Discovery certificate for object 2020afg
TNS Astronomical Transient Report No. 59084 [ 2020TNSTR.170....1F ]

Date Received (UTC): 2020-01-18 15:47:22
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, G. Pignata, F.E. Bauer, 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, F.E. Bauer, 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 2020afg
Discoverer internal name: ZTF20aagnbfh
Coordinates (J2000): RA = 17:39:23.542 (264.848091466667) DEC = +64:55:17.92 (64.9216448)
Discovery date: 2020-01-18 12:50:56.000 (JD=2458867.0353704)

Potential host galaxy: SDSS J173924.18+645522.1
Host redshift: 0.078

Remarks: Early SN candidate (g-rise > 0.10+-0.01 mag/day, r-rise > 0.09+-0.01 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aagnbfh

Photometry

Discovery (first detection):
Discovery date: 2020-01-18 12:50:56.000
Flux: 18.9719 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-01-13 13:11:31
Limiting flux: 19.0684 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://wis-tns.weizmann.ac.il/object/2020afg