RA/DEC (2000)
11:47:35.947 +00:17:17.77
176.89978 +0.28827
Type
---
Redshift
Discovery Report
Reporting Group
MASTER
Discovering Data Source
MASTER
Discovery Date
2026-05-10 00:41:11.000
TNS AT
Y
Public
Y
Discovery Mag
20.9
Filter
Other-
Reporter/s
O.Ershova, Ya.Kechin, V.Lipunov (Lomonosov MSU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A.Sosnovskij (CrAO), 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)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Light curves

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-S_GOTO-3_L
 ▌GOTO-N_GOTO-1_L
 ▌Other_Other_Other
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
No Data
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-05-09 00:15:59 - 2026-05-09 22:30:46 2461169.5111 - 2461170.43803 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580878 2026-05-09 22:30:46 2461170.43803 19.513 0.184 19.5 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
580877 2026-05-09 00:15:59 2461169.5111 18.89 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-05-09 10:38:10 - 2026-05-09 10:38:10 2461169.943171 - 2461169.943171 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580831 2026-05-09 10:38:10 2461169.943171 20.4 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2026-05-09 21:56:20 - 2026-05-09 21:56:20 2461170.414115 - 2461170.414115 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580832 2026-05-09 21:56:20 2461170.414115 20.13 0.16 ABMag L-GOTO GOTO-N_GOTO-1 360
Other- Other_Other 2026-04-09 07:37:55 - 2026-05-10 00:45:10 2461139.818 - 2461170.53137 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
580829 2026-05-10 00:45:10 2461170.53137 20.9 19.8 VegaMag Other- Other_Other 120 Robot MASTER-OAFA
580830 2026-05-10 00:41:11 2461170.5285995 20.9 19.8 VegaMag Other- Other_Other 120 Robot MASTER-OAFA
580828 2026-04-09 07:37:55 2461139.818 19.7 VegaMag Other- Other_Other 60 Robot [Last non detection] MASTER-OAFA
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
302916 2026-05-10 11:22:15 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:47:35.947 +00:17:17.77 2026-05-09 22:30:45.792 19.513 wide-ATLAS PSN ATLAS26fja ATLAS N
302892 2026-05-10 09:31:16 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:47:35.960 +00:17:17.79 2026-05-09 21:56:19.968 20.13 L-GOTO Other GOTO26emi GOTO N
302891 2026-05-10 09:20:18 MASTER O.Ershova, Ya.Kechin, V.Lipunov (Lomonosov MSU) et al. MASTER MASTER 11:47:35.910 +00:17:17.70 2026-05-10 00:41:11.000 20.9 Other- PSN MASTER OT J114735.91+001717.7 MASTER optical counterpart of SVOM GRB 260509A T1=2026-05-10 00:41:11 (10.031377) T2=2026-05-10 00:45:03 (10.0312847) 2026TNSTR2026....1E N
No Data

Comments

Vladimir
Lipunov

Sun, 05/10/2026 - 14:17

MASTER

The first time of detection by MASTER is 
T1=2026-05-10 00:41:11 (10.031377) 
the second (confirmation) is 
T2=2026-05-10 00:45:03 (10.0312847).

(During publication procedure the field "discovery time" was typo as 2026-05-09 05:24:46UT from 2026lig)

TNS
System

Sun, 05/10/2026 - 11:22

Object coordinates updated

Object coordinates updated according to AT-report 302916 of Group ATLAS
Previous RA, DEC: 11:47:35.960, +00:17:17.79 (176.899834, +0.288276)
Updated RA, DEC: 11:47:35.947, +00:17:17.77 (176.89978, +0.28827)

TNS
System

Sun, 05/10/2026 - 09:31

Object coordinates updated

Object coordinates updated according to AT-report 302892 of Group GOTO
Previous RA, DEC: 11:47:35.910, +00:17:17.70 (176.899625, +0.28825)
Updated RA, DEC: 11:47:35.960, +00:17:17.79 (176.899834, +0.288276)