Discovery certificate for object 2017isa
TNS Astronomical Transient Report No. 15169 [ 2017TNSTR1359....1D ]

Date Received (UTC): 2017-12-02 11:47:38
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 2017isa
Discoverer internal name: Gaia17ddb
Coordinates (J2000): RA = 13:59:01.010 (209.754208) DEC = +15:31:21.54 (15.52265)
Discovery date: 2017-11-30 14:49:55 (JD=2458088.1179977)


Remarks: candidate SN near galaxy SDSS J135901.07+153121.5, GS-TEC predicts SN Ia

Photometry

Discovery (first detection):
Discovery date: 2017-11-30 14:49:55
Flux: 17.75 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-11-30 10:35:02
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/2017isa