Discovery certificate for object 2020apr
TNS Astronomical Transient Report No. 59654 [ 2020TNSTR.236....1S ]

Date Received (UTC): 2020-01-23 22:30:15
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

R. Shirley, I. Perez-Fournon, C. Jimenez Angel, F. Poidevin, (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 2020apr
Discoverer internal name: ZTF20aafdfiw
Coordinates (J2000): RA = 01:29:08.328 (22.2847) DEC = +31:54:44.77 (31.912436)
Discovery date: 2020-01-14 02:41:50.000 (JD=2458862.6123843)

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


Discovery (first detection):
Discovery date: 2020-01-14 02:41:50.000
Flux: 20.343 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-13 04:18:39
Limiting flux: 19.718 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: