Discovery certificate for object 2018qb
TNS Astronomical Transient Report No. 16807 [ 2018TNSTR.183....1R ]

Date Received (UTC): 2018-02-09 04:28:09
Sender: Dr. Gautham Narayan
Source Group: None

A. Rest (STScI), A. Zenteno(NOAO/CTIO), Giovanni Strampelli (STScI), B. E. Tucker (Mt Stromlo Observatory, ANU), P. M. Garnavich (Notre Dame), S. Margheim (Gemini Observatory), D. Kasen (UCB/LBL), R. Olling, E. Shaya (U Maryland), G. Narayan (STScI), A. Villar (CfA), F. Forster (U. de Chile), R. Mushotzky (UMD), R. Chris Smith (NOAO/CTIO) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018qb
Discoverer internal name: C16-0060
Coordinates (J2000): RA = 08:56:50.976 (134.2124) DEC = +21:07:38.51 (21.127364)
Discovery date: 2018-01-24 17:18:44 (JD=2458143.22135)

Potential host galaxy: SDSS J085650.97+210738.4
Host redshift: 0.082

Remarks: Associated with K2 object 212051579 separation: 0.14 arcsec. Candidate is nuclear but no previous imaging indicates AGN. Forced photometry detections recovered on 20180123-24 after initial detection.

Photometry

Discovery (first detection):
Discovery date: 2018-01-24 17:18:44
Flux: 18.23 ABMag
Filter: i-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Last non-detection:
Archival info: Other
Remarks: Not detected in PS1 imaging on 20180121 or in archival SDSS imaging.

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018qb