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Title: Estimating accurate relative spacecraft angular position from DSN VLBI phases using x-band telemetry or DOR tones
Authors: Bagri, Durgadas S.
Majid, Walid
Keywords: spacecraft angular position
Deep Space Network (DSN)
x-band telemetry
DOR tones
Issue Date: 7-Mar-2009
Publisher: Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009
Citation: IEEE Aerospace Conference, Big Sky, MO, 2008
Abstract: At present spacecraft angular position with Deep Space Network (DSN) is determined using group delay estimates from very long baseline interferometer (VLBI) phase measurements employing differential one way ranging (DOR) tones. As an alternative to this approach, we propose estimating position of a spacecraft to half a fringe cycle accuracy using time variations between measured and calculated phases as the Earth rotates using DSN VLBI baseline(s). Combining fringe location of the target with the phase allows high accuracy for spacecraft angular position estimate. This can be achieved using telemetry signals of at least 4-8 MSamples/sec data rate or DOR tones
Appears in Collections:JPL TRS 1992+

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