Development of protective coatings for tantalum T-22 alloy Final summary report
Oxidation resistance tests of protective coatings for tantalum alloy
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Oxidation resistance tests of protective coatings for tantalum alloy
Ceramics tested for use in hydrodynamic gyroscope gas bearings
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Mass spectrometry capabilities of cold cathode magnetron ion source for use in ultrahigh vacuum residual gas analysis
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Reliability efforts and test facility developments summarized for Deep Space Instrumentation Facility and Surveyor, Mariner, and Voyager projects
Sine-wave tracking studies indicate predictability of input and control device dynamics in manual control by human operator
The Deep Space Network (DSN), established by the NASA Office of Tracking and Data Acquisition, is under the system management and technical direction of JPL. The DSN is responsible for two-way communications with unmanned spacecraft travelling from approximately 10,000 miles from Earth to interplanetary distances. Tracking and data-handling equipment to support these missions is provided. Present facilities permit simultaneous control of a newly launched spacecraft and a second one already in flight. In preparation for the increased number of U.S. activities in space, a capability is being developed for simultaneous control of either two newly launched spacecraft plus two in flight, or four spacecraft in flight. Advanced communications techniques are being implemented to make possible obtaining data from, and tracking spacecraft to, planets as far out in space as Jupiter.
Beam alignment techniques based on current multiplication effect in photoconductors for application to spacecraft communications system
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Temperature regulation in pocket mouse for space biology research
Molecular aspects of biological development in relation to unicellular organisms and concepts for unicellular model
Test procedure development for high-intensity thermal testing of solar probe spacecraft
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