Discovery certificate for object 2020ctj
TNS Astronomical Transient Report No. 62065 [ 2020TNSTR.528....1M ]

Date Received (UTC): 2020-02-17 03:53:50
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

R. Marques-Chaves (CAB), I. Perez-Fournon, C. Jimenez Angel, F. Poidevin, R. Shirley (IAC & ULL), 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 2020ctj
Discoverer internal name: ZTF20aampugt
Coordinates (J2000): RA = 08:07:00.945 (121.753938) DEC = +08:02:07.44 (8.0354)
Discovery date: 2020-02-12 04:05:00.000 (JD=2458891.6701389)

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 04:05:00.000
Flux: 20.141 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-02-12 03:14:36
Limiting flux: 20.157 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: