GRB240421.40 page :: MASTER Database

MASTER Net MASTER Database: GRB240421.40 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

SWIFT GRB240421.40

Trignum

1223470

Trigger time

2024-04-21 09:42:54.05

Notice time

2024-04-21 09:43:23.423276

Coord, eb

(19h 58m 44.59s , -14d 52m 43.0s) , 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You are viewing outdated information, relevant error box is here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
2430221	2024-04-21 09:46:29.879837	19^h 58^m 48.72^s -14^d 52^m 15.6^s	SWIFT	0	alert	1223470	11	68	alert
2430233	2024-04-21 09:58:42.573998	19^h 58^m 48.24^s -14^d 51^m 36.0^s	SWIFT	0.0005	alert	1223470	10	67	alert
2430219	2024-04-21 09:43:23.423276	19^h 58^m 44.59^s -14^d 52^m 43.0^s	SWIFT	0.05	alert	1223470	6	61	alert

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

Synchronous WFC images

Distance	datetime	coord2000	observatory	links

Errorbox center visibility at MASTER facilities

trigger

notice

notice+1hr

now

2024-04-21 09:42:54 (JD 2460421.904792)

Siderial time 2.220126 h

Ra 19:58:44.59 Dec -14:52:43.00
(299.685792d, -14.878611d)

Rise 2024-04-21 22:53:37

Transit 2024-04-21 03:29:27

Set 2024-04-21 08:01:21

Amur

Object: Altitude: -54.45 Azimuth: 185.79

Sun: Altitude: 6.75 Azimuth: 100.64

Moon: Altitude: 18.56 Azimuth: 294.07

Tunka

Object: Altitude: -49.46 Azimuth: 147.91

Sun: Altitude: 22.05 Azimuth: 81.22

Moon: Altitude: 3.40 Azimuth: 274.50

Kislovodsk

Object: Altitude: -16.32 Azimuth: 84.83

Sun: Altitude: 57.32 Azimuth: 16.31

Moon: Altitude: -36.33 Azimuth: 225.53

Tavrida

Object: Altitude: -10.42 Azimuth: 79.32

Sun: Altitude: 57.25 Azimuth: 0.74

Moon: Altitude: -39.54 Azimuth: 215.48

SAAO

Object: Altitude: 18.89 Azimuth: 84.01

Sun: Altitude: 43.98 Azimuth: 197.52

Moon: Altitude: -55.14 Azimuth: 336.11

IAC

Object: Altitude: 32.34 Azimuth: 46.67

Sun: Altitude: 40.59 Azimuth: 278.68

Moon: Altitude: -53.67 Azimuth: 136.77

Argentina

Object: Altitude: 69.16 Azimuth: 218.77

Sun: Altitude: -17.18 Azimuth: 266.34

Moon: Altitude: -11.17 Azimuth: 82.84

Mexico

Object: Altitude: 20.47 Azimuth: 303.00

Sun: Altitude: -34.81 Azimuth: 224.46

Moon: Altitude: 23.50 Azimuth: 74.68

Ural

Object: Altitude: -26.24 Azimuth: 103.53

Sun: Altitude: 40.75 Azimuth: 34.39

Moon: Altitude: -19.62 Azimuth: 236.92

Vostryakovo

Object: Altitude: -14.35 Azimuth: 84.49

Sun: Altitude: 46.47 Azimuth: 5.98

Moon: Altitude: -29.45 Azimuth: 215.51

Gal. latitude: -22.040966 Gal. longitude: 27.136253

Dist. to Sun: 92.680500

Dist. to Moon: 115.586689

Moon coord.: (183.111126 d, -0.108773 d)

Sun coord.: (29.289960 d, 11.979937 d)

Lunar disk: 0.939449

Lunar phase: 28.490183

Lunar bright limb: 295.506045

No SN in this field

2024-04-21 09:43:23 (JD 2460421.905127)

Siderial time 2.228204 h

Ra 19:58:44.59 Dec -14:52:43.00
(299.685792d, -14.878611d)

