Discovery certificate for object 2020tpy
TNS Astronomical Transient Report No. 82569 [ 2020TNSTR2842....1F ]

Date Received (UTC): 2020-09-18 23:20:08
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, L. Hernandez-Garcia, A. Munoz-Arancibia, F.E. Bauer, L. Galbany, G. Pignata, 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 2020tpy
Discoverer internal name: ZTF20acarerj
Coordinates (J2000): RA = 02:12:45.816 (33.1908997) DEC = +07:29:26.12 (7.4905889)
Discovery date: 2020-09-18 10:32:20.003 (JD=2459110.9391204)

Potential host galaxy: WISEA J021245.81+072926.5
Host redshift: 0.180979

Remarks: Early SN candidate (r-rise > 0.37+-0.18 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20acarerj

Photometry

Discovery (first detection):
Discovery date: 2020-09-18 10:32:20.003
Flux: 19.7517 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-09-18 08:08:14
Limiting flux: 20.3008 ABMag
Filter: g-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/2020tpy