Editing Lunar Reconnaissance Orbiter part 2
Jump to navigation
Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 10: | Line 10: | ||
Click '''Nxt''' 4 times so that ''Delta Velocity'' is highlighted, and click '''Set'''. | Click '''Nxt''' 4 times so that ''Delta Velocity'' is highlighted, and click '''Set'''. | ||
Click '''TGT''', and enter '''Moon'''. | Click '''TGT''', and enter '''Moon'''. | ||
− | Click '''Nxt''' | + | Click '''Nxt''' 5 times so that ''dVf'' is highlighted, click '''Set''', and enter '''0'''. |
− | |||
− | |||
In the right MFD click '''PG''', then '''Plan'''. | In the right MFD click '''PG''', then '''Plan'''. | ||
In the left MFD, adjust '''dVf''', and '''dVp''' so that ''EqI'' and ''PeA'' in the right MFD | In the left MFD, adjust '''dVf''', and '''dVp''' so that ''EqI'' and ''PeA'' in the right MFD | ||
Line 18: | Line 16: | ||
Be as accurate as possible here. LRO is planning on avoiding a mid-course correction if possible. In orbiter, we will probably still have to do a small | Be as accurate as possible here. LRO is planning on avoiding a mid-course correction if possible. In orbiter, we will probably still have to do a small | ||
MCC. | MCC. | ||
− | When your adjustments are done, click | + | When your adjustments are done, click '''PG''', '''BV''', and '''AB'''. |
− | |||
When the burn is done, click '''BV''', and '''PG'''. In the Right MFD, click '''Plan''' to turn off plan mode. | When the burn is done, click '''BV''', and '''PG'''. In the Right MFD, click '''Plan''' to turn off plan mode. | ||
Line 28: | Line 25: | ||
In the right MFD, click '''Plan''' so that the green line turns blue. | In the right MFD, click '''Plan''' so that the green line turns blue. | ||
In the left MFD adjust '''dVp''' and '''dVf''' so that ''EqI'' and ''PeA'' in the left MFD are as close as possible | In the left MFD adjust '''dVp''' and '''dVf''' so that ''EqI'' and ''PeA'' in the left MFD are as close as possible | ||
− | to 90 degrees and | + | to 90 degrees and 216k respectively |
When these adjustments are finished, click '''PG''','''BV''', then '''AB''' in the right MFD. | When these adjustments are finished, click '''PG''','''BV''', then '''AB''' in the right MFD. | ||
When the burn completes, click '''Plan''' in the left MFD so the blue line returns to green. | When the burn completes, click '''Plan''' in the left MFD so the blue line returns to green. | ||
Line 75: | Line 72: | ||
Continue these adjustments until both parameters are as close as possible. | Continue these adjustments until both parameters are as close as possible. | ||
In the Left MFD, click '''PG''', '''BV''', and '''AB'''. | In the Left MFD, click '''PG''', '''BV''', and '''AB'''. | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
When the burn is finished, LRO then completes 4 orbits at 3160km x 216km before the next burn. | When the burn is finished, LRO then completes 4 orbits at 3160km x 216km before the next burn. | ||
you can switch focus to AV020Centaur and enjoy the view as it passes by the moon. | you can switch focus to AV020Centaur and enjoy the view as it passes by the moon. | ||
Line 173: | Line 139: | ||
=== LRO Orbit Circularization === | === LRO Orbit Circularization === | ||
60 days after your last LRO orbit insertion burn, | 60 days after your last LRO orbit insertion burn, | ||
− | switch focus to LRO, and at Perilune over the south pole, burn retrograde until the ApA is | + | switch focus to LRO, and at Perilune over the south pole, burn retrograde until the ApA is 50km. |
− | === LCROSS Lunar pole | + | === LCROSS Lunar pole targetinjg === |
Switch focus back to AV020Centaur. When the PeT is 130k Set IMFD map in the left MFD and IMFD Base approach in the right MFD. | Switch focus back to AV020Centaur. When the PeT is 130k Set IMFD map in the left MFD and IMFD Base approach in the right MFD. | ||
In the left MFD set target Moon and center to Self ('''x''') | In the left MFD set target Moon and center to Self ('''x''') | ||
Click on '''Sel''' until ''Ref Moon'' is displayed with a negative PeA. | Click on '''Sel''' until ''Ref Moon'' is displayed with a negative PeA. | ||
In the right MFD click '''REF''', and type '''Moon'''. | In the right MFD click '''REF''', and type '''Moon'''. | ||
− | Click '''Nxt''' until ''Hint'' is highlighted. Click '''Set''' and type the value shown for '' | + | Click '''Nxt''' until ''Hint'' is highlighted. Click '''Set''' and type the value shown for ''PeA'' in the left MFD. |
Click '''Prv''' until ''Lat'' is highlighted. Click '''Set''' and type '''89.9''' | Click '''Prv''' until ''Lat'' is highlighted. Click '''Set''' and type '''89.9''' | ||
Click '''Nxt''', then '''Set''' and set the ''Alt'' to '''0'''. | Click '''Nxt''', then '''Set''' and set the ''Alt'' to '''0'''. | ||
− | Click '''Nxt''', then '''Set''' and set the ''ReA'' (Re-enty Angle) to ''' | + | Click '''Nxt''', then '''Set''' and set the ''ReA'' (Re-enty Angle) to '''75''' |
Click '''Nxt''', then '''Set''' and set the ''Ant'' parameter to '''0''' | Click '''Nxt''', then '''Set''' and set the ''Ant'' parameter to '''0''' | ||
You may need to reset the ''Hint'' Parameter at this time to the current PeT. | You may need to reset the ''Hint'' Parameter at this time to the current PeT. | ||
Line 193: | Line 159: | ||
=== LCROSS LRO targeting === | === LCROSS LRO targeting === | ||
+ | * ~7 hours prior to impact, LCROSS will separate from Centaur upper stage and perform a ~4-minute delay maneuver (~23 m/s) to enable LCROSS to fly through Centaur impact plume | ||
In the left MFD, click '''REF''' and type '''Moon''', then click '''TGT''' and type '''LRO''' | In the left MFD, click '''REF''' and type '''Moon''', then click '''TGT''' and type '''LRO''' | ||
Click '''PRJ''' until ''Target'' is displayed in the lower left corner. | Click '''PRJ''' until ''Target'' is displayed in the lower left corner. | ||
Line 217: | Line 184: | ||
=== LCROSS Separation === | === LCROSS Separation === | ||
− | |||
Wait until Pet in the Left MFD is 25k. | Wait until Pet in the Left MFD is 25k. | ||
In the right MFD, minimize ''dV'' by adjusting ''ReA'', and make the burn. | In the right MFD, minimize ''dV'' by adjusting ''ReA'', and make the burn. | ||
Line 264: | Line 230: | ||
[http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080038058_2008037121.pdf LRO Navigation Overview] | [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080038058_2008037121.pdf LRO Navigation Overview] | ||
− | == | + | == TODO == |
− | * | + | *Fix procedure for actual mission parameters |
− | *LRO | + | *LRO autoburn LOI burns |
− | * | + | *** Target a specific crater |
− | * | + | ** Try IMFD slingshot mode to refine flyby once in lunar SOI |
− | * | + | * Convert to .CHM for help mode within orbiter |
− | + | * Add images | |
− | * | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− |