 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] G. GOFFNEY         ]    PASS PROGRAM NOTE        ]     36015        ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: AUG. 1987  ]
 ] VER/282-7044       ]      RELEASE NOTE( )        ]                  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] REL 19 AND SUBS               ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )] G3                              ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: TARGET, TRANSITIONS, DISP                        ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: 6.35                                           ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] MM TRANSITIONS WITH TARGETING ACTIVE                                ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] IF A PRO TO MM 303 IS PERFORMED WHILE TARGETING IS ACTIVE,          ]
 ] THE FOLLOWING PARAMETERS WILL BE DISPLAYED ON THE MNVR DISPLAY      ]
 ] (THOUGH THEY SHOULD BE BLANKED DURING THIS COAST MAJOR MODE):       ]
 ] DELTA-VTOT, VGO, TGO.                                               ]
 ]                                                                     ]
 ] INTERPROCESS VARIABLE (IPV) COMPLICATIONS ARISE IF A TRANSITION TO  ]
 ] MM 303 IS PERFORMED WITH TARGETING ACTIVE.                          ]
 ]                                                                     ]
 ] COMPUTATION OF DESIRED ATTITUDE (BURN ATT, R, P, Y) BY MANEUVER     ]
 ] TARGETING AT A LOW PRIORITY MAY BE SLIVERED BY THE MM 303           ]
 ] INITIALIZATION PROCESSING (MFE PRIORITY) WHICH ALSO COMPUTES BURN   ]
 ] ATT'S. AS A RESULT, WHEN MANEUVER TARGETING RESUMES EXECUTION       ]
 ] AFTER COMPLETION OF THE MFE, NON HOMOGENEOUS BURN ATT'S WILL BE     ]
 ] COMPUTED AND THE M50 TO COMMANDED BODY QUATERNION OBTAINED BY MM    ]
 ] 303 INITIALIZATION WILL BE OVERLAID WITH A VALUE PREVIOUSLY         ]
 ] COMPUTED BY MANEUVER TARGETING.                                     ]
 ]                                                                     ]
 ] SO THE RESULT IS THAT, AT COMPLETION OF MANEUVER TARGETING IN       ]
 ] MM 303, DIFFERENT COMPUTERS HAVE DIFFERENT BURN ATT'S AND ALL       ]
 ] COMPUTERS HAVE AN M50 TO COMMANDED BODY QUATERNION BASED ON AN      ]
 ] OLD BURN ATT'S.                                                     ]
 ]                                                                     ]
 ] SOFTWARE IMPACT IS AS FOLLOWS:                                      ]
 ]                                                                     ]
 ] A. THE ATTITUDE DIRECTION INDICATOR (ADI) ERROR NEEDLES ARE DRIVEN  ]
 ]    BASED ON THE OLD M50 TO COMMANDED BODY QUATERNION WITH NO OTHER  ]
 ]    COMPLICATIONS.                                                   ]
 ]                                                                     ]
 ] B. THE BURN ATT ITEMS DISPLAYED BY THE MNVR DISPLAY ARE DIFFERENT   ]
 ]    ON DIFFERENT GPC'S BUT THIS IS NOT EVIDENT UNLESS THERE ARE TWO  ]
 ]    OR MORE CRT'S CONTROLLED BY DIFFERENT COMPUTERS DISPLAYING THE   ]
 ]    MNVR DISPLAY.                                                    ]
 ]_____________________________________________________________________]
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 DR36015
 +_____________________________________________________________________
 ]                       SUPPLEMENTAL SHEET                            ]
 ]_____________________________________________________________________]
 ] AUTHOR:            ]                             ] DR:              ]
 ] G. GOFFNEY         ]    PASS PROGRAM NOTE        ]     36015        ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: AUG. 1987  ]
 ] VER/282-7044       ]      RELEASE NOTE ( )       ]                  ]
 ]____________________]_____________________________]__________________]
 ] TITLE:                                                              ]
 ] MM TRANSITIONS WITH TARGETING ACTIVE                                ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] C. IF THE CREW SELECTS THE AUTO MANEUVER ITEM OF THE MNVR DISPLAY,  ]
 ]    THE ATTITUDE MANEUVER PERFORMED IS DEFINED BY THE OLD M50 TO     ]
 ]    COMMANDED BODY QUATERNION, AND DOES NOT CORRESPOND TO THE BURN   ]
 ]    ATT'S DISPLAYED BY THE MNVR DISPLAY.                             ]
 ]                                                                     ]
 ] D. IF THE CREW RE-ENTERS A COMPONENT OF BURN ATT BUT DOES NOT       ]
 ]    REENTER ALL THE COMPONENTS WHICH ARE DIFFERENT ON DIFFERENT      ]
 ]    COMPUTERS, DIFFERENT VALUES OF THE M50 TO COMMANDED BODY         ]
 ]    QUATERNION WILL BE COMPUTED BY DIFFERENT COMPUTERS, BASED        ]
 ]    ON THE BURN ATT'S, AND A F-T-S IS POSSIBLE; BUT ONLY IF THE      ]
 ]    CREW LATER SELECTS "AUTO MANEUVER" ON THE MNVR DISPLAY.          ]
 ]                                                                     ]
 ] IT IS ALSO POSSIBLE TO HAVE "EXEC" FLASHING, "LOAD" FLASHING, AND   ]
 ] EVALUATED DATA BLANKED SIMULTANEOUSLY ON THE MNVR DISPLAY IN MM     ]
 ] 302. THIS CAN OCCUR IF TARGETING IS ACTIVE ACROSS THE MM 302 TO     ]
 ] MM 301 TRANSITION, FINISHES IN MM 301, FOLLOWED BY A TRANSITION     ]
 ] TO MM 302. IF "EXEC" IS ENTERED, THE BURN WILL BE ENABLED IN        ]
 ] SPITE OF "LOAD" FLASHING AND BLANKED EVALUATED DATA. NOTE: IF A     ]
 ] PEG 4 OR PEG 7 UPLINK IS ATTEMPTED IN THE ABOVE SCENARIO (IN MM     ]
 ] 301-TARGETING ACTIVE OR IN MM 302), THEN UPLINK WILL BE ACCEPTED    ]
 ] (BECAUSE "LOAD" IS FLASHING) AND COULD CAUSE IPV PROBLEMS.          ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]                                                                     ]
 ] AS A GENERAL RULE, DO NOT PERFORM ANY SEQUENCE OF MM TRANSITIONS    ]
 ] WHILE TARGETING IS ACTIVE. EXCEPTIONS ARE (1) ALL OPS TRANSITIONS,  ]
 ] (2) TRANSITION FROM MM 301 TO MM 302 ONLY, AND (3) TRANSITIONS      ]
 ] FROM MM 104 TO 105 AND 105 TO 106 RESPECTIVELY.                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: WYATT COOPER         DATE 9/20/88 ]                             ]
 ]    --------------------      ---------]                             ]
 ]SSD: SAM ANKNEY           DATE 9/20/88 ]                             ]
 ]    --------------------      ---------] JACK G BOYKIN       9/22/88 ]
 ]PF MGR: GEORGE BULL JR    DATE 9/14/88 ]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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