Discovery certificate for object 2021hqj
TNS Astronomical Transient Report No. 104787 [ 2021TNSTR.991....1F ]

Date Received (UTC): 2021-04-02 20:36:34
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, 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 2021hqj
Discoverer internal name: ZTF21aarspgu
Coordinates (J2000): RA = 18:31:47.807 (277.9491944) DEC = +29:32:14.00 (29.5372232)
Discovery date: 2021-04-02 11:51:04.000 (JD=2459306.9937963)

Potential host galaxy: WISEA J183147.52+293212.2

Remarks: Early SN candidate (r-rise > 0.43+-0.04 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/ZTF21aarspgu

Photometry

Discovery (first detection):
Discovery date: 2021-04-02 11:51:04.000
Flux: 18.3384 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2021-03-30 11:17:25
Limiting flux: 19.6505 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/2021hqj