Discovery certificate for object 2019zws
TNS Astronomical Transient Report No. 58488 [ 2020TNSTR.103....1A ]

Date Received (UTC): 2020-01-11 01:12:57
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 OIR Lab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019zws
Discoverer internal name: ZTF19actsuzv
Coordinates (J2000): RA = 23:02:41.924 (345.674683) DEC = +08:14:07.58 (8.235439)
Discovery date: 2019-11-09 04:04:19.000 (JD=2458796.6696644)

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


Discovery (first detection):
Discovery date: 2019-11-09 04:04:19.000
Flux: 19.44 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-11-09 02:34:18
Limiting flux: 19.114 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: