Discovery certificate for object 2021dfv
TNS Astronomical Transient Report No. 99872 [ 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 2021dfv
Discoverer internal name: ZTF21aakildw
Coordinates (J2000): RA = 08:59:40.210 (134.9175398) DEC = +40:56:20.95 (40.939152)
Discovery date: 2021-02-17 06:56:58.001 (JD=2459262.7895602)

Potential host galaxy: WISEA J085940.12+405621.5
Host redshift: 0.140787

Remarks: SN candidate 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/ZTF21aakildw

Photometry

Discovery (first detection):
Discovery date: 2021-02-17 06:56:58.001
Flux: 20.0976 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-02-17 05:15:36
Limiting flux: 20.2811 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/2021dfv