Discovery certificate for object 2018ayd
TNS Astronomical Transient Report No. 17896 [ 2018TNSTR.521....1R ]

Date Received (UTC): 2018-04-21 18:55:43
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 2018ayd
Discoverer internal name: C17-0085/C1700-57
Coordinates (J2000): RA = 13:51:43.261 (207.930254) DEC = -09:23:28.18 (-9.391161)
Discovery date: 2018-04-06 14:57:08 (JD=2458215.12302)

Potential host galaxy: 2MASX J13514323-0923278

Remarks: Associated with K2 object 212652413, separation = 0.90". Likely nuclear SN near pre-maximum.

Photometry

Discovery (first detection):
Discovery date: 2018-04-06 14:57:08
Flux: 19.794 ABMag
Filter: g-Sloan
Instrument: DECAM
Telescope: CTIO - 4-m Victor M. Blanco Telescope

Last non-detection:
Archival info: Other
Remarks: Not detected in DECam imaging on 20180311, or in archival PS1 imaging.

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