Presentations, Reports, Data Files
Presentations
LYRA
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LYRA Tests and Calibration
(LYRA Meeting, Davos, 05-06 Oct 2006)
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LYRA Tests and Selections
LYRA Response and Calibration
(SCSL2 Meeting, Bern, 29 Nov - 01 Dec 2006)
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LYRA Detectors: Configuration and Tests
LYRA Detectors: Response and Calibration
(GSP Meeting, Brussels, 09 Jan 2007, not presented)
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LYRA Calibration: Ongoing Efforts and Problems
(SCSL3 Meeting, Bern, 18-19 Apr 2007)
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LYRA Calibration
(DRB Meeting, ESTEC, 15 Jun 2007, not presented)
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Current Developments in LYRA Calibration
(SCSL4 Meeting, Brussels, 05 Nov 2007)
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Upcoming LYRA Science Data Products
(Poster for ESWW5, Brussels, Nov 2008)
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LYRA Science Data Products Forthcoming
(Poster for SOHO22, Bournemouth, Apr 2009)
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More PROBA2 Science Data Products
(Poster for ESWW6, Brugge, Nov 2009)
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LYRA Calibration, Data Products, and FITS Files
(LYRA SWT/CESRA, La Roche, Jun 2010)
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First Results from the LYRA Solar UV Radiometer
(COSPAR/TIGER, Bremen, Jul 2010)
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Solar Irradiance Observations with LYRA on PROBA2
(10th Astrophysical Colloquium, Hvar/Croatia, 10 Sep 2010)
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LYRA data: getting them and exploiting them
(Soteria CBW, ROB/Brussels, 15 Feb 2011)
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Overview of LYRA Calibration up to now
(SCSL/PROBA2 Science Meeting, ROB/Brussels, 18 Feb 2011)
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LYRA Calibration, Data Products, Plans
(SCSL/PROBA2 Science Meeting, Sun360, Kiel/Germany, Jul 2011
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LYRA Calibration, Data Products, Cross-Calibration
(EUV Irradiance Workshop, LASP, Boulder/Colorado, Oct 2011)
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Components of soft x-ray and extreme ultraviolet in flares observed by LYRA on PROBA2 (I) |
(II)
(Poster for ESWW8, Namur, Nov 2011)
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Components of soft x-ray and extreme ultraviolet in flares observed by LYRA on PROBA2
(SCSL/PROBA2 Splinter, ESWW8, Namur, Nov 2011)
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Degradation of LYRA on PROBA2 after two years inorbit
(STCE Workshop, Brussels, May 2012)
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Thermal evolution of flares observed by PROBA2/LYRA
(COSPAR/TIGER, Mysore/India, Jul 2012)
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Two years of solar observation with PROBA2/LYRA: An overview
(12th Astrophysical Colloquium, Hvar/Croatia, Sep 2012)
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Space weather data and services at ROB/SIDC
(Solar and Heliospheric Influences on the Geospace, Bucharest/Romania, Oct 2012)
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Flares observed by LYRA on PROBA2
(Solar and Heliospheric Influences on the Geospace, Bucharest/Romania, Oct 2012)
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Correlation between sunspot numbers and EUV irradiance as observed by LYRA on PROBA2
(Poster for ESWW9, Brussels, Nov 2012)
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LYRA calibration using TIMED and SORCE
(Solar EUV Irradiance Working Group, Brussels, Apr 2013)
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LYRA calibration status
(PROBA2 SWT Meeting, Brussels, Jun 2013)
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Correlation between sunspot data and EUV irradiance as observed by LYRA on PROBA2
(ROB/SIDC Seminar, Brussels, Jul 2013)
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Correlation of solar flares with long-term irradiance and sunspot levels
(Poster for ESWW10, Antwerp, Nov 2013)
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The LYRA radiometer onboard PROBA2 as a detector of solar flares
(Poster for ESWW10, Antwerp, Nov 2013)
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Progress towards understanding the degradation and performance characteristics of the PROBA2-LYRA instrument
(Poster for AGU Fall meeting, San Francisco, Dec 2013)
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Sonnenforschung und Weltraumwetter
(Rotary Club, Cuxhaven/Germany, Feb 2014)
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Prediction of solar flares on the basis of correlation with long-term irradiance and sunspot levels
(SIDC Seminar, Brussels, Mar 2014)
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LYRA calibration considering the evolution of dark currents
(Solar EUV Irradiance Working Group, Brussels, Jun 2014)
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Long-term irradiance observation and short-term flare prediction with LYRA on PROBA2
(COSPAR 40th Scientific Assembly, Moscow, Aug 2014)
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Space climate and space weather observations with PROBA2/LYRA
(13th Astrophysical Colloquium, Hvar/Croatia, Sep 2014)
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Five Years of EUV solar irradiance evolution, from short to long timescales as observed by PROBA2/LYRA
(ESWW11, Liege, Nov 2014)
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In situ detections of Space Weather by the LYRA radiometer on board the PROBA2 satellite
(Poster for ESWW11, Liege, Nov 2014)
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Long-term variability of LYRA data
(Solar Metrology Needs and Methods II, Brussels, Sep 2015)
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SOHO/SUMER - Results and lessons learned
(EUI Consortium Meeting, Brussels, 26 Apr 2016)
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Rescaled PROBA2/LYRA data used as GOES X-ray flux proxy
(XIVth Hvar Astrophysical Colloquium, Hvar/Croatia, 26-30 Sep 2016)
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Rescaled PROBA2/LYRA data used as GOES X-ray flux proxy
(Poster for 13th European Space Weather Week, Oostende/Belgium, 14-18 Nov 2016)
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LYRA Mid-Term Periodicities
(Poster for 13th European Space Weather Week, Oostende/Belgium, 14-18 Nov 2016)
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In situ detections of Space Weather by the LYRA radiometer on board the PROBA2 satellite
(Poster for 13th European Space Weather Week, Oostende/Belgium, 14-18 Nov 2016)
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LYRA status update
(Proba2 SWT meeting, 13th European Space Weather Week, Oostende/Belgium, 14-18 Nov 2016)
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Multi-instrument observations of an X9.3 flare
(Poster for 14th European Space Weather Week, Oostende/Belgium, 27Nov-01Dec 2017)
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LYRA status update
(Proba2 SWT meeting, 14th European Space Weather Week, Oostende/Belgium, 27Nov-01Dec 2017)
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PROBA2/LYRA soft x-ray response after ten years in space
(Solar EUV Irradiance Workshop, STCE/ROB, Brussels/Belgium, 14-18 Oct 2019)
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PROBA2/LYRA soft x-ray response after ten years in space
(Poster for 16th European Space Weather Week, Liege/Belgium, 18-22 Nov 2019)
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Monitoring space weather with PROBA2/LYRA after 12 years in space
(Poster for 18th European Space Weather Week, Zagreb/Croatia, 24-28 Oct 2022)
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The performance of PROBA2/LYRA
(Dep4 Seminar, Royal Observatory of Belgium, Brussels, 27 Sep 2023)
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LYRA on PROBA2 - An Introduction
(for Guest Investigators at ROB/Brussels)
SUMER
LYRA Reports
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LYRA Opto-Mechanical properties
(Silvio Koller 06 Feb 2004)
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Flaechenmessung der LYRA-Blenden
(C.Walther PMOD/WRC Apr-Jun 2005)
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LYRA Assembly FM Logbook
(PMOD/WRC 27 Jul 2005)
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Calibration Report GI Beamline (1-30 nm) July 2005
(Ali BenMoussa 07 Sep 2005)
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Calibration Report NI Beamline (40-240 nm) July 2005
(Ali BenMoussa 01 Sep 2005)
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Davos Sun Measurements
(PMOD/WRC 07 Apr 2006)
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Pre-analysis Report GI Beamline (1-30 nm) March 2006
(Ali BenMoussa 09 May 2006)
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Pre-analysis Report NI Beamline (40-240 nm) March 2006
(Ali BenMoussa 30 May 2006)
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LYRA Data Level Working Document
(Matthieu Kretzschmar 04 Dec 2006)
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Description Voltage-to-Frequency Converter
(Analog Devices Inc (c) 2000)
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LYRA Functional Tests Thermal Vacuum
(Silvio Koller 29 Jun 2009)
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LYRA Data Processing: Data Levels
(IED 16 Aug 2006)
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LYRA Flatfield Software: Relative Output as Function of Pointing
(IED 17 Aug 2006, revised 26 Apr 2007)
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LYRA Radiometric Model Simulations: Report
(IED 18 Aug 2006)
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LYRA Signal Stability: Report
(IED 20 Sep 2006, revised 16 Nov 2006, revised 04 Dec 2006)
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LYRA Calibration Software: First Attempt |
LYRA Calibration Software
(IED 25 Oct 2006, revised 21 Sep 2007, merged into "Calibration Methods")
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LYRA Pulsed LED Tests: Data Analysis
(IED 14 Feb 2007, revised 06 Mar 2007)
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LYRA Detectors Positions, Flatfields, Consequences
(IED 20 Mar 2007, revised 21 Nov 2007, merged into "Responsivity
Update")
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LYRA Noise Distribution: Report
(IED 14 May 2007)
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LYRA Responsivity Measurements: BESSY NI March 2007 Updates
(IED 03 Oct 2007, revised 16 Oct 2007, merged into "Responsivity
Update")
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Spectra, Detector, and Filter Files used for LYRA Radiometric Model
Simulations
(IED 30 Nov 2007)
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LYRA Dark Current and LED Measurements
(IED 14 Dec 2007)
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LYRA Responsivity: Update
(IED 15 Jan 2008, in progress)
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LYRA Calibration Methods |
LYRA Calibration Methods: New Spectra |
LYRA Calibration Methods: New Channels
(IED 07 Apr 2008, revised 18 Jul 2008, revised 16 Jun 2009)
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LYRA Output: Expected Variations |
LYRA Output: Expected Variations (rev.) |
LYRA Output: Expected Variations (Update) |
(IED 16 Apr 2008, revised 21 Oct 2008, revised 30 Jul 2009)
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Linearity of LYRA Channels for Expected Solar Variations
(IED 10 Jul 2008, in progress)
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Introduction to LYRA FITS Files, incl. 1 Example
(IED 03 Aug 2009)
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LYRA Calibration: Risks and Chances, "Executive Summary"
(IED 10 Aug 2009)
- LYRA - the first three months.
Data analysis during the commissioning phase
Part I |
Part II
(IED 26 Jan 2010)
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LYRA Dark Currents (Update) |
LYRA Dark Currents above 50degC
(IED 02 Dec 2010, revised 08 Feb 2011)
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LYRA Degradation Estimate: Update Dec2010 |
Update May2011 |
Update Dec2011
(IED 03 Dec 2010, revised 19 May 2011, revised 20 Dec 2011)
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LYRA Calibration now based on First Light Day
(IED 26 Feb 2011)
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Towards Cross-Calibration of SWAP, LYRA, TIMED/SEE, EVE
IED 28 Jun 2011
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Separate SXR and EUV Contributions in LYRA Channels 3 and 4
IED 09 Aug 2011, revised 18 Aug 2011
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Estimating GOES Flare Peaks from LYRA Data
IED 22 Sep 2011
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LYRA Degradation Report: Update Dec 2012
IED 18 Dec 2012
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Estimation of Degradation Curves for LYRA Unit 2
IED 25 Apr 2013
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Correlation of flares with long-term irradiance and sunspot levels
IED 24 May 2013
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Speculations about the "real" strength of Lyman-alpha flare signatures
IED 07 Jun 2013
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Thermal-component analysis of flare series
IED 01 Aug 2013
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Thermal-component analysis of two flares
IED 05 Dec 2013
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LYRA status after 1500 days
IED 06 Oct 2014
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Correction of occultation patterns based on tangential altitude
IED 18 Dec 2014
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LYRA and the eclipse of 20 March 2015
IED 24 Mar 2015
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"Cleaning" the early Lyman-alpha channel 2-1 from artefacts
IED 11 May 2015
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Evolution of dark currents in LYRA detectors
IED 07 Mar 2016
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Flare watch with all three LYRA units 29 Mar - 05 Apr 2017
IED 06 Jul 2017
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Evolution of dark currents in LYRA detectors - Update
IED 19 Jan 2018
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LYRA degradation status after ~3000 days
IED 23 Feb 2018
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Evolution of dark currents in LYRA detectors - Update due to a new campaign
IED 17 Aug 2018
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LYRA flare strengths over time
IED 30 Jul 2019
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Evolution of dark currents in LYRA detectors - Update 2019/2020
IED 04 Jun 2020
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LYRA degradation status after ~4000 days
IED 24 Nov 2020
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Correction of occultation patterns - Update
IED 16 Mar 2021
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Evolution of dark currents in LYRA detectors - Update 2021
IED 11 May 2021
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Evolution of dark currents in LYRA detectors - Update 2022
IED 02 May 2022
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LYRA degradation status after ~4500 days
IED 07 Jul 2022 (see also Zagreb-Poster)
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Evolution of dark currents in LYRA detectors - Update 2023
IED 03 Apr 2023
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LYRA degradation status after ~4800 days
IED 02 Jun 2023
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Evolution of dark currents in LYRA detectors - Update 2024
IED 21 Mar 2024
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Overall LYRA Calibration Report
(First Approach, Status May 2007)
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Pre-flight Calibration of LYRA
(First Outline, Status Feb 2008, in progress)
Data Files
IED 27 Jul 2023