Discovery certificate for object 2021fbg
TNS Astronomical Transient Report No. 101738 [ 2021TNSTR.724....1A ]

Date Received (UTC): 2021-03-08 11:40:58
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 (Univ. of Geneva), S. Geier (GRANTECAN & IAC), Y. Shu (MPA), 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 2021fbg
Discoverer internal name: ZTF21aaostqr
Coordinates (J2000): RA = 10:03:33.198 (150.888325) DEC = +25:52:00.47 (25.866797)
Discovery date: 2021-03-05 06:17:38.000 (JD=2459278.7622454)


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 and our SGLF ZTF database and filters.

Photometry

Discovery (first detection):
Discovery date: 2021-03-05 06:17:38.000
Flux: 20.471 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2021-03-02 07:46:30
Limiting flux: 19.735 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/2021fbg