Discovery certificate for object 2019tyu
TNS Astronomical Transient Report No. 51446 [ 2019TNSTR2245....1F ]

Date Received (UTC): 2019-11-02 16:46:06
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, 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 2019tyu
Discoverer internal name: ZTF19acmgyis
Coordinates (J2000): RA = 02:56:23.221 (44.0967537) DEC = +44:30:04.56 (44.5012674)
Discovery date: 2019-11-02 06:42:31 (JD=2458789.7795255)

Potential host galaxy: SDSS J025622.83+442956.9
Host redshift: 0.088

Remarks: Early SN candidate (r-rise > 0.31+-0.07 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acmgyis

Photometry

Discovery (first detection):
Discovery date: 2019-11-02 06:42:31
Flux: 19.5821 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-31 06:34:45
Limiting flux: 20.2002 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/2019tyu