Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission

Heikki Saari, Antti Näsilä, Christer Holmlund, Rami Mannila, Ismo Näkki, Harri J. Ojanen, Didier Fussen, Didier Pieroux, Philippe Demoulin, Emmanuel Dekemper, Filip Vanhellemont

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    3 Citations (Scopus)

    Abstract

    PICASSO - A PICo-satellite for Atmospheric and Space Science Observations is an ESA project led by the Belgian Institute for Space Aeronomy, in collaboration with VTT, Clyde Space Ltd. (UK), and the Centre Spatial de Liège (BE). VTT Technical Research Centre of Finland Ltd. will deliver the Visible Spectral Imager for Occultation and Nightglow (VISION) for the PICASSO mission. The VISION targets primarily the observation of the Earth's atmospheric limb during orbital Sun occultation. By assessing the radiation absorption in the Chappuis band for different tangent altitudes, the vertical profile of the ozone is retrieved. A secondary objective is to measure the deformation of the solar disk so that stratospheric and mesospheric temperature profiles are retrieved by inversion of the refractive raytracing problem. Finally, occasional full spectral observations of polar auroras are also foreseen. The VISION design realized with commercial of the shelf (CoTS) parts is described. The VISION instrument is small, lightweight (~500 g), Piezo-actuated Fabry-Perot Interferometer (PFPI) tunable spectral imager operating in the visible and near-infrared (430 - 800 nm). The spectral resolution over the whole wavelength range will be better than 10 nm @ FWHM. VISION has is 2.5° x 2.5° total field of view and it delivers maximum 2048 x 2048 pixel spectral images. The sun image size is around 0.5° i.e. ~500 pixels. To enable fast spectral data image acquisition VISION can be operated with programmable image sizes. VTT has previously developed PFPI tunable filter based AaSI Spectral Imager for the Aalto-1 Finnish CubeSat. In VISION the requirements of the spectral resolution and stability are tighter than in AaSI. Therefore the optimization of the of the PFPI gap control loop for the operating temperature range and vacuum conditions has to be improved. VISION optical, mechanical and electrical design is described.
    Original languageEnglish
    Title of host publicationSensors, Systems, and Next-Generation Satellites XIX
    PublisherInternational Society for Optics and Photonics SPIE
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA4 Article in a conference publication
    EventSensors, Systems, and Next-Generation Satellites XIX - Toulouse, France
    Duration: 21 Sep 201524 Sep 2015

    Publication series

    SeriesProceedings of SPIE
    Volume9639

    Conference

    ConferenceSensors, Systems, and Next-Generation Satellites XIX
    Abbreviated titleSPIE REMOTE SENSING
    CountryFrance
    CityToulouse
    Period21/09/1524/09/15

    Fingerprint

    nightglow
    occultation
    Fabry-Perot interferometers
    sun
    spectral resolution
    pixels
    aeronomy
    radiation absorption
    auroras
    Finland
    tunable filters
    aerospace sciences
    limbs
    operating temperature
    European Space Agency
    shelves
    tangents
    temperature profiles
    ozone
    field of view

    Keywords

    • hyperspectral sensors
    • multispectral image sensors
    • Fabry-Perot Interferometer
    • Piezo actuators
    • imaging spectrometer
    • UAV
    • airborne
    • remote atmospheric sensing

