GRB250211.89 page :: MASTER Database

MASTER Net MASTER Database: GRB250211.89 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

INTEGRAL GRB250211.89

Trignum

11044

Trigger time

2025-02-11 21:28:10.77

Notice time

2025-02-12 07:47:48.651206

Coord, eb

(18h 25m 30.85s , -31d 57m 54.1s) , 0.0333333

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
2775998	2025-02-12 07:47:48.651206	18^h 25^m 30.85^s -31^d 57^m 54.1^s	INTEGRAL	0.0333333	alert	11044	3	55	alert
2775674	2025-02-11 21:31:19.301633	18^h 25^m 28.92^s -31^d 58^m 30.0^s	INTEGRAL	0.048	alert	11044	2	54	alert
2775667	2025-02-11 21:28:14.841007	18^h 25^m 33.49^s -31^d 57^m 36.2^s	INTEGRAL	0.0533333	alert	11044	1	53	alert

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

2025-02-11 21:28:10 (JD 2460718.394560)

Siderial time 9.456861 h

Ra 18:25:30.85 Dec -31:57:54.10
(276.378542d, -31.965028d)

Rise 2025-02-12 07:39:32

Transit 2025-02-12 09:24:48

Set 2025-02-12 11:10:03

Amur

Object: Altitude: -1.27 Azimuth: 323.38

Sun: Altitude: -12.94 Azimuth: 276.16

Moon: Altitude: 13.07 Azimuth: 105.16

Tunka

Object: Altitude: -13.22 Azimuth: 305.51

Sun: Altitude: -28.08 Azimuth: 256.12

Moon: Altitude: 28.41 Azimuth: 86.07

Kislovodsk

Object: Altitude: -49.19 Azimuth: 270.73

Sun: Altitude: -60.07 Azimuth: 182.63

Moon: Altitude: 64.97 Azimuth: 18.48

Tavrida

Object: Altitude: -55.22 Azimuth: 263.10

Sun: Altitude: -58.51 Azimuth: 166.62

Moon: Altitude: 64.94 Azimuth: 359.29

SAAO

Object: Altitude: -20.19 Azimuth: 334.30

Sun: Altitude: -39.85 Azimuth: 26.10

Moon: Altitude: 36.36 Azimuth: 195.87

IAC

Object: Altitude: -81.67 Azimuth: 61.78

Sun: Altitude: -34.78 Azimuth: 92.48

Moon: Altitude: 43.08 Azimuth: 268.86

Argentina

Object: Altitude: -3.75 Azimuth: 48.33

Sun: Altitude: 24.52 Azimuth: 88.49

Moon: Altitude: -21.50 Azimuth: 259.54

Mexico

Object: Altitude: -6.63 Azimuth: 56.49

Sun: Altitude: 37.45 Azimuth: 35.63

Moon: Altitude: -29.00 Azimuth: 218.45

Ural

Object: Altitude: -38.43 Azimuth: 271.06

Sun: Altitude: -44.59 Azimuth: 205.45

Moon: Altitude: 48.25 Azimuth: 37.02

Vostryakovo

Object: Altitude: -50.58 Azimuth: 252.86

Sun: Altitude: -48.37 Azimuth: 175.09

Moon: Altitude: 54.20 Azimuth: 5.59

Gal. latitude: -9.589070 Gal. longitude: 1.857005

Dist. to Sun: 48.184078

Dist. to Moon: 140.361155

Moon coord.: (138.572573 d, 19.674680 d)

Sun coord.: (325.404462 d, -13.833876 d)

Lunar disk: 0.994189

Lunar phase: 8.744135

Lunar bright limb: 310.655395

No SN in this field

2025-02-12 07:47:48 (JD 2460718.824861)

Siderial time 19.812359 h

Ra 18:25:30.85 Dec -31:57:54.10
(276.378542d, -31.965028d)

