MASTER Net MASTER Database: GRB250109.26 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
Manual control | Planner | Planner Results | Planner NET

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

Search:

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


Name EP GRB250109.26
Trignum 1736403478
Trigger time 2025-01-09 06:17:58
Notice time 2025-01-09 09:24:37.475314
Coord, eb (05h 55m 13.44s , -12d 30m 00.0s) , 0.01
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
2739026 2025-01-09 09:24:37.475314 05h 55m 13.44s -12d 30m 00.0s EP 0.01 alert 1736403478 0 1115 alert

DAYS:

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

Synchronous WFC images
Distance datetime coord2000 observatory camera links
45.5 2025-01-09 06:16:27.509 08h 55m 19.39s -31d 48m 08.1s OAFA 29008 Database OAFA
88.8 2025-01-09 06:14:59.514 00h 00m 00.00s +00d 00m 00.0s OAFA 111342 Database OAFA
Errorbox center visibility at MASTER facilities
trigger notice notice+1hr now

2025-01-09 06:17:58 (JD 2460684.762477)

Siderial time 16.076903 h

Ra 05:55:13.44 Dec -12:30:00.00
( 88.806000d, -12.500000d)

Rise 2025-01-09 18:18:45

Transit 2025-01-09 23:06:18

Set 2025-01-09 03:57:47

Amur

Object: Altitude: -27.21 Azimuth: 256.20

Sun: Altitude: 9.19 Azimuth: 37.61

Moon: Altitude: 26.13 Azimuth: 268.08

Tunka

Object: Altitude: -40.32 Azimuth: 231.70

Sun: Altitude: 14.73 Azimuth: 15.45

Moon: Altitude: 11.38 Azimuth: 250.43

Kislovodsk

Object: Altitude: -53.14 Azimuth: 141.00

Sun: Altitude: 12.59 Azimuth: 318.39

Moon: Altitude: -22.44 Azimuth: 201.30

Tavrida

Object: Altitude: -48.18 Azimuth: 130.56

Sun: Altitude: 7.59 Azimuth: 311.80

Moon: Altitude: -23.29 Azimuth: 192.78

SAAO

Object: Altitude: -28.20 Azimuth: 50.89

Sun: Altitude: 31.23 Azimuth: 277.86

Moon: Altitude: -78.59 Azimuth: 2.99

IAC

Object: Altitude: -13.03 Azimuth: 82.66

Sun: Altitude: -21.59 Azimuth: 284.29

Moon: Altitude: -28.58 Azimuth: 139.16

Argentina

Object: Altitude: 44.16 Azimuth: 104.31

Sun: Altitude: -31.48 Azimuth: 334.05

Moon: Altitude: -10.26 Azimuth: 108.42

Mexico

Object: Altitude: 46.25 Azimuth: 6.14

Sun: Altitude: -72.16 Azimuth: 115.89

Moon: Altitude: 45.90 Azimuth: 88.82

Ural

Object: Altitude: -45.25 Azimuth: 172.04

Sun: Altitude: 7.57 Azimuth: 334.55

Moon: Altitude: -5.70 Azimuth: 215.38

Vostryakovo

Object: Altitude: -42.09 Azimuth: 142.65

Sun: Altitude: 1.99 Azimuth: 315.51

Moon: Altitude: -12.37 Azimuth: 195.62

Gal. latitude: -17.525197 Gal. longitude: 218.276910

Dist. to Sun: 139.392698

Dist. to Moon: 54.542621

Moon coord.: (44.978947 d, 20.985981 d)

Sun coord.: (290.454892 d, -22.114981 d)

Lunar disk: 0.747865

Lunar phase: 60.282097

Lunar bright limb: 255.695700

No SN in this field

2025-01-09 09:24:37 (JD 2460684.892095)

Siderial time 19.196254 h

Ra 05:55:13.44 Dec -12:30:00.00
( 88.806000d, -12.500000d)

Rise 2025-01-09 18:18:45

Transit 2025-01-09 23:06:18

Set 2025-01-09 03:57:47

Amur

Object: Altitude: 2.09 Azimuth: 292.53

Sun: Altitude: -15.11 Azimuth: 73.46

Moon: Altitude: 53.36 Azimuth: 310.89

Tunka

Object: Altitude: -13.12 Azimuth: 273.62

Sun: Altitude: -1.93 Azimuth: 55.54

Moon: Altitude: 39.17 Azimuth: 285.54

Kislovodsk

Object: Altitude: -52.54 Azimuth: 220.84

Sun: Altitude: 24.12 Azimuth: 2.29

Moon: Altitude: -1.06 Azimuth: 238.18

Tavrida

Object: Altitude: -55.14 Azimuth: 207.23

Sun: Altitude: 22.93 Azimuth: 353.71

Moon: Altitude: -5.50 Azimuth: 231.99

SAAO

Object: Altitude: -45.06 Azimuth: 356.78

Sun: Altitude: 69.92 Azimuth: 244.06

Moon: Altitude: -49.38 Azimuth: 274.01

IAC

Object: Altitude: -53.79 Azimuth: 108.62

Sun: Altitude: 15.58 Azimuth: 306.42

Moon: Altitude: -39.65 Azimuth: 188.44

Argentina

Object: Altitude: 4.72 Azimuth: 78.21

Sun: Altitude: -3.78 Azimuth: 298.98

Moon: Altitude: -48.12 Azimuth: 87.54

Mexico

Object: Altitude: 24.40 Azimuth: 56.59

Sun: Altitude: -62.37 Azimuth: 258.26

Moon: Altitude: 8.43 Azimuth: 110.18

Ural

Object: Altitude: -35.60 Azimuth: 232.06

Sun: Altitude: 9.22 Azimuth: 18.05

Moon: Altitude: 14.32 Azimuth: 252.28

Vostryakovo

Object: Altitude: -44.55 Azimuth: 206.96

Sun: Altitude: 12.49 Azimuth: 357.66

Moon: Altitude: 2.82 Azimuth: 234.74

Gal. latitude: -17.525197 Gal. longitude: 218.276910

Dist. to Sun: 139.335486

Dist. to Moon: 53.469566

Moon coord.: (46.834198 d, 21.594194 d)

Sun coord.: (290.596027 d, -22.096557 d)

Lunar disk: 0.760566

Lunar phase: 58.591735

Lunar bright limb: 256.456214

No SN in this field

2025-01-09 10:24:37 (JD 2460684.933762)

Siderial time 20.198991 h

Ra 05:55:13.44 Dec -12:30:00.00
( 88.806000d, -12.500000d)

Rise 2025-01-09 18:18:45

Transit 2025-01-09 23:06:18

Set 2025-01-09 03:57:47

Amur

Object: Altitude: 10.51 Azimuth: 304.64

Sun: Altitude: -24.49 Azimuth: 84.37

Moon: Altitude: 59.25 Azimuth: 332.78

Tunka

Object: Altitude: -3.97 Azimuth: 285.23

Sun: Altitude: -10.05 Azimuth: 66.89

Moon: Altitude: 47.55 Azimuth: 300.02

Kislovodsk

Object: Altitude: -44.20 Azimuth: 239.15

Sun: Altitude: 22.29 Azimuth: 17.27

Moon: Altitude: 8.36 Azimuth: 247.75

Tavrida

Object: Altitude: -48.54 Azimuth: 228.60

Sun: Altitude: 22.70 Azimuth: 8.78

Moon: Altitude: 3.26 Azimuth: 242.17

SAAO

Object: Altitude: -42.14 Azimuth: 336.85

Sun: Altitude: 78.97 Azimuth: 202.15

Moon: Altitude: -37.28 Azimuth: 266.01

IAC

Object: Altitude: -65.59 Azimuth: 126.28

Sun: Altitude: 25.47 Azimuth: 316.85

Moon: Altitude: -35.81 Azimuth: 204.72

Argentina

Object: Altitude: -7.57 Azimuth: 70.16

Sun: Altitude: 7.76 Azimuth: 291.23

Moon: Altitude: -60.37 Azimuth: 78.06

Mexico

Object: Altitude: 13.07 Azimuth: 66.47

Sun: Altitude: -49.62 Azimuth: 268.26

Moon: Altitude: -2.78 Azimuth: 117.57

Ural

Object: Altitude: -28.55 Azimuth: 247.29

Sun: Altitude: 5.80 Azimuth: 31.63

Moon: Altitude: 22.15 Azimuth: 263.77

Vostryakovo

Object: Altitude: -39.49 Azimuth: 225.57

Sun: Altitude: 11.79 Azimuth: 11.85

Moon: Altitude: 10.11 Azimuth: 246.09

Gal. latitude: -17.525197 Gal. longitude: 218.276910

Dist. to Sun: 139.317034

Dist. to Moon: 53.130739

Moon coord.: (47.433727 d, 21.785297 d)

Sun coord.: (290.641388 d, -22.090609 d)

Lunar disk: 0.764600

Lunar phase: 58.048551

Lunar bright limb: 256.707388

No SN in this field

2025-02-10 23:44:36 (JD 2460717.489306)

Siderial time 11.671266 h

Ra 05:55:13.44 Dec -12:30:00.00
( 88.806000d, -12.500000d)

Rise 2025-02-11 16:08:60

Transit 2025-02-11 20:56:33

Set 2025-02-12 01:44:06

Amur

Object: Altitude: -52.05 Azimuth: 173.85

Sun: Altitude: 7.22 Azimuth: 302.55

Moon: Altitude: -7.47 Azimuth: 142.00

Tunka

Object: Altitude: -44.56 Azimuth: 139.51

Sun: Altitude: -7.42 Azimuth: 283.45

Moon: Altitude: 4.83 Azimuth: 122.68

Kislovodsk

Object: Altitude: -9.44 Azimuth: 81.69

Sun: Altitude: -47.68 Azimuth: 236.68

Moon: Altitude: 42.19 Azimuth: 82.96

Tavrida

Object: Altitude: -3.65 Azimuth: 75.99

Sun: Altitude: -51.81 Azimuth: 225.31

Moon: Altitude: 47.98 Azimuth: 74.88

SAAO

Object: Altitude: 23.91 Azimuth: 90.04

Sun: Altitude: -41.66 Azimuth: 342.03

Moon: Altitude: 26.49 Azimuth: 147.54

IAC

Object: Altitude: 38.70 Azimuth: 41.72

Sun: Altitude: -63.94 Azimuth: 118.02

Moon: Altitude: 82.96 Azimuth: 311.66

Argentina

Object: Altitude: 62.91 Azimuth: 229.22

Sun: Altitude: -3.74 Azimuth: 70.82

Moon: Altitude: 11.33 Azimuth: 232.92

Mexico

Object: Altitude: 16.52 Azimuth: 296.24

Sun: Altitude: 14.89 Azimuth: 62.93

Moon: Altitude: 4.28 Azimuth: 245.06

Ural

Object: Altitude: -20.33 Azimuth: 98.46

Sun: Altitude: -31.75 Azimuth: 244.75

Moon: Altitude: 30.17 Azimuth: 87.21

Vostryakovo

Object: Altitude: -8.27 Azimuth: 79.95

Sun: Altitude: -42.41 Azimuth: 222.18

Moon: Altitude: 42.28 Azimuth: 68.38

Gal. latitude: -17.525197 Gal. longitude: 218.276910

Dist. to Sun: 118.723577

Dist. to Moon: 51.647410

Moon coord.: (126.669622 d, 23.503316 d)

Sun coord.: (324.512426 d, -14.132090 d)

Lunar disk: 0.972082

Lunar phase: 19.237065

Lunar bright limb: 295.835374

No SN in this field

Recent coverage and limits telegrams

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

  ID = 11923
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 EP250109a ( EP Team et al., GCN 38864) errorbox  10841 sec after notice time and 22040 sec after trigger time at 2025-01-09 12:25:18 UT, with upper limit up to  16.9 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -28.1 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the EP250109a errorbox  49725 sec after notice time and 60924 sec after trigger time at 2025-01-09 23:13:22 UT, with upper limit up to  19.1 mag. The observations began at zenith distance = 33 deg. The sun  altitude  is -35.6 deg. 

The galactic latitude b = -18 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2739026

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   22049 | 2025-01-09 12:25:18 |        MASTER-Tunka | (05h 55m 17.63s , -12d 32m 20.4s) |   C |    15 | 15.5 |        
   22083 | 2025-01-09 12:25:53 |        MASTER-Tunka | (05h 55m 17.99s , -12d 31m 16.2s) |   C |    15 | 15.4 |        
   22112 | 2025-01-09 12:26:21 |        MASTER-Tunka | (05h 55m 24.27s , -12d 32m 15.0s) |   C |    15 | 15.4 |        
   22139 | 2025-01-09 12:26:48 |        MASTER-Tunka | (05h 55m 19.06s , -12d 33m 13.7s) |   C |    15 | 14.9 |        
   22165 | 2025-01-09 12:27:15 |        MASTER-Tunka | (05h 55m 24.58s , -12d 32m 56.1s) |   C |    15 | 14.9 |        
   22191 | 2025-01-09 12:27:41 |        MASTER-Tunka | (05h 55m 21.14s , -12d 31m 40.0s) |   C |    15 | 14.8 |        
   22503 | 2025-01-09 12:32:57 |        MASTER-Tunka | (05h 55m 20.91s , -12d 32m 45.4s) |   C |     5 | 15.5 |        
   22522 | 2025-01-09 12:33:16 |        MASTER-Tunka | (05h 55m 24.47s , -12d 31m 13.3s) |   C |     5 | 15.4 |        
   22540 | 2025-01-09 12:33:33 |        MASTER-Tunka | (05h 55m 17.12s , -12d 31m 49.4s) |   C |     8 | 15.3 |        
   22560 | 2025-01-09 12:33:53 |        MASTER-Tunka | (05h 55m 18.59s , -12d 30m 47.9s) |   C |     8 | 15.3 |        
   22582 | 2025-01-09 12:34:16 |        MASTER-Tunka | (05h 55m 23.95s , -12d 31m 47.5s) |   C |     8 | 15.2 |        
   22604 | 2025-01-09 12:34:37 |        MASTER-Tunka | (05h 55m 18.35s , -12d 32m 43.7s) |   C |     8 | 15.2 |        
   22626 | 2025-01-09 12:35:00 |        MASTER-Tunka | (05h 55m 23.61s , -12d 32m 10.6s) |   C |     8 | 15.3 |        
   22648 | 2025-01-09 12:35:21 |        MASTER-Tunka | (05h 55m 20.84s , -12d 31m 08.9s) |   C |     8 | 14.8 |        
   22671 | 2025-01-09 12:35:43 |        MASTER-Tunka | (05h 55m 20.86s , -12d 32m 22.5s) |   C |    10 | 14.6 |        
   22694 | 2025-01-09 12:36:07 |        MASTER-Tunka | (05h 55m 23.91s , -12d 31m 03.4s) |   C |    10 | 14.3 |        
   22718 | 2025-01-09 12:36:30 |        MASTER-Tunka | (05h 55m 18.05s , -12d 31m 34.6s) |   C |    10 | 14.6 |        
   22741 | 2025-01-09 12:36:55 |        MASTER-Tunka | (05h 55m 18.67s , -12d 30m 33.0s) |   C |     5 | 14.6 |        
   22774 | 2025-01-09 12:37:28 |        MASTER-Tunka | (05h 55m 23.56s , -12d 31m 31.8s) |   C |     5 | 14.9 |        
   22794 | 2025-01-09 12:37:48 |        MASTER-Tunka | (05h 55m 17.70s , -12d 32m 31.2s) |   C |     5 | 15.0 |        
   22814 | 2025-01-09 12:38:07 |        MASTER-Tunka | (05h 55m 24.18s , -12d 32m 28.8s) |   C |    10 | 15.3 |        
   24449 | 2025-01-09 13:05:18 |        MASTER-Tunka | (05h 55m 20.96s , -12d 29m 25.1s) |   C |    15 | 16.2 |        
   24477 | 2025-01-09 13:05:46 |        MASTER-Tunka | (05h 55m 20.83s , -12d 30m 45.1s) |   C |    15 | 15.0 |        
   33236 | 2025-01-09 15:31:45 |        MASTER-Tunka | (05h 55m 11.28s , -12d 19m 02.8s) |   C |    15 | 15.9 |        
   33251 | 2025-01-09 15:31:45 |        MASTER-Tunka | (05h 55m 11.27s , -12d 19m 02.8s) |   C |    45 | 16.7 |  Coadd 
   33266 | 2025-01-09 15:32:16 |        MASTER-Tunka | (05h 55m 06.21s , -12d 20m 01.3s) |   C |    15 | 15.9 |        
   33293 | 2025-01-09 15:32:43 |        MASTER-Tunka | (05h 55m 06.93s , -12d 19m 01.4s) |   C |    15 | 15.9 |        
   33318 | 2025-01-09 15:33:11 |        MASTER-Tunka | (05h 55m 12.74s , -12d 19m 58.9s) |   C |    10 | 15.8 |        
   33328 | 2025-01-09 15:33:11 |        MASTER-Tunka | (05h 55m 12.74s , -12d 19m 58.8s) |   C |    30 | 16.5 |  Coadd 
   33340 | 2025-01-09 15:33:33 |        MASTER-Tunka | (05h 55m 06.05s , -12d 20m 57.9s) |   C |    10 | 15.9 |        
   33362 | 2025-01-09 15:33:54 |        MASTER-Tunka | (05h 55m 12.71s , -12d 20m 46.9s) |   C |    10 | 16.1 |        
   33384 | 2025-01-09 15:34:17 |        MASTER-Tunka | (05h 55m 09.61s , -12d 19m 03.8s) |   C |    10 | 16.2 |        
   33394 | 2025-01-09 15:34:17 |        MASTER-Tunka | (05h 55m 09.61s , -12d 19m 03.8s) |   C |    30 | 16.7 |  Coadd 
   33407 | 2025-01-09 15:34:40 |        MASTER-Tunka | (05h 55m 09.68s , -12d 20m 27.3s) |   C |    10 | 16.1 |        
   33432 | 2025-01-09 15:35:04 |        MASTER-Tunka | (05h 55m 13.25s , -12d 18m 58.2s) |   C |    10 | 16.1 |        
   33457 | 2025-01-09 15:35:30 |        MASTER-Tunka | (05h 55m 06.10s , -12d 19m 53.9s) |   C |    10 | 16.1 |        
   33467 | 2025-01-09 15:35:30 |        MASTER-Tunka | (05h 55m 06.10s , -12d 19m 53.8s) |   C |    30 | 16.8 |  Coadd 
   33482 | 2025-01-09 15:35:54 |        MASTER-Tunka | (05h 55m 05.90s , -12d 18m 53.6s) |   C |    10 | 16.3 |        
   33504 | 2025-01-09 15:36:16 |        MASTER-Tunka | (05h 55m 12.78s , -12d 19m 53.2s) |   C |    10 | 16.2 |        
   33528 | 2025-01-09 15:36:41 |        MASTER-Tunka | (05h 55m 07.32s , -12d 20m 51.9s) |   C |    10 | 16.3 |        
   33538 | 2025-01-09 15:36:41 |        MASTER-Tunka | (05h 55m 07.32s , -12d 20m 52.0s) |   C |    30 | 16.9 |  Coadd 
   33550 | 2025-01-09 15:37:02 |        MASTER-Tunka | (05h 55m 12.89s , -12d 20m 36.1s) |   C |    10 | 16.3 |        
   33573 | 2025-01-09 15:37:25 |        MASTER-Tunka | (05h 55m 09.95s , -12d 19m 19.9s) |   C |    10 | 16.2 |        
   33595 | 2025-01-09 15:37:47 |        MASTER-Tunka | (05h 55m 10.01s , -12d 20m 28.5s) |   C |    10 | 16.2 |        
   33605 | 2025-01-09 15:37:47 |        MASTER-Tunka | (05h 55m 10.02s , -12d 20m 28.5s) |   C |    30 | 16.9 |  Coadd 
   33618 | 2025-01-09 15:38:10 |        MASTER-Tunka | (05h 55m 13.92s , -12d 19m 15.6s) |   C |    10 | 16.2 |        
   33641 | 2025-01-09 15:38:33 |        MASTER-Tunka | (05h 55m 06.67s , -12d 19m 47.1s) |   C |    10 | 16.1 |        
   33663 | 2025-01-09 15:38:56 |        MASTER-Tunka | (05h 55m 06.23s , -12d 18m 46.7s) |   C |    10 | 16.1 |        
   33673 | 2025-01-09 15:38:56 |        MASTER-Tunka | (05h 55m 06.23s , -12d 18m 46.6s) |   C |    30 | 16.9 |  Coadd 
   33686 | 2025-01-09 15:39:18 |        MASTER-Tunka | (05h 55m 13.14s , -12d 19m 47.1s) |   C |    10 | 16.2 |        
   33708 | 2025-01-09 15:39:41 |        MASTER-Tunka | (05h 55m 07.57s , -12d 20m 45.9s) |   C |    10 | 16.4 |        
   33732 | 2025-01-09 15:40:05 |        MASTER-Tunka | (05h 55m 12.95s , -12d 20m 23.3s) |   C |    10 | 16.2 |        
   33741 | 2025-01-09 15:40:05 |        MASTER-Tunka | (05h 55m 12.95s , -12d 20m 23.2s) |   C |    28 | 16.9 |  Coadd 
   33762 | 2025-01-09 15:40:34 |        MASTER-Tunka | (05h 55m 10.32s , -12d 18m 57.4s) |   C |    10 | 16.3 |        
   33785 | 2025-01-09 15:40:58 |        MASTER-Tunka | (05h 55m 10.31s , -12d 20m 28.9s) |   C |     8 | 16.2 |        
   33807 | 2025-01-09 15:41:20 |        MASTER-Tunka | (05h 55m 13.26s , -12d 19m 06.1s) |   C |     8 | 16.1 |        
   33815 | 2025-01-09 15:41:20 |        MASTER-Tunka | (05h 55m 13.26s , -12d 19m 06.0s) |   C |    24 | 16.8 |  Coadd 
   33829 | 2025-01-09 15:41:43 |        MASTER-Tunka | (05h 55m 06.72s , -12d 19m 40.9s) |   C |     8 | 16.2 |        
   33849 | 2025-01-09 15:42:03 |        MASTER-Tunka | (05h 55m 07.18s , -12d 18m 41.3s) |   C |     8 | 16.1 |        
   33880 | 2025-01-09 15:42:33 |        MASTER-Tunka | (05h 55m 14.12s , -12d 19m 40.3s) |   C |     8 | 16.2 |        
   33888 | 2025-01-09 15:42:33 |        MASTER-Tunka | (05h 55m 14.12s , -12d 19m 40.1s) |   C |    24 | 16.9 |  Coadd 
   33900 | 2025-01-09 15:42:53 |        MASTER-Tunka | (05h 55m 06.70s , -12d 20m 39.3s) |   C |     8 | 16.3 |        
   33921 | 2025-01-09 15:43:15 |        MASTER-Tunka | (05h 55m 13.37s , -12d 20m 13.1s) |   C |     8 | 16.3 |        
   33942 | 2025-01-09 15:43:35 |        MASTER-Tunka | (05h 55m 10.60s , -12d 18m 40.2s) |   C |     8 | 16.2 |        
   33950 | 2025-01-09 15:43:35 |        MASTER-Tunka | (05h 55m 10.61s , -12d 18m 40.3s) |   C |    24 | 16.9 |  Coadd 
   33964 | 2025-01-09 15:43:58 |        MASTER-Tunka | (05h 55m 10.62s , -12d 20m 16.0s) |   C |     8 | 16.3 |        
   33989 | 2025-01-09 15:44:22 |        MASTER-Tunka | (05h 55m 12.72s , -12d 19m 03.1s) |   C |     8 | 16.2 |        
   34008 | 2025-01-09 15:44:41 |        MASTER-Tunka | (05h 55m 07.67s , -12d 19m 35.7s) |   C |     8 | 16.2 |        
   34016 | 2025-01-09 15:44:41 |        MASTER-Tunka | (05h 55m 07.68s , -12d 19m 35.7s) |   C |    24 | 16.8 |  Coadd 
   34031 | 2025-01-09 15:45:04 |        MASTER-Tunka | (05h 55m 07.85s , -12d 18m 34.1s) |   C |     8 | 16.2 |        
   34051 | 2025-01-09 15:45:24 |        MASTER-Tunka | (05h 55m 14.00s , -12d 19m 33.1s) |   C |     8 | 16.2 |        
   34077 | 2025-01-09 15:45:51 |        MASTER-Tunka | (05h 55m 08.70s , -12d 20m 33.2s) |   C |     8 | 16.2 |        
   34085 | 2025-01-09 15:45:51 |        MASTER-Tunka | (05h 55m 08.70s , -12d 20m 33.3s) |   C |    24 | 16.9 |  Coadd 
   34096 | 2025-01-09 15:46:10 |        MASTER-Tunka | (05h 55m 12.84s , -12d 20m 27.8s) |   C |     8 | 16.1 |        
   34117 | 2025-01-09 15:46:31 |        MASTER-Tunka | (05h 55m 10.84s , -12d 18m 52.2s) |   C |     8 | 16.1 |        
   34141 | 2025-01-09 15:46:54 |        MASTER-Tunka | (05h 55m 10.87s , -12d 20m 03.7s) |   C |     8 | 16.2 |        
   34150 | 2025-01-09 15:46:54 |        MASTER-Tunka | (05h 55m 10.87s , -12d 20m 03.7s) |   C |    26 | 16.9 |  Coadd 
   34161 | 2025-01-09 15:47:15 |        MASTER-Tunka | (05h 55m 14.00s , -12d 18m 55.0s) |   C |     8 | 16.2 |        
   34184 | 2025-01-09 15:47:37 |        MASTER-Tunka | (05h 55m 08.03s , -12d 19m 30.2s) |   C |    10 | 16.1 |        
   34207 | 2025-01-09 15:47:59 |        MASTER-Tunka | (05h 55m 07.97s , -12d 18m 28.8s) |   C |    10 | 16.1 |        
   34217 | 2025-01-09 15:47:59 |        MASTER-Tunka | (05h 55m 07.97s , -12d 18m 28.6s) |   C |    30 | 16.4 |  Coadd 
   34238 | 2025-01-09 15:48:31 |        MASTER-Tunka | (05h 55m 13.19s , -12d 19m 28.5s) |   C |    10 | 15.6 |        
   34263 | 2025-01-09 15:48:56 |        MASTER-Tunka | (05h 55m 07.82s , -12d 20m 27.5s) |   C |    10 | 15.9 |        
   34295 | 2025-01-09 15:49:27 |        MASTER-Tunka | (05h 55m 14.14s , -12d 20m 24.9s) |   C |    10 | 16.3 |        
   34305 | 2025-01-09 15:49:27 |        MASTER-Tunka | (05h 55m 14.14s , -12d 20m 24.9s) |   C |    30 | 16.8 |  Coadd 
   34319 | 2025-01-09 15:49:52 |        MASTER-Tunka | (05h 55m 11.12s , -12d 18m 27.9s) |   C |    10 | 16.2 |        
   34346 | 2025-01-09 15:50:19 |        MASTER-Tunka | (05h 55m 11.15s , -12d 20m 08.3s) |   C |    10 | 16.3 |        
   34370 | 2025-01-09 15:50:42 |        MASTER-Tunka | (05h 55m 13.28s , -12d 18m 32.7s) |   C |    10 | 16.2 |        
   34380 | 2025-01-09 15:50:42 |        MASTER-Tunka | (05h 55m 13.28s , -12d 18m 32.8s) |   C |    30 | 16.8 |  Coadd 
   34393 | 2025-01-09 15:51:06 |        MASTER-Tunka | (05h 55m 08.38s , -12d 19m 24.2s) |   C |    10 | 16.2 |        
   34418 | 2025-01-09 15:51:30 |        MASTER-Tunka | (05h 55m 07.77s , -12d 18m 23.6s) |   C |    10 | 16.2 |        
   34440 | 2025-01-09 15:51:53 |        MASTER-Tunka | (05h 55m 13.63s , -12d 19m 22.1s) |   C |    10 | 16.2 |        
   34450 | 2025-01-09 15:51:53 |        MASTER-Tunka | (05h 55m 13.63s , -12d 19m 22.1s) |   C |    30 | 16.8 |  Coadd 
   34463 | 2025-01-09 15:52:16 |        MASTER-Tunka | (05h 55m 09.19s , -12d 20m 21.6s) |   C |    10 | 16.1 |        
   34484 | 2025-01-09 15:52:36 |        MASTER-Tunka | (05h 55m 14.49s , -12d 20m 09.6s) |   C |    10 | 16.1 |        
