TNS Astronomical Transient Report No. 308621 [ 2026TNSTR2533....1P ]
Date Received (UTC): 2026-06-15 23:30:31
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 2026pio
Discoverer internal name: LSST-AP-DO-170433140588807799
Coordinates (J2000): RA = 16:01:14.079 (240.308662) DEC = -16:22:06.16 (-16.368378)
Discovery date: 2026-05-22 05:32:49.000 (JD=2461182.7311227)
Potential host galaxy: DESI J240.3086-16.3683
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/170433140588807799/
Photometry
Discovery (first detection):
Discovery date: 2026-05-22 05:32:49.000
Flux: 23.25 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: Other
Remarks: SN candidate close to a catalogued galaxy
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026pio
Date Received (UTC): 2026-06-15 23:30:31
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 2026pio
Discoverer internal name: LSST-AP-DO-170433140588807799
Coordinates (J2000): RA = 16:01:14.079 (240.308662) DEC = -16:22:06.16 (-16.368378)
Discovery date: 2026-05-22 05:32:49.000 (JD=2461182.7311227)
Potential host galaxy: DESI J240.3086-16.3683
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/170433140588807799/
Photometry
Discovery (first detection):
Discovery date: 2026-05-22 05:32:49.000
Flux: 23.25 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: Other
Remarks: SN candidate close to a catalogued galaxy
Details of the new object can be viewed here: https://www.wis-tns.org/object/2026pio