Accession Number:

AD0274579

Title:

DESIGN OF THE NASA LIGHTWEIGHT INFLATABLE SATELLITES FOR THE DETERMINATION OF ATMOSPHERIC DENSITY AT EXTREME ALTITUDES

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Report Date:

1962-04-01

Pagination or Media Count:

71.0

Abstract:

A design study was made of the characteristics of inflatable spheres for use as satellites for determining atmospheric density. The spheres could be fabricated from lightweight material, compactly folded, and inflated to give a large frontal area. The temperature of the inflatable sphere while in a sunlight orbit could be controlled by coating the outside surface of the sphere. A 12-foot-diameter inflatable sphere was successfully injected into orbit and named Explorer IX 1961 Delta 1. The inflatable satellite is optically visible and appears to reflect more like a specular sphere than a diffused sphere. Radar sightings of the satellite have indicated that the 12-foot- diameter satellite is fully inflated.

Subject Categories:

  • Unmanned Spacecraft
  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE