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  • 1
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    Mars Observer Mission Operations (1991)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Keywords: ASTRONAUTICS (GENERAL)
    Type: Journal of Spacecraft and Rockets (ISSN 0022-4650); 28; 542-551
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Mars Observer Mission Operations (1989)
    In:  Other Sources
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    Publication Date: 2019-06-28
    Description: Mars Observer, planned for launch in September 1992, will be the first deep space planetary mission to fully utilize a distributed operations concept for science instrument control. In addition, several of the other concepts proposed by the Mission Operations and Information Systems Subcommittee of the Solar System Exploration Committee have been adopted for the purpose of improving the efficiency and reducing the costs of Deep Space Mission Operations.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AIAA PAPER 89-0257
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Characterization Testing of Lockheed Martin Standard Micro Pulse Tube Cryocooler (2016)
    In:  Other Sources
    Details
    Publication Date: 2019-12-28
    Description: No abstract available
    Keywords: Engineering (General)
    Type: JPL-CL-16-2561 , International Cryocooler Conference; Jun 20, 2016 - Jun 23, 2016; San Diego, CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Mars Observer mission (1987)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Mars Observer, the first of the observer series of planetary exploration missions recommended by the Solar System Exploration Committee, is planned for an August 1990 launch. Its principal objectives are in the areas of geoscience and climatology. This paper provides a summary description of the Mars Observer mission that focuses upon the mission characteristics, including key features of the trajectory, navigation challenges, and the science data acquisition objectives and process. To put the foregoing into the proper perspective, brief descriptions of the proposed science investigations and the spacecraft are also provided.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AAS PAPER 86-332 , Aerospace century XXI: Space missions and policy; Oct 26, 1986 - Oct 29, 1986; Boulder, CO; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Characterization Testing of Lockheed Martin Standard Micro Pulse Tube Cryocooler (2016)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the thermal performance, exported vibration, and magnetics testing and results of a Lockheed Martin standard micro pulse tube cryocooler. The thermal performance of the microcooler was measured in vacuum for heat reject temperatures between 150 and 300 K. The cooler was driven with Thales XPCDE4865 drive electronics for input powers ranging from 4 to 20 W and drive frequency between 84 and 98 Hz. The optimal drive frequency was dependent on both input power and heat reject temperature. In addition, the exported forces and torques of the cooler were measured with the cooler driven by Thales CDE7232 drive electronics for input powers ranging from 4 to 20 W and drive frequency between 88 and 96 Hz. The exported forces were dependent on both input power and drive frequency. Moreover, the automatic vibration reduction function of the drive electronics was able to decrease the force in the compressor axis to below 10 mN 0-peak. Finally, the DC and AC magnetic fields around the cooler were measured at various locations.
    Keywords: Engineering (General)
    Type: JPL-CL-16-5531 , International Cryocooler Conference (ICC19); Jun 20, 2016 - Jun 23, 2016; San Diego, CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
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