Discovery certificate for object 2019tbm
TNS Astronomical Transient Report No. 49920 [ 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 2019tbm
Discoverer internal name: ZTF19acgwjsk
Coordinates (J2000): RA = 03:00:30.639 (45.1276623) DEC = -11:24:58.16 (-11.4161557)
Discovery date: 2019-10-22 09:07:25 (JD=2458778.8801505)

Potential host galaxy: MCG -02-08-039
Host redshift: 0.029894

Remarks: Early SN candidate (r-rise > 0.07 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19acgwjsk

Photometry

Discovery (first detection):
Discovery date: 2019-10-22 09:07:25
Flux: 19.0257 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-16 09:02:39
Limiting flux: 18.0331 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/2019tbm