Discovery certificate for object 2019tsn
TNS Astronomical Transient Report No. 51181 [ 2019TNSTR2223....1F ]

Date Received (UTC): 2019-10-30 20:25:03
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 2019tsn
Discoverer internal name: ZTF19ackkgau
Coordinates (J2000): RA = 00:10:14.478 (2.5603267) DEC = +56:57:19.17 (56.955326)
Discovery date: 2019-10-30 03:15:26 (JD=2458786.6357176)

Potential host galaxy: WISEA J001014.14+565716.2

Remarks: Early SN candidate (r-rise > 0.38+-0.21 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19ackkgau

Photometry

Discovery (first detection):
Discovery date: 2019-10-30 03:15:26
Flux: 20.0416 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-29 04:19:18
Limiting flux: 20.6759 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/2019tsn