Discovery certificate for object 2019xbt
TNS Astronomical Transient Report No. 55027 [ 2019TNSTR2642....1F ]

Date Received (UTC): 2019-12-19 16:00:58
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, G. Pignata, J. Arredondo, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, E. Reyes, I. Reyes, P. Sanchez-Saez, C. Valenzuela, E. Castillo, D. Ruz-Mieres, D. Rodriguez-Mancini, F.E. Bauer, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019xbt
Discoverer internal name: ZTF19adajqef
Coordinates (J2000): RA = 15:16:44.556 (229.1856483) DEC = +44:07:41.54 (44.1282062)
Discovery date: 2019-12-19 12:22:47.000 (JD=2458837.0158218)

Potential host galaxy: WISEA J151644.81+440738.5
Host redshift: 0.124427

Remarks: SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19adajqef

Photometry

Discovery (first detection):
Discovery date: 2019-12-19 12:22:47.000
Flux: 19.4811 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-12-18 11:52:42
Limiting flux: 18.8876 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

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