Discovery certificate for object 2019xdn
TNS Astronomical Transient Report No. 55102 [ 2019TNSTR2656....1N ]

Date Received (UTC): 2019-12-20 03:56:06
Sender: ZTF (ZTF_AMPEL_NEW)
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 2019xdn
Discoverer internal name: ZTF19adakvxy
Coordinates (J2000): RA = 21:42:08.773 (325.5365549) DEC = -07:20:17.25 (-7.3381257)
Discovery date: 2019-12-20 02:08:38.000 (JD=2458837.5893287)


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

Photometry

Discovery (first detection):
Discovery date: 2019-12-20 02:08:38.000
Flux: 18.98 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-11-25 02:09:33
Limiting flux: 19.8496 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/2019xdn