RA/DEC (2000)
02:46:41.670 -19:01:15.65
41.673625 -19.021014
Type
---
Redshift
Discovery Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-09-13 15:09:31.968
TNS AT
Y
Public
Y
Discovery Mag
19.62
Filter
L-GOTO
Reporter/s
G. Ramsay, D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Light curves

 ▌GOTO-S_GOTO-3_L
 ▌BG4_BlackGEM-Cam4_BG-q
   
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
L-GOTO GOTO-S_GOTO-3 2025-09-02 15:39:59 - 2025-09-13 15:09:32 2460921.152769 - 2460932.131617 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518006 2025-09-13 15:09:32 2460932.131617 19.62 0.17 ABMag L-GOTO GOTO-S_GOTO-3 180
518005 2025-09-02 15:39:59 2460921.152769 19.7 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-08-26 08:16:30 - 2025-09-16 07:00:15 2460913.8447917 - 2460934.7918403 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518350 2025-09-16 07:00:15 2460934.7918403 19.26 0.09 21.05 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
518349 2025-08-26 08:16:30 2460913.8447917 21.29 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
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
270581 2025-09-18 13:33:15 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 02:46:41.670 -19:01:15.65 2025-09-16 07:00:15.000 19.26 BG-q-BlackGem PSN BGEM J024641.67-190115.7 BlackGEM N
270433 2025-09-17 09:38:48 GOTO_bot G. Ramsay, D. O'Neill, K. Ackley et al. GOTO GOTO 02:46:41.651 -19:01:15.72 2025-09-13 15:09:31.968 19.62 L-GOTO Other GOTO25hcp GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Rachel A. Ford, Virgilio Gonano, Henryk Krawczyk, Amoli Kakkar, M.T. Mazzucato 2025TNSTR3738....1R N
No Data

Comments

TNS
System

Thu, 09/18/2025 - 13:33

Object coordinates updated

Object coordinates updated according to AT-report 270581 of Group BlackGEM
Previous RA, DEC: 02:46:41.651, -19:01:15.72 (41.673544, -19.021033)
Updated RA, DEC: 02:46:41.670, -19:01:15.65 (41.673625, -19.021014)