Discovery certificate for object 2021O
TNS Astronomical Transient Report No. 95269 [ 2021TNSTR...1....1F ]

Date Received (UTC): 2021-01-01 16:43:48
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, A. Munoz-Arancibia, G. Pignata, L. Hernandez-Garcia, L. Galbany, G. Pignata, E. Camacho, J. Silva-Farfan, A. Mourao, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2021O
Discoverer internal name: ZTF21aaabzde
Coordinates (J2000): RA = 14:07:32.381 (211.8849213) DEC = +08:54:01.09 (8.9003029)
Discovery date: 2021-01-01 13:08:29.996 (JD=2459216.0475694)

Potential host galaxy: SDSS J140732.42+085401.1
Host redshift: 0.116

Remarks: SN candidate classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF21aaabzde

Photometry

Discovery (first detection):
Discovery date: 2021-01-01 13:08:29.996
Flux: 19.5543 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-12-23 13:02:32
Limiting flux: 17.9907 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Details of the new object can be viewed here: https://www.wis-tns.org/object/2021O