    Cite this

    Saari, H., Näsilä, A., Holmlund, C., Mannila, R., Näkki, I., Ojanen, H. J., ... Vanhellemont, F. (2015). Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission. In Sensors, Systems, and Next-Generation Satellites XIX International Society for Optics and Photonics SPIE. Proceedings of SPIE, Vol.. 9639 https://doi.org/10.1117/12.2193557
    Saari, Heikki ; Näsilä, Antti ; Holmlund, Christer ; Mannila, Rami ; Näkki, Ismo ; Ojanen, Harri J. ; Fussen, Didier ; Pieroux, Didier ; Demoulin, Philippe ; Dekemper, Emmanuel ; Vanhellemont, Filip. / Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission. Sensors, Systems, and Next-Generation Satellites XIX. International Society for Optics and Photonics SPIE, 2015. (Proceedings of SPIE, Vol. 9639).
    @inproceedings{42e4485c4d4e4590b18de9f5607d6362,
    title = "Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission",
    abstract = "PICASSO - A PICo-satellite for Atmospheric and Space Science Observations is an ESA project led by the Belgian Institute for Space Aeronomy, in collaboration with VTT, Clyde Space Ltd. (UK), and the Centre Spatial de Li{\`e}ge (BE). VTT Technical Research Centre of Finland Ltd. will deliver the Visible Spectral Imager for Occultation and Nightglow (VISION) for the PICASSO mission. The VISION targets primarily the observation of the Earth's atmospheric limb during orbital Sun occultation. By assessing the radiation absorption in the Chappuis band for different tangent altitudes, the vertical profile of the ozone is retrieved. A secondary objective is to measure the deformation of the solar disk so that stratospheric and mesospheric temperature profiles are retrieved by inversion of the refractive raytracing problem. Finally, occasional full spectral observations of polar auroras are also foreseen. The VISION design realized with commercial of the shelf (CoTS) parts is described. The VISION instrument is small, lightweight (~500 g), Piezo-actuated Fabry-Perot Interferometer (PFPI) tunable spectral imager operating in the visible and near-infrared (430 - 800 nm). The spectral resolution over the whole wavelength range will be better than 10 nm @ FWHM. VISION has is 2.5° x 2.5° total field of view and it delivers maximum 2048 x 2048 pixel spectral images. The sun image size is around 0.5° i.e. ~500 pixels. To enable fast spectral data image acquisition VISION can be operated with programmable image sizes. VTT has previously developed PFPI tunable filter based AaSI Spectral Imager for the Aalto-1 Finnish CubeSat. In VISION the requirements of the spectral resolution and stability are tighter than in AaSI. Therefore the optimization of the of the PFPI gap control loop for the operating temperature range and vacuum conditions has to be improved. VISION optical, mechanical and electrical design is described.",
    keywords = "hyperspectral sensors, multispectral image sensors, Fabry-Perot Interferometer, Piezo actuators, imaging spectrometer, UAV, airborne, remote atmospheric sensing",
    author = "Heikki Saari and Antti N{\"a}sil{\"a} and Christer Holmlund and Rami Mannila and Ismo N{\"a}kki and Ojanen, {Harri J.} and Didier Fussen and Didier Pieroux and Philippe Demoulin and Emmanuel Dekemper and Filip Vanhellemont",
    year = "2015",
    doi = "10.1117/12.2193557",
    language = "English",
    series = "Proceedings of SPIE",
    publisher = "International Society for Optics and Photonics SPIE",
    booktitle = "Sensors, Systems, and Next-Generation Satellites XIX",
    address = "United States",

    }

    Saari, H, Näsilä, A, Holmlund, C, Mannila, R, Näkki, I, Ojanen, HJ, Fussen, D, Pieroux, D, Demoulin, P, Dekemper, E & Vanhellemont, F 2015, Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission. in Sensors, Systems, and Next-Generation Satellites XIX. International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 9639, Sensors, Systems, and Next-Generation Satellites XIX, Toulouse, France, 21/09/15. https://doi.org/10.1117/12.2193557

    Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission. / Saari, Heikki; Näsilä, Antti; Holmlund, Christer; Mannila, Rami; Näkki, Ismo; Ojanen, Harri J.; Fussen, Didier; Pieroux, Didier; Demoulin, Philippe; Dekemper, Emmanuel; Vanhellemont, Filip.

    Sensors, Systems, and Next-Generation Satellites XIX. International Society for Optics and Photonics SPIE, 2015. (Proceedings of SPIE, Vol. 9639).

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    TY - GEN

    T1 - Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission

    AU - Saari, Heikki

    AU - Näsilä, Antti

    AU - Holmlund, Christer

    AU - Mannila, Rami

    AU - Näkki, Ismo

    AU - Ojanen, Harri J.

    AU - Fussen, Didier

    AU - Pieroux, Didier

    AU - Demoulin, Philippe

    AU - Dekemper, Emmanuel

    AU - Vanhellemont, Filip

    PY - 2015

    Y1 - 2015

    N2 - PICASSO - A PICo-satellite for Atmospheric and Space Science Observations is an ESA project led by the Belgian Institute for Space Aeronomy, in collaboration with VTT, Clyde Space Ltd. (UK), and the Centre Spatial de Liège (BE). VTT Technical Research Centre of Finland Ltd. will deliver the Visible Spectral Imager for Occultation and Nightglow (VISION) for the PICASSO mission. The VISION targets primarily the observation of the Earth's atmospheric limb during orbital Sun occultation. By assessing the radiation absorption in the Chappuis band for different tangent altitudes, the vertical profile of the ozone is retrieved. A secondary objective is to measure the deformation of the solar disk so that stratospheric and mesospheric temperature profiles are retrieved by inversion of the refractive raytracing problem. Finally, occasional full spectral observations of polar auroras are also foreseen. The VISION design realized with commercial of the shelf (CoTS) parts is described. The VISION instrument is small, lightweight (~500 g), Piezo-actuated Fabry-Perot Interferometer (PFPI) tunable spectral imager operating in the visible and near-infrared (430 - 800 nm). The spectral resolution over the whole wavelength range will be better than 10 nm @ FWHM. VISION has is 2.5° x 2.5° total field of view and it delivers maximum 2048 x 2048 pixel spectral images. The sun image size is around 0.5° i.e. ~500 pixels. To enable fast spectral data image acquisition VISION can be operated with programmable image sizes. VTT has previously developed PFPI tunable filter based AaSI Spectral Imager for the Aalto-1 Finnish CubeSat. In VISION the requirements of the spectral resolution and stability are tighter than in AaSI. Therefore the optimization of the of the PFPI gap control loop for the operating temperature range and vacuum conditions has to be improved. VISION optical, mechanical and electrical design is described.

    AB - PICASSO - A PICo-satellite for Atmospheric and Space Science Observations is an ESA project led by the Belgian Institute for Space Aeronomy, in collaboration with VTT, Clyde Space Ltd. (UK), and the Centre Spatial de Liège (BE). VTT Technical Research Centre of Finland Ltd. will deliver the Visible Spectral Imager for Occultation and Nightglow (VISION) for the PICASSO mission. The VISION targets primarily the observation of the Earth's atmospheric limb during orbital Sun occultation. By assessing the radiation absorption in the Chappuis band for different tangent altitudes, the vertical profile of the ozone is retrieved. A secondary objective is to measure the deformation of the solar disk so that stratospheric and mesospheric temperature profiles are retrieved by inversion of the refractive raytracing problem. Finally, occasional full spectral observations of polar auroras are also foreseen. The VISION design realized with commercial of the shelf (CoTS) parts is described. The VISION instrument is small, lightweight (~500 g), Piezo-actuated Fabry-Perot Interferometer (PFPI) tunable spectral imager operating in the visible and near-infrared (430 - 800 nm). The spectral resolution over the whole wavelength range will be better than 10 nm @ FWHM. VISION has is 2.5° x 2.5° total field of view and it delivers maximum 2048 x 2048 pixel spectral images. The sun image size is around 0.5° i.e. ~500 pixels. To enable fast spectral data image acquisition VISION can be operated with programmable image sizes. VTT has previously developed PFPI tunable filter based AaSI Spectral Imager for the Aalto-1 Finnish CubeSat. In VISION the requirements of the spectral resolution and stability are tighter than in AaSI. Therefore the optimization of the of the PFPI gap control loop for the operating temperature range and vacuum conditions has to be improved. VISION optical, mechanical and electrical design is described.

    KW - hyperspectral sensors

    KW - multispectral image sensors

    KW - Fabry-Perot Interferometer

    KW - Piezo actuators

    KW - imaging spectrometer

    KW - UAV

    KW - airborne

    KW - remote atmospheric sensing

    U2 - 10.1117/12.2193557

    DO - 10.1117/12.2193557

    M3 - Conference article in proceedings

    T3 - Proceedings of SPIE

    BT - Sensors, Systems, and Next-Generation Satellites XIX

    PB - International Society for Optics and Photonics SPIE

    ER -

    Saari H, Näsilä A, Holmlund C, Mannila R, Näkki I, Ojanen HJ et al. Visible spectral imager for occultation and nightglow (VISION) for the PICASSO Mission. In Sensors, Systems, and Next-Generation Satellites XIX. International Society for Optics and Photonics SPIE. 2015. (Proceedings of SPIE, Vol. 9639). https://doi.org/10.1117/12.2193557