Discovery certificate for object 2021hcj
TNS Astronomical Transient Report No. 103943 [ 2021TNSTR.929....1P ]

Date Received (UTC): 2021-03-26 01:20:48
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

F. Poidevin, I. Perez-Fournon, C. Jimenez Angel (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (Univ. of Geneva), S. Geier (GRANTECAN & IAC), Y. Shu (MPA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2021hcj
Discoverer internal name: ZTF21aapfocd
Coordinates (J2000): RA = 12:21:28.440 (185.3685) DEC = +43:20:18.29 (43.338414)
Discovery date: 2021-03-17 07:48:32.000 (JD=2459290.8253704)


Remarks: Data were provided by the Zwicky Transient Facility (https://www.ztf.caltech.edu) and processed through the Lasair (https://lasair.roe.ac.uk), ALeRCE (https://alerce.online), ANTARES (https://antares.noirlab.edu), and MARS (https://mars.lco.global) brokers and our SGLF ZTF database and filters.

Photometry

Discovery (first detection):
Discovery date: 2021-03-17 07:48:32.000
Flux: 19.938 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2021-03-05 10:20:26
Limiting flux: 20.258 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2021hcj