MASTER Net MASTER Database: GRB250331.18 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 GRB250331.18
Trignum 1299965
Trigger time 2025-03-31 04:19:43.47
Notice time 2025-03-31 04:20:51.364547
Coord, eb (04h 45m 31.44s , +43d 48m 18.0s) , 0.05
Max dist: 1 sigma 3 sigma
AGN candidates: Milliquas
r90wise
wiseXgaia
BL Lac candidates: 1 Sigma
3 Sigma

MASTER observatories and transients from them in error-field
Kislovodsk Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Amur Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tunka Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAFA Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
IAC Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
SAAO Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
Tavrida Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)
OAGH Transients (Undef)
(All)
(Yes)
Trans. Difference (Undef)
(All)
(Yes)
(Gal)

You are viewing outdated information, relevant error box is here

All alerts for this trigger
id noticetime coord2000 satel errorbox type trigger seq trig_type links
2828941 2025-03-31 04:25:36.421395 04h 45m 31.08s +43d 48m 04.7s SWIFT 0 alert 1299965 4 68 alert
2828949 2025-03-31 04:42:12.314903 04h 45m 29.76s +43d 48m 39.6s SWIFT 0.0005 alert 1299965 3 67 alert
2828939 2025-03-31 04:20:51.364547 04h 45m 31.44s +43d 48m 18.0s SWIFT 0.05 alert 1299965 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
127.2 2025-03-31 04:19:42.674 12h 17m 36.35s -31d 48m 08.1s OAFA 29008 Database OAFA
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2025-03-31 04:19:43 (JD 2460765.680359)

Siderial time 19.423170 h

Ra 04:45:31.44 Dec 43:48:18.00
( 71.381000d, 43.805000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 55.88 Azimuth: 261.16

Sun: Altitude: 42.74 Azimuth: 15.98

Moon: Altitude: 54.86 Azimuth: 342.98

Tunka

Object: Altitude: 41.50 Azimuth: 248.28

Sun: Altitude: 41.13 Azimuth: 343.04

Moon: Altitude: 45.05 Azimuth: 309.60

Kislovodsk

Object: Altitude: 6.27 Azimuth: 210.81

Sun: Altitude: 14.89 Azimuth: 278.74

Moon: Altitude: 7.52 Azimuth: 254.84

Tavrida

Object: Altitude: 4.26 Azimuth: 205.41

Sun: Altitude: 8.73 Azimuth: 272.88

Moon: Altitude: 2.03 Azimuth: 249.13

SAAO

Object: Altitude: -68.60 Azimuth: 231.08

Sun: Altitude: -6.40 Azimuth: 269.19

Moon: Altitude: -30.95 Azimuth: 269.81

IAC

Object: Altitude: -16.74 Azimuth: 169.38

Sun: Altitude: -33.86 Azimuth: 242.67

Moon: Altitude: -38.98 Azimuth: 212.68

Argentina

Object: Altitude: -37.20 Azimuth: 123.49

Sun: Altitude: -61.89 Azimuth: 10.88

Moon: Altitude: -60.98 Azimuth: 63.66

Mexico

Object: Altitude: 33.26 Azimuth: 124.85

Sun: Altitude: -33.70 Azimuth: 120.13

Moon: Altitude: -9.52 Azimuth: 115.46

Ural

Object: Altitude: 23.31 Azimuth: 223.88

Sun: Altitude: 21.20 Azimuth: 297.19

Moon: Altitude: 19.96 Azimuth: 270.96

Vostryakovo

Object: Altitude: 14.85 Azimuth: 208.78

Sun: Altitude: 10.19 Azimuth: 277.61

Moon: Altitude: 7.82 Azimuth: 252.85

Gal. latitude: -0.584074 Gal. longitude: 161.279479

Dist. to Sun: 67.108084

Dist. to Moon: 43.706256

Moon coord.: (31.313236 d, 16.132425 d)

Sun coord.: (9.518365 d, 4.102557 d)

