Discovery certificate for object 2019koy
TNS Astronomical Transient Report No. 40985 [ 2019TNSTR1161....1N ]

Date Received (UTC): 2019-07-06 11:20:08
Reporting Group: ZTF     Discovery Data Source: ZTF

J. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTF report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019koy
Discoverer internal name: ZTF19abdegpk
Coordinates (J2000): RA = 12:36:38.163 (189.1590134) DEC = +16:28:43.79 (16.4788312)
Discovery date: 2019-07-03 05:29:11.000 (JD=2458667.7285995)

Remarks: Known SDSS and/or MILLIQUAS QSO/AGN. See arXiv:1904.05922 for selection criteria.


Discovery (first detection):
Discovery date: 2019-07-03 05:29:11.000
Flux: 19.45 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-06-27 05:28:25
Limiting flux: 20.3257 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: