MASTER Net MASTER Database: GRB191220.56 page

Please use the reference to MASTER DataBase as Lipunov et al., 2010, MASTER Robotic Net, Advances in Astronomy, vol. 2010, p.30L

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


Name SWIFT GRB191220.56
Trignum 945344
Trigger time 2019-12-20 13:31:50.23
Notice time 2019-12-20 13:32:34.967892
Coord, eb (18h 45m 31.20s , +26d 39m 28.8s) , 0.00180556
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
1233397 2019-12-20 13:32:36.967898 18h 45m 31.20s +26d 39m 28.8s SWIFT 0 alert 945344 1 78 alert
1233393 2019-12-20 13:32:34.967892 18h 45m 31.20s +26d 39m 28.8s SWIFT 0.00180556 alert 945344 1 69 alert
1233399 2019-12-20 13:33:15.354755 18h 45m 36.53s +26d 41m 52.4s SWIFT 0 alert 945344 2 68 alert
1233409 2019-12-20 13:49:48.277524 18h 45m 31.20s +26d 39m 21.6s SWIFT 0.000611111 alert 945344 2 67 alert
1233370 2019-12-20 13:31:00.685889 18h 45m 33.79s +26d 40m 01.9s SWIFT 0.05 alert 945344 2 61 alert

DAYS:

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

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

2019-12-20 13:31:50 (JD 2458838.063773)

Siderial time 21.961766 h

Ra 18:45:31.20 Dec 26:39:28.80
(281.380000d, 26.658000d)

Rise 2019-12-21 01:00:57

Transit 2019-12-21 10:16:14

Set 2019-12-21 19:31:30

Amur

Object: Altitude: -4.48 Azimuth: 143.07

Sun: Altitude: -55.12 Azimuth: 129.79

Moon: Altitude: -29.29 Azimuth: 230.89

Tunka

Object: Altitude: 7.61 Azimuth: 124.22

Sun: Altitude: -40.82 Azimuth: 104.37

Moon: Altitude: -37.37 Azimuth: 203.12

Kislovodsk

Object: Altitude: 44.36 Azimuth: 86.13

Sun: Altitude: -0.56 Azimuth: 57.25

Moon: Altitude: -33.44 Azimuth: 126.19

Tavrida

Object: Altitude: 50.27 Azimuth: 78.24

Sun: Altitude: 3.81 Azimuth: 51.18

Moon: Altitude: -27.77 Azimuth: 118.80

SAAO

Object: Altitude: 23.89 Azimuth: 149.54

Sun: Altitude: 49.78 Azimuth: 91.19

Moon: Altitude: -20.84 Azimuth: 74.14

IAC

Object: Altitude: 84.36 Azimuth: 285.51

Sun: Altitude: 37.78 Azimuth: 8.59

Moon: Altitude: 9.32 Azimuth: 83.27

Argentina

Object: Altitude: 8.97 Azimuth: 230.78

Sun: Altitude: 49.19 Azimuth: 269.87

Moon: Altitude: 51.09 Azimuth: 136.16

Mexico

Object: Altitude: 5.68 Azimuth: 242.20

Sun: Altitude: -9.03 Azimuth: 291.98

Moon: Altitude: 54.42 Azimuth: 333.11

Ural

Object: Altitude: 32.89 Azimuth: 89.13

Sun: Altitude: -16.06 Azimuth: 71.54

Moon: Altitude: -30.84 Azimuth: 150.11

Vostryakovo

Object: Altitude: 45.02 Azimuth: 70.58

Sun: Altitude: -4.60 Azimuth: 54.15

Moon: Altitude: -24.05 Azimuth: 126.73

Gal. latitude: 12.622268 Gal. longitude: 56.690545

Dist. to Sun: 51.752584

Dist. to Moon: 85.908697

Moon coord.: (196.686045 d, -1.439798 d)

Sun coord.: (267.907131 d, -23.428889 d)

Lunar disk: 0.348530

Lunar phase: 107.634273

Lunar bright limb: 114.181132

No SN in this field

2019-12-20 13:32:34 (JD 2458838.064282)

