RA/DEC (2000)
00:47:08.229 -43:15:47.54
11.784287 -43.263206
Type
---
Redshift
Discovery Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-04 16:51:18.720
TNS AT
Y
Public
Y
Discovery Mag
19.77
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, 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-4_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌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-4 2025-07-16 15:47:53 - 2025-08-04 16:51:19 2460873.158251 - 2460892.202299 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509101 2025-08-04 16:51:19 2460892.202299 19.77 0.17 ABMag L-GOTO GOTO-S_GOTO-4 360
509100 2025-07-16 15:47:53 2460873.158251 19.7 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-08-10 08:56:05 - 2025-08-14 05:46:47 2460897.87228 - 2460901.74082 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509106 2025-08-14 05:46:47 2460901.74082 19.355 0.145 19.72 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 110 Robot
509105 2025-08-10 08:56:05 2460897.87228 18.4 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2024-12-07 01:01:44 - 2024-12-09 01:02:24 2460651.5428704 - 2460653.5433333 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
586820 2024-12-09 01:02:24 2460653.5433333 20.49 0.16 20.69 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
586819 2024-12-07 01:01:44 2460651.5428704 20.67 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
305974 2026-05-27 15:43:09 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 00:47:08.229 -43:15:47.54 2024-12-09 01:02:24.000 20.49 BG-q-BlackGem PSN BGEM J004708.23-431547.5 BlackGEM N
265981 2025-08-15 22:16:27 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 00:47:08.215 -43:15:46.90 2025-08-14 05:46:46.848 19.355 orange-ATLAS PSN ATLAS25jmy ATLAS N
265977 2025-08-15 19:14:24 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 00:47:08.231 -43:15:47.80 2025-08-04 16:51:18.720 19.77 L-GOTO Other GOTO25fuq GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Cledison Marcos da Silva, Virgilio Gonano, T. G. Fisher, Antonio Pasqua, Svetoslav Alexandrov 2025TNSTR3209....1O N
No Data

Comments

TNS
System

Wed, 05/27/2026 - 15:43

Object coordinates updated

Object coordinates updated according to AT-report 305974 of Group BlackGEM
Previous RA, DEC: 00:47:08.215, -43:15:46.90 (11.7842283333, -43.2630266667)
Updated RA, DEC: 00:47:08.229, -43:15:47.54 (11.784287, -43.263206)

TNS
System

Fri, 08/15/2025 - 22:16

Object coordinates updated

Object coordinates updated according to AT-report 265981 of Group ATLAS
Previous RA, DEC: 00:47:08.231, -43:15:47.80 (11.784296, -43.263279)
Updated RA, DEC: 00:47:08.215, -43:15:46.90 (11.7842283333, -43.2630266667)