Discovery certificate for object 2019tdu
TNS Astronomical Transient Report No. 50019 [ 2019TNSTR2154....1F ]

Date Received (UTC): 2019-10-23 16:03:53
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 2019tdu
Discoverer internal name: ZTF19achtfio
Coordinates (J2000): RA = 08:02:29.296 (120.6220653) DEC = +41:38:53.49 (41.648193)
Discovery date: 2019-10-23 12:07:25.000 (JD=2458780.0051505)

Potential host galaxy: WISEA J080229.25+413853.4
Host redshift: 0.132539

Remarks: Early SN candidate (g-rise > 0.04 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF19achtfio

Photometry

Discovery (first detection):
Discovery date: 2019-10-23 12:07:25.000
Flux: 19.888 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2019-10-20 12:52:51
Limiting flux: 19.5363 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://www.wis-tns.org/object/2019tdu