Discovery certificate for object 2020abcm
TNS Astronomical Transient Report No. 90928 [ 2020TNSTR3587....1F ]

Date Received (UTC): 2020-11-28 15:56:27
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 2020abcm
Discoverer internal name: ZTF20acudbsg
Coordinates (J2000): RA = 09:12:44.535 (138.1855634) DEC = +63:11:12.47 (63.1867979)
Discovery date: 2020-11-28 11:19:03.000 (JD=2459181.9715625)

Potential host galaxy: SDSS J091244.57+631111.0
Host redshift: 0.104

Remarks: Early SN candidate (r-rise > 0.10+-0.04 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/ZTF20acudbsg

Photometry

Discovery (first detection):
Discovery date: 2020-11-28 11:19:03.000
Flux: 20.0403 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-11-26 08:44:48
Limiting flux: 19.6373 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/2020abcm