ESAESA Lokale Informatie België
   
Diensten
KalenderRSS feedsTwitter Aanmelden
 
 
 
Bookmark and Share
 
 
 
 
Microsatelliet Proba 2 neemt stormachtige zon waar
 
9 januari 2011

An approximately four-week-long rotation of the Sun, as seen by the SWAP imager on ESA's Proba-2 microsatellite. The rotation is 'approximate' because, as a ball of plasma, different latitudes and layers of the Sun rotate at different rates. Victorian astronomer Richard Carrington developed a system for tracking solar features known as the 'Carrington rotation', which arrives at an approximately 27-day periodicity for solar features - those features nearer the equator rotating faster than those at the poles.

Credits: ROB/ESA
 
  Kleine afmetingen, grote resultaten
 
Proba-2
Download:
 HI-RES JPEG (Size: 1653 kb)
Small satellite technology demonstrator Proba-2 went into orbit on 2 November 2009.

Credits: ESA
 
  Gegevens wereldwijd gebruikt
 
Proba-2 instruments
Download:
 HI-RES BMP (Size: 1471 kb)
The DSLP (Dual Segmented Langmuir Probe) instrument on board the Proba-2 spacecraft at QinetiQ Space's (then Verhaert's) cleanroom facility in Kruibeke, Belgium. The two segmented Langmuir probe sensors SLPA and SLPB (see details in the left hand frames) are mounted in one of the deployable solar panels. Amplified signals measured on the sensors are led by the white-coloured harness into the DPU (digital processing unit, detailed view in the right frame) which is accomodated on the main platform inside the body of the satellite.

The DSLP is one of the four scientific experiments on board the ESA microsatellite Proba-2. The DSLP instrument has been developed and manufactured in the Czech Republic by a scientific-industrial consortium within the ESA PECS/PRODEX program. The consortium is led by the Astronomical Institute (Academy of Sciences of the Czech Republic) with technological and industrial support provided by the Research and Scientific Support Department of ESTEC/ESA (Noordwijk, Holland) and the Czech Space Research Center company (Brno, Czech Republic). As a part of the Plasma Measurement Equipment, the DSLP instrument will aim at studying characteristic macroscopic properties (e.g. density, temperature or flow dynamics) of ionospheric plasmas and, with use of SWAP and LYRA observations, try to identify observed irregularities with possible solar-terrestrial connection related to sudden space weather events. A comprehensive knowledge of the ionospheric environment is important from many not solely scientific aspects. Intense solar events cause massive geomagnetic storms that represent possible risk of damage for communication and navigation satellite systems, ground electric grids and pipelines, or even radiation hazards for humans. Detailed study of ionospheric processes and their space weather relations thus becomes an considerable issue in current space research activities.

Credits: ESA/Academy of Sciences of the Czech Republic

 
 
Comet beside Sun
Download:
 HI-RES JPEG (Size: 25 kb)
Comet Lovejoy seen as a faint line amid the solar corona (indicated by an arrow) by Proba-2's SWAP, as it reappears from behind the Sun on 16 December 2011

Credits: ROB/ESA
 
  Wetenschappelijke bonus
 
Proba-2 in the cleanroom at Verhaert Space shortly before shipme
Download:
 HI-RES JPEG (Size: 643 kb)
This image shows the Proba-2 satellite in the cleanroom at Verhaert Space in Kruibeke/Belgium. Proba stands for PRoject for OnBoard Autonomy. The Proba satellites are among the smallest spacecraft ever to be flown by ESA, but they are making a big impact in the field of space technology. Proba-2 is the second of the series, building on nearly eight years of successful Proba-1 experience. Like Proba-1 before it, Proba-2 was constructed for ESA by Verhaert Design & Development in the East Flanders town of Kruibeke, with the support of the Belgian Federal Science Policy Office.

Credits: ESA - A. Le Floc'h, 2009
 
  Autonoom
 
Download:
 HI-RES MP4 (Size: 6860 kb)  HI_RES WM (Size: 3466)
This is Proba-2's detailed view of an extraordinary event on 7 June 2011 where a massive amount of dark, cool plasma was blown away from the solar surface then fell back down on the Sun. Proba-2's SWAP telescope (Sun Watcher using Active Pixel System detector and Image Processing)provides images of the solar corona at a temperature of roughly one million degrees, acquiring a new image every 1-2 minutes, with a field of view (FOV) of 54 arcmin.

Credits: ESA/ROB
 
 
Proba
Proba-2: science payloadsProba-2: technology demonstrationsProba-2 fuel tank refilled from ‘solid gas’
Achtergrond
European Space Weather Week 2011ROB Proba-2 science centreProba-2 DSLP data archive at Czech Astronomical InstituteProba-2 TPMU data archive at Czech Insitute of Atmospheric PhysicsKoninklijke Sterrenwacht van België
In het Nederlands
Zonnesatelliet Proba 2 knipoogt naar de aardeTechnologische satelliet Proba 2 levert een nieuwe kijk op de zonEerste onthullingen van resultaten Proba-2Het Proba-2 platform ziet sterren en slaagt voor zijn eerste gezondheidstestTwee nieuwe ESA-satellieten met succes in een baan om de aarde gebrachtCountdown voor made in Belgium satelliet Proba 2Proba 2 arriveert op Russische kosmodroomProba 2 via Rusland
naar de ruimte
 
 
 
   Copyright 2000 - 2012 © European Space Agency. All rights reserved.