   34510 | 2025-01-09 15:53:03 |        MASTER-Tunka | (05h 55m 11.29s , -12d 18m 21.1s) |   C |    10 | 16.2 |        
   34520 | 2025-01-09 15:53:03 |        MASTER-Tunka | (05h 55m 11.30s , -12d 18m 21.1s) |   C |    30 | 16.9 |  Coadd 
   34534 | 2025-01-09 15:53:26 |        MASTER-Tunka | (05h 55m 11.32s , -12d 19m 52.3s) |   C |    10 | 16.2 |        
   34563 | 2025-01-09 15:53:55 |        MASTER-Tunka | (05h 55m 13.61s , -12d 18m 45.0s) |   C |    10 | 16.3 |        
   34586 | 2025-01-09 15:54:19 |        MASTER-Tunka | (05h 55m 08.74s , -12d 19m 17.3s) |   C |    10 | 16.2 |        
   34596 | 2025-01-09 15:54:19 |        MASTER-Tunka | (05h 55m 08.74s , -12d 19m 17.3s) |   C |    30 | 16.8 |  Coadd 
   34615 | 2025-01-09 15:54:48 |        MASTER-Tunka | (05h 55m 08.70s , -12d 18m 16.8s) |   C |    10 | 16.2 |        
   34640 | 2025-01-09 15:55:12 |        MASTER-Tunka | (05h 55m 15.42s , -12d 19m 16.8s) |   C |    10 | 16.2 |        
   34664 | 2025-01-09 15:55:37 |        MASTER-Tunka | (05h 55m 07.74s , -12d 20m 15.5s) |   C |    10 | 16.2 |        
   34674 | 2025-01-09 15:55:37 |        MASTER-Tunka | (05h 55m 07.75s , -12d 20m 15.5s) |   C |    30 | 16.8 |  Coadd 
   34688 | 2025-01-09 15:56:00 |        MASTER-Tunka | (05h 55m 15.39s , -12d 19m 54.6s) |   C |    10 | 16.2 |        
   34711 | 2025-01-09 15:56:23 |        MASTER-Tunka | (05h 55m 11.56s , -12d 18m 39.7s) |   C |    10 | 16.1 |        
   34735 | 2025-01-09 15:56:47 |        MASTER-Tunka | (05h 55m 11.60s , -12d 19m 57.3s) |   C |    10 | 16.0 |        
   34755 | 2025-01-09 15:56:47 |        MASTER-Tunka | (05h 55m 11.60s , -12d 19m 57.1s) |   C |    50 | 16.9 |  Coadd 
   35046 | 2025-01-09 16:01:54 |        MASTER-Tunka | (05h 55m 15.57s , -12d 18m 22.5s) |   C |    20 | 16.3 |        
   35078 | 2025-01-09 16:02:25 |        MASTER-Tunka | (05h 55m 08.01s , -12d 18m 56.4s) |   C |    20 | 16.3 |        
   35167 | 2025-01-09 16:03:54 |        MASTER-Tunka | (05h 55m 09.57s , -12d 17m 53.2s) |   C |    20 | 16.5 |        
   35177 | 2025-01-09 16:03:54 |        MASTER-Tunka | (05h 55m 09.57s , -12d 17m 53.5s) |   C |    40 | 16.9 |  Coadd 
   35194 | 2025-01-09 16:04:27 |        MASTER-Tunka | (05h 55m 14.89s , -12d 18m 53.8s) |   C |    10 | 16.3 |        
   35216 | 2025-01-09 16:04:49 |        MASTER-Tunka | (05h 55m 09.36s , -12d 19m 53.7s) |   C |    10 | 16.1 |        
   35239 | 2025-01-09 16:05:11 |        MASTER-Tunka | (05h 55m 15.95s , -12d 19m 52.1s) |   C |    10 | 16.2 |        
   35249 | 2025-01-09 16:05:11 |        MASTER-Tunka | (05h 55m 15.95s , -12d 19m 51.9s) |   C |    30 | 16.7 |  Coadd 
   35273 | 2025-01-09 16:05:45 |        MASTER-Tunka | (05h 55m 12.21s , -12d 18m 06.0s) |   C |    10 | 16.0 |        
   35297 | 2025-01-09 16:06:09 |        MASTER-Tunka | (05h 55m 12.24s , -12d 19m 24.7s) |   C |    10 | 15.8 |        
   35319 | 2025-01-09 16:06:32 |        MASTER-Tunka | (05h 55m 15.52s , -12d 18m 08.2s) |   C |    10 | 15.7 |        
   60955 | 2025-01-09 23:13:22 |         MASTER-SAAO | (05h 54m 50.14s , -12d 39m 22.2s) |   C |    60 | 18.7 |        
   61548 | 2025-01-09 23:23:16 |         MASTER-SAAO | (05h 54m 46.57s , -12d 38m 50.7s) |   C |    60 | 18.5 |        
   62594 | 2025-01-09 23:40:42 |         MASTER-SAAO | (05h 54m 48.73s , -12d 38m 20.3s) |   C |    60 | 18.5 |        
   62784 | 2025-01-09 23:43:51 |         MASTER-SAAO | (05h 54m 41.48s , -12d 38m 03.2s) |   C |    60 | 18.9 |        
   63017 | 2025-01-09 23:47:44 |         MASTER-SAAO | (05h 54m 39.51s , -12d 39m 54.9s) |   C |    60 | 19.0 |        
   63625 | 2025-01-09 23:57:52 |         MASTER-SAAO | (05h 54m 44.14s , -12d 37m 48.6s) |   C |    60 | 18.7 |        
   63872 | 2025-01-10 00:01:59 |         MASTER-SAAO | (05h 54m 35.36s , -12d 37m 20.1s) |   C |    60 | 19.0 |        
   64079 | 2025-01-10 00:05:26 |         MASTER-SAAO | (05h 54m 35.79s , -12d 39m 11.6s) |   C |    60 | 18.7 |        
   64241 | 2025-01-10 00:08:08 |         MASTER-SAAO | (05h 54m 37.47s , -12d 37m 08.8s) |   C |    60 | 19.1 |        
   64446 | 2025-01-10 00:11:33 |         MASTER-SAAO | (05h 54m 43.97s , -12d 37m 16.8s) |   C |    60 | 15.4 |        
   64653 | 2025-01-10 00:15:01 |         MASTER-SAAO | (05h 54m 32.66s , -12d 36m 48.6s) |   C |    60 | 19.1 |        
   64862 | 2025-01-10 00:18:30 |         MASTER-SAAO | (05h 54m 27.39s , -12d 38m 40.1s) |   C |    60 | 15.5 |        
   65022 | 2025-01-10 00:21:09 |         MASTER-SAAO | (05h 54m 33.86s , -12d 36m 58.2s) |   C |    60 | 19.1 |        
   65228 | 2025-01-10 00:24:36 |         MASTER-SAAO | (05h 54m 39.98s , -12d 36m 48.9s) |   C |    60 | 15.4 |        
   65468 | 2025-01-10 00:28:35 |         MASTER-SAAO | (05h 54m 29.91s , -12d 36m 16.4s) |   C |    60 | 19.1 |        
   65693 | 2025-01-10 00:32:20 |         MASTER-SAAO | (05h 54m 27.72s , -12d 38m 06.9s) |   C |    60 | 18.8 |        
   65855 | 2025-01-10 00:35:03 |         MASTER-SAAO | (05h 54m 30.10s , -12d 36m 02.5s) |   C |    60 | 19.1 |        
   66114 | 2025-01-10 00:39:22 |         MASTER-SAAO | (05h 54m 31.81s , -12d 35m 55.1s) |   C |    60 | 19.1 |        
   66342 | 2025-01-10 00:43:10 |         MASTER-SAAO | (05h 54m 25.04s , -12d 35m 39.7s) |   C |    60 | 19.1 |        
   66547 | 2025-01-10 00:46:34 |         MASTER-SAAO | (05h 54m 27.20s , -12d 37m 34.1s) |   C |    60 | 15.4 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 11919
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 EP250109a ( EP Team et al., GCN 38864) errorbox  10841 sec after notice time and 22040 sec after trigger time at 2025-01-09 12:25:18 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -28.1 deg. 

The galactic latitude b = -18 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2739026

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   22049 | 2025-01-09 12:25:18 |        MASTER-Tunka | (05h 55m 17.63s , -12d 32m 20.4s) |   C |    15 | 15.5 |        
   22083 | 2025-01-09 12:25:53 |        MASTER-Tunka | (05h 55m 17.99s , -12d 31m 16.2s) |   C |    15 | 15.4 |        
   22112 | 2025-01-09 12:26:21 |        MASTER-Tunka | (05h 55m 24.27s , -12d 32m 15.0s) |   C |    15 | 15.4 |        
   22139 | 2025-01-09 12:26:48 |        MASTER-Tunka | (05h 55m 19.06s , -12d 33m 13.7s) |   C |    15 | 14.9 |        
   22165 | 2025-01-09 12:27:15 |        MASTER-Tunka | (05h 55m 24.58s , -12d 32m 56.1s) |   C |    15 | 14.9 |        
   22191 | 2025-01-09 12:27:41 |        MASTER-Tunka | (05h 55m 21.14s , -12d 31m 40.0s) |   C |    15 | 14.8 |        
   22503 | 2025-01-09 12:32:57 |        MASTER-Tunka | (05h 55m 20.91s , -12d 32m 45.4s) |   C |     5 | 15.5 |        
   22522 | 2025-01-09 12:33:16 |        MASTER-Tunka | (05h 55m 24.47s , -12d 31m 13.3s) |   C |     5 | 15.4 |        
   22540 | 2025-01-09 12:33:33 |        MASTER-Tunka | (05h 55m 17.12s , -12d 31m 49.4s) |   C |     8 | 15.3 |        
   22560 | 2025-01-09 12:33:53 |        MASTER-Tunka | (05h 55m 18.59s , -12d 30m 47.9s) |   C |     8 | 15.3 |        
   22582 | 2025-01-09 12:34:16 |        MASTER-Tunka | (05h 55m 23.95s , -12d 31m 47.5s) |   C |     8 | 15.2 |        
   22604 | 2025-01-09 12:34:37 |        MASTER-Tunka | (05h 55m 18.35s , -12d 32m 43.7s) |   C |     8 | 15.2 |        
   22626 | 2025-01-09 12:35:00 |        MASTER-Tunka | (05h 55m 23.61s , -12d 32m 10.6s) |   C |     8 | 15.3 |        
   22648 | 2025-01-09 12:35:21 |        MASTER-Tunka | (05h 55m 20.84s , -12d 31m 08.9s) |   C |     8 | 14.8 |        
   22671 | 2025-01-09 12:35:43 |        MASTER-Tunka | (05h 55m 20.86s , -12d 32m 22.5s) |   C |    10 | 14.6 |        
   22694 | 2025-01-09 12:36:07 |        MASTER-Tunka | (05h 55m 23.91s , -12d 31m 03.4s) |   C |    10 | 14.3 |        
   22718 | 2025-01-09 12:36:30 |        MASTER-Tunka | (05h 55m 18.05s , -12d 31m 34.6s) |   C |    10 | 14.6 |        
   22741 | 2025-01-09 12:36:55 |        MASTER-Tunka | (05h 55m 18.67s , -12d 30m 33.0s) |   C |     5 | 14.6 |        
   22774 | 2025-01-09 12:37:28 |        MASTER-Tunka | (05h 55m 23.56s , -12d 31m 31.8s) |   C |     5 | 14.9 |        
   22794 | 2025-01-09 12:37:48 |        MASTER-Tunka | (05h 55m 17.70s , -12d 32m 31.2s) |   C |     5 | 15.0 |        
   22814 | 2025-01-09 12:38:07 |        MASTER-Tunka | (05h 55m 24.18s , -12d 32m 28.8s) |   C |    10 | 15.3 |        
   24449 | 2025-01-09 13:05:18 |        MASTER-Tunka | (05h 55m 20.96s , -12d 29m 25.1s) |   C |    15 | 16.2 |        
   24477 | 2025-01-09 13:05:46 |        MASTER-Tunka | (05h 55m 20.83s , -12d 30m 45.1s) |   C |    15 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 11918
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 EP250109a ( EP Team et al., GCN 38864) errorbox  10841 sec after notice time and 22040 sec after trigger time at 2025-01-09 12:25:18 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -28.1 deg. 

