Discovery certificate for object 2021ann
TNS Astronomical Transient Report No. 97013 [ 2021TNSTR.160....1F ]

Date Received (UTC): 2021-01-16 19:30:31
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, A. Munoz-Arancibia, G. Pignata, L. Hernandez-Garcia, L. Galbany, 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 2021ann
Discoverer internal name: ZTF21aaezirc
Coordinates (J2000): RA = 08:51:07.102 (132.77959155) DEC = -17:29:17.04 (-17.48806575)
Discovery date: 2021-01-16 08:02:18.004 (JD=2459230.8349306)


Remarks: SN candidate classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF21aaezirc

Photometry

Discovery (first detection):
Discovery date: 2021-01-16 08:02:18.004
Flux: 19.7581 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-01-14 09:23:16
Limiting flux: 20.2736 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/2021ann