Lunar and Planetary Institute

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https://hdl.handle.net/20.500.11753/1
The Lunar and Planetary Institute is a research institute that provides support services to NASA and the planetary science community, and conducts planetary science research under the leadership of staff scientists, visiting researchers, and postdoctoral fellows.

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Browsing Lunar and Planetary Institute by Subject "Aerospace telemetry"
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    A2 ALSEP Data Transmitter failure mode, effects and criticality analysis
    (Bendix Aerospace Systems Division, 1970) Fox, T. W.
    This report presents a Failure Mode, Effects and Criticality Analysis (FMECA) performed on the Data Transmitter and documented in the attached worksheets.
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    A2 ALSEP Data Transmitter reliability prediction
    (Bendix Aerospace Systems Division, 1970) Fox, T. W.
    This report presents the Data Transmitter reliability prediction estimates derived through the studies of Data Transmitter Failure Mode, Effects and Criticality Analysis (FMECA) and Data Transmitter Parts Application Analysis (PAA).
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    ALSEP communications performance margin summary
    (Bendix Aerospace Systems Division, 1969) Lanning, H. E.
    This document re-evaluates the ALSEP/MSFN communication performance margins as a result of performance measurements made upon existing ALSEP hardware.
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    ALSEP S-band data transmitter short term stability
    (Bendix Aerospace Systems Division, 1970) Reeves, J. T.
    The purpose of this ATM is to define the carrier stability and to provide samples of typical stability data applicable to ALSEP's 1 through 4. The data presented should permit those interested in such potential use to determine if the stability is adequate for their needs.
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    ALSEP telemetry data simulation
    (Bendix Aerospace Systems Division, 1967) Coleman, C. W.
    Describes a system used to check out programs written to decommutate and process telemetry (TM) data in real-time.
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    Apollo 14 ALSEP uplink anomaly
    (Bendix Aerospace Systems Division, 1975) Wallace, R. B.
    The Apollo 14 ALSEP downlink signal stopped on 1 March 1975. Efforts to regain a signal, by uplinking commands to switch to the redundant processor or transmitter, failed.
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    Array E calibration curves
    (Bendix Aerospace Systems Division, 1972) Bedford, A.
    This ATM summarizes the scope and contents of the calibration curve data book and calibration magnetic tape which will be supplied to the MCC for ALSEP Array E downlink data conversion. Certain of the Array data channels require special conversions which are out of scope of the Apollo/Saturn Calibration Tape Format Mod 1; special reference to these channels is contained herein.
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    Array E S-Band compatibility test results analysis
    (Bendix Aerospace Systems Division, 1972) Jensen, C. W. ; Thomas, D. J.
    This report documents an investigation of the MSFN/ALSEP S-Band Compatibility Test Results and provides a rationale and recommendation relative to the test validity and relative to Command Decoder Circuit Modifications made subsequent to the test performance.
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    Array E uplink redundancy method justification
    (Bendix Aerospace Systems Division, 1971) Dallaire, Rodney J. ; Thomas, D. J.
    This ATM provides the reliability justification for the redundancy method employed in the Array E (Apollo 17) uplink. The Array E uplink employs standby redundancy without cross-over and automatic switch-over after 61 hours in the event of uplink failure.
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    Data acquisition plan. Annex F, MCC/STDN validation testing and support manual for ALSEP
    (Lyndon B. Johnson Space Center, 1976)
    Contains test procedures to be used for validating the compatibility of Spacecraft Tracking and Data Acquisition Network to Mission Control Center and their readiness to support the ALSEP program.
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    Design specification for ALSEP Array E System Test Set Data Unit
    (Bendix Aerospace Systems Division., 1971) Swanson, R. C.
    This specification defines the performance, electrical interface and design requirements for the ALSEP Array E System Test Set Data Unit.
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    Electronic systems test program ALSEP (Array E) STDN USB compatibility test report
    (Manned Spacecraft Center, 1972) Logan, Joseph C.
    This document presents the objectives, results, and conclusions of the ALSEP (Array E) Spaceflight Tracking and Data Network (STDN) Unified S-band (USB) Compatibility Test Program. The tests were performed in the Electronic: Systems Test Laboratory (ESTL) at the Manned Spacecraft Center between 6 January 1972 and 21 January 1972. March 27, 1972.
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    Electronic systems test program Apollo communications system ALSEP command link test report
    (Lockheed Electronics Company, Houston Aerospace Systems Division, 1969) Patrick, A. E. ; Logan, Joseph C.
    To verify the command link from the unified S-band Manned Space Flight Network (MSFN) to the Apollo Lunar Surface Experiments Package (ALSEP), a series of tests was performed at the Manned Spacecraft Center at Houston, Texas. The ALSEP command link test program was primarily devoted to the investigation of anomalies associated with the Early Apollo Scientific Experiments Package (EASEP), which was placed on the lunar surface by the Apollo 11 astronauts, and the investigation of the effects of two simultaneous uplink (MSFN-ALSEP) signals on the ALSEP. This report contains the results, conclusions, and recommendations concerning the ALSEP tests.
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    High temperature operation of EASEP transmitters
    (Bendix Aerospace Systems Division, 1969) Reeves, J. T.
    High temperature functional tests were performed on Prototype Transmitter SN-5 and Qualification Transmitter SN-8 to determine operating characteristics of ALSEP data transmitters in the high temperature possible at EASEP initial deployment.
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    Housekeeping data during active seismic mode
    (Bendix Systems Division, 1966) Douthat, D. Z.
    Five of the sixteen channels of the analog multiplexer in the Active Seismic data processor have been as signed for central station measurements. These five will be the only telemetry on the central station during Active Seismic operation.
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    Measurement list
    (Bendix Systems Division, 1966) Pistor, H.
    Contains all items of telemetry and commands in Array A.
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    Modified ALSEP maximum antenna pointing errorModified ALSEP maximum antenna pointing error
    (Bendix Aerospace Systems Division, 1969) Lanning, H. E.
    This analysis determines the maximum allowable antenna pointing error for the telemetry and command links based upon a 0 db performance margin for either nominal or worst case conditions for communication margins to be maintained.This analysis determines the maximum allowable antenna pointing error for the telemetry and command links based upon a 0 db performance margin for either nominal or worst case conditions for communication margins to be maintained.
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    Packing of Central Station event measurements
    (Bendix Systems Division, 1966) Douthat, D. Z.
    This memo recommends that 4 or 5 central station events be packed into a single analog channel and shows a simple method for doing this.
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    Parts application analysis S-Band transmitter
    (Bendix Aerospace Systems Division, 1969) Taylor, J.
    The purpose of this ATM is to document the Parts Application Analysis (PAA) for the S-Band transmitter designed and manufactured by the Bendix Aerospace Systems Division for use in ALSEP Flight System 2A. The data contained herein defines all transmitter parts less the current, temperature, and RF telemetery.
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    Parts application analysis S-band transmitter
    (Bendix Aerospace Systems Division, 1970) Fox, T. W.
    This ATM documents the Parts Application Analysis (PAA) performed on the Data Transmitter and its Telemetry circuitry.