Discovery certificate for object 2018xd
TNS Astronomical Transient Report No. 17018 [ 2018TNSTR.249....1D ]

Date Received (UTC): 2018-02-20 17:46:31
Sender: Gaia (Gaia_Bot1)
Reporting Group: GaiaAlerts     Discovery Data Source: 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 2018xd
Discoverer internal name: Gaia18alp
Coordinates (J2000): RA = 17:55:19.620 (268.83175) DEC = +54:35:10.64 (54.586289)
Discovery date: 2018-02-13 13:13:26 (JD=2458163.0509954)


Remarks: candidate SN near galaxy SDSS J175519.50+543510.5 GS-TEC predicts SN Ia

Photometry

Discovery (first detection):
Discovery date: 2018-02-13 13:13:26
Flux: 18.73 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2018-01-12 21:21:36
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/2018xd