Discovery certificate for object 2020efc
TNS Astronomical Transient Report No. 63767 [ 2020TNSTR.738....1F ]

Date Received (UTC): 2020-03-07 19:06:23
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, 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 2020efc
Discoverer internal name: ZTF20aasxxys
Coordinates (J2000): RA = 07:24:17.854 (111.0743919) DEC = +33:03:50.73 (33.0640923)
Discovery date: 2020-03-07 03:27:04.000 (JD=2458915.6437963)

Potential host galaxy: SDSS J072417.49+330349.6
Host redshift: 0.207

Remarks: Early SN candidate (r-rise > 0.46+-0.04 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aasxxys

Photometry

Discovery (first detection):
Discovery date: 2020-03-07 03:27:04.000
Flux: 18.5475 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-03-04 04:10:30
Limiting flux: 19.9009 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/2020efc