+ 1970 News Releases (7.6 Mb PDF file) - NASA

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a. Ail external thermal control coating surfaces
(1) Inspection (portable devices for emittance_ absorptance)
measurements to esta%iish the range and contours of the thermal eroperty
characteristics of the parts.
(2) Spectral reflectance and/or transmittance of selected
parts from all surfaces from 0.25 to 25 microns. This is the spectral
range of interest for thermal properties.
(3) Visual and scanning electron microscopic examination of
all exterior surfaces for exposure effects including meteoroid impact,
sputtering_ and lunar debris adhesion.
b. Mirrors_ _eflon_ and Kapton
(1) Specular and diffuse reflectance 0.25 to 25 microns
(2) Spectral transmission as appropriate, (i.e._ if meta!lized
surface is absent), and possibly determination of optical constants
such as index of refraction.
c. Section of polished metal tube
Extensive reflectance measurements of selected areas to es%ablish
the magY_itude and nature of surface errosion.
d. TV camera_ TV support tube supporting experiments will oe
required to determine the nature and rr_gnitu_e of atmospheric bleaching
(if any) of white paint.
A micrometeoroid investigation will examine the flux_ composition,
mass_ velocity, and similar properties of primary particles and secondary
ejecta associated with the lunar environment. Photographs of the particle
accumulation on Surveyor Pad III_ the Klystron Power Supply_ and top of
compartments A or B or the TV mirror will be analyzed for data on the
ejeeta formation rate and size distribution.