GRB230427.44 page :: MASTER Database

MASTER Net MASTER Database: GRB230427.44 page

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

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

show search form

Name

SWIFT GRB230427.44

Trignum

1165948

Trigger time

2023-04-27 10:31:51.98

Notice time

2023-04-27 10:32:58.261019

Coord, eb

(10h 13m 17.76s , +48d 10m 48.0s) , 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)
 ??

All alerts for this trigger

id	noticetime	coord2000	satel	errorbox	type	trigger	seq	trig_type	links
2213028	2023-04-27 10:39:56.954641	10^h 13^m 15.12^s +48^d 12^m 14.4^s	SWIFT	0.000194444	alert	1165948	1	81	alert
2213009	2023-04-27 10:34:05.986158	10^h 13^m 23.09^s +48^d 09^m 45.7^s	SWIFT	0	alert	1165948	2	68	alert
2213038	2023-04-27 10:44:11.000994	10^h 13^m 14.88^s +48^d 12^m 14.4^s	SWIFT	0.0005	alert	1165948	2	67	alert
2213007	2023-04-27 10:32:58.261019	10^h 13^m 17.76^s +48^d 10^m 48.0^s	SWIFT	0.05	alert	1165948	1	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

2023-04-27 10:31:51 (JD 2460061.938785)

Siderial time 3.382656 h

Ra 10:13:17.76 Dec 48:10:48.00
(153.324000d, 48.180000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 81.44 Azimuth: 279.56

Sun: Altitude: 0.46 Azimuth: 111.21

Moon: Altitude: 61.96 Azimuth: 30.81

Tunka

Object: Altitude: 66.12 Azimuth: 263.91

Sun: Altitude: 15.72 Azimuth: 92.34

Moon: Altitude: 62.25 Azimuth: 342.22

Kislovodsk

Object: Altitude: 26.80 Azimuth: 227.76

Sun: Altitude: 54.84 Azimuth: 37.95

Moon: Altitude: 31.35 Azimuth: 264.25

Tavrida

Object: Altitude: 23.11 Azimuth: 224.12

Sun: Altitude: 57.11 Azimuth: 23.49

Moon: Altitude: 25.46 Azimuth: 259.31

SAAO

Object: Altitude: -42.49 Azimuth: 231.99

Sun: Altitude: 43.90 Azimuth: 180.45

Moon: Altitude: -14.05 Azimuth: 249.16

IAC

Object: Altitude: -10.72 Azimuth: 195.56

Sun: Altitude: 52.15 Azimuth: 284.71

Moon: Altitude: -17.35 Azimuth: 227.95

Argentina

Object: Altitude: -62.35 Azimuth: 134.91

Sun: Altitude: -7.57 Azimuth: 258.51

Moon: Altitude: -83.02 Azimuth: 10.59

Mexico

Object: Altitude: 11.22 Azimuth: 140.12

Sun: Altitude: -25.43 Azimuth: 233.64

Moon: Altitude: -20.83 Azimuth: 139.07

Ural

Object: Altitude: 43.17 Azimuth: 244.44

Sun: Altitude: 37.83 Azimuth: 49.81

Moon: Altitude: 40.82 Azimuth: 287.96

Vostryakovo

Object: Altitude: 32.14 Azimuth: 230.28

Sun: Altitude: 46.38 Azimuth: 23.82

Moon: Altitude: 29.11 Azimuth: 267.56

Gal. latitude: 53.465954 Gal. longitude: 167.730540

Dist. to Sun: 97.921558

Dist. to Moon: 32.067897

Moon coord.: (125.206543 d, 24.928482 d)

Sun coord.: (34.267027 d, 13.722483 d)

Lunar disk: 0.458540

Lunar phase: 94.756399

Lunar bright limb: 282.885217

No SN in this field

2023-04-27 10:32:58 (JD 2460061.939560)

Siderial time 3.401318 h

Ra 10:13:17.76 Dec 48:10:48.00
(153.324000d, 48.180000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 81.61 Azimuth: 279.98

