Accession Number:

AD0628208

Title:

EFFECTS OF MICROMETEOROID CRATERING ON THE DIRECTION OF THE AXIS OF MAXIMUM MOMENT OF INERTIA,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s):

Report Date:

1966-02-01

Pagination or Media Count:

13.0

Abstract:

The use of an artificial earth satellite as a gyroscope for measurement of a possible effect of general relativity, described by Schiff, is being studied. Mirrors on the surface of a fully passive spinning satellite will be used to reflect solar light for measuring a predicted change of six seconds of arc in the spin axis direction during a one year experiment. Although long term changes in the angle between the mirrors and the satellite spin axis can be corrected for, short term changes during the course of a measurement several weeks can cause significant errors in the data. Because of the high degree of inertial symmetry necessary for reduction of gravitygradient torque, meteoroids which do not significantly disturb the direction of angular momentum have a significant effect, after damping, on the direction of the body axis and mirrors relative to the spin axis. The effect of meteoroids on the principal axes of inertia, which ultimately control the body axis, is discussed herein. Author

Subject Categories:

  • Celestial Mechanics
  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE