Tracking and Navigation of Future NASA Spacecraft with the Square Kilometer Array

Details Tracking and Navigation of Future NASA Spacecraft with the Square Kilometer Array Tracking and Navigation of Future NASA Spacecraft with the Square Kilometer Array

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.5818r&link_type=abstract

American Astronomical Society, DPS Meeting #33, #58.18; Bulletin of the American Astronomical Society, Vol. 33, p.1563

Astronomy and Astrophysics

Astronomy

Scientific paper

The international radio astronomy community is currently working on the design of an array of small radio antennas with a total collecting area of one square kilometer - more than a hundred times that of the largest existing (100-m) steerable antennas. An array of this size would provide obvious advantages for high data rate telemetry reception and for spacecraft navigation. Among these advantages are a two-orders-of-magnitude increase in sensitivity for telemetry downlink, flexible sub-arraying to track multiple spacecraft simultaneously, increased reliability through the use of large numbers of identical array elements, very accurate real-time angular spacecraft tracking, and a dramatic reduction in cost per unit area. NASA missions in many disciplines, including planetary science, would benefit from this increased ground-based tracking capability. The science return from planned missions could be increased, and opportunities for less expensive or completely new kinds of missions would be created.

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