Discovery certificate for object 2021cke
TNS Astronomical Transient Report No. 98918 [ 2021TNSTR.395....1F ]

Date Received (UTC): 2021-02-09 19:25:21
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, A. Munoz-Arancibia, L. Hernandez-Garcia, G. Pignata, 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 2021cke
Discoverer internal name: ZTF21aaivpms
Coordinates (J2000): RA = 01:55:20.761 (28.8365023) DEC = +56:23:11.75 (56.3865966)
Discovery date: 2021-02-09 03:53:19.997 (JD=2459254.662037)

Potential host galaxy: WISEA J015520.87+562312.6

Remarks: Early SN candidate (r-rise > 0.85+-0.05 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/ZTF21aaivpms

Photometry

Discovery (first detection):
Discovery date: 2021-02-09 03:53:19.997
Flux: 18.7993 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-02-09 03:19:21
Limiting flux: 20.4486 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/2021cke