Rise 2024-04-21 22:53:37

Transit 2024-04-21 03:29:27

Set 2024-04-21 08:01:21

Amur

Object: Altitude: -54.44 Azimuth: 185.99

Sun: Altitude: 6.67 Azimuth: 100.74

Moon: Altitude: 18.63 Azimuth: 294.17

Tunka

Object: Altitude: -49.50 Azimuth: 148.08

Sun: Altitude: 21.97 Azimuth: 81.32

Moon: Altitude: 3.47 Azimuth: 274.60

Kislovodsk

Object: Altitude: -16.41 Azimuth: 84.91

Sun: Altitude: 57.29 Azimuth: 16.52

Moon: Altitude: -36.27 Azimuth: 225.66

Tavrida

Object: Altitude: -10.51 Azimuth: 79.40

Sun: Altitude: 57.25 Azimuth: 0.96

Moon: Altitude: -39.49 Azimuth: 215.62

SAAO

Object: Altitude: 18.79 Azimuth: 83.95

Sun: Altitude: 44.01 Azimuth: 197.36

Moon: Altitude: -55.10 Azimuth: 335.92

IAC

Object: Altitude: 32.27 Azimuth: 46.78

Sun: Altitude: 40.70 Azimuth: 278.75

Moon: Altitude: -53.75 Azimuth: 136.93

Argentina

Object: Altitude: 69.22 Azimuth: 218.50

Sun: Altitude: -17.08 Azimuth: 266.28

Moon: Altitude: -11.27 Azimuth: 82.77

Mexico

Object: Altitude: 20.56 Azimuth: 303.09

Sun: Altitude: -34.74 Azimuth: 224.58

Moon: Altitude: 23.40 Azimuth: 74.75

Ural

Object: Altitude: -26.31 Azimuth: 103.64

Sun: Altitude: 40.72 Azimuth: 34.53

Moon: Altitude: -19.56 Azimuth: 237.03

Vostryakovo

Object: Altitude: -14.41 Azimuth: 84.59

Sun: Altitude: 46.47 Azimuth: 6.15

Moon: Altitude: -29.41 Azimuth: 215.64

Gal. latitude: -22.040966 Gal. longitude: 27.136253

Dist. to Sun: 92.680826

Dist. to Moon: 115.582782

Moon coord.: (183.114634 d, -0.110683 d)

Sun coord.: (29.290274 d, 11.980051 d)

Lunar disk: 0.939465

Lunar phase: 28.486532

Lunar bright limb: 295.505619

No SN in this field

2024-04-21 10:43:23 (JD 2460421.946794)

Siderial time 3.230942 h

Ra 19:58:44.59 Dec -14:52:43.00
(299.685792d, -14.878611d)

