Discovery certificate for object 2021Y
TNS Astronomical Transient Report No. 95311 [ 2021TNSTR...9....1F ]

Date Received (UTC): 2021-01-02 18:34:12
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, 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: SN 2021Y
Discoverer internal name: ZTF21aaaekuh
Coordinates (J2000): RA = 03:48:24.929 (57.1038696666667) DEC = -22:36:07.38 (-22.6020501666667)
Discovery date: 2021-01-01 04:03:23.000 (JD=2459215.6690162)

Potential host galaxy: WISEA J034824.58-223604.6

Remarks: Early SN candidate (g-rise > 0.09+-0.03 mag/day, r-rise > 0.08+-0.03 mag/day) 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/ZTF21aaaekuh

Photometry

Discovery (first detection):
Discovery date: 2021-01-01 04:03:23.000
Flux: 19.1755 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-12-24 06:03:15
Limiting flux: 16.364 ABMag
Filter: r-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/2021Y