Discovery certificate for object 2021dfk
TNS Astronomical Transient Report No. 99860 [ 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 2021dfk
Discoverer internal name: ZTF21aalgyil
Coordinates (J2000): RA = 09:53:54.766 (148.4781924) DEC = +02:57:51.83 (2.9643973)
Discovery date: 2021-02-17 07:54:15.002 (JD=2459262.8293403)

Potential host galaxy: WISEA J095354.10+025750.2
Host redshift: 0.071052

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/ZTF21aalgyil

Photometry

Discovery (first detection):
Discovery date: 2021-02-17 07:54:15.002
Flux: 20.4034 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 06:00:13
Limiting flux: 19.9163 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/2021dfk