Discovery certificate for object 2020coj
TNS Astronomical Transient Report No. 61867 [ 2020TNSTR.506....1P ]

Date Received (UTC): 2020-02-15 02:57:31
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

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

IAU Designation: AT 2020coj
Discoverer internal name: ZTF20aangtdl
Coordinates (J2000): RA = 11:48:34.195 (177.142479) DEC = +57:50:48.69 (57.846858)
Discovery date: 2020-02-12 11:45:18.000 (JD=2458891.9897917)

Remarks: Data were provided by the Zwicky Transient Facility ( and processed through the Lasair (, ALeRCE (, ANTARES (, and MARS ( brokers.


Discovery (first detection):
Discovery date: 2020-02-12 11:45:18.000
Flux: 20.269 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-02-12 10:40:02
Limiting flux: 19.73 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: