Discovery certificate for object 2020ckk
TNS Astronomical Transient Report No. 61730 [ 2020TNSTR.466....1B ]

Date Received (UTC): 2020-02-13 20:32:19
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F.E. Bauer, G. Pignata, F. Forster, 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 2020ckk
Discoverer internal name: ZTF20aamulau
Coordinates (J2000): RA = 23:49:58.971 (357.4957109) DEC = +31:07:22.63 (31.1229539)
Discovery date: 2020-02-13 03:13:53.000 (JD=2458892.6346412)

Potential host galaxy: SDSS J234959.06+310712.2
Host redshift: 0.043

Remarks: Early SN candidate (g-rise > 0.17+-0.01 mag/day, r-rise > 0.15+-0.01 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20aamulau

Photometry

Discovery (first detection):
Discovery date: 2020-02-13 03:13:53.000
Flux: 18.1451 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-02-06 03:18:48
Limiting flux: 18.7232 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://www.wis-tns.org/object/2020ckk