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Browsing ALSEP Documents by Author "Fithian, D."

Browsing ALSEP Documents by Author "Fithian, D."

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  • Wallace, R. B. (Bendix, Aerospace Systems Division, 1973)
    At 0926 GMT (actual 0919 GMT) on 26 March 1973 Apollo 16 ALSEP transmitter B was selected by mission control. Switch over was implemented after a series of data dropouts, beginning 4 March 1973 and reported by several ...
  • Fithian, D. (Bendix Aerospace Systems Division, 1970)
    This ATM provides a description of the latest configuration for the ALSEP A2 Array and includes modifications which have been incorporated into the system to include the Heat Flow Experiment. Additionally, functional ...
  • Perkins, Derek.; Tosh, Warren M. (Bendix, Aerospace Systems Division, 1974)
    This document provides engineering information relative to the long term operating characteristics of the five ALSEP systems presently active on the lunar surface. The information includes a current summary of the operational ...
  • Perkins, Derek.; Tosh, Warren M. (Bendix, Aerospace Systems Division, 1974)
    This document provides engineering information relative to the long term operating characteristics of the five ALSEP systems presently active on the lunar surface. The information includes a current summary of the operational ...
  • Perkins, Derek. (Bendix, Aerospace Systems Division, 1973)
    The purpose of this analysis is to determine the optimum long term operational profile for the five ALSEP systems presently active on the moon. The main interest is centered on the turn-off sequence, for experiments and ...
  • Perkins, Derek. (Bendix, Aerospace Systems Division, 1973)
    The Lunar Atmospheric Composition Experiment (LACE) has experienced a zero offset condition in the low and mid mass channels of the science data since the experiment was first initialized on the moon. The cause of the ...
  • Perkins, Derek. (Bendix, Aerospace Systems Division, 1973)
    The Lunar Ejecta and Meteorites Experiment (LEAM) temperature profile, during the 8th lunation of Apollo 17 ALSEP, indicated an apparent unusually rapid rise in temperature from 176 F. to 179 F. This rise was reported as ...
  • Bedford, A.; Kasser, Joe E.; Thomas, D. J. (Bendix Corporation, Aerospace Systems Division, 1972)
    This ATM describes the ALSEP Array E System. Its main purpose is to convey an understanding of the Power and Data Subsystems operation to a depth just above the circuit schematic level.
  • Bedford, A. (Bendix, Aerospace Systems Division, 1974)
    This report discusses the problems of handling, controlling and displaying data received from Space Scientific Experiments in the Shuttle Era. This report is primarily concerned with developing criteria for classifying or ...
  • Perkins, Derek. (Bendix, Aerospace Systems Division, 1974)
    This technical memorandum discusses the theoretical aspects of Systems Management, reviews the Systems Engineering approach used on the ALSEP program and concludes with recommendations for future programs.
  • Fithian, D. (Bendix Aerospace Systems Division, 1969)
    High levels of noise were measured on the HFE/Central Station power and data interface lines during Flight #3 Integration Tests. Subsequent system tests including a special noise susceptibility test proved that the HFE ...
  • Perkins, Donald H. (Bendix Corporation, Aerospace Systems Division, 1973)
    An investigation was conducted to determine why the temperature of the Lunar Ejecta and Meteorites Experiment (LEAM) exceeded the math model predictions when operating on the lunar surface.
  • Steinmeye, D. R. (Bendix Corporation, Aerospace Systems Division, 1972)
    Conventional negative temperature coefficient thermistors can be made to give a linear emf readout over a limited range if used in the right kind of circuit. A computer program is described which, given the thermistor data ...
  • Wallace, R. B. (Bendix, Aerospace Systems Division, 1975)
    The sensor beam of Flight Lunar Surface Gravimeter (LSG) has been centered by partially uncaging the lunar masses. In this configuration the sensor exhibits a 1. 5 Hertz oscilation. Attempts to duplicate this configuration ...
  • Perkins, Derek.; Fithian, D. (Bendix, Aerospace Systems Division, 1974)
    This paper provides a review of test program requirements and operations applicable to space instruments systems. The Apollo Lunar Surface Experiment Package (ALSEP) test program is summarized and then evaluated in terms ...

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