Discovery certificate for object 2018gtk
TNS Astronomical Transient Report No. 23041 [ 2018TNSTR1434....1D ]

Date Received (UTC): 2018-09-23 22:03:05
Sender: Gaia (Gaia_Bot1)
Source Group: GaiaAlerts

A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018gtk
Discoverer internal name: Gaia18csp
Coordinates (J2000): RA = 13:12:26.520 (198.1105) DEC = -56:12:01.80 (-56.2005)
Discovery date: 2018-09-21 02:05:16 (JD=2458382.5869907)


Remarks: apparently hostless transient at low Galactic latitude

Photometry

Discovery (first detection):
Discovery date: 2018-09-21 02:05:16
Flux: 17.99 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-09-02 21:50:24
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


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