Discovery certificate for object 2020tjw
TNS Astronomical Transient Report No. 82278 [ 2020TNSTR2821....1A ]

Date Received (UTC): 2020-09-16 01:21:06
Sender: Dr. Ismael Perez-Fournon
Reporting Group: SGLF     Discovery Data Source: ZTF

C. Jimenez Angel, I. Perez-Fournon, F. Poidevin (IAC & ULL), R. Shirley (Univ. of Southampton), R. Marques-Chaves (CAB), S. Geier (GRANTECAN & IAC), Y. Shu (IoA), S. Rodney, J. Roberts-Pierel (Univ. of South Carolina), A. Bolton (NSF's NOIRLab), S. Chakrabarti, P. Craig, and B. Alamiri (RIT) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020tjw
Discoverer internal name: ZTF20abxkiqe
Coordinates (J2000): RA = 02:59:57.244 (44.988517) DEC = +04:20:39.94 (4.344428)
Discovery date: 2020-08-23 09:57:00.000 (JD=2459084.9145833)

Remarks: Data were provided by the Zwicky Transient Facility ( and processed through the Lasair (, ALeRCE (, ANTARES (, and MARS ( brokers.


Discovery (first detection):
Discovery date: 2020-08-23 09:57:00.000
Flux: 20.918 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2020-08-21 11:43:28
Limiting flux: 20.442 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Details of the new object can be viewed here: