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ADDJUST - An automated system for steering Centaur launch vehicles in measured windsADDJUST (Automatic Determination and Dissemination of Just-Updated Steering Terms) is an automated computer and communication system designed to provide Atlas/Centaur and Titan/Centaur launch vehicles with booster-phase steering data on launch day. Wind soundings are first obtained, from which a smoothed wind velocity vs altitude relationship is established. Design for conditions at the end of the boost phase with initial pitch and yaw maneuvers, followed by zero total angle of attack through the filtered wind establishes the required vehicle attitude as a function of altitude. Polynomial coefficients for pitch and yaw attitude vs altitude are determined and are transmitted for validation and loading into the Centaur airborne computer. The system has enabled 14 consecutive launches without a flight wind delay.
Document ID
19780031082
Document Type
Conference Proceedings
Authors
Swanson, D. C. (General Dynamics Corp. Convair Div., San Diego, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Meeting Information
Conference on Aerospace and Aeronautical Meteorology and Symposium on Remote Sensing from Satellites(Melbourne, FL)
Funding Number(s)
CONTRACT_GRANT: NAS3-13514
Distribution Limits
Public
Copyright
Other