Discovery certificate for object 2018col
TNS Astronomical Transient Report No. 19456 [ 2018TNSTR.832....1F ]

Date Received (UTC): 2018-06-16 04:12:04
Sender: ZTF (ZTF_Bot1)
Source Group: ZTF

C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018col
Discoverer internal name: ZTF18aaxljrh
Coordinates (J2000): RA = 17:01:19.813 (255.332556) DEC = +74:55:29.75 (74.9249318)
Discovery date: 2018-05-31 09:21:36 (JD=2458269.89)



Photometry

Discovery (first detection):
Discovery date: 2018-05-31 09:21:36
Flux: 17.53 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin

Last non-detection:
Last non-detection date: 2018-05-28 08:18:14
Limiting flux: 19.82 ABMag
Filter: r-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2018col