Rise 2024-04-21 22:53:37

Transit 2024-04-21 03:29:27

Set 2024-04-21 08:01:21

Amur

Object: Altitude: -51.48 Azimuth: 209.74

Sun: Altitude: -2.49 Azimuth: 112.22

Moon: Altitude: 26.43 Azimuth: 307.57

Tunka

Object: Altitude: -52.78 Azimuth: 170.75

Sun: Altitude: 12.73 Azimuth: 93.29

Moon: Altitude: 12.14 Azimuth: 286.47

Kislovodsk

Object: Altitude: -27.26 Azimuth: 95.35

Sun: Altitude: 52.10 Azimuth: 40.44

Moon: Altitude: -28.05 Azimuth: 239.96

Tavrida

Object: Altitude: -21.13 Azimuth: 89.73

Sun: Altitude: 54.67 Azimuth: 26.93

Moon: Altitude: -32.54 Azimuth: 231.54

SAAO

Object: Altitude: 6.28 Azimuth: 76.35

Sun: Altitude: 45.57 Azimuth: 176.75

Moon: Altitude: -47.87 Azimuth: 315.39

IAC

Object: Altitude: 21.75 Azimuth: 58.07

Sun: Altitude: 53.52 Azimuth: 289.34

Moon: Altitude: -60.69 Azimuth: 160.91

Argentina

Object: Altitude: 72.99 Azimuth: 173.93

Sun: Altitude: -4.46 Azimuth: 258.64

Moon: Altitude: -23.29 Azimuth: 74.06

Mexico

Object: Altitude: 30.59 Azimuth: 314.77

Sun: Altitude: -24.75 Azimuth: 237.00

Moon: Altitude: 11.00 Azimuth: 82.86

Ural

Object: Altitude: -33.94 Azimuth: 117.97

Sun: Altitude: 35.15 Azimuth: 51.79

Moon: Altitude: -12.66 Azimuth: 250.44

Vostryakovo

Object: Altitude: -22.94 Azimuth: 97.03

Sun: Altitude: 44.06 Azimuth: 26.77

Moon: Altitude: -23.95 Azimuth: 230.82

Gal. latitude: -22.040966 Gal. longitude: 27.136253

Dist. to Sun: 92.721263

Dist. to Moon: 115.097678

Moon coord.: (183.550138 d, -0.347726 d)

Sun coord.: (29.329233 d, 11.994153 d)

Lunar disk: 0.941337

Lunar phase: 28.033253

Lunar bright limb: 295.450955

No SN in this field

2024-05-18 04:44:01 (JD 2460448.697234)

Siderial time 22.999264 h

Ra 19:58:44.59 Dec -14:52:43.00
(299.685792d, -14.878611d)

Rise 2024-05-18 21:07:27

Transit 2024-05-18 01:43:18

Set 2024-05-18 06:15:11

Amur

Object: Altitude: -39.44 Azimuth: 118.08

Sun: Altitude: 55.52 Azimuth: 34.17

Moon: Altitude: -6.10 Azimuth: 258.30

Tunka

Object: Altitude: -24.43 Azimuth: 96.96

Sun: Altitude: 57.57 Azimuth: 351.74

Moon: Altitude: -19.73 Azimuth: 237.55

Kislovodsk

Object: Altitude: 15.62 Azimuth: 50.45

Sun: Altitude: 31.13 Azimuth: 272.06

Moon: Altitude: -43.03 Azimuth: 169.22

Tavrida

Object: Altitude: 19.39 Azimuth: 42.97

Sun: Altitude: 25.04 Azimuth: 266.68

Moon: Altitude: -40.38 Azimuth: 158.31

SAAO

Object: Altitude: 58.74 Azimuth: 117.30

Sun: Altitude: -7.88 Azimuth: 251.76

Moon: Altitude: -49.36 Azimuth: 49.20

IAC

Object: Altitude: 45.98 Azimuth: 347.68

Sun: Altitude: -17.95 Azimuth: 234.93

Moon: Altitude: -18.83 Azimuth: 103.89

Argentina

Object: Altitude: 31.70 Azimuth: 268.40

Sun: Altitude: -77.51 Azimuth: 347.20

Moon: Altitude: 23.33 Azimuth: 109.13

Mexico

Object: Altitude: -18.33 Azimuth: 276.68

Sun: Altitude: -27.51 Azimuth: 139.00

Moon: Altitude: 56.33 Azimuth: 36.39

Ural

Object: Altitude: -0.68 Azimuth: 63.02

Sun: Altitude: 38.52 Azimuth: 296.11

Moon: Altitude: -29.81 Azimuth: 190.55

Vostryakovo

Object: Altitude: 10.00 Azimuth: 44.42

Sun: Altitude: 27.35 Azimuth: 274.87

Moon: Altitude: -31.01 Azimuth: 165.30

Gal. latitude: -22.040966 Gal. longitude: 27.136253

Dist. to Sun: 118.506634

Dist. to Moon: 121.506208

Moon coord.: (177.760078 d, 2.693509 d)

Sun coord.: (55.128653 d, 19.587328 d)

