TNS Astronomical Transient Report No. 266530 [ 2025TNSTR3258....1P ]
Date Received (UTC): 2025-08-18 19:06:53
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF Discovery Data Source: ZTF
I. Pérez-Fournon (IAC and ULL), B. Armas-Chinea, D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, M. Quintana-Ansaldo E. Lekaroz-Urriza (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025umc
Discoverer internal name: ZTF25abjpiwx
Coordinates (J2000): RA = 00:04:24.588 (1.10245) DEC = -08:39:01.67 (-8.650464)
Discovery date: 2025-08-16 08:48:41.000 (JD=2460903.8671412)
Potential host galaxy: SDSS J000424.63-083900.9
Host redshift: 0.1771
Remarks: SN candidate discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://lasair-ztf.lsst.ac.uk/objects/ZTF25abjpiwx/ https://alerce.online/object/ZTF25abjpiwx
Photometry
Discovery (first detection):
Discovery date: 2025-08-16 08:48:41.000
Flux: 20.403 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Last non-detection:
Last non-detection date: 2025-08-14 09:34:48
Limiting flux: 19.25 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025umc
Date Received (UTC): 2025-08-18 19:06:53
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF Discovery Data Source: ZTF
I. Pérez-Fournon (IAC and ULL), B. Armas-Chinea, D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, M. Quintana-Ansaldo E. Lekaroz-Urriza (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF report/s the discovery of a new astronomical transient.
IAU Designation: AT 2025umc
Discoverer internal name: ZTF25abjpiwx
Coordinates (J2000): RA = 00:04:24.588 (1.10245) DEC = -08:39:01.67 (-8.650464)
Discovery date: 2025-08-16 08:48:41.000 (JD=2460903.8671412)
Potential host galaxy: SDSS J000424.63-083900.9
Host redshift: 0.1771
Remarks: SN candidate discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://lasair-ztf.lsst.ac.uk/objects/ZTF25abjpiwx/ https://alerce.online/object/ZTF25abjpiwx
Photometry
Discovery (first detection):
Discovery date: 2025-08-16 08:48:41.000
Flux: 20.403 ABMag
Filter: i-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Last non-detection:
Last non-detection date: 2025-08-14 09:34:48
Limiting flux: 19.25 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025umc