Discovery certificate for object 2018qa
TNS Astronomical Transient Report No. 16806 [ 2018TNSTR.183....1R ]

Date Received (UTC): 2018-02-09 04:21:44
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 2018qa
Discoverer internal name: C16-0062
Coordinates (J2000): RA = 09:19:48.326 (139.951358) DEC = +14:27:07.41 (14.452058)
Discovery date: 2018-01-25 18:11:16 (JD=2458144.25783)

Potential host galaxy: SDSS J091948.32+142705.7
Host redshift: 0.085

Remarks: K2 object 251280226 separation: 4.11 arcsec. Forced photometry detections after discovery on 20180123-25. Visual inspection to confirm separation from nuclei of two possible hosts.

Photometry

Discovery (first detection):
Discovery date: 2018-01-25 18:11:16
Flux: 20.39 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/2018qa