Discovery certificate for object 2020cir
TNS Astronomical Transient Report No. 61656 [ 2020TNSTR.475....1P ]

Date Received (UTC): 2020-02-13 02:29:07
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

I. Perez-Fournon, C. Jimenez Angel, 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 2020cir
Discoverer internal name: ZTF20aalxwzl
Coordinates (J2000): RA = 09:25:51.401 (141.464171) DEC = +30:01:55.81 (30.032169)
Discovery date: 2020-02-01 10:12:28.000 (JD=2458880.9253241)

Potential host galaxy: SDSS J092551.51+300154.5
Host redshift: 0.123687

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


Discovery (first detection):
Discovery date: 2020-02-01 10:12:28.000
Flux: 20.398 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-02-01 07:21:06
Limiting flux: 20.218 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: