Theia (VIS Filter Checking Tool)
UVIT VIS Filter Check
This tool is intended to check the appropriate filter for use with the VIS channel of UVIT.
Please choose the primary instrument and provide the RA and DEC of the source in sexagesimal units.
We suggest to use only one VIS filter for continuity of tracking.
For eg.: 12:12:12 (hms)
For eg.: -20:10:14 (dms)