Space shuttle guidance, navigation and control equation document no. 19 : Prelaunch alignment and platform compensation

Author:: Gallagher, J. L.
Published:: Jul 1, 1972.
Physical Description:: 1 electronic document

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Summary:

The prelaunch-alignment program which aligns the stable platform to some desired orientation with respect to the local navigation reference frame is discussed. The alignment progresses in three distinct phases: coarse aligning, leveling, and gyrocompassing. While the program is in the leveling or gyrocompassing phase, a new launch azimuth may be specified without reinitiating the program. At liftoff, control is passed to a navigation monitor/control program. A description of the stable-platform-compensation program is included. The programs and equations given are similar to those used for Apollo.

Other Subject(s):

NAVIGATION

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 19730010911.
Accession ID: 73N19638.
NASA-CR-128802.

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No Copyright.

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