Siderial time 21.974022 h

Ra 18:45:31.20 Dec 26:39:28.80
(281.380000d, 26.658000d)

Rise 2019-12-21 01:00:57

Transit 2019-12-21 10:16:14

Set 2019-12-21 19:31:30

Amur

Object: Altitude: -4.55 Azimuth: 143.22

Sun: Altitude: -55.21 Azimuth: 130.04

Moon: Altitude: -29.20 Azimuth: 231.06

Tunka

Object: Altitude: 7.51 Azimuth: 124.36

Sun: Altitude: -40.93 Azimuth: 104.54

Moon: Altitude: -37.33 Azimuth: 203.34

Kislovodsk

Object: Altitude: 44.23 Azimuth: 86.27

Sun: Altitude: -0.67 Azimuth: 57.37

Moon: Altitude: -33.55 Azimuth: 126.36

Tavrida

Object: Altitude: 50.14 Azimuth: 78.40

Sun: Altitude: 3.71 Azimuth: 51.32

Moon: Altitude: -27.89 Azimuth: 118.95

SAAO

Object: Altitude: 23.81 Azimuth: 149.38

Sun: Altitude: 49.63 Azimuth: 91.09

Moon: Altitude: -20.98 Azimuth: 74.03

IAC

Object: Altitude: 84.52 Azimuth: 286.05

Sun: Altitude: 37.76 Azimuth: 8.80

Moon: Altitude: 9.16 Azimuth: 83.35

Argentina

Object: Altitude: 9.09 Azimuth: 230.67

Sun: Altitude: 49.34 Azimuth: 269.78

Moon: Altitude: 50.99 Azimuth: 135.93

Mexico

Object: Altitude: 5.82 Azimuth: 242.29

Sun: Altitude: -8.88 Azimuth: 292.07

Moon: Altitude: 54.48 Azimuth: 333.40

Ural

Object: Altitude: 32.79 Azimuth: 89.29

Sun: Altitude: -16.15 Azimuth: 71.69

Moon: Altitude: -30.89 Azimuth: 150.31

Vostryakovo

Object: Altitude: 44.92 Azimuth: 70.77

Sun: Altitude: -4.68 Azimuth: 54.30

Moon: Altitude: -24.13 Azimuth: 126.90

Gal. latitude: 12.622268 Gal. longitude: 56.690545

Dist. to Sun: 51.752454

Dist. to Moon: 85.904088

Moon coord.: (196.692645 d, -1.442627 d)

Sun coord.: (267.907696 d, -23.428897 d)

Lunar disk: 0.348475

Lunar phase: 107.640941

Lunar bright limb: 114.180955

No SN in this field

2019-12-20 14:32:34 (JD 2458838.105949)

Siderial time 22.976760 h

Ra 18:45:31.20 Dec 26:39:28.80
(281.380000d, 26.658000d)

Rise 2019-12-21 01:00:57

Transit 2019-12-21 10:16:14

Set 2019-12-21 19:31:30

Amur

Object: Altitude: -9.43 Azimuth: 155.84

Sun: Altitude: -61.15 Azimuth: 153.78

Moon: Altitude: -21.56 Azimuth: 244.72

Tunka

Object: Altitude: 0.40 Azimuth: 135.79

Sun: Altitude: -49.50 Azimuth: 119.88

Moon: Altitude: -32.82 Azimuth: 220.20

Kislovodsk

Object: Altitude: 33.38 Azimuth: 96.49

Sun: Altitude: -10.26 Azimuth: 67.29

Moon: Altitude: -41.28 Azimuth: 141.85

Tavrida

Object: Altitude: 39.52 Azimuth: 90.08

Sun: Altitude: -5.18 Azimuth: 61.82

Moon: Altitude: -36.42 Azimuth: 132.83

SAAO

Object: Altitude: 16.24 Azimuth: 137.56

Sun: Altitude: 36.99 Azimuth: 83.58

Moon: Altitude: -32.26 Azimuth: 63.82

IAC

Object: Altitude: 81.73 Azimuth: 80.69

Sun: Altitude: 33.88 Azimuth: 25.10

Moon: Altitude: -3.69 Azimuth: 90.08

Argentina

Object: Altitude: 18.24 Azimuth: 220.52

Sun: Altitude: 62.03 Azimuth: 260.21

Moon: Altitude: 41.42 Azimuth: 120.09

Mexico

Object: Altitude: 17.56 Azimuth: 248.98

Sun: Altitude: 2.69 Azimuth: 299.53

Moon: Altitude: 57.27 Azimuth: 358.92

Ural

Object: Altitude: 24.66 Azimuth: 101.51

Sun: Altitude: -24.11 Azimuth: 83.65

Moon: Altitude: -33.99 Azimuth: 167.12

Vostryakovo

Object: Altitude: 36.59 Azimuth: 84.73

Sun: Altitude: -12.06 Azimuth: 66.04

Moon: Altitude: -30.24 Azimuth: 141.70

Gal. latitude: 12.622268 Gal. longitude: 56.690545

Dist. to Sun: 51.741813

Dist. to Moon: 85.527192

Moon coord.: (197.232666 d, -1.673972 d)

Sun coord.: (267.953937 d, -23.429509 d)

Lunar disk: 0.343945

Lunar phase: 108.186431

Lunar bright limb: 114.165390

No SN in this field

2025-05-09 15:59:35 (JD 2460805.166377)

Siderial time 9.682233 h

Ra 18:45:31.20 Dec 26:39:28.80
(281.380000d, 26.658000d)

Rise 2025-05-10 15:43:28

Transit 2025-05-10 01:02:41

Set 2025-05-10 10:17:58

Amur

Object: Altitude: 47.70 Azimuth: 286.30

Sun: Altitude: -21.80 Azimuth: 188.87

Moon: Altitude: 21.78 Azimuth: 44.59

Tunka

Object: Altitude: 32.36 Azimuth: 266.93

Sun: Altitude: -19.38 Azimuth: 164.03

Moon: Altitude: 28.62 Azimuth: 18.97

Kislovodsk

Object: Altitude: -6.63 Azimuth: 222.57

Sun: Altitude: 2.55 Azimuth: 111.90

Moon: Altitude: 24.96 Azimuth: 310.86

Tavrida

Object: Altitude: -9.72 Azimuth: 215.86

Sun: Altitude: 8.63 Azimuth: 106.06

Moon: Altitude: 19.51 Azimuth: 303.73

SAAO

Object: Altitude: -65.85 Azimuth: 276.65

Sun: Altitude: -2.75 Azimuth: 108.98

Moon: Altitude: 24.83 Azimuth: 263.39

IAC

Object: Altitude: -34.16 Azimuth: 168.89

Sun: Altitude: 47.72 Azimuth: 85.08

Moon: Altitude: -14.99 Azimuth: 270.95

Argentina

Object: Altitude: -35.46 Azimuth: 101.92

Sun: Altitude: 40.12 Azimuth: 190.22

Moon: Altitude: -44.02 Azimuth: 325.39

Mexico

Object: Altitude: 24.75 Azimuth: 107.41

Sun: Altitude: 43.50 Azimuth: 275.09

Moon: Altitude: -62.05 Azimuth: 142.58

Ural

Object: Altitude: 10.19 Azimuth: 235.90

Sun: Altitude: -0.76 Azimuth: 124.87

Moon: Altitude: 21.50 Azimuth: 331.33

Vostryakovo

Object: Altitude: 0.25 Azimuth: 218.41

Sun: Altitude: 9.35 Azimuth: 107.25

Moon: Altitude: 15.09 Azimuth: 309.77

Gal. latitude: 12.622268 Gal. longitude: 56.690545

Dist. to Sun: 110.823735

Dist. to Moon: 91.247499

Moon coord.: (193.942053 d, -7.858649 d)

