The LYRA Instrument Onboard PROBA2: Description and In-Flight Performance
M. Dominique, J.-F. Hochedez, W. Schmutz, I.E. Dammasch, A.I. Shapiro,, M. Kretzschmar, A.N. Zhukov, D. Gillotay, Y. Stockman, A. BenMoussa
TL;DR
The LYRA instrument on PROBA2 measures solar irradiance across multiple wavelengths with high cadence, providing valuable data for solar physics, space weather, and aeronomy research since 2009.
Contribution
This paper details the design, calibration, and data products of LYRA, highlighting its capabilities and current research applications in solar and space sciences.
Findings
High-cadence solar irradiance measurements in four spectral channels.
Comprehensive calibration procedures for accurate data.
Active research areas utilizing LYRA data.
Abstract
The Large Yield Radiometer (LYRA) is an XUV-EUV-MUV (soft X-ray to mid-ultraviolet) solar radiometer onboard the European Space Agency PROBA2 mission that was launched in November 2009. LYRA acquires solar irradiance measurements at a high cadence (nominally 20 Hz) in four broad spectral channels, from soft X-ray to MUV, that have been chosen for their relevance to solar physics, space weather and aeronomy. In this article, we briefly review the design of the instrument, give an overview of the data products distributed through the instrument website, and describe the way that data are calibrated. We also briefly present a summary of the main fields of research currently under investigation by the LYRA consortium.
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