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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 FERMI GRB230209.98
Type 2
Trigger time 2023-02-09 23:35:37.44
Notice time(last) 2023-02-09 23:36:27.766572
Distance ± Mpc
FromSocket to be BNS BBH NSBH Gap Terr
Galaxy in: 50%
90%
FULL

This work was supported by RFBR BRICS 17-52-80133 grant.
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)

DAYS:
Coverage since triggertime up to

ALL PLOTS
datetime T - Trig [h] T - Not [h] Area [sq. deg]
Box 50% 90% FULL
[%] 60.3 37.6 34.3
2023-02-23 23:35:37 336.0 336.0 181.8

Discoveries in this field
No discoveries yet!
Errorbox center visibility at MASTER facilities
SELECT set_sphere_output('HMS'); select set_sphere_output_precision(1); select distinct on (gn) get_grb_name2 (grbtime, satel ) as gn, coord2000, satel, errorbox, 'now'::timestamp,'now'::timestamp+'1 hour'::interval,grbtime+'1 hour'::interval from grb where tabs(grbtime-'2023-02-09 23:35:37.44')<'10 minutes'::interval order by gn,seq desc,errorbox asc;
trigger notice notice+1hr now

2023-02-09 23:35:37 (JD 2459985.483067)

Siderial time 11.421542 h

Ra 04:10:00.00 Dec -59:34:01.20
( 62.500000d, -59.567000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -75.92 Azimuth: 318.16

Sun: Altitude: 5.59 Azimuth: 301.00

Moon: Altitude: 9.94 Azimuth: 76.82

Tunka

Object: Altitude: -81.60 Azimuth: 20.26

Sun: Altitude: -9.17 Azimuth: 282.03

Moon: Altitude: 23.34 Azimuth: 55.45

Kislovodsk

Object: Altitude: -48.03 Azimuth: 43.90

Sun: Altitude: -49.41 Azimuth: 234.53

Moon: Altitude: 44.49 Azimuth: 343.90

Tavrida

Object: Altitude: -44.53 Azimuth: 43.28

Sun: Altitude: -53.34 Azimuth: 222.62

Moon: Altitude: 41.34 Azimuth: 333.02

SAAO

Object: Altitude: 26.53 Azimuth: 34.46

Sun: Altitude: -41.73 Azimuth: 345.03

Moon: Altitude: 45.47 Azimuth: 231.18

IAC

Object: Altitude: -8.69 Azimuth: 24.72

Sun: Altitude: -62.44 Azimuth: 114.33

Moon: Altitude: 16.84 Azimuth: 280.11

Argentina

Object: Altitude: 62.21 Azimuth: 2.04

Sun: Altitude: -1.65 Azimuth: 71.64

Moon: Altitude: -27.42 Azimuth: 289.61

Mexico

Object: Altitude: -6.22 Azimuth: 341.22

Sun: Altitude: 16.30 Azimuth: 61.12

Moon: Altitude: -56.12 Azimuth: 209.00

Ural

Object: Altitude: -64.60 Azimuth: 63.45

Sun: Altitude: -33.27 Azimuth: 242.80

Moon: Altitude: 32.18 Azimuth: 6.63

Vostryakovo

Object: Altitude: -53.45 Azimuth: 53.53

Sun: Altitude: -43.70 Azimuth: 219.67

Moon: Altitude: 32.48 Azimuth: 340.78

Gal. latitude: -43.184798 Gal. longitude: 270.716856

Dist. to Sun: 82.128668

Dist. to Moon: 106.405172

Moon coord.: (187.638372 d, -0.604113 d)

Sun coord.: (323.026549 d, -14.619238 d)

Lunar disk: 0.843705

Lunar phase: 46.574530

Lunar bright limb: 110.910564

No SN in this field

2023-02-09 23:36:27 (JD 2459985.483646)

Siderial time 11.435469 h

Ra 04:10:00.00 Dec -59:34:01.20
( 62.500000d, -59.567000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -75.83 Azimuth: 317.93

Sun: Altitude: 5.70 Azimuth: 301.17

Moon: Altitude: 9.82 Azimuth: 76.97

Tunka

Object: Altitude: -81.65 Azimuth: 19.60

Sun: Altitude: -9.04 Azimuth: 282.19

Moon: Altitude: 23.24 Azimuth: 55.63

Kislovodsk

Object: Altitude: -48.13 Azimuth: 43.92

Sun: Altitude: -49.29 Azimuth: 234.78

Moon: Altitude: 44.53 Azimuth: 344.18

Tavrida

Object: Altitude: -44.63 Azimuth: 43.32

Sun: Altitude: -53.24 Azimuth: 222.91

Moon: Altitude: 41.40 Azimuth: 333.28

SAAO

Object: Altitude: 26.43 Azimuth: 34.42

Sun: Altitude: -41.69 Azimuth: 344.77

Moon: Altitude: 45.61 Azimuth: 230.97

IAC

Object: Altitude: -8.76 Azimuth: 24.79

Sun: Altitude: -62.60 Azimuth: 114.58

Moon: Altitude: 17.01 Azimuth: 280.22

Argentina

Object: Altitude: 62.20 Azimuth: 2.27

Sun: Altitude: -1.82 Azimuth: 71.53

Moon: Altitude: -27.26 Azimuth: 289.48

Mexico

Object: Altitude: -6.16 Azimuth: 341.31

Sun: Altitude: 16.14 Azimuth: 61.25

Moon: Altitude: -56.04 Azimuth: 209.33

Ural

Object: Altitude: -64.70 Azimuth: 63.52

Sun: Altitude: -33.17 Azimuth: 243.01

Moon: Altitude: 32.17 Azimuth: 6.87

Vostryakovo

Object: Altitude: -53.54 Azimuth: 53.60

Sun: Altitude: -43.62 Azimuth: 219.93

Moon: Altitude: 32.52 Azimuth: 341.02

Gal. latitude: -43.184798 Gal. longitude: 270.716856

Dist. to Sun: 82.128549

Dist. to Moon: 106.404917

Moon coord.: (187.644709 d, -0.607429 d)

Sun coord.: (323.027123 d, -14.619052 d)

Lunar disk: 0.843664

Lunar phase: 46.581038

Lunar bright limb: 110.911238

No SN in this field

2023-02-10 00:36:27 (JD 2459985.525313)

Siderial time 12.438207 h

Ra 04:10:00.00 Dec -59:34:01.20
( 62.500000d, -59.567000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -68.73 Azimuth: 308.77

Sun: Altitude: 13.31 Azimuth: 313.71

Moon: Altitude: 0.41 Azimuth: 88.18

Tunka

Object: Altitude: -80.59 Azimuth: 329.18

Sun: Altitude: -0.22 Azimuth: 293.76

Moon: Altitude: 15.08 Azimuth: 68.45

Kislovodsk

Object: Altitude: -55.73 Azimuth: 44.37

Sun: Altitude: -39.67 Azimuth: 250.10

Moon: Altitude: 45.31 Azimuth: 4.80

Tavrida

Object: Altitude: -52.12 Azimuth: 45.32

Sun: Altitude: -44.82 Azimuth: 241.06

Moon: Altitude: 44.20 Azimuth: 352.84

SAAO

Object: Altitude: 19.56 Azimuth: 30.89

Sun: Altitude: -36.52 Azimuth: 327.25

Moon: Altitude: 54.04 Azimuth: 212.39

IAC

Object: Altitude: -14.82 Azimuth: 29.48

Sun: Altitude: -73.13 Azimuth: 142.07

Moon: Altitude: 29.32 Azimuth: 288.76

Argentina

Object: Altitude: 59.97 Azimuth: 17.34

Sun: Altitude: -13.58 Azimuth: 62.93

Moon: Altitude: -15.16 Azimuth: 280.72

Mexico

Object: Altitude: -2.76 Azimuth: 348.13

Sun: Altitude: 4.44 Azimuth: 70.00

Moon: Altitude: -48.24 Azimuth: 229.58

Ural

Object: Altitude: -72.16 Azimuth: 67.59

Sun: Altitude: -25.50 Azimuth: 257.17

Moon: Altitude: 29.84 Azimuth: 23.69

Vostryakovo

Object: Altitude: -60.64 Azimuth: 58.64

Sun: Altitude: -37.23 Azimuth: 237.10

Moon: Altitude: 33.76 Azimuth: 358.39

Gal. latitude: -43.184798 Gal. longitude: 270.716856

Dist. to Sun: 82.119962

Dist. to Moon: 106.385878

Moon coord.: (188.101116 d, -0.846214 d)

Sun coord.: (323.068432 d, -14.605645 d)

Lunar disk: 0.840682

Lunar phase: 47.049739

Lunar bright limb: 110.958156

No SN in this field

2024-04-26 16:14:01 (JD 2460427.176400)

Siderial time 9.085134 h

Ra 04:10:00.00 Dec -59:34:01.20
( 62.500000d, -59.567000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: -76.88 Azimuth: 38.95

Sun: Altitude: -25.12 Azimuth: 192.78

Moon: Altitude: 12.27 Azimuth: 342.83

Tunka

Object: Altitude: -66.18 Azimuth: 55.00

Sun: Altitude: -23.58 Azimuth: 166.71

Moon: Altitude: 3.86 Azimuth: 321.89

Kislovodsk

Object: Altitude: -31.63 Azimuth: 35.68

Sun: Altitude: -2.32 Azimuth: 111.55

Moon: Altitude: -26.90 Azimuth: 280.71

Tavrida

Object: Altitude: -29.00 Azimuth: 33.01

Sun: Altitude: 3.77 Azimuth: 105.62

Moon: Altitude: -33.07 Azimuth: 274.68

SAAO

Object: Altitude: 44.02 Azimuth: 36.20

Sun: Altitude: -3.36 Azimuth: 104.12

Moon: Altitude: -12.05 Azimuth: 311.22

IAC

Object: Altitude: 0.64 Azimuth: 9.81

Sun: Altitude: 43.30 Azimuth: 82.10

Moon: Altitude: -74.32 Azimuth: 264.23

Argentina

Object: Altitude: 54.56 Azimuth: 331.45

Sun: Altitude: 44.24 Azimuth: 186.67

Moon: Altitude: -23.34 Azimuth: 34.73

Mexico

Object: Altitude: -19.07 Azimuth: 328.95

Sun: Altitude: 44.49 Azimuth: 281.74

Moon: Altitude: -23.77 Azimuth: 73.35

Ural

Object: Altitude: -48.66 Azimuth: 49.73

Sun: Altitude: -5.53 Azimuth: 125.94

Moon: Altitude: -19.50 Azimuth: 287.29

Vostryakovo

Object: Altitude: -39.06 Azimuth: 38.82

Sun: Altitude: 4.49 Azimuth: 107.75

Moon: Altitude: -31.13 Azimuth: 270.83

Gal. latitude: -43.184798 Gal. longitude: 270.716856

Dist. to Sun: 76.761135

Dist. to Moon: 94.783604

Moon coord.: (244.799857 d, -25.628245 d)

Sun coord.: (34.246109 d, 13.716346 d)

Lunar disk: 0.928786

Lunar phase: 30.954860

Lunar bright limb: 106.648775

No SN in this field

Recent coverage and limits telegrams

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

  ID = 7793
TYPE = 35
DAYS = 2


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) started inspect of the FERMI GRB230209.98 (trigger No 697678542,04h 15m 21.60s , -58d 33m 00.0s, R=9.42) errorbox  68985 sec after notice time and 69019 sec after trigger time at 2023-02-10 18:45:56 UT, with upper limit up to  19.7 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -43 deg., longitude l = 269 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2197927

We obtain a following upper limits.  

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

   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 18m 19.25s , -55d 00m 58.8s) |   C |    60 | 17.8 |        
   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 19m 54.07s , -55d 01m 37.3s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 18m 18.60s , -55d 00m 01.5s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 19m 53.99s , -55d 00m 36.0s) |   B |    60 | 18.0 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 42m 26.03s , -60d 08m 42.3s) |   C |   180 | 19.4 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 44m 15.13s , -60d 09m 18.8s) |   C |   180 | 19.4 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 42m 31.59s , -60d 09m 03.3s) |   C |   180 | 19.7 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 44m 21.31s , -60d 09m 46.7s) |   C |   180 | 19.6 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 42m 42.65s , -60d 06m 43.1s) |   C |   180 | 19.7 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 44m 32.26s , -60d 07m 24.6s) |   C |   180 | 19.6 |        
   76578 | 2023-02-10 20:51:25 |         MASTER-SAAO | (04h 07m 31.48s , -57d 42m 55.3s) |   C |    60 | 17.8 |        
   76578 | 2023-02-10 20:51:25 |         MASTER-SAAO | (04h 09m 12.99s , -57d 42m 48.2s) |   C |    60 | 18.0 |        
   76668 | 2023-02-10 20:52:55 |         MASTER-SAAO | (04h 22m 22.03s , -57d 44m 00.2s) |   C |    60 | 17.9 |        
   76668 | 2023-02-10 20:52:55 |         MASTER-SAAO | (04h 24m 03.86s , -57d 43m 49.4s) |   C |    60 | 18.0 |        
   76748 | 2023-02-10 20:54:15 |         MASTER-SAAO | (04h 23m 10.51s , -59d 36m 16.4s) |   C |    60 | 18.9 |        
   76748 | 2023-02-10 20:54:15 |         MASTER-SAAO | (04h 21m 23.03s , -59d 36m 28.6s) |   C |    60 | 18.7 |        
   76839 | 2023-02-10 20:55:45 |         MASTER-SAAO | (04h 38m 58.70s , -59d 37m 54.9s) |   C |    60 | 18.7 |        
   76839 | 2023-02-10 20:55:45 |         MASTER-SAAO | (04h 37m 10.93s , -59d 37m 59.1s) |   C |    60 | 18.6 |        
   77015 | 2023-02-10 20:58:42 |         MASTER-SAAO | (04h 20m 27.96s , -54d 57m 02.4s) |   C |    60 | 17.5 |        
   77015 | 2023-02-10 20:58:42 |         MASTER-SAAO | (04h 18m 53.25s , -54d 57m 02.0s) |   C |    60 | 17.5 |        
   77107 | 2023-02-10 21:00:14 |         MASTER-SAAO | (04h 20m 28.43s , -54d 56m 00.5s) |   B |    60 | 18.0 |        
   77107 | 2023-02-10 21:00:14 |         MASTER-SAAO | (04h 18m 53.10s , -54d 56m 00.9s) |   C |    60 | 17.5 |        
   77831 | 2023-02-10 21:12:18 |         MASTER-SAAO | (04h 07m 25.55s , -57d 42m 07.2s) |   C |    60 | 17.8 |        
   77831 | 2023-02-10 21:12:18 |         MASTER-SAAO | (04h 09m 06.92s , -57d 42m 14.9s) |   C |    60 | 18.0 |        
   77922 | 2023-02-10 21:13:49 |         MASTER-SAAO | (04h 24m 06.10s , -57d 41m 15.7s) |   C |    60 | 18.0 |        
   77922 | 2023-02-10 21:13:49 |         MASTER-SAAO | (04h 22m 24.47s , -57d 41m 13.5s) |   C |    60 | 17.6 |        
   78012 | 2023-02-10 21:15:18 |         MASTER-SAAO | (04h 23m 15.75s , -59d 36m 15.1s) |   C |    60 | 18.7 |        
   78012 | 2023-02-10 21:15:18 |         MASTER-SAAO | (04h 21m 28.36s , -59d 36m 15.5s) |   C |    60 | 18.6 |        
   78091 | 2023-02-10 21:16:38 |         MASTER-SAAO | (04h 38m 57.58s , -59d 37m 12.9s) |   C |    60 | 18.7 |        
   78091 | 2023-02-10 21:16:38 |         MASTER-SAAO | (04h 37m 10.06s , -59d 37m 19.6s) |   C |    60 | 18.5 |        
   78559 | 2023-02-10 21:24:26 |         MASTER-SAAO | (03h 53m 04.60s , -59d 35m 57.2s) |   C |    60 | 18.6 |        
   78559 | 2023-02-10 21:24:26 |         MASTER-SAAO | (03h 51m 18.12s , -59d 35m 27.2s) |   C |    60 | 18.6 |        
   78649 | 2023-02-10 21:25:56 |         MASTER-SAAO | (04h 08m 53.38s , -59d 34m 56.7s) |   C |    60 | 18.5 |        
   78649 | 2023-02-10 21:25:56 |         MASTER-SAAO | (04h 07m 06.59s , -59d 34m 39.9s) |   C |    60 | 18.5 |        
   78729 | 2023-02-10 21:27:16 |         MASTER-SAAO | (04h 07m 16.46s , -61d 30m 53.2s) |   C |    60 | 18.5 |        
   78729 | 2023-02-10 21:27:16 |         MASTER-SAAO | (04h 05m 23.09s , -61d 30m 39.7s) |   C |    60 | 18.4 |        
   78885 | 2023-02-10 21:28:52 |         MASTER-SAAO | (04h 05m 23.16s , -61d 30m 39.4s) |   C |   180 | 12.2 |        
   79039 | 2023-02-10 21:32:26 |         MASTER-SAAO | (04h 24m 06.29s , -61d 28m 53.6s) |   C |    60 | 18.5 |        
   79039 | 2023-02-10 21:32:26 |         MASTER-SAAO | (04h 22m 13.03s , -61d 28m 48.1s) |   C |    60 | 18.5 |        
   79129 | 2023-02-10 21:33:56 |         MASTER-SAAO | (04h 07m 28.95s , -57d 41m 55.8s) |   C |    60 | 17.7 |        
   79129 | 2023-02-10 21:33:56 |         MASTER-SAAO | (04h 09m 10.05s , -57d 42m 27.2s) |   C |    60 | 17.8 |        
   79208 | 2023-02-10 21:35:15 |         MASTER-SAAO | (04h 24m 11.83s , -57d 40m 49.5s) |   C |    60 | 17.9 |        
   79208 | 2023-02-10 21:35:15 |         MASTER-SAAO | (04h 22m 30.62s , -57d 40m 31.0s) |   C |    60 | 17.6 |        
   79300 | 2023-02-10 21:36:47 |         MASTER-SAAO | (04h 23m 08.83s , -59d 35m 41.1s) |   C |    60 | 18.2 |        
   79300 | 2023-02-10 21:36:47 |         MASTER-SAAO | (04h 21m 21.86s , -59d 35m 25.9s) |   C |    60 | 18.1 |        
   79391 | 2023-02-10 21:38:18 |         MASTER-SAAO | (04h 37m 11.73s , -59d 34m 30.5s) |   C |    60 | 18.3 |        
   79391 | 2023-02-10 21:38:18 |         MASTER-SAAO | (04h 38m 58.79s , -59d 34m 37.4s) |   C |    60 | 18.5 |        
   79682 | 2023-02-10 21:43:09 |         MASTER-SAAO | (03h 53m 03.34s , -59d 36m 33.1s) |   C |    60 | 18.5 |        
   79682 | 2023-02-10 21:43:09 |         MASTER-SAAO | (03h 51m 16.91s , -59d 35m 54.8s) |   C |    60 | 18.3 |        
   79763 | 2023-02-10 21:44:29 |         MASTER-SAAO | (04h 08m 59.08s , -59d 36m 06.6s) |   C |    60 | 18.5 |        
   79763 | 2023-02-10 21:44:29 |         MASTER-SAAO | (04h 07m 12.41s , -59d 35m 29.5s) |   C |    60 | 18.3 |        
   79853 | 2023-02-10 21:46:00 |         MASTER-SAAO | (04h 07m 18.30s , -61d 28m 41.1s) |   C |    60 | 18.4 |        
   79853 | 2023-02-10 21:46:00 |         MASTER-SAAO | (04h 05m 25.30s , -61d 28m 05.4s) |   C |    60 | 18.2 |        
   79932 | 2023-02-10 21:47:19 |         MASTER-SAAO | (04h 22m 12.92s , -61d 29m 36.6s) |   C |    60 | 18.3 |        
   79932 | 2023-02-10 21:47:19 |         MASTER-SAAO | (04h 24m 06.30s , -61d 29m 56.4s) |   C |    60 | 18.5 |        
   80087 | 2023-02-10 21:48:54 |         MASTER-SAAO | (04h 22m 13.01s , -61d 29m 36.2s) |   C |   180 | 12.5 |        
   80240 | 2023-02-10 21:52:27 |         MASTER-SAAO | (04h 23m 48.10s , -55d 46m 15.5s) |   C |    60 | 17.4 |        
   80240 | 2023-02-10 21:52:27 |         MASTER-SAAO | (04h 22m 12.25s , -55d 45m 37.7s) |   C |    60 | 17.4 |        
   80331 | 2023-02-10 21:53:57 |         MASTER-SAAO | (04h 38m 10.81s , -55d 47m 12.6s) |   C |    60 | 18.0 |        
   80331 | 2023-02-10 21:53:57 |         MASTER-SAAO | (04h 36m 34.68s , -55d 46m 38.7s) |   C |    60 | 17.8 |        
   80410 | 2023-02-10 21:55:17 |         MASTER-SAAO | (03h 55m 14.07s , -55d 47m 33.9s) |   C |    60 | 17.6 |        
   80410 | 2023-02-10 21:55:17 |         MASTER-SAAO | (03h 56m 49.57s , -55d 48m 13.2s) |   C |    60 | 17.7 |        
   80722 | 2023-02-10 22:00:29 |         MASTER-SAAO | (04h 09m 26.35s , -55d 46m 57.1s) |   C |    60 | 17.5 |        
   80722 | 2023-02-10 22:00:29 |         MASTER-SAAO | (04h 11m 02.15s , -55d 47m 35.8s) |   C |    60 | 17.5 |        
   80802 | 2023-02-10 22:01:49 |         MASTER-SAAO | (03h 51m 22.05s , -59d 33m 30.1s) |   C |    60 | 18.3 |        
   80802 | 2023-02-10 22:01:49 |         MASTER-SAAO | (03h 53m 08.12s , -59d 34m 09.2s) |   C |    60 | 18.3 |        
   80892 | 2023-02-10 22:03:19 |         MASTER-SAAO | (04h 07m 06.35s , -59d 34m 20.9s) |   C |    60 | 18.3 |        
   80892 | 2023-02-10 22:03:19 |         MASTER-SAAO | (04h 08m 52.72s , -59d 34m 58.6s) |   C |    60 | 18.3 |        
