Accession Number : AD0772718

Title :   The Low-G Accelerometer Calibration System Orbital Accelerometer Experiment. Volume 2. Experiment Analyses and Results

Descriptive Note : Rept. for Jun 1966-Jun 1970

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Pearson, J A ; Bruce, R W ; Chiu, Y T ; Feess, W A ; Fotou, E G

PDF Url : AD0772718

Report Date : 01 Jul 1973

Pagination or Media Count : 427

Abstract : The LOGACS (Low-G Accelerometer Calibration System) experiment, which contained a miniature electrostatic accelerometer (MESA), was placed in a low- altitude polar orbit on 22 May 1967. The experiment provided approximately 100 hours of acceleration data from which the accelerometer scale factor, accelerometer null bias, and atmospheric drag on the satellite were calculated. Extensive comparisons of the data to verious model atmospheres are made. These analyses are the more interesting because of the intense solar and geomagnetic activity during the latter part of the flight. From the data, both midlatitude and polar models of atmospheric density have been developed over altitudes for which LOGACS data were available.

Descriptors :   *ACCELEROMETERS, *ATMOSPHERIC DENSITY, *SCIENTIFIC SATELLITES, *UPPER ATMOSPHERE, ACCELERATION, AERODYNAMIC DRAG, CALIBRATION, DATA ACQUISITION, DATA PROCESSING

Subject Categories : Atmospheric Physics
      Unmanned Spacecraft
      Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE