Gemini 4 Experiment Debriefing, 1967

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M-913-65-04
10. MSC-3, Tri-Axis Magnetometer
In this experiment, the
direction and magnitude
of the earth's magnetic
field with respect to the
spacecraft will be measured.
A tri-axis fluxgate magneto­
meter,
mounted in the adapter
assembly of the spacecraft wi 11
be used.
The equipment instal lo­
tion is shown in Figure 12.
-
11. MSC-10, Two-Color Earth's
Limb Photos
The astronaut wil I obtain photo­
graphs of the earth's limb using
a hand-held camera, black and
white film, and a special filter
mosaic which will allow each
picture to be taken partly
through a red filter and partly
through a blue filter.
After
the flight, the negative will
be subjected to careful measure­
ments, and the resulting data
will be used in statistical
analyses to evaluate the limb
radiance.
These studies will
be used to determine if the
sun-lit earth's limit can be
reliably observed in the short­
visible or near-ultraviolet spectral
region. The camera to be used for
this experiment is shown in Figure 13.
MSC-3 TRI-AXIS
MAGNETOMETER
MSC-10 TWO-COLOR
EARTH'S LIMB PHOTOS
MG5·8105
FIG. 13
FIG. 12
5/24/65
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