   80972 | 2023-02-10 22:04:39 |         MASTER-SAAO | (04h 05m 22.54s , -61d 27m 16.3s) |   C |    60 | 18.1 |        
   80972 | 2023-02-10 22:04:39 |         MASTER-SAAO | (04h 07m 15.34s , -61d 27m 53.8s) |   C |    60 | 18.2 |        
   81063 | 2023-02-10 22:06:09 |         MASTER-SAAO | (04h 24m 08.69s , -61d 28m 50.0s) |   C |    60 | 18.4 |        
   81063 | 2023-02-10 22:06:09 |         MASTER-SAAO | (04h 22m 15.58s , -61d 28m 13.2s) |   C |    60 | 18.3 |        
   81142 | 2023-02-10 22:07:29 |         MASTER-SAAO | (04h 22m 13.07s , -55d 47m 16.6s) |   C |    60 | 17.3 |        
   81142 | 2023-02-10 22:07:29 |         MASTER-SAAO | (04h 23m 49.11s , -55d 47m 54.2s) |   C |    60 | 17.4 |        
   81299 | 2023-02-10 22:09:06 |         MASTER-SAAO | (04h 22m 13.16s , -55d 47m 16.3s) |   C |   180 | 13.0 |        
   81451 | 2023-02-10 22:12:38 |         MASTER-SAAO | (04h 36m 31.02s , -55d 45m 22.1s) |   C |    60 | 17.5 |        
   81451 | 2023-02-10 22:12:38 |         MASTER-SAAO | (04h 38m 06.94s , -55d 46m 01.7s) |   C |    60 | 17.8 |        
   81542 | 2023-02-10 22:14:09 |         MASTER-SAAO | (03h 56m 45.94s , -55d 47m 45.6s) |   C |    60 | 17.6 |        
   81542 | 2023-02-10 22:14:09 |         MASTER-SAAO | (03h 55m 10.56s , -55d 47m 03.6s) |   C |    60 | 17.6 |        
   81632 | 2023-02-10 22:15:39 |         MASTER-SAAO | (04h 11m 05.41s , -55d 46m 07.3s) |   C |    60 | 17.4 |        
   81632 | 2023-02-10 22:15:39 |         MASTER-SAAO | (04h 09m 29.85s , -55d 45m 26.1s) |   C |    60 | 17.5 |        
   81712 | 2023-02-10 22:16:59 |         MASTER-SAAO | (04h 35m 55.26s , -57d 38m 54.2s) |   C |    60 | 18.0 |        
   81712 | 2023-02-10 22:16:59 |         MASTER-SAAO | (04h 37m 36.15s , -57d 39m 33.1s) |   C |    60 | 18.0 |        
   81803 | 2023-02-10 22:18:30 |         MASTER-SAAO | (04h 50m 59.32s , -57d 39m 50.6s) |   C |    60 | 18.2 |        
   81803 | 2023-02-10 22:18:30 |         MASTER-SAAO | (04h 52m 40.50s , -57d 40m 28.6s) |   C |    60 | 18.2 |        
   81883 | 2023-02-10 22:19:50 |         MASTER-SAAO | (04h 37m 21.67s , -61d 28m 32.5s) |   C |    60 | 18.2 |        
   81883 | 2023-02-10 22:19:50 |         MASTER-SAAO | (04h 39m 14.83s , -61d 29m 10.9s) |   C |    60 | 18.3 |        
   81973 | 2023-02-10 22:21:20 |         MASTER-SAAO | (04h 54m 06.63s , -61d 27m 21.8s) |   C |    60 | 18.1 |        
   81973 | 2023-02-10 22:21:20 |         MASTER-SAAO | (04h 55m 59.98s , -61d 27m 45.3s) |   C |    60 | 18.4 |        
   82053 | 2023-02-10 22:22:40 |         MASTER-SAAO | (04h 22m 15.81s , -55d 46m 33.4s) |   C |    60 | 17.3 |        
   82053 | 2023-02-10 22:22:40 |         MASTER-SAAO | (04h 23m 51.61s , -55d 47m 14.2s) |   C |    60 | 17.3 |        
   82144 | 2023-02-10 22:24:10 |         MASTER-SAAO | (03h 40m 34.17s , -57d 40m 37.7s) |   C |    60 | 17.6 |        
   82144 | 2023-02-10 22:24:10 |         MASTER-SAAO | (03h 38m 54.06s , -57d 39m 53.3s) |   C |    60 | 17.6 |        
   82223 | 2023-02-10 22:25:30 |         MASTER-SAAO | (03h 53m 55.57s , -57d 38m 46.9s) |   C |    60 | 17.6 |        
   82223 | 2023-02-10 22:25:30 |         MASTER-SAAO | (03h 55m 35.91s , -57d 39m 30.6s) |   C |    60 | 17.6 |        
   82591 | 2023-02-10 22:31:38 |         MASTER-SAAO | (04h 36m 32.81s , -55d 45m 40.4s) |   C |    60 | 18.2 |        
   82591 | 2023-02-10 22:31:38 |         MASTER-SAAO | (04h 38m 09.57s , -55d 47m 29.0s) |   C |    60 | 18.2 |        
   82671 | 2023-02-10 22:32:58 |         MASTER-SAAO | (03h 55m 06.04s , -55d 46m 43.4s) |   C |    60 | 17.6 |        
   82671 | 2023-02-10 22:32:58 |         MASTER-SAAO | (03h 56m 42.23s , -55d 48m 13.8s) |   C |    60 | 17.7 |        
   82761 | 2023-02-10 22:34:28 |         MASTER-SAAO | (04h 09m 28.55s , -55d 46m 33.0s) |   C |    60 | 17.7 |        
   82761 | 2023-02-10 22:34:28 |         MASTER-SAAO | (04h 11m 04.95s , -55d 48m 02.5s) |   C |    60 | 17.7 |        
   82841 | 2023-02-10 22:35:48 |         MASTER-SAAO | (04h 35m 56.96s , -57d 38m 52.7s) |   C |    60 | 18.5 |        
   82841 | 2023-02-10 22:35:48 |         MASTER-SAAO | (04h 37m 38.69s , -57d 40m 20.1s) |   C |    60 | 18.5 |        
   82933 | 2023-02-10 22:37:20 |         MASTER-SAAO | (04h 52m 38.22s , -57d 41m 20.2s) |   C |    60 | 18.8 |        
   82933 | 2023-02-10 22:37:20 |         MASTER-SAAO | (04h 50m 56.25s , -57d 39m 54.2s) |   C |    60 | 18.8 |        
   83024 | 2023-02-10 22:38:51 |         MASTER-SAAO | (04h 39m 15.16s , -61d 28m 02.4s) |   C |    60 | 18.7 |        
   83024 | 2023-02-10 22:38:51 |         MASTER-SAAO | (04h 37m 21.21s , -61d 26m 35.8s) |   C |    60 | 18.7 |        
   83104 | 2023-02-10 22:40:11 |         MASTER-SAAO | (04h 54m 01.83s , -61d 27m 13.1s) |   C |    60 | 18.7 |        
   83104 | 2023-02-10 22:40:11 |         MASTER-SAAO | (04h 55m 56.09s , -61d 28m 38.4s) |   C |    60 | 18.7 |        
   83194 | 2023-02-10 22:41:41 |         MASTER-SAAO | (03h 38m 53.35s , -57d 38m 29.0s) |   C |    60 | 17.7 |        
   83194 | 2023-02-10 22:41:41 |         MASTER-SAAO | (03h 40m 34.25s , -57d 40m 01.8s) |   C |    60 | 17.7 |        
   83274 | 2023-02-10 22:43:01 |         MASTER-SAAO | (03h 54m 00.23s , -57d 39m 21.5s) |   C |    60 | 17.8 |        
   83274 | 2023-02-10 22:43:01 |         MASTER-SAAO | (03h 55m 41.43s , -57d 40m 53.5s) |   C |    60 | 17.9 |        
   83365 | 2023-02-10 22:44:32 |         MASTER-SAAO | (04h 10m 06.65s , -53d 52m 12.1s) |   C |    60 | 17.7 |        
   83365 | 2023-02-10 22:44:32 |         MASTER-SAAO | (04h 11m 38.54s , -53d 53m 43.7s) |   C |    60 | 17.7 |        
   83455 | 2023-02-10 22:46:02 |         MASTER-SAAO | (04h 23m 40.58s , -53d 50m 27.1s) |   C |    60 | 17.6 |        
   83455 | 2023-02-10 22:46:02 |         MASTER-SAAO | (04h 25m 12.60s , -53d 51m 58.0s) |   C |    60 | 17.6 |        
   83535 | 2023-02-10 22:47:22 |         MASTER-SAAO | (03h 33m 33.37s , -61d 26m 47.8s) |   C |    60 | 18.6 |        
   83535 | 2023-02-10 22:47:22 |         MASTER-SAAO | (03h 35m 26.43s , -61d 28m 21.1s) |   C |    60 | 18.7 |        
   83628 | 2023-02-10 22:48:55 |         MASTER-SAAO | (03h 50m 14.57s , -61d 27m 10.3s) |   C |    60 | 18.7 |        
   83628 | 2023-02-10 22:48:55 |         MASTER-SAAO | (03h 52m 07.93s , -61d 28m 42.8s) |   C |    60 | 18.6 |        
   83707 | 2023-02-10 22:50:14 |         MASTER-SAAO | (04h 21m 39.58s , -63d 20m 57.5s) |   C |    60 | 18.6 |        
   83707 | 2023-02-10 22:50:14 |         MASTER-SAAO | (04h 23m 41.00s , -63d 22m 27.4s) |   C |    60 | 18.6 |        
   83799 | 2023-02-10 22:51:46 |         MASTER-SAAO | (04h 39m 27.70s , -63d 21m 52.0s) |   C |    60 | 18.6 |        
   83799 | 2023-02-10 22:51:46 |         MASTER-SAAO | (04h 41m 29.25s , -63d 23m 19.7s) |   C |    60 | 18.6 |        
   83879 | 2023-02-10 22:53:06 |         MASTER-SAAO | (04h 35m 58.05s , -57d 39m 38.9s) |   C |    60 | 18.4 |        
   83879 | 2023-02-10 22:53:06 |         MASTER-SAAO | (04h 37m 39.75s , -57d 41m 07.9s) |   C |    60 | 18.5 |        
   83969 | 2023-02-10 22:54:36 |         MASTER-SAAO | (04h 50m 55.55s , -57d 37m 54.9s) |   C |    60 | 18.8 |        
   83969 | 2023-02-10 22:54:36 |         MASTER-SAAO | (04h 52m 37.34s , -57d 39m 23.3s) |   C |    60 | 18.8 |        
   84049 | 2023-02-10 22:55:56 |         MASTER-SAAO | (04h 37m 18.08s , -61d 27m 42.9s) |   C |    60 | 18.7 |        
   84049 | 2023-02-10 22:55:56 |         MASTER-SAAO | (04h 39m 12.00s , -61d 29m 11.4s) |   C |    60 | 18.7 |        
   84141 | 2023-02-10 22:57:28 |         MASTER-SAAO | (04h 54m 07.77s , -61d 25m 58.7s) |   C |    60 | 18.6 |        
   84141 | 2023-02-10 22:57:28 |         MASTER-SAAO | (04h 56m 01.81s , -61d 27m 25.9s) |   C |    60 | 18.6 |        
   84231 | 2023-02-10 22:58:58 |         MASTER-SAAO | (03h 38m 54.51s , -57d 39m 06.0s) |   C |    60 | 17.9 |        
   84231 | 2023-02-10 22:58:58 |         MASTER-SAAO | (03h 40m 35.18s , -57d 40m 40.1s) |   C |    60 | 17.9 |        
   84311 | 2023-02-10 23:00:18 |         MASTER-SAAO | (03h 53m 53.51s , -57d 37m 56.8s) |   C |    60 | 17.7 |        
   84311 | 2023-02-10 23:00:18 |         MASTER-SAAO | (03h 55m 34.29s , -57d 39m 30.4s) |   C |    60 | 17.8 |        
   84404 | 2023-02-10 23:01:50 |         MASTER-SAAO | (04h 10m 07.47s , -53d 50m 52.3s) |   C |    60 | 17.6 |        
   84404 | 2023-02-10 23:01:50 |         MASTER-SAAO | (04h 11m 39.01s , -53d 52m 25.6s) |   C |    60 | 17.5 |        
   84483 | 2023-02-10 23:03:10 |         MASTER-SAAO | (04h 23m 36.60s , -53d 51m 45.5s) |   C |    60 | 17.6 |        
   84483 | 2023-02-10 23:03:10 |         MASTER-SAAO | (04h 25m 08.32s , -53d 53m 18.2s) |   C |    60 | 17.6 |        
   84574 | 2023-02-10 23:04:41 |         MASTER-SAAO | (03h 35m 26.26s , -61d 29m 22.5s) |   C |    60 | 18.4 |        
   84574 | 2023-02-10 23:04:41 |         MASTER-SAAO | (03h 33m 33.53s , -61d 27m 47.1s) |   C |    60 | 18.3 |        
   84654 | 2023-02-10 23:06:00 |         MASTER-SAAO | (03h 50m 17.93s , -61d 26m 09.9s) |   C |    60 | 18.6 |        
   84654 | 2023-02-10 23:06:00 |         MASTER-SAAO | (03h 52m 10.98s , -61d 27m 44.9s) |   C |    60 | 18.5 |        
   84745 | 2023-02-10 23:07:32 |         MASTER-SAAO | (04h 21m 36.82s , -63d 21m 03.1s) |   C |    60 | 18.5 |        
   84745 | 2023-02-10 23:07:32 |         MASTER-SAAO | (04h 23m 38.04s , -63d 22m 35.2s) |   C |    60 | 18.5 |        
   84837 | 2023-02-10 23:09:04 |         MASTER-SAAO | (04h 41m 33.91s , -63d 20m 56.3s) |   C |    60 | 18.6 |        
   84837 | 2023-02-10 23:09:04 |         MASTER-SAAO | (04h 39m 32.47s , -63d 19m 25.8s) |   C |    60 | 18.6 |        
   84917 | 2023-02-10 23:10:23 |         MASTER-SAAO | (04h 51m 25.14s , -59d 31m 23.3s) |   C |    60 | 18.6 |        
   84917 | 2023-02-10 23:10:23 |         MASTER-SAAO | (04h 53m 12.76s , -59d 32m 53.3s) |   C |    60 | 18.6 |        
   85007 | 2023-02-10 23:11:54 |         MASTER-SAAO | (05h 07m 20.61s , -59d 32m 16.8s) |   C |    60 | 18.7 |        
   85007 | 2023-02-10 23:11:54 |         MASTER-SAAO | (05h 09m 08.39s , -59d 33m 45.3s) |   C |    60 | 18.7 |        
   85087 | 2023-02-10 23:13:14 |         MASTER-SAAO | (04h 49m 21.63s , -55d 45m 11.4s) |   C |    60 | 18.8 |        
   85087 | 2023-02-10 23:13:14 |         MASTER-SAAO | (04h 50m 58.42s , -55d 46m 41.7s) |   C |    60 | 18.7 |        
   85178 | 2023-02-10 23:14:45 |         MASTER-SAAO | (05h 03m 33.04s , -55d 43m 37.7s) |   C |    60 | 18.9 |        
   85178 | 2023-02-10 23:14:45 |         MASTER-SAAO | (05h 05m 10.03s , -55d 45m 07.5s) |   C |    60 | 18.8 |        
   85269 | 2023-02-10 23:16:16 |         MASTER-SAAO | (04h 35m 57.38s , -53d 49m 32.7s) |   C |    60 | 17.9 |        
   85269 | 2023-02-10 23:16:16 |         MASTER-SAAO | (04h 37m 29.43s , -53d 51m 04.7s) |   C |    60 | 17.9 |        
   85349 | 2023-02-10 23:17:36 |         MASTER-SAAO | (04h 49m 25.90s , -53d 50m 16.1s) |   C |    60 | 18.8 |        
   85349 | 2023-02-10 23:17:36 |         MASTER-SAAO | (04h 50m 58.12s , -53d 51m 47.5s) |   C |    60 | 18.8 |        
   85441 | 2023-02-10 23:19:08 |         MASTER-SAAO | (04h 10m 00.10s , -53d 49m 29.3s) |   C |    60 | 17.6 |        
   85441 | 2023-02-10 23:19:08 |         MASTER-SAAO | (04h 11m 31.64s , -53d 51m 03.9s) |   C |    60 | 17.5 |        
   85520 | 2023-02-10 23:20:27 |         MASTER-SAAO | (04h 25m 14.74s , -53d 51m 55.9s) |   C |    60 | 13.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7788
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) started inspect of the FERMI GRB230209.98 (trigger No 697678542,04h 15m 21.60s , -58d 33m 00.0s, R=9.42) errorbox  68985 sec after notice time and 69019 sec after trigger time at 2023-02-10 18:45:56 UT, with upper limit up to  19.7 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -43 deg., longitude l = 269 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2197927

