GRB231220.67 page :: MASTER Database

MASTER Net MASTER Database: GRB231220.67 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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Name

FERMI GRB231220.67

Trignum

724781422

Trigger time

2023-12-20 16:10:17.4

Notice time

2023-12-20 16:19:29.87041

Coord, eb

(04h 53m 28.80s , +82d 17m 24.0s) , 5.04

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
2338300	2023-12-20 16:19:35.962504	04^h 53^m 28.80^s +82^d 17^m 24.0^s	FERMI	5.04	alert	724781422	12	115	alert
2338288	2023-12-20 16:11:11.032986	04^h 54^m 36.00^s +82^d 24^m 36.0^s	FERMI	4.31	alert	724781422	12	112	alert
2338283	2023-12-20 16:10:57.026802	14^h 39^m 40.08^s +84^d 57^m 00.0^s	FERMI	12.23	alert	724781422	95	111	alert

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

Synchronous WFC images

Distance	datetime	coord2000	observatory	links
37.3	2023-12-20 16:07:58.689	18^h 09^m 39.00^s +60^d 05^m 59.0^s	Tunka	Database Tunka
87.8	2023-12-20 16:10:01.72	00^h 00^m 00.00^s +00^d 00^m 00.0^s	SAAO	Database SAAO

Errorbox center visibility at MASTER facilities

trigger

notice

notice+1hr

now

2023-12-20 16:10:17 (JD 2460299.173808)

Siderial time 0.611884 h

Ra 04:53:28.80 Dec 82:17:24.00
( 73.370000d, 82.290000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 57.12 Azimuth: 173.85

Sun: Altitude: -61.77 Azimuth: 201.80

Moon: Altitude: 2.43 Azimuth: 91.54

Tunka

Object: Altitude: 59.52 Azimuth: 179.67

Sun: Altitude: -59.82 Azimuth: 155.01

Moon: Altitude: 17.34 Azimuth: 71.80

Kislovodsk

Object: Altitude: 47.28 Azimuth: 189.79

Sun: Altitude: -27.29 Azimuth: 82.78

Moon: Altitude: 48.90 Azimuth: 7.12

Tavrida

Object: Altitude: 47.17 Azimuth: 190.53

Sun: Altitude: -21.45 Azimuth: 77.75

Moon: Altitude: 47.99 Azimuth: 354.28

SAAO

Object: Altitude: -30.86 Azimuth: 188.88

Sun: Altitude: 16.80 Azimuth: 72.52

Moon: Altitude: 51.24 Azimuth: 207.86

IAC

Object: Altitude: 24.44 Azimuth: 187.45

Sun: Altitude: 21.22 Azimuth: 46.08

Moon: Altitude: 32.42 Azimuth: 285.96

Argentina

Object: Altitude: -39.41 Azimuth: 181.53

Sun: Altitude: 80.20 Azimuth: 212.83

Moon: Altitude: -16.07 Azimuth: 276.76

Mexico

Object: Altitude: 24.45 Azimuth: 175.50

Sun: Altitude: 19.43 Azimuth: 314.80

Moon: Altitude: -44.57 Azimuth: 227.57

Ural

Object: Altitude: 62.31 Azimuth: 191.20

Sun: Altitude: -37.32 Azimuth: 104.86

Moon: Altitude: 33.14 Azimuth: 26.16

Vostryakovo

Object: Altitude: 58.09 Azimuth: 193.19

Sun: Altitude: -25.47 Azimuth: 85.10

Moon: Altitude: 37.47 Azimuth: 359.95

Gal. latitude: 23.485241 Gal. longitude: 130.358908

Dist. to Sun: 120.876862

Dist. to Moon: 83.790346

Moon coord.: (9.406220 d, 2.854651 d)

Sun coord.: (268.008874 d, -23.433988 d)

Lunar disk: 0.601649

Lunar phase: 78.270080

Lunar bright limb: 246.654727

No SN in this field

2023-12-20 16:19:29 (JD 2460299.180197)

Siderial time 0.765637 h

Ra 04:53:28.80 Dec 82:17:24.00
( 73.370000d, 82.290000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 56.96 Azimuth: 173.37

Sun: Altitude: -61.18 Azimuth: 206.04

Moon: Altitude: 1.04 Azimuth: 93.28

Tunka

Object: Altitude: 59.50 Azimuth: 179.06

Sun: Altitude: -60.37 Azimuth: 159.10

Moon: Altitude: 16.05 Azimuth: 73.69

Kislovodsk

Object: Altitude: 47.56 Azimuth: 189.60

Sun: Altitude: -28.94 Azimuth: 84.27

Moon: Altitude: 48.69 Azimuth: 10.48

Tavrida

Object: Altitude: 47.47 Azimuth: 190.40

Sun: Altitude: -23.05 Azimuth: 79.23

Moon: Altitude: 48.14 Azimuth: 357.60

SAAO

Object: Altitude: -30.56 Azimuth: 188.79

Sun: Altitude: 14.96 Azimuth: 71.46

Moon: Altitude: 52.03 Azimuth: 204.51

IAC

Object: Altitude: 24.71 Azimuth: 187.63

Sun: Altitude: 19.74 Azimuth: 47.69

Moon: Altitude: 34.32 Azimuth: 287.34

Argentina

Object: Altitude: -39.35 Azimuth: 181.93

Sun: Altitude: 81.08 Azimuth: 201.04

Moon: Altitude: -14.21 Azimuth: 275.49

Mexico

Object: Altitude: 24.30 Azimuth: 175.79

Sun: Altitude: 20.80 Azimuth: 316.50

Moon: Altitude: -43.10 Azimuth: 229.89

Ural

Object: Altitude: 62.55 Azimuth: 190.77

Sun: Altitude: -38.52 Azimuth: 107.05

Moon: Altitude: 32.62 Azimuth: 28.74

Vostryakovo

Object: Altitude: 58.39 Azimuth: 193.02

Sun: Altitude: -26.77 Azimuth: 86.94

Moon: Altitude: 37.49 Azimuth: 2.76

Gal. latitude: 23.485241 Gal. longitude: 130.358908

Dist. to Sun: 120.876695

Dist. to Moon: 83.739235

Moon coord.: (9.484898 d, 2.896545 d)

Sun coord.: (268.015960 d, -23.434079 d)

Lunar disk: 0.602351

Lunar phase: 78.187898

Lunar bright limb: 246.660268

No SN in this field

2023-12-20 17:19:29 (JD 2460299.221863)

Siderial time 1.768375 h

Ra 04:53:28.80 Dec 82:17:24.00
( 73.370000d, 82.290000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 55.62 Azimuth: 170.67

Sun: Altitude: -55.26 Azimuth: 229.82

Moon: Altitude: -7.90 Azimuth: 104.75

Tunka

Object: Altitude: 59.03 Azimuth: 175.23

Sun: Altitude: -61.47 Azimuth: 187.53

Moon: Altitude: 7.45 Azimuth: 85.64

Kislovodsk

Object: Altitude: 49.23 Azimuth: 187.89

Sun: Altitude: -39.76 Azimuth: 94.60

Moon: Altitude: 45.21 Azimuth: 31.19

Tavrida

Object: Altitude: 49.30 Azimuth: 189.13

Sun: Altitude: -33.64 Azimuth: 89.24

Moon: Altitude: 46.91 Azimuth: 19.08

SAAO

Object: Altitude: -28.71 Azimuth: 187.88

Sun: Altitude: 3.24 Azimuth: 64.16

Moon: Altitude: 54.45 Azimuth: 180.48

IAC

Object: Altitude: 26.57 Azimuth: 188.47

Sun: Altitude: 9.28 Azimuth: 56.93

Moon: Altitude: 46.28 Azimuth: 298.18

Argentina

Object: Altitude: -38.65 Azimuth: 184.35

Sun: Altitude: 76.82 Azimuth: 126.54

Moon: Altitude: -2.02 Azimuth: 267.52

Mexico

Object: Altitude: 23.58 Azimuth: 177.85

Sun: Altitude: 28.60 Azimuth: 328.99

Moon: Altitude: -32.55 Azimuth: 242.56

Ural

Object: Altitude: 63.85 Azimuth: 187.37

Sun: Altitude: -45.91 Azimuth: 122.77

Moon: Altitude: 28.15 Azimuth: 44.77

Vostryakovo

Object: Altitude: 60.21 Azimuth: 191.32

Sun: Altitude: -35.26 Azimuth: 99.60

Moon: Altitude: 36.07 Azimuth: 20.82

Gal. latitude: 23.485241 Gal. longitude: 130.358908

Dist. to Sun: 120.875598

Dist. to Moon: 83.406250

Moon coord.: (9.998024 d, 3.169556 d)

Sun coord.: (268.062172 d, -23.434660 d)

Lunar disk: 0.606924

Lunar phase: 77.652100

Lunar bright limb: 246.698058

No SN in this field

2024-05-20 05:38:05 (JD 2460450.734780)

Siderial time 0.034262 h

Ra 04:53:28.80 Dec 82:17:24.00
( 73.370000d, 82.290000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 57.63 Azimuth: 175.80

Sun: Altitude: 49.94 Azimuth: 53.11

Moon: Altitude: -18.78 Azimuth: 260.95

Tunka

Object: Altitude: 59.44 Azimuth: 181.95

Sun: Altitude: 57.48 Azimuth: 15.51

Moon: Altitude: -32.63 Azimuth: 238.62

Kislovodsk

Object: Altitude: 46.19 Azimuth: 190.35

Sun: Altitude: 41.07 Azimuth: 281.86

Moon: Altitude: -53.01 Azimuth: 156.82

Tavrida

Object: Altitude: 46.03 Azimuth: 190.83

Sun: Altitude: 34.90 Azimuth: 275.94

Moon: Altitude: -49.17 Azimuth: 144.87

SAAO

Object: Altitude: -32.01 Azimuth: 189.10

Sun: Altitude: 2.44 Azimuth: 244.35

Moon: Altitude: -36.66 Azimuth: 45.79

IAC

Object: Altitude: 23.50 Azimuth: 186.71

Sun: Altitude: -7.53 Azimuth: 242.39

Moon: Altitude: -19.16 Azimuth: 90.20

Argentina

Object: Altitude: -39.51 Azimuth: 180.03

Sun: Altitude: -71.16 Azimuth: 304.73

Moon: Altitude: 34.81 Azimuth: 102.25

Mexico

Object: Altitude: 25.10 Azimuth: 174.44

Sun: Altitude: -33.71 Azimuth: 151.90

Moon: Altitude: 48.20 Azimuth: 19.83

Ural

Object: Altitude: 61.33 Azimuth: 192.54

Sun: Altitude: 45.03 Azimuth: 310.78

Moon: Altitude: -41.68 Azimuth: 184.17

Vostryakovo

Object: Altitude: 56.95 Azimuth: 193.58

Sun: Altitude: 35.22 Azimuth: 286.55

Moon: Altitude: -41.14 Azimuth: 155.28

Gal. latitude: 23.485241 Gal. longitude: 130.358908

Dist. to Sun: 62.591725

Dist. to Moon: 103.243474

Moon coord.: (199.286758 d, -8.783067 d)

Sun coord.: (57.160793 d, 20.022142 d)

Lunar disk: 0.893120

Lunar phase: 38.164548

Lunar bright limb: 291.333692

No SN in this field

Recent coverage and limits telegrams

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

  ID = 9463
TYPE = 35
DAYS = 2


MASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the FERMI GRB231220.67 (trigger No 724781422,04h 54m 36.00s , +82d 24m 36.0s, R=4.31) errorbox  47 sec after notice time and 81 sec after trigger time at 2023-12-20 16:11:39 UT, with upper limit up to  20.0 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -60.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the FERMI GRB231220.67 errorbox  111 sec after notice time and 146 sec after trigger time at 2023-12-20 16:12:43 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -27.3 deg. 

The galactic latitude b = 24 deg., longitude l = 130 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2338284

We obtain a following upper limits.  

