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Processes of Relaxation in the Ultraviolet Band Spectrum by High Velocity Interaction of Exhaust Products on ISS (Relaksatia)
04.26.13

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Overview | Description | Applications | Operations | Results | Publications | Imagery

Experiment Overview

This content was provided by N. A. Anfimov, Ph.D., and is maintained in a database by the ISS Program Science Office.

Brief Summary

Relaksatsiya (Relaxation) makes UV spectrometer observations of the chemiluminescent reactions in the Xenon plasma from firings of the two PCUs (plasma contactor units) installed on the U.S. Z1 truss.

Principal Investigator(s)

  • N. A. Anfimov, Ph.D., Russia

    • Co-Investigator(s)/Collaborator(s)

    Information Pending

    Developer(s)
    Information Pending

    Sponsoring Space Agency

    Russian Federal Space Agency (Roscosmos)

    Sponsoring Organization

    Information Pending

    Research Benefits

    Information Pending

    ISS Expedition Duration:

    December 2001 - September 2011

    Expeditions Assigned

    4,5,6,8,9,10,11,12,13,15,16,17,18,19/20,21/22,23/24,25/26,27/28

    Previous ISS Missions

    Information Pending

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    Experiment Description

    Research Overview

    Information Pending

    Description

    Investigation of chemiluminescent chemical reactions and atmospheric optical phenomena occurring during high-speed interaction between jet engine exhausts and the Earth's upper atmosphere, atmospheric optical phenomena during re-entry of bodies into rarified upper atmosphere and its optical properties in the UV range.

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    Applications

    Space Applications

    Information Pending

    Earth Applications

    Information Pending

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    Operations

    Operational Requirements

    UV camera, Spectrometer, Video camera, set of interference filters.

    Operational Protocols

    Conducting radiometric and spectrometric measurements in the UV range: Radiation emitted in reactions of interaction between ISS RS propulsion system exhaust products and atomic oxygen; Radiation emitted in reactions of interaction of Soyuz and Progress propulsion system exhaust products during undocking maneuvers, retroburns and re-entry into the Earth's upper atmosphere; Spacial distribution and emission spectra of atmospheric formations and phenomena.

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    Results/More Information

    Determining the effects of propulsion system exhausts on the Earth's upper atmosphere and ISS environment on optically sensitive surfaces (windows, equipment lenses, solar array panels). In perspective, simulation of atmospheric optical phenomena in ultra-violet, visible and near-infrared spectral bands (Earth atmosphere nightglow, SC re-entry glow, planetary atmospheric glow).

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    Results Publications

      Plastinin YA, Karabadzhak GF, Khmelinin BA.  Remote Measurement of the atomic oxygen distribution in Earth atmosphere from International Space Station. 46th Aerospace Sciences Meeting and Exhibit, Reno, NV; 2008

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    Ground Based Results Publications

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    ISS Patents

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    Related Publications

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    Related Websites
  • Coordinating Scientific and Technical Council of the Russian Space Agency [Russian]
  • Energia - Science Research on the ISS Russian Segment

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    Imagery

    image Fialka-MV-Kosmos multispectral UV system.
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    Information provided by the investigation team to the ISS Program Scientist's Office.
    If updates are needed to the summary please contact JSC-ISS-Program-Science-Group. For other general questions regarding space station research and technology, please feel free to call our help line at 281-244-6187 or e-mail at JSC-ISS-Research-Helpline.
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