Rise 2025-02-12 07:39:32

Transit 2025-02-12 09:24:48

Set 2025-02-12 11:10:03

Amur

Object: Altitude: -36.77 Azimuth: 82.28

Sun: Altitude: 6.69 Azimuth: 59.03

Moon: Altitude: -2.44 Azimuth: 238.30

Tunka

Object: Altitude: -22.45 Azimuth: 66.34

Sun: Altitude: 17.15 Azimuth: 37.53

Moon: Altitude: -12.85 Azimuth: 217.66

Kislovodsk

Object: Altitude: 10.73 Azimuth: 22.00

Sun: Altitude: 28.61 Azimuth: 333.54

Moon: Altitude: -25.46 Azimuth: 156.85

Tavrida

Object: Altitude: 11.72 Azimuth: 14.85

Sun: Altitude: 24.66 Azimuth: 325.22

Moon: Altitude: -21.80 Azimuth: 148.73

SAAO

Object: Altitude: 86.59 Azimuth: 95.93

Sun: Altitude: 44.62 Azimuth: 256.59

Moon: Altitude: -48.17 Azimuth: 80.12

IAC

Object: Altitude: 21.91 Azimuth: 329.85

Sun: Altitude: -0.26 Azimuth: 285.45

Moon: Altitude: 0.61 Azimuth: 109.74

Argentina

Object: Altitude: 19.12 Azimuth: 296.38

Sun: Altitude: -27.72 Azimuth: 309.82

Moon: Altitude: 23.60 Azimuth: 131.25

Mexico

Object: Altitude: -45.44 Azimuth: 285.62

Sun: Altitude: -72.37 Azimuth: 190.82

Moon: Altitude: 75.74 Azimuth: 20.65

Ural

Object: Altitude: -6.03 Azimuth: 35.37

Sun: Altitude: 19.05 Azimuth: 353.09

Moon: Altitude: -15.25 Azimuth: 175.21

Vostryakovo

Object: Altitude: 0.82 Azimuth: 17.70

Sun: Altitude: 16.89 Azimuth: 331.07

Moon: Altitude: -13.61 Azimuth: 153.97

Gal. latitude: -9.589070 Gal. longitude: 1.857005

Dist. to Sun: 48.610261

Dist. to Moon: 134.881707

Moon coord.: (143.953395 d, 17.604684 d)

Sun coord.: (325.827543 d, -13.691029 d)

Lunar disk: 0.998593

Lunar phase: 4.299290

Lunar bright limb: 334.921521

No SN in this field

2025-02-12 08:47:48 (JD 2460718.866528)

Siderial time 20.815097 h

Ra 18:25:30.85 Dec -31:57:54.10
(276.378542d, -31.965028d)

Rise 2025-02-12 07:39:32

Transit 2025-02-12 09:24:48

Set 2025-02-12 11:10:03

Amur

Object: Altitude: -46.36 Azimuth: 93.58

Sun: Altitude: -1.96 Azimuth: 70.78

Moon: Altitude: 5.71 Azimuth: 249.51

Tunka

Object: Altitude: -31.25 Azimuth: 76.70

Sun: Altitude: 10.70 Azimuth: 51.00

Moon: Altitude: -6.80 Azimuth: 230.32

Kislovodsk

Object: Altitude: 5.64 Azimuth: 33.81

Sun: Altitude: 32.02 Azimuth: 349.97

Moon: Altitude: -28.49 Azimuth: 172.03

Tavrida

Object: Altitude: 7.88 Azimuth: 27.19

Sun: Altitude: 29.53 Azimuth: 340.67

Moon: Altitude: -26.22 Azimuth: 163.12

SAAO

Object: Altitude: 73.90 Azimuth: 86.36

Sun: Altitude: 56.51 Azimuth: 243.18

Moon: Altitude: -59.84 Azimuth: 67.25

IAC

Object: Altitude: 27.28 Azimuth: 342.58

Sun: Altitude: 12.21 Azimuth: 293.04

Moon: Altitude: -11.25 Azimuth: 116.96

Argentina

Object: Altitude: 30.84 Azimuth: 290.81

Sun: Altitude: -17.19 Azimuth: 298.89

Moon: Altitude: 13.76 Azimuth: 120.94

Mexico

Object: Altitude: -33.17 Azimuth: 290.16

Sun: Altitude: -65.79 Azimuth: 228.25

Moon: Altitude: 67.46 Azimuth: 57.30

Ural

Object: Altitude: -11.42 Azimuth: 47.07

Sun: Altitude: 18.95 Azimuth: 8.51

Moon: Altitude: -15.13 Azimuth: 189.57

Vostryakovo

Object: Altitude: -2.63 Azimuth: 29.98

Sun: Altitude: 20.02 Azimuth: 346.08

Moon: Altitude: -16.51 Azimuth: 168.01

Gal. latitude: -9.589070 Gal. longitude: 1.857005

Dist. to Sun: 48.651531

Dist. to Moon: 134.353033

Moon coord.: (144.465473 d, 17.397163 d)

