Mercury Orbit Insertion, Events and Discussion leading up to MOI |
Mercury Orbit Insertion, Events and Discussion leading up to MOI |
Nov 25 2009, 05:30 AM
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Senior Member Group: Members Posts: 1018 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590 |
Excerpts from a new press release from the Messenger Team:
QUOTE Deep-Space Maneuver Positions MESSENGER for Mercury Orbit Insertion The Mercury-bound MESSENGER spacecraft completed its fifth and final deep-space maneuver of the mission today, providing the expected velocity change needed to place the spacecraft on course to enter into orbit about Mercury in March 2011. . . . today's maneuver began at 4:45 p.m. EST. Mission controllers at The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., verified the start of the maneuver about 12 minutes, 49 seconds later, when the first signals indicating spacecraft thruster activity reached NASA's Deep Space Network tracking station outside Goldstone, Calif. "The team was well-prepared for the maneuver," said MESSENGER Mission Systems Engineer Eric Finnegan, of APL. "Initial data analysis indicates an extremely accurate maneuver execution. After sifting through all the post-burn data I expect we will find ourselves right on target." --Greg |
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Feb 22 2011, 04:33 PM
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Senior Member Group: Members Posts: 1598 Joined: 14-October 05 From: Vermont Member No.: 530 |
Come on, Juno, you're late.
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Feb 23 2011, 09:16 PM
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#3
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Member Group: Members Posts: 163 Joined: 16-March 05 From: Oakville, Ontario, Canada Member No.: 201 |
Been trying to find what the Delta-V is for the burn? Going to be neat to see the burn in "real time" watching the progress of the burn for a change.
jb |
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Feb 23 2011, 11:07 PM
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#4
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Junior Member Group: Members Posts: 51 Joined: 31-December 10 From: Earth Member No.: 5589 |
Been trying to find what the Delta-V is for the burn? Going to be neat to see the burn in "real time" watching the progress of the burn for a change. jb According to this website: http://messenger.jhuapl.edu/orbit_insertio...tionkeeping.htm, "MESSENGER's thrusters must slow the spacecraft by just over 0.86 kilometers (0.53 miles) per second." |
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