Lunar disk: 0.045444

Lunar phase: 155.382986

Lunar bright limb: 243.010799

No SN in this field

2025-03-31 04:20:51 (JD 2460765.681146)

Siderial time 19.442110 h

Ra 04:45:31.44 Dec 43:48:18.00
( 71.381000d, 43.805000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 56.06 Azimuth: 261.34

Sun: Altitude: 42.69 Azimuth: 16.36

Moon: Altitude: 54.91 Azimuth: 343.43

Tunka

Object: Altitude: 41.67 Azimuth: 248.44

Sun: Altitude: 41.18 Azimuth: 343.41

Moon: Altitude: 45.19 Azimuth: 309.92

Kislovodsk

Object: Altitude: 6.37 Azimuth: 210.99

Sun: Altitude: 15.09 Azimuth: 278.95

Moon: Altitude: 7.72 Azimuth: 255.02

Tavrida

Object: Altitude: 4.35 Azimuth: 205.60

Sun: Altitude: 8.93 Azimuth: 273.08

Moon: Altitude: 2.22 Azimuth: 249.32

SAAO

Object: Altitude: -68.42 Azimuth: 231.31

Sun: Altitude: -6.16 Azimuth: 269.04

Moon: Altitude: -30.72 Azimuth: 269.65

IAC

Object: Altitude: -16.78 Azimuth: 169.58

Sun: Altitude: -33.64 Azimuth: 242.88

Moon: Altitude: -38.85 Azimuth: 212.97

Argentina

Object: Altitude: -37.41 Azimuth: 123.45

Sun: Altitude: -61.93 Azimuth: 10.29

Moon: Altitude: -61.19 Azimuth: 63.34

Mexico

Object: Altitude: 33.06 Azimuth: 124.90

Sun: Altitude: -33.91 Azimuth: 120.35

Moon: Altitude: -9.73 Azimuth: 115.62

Ural

Object: Altitude: 23.42 Azimuth: 224.07

Sun: Altitude: 21.33 Azimuth: 297.46

Moon: Altitude: 20.12 Azimuth: 271.19

Vostryakovo

Object: Altitude: 14.93 Azimuth: 208.98

Sun: Altitude: 10.35 Azimuth: 277.84

Moon: Altitude: 7.97 Azimuth: 253.07

Gal. latitude: -0.584074 Gal. longitude: 161.279479

Dist. to Sun: 67.107369

Dist. to Moon: 43.695367

Moon coord.: (31.324538 d, 16.137275 d)

Sun coord.: (9.519082 d, 4.102862 d)

Lunar disk: 0.045484

Lunar phase: 155.371861

Lunar bright limb: 243.015010

No SN in this field

2025-03-31 05:20:51 (JD 2460765.722812)

Siderial time 20.444848 h

Ra 04:45:31.44 Dec 43:48:18.00
( 71.381000d, 43.805000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 65.63 Azimuth: 271.93

Sun: Altitude: 38.52 Azimuth: 35.34

Moon: Altitude: 55.87 Azimuth: 7.91

Tunka

Object: Altitude: 50.54 Azimuth: 257.45

Sun: Altitude: 42.26 Azimuth: 3.46

Moon: Altitude: 51.25 Azimuth: 328.72

Kislovodsk

Object: Altitude: 12.68 Azimuth: 219.93

Sun: Altitude: 25.58 Azimuth: 290.36

Moon: Altitude: 18.14 Azimuth: 264.41

Tavrida

Object: Altitude: 9.75 Azimuth: 215.07

Sun: Altitude: 19.47 Azimuth: 284.06

Moon: Altitude: 12.26 Azimuth: 258.97

SAAO

Object: Altitude: -57.97 Azimuth: 237.87

Sun: Altitude: 6.45 Azimuth: 260.95

Moon: Altitude: -18.69 Azimuth: 262.05

IAC

Object: Altitude: -17.89 Azimuth: 180.88

Sun: Altitude: -21.40 Azimuth: 252.63

Moon: Altitude: -30.49 Azimuth: 226.45

Argentina

Object: Altitude: -48.19 Azimuth: 121.90

Sun: Altitude: -60.72 Azimuth: 338.89

Moon: Altitude: -71.02 Azimuth: 38.55

Mexico

Object: Altitude: 22.72 Azimuth: 128.60

Sun: Altitude: -44.13 Azimuth: 134.49

Moon: Altitude: -20.25 Azimuth: 124.98

Ural

Object: Altitude: 29.60 Azimuth: 234.04

Sun: Altitude: 28.04 Azimuth: 312.20

Moon: Altitude: 28.11 Azimuth: 283.62

Vostryakovo

Object: Altitude: 19.71 Azimuth: 219.17

Sun: Altitude: 18.61 Azimuth: 290.75

Moon: Altitude: 16.21 Azimuth: 264.48

Gal. latitude: -0.584074 Gal. longitude: 161.279479

Dist. to Sun: 67.069536

Dist. to Moon: 43.119626

Moon coord.: (31.923501 d, 16.393119 d)

Sun coord.: (9.557043 d, 4.119013 d)

Lunar disk: 0.047650

Lunar phase: 154.783039

Lunar bright limb: 243.237997

No SN in this field

2025-05-24 21:51:44 (JD 2460820.410926)

Siderial time 16.553117 h

Ra 04:45:31.44 Dec 43:48:18.00
( 71.381000d, 43.805000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 30.45 Azimuth: 236.71

Sun: Altitude: 20.03 Azimuth: 261.10

Moon: Altitude: 36.20 Azimuth: 292.00

Tunka

Object: Altitude: 19.70 Azimuth: 222.77

Sun: Altitude: 5.91 Azimuth: 243.39

Moon: Altitude: 20.96 Azimuth: 271.94

Kislovodsk

Object: Altitude: -2.43 Azimuth: 181.32

Sun: Altitude: -24.50 Azimuth: 191.92

Moon: Altitude: -18.59 Azimuth: 225.25

Tavrida

Object: Altitude: -1.27 Azimuth: 175.18

Sun: Altitude: -24.33 Azimuth: 183.18

Moon: Altitude: -21.88 Azimuth: 217.38

SAAO

Object: Altitude: -70.70 Azimuth: 132.01

Sun: Altitude: -75.39 Azimuth: 40.57

Moon: Altitude: -63.27 Azimuth: 304.78

IAC

Object: Altitude: -0.91 Azimuth: 142.64

Sun: Altitude: -22.80 Azimuth: 131.72

Moon: Altitude: -44.23 Azimuth: 159.85

Argentina

Object: Altitude: -8.90 Azimuth: 136.66

Sun: Altitude: -2.67 Azimuth: 113.01

Moon: Altitude: -26.75 Azimuth: 91.84

Mexico

Object: Altitude: 63.93 Azimuth: 127.44

Sun: Altitude: 53.96 Azimuth: 83.09

Moon: Altitude: 23.57 Azimuth: 94.04

Ural

Object: Altitude: 12.07 Azimuth: 193.79

Sun: Altitude: -8.46 Azimuth: 206.90

Moon: Altitude: -1.90 Azimuth: 237.84

Vostryakovo

Object: Altitude: 9.22 Azimuth: 177.89

Sun: Altitude: -13.51 Azimuth: 186.62

Moon: Altitude: -11.99 Azimuth: 218.88

Gal. latitude: -0.584074 Gal. longitude: 161.279479

Dist. to Sun: 24.324205

Dist. to Moon: 45.936218

Moon coord.: (28.982591 d, 15.162904 d)

Sun coord.: (61.598781 d, 20.882587 d)

Lunar disk: 0.073961

Lunar phase: 148.438400

Lunar bright limb: 74.598789

No SN in this field

Recent coverage and limits telegrams

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

  ID = 12342
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) was pointed to the SWIFT GRB 250331B ( S. B. Cenko et al., GCN 39958) errorbox  47556 sec after notice time and 47612 sec after trigger time at 2025-03-31 17:33:15 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 85 deg. The sun  altitude  is -13.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 250331B errorbox  60008 sec after notice time and 60064 sec after trigger time at 2025-03-31 21:00:48 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -42.5 deg. 

