Discovery certificate for object 2020efb
TNS Astronomical Transient Report No. 63766 [ 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: SN 2020efb
Discoverer internal name: ZTF20aasxrko
Coordinates (J2000): RA = 06:24:53.393 (96.2224697333333) DEC = +46:27:48.19 (46.4633849666667)
Discovery date: 2020-03-07 02:55:57.000 (JD=2458915.6221875)

Potential host galaxy: SDSS J062453.19+462746.1
Host redshift: 0.084

Remarks: Early SN candidate (r-rise > 0.17+-0.06 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aasxrko

Photometry

Discovery (first detection):
Discovery date: 2020-03-07 02:55:57.000
Flux: 19.4574 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 04:25:29
Limiting flux: 19.8656 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/2020efb