This directory includes documents containing email messages from the DDS team pertaining to the derivation of physical quantities from the DDS instrumental data. b072295.asc - A source document containing information on the derivation of velocity from instrumental data from the DDS instruments on board the Galileo and Ulysses spacecraft, adding to the information published in the Planetary and Space Science Review source documents. It also explains why some charge amplitude values are considered invalid or unreliable. b072295c.asc - A document containing typos and other corrections to the email message included in b072295.asc. b030696.asc - A source document containing information on the derivation of velocity, velocity error factor, and mass error factor from the DDS instruments on board the Galileo and Ulysses spacecraft, adding to and correcting information published in the Planetary and Space Science Review source documents. b030696c.asc - A document enumerating typos and other corections to the email message included in b030696.asc. ============================================================================ Carol Neese, August 1996. Mark Sykes, July 1997.