Discovery certificate for object 2020btw
TNS Astronomical Transient Report No. 61026 [ 2020TNSTR.374....1P ]

Date Received (UTC): 2020-02-03 20:06:49
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 2020btw
Discoverer internal name: ZTF20aagzqml
Coordinates (J2000): RA = 02:31:26.834 (37.861808) DEC = -12:14:09.78 (-12.23605)
Discovery date: 2020-01-24 02:38:45.000 (JD=2458872.6102431)

Potential host galaxy: LEDA 955779
Host redshift: 0.072567

Remarks: Data were provided by the Zwicky Transient Facility (https://www.ztf.caltech.edu) and processed through the Lasair (https://lasair.roe.ac.uk), ALeRCE (https://alerce.online), ANTARES (https://antares.noao.edu), and MARS (https://mars.lco.global) brokers.

Photometry

Discovery (first detection):
Discovery date: 2020-01-24 02:38:45.000
Flux: 19.819 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-14 04:46:07
Limiting flux: 19.938 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2020btw