TNS Astronomical Transient Report No. 254608 [ 2025TNSTR1731....1R ]

Date Received (UTC): 2025-05-09 05:31:37
Date made public:
Sender: Fritz
Reporting Group: ZTF     Discovery Data Source: ZTF

Nabeel Rehemtulla (CIERA, NU), 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 2025ket
Discoverer internal name: ZTF25aaoztdm
Coordinates (J2000): RA = 07:47:41.017 (116.9209059) DEC = +52:05:42.73 (52.0952041)
Discovery date: 2025-05-03 06:16:16.000 (JD=2460798.7612963)


Remarks: Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).

Photometry

Discovery (first detection):
Discovery date: 2025-05-03 06:16:16.000
Flux: 19.3903 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2025-05-01 06:13:55
Limiting flux: 20.1812 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/2025ket