Discovery certificate for object 2021gkh
TNS Astronomical Transient Report No. 103167 [ 2021TNSTR.834....1M ]

Date Received (UTC): 2021-03-20 00:09:16
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F. Forster, F.E. Bauer, G. Pignata, L. Hernandez-Garcia, L. Galbany, 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 2021gkh
Discoverer internal name: ZTF21aaqajqv
Coordinates (J2000): RA = 11:24:44.080 (171.1836656) DEC = +15:16:29.37 (15.27482505)
Discovery date: 2021-03-19 07:05:47.996 (JD=2459292.7956944)

Potential host galaxy: WISEA J112444.54+151632.1
Host redshift: 0.003776

Remarks: Early SN candidate (g-rise > 1.00+-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/ZTF21aaqajqv

Photometry

Discovery (first detection):
Discovery date: 2021-03-19 07:05:47.996
Flux: 18.6753 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-03-17 08:11:46
Limiting flux: 20.7155 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/2021gkh