Sun: Altitude: 0.30 Azimuth: 111.42

Moon: Altitude: 61.87 Azimuth: 31.30

Tunka

Object: Altitude: 66.29 Azimuth: 264.09

Sun: Altitude: 15.54 Azimuth: 92.56

Moon: Altitude: 62.30 Azimuth: 342.74

Kislovodsk

Object: Altitude: 26.95 Azimuth: 227.89

Sun: Altitude: 54.71 Azimuth: 38.36

Moon: Altitude: 31.54 Azimuth: 264.43

Tavrida

Object: Altitude: 23.24 Azimuth: 224.26

Sun: Altitude: 57.03 Azimuth: 23.97

Moon: Altitude: 25.64 Azimuth: 259.48

SAAO

Object: Altitude: -42.30 Azimuth: 231.97

Sun: Altitude: 43.90 Azimuth: 180.07

Moon: Altitude: -13.83 Azimuth: 249.04

IAC

Object: Altitude: -10.65 Azimuth: 195.74

Sun: Altitude: 52.39 Azimuth: 284.92

Moon: Altitude: -17.18 Azimuth: 228.13

Argentina

Object: Altitude: -62.52 Azimuth: 135.09

Sun: Altitude: -7.34 Azimuth: 258.37

Moon: Altitude: -83.05 Azimuth: 8.59

Mexico

Object: Altitude: 11.06 Azimuth: 140.23

Sun: Altitude: -25.24 Azimuth: 233.85

Moon: Altitude: -20.99 Azimuth: 139.28

Ural

Object: Altitude: 43.31 Azimuth: 244.61

Sun: Altitude: 37.71 Azimuth: 50.12

Moon: Altitude: 40.96 Azimuth: 288.23

Vostryakovo

Object: Altitude: 32.26 Azimuth: 230.44

Sun: Altitude: 46.32 Azimuth: 24.20

Moon: Altitude: 29.26 Azimuth: 267.78

Gal. latitude: 53.465954 Gal. longitude: 167.730540

Dist. to Sun: 97.920938

Dist. to Moon: 32.064281

Moon coord.: (125.216419 d, 24.926393 d)

Sun coord.: (34.267761 d, 13.722731 d)

Lunar disk: 0.458614

Lunar phase: 94.747951

Lunar bright limb: 282.889311

No SN in this field

2023-04-27 11:32:58 (JD 2460061.981227)

Siderial time 4.404056 h

Ra 10:13:17.76 Dec 48:10:48.00
(153.324000d, 48.180000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 87.27 Azimuth: 39.45

Sun: Altitude: -8.19 Azimuth: 123.31

Moon: Altitude: 55.49 Azimuth: 53.64

Tunka

Object: Altitude: 75.57 Azimuth: 275.94

Sun: Altitude: 6.39 Azimuth: 104.13

Moon: Altitude: 62.65 Azimuth: 11.44

Kislovodsk

Object: Altitude: 35.41 Azimuth: 234.18

Sun: Altitude: 46.65 Azimuth: 57.65

Moon: Altitude: 41.94 Azimuth: 274.53

Tavrida

Object: Altitude: 31.15 Azimuth: 231.18

Sun: Altitude: 50.86 Azimuth: 46.56

Moon: Altitude: 35.82 Azimuth: 269.22

SAAO

Object: Altitude: -32.41 Azimuth: 230.01

Sun: Altitude: 41.72 Azimuth: 160.39

Moon: Altitude: -2.62 Azimuth: 242.07

IAC

Object: Altitude: -6.05 Azimuth: 204.73

Sun: Altitude: 64.62 Azimuth: 300.38

Moon: Altitude: -7.11 Azimuth: 236.81

Argentina

Object: Altitude: -70.41 Azimuth: 150.79

Sun: Altitude: 4.93 Azimuth: 250.50

Moon: Altitude: -76.33 Azimuth: 297.38

Mexico

Object: Altitude: 3.38 Azimuth: 146.71

Sun: Altitude: -14.22 Azimuth: 243.99

Moon: Altitude: -28.17 Azimuth: 151.42

Ural

Object: Altitude: 50.95 Azimuth: 254.15

Sun: Altitude: 30.82 Azimuth: 65.69

Moon: Altitude: 47.95 Azimuth: 303.91

Vostryakovo

Object: Altitude: 39.25 Azimuth: 239.30

Sun: Altitude: 41.58 Azimuth: 43.40

Moon: Altitude: 37.38 Azimuth: 280.20

Gal. latitude: 53.465954 Gal. longitude: 167.730540

Dist. to Sun: 97.887626

Dist. to Moon: 31.872949

Moon coord.: (125.746508 d, 24.813192 d)

Sun coord.: (34.307178 d, 13.736059 d)

Lunar disk: 0.462562

Lunar phase: 94.294075

Lunar bright limb: 283.108554

No SN in this field

2024-05-05 00:11:48 (JD 2460435.508194)

Siderial time 17.595670 h

Ra 10:13:17.76 Dec 48:10:48.00
(153.324000d, 48.180000d)

