Discovery certificate for object 2019zwi
TNS Astronomical Transient Report No. 58474 [ 2020TNSTR..94....1A ]

Date Received (UTC): 2020-01-10 22:40:18
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 2019zwi
Discoverer internal name: ZTF19adceifk
Coordinates (J2000): RA = 08:32:28.230 (128.117625) DEC = +52:39:30.85 (52.658569)
Discovery date: 2019-12-29 11:26:50.000 (JD=2458846.9769676)

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


Discovery (first detection):
Discovery date: 2019-12-29 11:26:50.000
Flux: 20.566 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-12-22 11:53:53
Limiting flux: 16.821 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: