Discovery certificate for object 2019tsm
TNS Astronomical Transient Report No. 51180 [ 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 2019tsm
Discoverer internal name: ZTF19ackkfxh
Coordinates (J2000): RA = 00:41:20.202 (10.3341765) DEC = +16:16:00.51 (16.2668078)
Discovery date: 2019-10-30 03:18:54 (JD=2458786.638125)

Potential host galaxy: SDSS J004120.09+161603.2
Host redshift: 0.158

Remarks: Early SN candidate (r-rise > 0.82+-0.14 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19ackkfxh

Photometry

Discovery (first detection):
Discovery date: 2019-10-30 03:18:54
Flux: 19.4151 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 03:49:24
Limiting flux: 20.4345 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/2019tsm