Discovery certificate for object 2020sy
TNS Astronomical Transient Report No. 58553 [ 2020TNSTR..98....1F ]

Date Received (UTC): 2020-01-11 20:05:24
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: SN 2020sy
Discoverer internal name: ZTF20aaetrle
Coordinates (J2000): RA = 04:01:07.180 (60.2799146) DEC = +31:48:46.60 (31.8129431)
Discovery date: 2020-01-11 02:43:50.000 (JD=2458859.6137731)

Potential host galaxy: WISEA J040106.60+314844.2

Remarks: Early SN candidate (g-rise > 0.09+-0.02 mag/day, r-rise > 0.18+-0.02 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aaetrle

Photometry

Discovery (first detection):
Discovery date: 2020-01-11 02:43:50.000
Flux: 19.6329 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-01-05 03:38:58
Limiting flux: 19.6182 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/2020sy