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

      92 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    20 | 18.9 |        
     117 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    70 | 19.6 |  Coadd 
     177 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 38.02s , +82d 29m 18.3s) |   C |   190 | 19.5 |  Coadd 
     116 | 2023-12-20 16:12:03 |        MASTER-Tunka | (04h 50m 37.58s , +82d 29m 18.9s) |   C |    20 | 19.0 |        
     145 | 2023-12-20 16:12:27 |        MASTER-Tunka | (04h 50m 37.01s , +82d 29m 20.5s) |   C |    30 | 19.2 |        
     161 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.17s , +82d 05m 38.2s) |   C |    30 | 18.4 |        
     206 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.18s , +82d 05m 38.2s) |   C |   120 | 19.4 |  Coadd 
     391 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.15s , +82d 05m 38.2s) |   C |   490 | 19.4 |  Coadd 
     179 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.68s , +82d 29m 21.6s) |   C |    30 | 19.2 |        
     224 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.71s , +82d 29m 21.6s) |   C |   120 | 19.1 |  Coadd 
     216 | 2023-12-20 16:13:33 |   MASTER-Kislovodsk | (05h 23m 55.20s , +82d 06m 40.5s) |   C |    40 | 18.8 |        
     218 | 2023-12-20 16:13:34 |        MASTER-Tunka | (04h 50m 35.94s , +82d 29m 23.3s) |   C |    40 | 18.3 |        
     266 | 2023-12-20 16:14:18 |        MASTER-Tunka | (04h 50m 35.30s , +82d 29m 25.3s) |   C |    50 | 18.4 |        
     283 | 2023-12-20 16:14:35 |   MASTER-Kislovodsk | (05h 23m 57.88s , +82d 05m 45.2s) |   C |    50 | 19.0 |        
     326 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.17s , +82d 29m 28.2s) |   C |    60 | 18.5 |        
     386 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.19s , +82d 29m 28.2s) |   C |   180 | 12.4 |  Coadd 
     360 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.33s , +82d 04m 49.1s) |   C |    60 | 19.0 |        
     515 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.29s , +82d 04m 49.1s) |   C |   370 | 19.6 |  Coadd 
     390 | 2023-12-20 16:16:16 |        MASTER-Tunka | (04h 50m 33.23s , +82d 29m 30.4s) |   C |    60 | 18.5 |        
     599 | 2023-12-20 16:19:46 |        MASTER-Tunka | (04h 49m 16.45s , +82d 24m 30.5s) |   C |    60 | 18.6 |        
     663 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.45s , +82d 24m 32.6s) |   C |    60 | 18.8 |        
     723 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.47s , +82d 24m 32.5s) |   C |   180 | 19.3 |  Coadd 
     727 | 2023-12-20 16:21:54 |        MASTER-Tunka | (04h 49m 14.41s , +82d 24m 34.9s) |   C |    60 | 18.8 |        
     777 | 2023-12-20 16:22:04 |   MASTER-Kislovodsk | (05h 22m 17.38s , +81d 58m 31.2s) |   C |   140 | 19.2 |        
     791 | 2023-12-20 16:22:58 |        MASTER-Tunka | (04h 49m 13.31s , +82d 24m 37.6s) |   C |    60 | 18.8 |        
     953 | 2023-12-20 16:24:45 |   MASTER-Kislovodsk | (05h 22m 25.64s , +81d 59m 51.5s) |   C |   170 | 19.3 |        
    1149 | 2023-12-20 16:27:56 |   MASTER-Kislovodsk | (05h 22m 17.42s , +81d 59m 23.7s) |   C |   180 | 19.4 |        
    1291 | 2023-12-20 16:31:18 |   MASTER-Kislovodsk | (04h 54m 53.65s , +82d 03m 55.3s) |   C |    60 | 15.0 |        
    2595 | 2023-12-20 16:53:02 |   MASTER-Kislovodsk | (04h 36m 40.50s , +82d 37m 42.1s) |   C |    60 | 18.4 |        
    2675 | 2023-12-20 16:54:22 |   MASTER-Kislovodsk | (06h 40m 35.82s , +82d 35m 35.2s) |   C |    60 | 18.5 |        
    2757 | 2023-12-20 16:55:44 |   MASTER-Kislovodsk | (06h 17m 17.19s , +84d 28m 19.6s) |   C |    60 | 18.6 |        
    2839 | 2023-12-20 16:57:05 |   MASTER-Kislovodsk | (05h 42m 20.32s , +78d 51m 06.7s) |   C |    60 | 18.8 |        
    2921 | 2023-12-20 16:58:28 |   MASTER-Kislovodsk | (05h 42m 52.38s , +78d 51m 07.7s) |   C |    60 | 14.8 |        
    3001 | 2023-12-20 16:59:48 |   MASTER-Kislovodsk | (05h 44m 09.29s , +78d 51m 11.1s) |   C |    60 | 14.8 |        
    3082 | 2023-12-20 17:01:09 |   MASTER-Kislovodsk | (03h 38m 32.79s , +80d 46m 42.5s) |   C |    60 | 18.5 |        
    3163 | 2023-12-20 17:02:29 |   MASTER-Kislovodsk | (03h 28m 26.96s , +84d 34m 57.7s) |   C |    60 | 18.6 |        
    3244 | 2023-12-20 17:03:51 |   MASTER-Kislovodsk | (05h 26m 07.87s , +86d 21m 38.1s) |   C |    60 | 18.7 |        
    3324 | 2023-12-20 17:05:11 |   MASTER-Kislovodsk | (07h 02m 56.70s , +78d 48m 04.5s) |   C |    60 | 18.6 |        
    3406 | 2023-12-20 17:06:32 |   MASTER-Kislovodsk | (04h 51m 59.60s , +76d 58m 32.8s) |   C |    60 | 18.6 |        
    4959 | 2023-12-20 17:32:26 |   MASTER-Kislovodsk | (05h 16m 05.81s , +80d 44m 30.6s) |   C |    60 | 18.7 |        
    5040 | 2023-12-20 17:33:47 |   MASTER-Kislovodsk | (04h 36m 36.25s , +82d 40m 42.7s) |   C |    60 | 18.5 |        
    5834 | 2023-12-20 17:47:01 |        MASTER-Tunka | (07h 41m 29.86s , +81d 06m 29.2s) |   C |    60 | 19.1 |        
    6492 | 2023-12-20 17:57:58 |   MASTER-Kislovodsk | (06h 16m 52.32s , +84d 31m 13.1s) |   C |    60 | 18.6 |        
    6574 | 2023-12-20 17:59:21 |   MASTER-Kislovodsk | (05h 42m 02.72s , +78d 51m 42.5s) |   C |    60 | 18.8 |        
    6654 | 2023-12-20 18:00:41 |   MASTER-Kislovodsk | (06h 53m 30.74s , +80d 42m 02.0s) |   C |    60 | 19.1 |        
    6736 | 2023-12-20 18:02:03 |   MASTER-Kislovodsk | (04h 21m 11.35s , +78d 53m 30.1s) |   C |    60 | 18.6 |        
    6788 | 2023-12-20 18:02:55 |        MASTER-Tunka | (07h 41m 24.50s , +81d 07m 43.1s) |   C |    60 | 18.8 |        
    6816 | 2023-12-20 18:03:23 |   MASTER-Kislovodsk | (04h 22m 08.01s , +78d 53m 39.7s) |   C |    60 | 15.3 |        
    6899 | 2023-12-20 18:04:46 |   MASTER-Kislovodsk | (04h 23m 20.71s , +78d 53m 44.8s) |   C |    60 | 15.0 |        
    6981 | 2023-12-20 18:06:08 |   MASTER-Kislovodsk | (05h 26m 38.44s , +86d 25m 37.0s) |   C |    60 | 18.9 |        
    7061 | 2023-12-20 18:07:28 |   MASTER-Kislovodsk | (07h 02m 44.00s , +78d 49m 53.0s) |   C |    60 | 19.0 |        
    7143 | 2023-12-20 18:08:50 |   MASTER-Kislovodsk | (04h 51m 42.18s , +77d 01m 10.5s) |   C |    60 | 18.7 |        
   16927 | 2023-12-20 20:51:54 |        MASTER-Tunka | (07h 34m 49.32s , +81d 16m 39.7s) |   C |    60 | 19.2 |        
   32300 | 2023-12-21 01:08:07 |   MASTER-Kislovodsk | (05h 23m 37.18s , +77d 31m 38.9s) |   C |    60 | 18.9 |        
   32382 | 2023-12-21 01:09:29 |   MASTER-Kislovodsk | (05h 24m 16.31s , +77d 31m 39.7s) |   C |    60 | 14.9 |        
   32462 | 2023-12-21 01:10:49 |   MASTER-Kislovodsk | (05h 25m 32.60s , +77d 31m 41.4s) |   C |    60 | 14.9 |        
   32719 | 2023-12-21 01:15:06 |   MASTER-Kislovodsk | (07h 32m 22.14s , +86d 56m 57.5s) |   C |    60 | 19.2 |        
   33229 | 2023-12-21 01:23:36 |   MASTER-Kislovodsk | (05h 23m 33.48s , +77d 30m 02.0s) |   C |    60 | 19.0 |        
   33311 | 2023-12-21 01:24:58 |   MASTER-Kislovodsk | (07h 35m 30.16s , +85d 07m 17.8s) |   C |    60 | 19.0 |        
   33392 | 2023-12-21 01:26:18 |   MASTER-Kislovodsk | (07h 38m 50.21s , +81d 21m 30.0s) |   C |    60 | 19.0 |        
   34206 | 2023-12-21 01:39:53 |   MASTER-Kislovodsk | (05h 23m 39.32s , +77d 28m 15.3s) |   C |    60 | 19.0 |        
   34288 | 2023-12-21 01:41:15 |   MASTER-Kislovodsk | (05h 24m 20.93s , +77d 28m 16.7s) |   C |    60 | 14.8 |        
   34376 | 2023-12-21 01:42:43 |   MASTER-Kislovodsk | (05h 25m 57.11s , +77d 28m 19.9s) |   C |    60 | 14.9 |        
   34625 | 2023-12-21 01:46:52 |   MASTER-Kislovodsk | (07h 31m 27.70s , +86d 56m 13.7s) |   C |    60 | 19.3 |        
   96573 | 2023-12-21 18:59:20 |   MASTER-Kislovodsk | (05h 15m 31.78s , +80d 48m 20.3s) |   C |    60 | 18.3 |        
   96655 | 2023-12-21 19:00:42 |   MASTER-Kislovodsk | (05h 16m 10.63s , +80d 48m 21.6s) |   C |    60 | 14.7 |        
   98718 | 2023-12-21 19:35:05 |        MASTER-Tunka | (05h 28m 09.70s , +83d 06m 35.4s) |   C |    60 | 19.8 |        
   98796 | 2023-12-21 19:36:23 |        MASTER-Tunka | (06h 34m 42.69s , +83d 07m 05.2s) |   C |    60 | 19.8 |        
   98878 | 2023-12-21 19:37:45 |        MASTER-Tunka | (03h 23m 01.58s , +82d 59m 53.1s) |   C |    60 | 19.9 |        
   98954 | 2023-12-21 19:39:00 |        MASTER-Tunka | (04h 28m 37.01s , +83d 04m 31.1s) |   C |    60 | 19.8 |        
   99027 | 2023-12-21 19:40:14 |        MASTER-Tunka | (04h 53m 48.54s , +79d 17m 26.5s) |   C |    60 | 20.0 |        
   99101 | 2023-12-21 19:41:28 |        MASTER-Tunka | (05h 36m 39.61s , +79d 18m 07.3s) |   C |    60 | 20.0 |        
   99175 | 2023-12-21 19:42:42 |        MASTER-Tunka | (04h 38m 51.71s , +84d 57m 57.6s) |   C |    60 | 20.0 |        
   99338 | 2023-12-21 19:45:25 |        MASTER-Tunka | (06h 09m 55.07s , +84d 59m 54.6s) |   C |    60 | 19.9 |        
   99659 | 2023-12-21 19:50:46 |        MASTER-Tunka | (05h 27m 52.83s , +83d 05m 54.5s) |   C |    60 | 19.3 |        
  151164 | 2023-12-22 10:09:11 |        MASTER-Tunka | (05h 17m 01.24s , +80d 47m 48.0s) |   C |    60 | 15.2 |  Coadd 
  151280 | 2023-12-22 10:11:07 |        MASTER-Tunka | (06h 02m 20.83s , +80d 48m 32.0s) |   C |    60 | 15.2 |  Coadd 
  151395 | 2023-12-22 10:13:02 |        MASTER-Tunka | (06h 52m 35.62s , +80d 48m 49.8s) |   C |    60 | 15.5 |  Coadd 
  151511 | 2023-12-22 10:14:58 |        MASTER-Tunka | (03h 41m 11.92s , +78d 54m 20.3s) |   C |    60 | 15.2 |  Coadd 
  151627 | 2023-12-22 10:16:54 |        MASTER-Tunka | (04h 22m 48.02s , +78d 52m 53.6s) |   C |    60 | 15.5 |  Coadd 
  152141 | 2023-12-22 10:25:28 |        MASTER-Tunka | (07h 01m 35.08s , +78d 54m 30.1s) |   C |    60 | 15.4 |  Coadd 
  152454 | 2023-12-22 10:30:41 |        MASTER-Tunka | (05h 17m 17.85s , +80d 49m 09.0s) |   C |    60 | 15.8 |  Coadd 
  152769 | 2023-12-22 10:35:56 |        MASTER-Tunka | (06h 02m 47.06s , +80d 48m 30.3s) |   C |    60 | 13.4 |        
  153647 | 2023-12-22 10:50:34 |        MASTER-Tunka | (06h 53m 20.86s , +80d 50m 29.1s) |   C |    60 | 13.5 |        
  153729 | 2023-12-22 10:51:56 |        MASTER-Tunka | (03h 41m 23.35s , +78d 56m 16.2s) |   C |    60 | 15.2 |        
  153802 | 2023-12-22 10:53:09 |        MASTER-Tunka | (04h 23m 05.16s , +78d 54m 37.5s) |   C |    60 | 15.5 |        
  153879 | 2023-12-22 10:54:26 |        MASTER-Tunka | (06h 20m 16.43s , +78d 54m 27.1s) |   C |    60 | 13.5 |        
  153956 | 2023-12-22 10:55:43 |        MASTER-Tunka | (07h 02m 02.88s , +78d 56m 47.1s) |   C |    60 | 13.3 |        
  154224 | 2023-12-22 11:00:11 |        MASTER-Tunka | (04h 27m 23.43s , +80d 50m 34.2s) |   C |    60 | 14.2 |        
  154615 | 2023-12-22 11:06:42 |        MASTER-Tunka | (05h 17m 44.91s , +80d 50m 35.2s) |   C |    60 | 13.3 |        
  154688 | 2023-12-22 11:07:55 |        MASTER-Tunka | (06h 03m 12.87s , +80d 49m 34.3s) |   C |    60 | 13.3 |        
  154761 | 2023-12-22 11:09:08 |        MASTER-Tunka | (06h 53m 36.61s , +80d 48m 59.7s) |   C |    60 | 13.2 |        
  154909 | 2023-12-22 11:11:36 |        MASTER-Tunka | (04h 23m 15.80s , +78d 57m 05.4s) |   C |    60 | 14.4 |        
  154989 | 2023-12-22 11:12:56 |        MASTER-Tunka | (06h 20m 25.49s , +78d 54m 59.8s) |   C |    60 | 13.4 |        
  155370 | 2023-12-22 11:19:17 |        MASTER-Tunka | (07h 38m 25.91s , +84d 38m 40.4s) |   C |    60 | 13.4 |        
  155540 | 2023-12-22 11:22:07 |        MASTER-Tunka | (03h 24m 00.47s , +86d 35m 09.8s) |   C |    60 | 15.7 |        
  155622 | 2023-12-22 11:23:29 |        MASTER-Tunka | (05h 37m 48.71s , +86d 31m 33.1s) |   C |    60 | 15.4 |        
  155704 | 2023-12-22 11:24:51 |        MASTER-Tunka | (02h 10m 06.03s , +84d 42m 37.9s) |   C |    60 | 15.9 |        
  155780 | 2023-12-22 11:26:07 |        MASTER-Tunka | (03h 36m 48.45s , +84d 41m 16.6s) |   C |    60 | 16.2 |        
  155857 | 2023-12-22 11:27:23 |        MASTER-Tunka | (02h 51m 18.15s , +80d 52m 33.3s) |   C |    60 | 14.6 |        
  155930 | 2023-12-22 11:28:37 |        MASTER-Tunka | (03h 42m 00.29s , +80d 51m 30.6s) |   C |    60 | 14.4 |        
  156016 | 2023-12-22 11:30:03 |        MASTER-Tunka | (07h 39m 27.37s , +80d 50m 39.7s) |   C |    60 | 13.5 |        
  156412 | 2023-12-22 11:36:39 |        MASTER-Tunka | (07h 38m 52.01s , +84d 40m 01.2s) |   C |    60 | 13.5 |        
  156860 | 2023-12-22 11:44:07 |        MASTER-Tunka | (03h 24m 03.12s , +86d 36m 20.7s) |   C |    60 | 18.7 |  Coadd 
  156928 | 2023-12-22 11:45:15 |        MASTER-Tunka | (05h 38m 34.80s , +86d 33m 09.3s) |   C |    60 | 18.6 |  Coadd 
  156997 | 2023-12-22 11:46:24 |        MASTER-Tunka | (02h 09m 54.09s , +84d 42m 41.4s) |   C |    60 | 18.5 |  Coadd 
  157065 | 2023-12-22 11:47:32 |        MASTER-Tunka | (03h 36m 57.19s , +84d 40m 35.8s) |   C |    60 | 19.5 |  Coadd 
  157145 | 2023-12-22 11:48:52 |        MASTER-Tunka | (02h 51m 19.96s , +80d 55m 12.6s) |   C |    60 | 18.5 |  Coadd 
  157218 | 2023-12-22 11:50:05 |        MASTER-Tunka | (03h 42m 00.47s , +80d 52m 29.5s) |   C |    60 | 18.5 |  Coadd 
  157286 | 2023-12-22 11:51:13 |        MASTER-Tunka | (07h 39m 50.31s , +80d 52m 38.2s) |   C |    60 | 18.6 |  Coadd 
  157423 | 2023-12-22 11:53:30 |        MASTER-Tunka | (07h 39m 22.28s , +84d 40m 44.4s) |   C |    60 | 18.6 |  Coadd 
  157560 | 2023-12-22 11:55:47 |        MASTER-Tunka | (05h 25m 19.42s , +77d 03m 21.9s) |   C |    60 | 18.6 |  Coadd 
  157629 | 2023-12-22 11:56:55 |        MASTER-Tunka | (06h 01m 06.85s , +77d 04m 43.7s) |   C |    60 | 18.6 |  Coadd 
  157697 | 2023-12-22 11:58:04 |        MASTER-Tunka | (07h 39m 36.63s , +82d 46m 31.8s) |   C |    60 | 18.6 |  Coadd 
  157833 | 2023-12-22 12:00:20 |        MASTER-Tunka | (03h 24m 08.22s , +86d 37m 19.9s) |   C |    60 | 18.9 |  Coadd 
  157901 | 2023-12-22 12:01:28 |        MASTER-Tunka | (05h 39m 05.06s , +86d 33m 59.1s) |   C |    60 | 19.0 |  Coadd 
  157970 | 2023-12-22 12:02:37 |        MASTER-Tunka | (02h 09m 44.12s , +84d 43m 33.0s) |   C |    60 | 18.7 |  Coadd 
  158038 | 2023-12-22 12:03:45 |        MASTER-Tunka | (03h 36m 58.45s , +84d 41m 22.1s) |   C |    60 | 18.7 |  Coadd 
  158106 | 2023-12-22 12:04:53 |        MASTER-Tunka | (02h 51m 17.15s , +80d 56m 31.1s) |   C |    60 | 19.1 |  Coadd 
  158175 | 2023-12-22 12:06:02 |        MASTER-Tunka | (03h 42m 01.26s , +80d 53m 29.3s) |   C |    60 | 18.7 |  Coadd 
  158243 | 2023-12-22 12:07:10 |        MASTER-Tunka | (07h 40m 07.17s , +80d 52m 57.6s) |   C |    60 | 18.6 |  Coadd 
  158379 | 2023-12-22 12:09:26 |        MASTER-Tunka | (07h 40m 45.33s , +86d 34m 07.8s) |   C |    60 | 18.8 |  Coadd 
  158516 | 2023-12-22 12:11:43 |        MASTER-Tunka | (05h 25m 24.71s , +77d 03m 50.0s) |   C |    60 | 18.5 |  Coadd 
  158584 | 2023-12-22 12:12:51 |        MASTER-Tunka | (06h 01m 13.67s , +77d 05m 05.4s) |   C |    60 | 18.5 |  Coadd 
  158653 | 2023-12-22 12:14:00 |        MASTER-Tunka | (07h 39m 52.53s , +82d 45m 20.0s) |   C |    60 | 18.5 |  Coadd 
  158820 | 2023-12-22 12:16:46 |        MASTER-Tunka | (04h 17m 08.54s , +77d 07m 07.0s) |   C |    60 | 18.4 |  Coadd 
  158888 | 2023-12-22 12:17:55 |        MASTER-Tunka | (04h 53m 07.54s , +77d 05m 31.3s) |   C |    60 | 18.5 |  Coadd 
  159230 | 2023-12-22 12:23:37 |        MASTER-Tunka | (01h 34m 35.97s , +82d 52m 29.5s) |   C |    60 | 18.7 |  Coadd 
  159298 | 2023-12-22 12:24:45 |        MASTER-Tunka | (02h 38m 54.40s , +82d 49m 49.9s) |   C |    60 | 18.6 |  Coadd 
  159503 | 2023-12-22 12:28:10 |        MASTER-Tunka | (05h 25m 24.95s , +77d 04m 36.1s) |   C |    60 | 18.6 |  Coadd 
  159572 | 2023-12-22 12:29:18 |        MASTER-Tunka | (06h 01m 23.29s , +77d 05m 55.2s) |   C |    60 | 18.5 |  Coadd 
  159640 | 2023-12-22 12:30:27 |        MASTER-Tunka | (07h 40m 07.84s , +82d 46m 47.1s) |   C |    60 | 18.6 |  Coadd 
  159776 | 2023-12-22 12:32:43 |        MASTER-Tunka | (04h 17m 14.13s , +77d 06m 58.5s) |   C |    60 | 17.6 |  Coadd 
  159844 | 2023-12-22 12:33:51 |        MASTER-Tunka | (04h 53m 03.57s , +77d 05m 21.1s) |   C |    60 | 17.5 |  Coadd 
  160258 | 2023-12-22 12:40:45 |        MASTER-Tunka | (02h 33m 32.32s , +82d 54m 11.1s) |   C |    60 | 17.5 |  Coadd 
  160326 | 2023-12-22 12:41:53 |        MASTER-Tunka | (07h 41m 56.54s , +86d 34m 39.8s) |   C |    60 | 17.6 |  Coadd 
  160531 | 2023-12-22 12:45:18 |        MASTER-Tunka | (03h 03m 24.25s , +79d 02m 15.0s) |   C |    60 | 17.5 |  Coadd 
  160668 | 2023-12-22 12:47:35 |        MASTER-Tunka | (03h 44m 42.46s , +77d 09m 26.3s) |   C |    60 | 17.5 |  Coadd 
  160736 | 2023-12-22 12:48:43 |        MASTER-Tunka | (04h 17m 10.59s , +77d 07m 51.6s) |   C |    60 | 17.6 |  Coadd 
  160804 | 2023-12-22 12:49:51 |        MASTER-Tunka | (04h 53m 01.02s , +77d 06m 16.5s) |   C |    60 | 17.5 |  Coadd 
  161218 | 2023-12-22 12:56:45 |        MASTER-Tunka | (02h 33m 20.63s , +82d 54m 56.3s) |   C |    60 | 17.7 |  Coadd 
  161492 | 2023-12-22 13:01:19 |        MASTER-Tunka | (03h 03m 18.14s , +79d 03m 22.7s) |   C |    60 | 17.8 |  Coadd 
  161628 | 2023-12-22 13:03:35 |        MASTER-Tunka | (03h 44m 38.59s , +77d 09m 16.9s) |   C |    60 | 17.7 |  Coadd 
  162183 | 2023-12-22 13:12:50 |        MASTER-Tunka | (02h 00m 40.19s , +81d 00m 28.9s) |   C |    60 | 17.7 |  Coadd 
  162633 | 2023-12-22 13:20:20 |        MASTER-Tunka | (03h 03m 13.65s , +79d 04m 25.6s) |   C |    60 | 18.5 |  Coadd 
  162769 | 2023-12-22 13:22:36 |        MASTER-Tunka | (03h 44m 36.24s , +77d 09m 40.0s) |   C |    60 | 18.5 |  Coadd 
  163316 | 2023-12-22 13:31:43 |        MASTER-Tunka | (02h 00m 20.55s , +81d 01m 10.1s) |   C |    60 | 18.5 |  Coadd 
  164279 | 2023-12-22 13:47:46 |        MASTER-Tunka | (02h 00m 07.48s , +81d 01m 58.8s) |   C |    60 | 18.6 |  Coadd 
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9461
TYPE = 35
DAYS = 1


MASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the FERMI GRB231220.67 (trigger No 724781422,04h 54m 36.00s , +82d 24m 36.0s, R=4.31) errorbox  47 sec after notice time and 81 sec after trigger time at 2023-12-20 16:11:39 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -60.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the FERMI GRB231220.67 errorbox  111 sec after notice time and 146 sec after trigger time at 2023-12-20 16:12:43 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -27.3 deg. 

The galactic latitude b = 24 deg., longitude l = 130 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2338284

We obtain a following upper limits.  

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

      92 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    20 | 18.9 |        
     117 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    70 | 19.6 |  Coadd 
     177 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 38.02s , +82d 29m 18.3s) |   C |   190 | 19.5 |  Coadd 
     116 | 2023-12-20 16:12:03 |        MASTER-Tunka | (04h 50m 37.58s , +82d 29m 18.9s) |   C |    20 | 19.0 |        
     145 | 2023-12-20 16:12:27 |        MASTER-Tunka | (04h 50m 37.01s , +82d 29m 20.5s) |   C |    30 | 19.2 |        
     161 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.17s , +82d 05m 38.2s) |   C |    30 | 18.4 |        
     206 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.18s , +82d 05m 38.2s) |   C |   120 | 19.4 |  Coadd 
     391 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.15s , +82d 05m 38.2s) |   C |   490 | 19.4 |  Coadd 
     179 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.68s , +82d 29m 21.6s) |   C |    30 | 19.2 |        
     224 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.71s , +82d 29m 21.6s) |   C |   120 | 19.1 |  Coadd 
     216 | 2023-12-20 16:13:33 |   MASTER-Kislovodsk | (05h 23m 55.20s , +82d 06m 40.5s) |   C |    40 | 18.8 |        
     218 | 2023-12-20 16:13:34 |        MASTER-Tunka | (04h 50m 35.94s , +82d 29m 23.3s) |   C |    40 | 18.3 |        
     266 | 2023-12-20 16:14:18 |        MASTER-Tunka | (04h 50m 35.30s , +82d 29m 25.3s) |   C |    50 | 18.4 |        
     283 | 2023-12-20 16:14:35 |   MASTER-Kislovodsk | (05h 23m 57.88s , +82d 05m 45.2s) |   C |    50 | 19.0 |        
     326 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.17s , +82d 29m 28.2s) |   C |    60 | 18.5 |        
     386 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.19s , +82d 29m 28.2s) |   C |   180 | 12.4 |  Coadd 
     360 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.33s , +82d 04m 49.1s) |   C |    60 | 19.0 |        
     515 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.29s , +82d 04m 49.1s) |   C |   370 | 19.6 |  Coadd 
     390 | 2023-12-20 16:16:16 |        MASTER-Tunka | (04h 50m 33.23s , +82d 29m 30.4s) |   C |    60 | 18.5 |        
     599 | 2023-12-20 16:19:46 |        MASTER-Tunka | (04h 49m 16.45s , +82d 24m 30.5s) |   C |    60 | 18.6 |        
     663 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.45s , +82d 24m 32.6s) |   C |    60 | 18.8 |        
     723 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.47s , +82d 24m 32.5s) |   C |   180 | 19.3 |  Coadd 
     727 | 2023-12-20 16:21:54 |        MASTER-Tunka | (04h 49m 14.41s , +82d 24m 34.9s) |   C |    60 | 18.8 |        
     777 | 2023-12-20 16:22:04 |   MASTER-Kislovodsk | (05h 22m 17.38s , +81d 58m 31.2s) |   C |   140 | 19.2 |        
     791 | 2023-12-20 16:22:58 |        MASTER-Tunka | (04h 49m 13.31s , +82d 24m 37.6s) |   C |    60 | 18.8 |        
     953 | 2023-12-20 16:24:45 |   MASTER-Kislovodsk | (05h 22m 25.64s , +81d 59m 51.5s) |   C |   170 | 19.3 |        
    1149 | 2023-12-20 16:27:56 |   MASTER-Kislovodsk | (05h 22m 17.42s , +81d 59m 23.7s) |   C |   180 | 19.4 |        
    1291 | 2023-12-20 16:31:18 |   MASTER-Kislovodsk | (04h 54m 53.65s , +82d 03m 55.3s) |   C |    60 | 15.0 |        
    2595 | 2023-12-20 16:53:02 |   MASTER-Kislovodsk | (04h 36m 40.50s , +82d 37m 42.1s) |   C |    60 | 18.4 |        
    2675 | 2023-12-20 16:54:22 |   MASTER-Kislovodsk | (06h 40m 35.82s , +82d 35m 35.2s) |   C |    60 | 18.5 |        
    2757 | 2023-12-20 16:55:44 |   MASTER-Kislovodsk | (06h 17m 17.19s , +84d 28m 19.6s) |   C |    60 | 18.6 |        
    2839 | 2023-12-20 16:57:05 |   MASTER-Kislovodsk | (05h 42m 20.32s , +78d 51m 06.7s) |   C |    60 | 18.8 |        
    2921 | 2023-12-20 16:58:28 |   MASTER-Kislovodsk | (05h 42m 52.38s , +78d 51m 07.7s) |   C |    60 | 14.8 |        
    3001 | 2023-12-20 16:59:48 |   MASTER-Kislovodsk | (05h 44m 09.29s , +78d 51m 11.1s) |   C |    60 | 14.8 |        
    3082 | 2023-12-20 17:01:09 |   MASTER-Kislovodsk | (03h 38m 32.79s , +80d 46m 42.5s) |   C |    60 | 18.5 |        
    3163 | 2023-12-20 17:02:29 |   MASTER-Kislovodsk | (03h 28m 26.96s , +84d 34m 57.7s) |   C |    60 | 18.6 |        
    3244 | 2023-12-20 17:03:51 |   MASTER-Kislovodsk | (05h 26m 07.87s , +86d 21m 38.1s) |   C |    60 | 18.7 |        
    3324 | 2023-12-20 17:05:11 |   MASTER-Kislovodsk | (07h 02m 56.70s , +78d 48m 04.5s) |   C |    60 | 18.6 |        
    3406 | 2023-12-20 17:06:32 |   MASTER-Kislovodsk | (04h 51m 59.60s , +76d 58m 32.8s) |   C |    60 | 18.6 |        
    4959 | 2023-12-20 17:32:26 |   MASTER-Kislovodsk | (05h 16m 05.81s , +80d 44m 30.6s) |   C |    60 | 18.7 |        
    5040 | 2023-12-20 17:33:47 |   MASTER-Kislovodsk | (04h 36m 36.25s , +82d 40m 42.7s) |   C |    60 | 18.5 |        
    5834 | 2023-12-20 17:47:01 |        MASTER-Tunka | (07h 41m 29.86s , +81d 06m 29.2s) |   C |    60 | 19.1 |        
    6492 | 2023-12-20 17:57:58 |   MASTER-Kislovodsk | (06h 16m 52.32s , +84d 31m 13.1s) |   C |    60 | 18.6 |        
    6574 | 2023-12-20 17:59:21 |   MASTER-Kislovodsk | (05h 42m 02.72s , +78d 51m 42.5s) |   C |    60 | 18.8 |        
    6654 | 2023-12-20 18:00:41 |   MASTER-Kislovodsk | (06h 53m 30.74s , +80d 42m 02.0s) |   C |    60 | 19.1 |        
    6736 | 2023-12-20 18:02:03 |   MASTER-Kislovodsk | (04h 21m 11.35s , +78d 53m 30.1s) |   C |    60 | 18.6 |        
    6788 | 2023-12-20 18:02:55 |        MASTER-Tunka | (07h 41m 24.50s , +81d 07m 43.1s) |   C |    60 | 18.8 |        
    6816 | 2023-12-20 18:03:23 |   MASTER-Kislovodsk | (04h 22m 08.01s , +78d 53m 39.7s) |   C |    60 | 15.3 |        
    6899 | 2023-12-20 18:04:46 |   MASTER-Kislovodsk | (04h 23m 20.71s , +78d 53m 44.8s) |   C |    60 | 15.0 |        
    6981 | 2023-12-20 18:06:08 |   MASTER-Kislovodsk | (05h 26m 38.44s , +86d 25m 37.0s) |   C |    60 | 18.9 |        
    7061 | 2023-12-20 18:07:28 |   MASTER-Kislovodsk | (07h 02m 44.00s , +78d 49m 53.0s) |   C |    60 | 19.0 |        
    7143 | 2023-12-20 18:08:50 |   MASTER-Kislovodsk | (04h 51m 42.18s , +77d 01m 10.5s) |   C |    60 | 18.7 |        
   16927 | 2023-12-20 20:51:54 |        MASTER-Tunka | (07h 34m 49.32s , +81d 16m 39.7s) |   C |    60 | 19.2 |        
   32300 | 2023-12-21 01:08:07 |   MASTER-Kislovodsk | (05h 23m 37.18s , +77d 31m 38.9s) |   C |    60 | 18.9 |        
   32382 | 2023-12-21 01:09:29 |   MASTER-Kislovodsk | (05h 24m 16.31s , +77d 31m 39.7s) |   C |    60 | 14.9 |        
   32462 | 2023-12-21 01:10:49 |   MASTER-Kislovodsk | (05h 25m 32.60s , +77d 31m 41.4s) |   C |    60 | 14.9 |        
   32719 | 2023-12-21 01:15:06 |   MASTER-Kislovodsk | (07h 32m 22.14s , +86d 56m 57.5s) |   C |    60 | 19.2 |        
   33229 | 2023-12-21 01:23:36 |   MASTER-Kislovodsk | (05h 23m 33.48s , +77d 30m 02.0s) |   C |    60 | 19.0 |        
   33311 | 2023-12-21 01:24:58 |   MASTER-Kislovodsk | (07h 35m 30.16s , +85d 07m 17.8s) |   C |    60 | 19.0 |        
   33392 | 2023-12-21 01:26:18 |   MASTER-Kislovodsk | (07h 38m 50.21s , +81d 21m 30.0s) |   C |    60 | 19.0 |        
   34206 | 2023-12-21 01:39:53 |   MASTER-Kislovodsk | (05h 23m 39.32s , +77d 28m 15.3s) |   C |    60 | 19.0 |        
   34288 | 2023-12-21 01:41:15 |   MASTER-Kislovodsk | (05h 24m 20.93s , +77d 28m 16.7s) |   C |    60 | 14.8 |        
   34376 | 2023-12-21 01:42:43 |   MASTER-Kislovodsk | (05h 25m 57.11s , +77d 28m 19.9s) |   C |    60 | 14.9 |        
   34625 | 2023-12-21 01:46:52 |   MASTER-Kislovodsk | (07h 31m 27.70s , +86d 56m 13.7s) |   C |    60 | 19.3 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9460
TYPE = 35
DAYS = 0


MASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the FERMI GRB231220.67 (trigger No 724781422,04h 53m 28.80s , +82d 17m 24.0s, R=5.04) errorbox  47 sec after notice time and 81 sec after trigger time at 2023-12-20 16:11:39 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -60.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the FERMI GRB231220.67 errorbox  111 sec after notice time and 146 sec after trigger time at 2023-12-20 16:12:43 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -27.3 deg. 

The galactic latitude b = 23 deg., longitude l = 130 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2338295

We obtain a following upper limits.  

