Swap And Lyra Space Weather From A Small Spacecraft

• doi: 10.1109/RAST.2005.1512688
• title: SWAP and LYRA: space weather from a small spacecraft
• publisher: IEEE
• isbn: 0-7803-8977-8
• issn:
• partnum: 05EX1011
• rank: 3495
• access_type: LOCKED
• content_type: Conferences
• abstract: Two scientific instruments for Sun observations are being developed to be part of the payload of the ESA's second microsatellite, Proba-II (Project for On-board Autonomy). PROBA-2 is scheduled for launch in early 2007, on a low Earth orbit. Like Proba-1, in orbit since October 2001, Proba-2 is a 100-kilogram class spacecraft. PROBA-II will demonstrate new advanced technologies on its scientific payload but also on new platform subsystems such as star tracker, digital Sun sensor, cool gas generator, solar array concentrator, Li-Ion Battery, new central processor. This paper is dedicated to the solar payload, comprising the Sun Watcher using Active Pixel System detector and image Processing (SWAP) and the Lyman alpha Radiometer (LYRA), both aiming at Sun observations. SWAP, the Belgian-led main instrument, will continuously provide detailed images of the solar atmosphere, by the light of extreme ultraviolet rays, at 17.4 nm, completely absorbed by the terrestrial atmosphere. SWAP will perform as an operational solar monitoring tool for space weather forecasting while it will also demonstrate new technological solutions: CMOS/APS detector, new off-axis telescope design, a thermal structure. LYRA (LYman-alpha RAdiometer) is a small compact solar VUV radiometer. This instrument is designed, manufactured and calibrated by a Belgian-Swiss-German consortium. It will monitor the solar flux in four UV passbands. The spectral channels have been carefully selected for their relevance to space weather, solar physics and aeronomy, ranging from 1 nm to 220 nm. On the technological side, LYRA will benefit from the pioneering UV detectors program using diamond technology. The LYRA data will produce valuable solar monitoring information, for operational space weather nowcasting and research. This paper will detail the instrument concepts and their preparation for delivery to the platform.
• article_number: 1512688
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1512688
• html_url: https://ieeexplore.ieee.org/document/1512688/
• abstract_url: https://ieeexplore.ieee.org/document/1512688/
• publication_title: Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.
• conference_location: Istanbul, Turkey
• conference_dates: 9-11 June 2005
• publication_number: 10107
• is_number: 32390
• publication_year: 2005
• publication_date: 9-11 June 2005
• start_page: 793
• end_page: 798
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 128
• insert_date: 20051003
• index_terms:
  • ieee_terms:
    • Space vehicles
    • Space technology
    • Instruments
    • Sun
    • Payloads
    • Sensor arrays
    • Detectors
    • Radiometry
    • Monitoring
    • CMOS technology
  • dynamic_index_terms:
    • Space Weather
    • Small Spacecraft
    • Low Earth Orbit
    • Low Earth Orbit Satellite
    • Spectral Channels
    • Extreme Ultraviolet
    • Solar Array
    • Operational Weather
    • Principal Investigator
    • Primary Investigator
    • Co-investigators
    • Focal Plane
    • Back Focal Plane
    • Cadence
    • Scientific Objectives
    • Electromagnetic Compatibility
    • Coronal Mass Ejections
    • Solar Observations
    • Solar Corona
    • Optical Bench
• isbn_formats:
  • format: Print ISBN, value: 0-7803-8977-8, isbnType: Historical
• authors:
  • Author Name: J.M. Defise
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37550481200
    ID: 37550481200
    Order: 1
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: J.H. Lecat
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605257
    ID: 37088605257
    Order: 2
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: Y. Stockman
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605141
    ID: 37088605141
    Order: 3
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: P. Rochus
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37550479700
    ID: 37550479700
    Order: 4
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: E. Mazy
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605186
    ID: 37088605186
    Order: 5
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: F. Denis
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605190
    ID: 37088605190
    Order: 6
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: J.P. Halain
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605316
    ID: 37088605316
    Order: 7
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: L. Rossi
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605075
    ID: 37088605075
    Order: 8
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: T. Thibert
    Affiliation: Centre Spatial de Liege (CSL), University of Liège, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37550485800
    ID: 37550485800
    Order: 9
    Author Affiliations:
    • Centre Spatial de Liege (CSL), University of Liège, Belgium
  • Author Name: D. Berghmans
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605109
    ID: 37088605109
    Order: 10
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: J.F. Hochedez
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37550483300
    ID: 37550483300
    Order: 11
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: N. Bogdan
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605118
    ID: 37088605118
    Order: 12
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: A. Ben Moussa
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605056
    ID: 37088605056
    Order: 13
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: G. Lawrence
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605198
    ID: 37088605198
    Order: 14
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: T. Katsiyannis
    Affiliation: Royal Observatory of Belgium, Brussels, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605337
    ID: 37088605337
    Order: 15
    Author Affiliations:
    • Royal Observatory of Belgium, Brussels, Belgium
  • Author Name: W. Schmutz
    Affiliation: Physikalisch-Meteorologisches Observatorium Davos, Switzerland
    Author URL: https://ieeexplore.ieee.org/author/37088605349
    ID: 37088605349
    Order: 16
    Author Affiliations:
    • Physikalisch-Meteorologisches Observatorium Davos, Switzerland
  • Author Name: S. Koller
    Affiliation: Physikalisch-Meteorologisches Observatorium Davos, Switzerland
    Author URL: https://ieeexplore.ieee.org/author/37088605024
    ID: 37088605024
    Order: 17
    Author Affiliations:
    • Physikalisch-Meteorologisches Observatorium Davos, Switzerland
  • Author Name: U. Schuhle
    Affiliation: Max-Planck-Institut für SonnenSystemforschung, Lindau, Germany
    Author URL: https://ieeexplore.ieee.org/author/37313592600
    ID: 37313592600
    Order: 18
    Author Affiliations:
    • Max-Planck-Institut für SonnenSystemforschung, Lindau, Germany
  • Author Name: K. Haenen
    Affiliation: IMOMEC-Diepenbeek, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605153
    ID: 37088605153
    Order: 19
    Author Affiliations:
    • IMOMEC-Diepenbeek, Belgium
  • Author Name: P. Gloesener
    Affiliation: AMOS SA, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605151
    ID: 37088605151
    Order: 20
    Author Affiliations:
    • AMOS SA, Belgium
  • Author Name: V. Thomas
    Affiliation: AMOS SA, Belgium
    Author URL: https://ieeexplore.ieee.org/author/37088605105
    ID: 37088605105
    Order: 21
    Author Affiliations:
    • AMOS SA, Belgium

Image Sensor

• sensor_type: CMOS APS
• resolution: Not explicitly stated
• dynamic_range: Not explicitly stated
• pixel_size: Not explicitly stated
• dark_current: Not specified, but mentioned as managed due to cooling techniques.

Optical Data

• focal_length: Not discussed
• aperture: Not discussed
• field_of_view: 54 arcmin (wider than EIT's 45 arcmin)
• distortion: Not specified

Performance Metrics

• frame_rate: Not explicitly stated, but SWAP has 1 minute time cadence for imaging.
• signal_to_noise_ratio: Not explicitly stated
• sensitivity: Not discussed directly, passive cooling to -20°C mentioned for contaminant control.
• shutter_speed: Not specified, but refers to operational capability with temporal resolution
• power_consumption: < 5 W for SWAP, 2.7 W for LYRA.
• noise: Contaminants managed to minimize noise, specific noise measurements not detailed.

Applications & Benefits

• cell_imaging: Not specifically stated but relevant as a part of space weather monitoring and scientific research.
• benefits: Provides valuable solar monitoring information, supports space weather forecasting efforts.

Supporting Organizations

• supported_by: Belgian Federal Science Policy Office (BELSPO), Swiss Space Office (SSO), ESA, and relevant contributors from Germany.

Manuscript Details

• publication_date: 9-11 June 2005

Relevancy Score

• score: 8
• missing_fields:
  • resolution
  • dynamic_range
  • focal_length
  • aperture
  • dark_current
  • signal_to_noise_ratio
  • readout_speed
  • noise_sources
  • analog_to_digital_conversion_techniques
  • microlenses
  • on_chip_colour_filters
  • global_or_rolling_shutters
  • backside_illumination

Processed JSON Filename

request_221e9b0f-9428-4e95-a968-cd0ee54992c1-swap_and_lyra_space_weather_from_a_small_spacecraft.json