Discovery certificate for object 2020tj
TNS Astronomical Transient Report No. 58564 [ 2020TNSTR..98....1F ]

Date Received (UTC): 2020-01-11 20:05:24
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, G. Pignata, 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, 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 2020tj
Discoverer internal name: ZTF20aaeundp
Coordinates (J2000): RA = 12:07:28.392 (181.8682985) DEC = +09:08:21.18 (9.139217)
Discovery date: 2020-01-11 08:52:06 (JD=2458859.8695139)

Potential host galaxy: SDSS J120728.22+090817.0
Host redshift: 0.239

Remarks: Early SN candidate (r-rise > 0.24+-0.03 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aaeundp

Photometry

Discovery (first detection):
Discovery date: 2020-01-11 08:52:06
Flux: 18.7552 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-01-04 13:06:09
Limiting flux: 20.4266 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/2020tj