Discovery certificate for object 2019zzi
TNS Astronomical Transient Report No. 59382 [ 2020TNSTR.211....1S ]

Date Received (UTC): 2020-01-21 09:14:04
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 2019zzi
Discoverer internal name: ZTF19actjtuf
Coordinates (J2000): RA = 04:43:19.235 (70.830146) DEC = +20:26:19.96 (20.438878)
Discovery date: 2019-11-17 08:53:39.000 (JD=2458804.8705903)

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


Discovery (first detection):
Discovery date: 2019-11-17 08:53:39.000
Flux: 19.896 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-11-16 12:46:29
Limiting flux: 18.906 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: