Discovery certificate for object 2020mcj
TNS Astronomical Transient Report No. 73370 [ 2020TNSTR1745....1A ]

Date Received (UTC): 2020-06-10 00:14:05
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

C. Jimenez Angel, I. Perez-Fournon, F. Poidevin, 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 NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020mcj
Discoverer internal name: ZTF20abefcze
Coordinates (J2000): RA = 11:31:37.090 (172.904542) DEC = +59:38:31.43 (59.642064)
Discovery date: 2020-05-29 04:49:46.000 (JD=2458998.7012269)

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


Discovery (first detection):
Discovery date: 2020-05-29 04:49:46.000
Flux: 20.831 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-05-26 05:47:00
Limiting flux: 20.493 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: