Spacecraft technology. Volume VII - The Orbiting Astronomical Observatory
Design of command and data handling system for orbiting astronomical observatory, and scientific experiments for OAO spacecraft
SYSTEMS DESIGN↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Spacecraft telemetry and command
Probability distribution of time to first loss of lock investigated by second order phase-locked loop - spacecraft telemetry and command
PHASE LOCK↗
Study of a Renovated Command Module Laboratory and Renovated Command Module. Volume 2 - Mission System Performance and Configuration Analysis Final Report
Diffusion of Freon and helium trace gases for detection of leaks in aerospace systems
Dodds, J. I.↗
Apollo reaction control systems.
Apollo reaction control systems, describing command module, service module, lunar module, engine qualifications, etc
Vaughan, C. A.↗
Preliminary data for plume definition of the R4D engine for the Command Service Module Reaction Control System
Exhaust plume characteristics for R4D engine used by CSM reaction control system
Source record↗
Solid state sequencer system, phase 2, volume 2. Appendix A - Engineering drawing list Summary report
Engineering drawing lists for solid state sequencer system in command module and service module jettison controller
Source record↗
Solid State Sequencer System, Phase 2, Volume 1 Summary Report
Logic circuitry, and environmental and acceptance tests for solid state sequencer system in command module and service module jettison controller
Source record↗
Solid State Sequencer System, Phase 2, Volume 3. Appendix B - Wiring Lists Summary Report
Wiring lists for solid state sequencer system in command module and service module jettison controller
Source record↗
A History of the Deep Space Network from Inception to 1 January 1969
Design, development, and operation of communications system for command and control of unmanned spacecraft during exploration of deep space
Renzetti, N. A.↗
Shuttle/Agena study. Annex B: Catalog of existing flight equipment
The Agena space tug design was based on the requirements of representative reference missions, the use of existing hardware, and the experience gained from more than 300 Agena flights. To provide a convenient reference for understanding the Agena tug design selection or for evaluating alternative concepts, this catalog of existing flight equipment was prepared. Equipment descriptions are grouped by Agena subsystem, as follows: spaceframe; propulsion; electrical; guidance and flight controls; and telemetry, tracking, and command. These systems, most of which have been flight qualified on prior Agena programs, permit specialized mission requirements to be satisfied without sacrificing cost or reliability.
Source record↗
A comparison of results from two simulators used for studies of astronaut maneuvering units
A comparison of the results from a fixed-base, six-degree-of -freedom simulator and a moving-base, three-degree-of-freedom simulator was made for a close-in, EVA-type maneuvering task in which visual cues of a target spacecraft were used for guidance. The maneuvering unit (the foot-controlled maneuvering unit of Skylab Experiment T020) employed an on-off acceleration command control system operated entirely by the feet. Maneuvers by two test subjects were made for the fixed-base simulator in six and three degrees of freedom and for the moving-base simulator in uncontrolled and controlled, EVA-type visual cue conditions. Comparisons of pilot ratings and 13 different quantitative parameters from the two simulators are made. Different results were obtained from the two simulators, and the effects of limited degrees of freedom and uncontrolled visual cues are discussed.
Stewart, E. C.↗
National Aeronautics and Space Administration /NASA/ Sounding Rocket Program
An overview of the NASA Sounding Rocket Program is presented. The program has launched a total of 1912 rockets representing 30 types of vehicle configurations. Payloads have been primarily directed to the disciplines of magnetodynamics, solar physics, stellar and planetary astronomy and meteorology. The vehicles, launching sites, and launching techniques used in the program are described, and the pointing control systems and command links developed in the course of the program are discussed.
Holtz, J. R.↗
User's guide for SFTRAN/360
Extension and improvements made to SFTRAN, a structured-programming language are discussed. This improved language is implemented as a precompiler that translates from SFTRAN to FORTRAN. The SFTRAN language and its use are described. Time-Sharing System (TSS) command procedures were implemented that eliminate the complications of dealing with extra files and processing steps which the use of a precompiler would otherwise require. These command procedures are described and their use is illustrated by examples.
Fessler, T. E.↗
Viking extended mission support
The period from 1 July through 31 August 1977 is covered and included is the remainder of post DSN Mark 3 Data Subsystem Implementation Project Viking-related testing at DSS14. Also included are reports on the Viking DSN Discrepancy Reporting System, Viking command support, tracking support, and periodic tests conducted with the Viking spacecraft.
Howe, T. W.↗
Viking extended mission support
The status of the Viking Deep Space Network Mark 3 '77 data subsystem implementation project and related testing at DSS 42/43 from 1 September through 31 October 1977 are reported. The Viking DSN discrepancy reporting system, Viking command support, tracking support, and periodic tests conducted with the Viking spacecraft are also discussed.
Howe, T. W.↗
Digital generation of command-encoder waveforms
Command encoder for command data system produces sinusoidal signals by purely digital means.
Ataras, W. S.↗
Deployment/retraction mechanism for solar maximum mission high gain antenna system
A mechanism called a deployment/retraction assembly (DRA) which provides not only a stable, but a deployable platform for the high gain antenna system (HGAS) aboard the Solar Maximum Mission (SMM) spacecraft is described. The DRA also has the capability to retract the system upon command.
Bennett, N.↗
A comparison of the V/STOL handling qualities of the VAK-191B with the requirements of AGARD report 577 and MIL-F-83300
The handling qualities of the VAK-191B VTOL aircraft are compared with current V/STOL handling qualities requirements. The aircraft handling qualities were superior to other V/STOL fighter aircraft. Several deficiencies which would seriously affect shipboard V/STOL operation includes: (1) poor hovering precision; (2) inadequate mechanical control characteristics; (3) nonlinear pitch and roll response; (4) an uncommanded movement of the height control lever; (5) low pitch control sensitivity; (6) excessive dihedral effect; and (7) inadequate overall thrust response. The attitude command control system resulted on reduced pilot workload during hover and low speed flight.
Anderson, S. B.↗