Accession Number : ADA306875

Title :   Postflight Optical Evaluation of the Right-Hand and Left-Hand Windows of Gemini Missions IV, V, VI, and VII.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Personal Author(s) : Bonner, George P. ; Heidt, Michael F. ; Kotila, Carl L. ; Lintott, John A. ; Novotny, John E.

PDF Url : ADA306875

Report Date : DEC 1968

Pagination or Media Count : 50

Abstract : Transmission and relative resolution measurements were made before cleaning, and transmission, schlieren, relative resolution, and interferometric measurements were made after cleaning, on the right-hand and left-hand windows of Gemini spacecraft G-IV to G-VII. Chemical analyses of the contamination cleaned from the windows show that the primary constituent is amorphous silica.

Descriptors :   *OPTICAL ANALYSIS, *ARTIFICIAL SATELLITES, REENTRY VEHICLES, DEGRADATION, CHEMICAL CONTAMINATION, SILICON DIOXIDE, RESOLUTION, VOLTAGE, TRANSMITTANCE, OPTICAL INTERFEROMETERS, WINDOWS, SPACE FLIGHT, ANTIREFLECTION COATINGS, SPACE MISSIONS, CHEMICAL ANALYSIS, SCHLIEREN PHOTOGRAPHY, OPACITY.

Subject Categories : Optics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE