TNS Astronomical Transient Report No. 307256
Date Received (UTC): 2026-06-09 17:25:24
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: Rubin
S. Jurado, F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026okf
Discoverer internal name: LSST-AP-DO-170433141101560969
Coordinates (J2000): RA = 16:17:28.057 (244.36690383089) DEC = -12:49:32.40 (-12.825665981809)
Discovery date: 2026-05-22 05:35:44.011 (JD=2461182.7331483)
Remarks: SN candidate classified using ALeRCE's stamp classifier and the public Rubin/LSST stream. Discovery image and light curve in https://lsst.alerce.online/object/170433141101560969?survey=lsst
Photometry
Discovery (first detection):
Discovery date: 2026-05-22 05:35:44.011
Flux: 22.8062 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Remarks: Data provided by Rubin/LSST
Last non-detection:
Archival info: Other
Remarks: LSST non-detection limits not available
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026okf
Date Received (UTC): 2026-06-09 17:25:24
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: Rubin
S. Jurado, F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: AT 2026okf
Discoverer internal name: LSST-AP-DO-170433141101560969
Coordinates (J2000): RA = 16:17:28.057 (244.36690383089) DEC = -12:49:32.40 (-12.825665981809)
Discovery date: 2026-05-22 05:35:44.011 (JD=2461182.7331483)
Remarks: SN candidate classified using ALeRCE's stamp classifier and the public Rubin/LSST stream. Discovery image and light curve in https://lsst.alerce.online/object/170433141101560969?survey=lsst
Photometry
Discovery (first detection):
Discovery date: 2026-05-22 05:35:44.011
Flux: 22.8062 ABMag
Filter: i-LSST
Instrument: LSSTCam
Telescope: Rubin Observatory - Simonyi Survey Telescope
Remarks: Data provided by Rubin/LSST
Last non-detection:
Archival info: Other
Remarks: LSST non-detection limits not available
Details of the new object can be viewed here: https://sandbox.wis-tns.org/object/2026okf