RA/DEC (2000)
17:43:41.251 -23:57:53.63
265.921879 -23.964897
Type
---
Redshift
Discovery Report
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2025-07-23 16:29:08.160
TNS AT
Y
Public
Y
Discovery Mag
18.26
Filter
Clear-
Reporter/s
Ziyang Mai, Jianlin Xu, Mi Zhang, Guoyou Sun, Jiangao Ruan, Jingyuan Zhao, Wenjie Zhou, Yong Ma, Ye, Zhuoyang Chen (Xingming Obs.), Hanjie Tan (AUUK), Guangwei Wu (NAAA), Xing Gao, Ali Esamdin, Chunhai Bai, Yong Wang (XAO), on behalf of the KATS team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Light curves

 ▌BG4_BlackGEM-Cam4_BG-q
 ▌Other_Other_Clear
   
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
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-04-21 09:49:16 - 2025-07-16 03:23:58 2460786.909213 - 2460872.6416435 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504796 2025-07-16 03:23:58 2460872.6416435 18.29 0.09 20.27 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
504795 2025-04-21 09:49:16 2460786.909213 20.38 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
Clear- Other_Other 2025-07-23 16:29:08 - 2025-07-23 16:29:08 2460880.1869 - 2460880.1869 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504461 2025-07-23 16:29:08 2460880.1869 18.26 0.18 20 VegaMag Clear- Other_Other 60 Xing Gao
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
263665 2025-07-25 09:37:51 BlackGEM_Bot1 H. Tranin,F. Stoppa,D. Pieterse et al. BlackGEM BlackGEM 17:43:41.251 -23:57:53.63 2025-07-16 03:23:58.000 18.29 BG-q-BlackGem 1 PSN BGEM J174341.25-235753.6 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025ryh_atrep_263665_BlackGEM.pdf Finding Chart 2025-07-25 09:37:53 BlackGEM_Bot1
263519 2025-07-23 23:01:50 Mi Zhang Ziyang Mai,Jianlin Xu,Mi Zhang et al. XOSS XOSS 17:43:41.230 -23:57:54.20 2025-07-23 16:29:08.160 18.26 Clear- Other KATS25O015 XOSS CV/SN candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats25o015.html 2025TNSTR2853....1M N
No Data

Comments

Wenjie
Zhou

Sun, 07/27/2025 - 09:30

Indepent discovery

Independent discovery of a Microlensing event candidate KATS25O015=AT 2025ryh=OGLE-2025-BLG-0905. Also warn by OGLE on OB page.

TNS
System

Fri, 07/25/2025 - 09:37

Object coordinates updated

Object coordinates updated according to AT-report 263665 of Group BlackGEM
Previous RA, DEC: 17:43:41.230, -23:57:54.20 (265.921792, -23.965056)
Updated RA, DEC: 17:43:41.251, -23:57:53.63 (265.921879, -23.964897)