TNS Astronomical Transient Report No. 308618 [ 2026TNSTR2533....1P ]

Date Received (UTC): 2026-06-15 22:53:34
Date made public:
Sender: Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: Rubin

I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, E. Lekaroz-Urriza, M. Quintana-Ansaldo (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 2026pim
Discoverer internal name: LSST-AP-DO-170433140716208930
Coordinates (J2000): RA = 16:13:02.556 (243.26065) DEC = -14:45:37.78 (-14.760494)
Discovery date: 2026-05-22 05:33:34.000 (JD=2461182.7316435)

Potential host galaxy: DESI J243.2599-14.7618

Remarks: Rubin SN candidate discovered using the public LSST alerts, the LSST brokers, and our SGLF filters. LSST light curve available at the LSST brokers, e.g.: https://lasair.lsst.ac.uk/objects/170433140716208930/

Photometry

Discovery (first detection):
Discovery date: 2026-05-22 05:33:34.000
Flux: 22.37 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope

Last non-detection:
Archival info: Other
Remarks: No catalogued source at this position.

Details of the new object can be viewed here: https://www.wis-tns.org/object/2026pim