Lunar disk: 0.746859

Lunar phase: 60.414715

Lunar bright limb: 294.331021

No SN in this field

Recent coverage and limits telegrams

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

  ID = 9997
TYPE = 35
DAYS = 1


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 240421B ( M. A. Williams et al., GCN 36208) errorbox  52346 sec after notice time and 52368 sec after trigger time at 2024-04-22 00:15:42 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -20.3 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the SWIFT GRB 240421B errorbox  56072 sec after notice time and 56094 sec after trigger time at 2024-04-22 01:17:48 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -15.4 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the SWIFT GRB 240421B errorbox  56158 sec after notice time and 56180 sec after trigger time at 2024-04-22 01:19:14 UT, with upper limit up to  18.9 mag. The observations began at zenith distance = 47 deg. The sun  altitude  is -47.9 deg. 

The galactic latitude b = -22 deg., longitude l = 27 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2430219

We obtain a following upper limits.  

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

   52459 |   MASTER-Kislovodsk |   C |   180 | 15.8 |        
   52459 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
   52659 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   52659 |   MASTER-Kislovodsk |   C |   180 | 17.2 |        
   52839 |   MASTER-Kislovodsk |   C |   540 | 17.9 |  Coadd 
   52860 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   52860 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   53060 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
   53060 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   53261 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   53261 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   53441 |   MASTER-Kislovodsk |   C |   540 | 18.1 |  Coadd 
   53461 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   53461 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   53662 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   53662 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   54000 |   MASTER-Kislovodsk |   C |   120 | 16.8 |        
   54000 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54140 |   MASTER-Kislovodsk |   C |   120 | 16.9 |        
   54140 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54281 |   MASTER-Kislovodsk |   C |   120 | 16.9 |        
   54281 |   MASTER-Kislovodsk |   C |   120 | 16.8 |        
   54421 |   MASTER-Kislovodsk |   C |   120 | 16.8 |        
   54421 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54561 |   MASTER-Kislovodsk |   C |   120 | 16.9 |        
   54561 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54702 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54702 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   54872 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   54872 |   MASTER-Kislovodsk |   C |   180 | 17.1 |        
   55043 |   MASTER-Kislovodsk |   C |   120 | 16.8 |        
   55043 |   MASTER-Kislovodsk |   C |   120 | 17.1 |        
   55183 |   MASTER-Kislovodsk |   C |   120 | 16.6 |        
   55183 |   MASTER-Kislovodsk |   C |   120 | 17.1 |        
   55323 |   MASTER-Kislovodsk |   C |   120 | 16.6 |        
   55323 |   MASTER-Kislovodsk |   C |   120 | 17.1 |        
   55464 |   MASTER-Kislovodsk |   C |   120 | 16.6 |        
   55464 |   MASTER-Kislovodsk |   C |   120 | 17.1 |        
   55604 |   MASTER-Kislovodsk |   C |   120 | 16.6 |        
   55604 |   MASTER-Kislovodsk |   C |   120 | 17.1 |        
   55744 |   MASTER-Kislovodsk |   C |   120 | 16.3 |        
   55744 |   MASTER-Kislovodsk |   C |   120 | 17.0 |        
   55885 |   MASTER-Kislovodsk |   C |   120 | 16.3 |        
   55885 |   MASTER-Kislovodsk |   C |   120 | 16.9 |        
   56025 |   MASTER-Kislovodsk |   C |   120 | 16.0 |        
   56025 |   MASTER-Kislovodsk |   C |   120 | 16.9 |        
   56184 |      MASTER-Tavrida |   C |   180 | 13.7 |        
   56195 |   MASTER-Kislovodsk |   C |   180 | 14.9 |        
   56195 |   MASTER-Kislovodsk |   C |   180 | 16.7 |        
   56271 |         MASTER-SAAO |   C |   180 | 11.9 |        
