Discovery certificate for object 2021btu
TNS Astronomical Transient Report No. 98353 [ 2021TNSTR.330....1M ]

Date Received (UTC): 2021-02-04 18:46:35
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F. Forster, F.E. Bauer, L. Hernandez-Garcia, G. Pignata, 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 2021btu
Discoverer internal name: ZTF21aagtrft
Coordinates (J2000): RA = 16:37:24.391 (249.3516273) DEC = +39:46:09.25 (39.76923595)
Discovery date: 2021-02-04 12:12:44.001 (JD=2459250.0088426)

Potential host galaxy: WISEA J163724.26+394608.7

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/ZTF21aagtrft

Photometry

Discovery (first detection):
Discovery date: 2021-02-04 12:12:44.001
Flux: 20.0246 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-01-18 12:51:32
Limiting flux: 20.7676 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/2021btu