Hemispheric Asymmetries Detected from Satellite Ionization Gauge Measurements

Abstract

Results obtained from the S3-1 ionization gauge measurements are statistically examined for hemispheric asymmetries in neutral density behavior. The parameter analyzed in this study is the mean value R, the ratio of the measured density to the Jacchia 71 model value. Over 150,000 values obtained during the period from November 1974 to May 1975 and covering the altitude range from perigee (about 160 km) to 300 km are considered. Results are presented in the form of frequency histograms and graphs of mean ratios vs latitude. Significant hemispherical asymmetries are found and described in detail.

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Document Details

Document Type
Technical Report
Publication Date
Feb 25, 1980
Accession Number
ADA090339

Entities

People

  • Joseph P. Mcisaac

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Altitude
  • Artificial Satellites
  • Atmospheric Density
  • Computer Programming
  • Data Acquisition
  • Data Analysis
  • Data Science
  • Databases
  • Information Science
  • Low Altitude
  • Measurement
  • Southern Hemisphere
  • Spacecraft
  • Statistical Analysis
  • Statistical Data
  • Statistical Inference

Readers

  • Regression Analysis.
  • Space Exploration and Orbital Mechanics.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Space