1 / 3

Institutes Royal Observatory of Belgium (Brussels, BE)

LYRA the Large Yield RAdiometer. 1/3 Introduction. PRODEX. Measurement: Solar irradiance in four UV to XUV channels: “Herzberg”, “Lyman-alpha”, “Aluminum”, “Zirconium” Science: Solar flares, space weather services, aeronomy (atmospheric occultations & input to climate models)

fala
Télécharger la présentation

Institutes Royal Observatory of Belgium (Brussels, BE)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LYRAthe Large Yield RAdiometer 1/3Introduction PRODEX • Measurement: Solar irradiance in four UV to XUV channels:“Herzberg”, “Lyman-alpha”, “Aluminum”, “Zirconium” • Science:Solar flares, space weather services, aeronomy (atmospheric occultations & input to climate models) • Technological First: diamond UV detectors for astrophysics • And also:high cadence (> 20Hz), 3 redundant units, 24 LEDs, synchrotron calibration Exploded view of one of the 3 identical LYRA units A diamond detector Calibrating LYRA at the Berlin synchrotron Institutes • Royal Observatory of Belgium (Brussels, BE) • Principal Investigator, overall design, onboard software specification, science operations • PMOD/WRC (Davos, CH) • Lead Co-Investigator, overall design and manufacture • Centre Spatial de Liège (BE) • Lead institute, project management, filters • IMOMEC (Hasselt, BE) • Diamond detectors • Max-Planck-Institut für Sonnensystemforschung (Lindau DE) • Calibration • science Co-Is: BISA (Brussels, BE), LPC2E (Orléans, FR)… LYRA integrated on PROBA2

  2. LYRAthe Large Yield Radiometer 2/3First Light & lunar eclipse • 2 Nov. 2009: PROBA2 launch • 16 Nov. 2009: 1st LYRA “Switch On” • Dec. 2009: dark and LED data • 5 & 6 Jan. 2010: unlock all 3 covers • 6 Jan. 2010: First Light for all 3 units • All 12 channels work. • 11 Jan. 2010: LYRA 1st flare • 15 Jan. 2010: lunar eclipse The ‘South Atlantic Anomaly’ perturbing only LYRA silicon detectors, not diamond  LYRA with Unit 2 opened solar flares Regular terrestrial occultations (eclipse season in Jan. 2010) Lunar eclipse of Jan. 15th Blow-up on the data (all 4 channels) during the lunar eclipse of 15 Jan. 2010. The Sun is less homogeneous in XUV than in UV! 14 Jan 2010 18 Jan 2010 4 days of LYRA data in its EUV channels

  3. LYRAthe Large Yield Radiometer 3/3First results M1.8 flare of 20/01/2010 10:48 by LYRA and GOES Successive sunsets and sunrises for all four channels (17 Jan. 2010) ~120 km ~360 km ~160 km ~410 km ~120 km ~220 km Onset of the flare Peak of the flare EUV fluxes (LYRA) grow faster than X-Rays (GOES) EUV fluxes (LYRA) peak after X-Rays (GOES) Earth Scientists will make useful and exciting science with LYRA data

More Related