Scientific Uses of the Space Shuttle (1974) / Chapter Skim
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MODES OF SHUTTLE USE
MODES OF SHUTTLE USE
Pages 5-13
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From page 5... ...
The critical elements in these deliberations were instrument weight and the role of man; fiscal considerations appear to have entered only peripherally. In a comprehensive analysis, the requirements for a human operator should be evaluated against the availability of Shuttle-furnished communication facilities and communication satellites; possible simplifications in experimental design as a result of manned operation should be judged against the weight penalties of necessary human-support systems.
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From page 6... ...
Instrumentation requiring orbital assembly, e.g., a very large telescope tradeoffs were addressed only tangentially in many cases. A more definitive study would require assigning priorities to the various experiments and a more careful fiscal analysis of available experiment options.
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From page 7... ...
In Orbiter Cabin d. For Deployment on Booms Outside Payload Bay e.
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From page 8... ...
We believe that this can be accomplished by providing small standardized pallet elements (a pointed element and an unpointed element, each one half standard element in size, for example) on which experiments can be integrated and placed in a standby status until a Shuttle mission able to carry additional weight can be identified.
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From page 9... ...
For essentially continuous control and operation of this kind of payload, it may be necessary to have the use of a data relay satellite. It is expected that the common support equipment needed for these experiments would be provided by the pallet, drawing perhaps on the orbiter facilities as needed.
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From page 10... ...
It may draw upon the Shuttle system for raw power and utilize the Shuttle telemetry system. Where high data rates on a nearly continuous real-time basis are required, a data relay satellite may be required.
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From page 11... ...
As required, this control package would have digital channels for special displays on the console. The package could also contain selsyns that control the experiments directly or control the circuit that generates the driving voltages required by the experiment.
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From page 12... ...
Some very complex coordinated palletmounted instrumentation facilities are under consideration, and in these cases, the general-purpose payload specialist console may not provide an adequately flexible facility for display and control of the large number of unique parameters of importance for the mission. For example, to carry out an experiment that requires deployment of both a boom package and a maneuverable subsatellite in changing sequences of directions, with known and varying sensor orientation, there must be an opportunity for continuous feedback between the output of any of the remote sensors and the control circuits.
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From page 13... ...
Experiment implementation to be conducted from a single location where all orbit, attitude, experiment telemetry data, and preflight calibration and test data reside; 5. All the experiment information to be available to the best trained experts in the case of anomalous experiment behavior; 6.
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