DESCRIPTION |
Instrument Host Overview
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The main source for this text is the National Space Science Data Center.
The spacecraft was based on modifications to the orbiter portions of the
Venera 9 and 14 probes. It consisted of a 5 m long cylinder with a 6 m
diameter, 1.4 m tall parabolic dish antenna for the synthetic aperture
radar at one end. A 1 meter diameter parabolic dish antenna for the radio
altimeter was also located at this end. The electrical axis of the radio
altimeter antenna was lined up with the axis of the cylinder. The
electrical axis of the synthetic aperture radar deviated from the
spacecraft axis by 10 degrees. During imaging, the radio altimeter would
be lined up with the center of the planet (local vertical) and the
synthetic aperture radar would be looking off to the side at 10 degrees.
A bulge at the opposite end of the cylinder held fuel tanks and
propulsion units. Two square solar arrays extended like wings from the
sides of the cylinder. A 2.6 m radio dish antenna for communications was
also attached to the side of the cylinder.
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