The galactic latitude b = -18 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2739026

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   22049 | 2025-01-09 12:25:18 |        MASTER-Tunka | (05h 55m 17.63s , -12d 32m 20.4s) |   C |    15 | 15.5 |        
   22083 | 2025-01-09 12:25:53 |        MASTER-Tunka | (05h 55m 17.99s , -12d 31m 16.2s) |   C |    15 | 15.4 |        
   22112 | 2025-01-09 12:26:21 |        MASTER-Tunka | (05h 55m 24.27s , -12d 32m 15.0s) |   C |    15 | 15.4 |        
   22139 | 2025-01-09 12:26:48 |        MASTER-Tunka | (05h 55m 19.06s , -12d 33m 13.7s) |   C |    15 | 14.9 |        
   22165 | 2025-01-09 12:27:15 |        MASTER-Tunka | (05h 55m 24.58s , -12d 32m 56.1s) |   C |    15 | 14.9 |        
   22191 | 2025-01-09 12:27:41 |        MASTER-Tunka | (05h 55m 21.14s , -12d 31m 40.0s) |   C |    15 | 14.8 |        
   22503 | 2025-01-09 12:32:57 |        MASTER-Tunka | (05h 55m 20.91s , -12d 32m 45.4s) |   C |     5 | 15.5 |        
   22522 | 2025-01-09 12:33:16 |        MASTER-Tunka | (05h 55m 24.47s , -12d 31m 13.3s) |   C |     5 | 15.4 |        
   22540 | 2025-01-09 12:33:33 |        MASTER-Tunka | (05h 55m 17.12s , -12d 31m 49.4s) |   C |     8 | 15.3 |        
   22560 | 2025-01-09 12:33:53 |        MASTER-Tunka | (05h 55m 18.59s , -12d 30m 47.9s) |   C |     8 | 15.3 |        
   22582 | 2025-01-09 12:34:16 |        MASTER-Tunka | (05h 55m 23.95s , -12d 31m 47.5s) |   C |     8 | 15.2 |        
   22604 | 2025-01-09 12:34:37 |        MASTER-Tunka | (05h 55m 18.35s , -12d 32m 43.7s) |   C |     8 | 15.2 |        
   22626 | 2025-01-09 12:35:00 |        MASTER-Tunka | (05h 55m 23.61s , -12d 32m 10.6s) |   C |     8 | 15.3 |        
   22648 | 2025-01-09 12:35:21 |        MASTER-Tunka | (05h 55m 20.84s , -12d 31m 08.9s) |   C |     8 | 14.8 |        
   22671 | 2025-01-09 12:35:43 |        MASTER-Tunka | (05h 55m 20.86s , -12d 32m 22.5s) |   C |    10 | 14.6 |        
   22694 | 2025-01-09 12:36:07 |        MASTER-Tunka | (05h 55m 23.91s , -12d 31m 03.4s) |   C |    10 | 14.3 |        
   22718 | 2025-01-09 12:36:30 |        MASTER-Tunka | (05h 55m 18.05s , -12d 31m 34.6s) |   C |    10 | 14.6 |        
   22741 | 2025-01-09 12:36:55 |        MASTER-Tunka | (05h 55m 18.67s , -12d 30m 33.0s) |   C |     5 | 14.6 |        
   22774 | 2025-01-09 12:37:28 |        MASTER-Tunka | (05h 55m 23.56s , -12d 31m 31.8s) |   C |     5 | 14.9 |        
   22794 | 2025-01-09 12:37:48 |        MASTER-Tunka | (05h 55m 17.70s , -12d 32m 31.2s) |   C |     5 | 15.0 |        
   22814 | 2025-01-09 12:38:07 |        MASTER-Tunka | (05h 55m 24.18s , -12d 32m 28.8s) |   C |    10 | 15.3 |        
   24449 | 2025-01-09 13:05:18 |        MASTER-Tunka | (05h 55m 20.96s , -12d 29m 25.1s) |   C |    15 | 16.2 |        
   24477 | 2025-01-09 13:05:46 |        MASTER-Tunka | (05h 55m 20.83s , -12d 30m 45.1s) |   C |    15 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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



