News and preprints of articles are also welcomed at the same address. Please give us your opinions and confirm that you wish to continue to receive ATI's Free Monthly Space Digest. The spread-sheet includes 3 worksheets, one sheet for communication link budgets, the second calculates the ground station figure of merit, the third calculates orbital parameters given apogee and perigee altitudes.
Theses are useful calculations for space and communications design.
Only four hours before the Io flyby, while being bombarded by strong radiation, its onboard computers reset, shutting down the instruments. Galileo engineers at JPL sprang into action, scrambling to send new commands to save the flyby. This enabled the spacecraft to complete more than half of its planned observations of Io and all the planned observations of another Jovian moon, Europa. Message travel time was 35 minutes due to the distance. The data will be transmitted to Earth over the next several weeks.