TNS Astronomical Transient Report No. 270339 [ 2025TNSTR3725....1S ]

Date Received (UTC): 2025-09-16 16:17:57
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2025xsi
Discoverer internal name: ZTF25abpffea
Coordinates (J2000): RA = 15:19:07.448 (229.7810329) DEC = -02:51:39.51 (-2.8609761)
Discovery date: 2025-09-07 03:17:47.999 (JD=2460925.6373611)



Photometry

Discovery (first detection):
Discovery date: 2025-09-07 03:17:47.999
Flux: 19.4476 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-09-02 03:28:02
Limiting flux: 19.5486 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2025xsi