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  • INSTRUMENTATION AND PHOTOGRAPHY  (4)
  • FACILITIES, RESEARCH, AND SUPPORT  (3)
  • SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING  (2)
Collection
Keywords
Years
  • 1
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    Improvements in stage checkout (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Test methods, equipment, and computer programs for improved quality control in space vehicle stage checkout
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Technical problems in on-board checkout systems. (1968)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Onboard checkout system technical problems
    Keywords: FACILITIES, RESEARCH, AND SUPPORT
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Type U CAMAC crate controller for the Spacelab multi-crate, multi-processor system (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: A set of standard CAMAC modules for Spacelab payloads is being developed by NASA. A crate controller, a processor module, memory modules and a databus to connect them are being developed at the Goddard Space Flight Center. These components will provide for the implementation of CAMAC data systems ranging in complexity from fixed-format, single-crate data collection systems not requiring a processor to a multi-crate data system, including several computers (processors). The Spacelab CAMAC data system is introduced with the role of the crate controller described. The implementation and operation of the crate controller is described. The instruction set of the crate controller is also presented.
    Keywords: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    The case for compatibility. (1966)
    In:  Other Sources
    Details
    Publication Date: 2018-12-01
    Description: Compatibility of checkout systems for rockets and space vehicles, with application to Saturn V launch vehicle
    Keywords: FACILITIES, RESEARCH, AND SUPPORT
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    A homotopy continuation method for general preliminary orbit determination and special application to the Tracking and Data Relay Satellite System (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A recent mathematical technique for solving systems of equations is applied in a very general way to the orbit determination problem. The use of this technique, the homotopy continuation method, was motivated by the possible need to perform preliminary orbit determination in the Tracking and Data Relay Satellite System (TDRSS), using range and Doppler tracking alone. In the formulation studied here, a set of six tracking observations is continuously transformed from a set with known solutions to the given set with unknown solutions, and the corresponding orbit state vector is followed from the a priori orbit state to the solution orbit states. A modular numerical algorithm is developed to follow the state vector. The technique is formulated and then tested, using both real and simulated tracking, with positive results. Direct comparisons show that the basic method has a much larger radius of convergence than standard or simply modified Newton-Raphson methods. An extension of the basic method is formulated that is expected to produce a global method.
    Keywords: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
    Type: AIAA PAPER 85-0215
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    High pressure pulsed capillary viscometry (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: An analytical and test program was conducted in order to establish the feasibility of a multichamber pulsed-capillary viscometer. The initial design incorporated a piston, ram, and seals which produced measured pulses up to 30,000 psi in the closed chamber system. Pressure pulses from one to ten milliseconds were investigated in a system volume of 1 cuin. Four test fluids: a MIL-L-7808, a 5P4E polyphenyl ether, a MIL-L-23699A, and a synthetic hydrocarbon were examined in the test pressure assembly. The pressure-viscosity coefficient and viscosity delay time were determined for the MIL-L-7808 lubricant tested.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-120982 , MTI-72TR33
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Improvements in a calorimeter for high-power CW lasers (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A technique for improving the measurement certainty with the BB series (Smith et al., 1972) of electrically calibrated calorimeters used in high-energy lasers is described. The technique is based on monitoring the energy which is backscattered from the meter and monitoring the overspill radiation impinging on the calorimeter at the entrance aperture. The design and performance of a second generation BB meter is discussed and compared to that of the original device in terms of number of electrical calibrations, the residual standard deviation of electrical calibration, the calibration constant for laser energy, the correcting factor for systematics, inaccuracy, imprecision, and uncertainty.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: PB-285319 , IEEE Transactions on Instrumentation and Measurement; IM-27; Mar. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Test-compatible evaluation and control systems for long life space vehicles. (1968)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Equipment requirements for checkout of missiles, space vehicles and spacecraft to establish performance during mission life, discussing control and problem solving
    Keywords: FACILITIES, RESEARCH, AND SUPPORT
    Type: INTERNATIONAL SYMPOSIUM ON SPACE TECHNOLOGY AND SCIENCE; May 15, 1967 - May 22, 1967; TOKYO; JAPAN
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Technical problems in on-board checkout systems. (1967)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Self-contained and vehicle integrated on-board checkout systems, considering controller-evaluator and sensors
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: text
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    NASA TECHNICAL REPORTS
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