   56366 |   MASTER-Kislovodsk |   C |   120 | 14.7 |        
   56366 |   MASTER-Kislovodsk |   C |   120 | 16.4 |        
   56516 |   MASTER-Kislovodsk |   C |   120 | 16.3 |        
   56656 |   MASTER-Kislovodsk |   C |   120 | 14.9 |        
   57417 |      MASTER-Tavrida |   C |   180 | 15.4 |        
   59420 |         MASTER-SAAO |   C |   180 | 13.1 |        
   59600 |         MASTER-SAAO |   C |   540 | 17.0 |  Coadd 
   59420 |         MASTER-SAAO |   C |   180 | 12.5 |        
   59600 |         MASTER-SAAO |   C |   540 | 16.6 |  Coadd 
   59619 |         MASTER-SAAO |   C |   180 | 14.0 |        
   59619 |         MASTER-SAAO |   C |   180 | 13.6 |        
   60026 |         MASTER-SAAO |   C |   180 | 15.4 |        
   60026 |         MASTER-SAAO |   C |   180 | 15.0 |        
   60650 |         MASTER-SAAO |   C |   180 | 17.7 |        
   60650 |         MASTER-SAAO |   C |   180 | 17.2 |        
   60849 |         MASTER-SAAO |   C |   180 | 18.0 |        
   60849 |         MASTER-SAAO |   C |   180 | 17.6 |        
   61377 |         MASTER-SAAO |   C |   180 | 17.7 |        
   61377 |         MASTER-SAAO |   C |   180 | 17.3 |        
   63301 |         MASTER-SAAO |   C |   180 | 18.9 |        
   63301 |         MASTER-SAAO |   C |   180 | 18.6 |        
   63501 |         MASTER-SAAO |   C |   180 | 17.9 |        
   63501 |         MASTER-SAAO |   C |   180 | 17.7 |        
   64543 |         MASTER-SAAO |   C |   180 | 17.3 |        
   64543 |         MASTER-SAAO |   C |   180 | 17.5 |        
   64743 |         MASTER-SAAO |   C |   180 | 17.8 |        
   64743 |         MASTER-SAAO |   C |   180 | 17.9 |        
   65826 |         MASTER-SAAO |   C |   180 | 17.6 |        
   65826 |         MASTER-SAAO |   C |   180 | 17.9 |        
   66025 |         MASTER-SAAO |   C |   180 | 18.2 |        
   66025 |         MASTER-SAAO |   C |   180 | 17.8 |        
   67023 |         MASTER-SAAO |   C |   180 | 17.2 |        
   67023 |         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 = 9989
TYPE = 35
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 240421B ( M. A. Williams et al., GCN 36208) errorbox  52346 sec after notice time and 52368 sec after trigger time at 2024-04-22 00:15:42 UT, with upper limit up to  16.5 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -20.3 deg. 

The galactic latitude b = -22 deg., longitude l = 27 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2430219

We obtain a following upper limits.  

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

   52459 |   MASTER-Kislovodsk |   C |   180 | 15.8 |        
   52459 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9988
TYPE = 35
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 240421B ( M. A. Williams et al., GCN 36208) errorbox  52346 sec after notice time and 52368 sec after trigger time at 2024-04-22 00:15:42 UT, with upper limit up to  16.5 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -20.3 deg. 

The galactic latitude b = -22 deg., longitude l = 27 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2430219

We obtain a following upper limits.  

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

   52459 |   MASTER-Kislovodsk |   C |   180 | 15.8 |        
   52459 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 9987
TYPE = 34
DAYS = 0


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT GRB 240421B ( M. A. Williams et al., GCN 36208) errorbox  52346 sec after notice time and 52368 sec after trigger time at 2024-04-22 00:15:42 UT, with upper limit up to  16.5 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -20.3 deg. 

The galactic latitude b = -22 deg., longitude l = 27 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2430219

We obtain a following upper limits.  

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

   52459 |   MASTER-Kislovodsk |   C |   180 | 15.8 |        
   52459 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
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: GRB240421.40 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 | LVC status
Manual control | Planner | Planner Results | Planner NET

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

Search: