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Communicating across the solar systemThe exploration of the solar system by means of spacecraft would not be possible in its present form without the art and science of communications. Particularly exacting requirements arise in connection with the study of the planets and the interplanetary medium beyond the orbit of Jupiter. Developments in technology providing the required communication capability are partly based on the principle of the phase-locked loop as a narrow-band tracking filter. Mission objectives and performance are discussed for Pioneers 10 and 11 and Voyagers 1 and 2 which at present are the only spacecraft beyond the orbit of Jupiter. A description is given of challenges related to communication in the case of the passage of Voyager 2 near Uranus in 1986 and near Neptune in 1989, taking into account the approaches employed to meet these challenges. Attention is given to requirements concerning international cooperation regarding the ground network, the development of interagency and intra-agency arraying, and the improvement of antenna efficiency.
Document ID
19850030967
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Reid, M. S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lyman, P. T.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Force, C. T.
(NASA Ground Network Div. Washington, DC, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Subject Category
Astronautics (General)
Report/Patent Number
IAF PAPER 84-195
Accession Number
85A13118
Distribution Limits
Public
Copyright
Other

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