Discovery certificate for object 2020tkb
TNS Astronomical Transient Report No. 82283 [ 2020TNSTR2821....1A ]

Date Received (UTC): 2020-09-16 01:57:21
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

C. Jimenez Angel, I. Perez-Fournon, F. Poidevin (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (CAB), S. Geier (GRANTECAN & IAC), Y. Shu (IoA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020tkb
Discoverer internal name: ZTF20abyhsge
Coordinates (J2000): RA = 16:54:53.360 (253.722333) DEC = +42:11:51.63 (42.197675)
Discovery date: 2020-08-26 03:22:04.000 (JD=2459087.6403241)

Potential host galaxy: SDSS J165453.47+421152.7
Host redshift: 0.11341

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.noirlab.edu), and MARS (https://mars.lco.global) brokers.

Photometry

Discovery (first detection):
Discovery date: 2020-08-26 03:22:04.000
Flux: 20.115 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-08-18 04:41:38
Limiting flux: 20.618 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://www.wis-tns.org/object/2020tkb