Discovery certificate for object 2020aaxk
TNS Astronomical Transient Report No. 90719 [ 2020TNSTR3558....1M ]

Date Received (UTC): 2020-11-25 18:23:32
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

A. Munoz-Arancibia, F. Forster, F.E. Bauer, L. Hernandez-Garcia, G. Pignata, L. Galbany, G. Pignata, E. Camacho, J. Silva-Farfan, A. Mourao, 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, 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 2020aaxk
Discoverer internal name: ZTF20acrxavu
Coordinates (J2000): RA = 23:59:24.924 (359.8538518) DEC = +22:34:35.84 (22.57662345)
Discovery date: 2020-11-20 05:19:48.999 (JD=2459173.7220949)

Potential host galaxy: SDSS J235924.95+223434.4
Host redshift: 0.254

Remarks: SN candidate classified using ALeRCE's stamp classifier - see http://arxiv.org/abs/2008.03309 - and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20acrxavu

Photometry

Discovery (first detection):
Discovery date: 2020-11-20 05:19:48.999
Flux: 20.6724 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-11-18 05:54:49
Limiting flux: 20.6172 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/2020aaxk