19h 44m 44.57s , +22d 08m 25.3s) |   C |    60 | 17.7 |        
  138480 | 2021-02-04 03:21:56 |      MASTER-Tavrida | (19h 28m 59.77s , +20d 08m 06.3s) |   C |    60 | 17.8 |        
  138480 | 2021-02-04 03:21:56 |      MASTER-Tavrida | (19h 35m 14.65s , +20d 05m 46.8s) |   C |    60 | 14.9 |        
  138559 | 2021-02-04 03:23:16 |      MASTER-Tavrida | (19h 33m 47.41s , +22d 04m 53.1s) |   C |    60 | 17.1 |        
  138781 | 2021-02-04 03:26:58 |      MASTER-Tavrida | (20h 02m 58.17s , +20d 07m 30.9s) |   C |    60 | 17.3 |        
  138941 | 2021-02-04 03:29:37 |      MASTER-Tavrida | (20h 01m 57.01s , +22d 05m 41.7s) |   C |    60 | 17.1 |        
  139020 | 2021-02-04 03:30:57 |      MASTER-Tavrida | (20h 05m 29.45s , +18d 05m 47.6s) |   C |    60 | 17.1 |        
  140173 | 2021-02-04 03:50:10 |      MASTER-Tavrida | (19h 31m 40.42s , +18d 09m 08.5s) |   C |    60 | 17.2 |        
  140173 | 2021-02-04 03:50:10 |      MASTER-Tavrida | (19h 37m 53.29s , +18d 07m 04.0s) |   C |    60 | 16.1 |        
  140253 | 2021-02-04 03:51:29 |      MASTER-Tavrida | (19h 44m 45.60s , +22d 07m 37.1s) |   C |    60 | 17.0 |        
  140253 | 2021-02-04 03:51:29 |      MASTER-Tavrida | (19h 51m 08.10s , +22d 05m 33.1s) |   C |    60 | 16.1 |        
  140332 | 2021-02-04 03:52:48 |      MASTER-Tavrida | (19h 28m 51.46s , +20d 07m 18.8s) |   C |    60 | 17.1 |        
  140332 | 2021-02-04 03:52:48 |      MASTER-Tavrida | (19h 35m 09.00s , +20d 05m 14.6s) |   C |    60 | 16.9 |        
  140411 | 2021-02-04 03:54:08 |      MASTER-Tavrida | (19h 33m 51.74s , +22d 05m 45.4s) |   C |    60 | 17.1 |        
  140490 | 2021-02-04 03:55:27 |      MASTER-Tavrida | (20h 02m 59.29s , +20d 07m 47.4s) |   C |    60 | 16.5 |        
  140649 | 2021-02-04 03:58:05 |      MASTER-Tavrida | (20h 02m 01.18s , +22d 07m 50.8s) |   C |    60 | 16.4 |        
  140728 | 2021-02-04 03:59:25 |      MASTER-Tavrida | (20h 05m 21.52s , +18d 06m 48.1s) |   C |    60 | 16.3 |        
  140887 | 2021-02-04 04:02:04 |      MASTER-Tavrida | (19h 45m 58.99s , +20d 07m 43.2s) |   C |    60 | 16.1 |        
  140887 | 2021-02-04 04:02:04 |      MASTER-Tavrida | (19h 52m 16.30s , +20d 05m 39.2s) |   C |    60 | 15.6 |        
  140967 | 2021-02-04 04:03:23 |      MASTER-Tavrida | (19h 48m 31.15s , +18d 06m 37.0s) |   C |    60 | 15.6 |        
  140967 | 2021-02-04 04:03:23 |      MASTER-Tavrida | (19h 54m 43.72s , +18d 04m 32.7s) |   C |    60 | 15.2 |        
  141046 | 2021-02-04 04:04:43 |      MASTER-Tavrida | (19h 35m 57.25s , +16d 07m 39.2s) |   C |    60 | 16.1 |        
  141046 | 2021-02-04 04:04:43 |      MASTER-Tavrida | (19h 42m 05.99s , +16d 05m 34.5s) |   C |    60 | 15.5 |        
  141127 | 2021-02-04 04:06:03 |      MASTER-Tavrida | (19h 52m 33.82s , +16d 08m 24.3s) |   C |    60 | 15.8 |        
  141127 | 2021-02-04 04:06:03 |      MASTER-Tavrida | (19h 58m 42.30s , +16d 06m 20.5s) |   C |    60 | 14.8 |        
  141406 | 2021-02-04 04:10:42 |      MASTER-Tavrida | (19h 47m 33.20s , +14d 06m 45.5s) |   C |    60 | 14.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3702
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) started inspect of the FERMI GRB210202.54 (trigger No 633963272,19h 48m 14.40s , +18d 44m 24.0s, R=2.8) errorbox  49098 sec after notice time and 49134 sec after trigger time at 2021-02-03 02:33:21 UT, with upper limit up to  15.7 mag. The observations began at zenith distance = 74 deg. The sun  altitude  is -26.3 deg. 

The galactic latitude b = -4 deg., longitude l = 56 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1538398

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   47687 | 2021-02-03 02:08:43 |             MASTER- | (19h 41m 12.07s , +16d 04m 04.1s) |   C |    60 | 12.4 |        
   48180 | 2021-02-03 02:16:56 |             MASTER- | (19h 50m 09.48s , +22d 04m 08.9s) |   C |    60 | 13.7 |        
   49164 | 2021-02-03 02:33:21 |      MASTER-Tavrida | (19h 28m 57.40s , +20d 08m 19.5s) |   C |    60 | 15.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 3701
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) started inspect of the FERMI GRB210202.54 (trigger No 633963272,19h 48m 14.40s , +18d 44m 24.0s, R=2.8) errorbox  49098 sec after notice time and 49134 sec after trigger time at 2021-02-03 02:33:21 UT, with upper limit up to  15.7 mag. The observations began at zenith distance = 74 deg. The sun  altitude  is -26.3 deg. 

The galactic latitude b = -4 deg., longitude l = 56 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1538398

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   47687 | 2021-02-03 02:08:43 |             MASTER- | (19h 41m 12.07s , +16d 04m 04.1s) |   C |    60 | 12.4 |        
   48180 | 2021-02-03 02:16:56 |             MASTER- | (19h 50m 09.48s , +22d 04m 08.9s) |   C |    60 | 13.7 |        
   49164 | 2021-02-03 02:33:21 |      MASTER-Tavrida | (19h 28m 57.40s , +20d 08m 19.5s) |   C |    60 | 15.7 |        
Filter C is a clear (unfiltred) band. 


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



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  ID = 3700
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) started inspect of the FERMI GRB210202.54 (trigger No 633963272,19h 48m 14.40s , +18d 44m 24.0s, R=2.8) errorbox  49098 sec after notice time and 49134 sec after trigger time at 2021-02-03 02:33:21 UT, with upper limit up to  15.7 mag. The observations began at zenith distance = 74 deg. The sun  altitude  is -26.3 deg. 

The galactic latitude b = -4 deg., longitude l = 56 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1538398

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   47687 | 2021-02-03 02:08:43 |             MASTER- | (19h 41m 12.07s , +16d 04m 04.1s) |   C |    60 | 12.4 |        
   48180 | 2021-02-03 02:16:56 |             MASTER- | (19h 50m 09.48s , +22d 04m 08.9s) |   C |    60 | 13.7 |        
   49164 | 2021-02-03 02:33:21 |      MASTER-Tavrida | (19h 28m 57.40s , +20d 08m 19.5s) |   C |    60 | 15.7 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024