Discovery certificate for object 2019zaf
TNS Astronomical Transient Report No. 56820 [ 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 2019zaf
Discoverer internal name: ZTF19adccsjp
Coordinates (J2000): RA = 10:23:52.429 (155.96845475) DEC = +59:05:17.61 (59.08822425)
Discovery date: 2019-12-29 11:25:25.000 (JD=2458846.9759838)

Potential host galaxy: SDSS J102352.51+590517.4
Host redshift: 0.15

Remarks: SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19adccsjp

Photometry

Discovery (first detection):
Discovery date: 2019-12-29 11:25:25.000
Flux: 20.2095 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-12-22 11:39:23
Limiting flux: 16.6719 ABMag
Filter: g-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/2019zaf