Discovery certificate for object 2020ldb
TNS Astronomical Transient Report No. 72065 [ 2020TNSTR1564....1F ]

Date Received (UTC): 2020-05-26 20:16:42
Sender: ZTF (ALeRCE)
Reporting Group: ALeRCE     Discovery Data Source: ZTF

F. Forster, F.E. Bauer, L. Galbany, G. Pignata, E. Camacho, J. Silva-Farfan, 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 2020ldb
Discoverer internal name: ZTF20abbvkhe
Coordinates (J2000): RA = 17:34:52.279 (263.71782995) DEC = +14:20:19.64 (14.33878855)
Discovery date: 2020-05-26 08:02:52.996 (JD=2458995.8353356)

Potential host galaxy: WISEA J173452.28+142019.7

Remarks: Early SN candidate (g-rise > 0.23+-0.06 mag/day, r-rise > 0.19+-0.05 mag/day) classified by ALeRCE using the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF20abbvkhe

Photometry

Discovery (first detection):
Discovery date: 2020-05-26 08:02:52.996
Flux: 20.1849 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Remarks: Data provided by ZTF

Last non-detection:
Last non-detection date: 2020-05-23 10:05:19
Limiting flux: 20.6614 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/2020ldb