Sun coord.: (325.868479 d, -13.677160 d)

Lunar disk: 0.998813

Lunar phase: 3.948749

Lunar bright limb: 339.783048

No SN in this field

2025-04-30 05:45:26 (JD 2460795.739884)

Siderial time 22.826987 h

Ra 18:25:30.85 Dec -31:57:54.10
(276.378542d, -31.965028d)

Rise 2025-05-01 02:32:47

Transit 2025-04-30 04:22:03

Set 2025-04-30 06:07:18

Amur

Object: Altitude: -64.41 Azimuth: 126.66

Sun: Altitude: 44.63 Azimuth: 51.00

Moon: Altitude: 67.17 Azimuth: 0.48

Tunka

Object: Altitude: -49.77 Azimuth: 100.19

Sun: Altitude: 52.01 Azimuth: 16.58

Moon: Altitude: 59.66 Azimuth: 313.94

Kislovodsk

Object: Altitude: -9.55 Azimuth: 54.40

Sun: Altitude: 38.64 Azimuth: 288.29

Moon: Altitude: 22.20 Azimuth: 252.57

Tavrida

Object: Altitude: -5.37 Azimuth: 49.05

Sun: Altitude: 32.50 Azimuth: 281.90

Moon: Altitude: 16.80 Azimuth: 247.69

SAAO

Object: Altitude: 48.72 Azimuth: 76.83

Sun: Altitude: 6.83 Azimuth: 247.69

Moon: Altitude: -27.35 Azimuth: 253.30

IAC

Object: Altitude: 28.68 Azimuth: 11.50

Sun: Altitude: -9.09 Azimuth: 247.72

Moon: Altitude: -24.29 Azimuth: 215.10

Argentina

Object: Altitude: 55.47 Azimuth: 281.40

Sun: Altitude: -66.28 Azimuth: 311.78

Moon: Altitude: -74.96 Azimuth: 77.60

Mexico

Object: Altitude: -9.88 Azimuth: 301.49

Sun: Altitude: -39.15 Azimuth: 150.86

Moon: Altitude: -9.70 Azimuth: 130.51

Ural

Object: Altitude: -25.32 Azimuth: 69.71

Sun: Altitude: 40.89 Azimuth: 315.75

Moon: Altitude: 34.76 Azimuth: 272.15

Vostryakovo

Object: Altitude: -13.96 Azimuth: 53.13

Sun: Altitude: 31.76 Azimuth: 291.68

Moon: Altitude: 22.62 Azimuth: 253.94

Gal. latitude: -9.589070 Gal. longitude: 1.857005

Dist. to Sun: 123.879140

Dist. to Moon: 158.461505

Moon coord.: (72.059030 d, 27.490799 d)

Sun coord.: (37.385685 d, 14.753439 d)

Lunar disk: 0.088824

Lunar phase: 145.320848

Lunar bright limb: 255.656591

No SN in this field

Recent coverage and limits telegrams

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

  ID = 12050
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 INTEGRAL GRB250211.89 (trigger No 207652,18h 25m 30.79s , -31d 57m 55.1s, R=0.0333) errorbox 12197 sec after trigger time at 2025-02-12 00:51:28 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -36.1 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) was pointed to the INTEGRAL GRB250211.89 errorbox 35090 sec after trigger time at 2025-02-12 07:13:01 UT, with upper limit up to  16.5 mag. The observations began at zenith distance = 78 deg. The sun  altitude  is -33.5 deg. 

The galactic latitude b = -10 deg., longitude l =  2 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2775995

We obtain a following upper limits.  

