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

2 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

NameProceedings 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