Discovery certificate for object 2020stt
TNS Astronomical Transient Report No. 81504 [ 2020TNSTR2741....1F ]

Date Received (UTC): 2020-09-07 19:42:58
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 2020stt
Discoverer internal name: ZTF20abyrxir
Coordinates (J2000): RA = 16:36:10.273 (249.0428037) DEC = +24:30:30.58 (24.5084934)
Discovery date: 2020-09-07 03:21:42.998 (JD=2459099.640081)

Potential host galaxy: WISEA J163610.10+243030.1
Host redshift: 0.114321

Remarks: Early SN candidate (r-rise > 0.10+-0.03 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20abyrxir

Photometry

Discovery (first detection):
Discovery date: 2020-09-07 03:21:42.998
Flux: 19.6114 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-09-03 04:12:00
Limiting flux: 19.6088 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/2020stt