1+_____________________________________________________________________
 ] AUTHOR:            ]                             ] DR:              ]
 ]   D. H. WHITE      ]    PASS PROGRAM NOTE        ]      104510      ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE (X)  USER NOTE ( ) ] DATE:  06/12/92  ]
 ]   IBM/282-7826     ]      RELEASE NOTE( )        ]                  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] OI-20 THRU OI-22              ]  CREW (X)  GROUND (X)  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )]   G2                            ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA:  ORBIT, TARGET, ANNUNCIATION                     ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: 5.10, 4.110                                    ]
 ]_____________________________________________________________________]
 ] TITLE:  EXTRA STEP EXECUTED WHEN ALARM_KILL IS ON IN PREVR TASK     ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]   DURING ORBIT TARGETING (OPS 2), WHEN LAMBERT TARGETING FAILS, AN  ]
 ]   EXTRA 'TGT ITER' MESSAGE (FROM THE PREVR TASK) MAY BE SENT TO THE ]
 ]   CREW VIA CRT ANNUNCIATION (GAX).  THE FIRST MESSAGE (FROM THE     ]
 ]   LAMBERT TARGETING TASK) WILL BE EITHER 'TGT DELTA-T' OR           ]
 ]   'TGT ITER'.                                                       ]
 ]                                                                     ]
 ]   THIS EXTRA MESSAGE MAY BE SENT ONLY IF THE MAXIMUM NUMBER OF      ]
 ]   PREVR TASK ITERATIONS HAS BEEN REACHED AND THE LAMBERT TARGETING  ]
 ]   TASK (CALLED BY THE PREVR TASK) FAILS ON THAT ITERATION, AND NOT  ]
 ]   ON PREVIOUS ITERATIONS.                                           ]
 ]                                                                     ]
 ]   THIS PROBLEM AFFECTS GAX ONLY.                                    ]
 ]                                                                     ]
 ]   NOTE:  IF THE FIRST MESSAGE IS 'TGT ITER', IT IS UNLIKELY THAT    ]
 ]   THE SECOND 'TGT ITER' MESSAGE WILL BE DISPLAYED.  THE SAME BIT IS ]
 ]   USED BY BOTH THE PREVR AND LAMBERT TARGETING TASKS TO SEND THE    ]
 ]   MESSAGE.                                                          ]
 ]                                                                     ]
 ]   NOTE:  IF THE MAXIMUM NUMBER OF PREVR TASK ITERATIONS HAS BEEN    ]
 ]   REACHED AND THE LAMBERT TARGETING TASK DOES NOT FAIL, THEN THE    ]
 ]   'TGT ITER' MESSAGE (FROM THE PREVR TASK) WILL BE SENT TO THE CREW ]
 ]   VIA GAX PER REQUIREMENTS.  THIS IS TRUE EVEN IF A TARGETING       ]
 ]   SOLUTION IS REACHED AT THIS POINT.                                ]
 ]_____________________________________________________________________]
 ] USER RESPONSE:                                                      ]
 ]                                                                     ]
 ]   DETERMINE WHY ORBIT TARGETING HAS FAILED (AS IN STS-49).          ]
 ]   THE SECOND MESSAGE CAN BE IGNORED.                                ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM: PATTI A. THORNTON    DATE 08/31/92]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD:   W. R. PRUETT      DATE 09/01/92]                             ]
 ]     -------------------      ---------] DARRELL E. STAMPER 11/06/92 ]
 ]PF MGR: H. S. ESTES       DATE 09/21/92]------------------- -------- ]
 ]       JEFFERSON D. POWELL     09/22/92] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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