Real science: Why is Chandrayaan-1 trajectory so complex?
Related: More recent Chandrayaan updates are available.
US manned launches took 4 days to reach moon; some Soviet launches took two. Why are we taking a fortnight?
While I haven't seen any official explanation from ISRO nor an analysis of Chandrayaan-1 trajectory elsewhere, my speculation is: answer might be a trade between cost & travel time. They are probably trying to get a gravity boost from earth rather than burning fuel - hence lower weight, hence lower cost. Someone better qualified at making sense of trajectory might offer a saner comment.
More (& wild) speculation - safety. By always staying in earth orbit or moon orbit - even a highly elliptical one - could you increase chances of recapturing the ship even if something went wrong during the moon-capture maneuver?
What next?
- All Chandrayaan posts.
- All moon posts, including fiction set on moon. A-rated stories probably won't disappoint. For free fiction, search for "full text" (without quotes). Or browse through all free fiction posts, including stories unrelated to moon.
- Subscribe to Variety SF master feed, Chandrayaan feed, or moon posts feed.
2 comments:
This may answer your question:
http://www.hindu.com/seta/2008/10/30/stories/2008103050121400.htm
Regards,
Dennis McDonald
Alexandria, Virginia USA
http://www.ddmcd.com
Thanks Dennis. That was very helpful.
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