We obtain a following upper limits.  

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

   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 18m 19.25s , -55d 00m 58.8s) |   C |    60 | 17.8 |        
   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 19m 54.07s , -55d 01m 37.3s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 18m 18.60s , -55d 00m 01.5s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 19m 53.99s , -55d 00m 36.0s) |   B |    60 | 18.0 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 42m 26.03s , -60d 08m 42.3s) |   C |   180 | 19.4 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 44m 15.13s , -60d 09m 18.8s) |   C |   180 | 19.4 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 42m 31.59s , -60d 09m 03.3s) |   C |   180 | 19.7 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 44m 21.31s , -60d 09m 46.7s) |   C |   180 | 19.6 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 42m 42.65s , -60d 06m 43.1s) |   C |   180 | 19.7 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 44m 32.26s , -60d 07m 24.6s) |   C |   180 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7789
TYPE = 35
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) started inspect of the FERMI GRB230209.98 (trigger No 697678542,04h 15m 21.60s , -58d 33m 00.0s, R=9.42) errorbox  68985 sec after notice time and 69019 sec after trigger time at 2023-02-10 18:45:56 UT, with upper limit up to  19.7 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -43 deg., longitude l = 269 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2197927

We obtain a following upper limits.  

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

   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 18m 19.25s , -55d 00m 58.8s) |   C |    60 | 17.8 |        
   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 19m 54.07s , -55d 01m 37.3s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 18m 18.60s , -55d 00m 01.5s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 19m 53.99s , -55d 00m 36.0s) |   B |    60 | 18.0 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 42m 26.03s , -60d 08m 42.3s) |   C |   180 | 19.4 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 44m 15.13s , -60d 09m 18.8s) |   C |   180 | 19.4 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 42m 31.59s , -60d 09m 03.3s) |   C |   180 | 19.7 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 44m 21.31s , -60d 09m 46.7s) |   C |   180 | 19.6 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 42m 42.65s , -60d 06m 43.1s) |   C |   180 | 19.7 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 44m 32.26s , -60d 07m 24.6s) |   C |   180 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 7790
TYPE = 35
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) started inspect of the FERMI GRB230209.98 (trigger No 697678542,04h 15m 21.60s , -58d 33m 00.0s, R=9.42) errorbox  68985 sec after notice time and 69019 sec after trigger time at 2023-02-10 18:45:56 UT, with upper limit up to  19.7 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -43 deg., longitude l = 269 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2197927

We obtain a following upper limits.  

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

   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 18m 19.25s , -55d 00m 58.8s) |   C |    60 | 17.8 |        
   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 19m 54.07s , -55d 01m 37.3s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 18m 18.60s , -55d 00m 01.5s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 19m 53.99s , -55d 00m 36.0s) |   B |    60 | 18.0 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 42m 26.03s , -60d 08m 42.3s) |   C |   180 | 19.4 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 44m 15.13s , -60d 09m 18.8s) |   C |   180 | 19.4 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 42m 31.59s , -60d 09m 03.3s) |   C |   180 | 19.7 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 44m 21.31s , -60d 09m 46.7s) |   C |   180 | 19.6 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 42m 42.65s , -60d 06m 43.1s) |   C |   180 | 19.7 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 44m 32.26s , -60d 07m 24.6s) |   C |   180 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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



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  ID = 7792
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) started inspect of the FERMI GRB230209.98 (trigger No 697678542,04h 15m 21.60s , -58d 33m 00.0s, R=9.42) errorbox  68985 sec after notice time and 69019 sec after trigger time at 2023-02-10 18:45:56 UT, with upper limit up to  19.7 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -14.9 deg. 

The galactic latitude b = -43 deg., longitude l = 269 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2197927

We obtain a following upper limits.  

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

   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 18m 19.25s , -55d 00m 58.8s) |   C |    60 | 17.8 |        
   69049 | 2023-02-10 18:45:56 |         MASTER-SAAO | (04h 19m 54.07s , -55d 01m 37.3s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 18m 18.60s , -55d 00m 01.5s) |   C |    60 | 17.8 |        
   69141 | 2023-02-10 18:47:28 |         MASTER-SAAO | (04h 19m 53.99s , -55d 00m 36.0s) |   B |    60 | 18.0 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 42m 26.03s , -60d 08m 42.3s) |   C |   180 | 19.4 |        
   69293 | 2023-02-10 18:49:00 |         MASTER-SAAO | (04h 44m 15.13s , -60d 09m 18.8s) |   C |   180 | 19.4 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 42m 31.59s , -60d 09m 03.3s) |   C |   180 | 19.7 |        
   70877 | 2023-02-10 19:15:24 |         MASTER-SAAO | (04h 44m 21.31s , -60d 09m 46.7s) |   C |   180 | 19.6 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 42m 42.65s , -60d 06m 43.1s) |   C |   180 | 19.7 |        
   71950 | 2023-02-10 19:33:17 |         MASTER-SAAO | (04h 44m 32.26s , -60d 07m 24.6s) |   C |   180 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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



 

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