RA/DEC (2000)
15:54:15.056 -59:49:52.83
238.562733 -59.831342
Type
---
Redshift
Discovery Report
Related AstroNotes: 2025-206
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-01 20:45:54.144
TNS AT
Y
Public
Y
Discovery Mag
18.883
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Light curves

 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_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
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-06-30 03:36:41 - 2025-06-30 03:36:41 2460856.65047 - 2460856.65047 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
500746 2025-06-30 03:36:41 2460856.65047 18.68 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-01 20:45:54 - 2025-07-01 20:45:54 2460858.36521 - 2460858.36521 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
500747 2025-07-01 20:45:54 2460858.36521 18.883 0.165 18.62 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-05-15 06:42:41 - 2025-07-25 23:59:38 2460810.7796412 - 2460882.4997454 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505068 2025-07-25 23:59:38 2460882.4997454 19.03 0.11 20.55 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
505067 2025-05-15 06:42:41 2460810.7796412 19.16 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
263785 2025-07-26 06:32:02 BlackGEM_Bot1 G. Ramsay, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 15:54:15.056 -59:49:52.83 2025-07-25 23:59:38.000 19.03 BG-q-BlackGem PSN BGEM J155415.05-594952.8 BlackGEM N
261476 2025-07-04 12:36:21 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 15:54:15.078 -59:49:53.36 2025-07-01 20:45:54.144 18.883 orange-ATLAS PSN ATLAS25gxh ATLAS 2025TNSTR2553....1T N
No Data

Comments

TNS
System

Sat, 07/26/2025 - 06:32

Object coordinates updated

Object coordinates updated according to AT-report 263785 of Group BlackGEM
Previous RA, DEC: 15:54:15.078, -59:49:53.36 (238.562825, -59.83149)
Updated RA, DEC: 15:54:15.056, -59:49:52.83 (238.562733, -59.831342)