Victoria ahead..., Time spent at Emma Dean |
Victoria ahead..., Time spent at Emma Dean |
Sep 5 2006, 07:13 AM
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Might I humbly suggest this new thread, as Victoria looms large before us..?
GREAT images guys. I was out last night and have only just got online, to find Victoria opening up ahead of us... what a fantastic time! -------------------- |
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Sep 8 2006, 07:10 PM
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#2
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Member Group: Members Posts: 578 Joined: 5-November 04 From: Denmark Member No.: 107 |
What is the DSN issue?
-------------------- "I want to make as many people as possible feel like they are part of this adventure. We are going to give everybody a sense of what exploring the surface of another world is really like"
- Steven Squyres |
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Sep 8 2006, 09:09 PM
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#3
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Senior Member Group: Members Posts: 1636 Joined: 9-May 05 From: Lima, Peru Member No.: 385 |
What is the DSN issue? The Deep Space Network (DSN) communicates with nearly all spacecraft flying throughout our solar system. About 28 spacecraft are cruising in space, observing Jupiter, the sun, asteroids, and comets, and even more spacecraft are traveling to Saturn and the outer reaches of our solar system. The DSN antennas are extremely busy trying to track all of these space missions at once. The Mars Exploration Rover spacecraft must therefore share time on the DSN antennas. A sophisticated scheduling system with a team of hundreds of negotiators around the world ensures that each missionīs priorities are met. The roversī downlink sessions (when the rovers send information back to Earth) will generally be limited to a couple of hours at a stretch, with perhaps two downlink sessions per Martian day (sol) per rover. MSPA allows only one spacecraft at a time to have the uplink, and it is expected that the rovers will command early in each sol (Martian day) for roughly an hour each to provide the instructions for that sol's activities. You can find much more information at http://deepspace.jpl.nasa.gov/dsn/features/index.html Rodolfo |
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