Accession Number : ADA304474

Title :   Spacecraft Optical Environment.

Descriptive Note : Final rept. 28 Sep 89-30 Jun 95,

Corporate Author : LOCKHEED MISSILES AND SPACE CO INC PALO ALTO CA

Personal Author(s) : Mende, Stephen B.

PDF Url : ADA304474

Report Date : 27 OCT 1995

Pagination or Media Count : 42

Abstract : This report summarizes the findings of the program entitled Spacecraft Optical Environment. In this program the Lockheed Palo Alto Research Laboratory conducted a research program to investigate the interactions of spacecrafts with low earth orbit environment. This program was specifically designed to provide information to answer the critical issues in understanding optical radiation produced by space-craft when interacting with the atmosphere. The knowledge of the properties and the production mechanism of the many types of spacecraft induced radiation has applications spacecraft borne remote sensing, the detection and identification of spacecraft, and in the diagnostics of the physical and chemical interaction between spacecraft materials and their environment. The program studied radiation produced by space-craft interaction phenomena related to (1) enhanced ionization in the vicinity of the spacecraft (2) chemical reactions of fast ambient species with spacecraft surfaces and (3) chemical reaction of fast ambient species with effluents and other gaseous products of outgassing and thruster firings. In addition the optical background radiation on which the spacecraft environment is superimposed was studied.

Descriptors :   *OPTICAL PROPERTIES, *LOW ORBIT TRAJECTORIES, *SPACE ENVIRONMENTS, *ELECTROMAGNETIC RADIATION, *SPACECRAFT TRAJECTORIES, DETECTION, PRODUCTION, EARTH ORBITS, INTERACTIONS, PHYSICAL PROPERTIES, MATERIALS, FIRING TESTS(ORDNANCE), RESEARCH FACILITIES, OPTICAL SIGNATURES, GASES, IDENTIFICATION, SURFACES, CHEMICAL REACTIONS, IONIZATION, LABORATORIES, SPACECRAFT COMPONENTS, BACKGROUND RADIATION, THRUSTERS, RADIATION EFFECTS, OUTGASSING.

Subject Categories : Optical Detection and Detectors
      Radiofrequency Wave Propagation
      Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE