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P2SC News

Release of a new LYRA product: O+N₂ Earth atmosphere number densities

The PROBA2 team is happy to announce the release of a new data product: the Earth atmosphere O+N2 number density profiles. These profiles are derived from solar occultation measurements by LYRA and are available at /lyra/data/EarthAtmosphere/. They are produced daily from beginning of December till end of January and are based on the backup unit (unit 3) measurements to limit the impact of instrumental degradation.

LYRA observes a strong solar flare in its Herzberg channel!

Big news in solar physics land: the sun produced a series of strong solar flares in the past week. On September 6, 2017, an X9.3 flare occurred in NOAA AR 12673 around 12:00 UT and was preceded by many other significant flares, including an X2.2 flare around 09:00 UT.