Discovery certificate for object 2020ys
TNS Astronomical Transient Report No. 58840 [ 2020TNSTR.149....1N ]

Date Received (UTC): 2020-01-15 10:35:20
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 2020ys
Discoverer internal name: ZTF17aaajllp
Coordinates (J2000): RA = 10:22:15.844 (155.56601645) DEC = -03:59:27.84 (-3.99106735)
Discovery date: 2020-01-15 08:25:16.000 (JD=2458863.8508912)


Remarks: See arXiv:1904.05922 for selection criteria.

Photometry

Discovery (first detection):
Discovery date: 2020-01-15 08:25:16.000
Flux: 17.96 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-01-07 11:01:38
Limiting flux: 20.0284 ABMag
Filter: g-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/2020ys