Discovery certificate for object 2021lj
TNS Astronomical Transient Report No. 95746 [ 2021TNSTR..54....1M ]

Date Received (UTC): 2021-01-06 22:18:24
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 2021lj
Discoverer internal name: ZTF21aaaquaa
Coordinates (J2000): RA = 00:43:50.586 (10.9607744) DEC = +24:19:58.43 (24.3328976)
Discovery date: 2021-01-04 02:43:07.003 (JD=2459218.6132755)

Potential host galaxy: WISEA J004350.75+241958.2
Host redshift: 0.083682

Remarks: Early SN candidate (g-rise > 0.20+-0.13 mag/day) 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/ZTF21aaaquaa

Photometry

Discovery (first detection):
Discovery date: 2021-01-04 02:43:07.003
Flux: 20.1595 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-01-02 03:15:14
Limiting flux: 20.5464 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/2021lj