Discovery certificate for object 2019xdm
TNS Astronomical Transient Report No. 55094 [ 2019TNSTR2656....1N ]

Date Received (UTC): 2019-12-20 03:56:04
Sender: ZTF (ZTF_AMPEL_COMPLETE)
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 2019xdm
Discoverer internal name: ZTF19abgfydm
Coordinates (J2000): RA = 23:52:48.536 (358.2022331) DEC = +41:45:29.51 (41.7581964)
Discovery date: 2019-12-13 04:50:11.000 (JD=2458830.7015162)


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

Photometry

Discovery (first detection):
Discovery date: 2019-12-13 04:50:11.000
Flux: 19.37 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2019-12-11 06:50:36
Limiting flux: 19.5512 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019xdm