Astrometry.net index files for astrometry on UVIT images

The zip file contains the Astrometry.net index files used by the Ultraviolet Imaging Telescope Payload Operation Centre (UVIT POC) for performing astrometry on UVIT images. It includes the 5200, 6000, and 6100 series index files distributed by the Astrometry.net software team (available at http://data.astrometry.net/). Additionally, it contains the index files generated by Akanksha et al. (in preparation). Please note that the UVIT POC currently does not use the 6000 and 6100 series index files, but these files may still be useful for some UVIT fields.