Orbital Pegasus - Manual (Page 4)

Release 7.0 Apr 2010 iv
Pegasus User’s Guide
TABLE OF CONTENTS (CONTINUED)
PAGE
4.9.4. Powered Flight......................................................................................................................... 21
4.9.5. Nitrogen Purge ........................................................................................................................ 21
4.10. Payload Electromagnetic Environment ........................................................................................ 21
4.11. Payload Contamination Control.................................................................................................... 22
5. SPACECRAFT INTERFACES.............................................................................................................. 23
5.1. Payload Fairing............................................................................................................................. 23
5.1.1. Fairing Separation Sequence .................................................................................................. 24
5.1.2. Payload Design Envelopes...................................................................................................... 24
5.1.3. Payload Access Door .............................................................................................................. 24
5.2. Payload Mechanical Interface and Separation System................................................................ 24
5.2.1. Standard Nonseparating Mechanical Interface ....................................................................... 24
5.2.2. Standard Separating Mechanical Interface ............................................................................. 24
5.3. Payload Electrical Interfaces ........................................................................................................ 29
5.3.1. Standard Electrical Interface ................................................................................................... 33
5.3.2. Mission-Unique Electrical Interface ......................................................................................... 34
5.3.2.1. Range Safety Interfaces/Vehicle Flight Termination......................................................... 35
5.3.2.2. Electrical Isolation ............................................................................................................. 35
5.3.2.3. Pre-Drop Electrical Safing................................................................................................. 35
5.4. Payload Design Constraints ......................................................................................................... 36
5.4.1. Payload Center of Mass Constraints....................................................................................... 36
5.4.2. Final Mass Properties Accuracy.............................................................................................. 36
5.4.3. Payload EMI/EMC Constraints ................................................................................................ 36
5.4.4. Payload Stiffness..................................................................................................................... 37
5.4.5. Payload Propellant Slosh ........................................................................................................ 37
5.4.6. Customer Separation System Shock Constraints ................................................................... 37
5.4.7. System Safety Constraints ...................................................................................................... 38
5.5. Carrier Aircraft Interfaces ............................................................................................................. 38
5.5.1. Payload ASE Provisions.......................................................................................................... 38
5.5.2. Payload Support at Launch Panel Operator Station ............................................................... 39
6. MISSION INTEGRATION..................................................................................................................... 39
6.1. Mission Management Structure.................................................................................................... 39
6.1.1. Orbital Mission Responsibilities............................................................................................... 39
6.1.1.1. Pegasus Program Management ....................................................................................... 40
6.1.1.2. Pegasus Mission Management......................................................................................... 40
6.1.1.3. Pegasus Mission Engineering........................................................................................... 40