In the FITS headers and configuration files of the VISTA InfraRed CAMera (VIRCAM), AOSA1 specifies the unique ID for a guide star (AO star A) used by the telescope's adaptive optics system.
A specific data package that allows SADT to point to and analyze VIRCAM-specific star IDs like AOSA1 . Other Technical Identifiers Download Aosa1 zip
To "download Aosa1" in the context of telescope observation planning, you would actually need the SADT software and its instrument-specific packages: In the FITS headers and configuration files of