GCN Circular 39332
Subject
EP250215a: Global MASTER-Net observations report
Date
2025-02-15T09:27:45Z (7 days ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
email
V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko,
A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin,
V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU),
O.Gress, N.Budnev (ISU),
C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)
D.Buckley (SAAO),
R.Rebolo (The Instituto de Astrofisica de Canarias),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory)
MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) was pointed to the EP250215a ( EP Team et al., GCN 39329) errorbox 12952 sec after notice time and 19891 sec after trigger time at 2025-02-15 08:03:34 UT, with upper limit up to 19.2 mag. The observations began at zenith distance = 36 deg. The sun altitude is -26.0 deg.
The galactic latitude b = 25 deg., longitude l = 268 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2779105
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
19952 | 2025-02-15 08:03:34 | MASTER-OAFA | (10h 25m 20.58s , -27d 18m 50.7s) | C | 120 | 19.2 |
20089 | 2025-02-15 08:05:51 | MASTER-OAFA | (10h 25m 27.87s , -27d 19m 50.1s) | C | 120 | 19.1 |
20229 | 2025-02-15 08:08:11 | MASTER-OAFA | (10h 25m 22.22s , -27d 20m 50.0s) | C | 120 | 19.2 |
20366 | 2025-02-15 08:10:29 | MASTER-OAFA | (10h 25m 26.63s , -27d 20m 46.2s) | C | 120 | 19.1 |
20501 | 2025-02-15 08:12:43 | MASTER-OAFA | (10h 25m 24.54s , -27d 18m 50.9s) | C | 120 | 19.1 |
20635 | 2025-02-15 08:14:57 | MASTER-OAFA | (10h 25m 24.64s , -27d 20m 24.4s) | C | 120 | 19.1 |
20756 | 2025-02-15 08:17:14 | MASTER-OAFA | (10h 25m 26.91s , -27d 19m 17.0s) | C | 90 | 18.8 |
20861 | 2025-02-15 08:18:58 | MASTER-OAFA | (10h 25m 20.89s , -27d 19m 50.8s) | C | 90 | 18.8 |
20982 | 2025-02-15 08:20:44 | MASTER-OAFA | (10h 25m 22.37s , -27d 18m 51.4s) | C | 120 | 19.1 |
21119 | 2025-02-15 08:23:01 | MASTER-OAFA | (10h 25m 28.21s , -27d 19m 51.3s) | C | 120 | 19.1 |
21256 | 2025-02-15 08:25:19 | MASTER-OAFA | (10h 25m 21.51s , -27d 20m 51.9s) | C | 120 | 19.0 |
21391 | 2025-02-15 08:27:34 | MASTER-OAFA | (10h 25m 27.37s , -27d 20m 41.7s) | C | 120 | 19.0 |
21526 | 2025-02-15 08:29:48 | MASTER-OAFA | (10h 25m 25.28s , -27d 18m 52.8s) | C | 120 | 19.0 |
21660 | 2025-02-15 08:32:03 | MASTER-OAFA | (10h 25m 25.40s , -27d 20m 40.2s) | C | 120 | 19.0 |
21795 | 2025-02-15 08:34:17 | MASTER-OAFA | (10h 25m 28.35s , -27d 19m 02.2s) | C | 120 | 19.0 |
21932 | 2025-02-15 08:36:35 | MASTER-OAFA | (10h 25m 21.96s , -27d 19m 54.5s) | C | 120 | 19.0 |
22067 | 2025-02-15 08:38:49 | MASTER-OAFA | (10h 25m 22.37s , -27d 18m 55.5s) | C | 120 | 18.9 |
22204 | 2025-02-15 08:41:06 | MASTER-OAFA | (10h 25m 28.60s , -27d 19m 56.0s) | C | 120 | 19.0 |
22337 | 2025-02-15 08:43:20 | MASTER-OAFA | (10h 25m 21.80s , -27d 20m 57.2s) | C | 120 | 18.8 |
22474 | 2025-02-15 08:45:37 | MASTER-OAFA | (10h 25m 28.74s , -27d 20m 57.8s) | C | 120 | 18.9 |
22609 | 2025-02-15 08:47:52 | MASTER-OAFA | (10h 25m 25.92s , -27d 19m 19.8s) | C | 120 | 18.9 |
22748 | 2025-02-15 08:50:11 | MASTER-OAFA | (10h 25m 26.03s , -27d 20m 48.4s) | C | 120 | 18.8 |
22886 | 2025-02-15 08:52:28 | MASTER-OAFA | (10h 25m 28.99s , -27d 19m 28.0s) | C | 120 | 18.7 |
23213 | 2025-02-15 08:57:55 | MASTER-OAFA | (10h 25m 24.10s , -27d 19m 02.5s) | C | 120 | 18.7 |
23486 | 2025-02-15 09:02:28 | MASTER-OAFA | (10h 25m 23.94s , -27d 21m 04.4s) | C | 120 | 18.7 |
23619 | 2025-02-15 09:04:42 | MASTER-OAFA | (10h 25m 29.40s , -27d 21m 00.5s) | C | 120 | 18.7 |
23754 | 2025-02-15 09:06:57 | MASTER-OAFA | (10h 25m 26.53s , -27d 19m 19.4s) | C | 120 | 18.6 |
23889 | 2025-02-15 09:09:12 | MASTER-OAFA | (10h 25m 26.64s , -27d 20m 45.9s) | C | 120 | 18.6 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.