Discovery certificate for object 2021dfg
TNS Astronomical Transient Report No. 99854 [ 2021TNSTR.503....1F ]

Date Received (UTC): 2021-02-18 20:05:04
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, 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 2021dfg
Discoverer internal name: ZTF21aalhqhx
Coordinates (J2000): RA = 10:47:56.752 (161.9864664) DEC = +12:58:19.40 (12.9720544)
Discovery date: 2021-02-13 08:47:41.004 (JD=2459258.8664468)

Potential host galaxy: SDSS J104756.73+125819.4

Remarks: Early SN candidate (r-rise > 0.09+-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/ZTF21aalhqhx

Photometry

Discovery (first detection):
Discovery date: 2021-02-13 08:47:41.004
Flux: 20.5795 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-02-13 08:11:09
Limiting flux: 20.3732 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/2021dfg