NDLI: Space tug avionics definition study. volume 5: cost and programmatics

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Space tug avionics definition study. volume 5: cost and programmatics

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1975
Description	The baseline avionics system features a central digital computer that integrates the functions of all the space tug subsystems by means of a redundant digital data bus. The central computer consists of dual central processor units, dual input/output processors, and a fault tolerant memory, utilizing internal redundancy and error checking. Three electronically steerable phased arrays provide downlink transmission from any tug attitude directly to ground or via TDRS. Six laser gyros and six accelerometers in a dodecahedron configuration make up the inertial measurement unit. Both a scanning laser radar and a TV system, employing strobe lamps, are required as acquisition and docking sensors. Primary dc power at a nominal 28 volts is supplied from dual lightweight, thermally integrated fuel cells which operate from propellant grade reactants out of the main tanks.
File Size	7709002
Page Count	136
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750018989
Archival Resource Key	ark:/13960/t3xt0gr5b
Language	English
Publisher Date	1975-04-01
Access Restriction	Open
Subject Keyword	Spacecraft Instrumentation Digital Computers Accelerometers Space Tugs Channels Data Transmission Avionics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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