Personnel Working on a Tracking Antenna

Two people work on a Deep Space Network antenna. To concentrate enough power for receiving and sending data, the huge antenna focuses a narrow microwave beam that must be aimed precisely at the spacecraft. To remain fixed on it, the antenna must continually move at the precise rate of the Earth’s rotation—0.004 degrees per second.

Caption:
Two people work on a Deep Space Network antenna in Goldstone, California.
Type: Photograph
Image Taken: Goldstone, California, United States
Credit: Courtesy of NASA/JPL-Caltech
Origin: Jet Propulsion Laboratory, National Aeronautics and Space Administration
D2002_0206_C4
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Two people work on a Deep Space Network antenna in Goldstone, California.