Discovery certificate for object 2019zay
TNS Astronomical Transient Report No. 56839 [ 2019TNSTR2725....1F ]

Date Received (UTC): 2019-12-29 16:21:31
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 2019zay
Discoverer internal name: ZTF19adcftlk
Coordinates (J2000): RA = 13:57:15.722 (209.3155087) DEC = +20:16:48.37 (20.2801032)
Discovery date: 2019-12-29 13:11:04.000 (JD=2458847.0493519)

Potential host galaxy: SDSS J135715.76+201649.5
Host redshift: 0.428

Remarks: SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19adcftlk

Photometry

Discovery (first detection):
Discovery date: 2019-12-29 13:11:04.000
Flux: 20.6129 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-12-21 13:12:13
Limiting flux: 18.0334 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://www.wis-tns.org/object/2019zay