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

   12287 |         MASTER-SAAO |   C |   180 | 16.1 |        
   12467 |         MASTER-SAAO |   C |   540 | 15.8 |  Coadd 
   13097 |         MASTER-SAAO |   C |  1800 | 16.8 |  Coadd 
   12487 |         MASTER-SAAO |   C |   180 | 16.2 |        
   12686 |         MASTER-SAAO |   C |   180 | 16.4 |        
   12891 |         MASTER-SAAO |   C |   180 | 16.4 |        
   13090 |         MASTER-SAAO |   C |   180 | 16.5 |        
   13289 |         MASTER-SAAO |   C |   180 | 16.6 |        
   13489 |         MASTER-SAAO |   C |   180 | 16.7 |        
   13688 |         MASTER-SAAO |   C |   180 | 16.8 |        
   13887 |         MASTER-SAAO |   C |   180 | 16.8 |        
   14086 |         MASTER-SAAO |   C |   180 | 16.8 |        
   14286 |         MASTER-SAAO |   C |   180 | 16.8 |        
   14466 |         MASTER-SAAO |   C |   540 | 17.1 |  Coadd 
   14485 |         MASTER-SAAO |   C |   180 | 17.0 |        
   14728 |         MASTER-SAAO |   C |   180 | 17.0 |        
   14928 |         MASTER-SAAO |   C |   180 | 17.0 |        
   15108 |         MASTER-SAAO |   C |   540 | 17.2 |  Coadd 
   15127 |         MASTER-SAAO |   C |   180 | 17.0 |        
   15327 |         MASTER-SAAO |   C |   180 | 17.0 |        
   15526 |         MASTER-SAAO |   C |   180 | 17.0 |        
   15586 |         MASTER-SAAO |   C |   300 | 17.1 |  Coadd 
   15665 |         MASTER-SAAO |   C |    60 | 16.9 |        
   15744 |         MASTER-SAAO |   C |    60 | 16.7 |        
   15824 |         MASTER-SAAO |   C |    60 | 16.9 |        
   15884 |         MASTER-SAAO |   C |   180 | 17.2 |  Coadd 
   15903 |         MASTER-SAAO |   C |    60 | 16.9 |        
   15982 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16061 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16121 |         MASTER-SAAO |   C |   180 | 17.2 |  Coadd 
   16141 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16220 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16300 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16360 |         MASTER-SAAO |   C |   180 | 17.2 |  Coadd 
   16379 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16466 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16545 |         MASTER-SAAO |   C |    60 | 16.9 |        
   16605 |         MASTER-SAAO |   C |   180 | 17.0 |  Coadd 
   16624 |         MASTER-SAAO |   C |    60 | 16.7 |        
   16704 |         MASTER-SAAO |   C |    60 | 16.7 |        
   16783 |         MASTER-SAAO |   C |    60 | 16.8 |        
   16843 |         MASTER-SAAO |   C |   180 | 17.3 |  Coadd 
   16883 |         MASTER-SAAO |   C |    60 | 17.0 |        
   16982 |         MASTER-SAAO |   C |    60 | 17.0 |        
   17062 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18074 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18134 |         MASTER-SAAO |   C |   180 | 17.3 |  Coadd 
   18153 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18232 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18312 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18372 |         MASTER-SAAO |   C |   180 | 17.3 |  Coadd 
   18391 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18470 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18549 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18609 |         MASTER-SAAO |   C |   180 | 17.3 |  Coadd 
   18628 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18708 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18787 |         MASTER-SAAO |   C |    60 | 17.0 |        
   18847 |         MASTER-SAAO |   C |   180 | 17.3 |  Coadd 
   18866 |         MASTER-SAAO |   C |    60 | 17.0 |        
   19241 |         MASTER-SAAO |   C |    60 | 17.2 |        
   19350 |         MASTER-SAAO |   C |   120 | 17.4 |        
   19470 |         MASTER-SAAO |   C |   360 | 17.5 |  Coadd 
   19489 |         MASTER-SAAO |   C |   120 | 17.3 |        
   19628 |         MASTER-SAAO |   C |   120 | 17.3 |        
   19767 |         MASTER-SAAO |   C |   120 | 17.3 |        
   19827 |         MASTER-SAAO |   C |   240 | 17.4 |  Coadd 
   19877 |         MASTER-SAAO |   C |    60 | 17.2 |        
   19956 |         MASTER-SAAO |   C |    60 | 17.1 |        
   20040 |         MASTER-SAAO |   C |    60 | 17.1 |        
   20100 |         MASTER-SAAO |   C |   180 | 17.4 |  Coadd 
   20120 |         MASTER-SAAO |   C |    60 | 17.1 |        
   20330 |         MASTER-SAAO |   C |    60 | 17.1 |        
   20439 |         MASTER-SAAO |   C |   120 | 17.1 |        
   20529 |         MASTER-SAAO |   C |   300 | 17.3 |  Coadd 
   20579 |         MASTER-SAAO |   C |   120 | 17.1 |        
   20688 |         MASTER-SAAO |   C |    60 | 16.9 |        
   35180 |         MASTER-OAFA |   C |   180 | 16.2 |        
   35360 |         MASTER-OAFA |   C |   540 | 16.5 |  Coadd 
   35374 |         MASTER-OAFA |   C |   180 | 16.4 |        
   35615 |         MASTER-OAFA |   C |   180 | 16.2 |        
   35801 |         MASTER-OAFA |   C |   180 | 16.4 |        
   35997 |         MASTER-OAFA |   C |   180 | 16.5 |        
   36194 |         MASTER-OAFA |   C |   180 | 16.5 |        
   36450 |         MASTER-OAFA |   C |   180 | 16.5 |        
   37275 |         MASTER-OAFA |   C |   180 | 15.7 |        
   37461 |         MASTER-OAFA |   C |   180 | 15.5 |        
   37647 |         MASTER-OAFA |   C |   180 | 15.3 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 12042
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 INTEGRAL GRB250211.89 (trigger No 11044,18h 25m 33.49s , -31d 57m 36.2s, R=0.0533333) errorbox  12195 sec after notice time and 12210 sec after trigger time at 2025-02-12 00:51:28 UT, with upper limit up to  16.7 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -36.1 deg. 

The galactic latitude b = -10 deg., longitude l =  2 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2775663

We obtain a following upper limits.  

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

   12300 |         MASTER-SAAO |   C |   180 | 16.1 |        
   12480 |         MASTER-SAAO |   C |   540 | 15.8 |  Coadd 
   12500 |         MASTER-SAAO |   C |   180 | 16.2 |        
   12699 |         MASTER-SAAO |   C |   180 | 16.4 |        
   12904 |         MASTER-SAAO |   C |   180 | 16.4 |        
   13103 |         MASTER-SAAO |   C |   180 | 16.5 |        
   13302 |         MASTER-SAAO |   C |   180 | 16.6 |        
   13502 |         MASTER-SAAO |   C |   180 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 12041
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 INTEGRAL GRB250211.89 (trigger No 11044,18h 25m 33.49s , -31d 57m 36.2s, R=0.0533333) errorbox  12195 sec after notice time and 12210 sec after trigger time at 2025-02-12 00:51:28 UT, with upper limit up to  16.7 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -36.1 deg. 

The galactic latitude b = -10 deg., longitude l =  2 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2775663

We obtain a following upper limits.  

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

   12300 |         MASTER-SAAO |   C |   180 | 16.1 |        
   12480 |         MASTER-SAAO |   C |   540 | 15.8 |  Coadd 
   12500 |         MASTER-SAAO |   C |   180 | 16.2 |        
   12699 |         MASTER-SAAO |   C |   180 | 16.4 |        
   12904 |         MASTER-SAAO |   C |   180 | 16.4 |        
   13103 |         MASTER-SAAO |   C |   180 | 16.5 |        
   13302 |         MASTER-SAAO |   C |   180 | 16.6 |        
   13502 |         MASTER-SAAO |   C |   180 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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



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  ID = 12040
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 INTEGRAL GRB250211.89 (trigger No 11044,18h 25m 33.49s , -31d 57m 36.2s, R=0.0533333) errorbox  12195 sec after notice time and 12210 sec after trigger time at 2025-02-12 00:51:28 UT, with upper limit up to  16.7 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -36.1 deg. 

The galactic latitude b = -10 deg., longitude l =  2 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2775663

We obtain a following upper limits.  

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

   12300 |         MASTER-SAAO |   C |   180 | 16.1 |        
   12480 |         MASTER-SAAO |   C |   540 | 15.8 |  Coadd 
   12500 |         MASTER-SAAO |   C |   180 | 16.2 |        
   12699 |         MASTER-SAAO |   C |   180 | 16.4 |        
   12904 |         MASTER-SAAO |   C |   180 | 16.4 |        
   13103 |         MASTER-SAAO |   C |   180 | 16.5 |        
   13302 |         MASTER-SAAO |   C |   180 | 16.6 |        
   13502 |         MASTER-SAAO |   C |   180 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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

MASTER, 2002-2025

MASTER Net MASTER Database: GRB250211.89 page

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Search: proc_data raw_data stars sn lc Moving objects Transients Trans_alert(SWIFT) Short Two tube Tr. difference SN CND Asteroids wide_field Diff Transients + Vis. Gal. Transients + All Gal. GCN Transients.

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
Manual control | Planner | Planner Results | Planner NET

General:
SN list | Sky map | Add asteroid
Meteo | Focus | MASTER page
Users list | Users statistic | Logout

Search: