Definitions for "Ancillary Data"
Other data relevant to the time range of interest, such as operator logs, monitor data, open work orders and real-time system SPRs, slowly changing instrumental parameters (eg VLA baselines and pointing model parameters), ionosphere data extracted from the GPS network, etc.
In remote sensing, secondary data pertaining to the area or classes of interest, such as topographical, demographic, or climatological data. Ancillary data may be digitised and used in the analysis process in conjunction with the primary remote sensing data.
Data from other sources than remote sensing that can be used to aid in the classification.