Sun coord.: (46.468676 d, 17.455772 d)

Lunar disk: 0.919332

Lunar phase: 33.000675

Lunar bright limb: 290.056591

No SN in this field
Recent coverage and limits telegrams

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

  ID = 2115
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) was pointed to the SWIFT GRB 191220A ( S. Laha et al., GCN 26516) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.1 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 191220A errorbox  13 sec after notice time and 20595 sec after trigger time at 2019-12-20 19:12:53 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenith distance = 70 deg. The sun  altitude  is -13.4 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        
     587 |        MASTER-Tunka |  P| |   100 | 16.1 |        
     721 |        MASTER-Tunka |  P| |   130 | 16.0 |        
    1308 |        MASTER-Tunka |  P| |   180 | 15.7 |        
    1508 |        MASTER-Tunka |  P| |   180 | 14.9 |        
    1907 |        MASTER-Tunka |  P| |   180 | 13.9 |        
    2107 |        MASTER-Tunka |  P| |   180 | 13.5 |        
    2306 |        MASTER-Tunka |  P| |   180 | 12.7 |        
   20685 |          MASTER-IAC |   C |   180 | 17.0 |        
   20865 |          MASTER-IAC |   C |   540 | 17.5 |  Coadd 
   20685 |          MASTER-IAC |   C |   180 | 17.4 |        
   20865 |          MASTER-IAC |   C |   540 | 18.1 |  Coadd 
   20937 |          MASTER-IAC |   C |   180 | 17.3 |        
   20939 |          MASTER-IAC |   C |   180 | 17.8 |        
   21191 |          MASTER-IAC |   C |   180 | 17.4 |        
   21192 |          MASTER-IAC |   C |   180 | 18.0 |        
   21442 |          MASTER-IAC |   C |   180 | 17.5 |        
   21622 |          MASTER-IAC |   C |   540 | 17.9 |  Coadd 
   21442 |          MASTER-IAC |   C |   180 | 18.1 |        
   21622 |          MASTER-IAC |   C |   540 | 18.6 |  Coadd 
   21702 |          MASTER-IAC |   C |   180 | 17.3 |        
   21702 |          MASTER-IAC |   C |   180 | 18.1 |        
   21954 |          MASTER-IAC |   C |   180 | 17.3 |        
   21954 |          MASTER-IAC |   C |   180 | 18.1 |        
   22207 |          MASTER-IAC |   C |   180 | 18.1 |        
   22387 |          MASTER-IAC |   C |   540 | 18.6 |  Coadd 
   22207 |          MASTER-IAC |   C |   180 | 17.2 |        
   22387 |          MASTER-IAC |   C |   540 | 17.5 |  Coadd 
   22464 |          MASTER-IAC |   C |   180 | 18.1 |        
   22464 |          MASTER-IAC |   C |   180 | 17.0 |        
   22713 |          MASTER-IAC |   C |   180 | 18.1 |        
   22713 |          MASTER-IAC |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 2114
TYPE = 35
DAYS = 0.5


