Discovery certificate for object 2020spb
TNS Astronomical Transient Report No. 81332 [ 2020TNSTR2725....1F ]

Date Received (UTC): 2020-09-05 19:48:40
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 2020spb
Discoverer internal name: ZTF20abyefje
Coordinates (J2000): RA = 17:12:27.989 (258.1166214) DEC = +15:35:25.24 (15.5903432)
Discovery date: 2020-09-04 04:38:51.999 (JD=2459096.6936574)

Potential host galaxy: WISEA J171227.97+153523.1

Remarks: Early SN candidate (r-rise > 0.06+-0.01 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20abyefje

Photometry

Discovery (first detection):
Discovery date: 2020-09-04 04:38:51.999
Flux: 19.4389 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-09-02 06:56:26
Limiting flux: 18.8706 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://www.wis-tns.org/object/2020spb