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

      92 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    20 | 18.9 |        
     117 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    70 | 19.6 |  Coadd 
     177 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 38.02s , +82d 29m 18.3s) |   C |   190 | 19.5 |  Coadd 
     116 | 2023-12-20 16:12:03 |        MASTER-Tunka | (04h 50m 37.58s , +82d 29m 18.9s) |   C |    20 | 19.0 |        
     145 | 2023-12-20 16:12:27 |        MASTER-Tunka | (04h 50m 37.01s , +82d 29m 20.5s) |   C |    30 | 19.2 |        
     161 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.17s , +82d 05m 38.2s) |   C |    30 | 18.4 |        
     206 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.18s , +82d 05m 38.2s) |   C |   120 | 19.4 |  Coadd 
     391 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.15s , +82d 05m 38.2s) |   C |   490 | 19.4 |  Coadd 
     179 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.68s , +82d 29m 21.6s) |   C |    30 | 19.2 |        
     224 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.71s , +82d 29m 21.6s) |   C |   120 | 19.1 |  Coadd 
     216 | 2023-12-20 16:13:33 |   MASTER-Kislovodsk | (05h 23m 55.20s , +82d 06m 40.5s) |   C |    40 | 18.8 |        
     218 | 2023-12-20 16:13:34 |        MASTER-Tunka | (04h 50m 35.94s , +82d 29m 23.3s) |   C |    40 | 18.3 |        
     266 | 2023-12-20 16:14:18 |        MASTER-Tunka | (04h 50m 35.30s , +82d 29m 25.3s) |   C |    50 | 18.4 |        
     283 | 2023-12-20 16:14:35 |   MASTER-Kislovodsk | (05h 23m 57.88s , +82d 05m 45.2s) |   C |    50 | 19.0 |        
     326 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.17s , +82d 29m 28.2s) |   C |    60 | 18.5 |        
     386 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.19s , +82d 29m 28.2s) |   C |   180 | 12.4 |  Coadd 
     360 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.33s , +82d 04m 49.1s) |   C |    60 | 19.0 |        
     515 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.29s , +82d 04m 49.1s) |   C |   370 | 19.6 |  Coadd 
     390 | 2023-12-20 16:16:16 |        MASTER-Tunka | (04h 50m 33.23s , +82d 29m 30.4s) |   C |    60 | 18.5 |        
     599 | 2023-12-20 16:19:46 |        MASTER-Tunka | (04h 49m 16.45s , +82d 24m 30.5s) |   C |    60 | 18.6 |        
     663 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.45s , +82d 24m 32.6s) |   C |    60 | 18.8 |        
     723 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.47s , +82d 24m 32.5s) |   C |   180 | 19.3 |  Coadd 
     727 | 2023-12-20 16:21:54 |        MASTER-Tunka | (04h 49m 14.41s , +82d 24m 34.9s) |   C |    60 | 18.8 |        
     777 | 2023-12-20 16:22:04 |   MASTER-Kislovodsk | (05h 22m 17.38s , +81d 58m 31.2s) |   C |   140 | 19.2 |        
     791 | 2023-12-20 16:22:58 |        MASTER-Tunka | (04h 49m 13.31s , +82d 24m 37.6s) |   C |    60 | 18.8 |        
     953 | 2023-12-20 16:24:45 |   MASTER-Kislovodsk | (05h 22m 25.64s , +81d 59m 51.5s) |   C |   170 | 19.3 |        
    1149 | 2023-12-20 16:27:56 |   MASTER-Kislovodsk | (05h 22m 17.42s , +81d 59m 23.7s) |   C |   180 | 19.4 |        
    1291 | 2023-12-20 16:31:18 |   MASTER-Kislovodsk | (04h 54m 53.65s , +82d 03m 55.3s) |   C |    60 | 15.0 |        
    2595 | 2023-12-20 16:53:02 |   MASTER-Kislovodsk | (04h 36m 40.50s , +82d 37m 42.1s) |   C |    60 | 18.4 |        
    2675 | 2023-12-20 16:54:22 |   MASTER-Kislovodsk | (06h 40m 35.82s , +82d 35m 35.2s) |   C |    60 | 18.5 |        
    2757 | 2023-12-20 16:55:44 |   MASTER-Kislovodsk | (06h 17m 17.19s , +84d 28m 19.6s) |   C |    60 | 18.6 |        
    2839 | 2023-12-20 16:57:05 |   MASTER-Kislovodsk | (05h 42m 20.32s , +78d 51m 06.7s) |   C |    60 | 18.8 |        
    2921 | 2023-12-20 16:58:28 |   MASTER-Kislovodsk | (05h 42m 52.38s , +78d 51m 07.7s) |   C |    60 | 14.8 |        
    3001 | 2023-12-20 16:59:48 |   MASTER-Kislovodsk | (05h 44m 09.29s , +78d 51m 11.1s) |   C |    60 | 14.8 |        
    3082 | 2023-12-20 17:01:09 |   MASTER-Kislovodsk | (03h 38m 32.79s , +80d 46m 42.5s) |   C |    60 | 18.5 |        
    3163 | 2023-12-20 17:02:29 |   MASTER-Kislovodsk | (03h 28m 26.96s , +84d 34m 57.7s) |   C |    60 | 18.6 |        
    3244 | 2023-12-20 17:03:51 |   MASTER-Kislovodsk | (05h 26m 07.87s , +86d 21m 38.1s) |   C |    60 | 18.7 |        
    3324 | 2023-12-20 17:05:11 |   MASTER-Kislovodsk | (07h 02m 56.70s , +78d 48m 04.5s) |   C |    60 | 18.6 |        
    3406 | 2023-12-20 17:06:32 |   MASTER-Kislovodsk | (04h 51m 59.60s , +76d 58m 32.8s) |   C |    60 | 18.6 |        
    4959 | 2023-12-20 17:32:26 |   MASTER-Kislovodsk | (05h 16m 05.81s , +80d 44m 30.6s) |   C |    60 | 18.7 |        
    5040 | 2023-12-20 17:33:47 |   MASTER-Kislovodsk | (04h 36m 36.25s , +82d 40m 42.7s) |   C |    60 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9459
TYPE = 35
DAYS = 0


MASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the FERMI GRB231220.67 (trigger No 724781422,04h 53m 28.80s , +82d 17m 24.0s, R=5.04) errorbox  47 sec after notice time and 81 sec after trigger time at 2023-12-20 16:11:39 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -60.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the FERMI GRB231220.67 errorbox  111 sec after notice time and 146 sec after trigger time at 2023-12-20 16:12:43 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -27.3 deg. 

The galactic latitude b = 23 deg., longitude l = 130 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2338295

We obtain a following upper limits.  

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

      92 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    20 | 18.9 |        
     117 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    70 | 19.6 |  Coadd 
     177 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 38.02s , +82d 29m 18.3s) |   C |   190 | 19.5 |  Coadd 
     116 | 2023-12-20 16:12:03 |        MASTER-Tunka | (04h 50m 37.58s , +82d 29m 18.9s) |   C |    20 | 19.0 |        
     145 | 2023-12-20 16:12:27 |        MASTER-Tunka | (04h 50m 37.01s , +82d 29m 20.5s) |   C |    30 | 19.2 |        
     161 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.17s , +82d 05m 38.2s) |   C |    30 | 18.4 |        
     206 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.18s , +82d 05m 38.2s) |   C |   120 | 19.4 |  Coadd 
     391 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.15s , +82d 05m 38.2s) |   C |   490 | 19.4 |  Coadd 
     179 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.68s , +82d 29m 21.6s) |   C |    30 | 19.2 |        
     224 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.71s , +82d 29m 21.6s) |   C |   120 | 19.1 |  Coadd 
     216 | 2023-12-20 16:13:33 |   MASTER-Kislovodsk | (05h 23m 55.20s , +82d 06m 40.5s) |   C |    40 | 18.8 |        
     218 | 2023-12-20 16:13:34 |        MASTER-Tunka | (04h 50m 35.94s , +82d 29m 23.3s) |   C |    40 | 18.3 |        
     266 | 2023-12-20 16:14:18 |        MASTER-Tunka | (04h 50m 35.30s , +82d 29m 25.3s) |   C |    50 | 18.4 |        
     283 | 2023-12-20 16:14:35 |   MASTER-Kislovodsk | (05h 23m 57.88s , +82d 05m 45.2s) |   C |    50 | 19.0 |        
     326 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.17s , +82d 29m 28.2s) |   C |    60 | 18.5 |        
     386 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.19s , +82d 29m 28.2s) |   C |   180 | 12.4 |  Coadd 
     360 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.33s , +82d 04m 49.1s) |   C |    60 | 19.0 |        
     515 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.29s , +82d 04m 49.1s) |   C |   370 | 19.6 |  Coadd 
     390 | 2023-12-20 16:16:16 |        MASTER-Tunka | (04h 50m 33.23s , +82d 29m 30.4s) |   C |    60 | 18.5 |        
     599 | 2023-12-20 16:19:46 |        MASTER-Tunka | (04h 49m 16.45s , +82d 24m 30.5s) |   C |    60 | 18.6 |        
     663 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.45s , +82d 24m 32.6s) |   C |    60 | 18.8 |        
     723 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.47s , +82d 24m 32.5s) |   C |   180 | 19.3 |  Coadd 
     727 | 2023-12-20 16:21:54 |        MASTER-Tunka | (04h 49m 14.41s , +82d 24m 34.9s) |   C |    60 | 18.8 |        
     777 | 2023-12-20 16:22:04 |   MASTER-Kislovodsk | (05h 22m 17.38s , +81d 58m 31.2s) |   C |   140 | 19.2 |        
     791 | 2023-12-20 16:22:58 |        MASTER-Tunka | (04h 49m 13.31s , +82d 24m 37.6s) |   C |    60 | 18.8 |        
     953 | 2023-12-20 16:24:45 |   MASTER-Kislovodsk | (05h 22m 25.64s , +81d 59m 51.5s) |   C |   170 | 19.3 |        
    1149 | 2023-12-20 16:27:56 |   MASTER-Kislovodsk | (05h 22m 17.42s , +81d 59m 23.7s) |   C |   180 | 19.4 |        
    1291 | 2023-12-20 16:31:18 |   MASTER-Kislovodsk | (04h 54m 53.65s , +82d 03m 55.3s) |   C |    60 | 15.0 |        
    2595 | 2023-12-20 16:53:02 |   MASTER-Kislovodsk | (04h 36m 40.50s , +82d 37m 42.1s) |   C |    60 | 18.4 |        
    2675 | 2023-12-20 16:54:22 |   MASTER-Kislovodsk | (06h 40m 35.82s , +82d 35m 35.2s) |   C |    60 | 18.5 |        
    2757 | 2023-12-20 16:55:44 |   MASTER-Kislovodsk | (06h 17m 17.19s , +84d 28m 19.6s) |   C |    60 | 18.6 |        
    2839 | 2023-12-20 16:57:05 |   MASTER-Kislovodsk | (05h 42m 20.32s , +78d 51m 06.7s) |   C |    60 | 18.8 |        
    2921 | 2023-12-20 16:58:28 |   MASTER-Kislovodsk | (05h 42m 52.38s , +78d 51m 07.7s) |   C |    60 | 14.8 |        
    3001 | 2023-12-20 16:59:48 |   MASTER-Kislovodsk | (05h 44m 09.29s , +78d 51m 11.1s) |   C |    60 | 14.8 |        
    3082 | 2023-12-20 17:01:09 |   MASTER-Kislovodsk | (03h 38m 32.79s , +80d 46m 42.5s) |   C |    60 | 18.5 |        
    3163 | 2023-12-20 17:02:29 |   MASTER-Kislovodsk | (03h 28m 26.96s , +84d 34m 57.7s) |   C |    60 | 18.6 |        
    3244 | 2023-12-20 17:03:51 |   MASTER-Kislovodsk | (05h 26m 07.87s , +86d 21m 38.1s) |   C |    60 | 18.7 |        
    3324 | 2023-12-20 17:05:11 |   MASTER-Kislovodsk | (07h 02m 56.70s , +78d 48m 04.5s) |   C |    60 | 18.6 |        
    3406 | 2023-12-20 17:06:32 |   MASTER-Kislovodsk | (04h 51m 59.60s , +76d 58m 32.8s) |   C |    60 | 18.6 |        
    4959 | 2023-12-20 17:32:26 |   MASTER-Kislovodsk | (05h 16m 05.81s , +80d 44m 30.6s) |   C |    60 | 18.7 |        
    5040 | 2023-12-20 17:33:47 |   MASTER-Kislovodsk | (04h 36m 36.25s , +82d 40m 42.7s) |   C |    60 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9458
TYPE = 34
DAYS = 0


MASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the FERMI GRB231220.67 (trigger No 724781422,04h 53m 28.80s , +82d 17m 24.0s, R=5.04) errorbox  47 sec after notice time and 81 sec after trigger time at 2023-12-20 16:11:39 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -60.6 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the FERMI GRB231220.67 errorbox  111 sec after notice time and 146 sec after trigger time at 2023-12-20 16:12:43 UT, with upper limit up to  19.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -27.3 deg. 

The galactic latitude b = 23 deg., longitude l = 130 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2338295

We obtain a following upper limits.  

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

      92 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    20 | 18.9 |        
     117 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 37.99s , +82d 29m 18.3s) |   C |    70 | 19.6 |  Coadd 
     177 | 2023-12-20 16:11:39 |        MASTER-Tunka | (04h 50m 38.02s , +82d 29m 18.3s) |   C |   190 | 19.5 |  Coadd 
     116 | 2023-12-20 16:12:03 |        MASTER-Tunka | (04h 50m 37.58s , +82d 29m 18.9s) |   C |    20 | 19.0 |        
     145 | 2023-12-20 16:12:27 |        MASTER-Tunka | (04h 50m 37.01s , +82d 29m 20.5s) |   C |    30 | 19.2 |        
     161 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.17s , +82d 05m 38.2s) |   C |    30 | 18.4 |        
     206 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.18s , +82d 05m 38.2s) |   C |   120 | 19.4 |  Coadd 
     391 | 2023-12-20 16:12:43 |   MASTER-Kislovodsk | (05h 23m 52.15s , +82d 05m 38.2s) |   C |   490 | 19.4 |  Coadd 
     179 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.68s , +82d 29m 21.6s) |   C |    30 | 19.2 |        
     224 | 2023-12-20 16:13:00 |        MASTER-Tunka | (04h 50m 36.71s , +82d 29m 21.6s) |   C |   120 | 19.1 |  Coadd 
     216 | 2023-12-20 16:13:33 |   MASTER-Kislovodsk | (05h 23m 55.20s , +82d 06m 40.5s) |   C |    40 | 18.8 |        
     218 | 2023-12-20 16:13:34 |        MASTER-Tunka | (04h 50m 35.94s , +82d 29m 23.3s) |   C |    40 | 18.3 |        
     266 | 2023-12-20 16:14:18 |        MASTER-Tunka | (04h 50m 35.30s , +82d 29m 25.3s) |   C |    50 | 18.4 |        
     283 | 2023-12-20 16:14:35 |   MASTER-Kislovodsk | (05h 23m 57.88s , +82d 05m 45.2s) |   C |    50 | 19.0 |        
     326 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.17s , +82d 29m 28.2s) |   C |    60 | 18.5 |        
     386 | 2023-12-20 16:15:13 |        MASTER-Tunka | (04h 50m 34.19s , +82d 29m 28.2s) |   C |   180 | 12.4 |  Coadd 
     360 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.33s , +82d 04m 49.1s) |   C |    60 | 19.0 |        
     515 | 2023-12-20 16:15:47 |   MASTER-Kislovodsk | (05h 23m 49.29s , +82d 04m 49.1s) |   C |   370 | 19.6 |  Coadd 
     390 | 2023-12-20 16:16:16 |        MASTER-Tunka | (04h 50m 33.23s , +82d 29m 30.4s) |   C |    60 | 18.5 |        
     599 | 2023-12-20 16:19:46 |        MASTER-Tunka | (04h 49m 16.45s , +82d 24m 30.5s) |   C |    60 | 18.6 |        
     663 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.45s , +82d 24m 32.6s) |   C |    60 | 18.8 |        
     723 | 2023-12-20 16:20:50 |        MASTER-Tunka | (04h 49m 15.47s , +82d 24m 32.5s) |   C |   180 | 19.3 |  Coadd 
     727 | 2023-12-20 16:21:54 |        MASTER-Tunka | (04h 49m 14.41s , +82d 24m 34.9s) |   C |    60 | 18.8 |        
     777 | 2023-12-20 16:22:04 |   MASTER-Kislovodsk | (05h 22m 17.38s , +81d 58m 31.2s) |   C |   140 | 19.2 |        
     791 | 2023-12-20 16:22:58 |        MASTER-Tunka | (04h 49m 13.31s , +82d 24m 37.6s) |   C |    60 | 18.8 |        
     953 | 2023-12-20 16:24:45 |   MASTER-Kislovodsk | (05h 22m 25.64s , +81d 59m 51.5s) |   C |   170 | 19.3 |        
    1149 | 2023-12-20 16:27:56 |   MASTER-Kislovodsk | (05h 22m 17.42s , +81d 59m 23.7s) |   C |   180 | 19.4 |        
    1291 | 2023-12-20 16:31:18 |   MASTER-Kislovodsk | (04h 54m 53.65s , +82d 03m 55.3s) |   C |    60 | 15.0 |        
    2595 | 2023-12-20 16:53:02 |   MASTER-Kislovodsk | (04h 36m 40.50s , +82d 37m 42.1s) |   C |    60 | 18.4 |        
    2675 | 2023-12-20 16:54:22 |   MASTER-Kislovodsk | (06h 40m 35.82s , +82d 35m 35.2s) |   C |    60 | 18.5 |        
    2757 | 2023-12-20 16:55:44 |   MASTER-Kislovodsk | (06h 17m 17.19s , +84d 28m 19.6s) |   C |    60 | 18.6 |        
    2839 | 2023-12-20 16:57:05 |   MASTER-Kislovodsk | (05h 42m 20.32s , +78d 51m 06.7s) |   C |    60 | 18.8 |        
    2921 | 2023-12-20 16:58:28 |   MASTER-Kislovodsk | (05h 42m 52.38s , +78d 51m 07.7s) |   C |    60 | 14.8 |        
    3001 | 2023-12-20 16:59:48 |   MASTER-Kislovodsk | (05h 44m 09.29s , +78d 51m 11.1s) |   C |    60 | 14.8 |        
    3082 | 2023-12-20 17:01:09 |   MASTER-Kislovodsk | (03h 38m 32.79s , +80d 46m 42.5s) |   C |    60 | 18.5 |        
    3163 | 2023-12-20 17:02:29 |   MASTER-Kislovodsk | (03h 28m 26.96s , +84d 34m 57.7s) |   C |    60 | 18.6 |        
    3244 | 2023-12-20 17:03:51 |   MASTER-Kislovodsk | (05h 26m 07.87s , +86d 21m 38.1s) |   C |    60 | 18.7 |        
    3324 | 2023-12-20 17:05:11 |   MASTER-Kislovodsk | (07h 02m 56.70s , +78d 48m 04.5s) |   C |    60 | 18.6 |        
    3406 | 2023-12-20 17:06:32 |   MASTER-Kislovodsk | (04h 51m 59.60s , +76d 58m 32.8s) |   C |    60 | 18.6 |        
    4959 | 2023-12-20 17:32:26 |   MASTER-Kislovodsk | (05h 16m 05.81s , +80d 44m 30.6s) |   C |    60 | 18.7 |        
    5040 | 2023-12-20 17:33:47 |   MASTER-Kislovodsk | (04h 36m 36.25s , +82d 40m 42.7s) |   C |    60 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2024

MASTER Net MASTER Database: GRB231220.67 page

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Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

Amur

Tunka

Kislovodsk

Tavrida

SAAO

IAC

Argentina

Mexico

Ural

Vostryakovo

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

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

General:
SN list | Sky map | Add asteroid
Meteo | Focus | MASTER page
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Search: