Discovery certificate for object 2019tbt
TNS Astronomical Transient Report No. 49929 [ 2019TNSTR2154....1F ]

Date Received (UTC): 2019-10-23 09:20:55
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, 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 2019tbt
Discoverer internal name: ZTF19achamsv
Coordinates (J2000): RA = 10:10:01.788 (152.5074519) DEC = +00:58:38.94 (0.9774842)
Discovery date: 2019-10-22 12:34:13 (JD=2458779.0237616)

Potential host galaxy: WISEA J101001.95+005841.2
Host redshift: 0.0668

Remarks: SN candidate classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19achamsv

Photometry

Discovery (first detection):
Discovery date: 2019-10-22 12:34:13
Flux: 19.2647 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-22 11:56:15
Limiting flux: 18.9184 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/2019tbt