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) was pointed to the SWIFT GRB 191220A ( S. Laha et al., GCN 26516) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.1 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the SWIFT GRB 191220A errorbox  13 sec after notice time and 20595 sec after trigger time at 2019-12-20 19:12:53 UT, with upper limit up to  18.1 mag. Observations started at twilight.  The observations began at zenith distance = 70 deg. The sun  altitude  is -13.4 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        
     587 |        MASTER-Tunka |  P| |   100 | 16.1 |        
     721 |        MASTER-Tunka |  P| |   130 | 16.0 |        
    1308 |        MASTER-Tunka |  P| |   180 | 15.7 |        
    1508 |        MASTER-Tunka |  P| |   180 | 14.9 |        
    1907 |        MASTER-Tunka |  P| |   180 | 13.9 |        
    2107 |        MASTER-Tunka |  P| |   180 | 13.5 |        
    2306 |        MASTER-Tunka |  P| |   180 | 12.7 |        
   20685 |          MASTER-IAC |   C |   180 | 17.0 |        
   20685 |          MASTER-IAC |   C |   180 | 17.4 |        
   20937 |          MASTER-IAC |   C |   180 | 17.3 |        
   20939 |          MASTER-IAC |   C |   180 | 17.8 |        
   21191 |          MASTER-IAC |   C |   180 | 17.4 |        
   21192 |          MASTER-IAC |   C |   180 | 18.0 |        
   21442 |          MASTER-IAC |   C |   180 | 17.5 |        
   21442 |          MASTER-IAC |   C |   180 | 18.1 |        
   21702 |          MASTER-IAC |   C |   180 | 17.3 |        
   21702 |          MASTER-IAC |   C |   180 | 18.1 |        
   21954 |          MASTER-IAC |   C |   180 | 17.3 |        
   21954 |          MASTER-IAC |   C |   180 | 18.1 |        
   22207 |          MASTER-IAC |   C |   180 | 18.1 |        
   22207 |          MASTER-IAC |   C |   180 | 17.2 |        
   22464 |          MASTER-IAC |   C |   180 | 18.1 |        
   22464 |          MASTER-IAC |   C |   180 | 17.0 |        
   22713 |          MASTER-IAC |   C |   180 | 18.1 |        
   22713 |          MASTER-IAC |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 2111
TYPE = 35
DAYS = 0.1


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) was pointed to the SWIFT GRB 191220A ( S. Laha et al., GCN 26516) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.1 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        
     587 |        MASTER-Tunka |  P| |   100 | 16.1 |        
     721 |        MASTER-Tunka |  P| |   130 | 16.0 |        
    1308 |        MASTER-Tunka |  P| |   180 | 15.7 |        
    1508 |        MASTER-Tunka |  P| |   180 | 14.9 |        
    1907 |        MASTER-Tunka |  P| |   180 | 13.9 |        
    2107 |        MASTER-Tunka |  P| |   180 | 13.5 |        
    2306 |        MASTER-Tunka |  P| |   180 | 12.7 |        


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



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

  ID = 2110
TYPE = 35
DAYS = 0.03


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) was pointed to the SWIFT GRB191220.56 (trigger No 945344,18h 45m 33.79s , +26d 40m 01.9s, R=0.05) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.1 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        
     587 |        MASTER-Tunka |  P| |   100 | 16.1 |        
     721 |        MASTER-Tunka |  P| |   130 | 16.0 |        
    1308 |        MASTER-Tunka |  P| |   180 | 15.7 |        
    1508 |        MASTER-Tunka |  P| |   180 | 14.9 |        
    1907 |        MASTER-Tunka |  P| |   180 | 13.9 |        
    2107 |        MASTER-Tunka |  P| |   180 | 13.5 |        
    2306 |        MASTER-Tunka |  P| |   180 | 12.7 |        


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



#######################################################################################
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  ID = 2109
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) was pointed to the SWIFT GRB191220.56 (trigger No 945344,18h 45m 33.79s , +26d 40m 01.9s, R=0.05) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.0 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        


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



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

  ID = 2108
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) was pointed to the SWIFT GRB191220.56 (trigger No 945344,18h 45m 33.79s , +26d 40m 01.9s, R=0.05) errorbox  13 sec after notice time and 90 sec after trigger time at 2019-12-20 13:31:08 UT, with upper limit up to  16.0 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -40.9 deg. 

The galactic latitude b = 13 deg., longitude l = 57 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1233370

We obtain a following upper limits.  

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

     101 |        MASTER-Tunka |  P| |    20 | 14.9 |        
     140 |        MASTER-Tunka |  P| |    20 | 15.0 |        
     185 |        MASTER-Tunka |  P| |    30 | 15.5 |        
     239 |        MASTER-Tunka |  P| |    40 | 15.4 |        
     304 |        MASTER-Tunka |  P| |    50 | 15.8 |        
     383 |        MASTER-Tunka |  P| |    70 | 15.9 |        
     477 |        MASTER-Tunka |  P| |    80 | 16.0 |        


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

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