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Contents
Introduction
Geometric basics and assumptions
The Pointing Error Budget
Mechanical hysteresis, e
Antenna construction errors, e.
Encoder resolution, e.
Thermal Effects, e
Telescope tracking, e
SMU & TMU alignment
Instrument alignment
Signal-to-Noise ratio of pointing measurement, e.
Pointing logging.
Atmospheric seeing conditions, e.
Summary
Desiderata for the production of the track model
The experiments
Standard Inclinometry Configuration.
Repeated Inclinometry
The Overlap region
Hysteresis
Roll : Derived from A-frame Inclinometry
Track profile
Direct inclinometry of the track profile
Leica (optical laser ranging) measurements of the track profile
Joint Steps
Radial-Arm Inclinometry
Inclinometry and Pointing with Shims on the track
Wheel motion to A-frame tilt
Wheel motion (Right A-frame) to PITCH and ROLL
Pointing errors
Elevation Pointing Errors
Azimuth Pointing Errors
`No-track' pointing and tracking
Tracking over joints at high azimuthal resolution
Assessment of Track Errors
Discussion
Acknowledgements
Appendix A - Antenna Azimuths of Wheel-Joint Interactions
Figures & Captions
About this document ...
MTPPN /5.1
Iain Coulson
Wed Mar 12 15:06:27 HST 1997