Discovery certificate for object 2020usw
TNS Astronomical Transient Report No. 83838 [ 2020TNSTR3004....1F ]

Date Received (UTC): 2020-10-03 20:13:54
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, A. Munoz-Arancibia, F.E. Bauer, L. Hernandez-Garcia, G. Pignata, 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 2020usw
Discoverer internal name: ZTF20acgnirp
Coordinates (J2000): RA = 01:26:14.180 (21.5590828666667) DEC = +83:15:33.76 (83.2593774)
Discovery date: 2020-09-28 07:54:57.001 (JD=2459120.8298264)

Potential host galaxy: WISEA J012614.29+831535.3

Remarks: Early SN candidate (g-rise > 0.26+-0.08 mag/day, r-rise > 0.12+-0.03 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20acgnirp

Photometry

Discovery (first detection):
Discovery date: 2020-09-28 07:54:57.001
Flux: 19.8589 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-09-25 08:36:27
Limiting flux: 20.5561 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/2020usw