The galactic latitude b = -1 deg., longitude l = 161 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2828932

We obtain a following upper limits.  

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

   47702 |         MASTER-SAAO |   C |   180 | 16.5 |        
   47902 |         MASTER-SAAO |   C |   180 | 16.7 |        
   48101 |         MASTER-SAAO |   C |   180 | 16.9 |        
   60155 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   60335 |   MASTER-Kislovodsk |   C |   540 | 17.9 |  Coadd 
   60354 |   MASTER-Kislovodsk |   C |   180 | 17.4 |        
   60554 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   60753 |   MASTER-Kislovodsk |   C |   180 | 17.6 |        
   60933 |   MASTER-Kislovodsk |   C |   540 | 18.1 |  Coadd 
   60953 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   61152 |   MASTER-Kislovodsk |   C |   180 | 17.6 |        
   61352 |   MASTER-Kislovodsk |   C |   180 | 17.6 |        
   61532 |   MASTER-Kislovodsk |   C |   540 | 16.9 |  Coadd 
   61551 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   61751 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   61950 |   MASTER-Kislovodsk |   C |   180 | 17.3 |        
   62130 |   MASTER-Kislovodsk |   C |   540 | 17.6 |  Coadd 
   62150 |   MASTER-Kislovodsk |   C |   180 | 17.2 |        
   62349 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   62549 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   62729 |   MASTER-Kislovodsk |   C |   540 | 17.6 |  Coadd 
   62749 |   MASTER-Kislovodsk |   C |   180 | 17.2 |        
   62948 |   MASTER-Kislovodsk |   C |   180 | 17.2 |        
   64216 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   64416 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   65612 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
   65812 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
   68267 |   MASTER-Kislovodsk |   C |   180 | 13.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 12326
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) was pointed to the SWIFT GRB 250331B ( S. B. Cenko et al., GCN 39958) errorbox  47556 sec after notice time and 47612 sec after trigger time at 2025-03-31 17:33:15 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 85 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -1 deg., longitude l = 161 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2828939

We obtain a following upper limits.  

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

   47702 |         MASTER-SAAO |   C |   180 | 16.5 |        
   47902 |         MASTER-SAAO |   C |   180 | 16.7 |        
   48101 |         MASTER-SAAO |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 12325
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) was pointed to the SWIFT GRB 250331B ( S. B. Cenko et al., GCN 39958) errorbox  47556 sec after notice time and 47612 sec after trigger time at 2025-03-31 17:33:15 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 85 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -1 deg., longitude l = 161 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2828939

We obtain a following upper limits.  

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

   47702 |         MASTER-SAAO |   C |   180 | 16.5 |        
   47902 |         MASTER-SAAO |   C |   180 | 16.7 |        
   48101 |         MASTER-SAAO |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 12324
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) was pointed to the SWIFT GRB 250331B ( S. B. Cenko et al., GCN 39958) errorbox  47556 sec after notice time and 47612 sec after trigger time at 2025-03-31 17:33:15 UT, with upper limit up to  16.9 mag. Observations started at twilight.  The observations began at zenith distance = 85 deg. The sun  altitude  is -13.0 deg. 

The galactic latitude b = -1 deg., longitude l = 161 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2828939

We obtain a following upper limits.  

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

   47702 |         MASTER-SAAO |   C |   180 | 16.5 |        
   47902 |         MASTER-SAAO |   C |   180 | 16.7 |        
   48101 |         MASTER-SAAO |   C |   180 | 16.9 |        
Filter C is a clear (unfiltred) band. 


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



 

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