Rise n/a

Transit n/a

Set n/a

Amur

Object: Altitude: 10.06 Azimuth: 193.70

Sun: Altitude: 38.48 Azimuth: 293.48

Moon: Altitude: 38.79 Azimuth: 349.29

Tunka

Object: Altitude: 10.05 Azimuth: 177.33

Sun: Altitude: 23.28 Azimuth: 273.12

Moon: Altitude: 30.98 Azimuth: 320.89

Kislovodsk

Object: Altitude: 17.93 Azimuth: 140.77

Sun: Altitude: -16.43 Azimuth: 226.70

Moon: Altitude: -2.64 Azimuth: 268.01

Tavrida

Object: Altitude: 22.70 Azimuth: 136.28

Sun: Altitude: -19.86 Azimuth: 219.07

Moon: Altitude: -8.63 Azimuth: 261.92

SAAO

Object: Altitude: -25.88 Azimuth: 132.31

Sun: Altitude: -62.26 Azimuth: 299.62

Moon: Altitude: -20.68 Azimuth: 284.36

IAC

Object: Altitude: 42.65 Azimuth: 130.90

Sun: Altitude: -43.87 Azimuth: 163.39

Moon: Altitude: -51.53 Azimuth: 228.30

Argentina

Object: Altitude: 9.95 Azimuth: 177.52

Sun: Altitude: -29.31 Azimuth: 91.68

Moon: Altitude: -49.98 Azimuth: 41.34

Mexico

Object: Altitude: 56.96 Azimuth: 227.95

Sun: Altitude: 22.01 Azimuth: 96.25

Moon: Altitude: -20.44 Azimuth: 102.47

Ural

Object: Altitude: 22.33 Azimuth: 147.91

Sun: Altitude: 0.17 Azimuth: 239.36

Moon: Altitude: 7.09 Azimuth: 281.80

Vostryakovo

Object: Altitude: 28.60 Azimuth: 134.77

Sun: Altitude: -10.11 Azimuth: 220.66

Moon: Altitude: -4.86 Azimuth: 263.62

Gal. latitude: 53.465954 Gal. longitude: 167.730540

Dist. to Sun: 91.274349

Dist. to Moon: 126.112248

Moon coord.: (2.126270 d, -0.390603 d)

Sun coord.: (42.201385 d, 16.243319 d)

Lunar disk: 0.134293

Lunar phase: 137.005090

Lunar bright limb: 65.267250

No SN in this field

Recent coverage and limits telegrams

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

  ID = 8096
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 GRB230427.44 (trigger No 1165948,10h 13m 17.76s , +48d 10m 48.0s, R=0.05) errorbox  24243 sec after notice time and 24285 sec after trigger time at 2023-04-27 17:16:37 UT, with upper limit up to  19.8 mag. Observations started at twilight.  The observations began at zenith distance =  6 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 53 deg., longitude l = 168 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2213007

We obtain a following upper limits.  

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

   24376 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   24556 |   MASTER-Kislovodsk |   C |   540 | 19.1 |  Coadd 
   24376 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   24556 |   MASTER-Kislovodsk |   C |   540 | 19.8 |  Coadd 
   24736 |   MASTER-Kislovodsk |   C |   900 | 19.4 |  Coadd 
   24916 |   MASTER-Kislovodsk |   C |  1260 | 19.8 |  Coadd 
   25366 |   MASTER-Kislovodsk |   C |  2160 | 19.4 |  Coadd 
   24576 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   24777 |   MASTER-Kislovodsk |   C |   180 | 18.7 |        
   24777 |   MASTER-Kislovodsk |   C |   180 | 19.1 |        
   25178 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   25358 |   MASTER-Kislovodsk |   C |   540 | 19.0 |  Coadd 
   25178 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   25358 |   MASTER-Kislovodsk |   C |   540 | 19.3 |  Coadd 
   25379 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   25379 |   MASTER-Kislovodsk |   C |   180 | 19.3 |        
   26647 |   MASTER-Kislovodsk |   C |   180 | 18.1 |        
   26647 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   27854 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   27854 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   29069 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   29069 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   30303 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   30303 |   MASTER-Kislovodsk |   C |   180 | 18.2 |        
   31513 |   MASTER-Kislovodsk |   C |   180 | 18.0 |        
   31513 |   MASTER-Kislovodsk |   C |   180 | 18.4 |        
   32723 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   32723 |   MASTER-Kislovodsk |   C |   180 | 17.4 |        
   35337 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   35337 |   MASTER-Kislovodsk |   C |   180 | 17.8 |        
   36543 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   36543 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   37754 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   37754 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   38966 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   38966 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   40169 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   40169 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
   42596 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
   42596 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
   45015 |   MASTER-Kislovodsk |   C |   180 | 18.1 |        
   45015 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   46219 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
   46219 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   47555 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   47555 |   MASTER-Kislovodsk |   C |   180 | 17.9 |        
   48758 |   MASTER-Kislovodsk |   C |   180 | 17.8 |        
   48758 |   MASTER-Kislovodsk |   C |   180 | 18.1 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8092
TYPE = 35
DAYS = 0.5


