Steve wrote El set age says 74 days old. What does that mean if I may ask? That means 74 days have passed since the orbit was computed. The epoch is a time given for when the orbital elements are valid for. As time pass by, the values which make up the orbital elements such as inclination chance to a different value, then what they they were computed to be at the epoch of the elements. Kevin _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
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