Discovery certificate for object 2018xa
TNS Astronomical Transient Report No. 17013 [ 2018TNSTR.245....1D ]

Date Received (UTC): 2018-02-19 09:27:13
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 2018xa
Discoverer internal name: Gaia18alo
Coordinates (J2000): RA = 18:23:48.490 (275.952042) DEC = -22:26:25.01 (-22.440281)
Discovery date: 2018-02-10 08:23:59 (JD=2458159.8499884)


Remarks: Gaia source brightens by more than 1 mag

Photometry

Discovery (first detection):
Discovery date: 2018-02-10 08:23:59
Flux: 17.99 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-11-02 18:51:50
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/2018xa