 +_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ] J. ZOPHY           ]    PASS PROGRAM NOTE        ]    50776         ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: AUG. 1987  ]
 ] ENG/282-8409       ]      RELEASE NOTE( )        ]                  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI02 AND SUBS                 ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )] G1, G3                          ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: DAP, RCS                                         ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS:  4.201                                         ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ] TRANS-DAP STATE AFTER CANCELLED GUIDED RCS BURN                     ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ] THE GUIDED DELTA V INDICATOR IS SET BY THE MODING, SEQUENCING, AND  ]
 ] CONTROL (MSC) MODULE FOR A SCHEDULED GUIDED RCS BURN AT TIG MINUS   ]
 ] ONE SECOND IN MAJOR MODES 104, 105, AND 302. WHEN THE GUIDED DELTA  ]
 ] V INDICATOR IS SET, TRANS-DAP WILL RECONFIGURE FROM RCS COAST       ]
 ] DEADBANDS (I-LOADED AT 3.5 DEGREES) TO GUIDED RCS BURN DEADBANDS    ]
 ] (I-LOADED AT 3.0 DEGREES) AND WILL MODE TO DISCRETE RATE            ]
 ] ROTATIONAL SUBMODE WHILE IN MANUAL MODE. THE FLIGHT SOFTWARE WILL   ]
 ] RESET THE GUIDED DELTA V INDICATOR ONLY AFTER A NORMAL COMPLETION   ]
 ] OF THE RCS BURN OR UPON ENTERING MM 105, 106, 301, OR 303.          ]
 ] CONSEQUENTLY, IF A GUIDED RCS BURN IS NOT COMPLETED OR IS CANCELLED ]
 ] BY ENTERING ANY TARGET ITEM THROUGH THE MNVR EXEC DISPLAY AFTER     ]
 ] TIG MINUS ONE SECOND, THE FOLLOWING WILL BE TRUE WHILE IN MM 104,   ]
 ] 105, OR 302 UNTIL THE WORKAROUND DESCRIBED BELOW IS PERFORMED:      ]
 ]                                                                     ]
 ] A. THE TRANS-DAP WILL USE RCS BURN DEADBANDS WHICH ARE 3.0 DEGREES  ]
 ]    IN ALL 3 AXES INSTEAD OF THE DESIRED RCS COAST DEADBANDS OF 3.5  ]
 ]    DEGREES.                                                         ]
 ]                                                                     ]
 ] B. MANUAL DAP WILL BE LOCKED IN DISCRETE RATE SUBMODE REGARDLESS    ]
 ]    OF THE PBI SUBMODE SELECTION.                                    ]
 ]                                                                     ]
 ] C. THE DESIRED ATTITUDE WILL BE THE SAME AS IT WAS DURING THE       ]
 ]    BURN, I.E. THE CURRENT ATTITUDE WILL NOT BECOME THE DESIRED      ]
 ]    ATTITUDE WHEN THE BURN IS TERMINATED.                            ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 @



 DR50776
 +_____________________________________________________________________
 ]                       SUPPLEMENTAL SHEET                            ]
 ]_____________________________________________________________________]
 ] AUTHOR:            ]                             ] DR:              ]
 ] J. ZOPHY           ]    PASS PROGRAM NOTE        ]    50776         ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE: AUG. 1987  ]
 ] ENG/282-8409       ]      RELEASE NOTE( )        ]                  ]
 ]____________________]_____________________________]__________________]
 ] TITLE:                                                              ]
 ] TRANS-DAP STATE AFTER CANCELLED GUIDED RCS BURN                     ]
 ]_____________________________________________________________________]
 ] USER RESPONSE:                                                      ]
 ]                                                                     ]
 ] IF A GUIDED RCS BURN IS ABNORMALLY TERMINATED AFTER TIG MINUS ONE   ]
 ] SECOND, THE FOLLOWING NEEDS TO BE DONE IN ORDER TO RECOVER THE      ]
 ] LOCKED TRANS-DAP CAPABILITIES:                                      ]
 ]                                                                     ]
 ] A.  IF IN OPS 1, PRO TO MM 105 OR 106.                              ]
 ]                                                                     ]
 ] B.  IF IN MM 302, PRO TO MM 301 OR 303;                             ]
 ]                                                                     ]
 ] OR REGARDLESS OF MM, PERFORM A DUMMY RCS BURN WITH A DELTA V OF     ]
 ] ZERO. THIS WILL CAUSE THE GUIDED DELTA V INDICATOR TO BE RESET.     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: WYATT COOPER         DATE 7/28/88 ]                             ]
 ]    --------------------      ---------]                             ]
 ]SSD: SAM ANKNEY           DATE 7/28/88 ]                             ]
 ]    --------------------      ---------] RW MOOREHEAD        7/30/88 ]
 ]PF MGR: ET KUBIAK         DATE 7/29/88 ]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
 @



