Discovery certificate for object 2019tkb
TNS Astronomical Transient Report No. 50840 [ 2019TNSTR2185....1F ]

Date Received (UTC): 2019-10-26 16:20:46
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, 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, G. Pignata, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.

IAU Designation: SN 2019tkb
Discoverer internal name: ZTF19acihlft
Coordinates (J2000): RA = 21:43:53.439 (325.97266105) DEC = -10:11:02.22 (-10.18395075)
Discovery date: 2019-10-26 04:21:31.000 (JD=2458782.6816088)

Potential host galaxy: WISEA J214353.42-101101.1

Remarks: Early SN candidate (g-rise > 0.17+-0.03 mag/day, r-rise > 0.24+-0.05 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acihlft

Photometry

Discovery (first detection):
Discovery date: 2019-10-26 04:21:31.000
Flux: 19.1556 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-23 05:16:10
Limiting flux: 19.8651 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/2019tkb