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

  ID = 11917
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 EP250109a ( EP Team et al., GCN 38864) errorbox  10841 sec after notice time and 22040 sec after trigger time at 2025-01-09 12:25:18 UT, with upper limit up to  16.2 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -28.1 deg. 

The galactic latitude b = -18 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2739026

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   22049 | 2025-01-09 12:25:18 |        MASTER-Tunka | (05h 55m 17.63s , -12d 32m 20.4s) |   C |    15 | 15.5 |        
   22083 | 2025-01-09 12:25:53 |        MASTER-Tunka | (05h 55m 17.99s , -12d 31m 16.2s) |   C |    15 | 15.4 |        
   22112 | 2025-01-09 12:26:21 |        MASTER-Tunka | (05h 55m 24.27s , -12d 32m 15.0s) |   C |    15 | 15.4 |        
   22139 | 2025-01-09 12:26:48 |        MASTER-Tunka | (05h 55m 19.06s , -12d 33m 13.7s) |   C |    15 | 14.9 |        
   22165 | 2025-01-09 12:27:15 |        MASTER-Tunka | (05h 55m 24.58s , -12d 32m 56.1s) |   C |    15 | 14.9 |        
   22191 | 2025-01-09 12:27:41 |        MASTER-Tunka | (05h 55m 21.14s , -12d 31m 40.0s) |   C |    15 | 14.8 |        
   22503 | 2025-01-09 12:32:57 |        MASTER-Tunka | (05h 55m 20.91s , -12d 32m 45.4s) |   C |     5 | 15.5 |        
   22522 | 2025-01-09 12:33:16 |        MASTER-Tunka | (05h 55m 24.47s , -12d 31m 13.3s) |   C |     5 | 15.4 |        
   22540 | 2025-01-09 12:33:33 |        MASTER-Tunka | (05h 55m 17.12s , -12d 31m 49.4s) |   C |     8 | 15.3 |        
   22560 | 2025-01-09 12:33:53 |        MASTER-Tunka | (05h 55m 18.59s , -12d 30m 47.9s) |   C |     8 | 15.3 |        
   22582 | 2025-01-09 12:34:16 |        MASTER-Tunka | (05h 55m 23.95s , -12d 31m 47.5s) |   C |     8 | 15.2 |        
   22604 | 2025-01-09 12:34:37 |        MASTER-Tunka | (05h 55m 18.35s , -12d 32m 43.7s) |   C |     8 | 15.2 |        
   22626 | 2025-01-09 12:35:00 |        MASTER-Tunka | (05h 55m 23.61s , -12d 32m 10.6s) |   C |     8 | 15.3 |        
   22648 | 2025-01-09 12:35:21 |        MASTER-Tunka | (05h 55m 20.84s , -12d 31m 08.9s) |   C |     8 | 14.8 |        
   22671 | 2025-01-09 12:35:43 |        MASTER-Tunka | (05h 55m 20.86s , -12d 32m 22.5s) |   C |    10 | 14.6 |        
   22694 | 2025-01-09 12:36:07 |        MASTER-Tunka | (05h 55m 23.91s , -12d 31m 03.4s) |   C |    10 | 14.3 |        
   22718 | 2025-01-09 12:36:30 |        MASTER-Tunka | (05h 55m 18.05s , -12d 31m 34.6s) |   C |    10 | 14.6 |        
   22741 | 2025-01-09 12:36:55 |        MASTER-Tunka | (05h 55m 18.67s , -12d 30m 33.0s) |   C |     5 | 14.6 |        
   22774 | 2025-01-09 12:37:28 |        MASTER-Tunka | (05h 55m 23.56s , -12d 31m 31.8s) |   C |     5 | 14.9 |        
   22794 | 2025-01-09 12:37:48 |        MASTER-Tunka | (05h 55m 17.70s , -12d 32m 31.2s) |   C |     5 | 15.0 |        
   22814 | 2025-01-09 12:38:07 |        MASTER-Tunka | (05h 55m 24.18s , -12d 32m 28.8s) |   C |    10 | 15.3 |        
   24449 | 2025-01-09 13:05:18 |        MASTER-Tunka | (05h 55m 20.96s , -12d 29m 25.1s) |   C |    15 | 16.2 |        
   24477 | 2025-01-09 13:05:46 |        MASTER-Tunka | (05h 55m 20.83s , -12d 30m 45.1s) |   C |    15 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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



 

MASTER, 2002-2025