Discovery certificate for object 2021cgo
TNS Astronomical Transient Report No. 98775 [ 2021TNSTR.383....1F ]

Date Received (UTC): 2021-02-08 21:20:41
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 2021cgo
Discoverer internal name: ZTF21aaitkyq
Coordinates (J2000): RA = 14:40:20.254 (220.08439055) DEC = +19:16:51.73 (19.2810373)
Discovery date: 2021-02-08 11:57:54.003 (JD=2459253.9985417)

Potential host galaxy: WISEA J144019.70+191650.0
Host redshift: 0.095812

Remarks: Early SN candidate (g-rise > 0.31+-0.08 mag/day, r-rise > 0.44+-0.22 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/ZTF21aaitkyq

Photometry

Discovery (first detection):
Discovery date: 2021-02-08 11:57:54.003
Flux: 20.2416 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-02-07 12:25:50
Limiting flux: 20.6754 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/2021cgo