Discovery certificate for object 2019tbh
TNS Astronomical Transient Report No. 49915 [ 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 2019tbh
Discoverer internal name: ZTF19acgqsqa
Coordinates (J2000): RA = 19:10:42.354 (287.676477) DEC = +78:25:17.49 (78.4215258)
Discovery date: 2019-10-22 04:05:51 (JD=2458778.6707292)

Potential host galaxy: SDSS J191042.55+782523.4
Host redshift: 0.144

Remarks: Early SN candidate (g-rise > 0.01 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acgqsqa

Photometry

Discovery (first detection):
Discovery date: 2019-10-22 04:05:51
Flux: 20.1397 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-21 04:05:33
Limiting flux: 20.0513 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/2019tbh