TNS Astronomical Transient Report No. 293890 [ 2026TNSTR.965....1P ]
Date Received (UTC): 2026-03-08 12:18:57
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: SN 2026fbm
Discoverer internal name: LSST-AP-DO-170094456357257301
Coordinates (J2000): RA = 10:00:07.824 (150.0326) DEC = +03:01:27.07 (3.024186)
Discovery date: 2026-03-06 02:17:16.000 (JD=2461105.5953241)
Potential host galaxy: SDSS J100007.69+030126.8
Remarks: Recent Rubin SN candidate in the COSMOS DDF field 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/170094456357257301/
Photometry
Discovery (first detection):
Discovery date: 2026-03-06 02:17:16.000
Flux: 21.53 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026fbm
Date Received (UTC): 2026-03-08 12:18:57
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: SN 2026fbm
Discoverer internal name: LSST-AP-DO-170094456357257301
Coordinates (J2000): RA = 10:00:07.824 (150.0326) DEC = +03:01:27.07 (3.024186)
Discovery date: 2026-03-06 02:17:16.000 (JD=2461105.5953241)
Potential host galaxy: SDSS J100007.69+030126.8
Remarks: Recent Rubin SN candidate in the COSMOS DDF field 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/170094456357257301/
Photometry
Discovery (first detection):
Discovery date: 2026-03-06 02:17:16.000
Flux: 21.53 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Last non-detection:
Archival info: SDSS
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026fbm