Discovery certificate for object 2021is
TNS Astronomical Transient Report No. 95622 [ 2021TNSTR..39....1M ]

Date Received (UTC): 2021-01-05 20:13:17
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 2021is
Discoverer internal name: ZTF21aabawlm
Coordinates (J2000): RA = 01:34:21.402 (23.5891742) DEC = -15:20:59.35 (-15.3498184)
Discovery date: 2021-01-05 04:36:50.996 (JD=2459219.6922569)

Potential host galaxy: WISEA J013421.34-152057.9
Host redshift: 0.083534

Remarks: Early SN candidate (g-rise > 0.06+-0.00 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/ZTF21aabawlm

Photometry

Discovery (first detection):
Discovery date: 2021-01-05 04:36:50.996
Flux: 18.97 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-01-05 04:05:52
Limiting flux: 19.9219 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/2021is