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 GRB230427.44 (trigger No 1165948,10h 13m 17.76s , +48d 10m 48.0s, R=0.05) errorbox  24243 sec after notice time and 24285 sec after trigger time at 2023-04-27 17:16:37 UT, with upper limit up to  19.8 mag. Observations started at twilight.  The observations began at zenith distance =  6 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 53 deg., longitude l = 168 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2213007

We obtain a following upper limits.  

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

   24376 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   24556 |   MASTER-Kislovodsk |   C |   540 | 19.1 |  Coadd 
   24376 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   24556 |   MASTER-Kislovodsk |   C |   540 | 19.8 |  Coadd 
   24576 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   24777 |   MASTER-Kislovodsk |   C |   180 | 18.7 |        
   24777 |   MASTER-Kislovodsk |   C |   180 | 19.1 |        
   25178 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   25358 |   MASTER-Kislovodsk |   C |   540 | 19.0 |  Coadd 
   25178 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   25358 |   MASTER-Kislovodsk |   C |   540 | 19.3 |  Coadd 
   25379 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   25379 |   MASTER-Kislovodsk |   C |   180 | 19.3 |        
   26647 |   MASTER-Kislovodsk |   C |   180 | 18.1 |        
   26647 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   27854 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   27854 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
   29069 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   29069 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   30303 |   MASTER-Kislovodsk |   C |   180 | 18.5 |        
   30303 |   MASTER-Kislovodsk |   C |   180 | 18.2 |        
   31513 |   MASTER-Kislovodsk |   C |   180 | 18.0 |        
   31513 |   MASTER-Kislovodsk |   C |   180 | 18.4 |        
   32723 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   32723 |   MASTER-Kislovodsk |   C |   180 | 17.4 |        
   35337 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   35337 |   MASTER-Kislovodsk |   C |   180 | 17.8 |        
   36543 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   36543 |   MASTER-Kislovodsk |   C |   180 | 16.9 |        
   37754 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   37754 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   38966 |   MASTER-Kislovodsk |   C |   180 | 17.0 |        
   38966 |   MASTER-Kislovodsk |   C |   180 | 17.5 |        
   40169 |   MASTER-Kislovodsk |   C |   180 | 16.6 |        
   40169 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
   42596 |   MASTER-Kislovodsk |   C |   180 | 16.5 |        
   42596 |   MASTER-Kislovodsk |   C |   180 | 16.8 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8090
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 GRB230427.44 (trigger No 1165948,10h 13m 17.76s , +48d 10m 48.0s, R=0.05) errorbox  24243 sec after notice time and 24285 sec after trigger time at 2023-04-27 17:16:37 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance =  6 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 53 deg., longitude l = 168 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2213007

We obtain a following upper limits.  

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

   24376 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   24376 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8089
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 GRB230427.44 (trigger No 1165948,10h 13m 17.76s , +48d 10m 48.0s, R=0.05) errorbox  24243 sec after notice time and 24285 sec after trigger time at 2023-04-27 17:16:37 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance =  6 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 53 deg., longitude l = 168 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2213007

We obtain a following upper limits.  

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

   24376 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   24376 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 8088
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 GRB230427.44 (trigger No 1165948,10h 13m 17.76s , +48d 10m 48.0s, R=0.05) errorbox  24243 sec after notice time and 24285 sec after trigger time at 2023-04-27 17:16:37 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance =  6 deg. The sun  altitude  is -12.4 deg. 

The galactic latitude b = 53 deg., longitude l = 168 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2213007

We obtain a following upper limits.  

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

   24376 |   MASTER-Kislovodsk |   C |   180 | 18.3 |        
   24376 |   MASTER-Kislovodsk |   C |   180 | 18.8 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 18.6 |        
   24576 |   MASTER-Kislovodsk |   C |   180 | 19.0 |        
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: GRB230427.44 page

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: 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: