Access to Solar Orbiter Low Latency Data

August 25, 2020, from Yannis Zouganelis

The Solar Orbiter teams are making public the Low Latency data from the four in-situ instruments (EPD, MAG, RPW, SWA), available via the ESA Solar Orbiter Archive.

Low Latency data are a limited subset of each instrument’s data, downlinked in full during every communications pass. They are primarily an operational product, designed to provide situational awareness to the Solar Orbiter team, while the spacecraft is far from Earth, and it takes several weeks to months for science data to be returned to Earth. Within the team, low latency data will be used to perform high-level instrument health checks, to help choose the best targets for the high-resolution imagers, and, for some instruments, to help us select the most interesting events to downlink at the best resolution.

These data will be immediately available to the whole community from now on and for the entire duration of the mission. However they should be used with caution: they are not of a sufficient quality to undertake science analysis and results derived from them should not be submitted for publication. Full science-quality level 2 data products will be released later this year.

More details on how to access these data, together with a list of caveats are provided in this link:

For more information, feel free to contact the instruments’ Principal Investigators:

EPD (Energetic Particle Detector) PI: Javier Rodríguez-Pacheco, University of Alcalá, Spain,
MAG (Magnetometer) PI: Tim Horbury, Imperial College London, UK,
RPW (Radio and Plasma Waves) PI: Milan Maksimovic, LESIA, Observatoire de Paris, France,
SWA (Solar Wind Analyser) PI: Chris Owen, MSSL, University College London, UK,

For mission-level questions, please contact the ESA Project Scientists:

Daniel Müller:
Yannis Zouganelis:

For questions about the Solar Orbiter Archive, please contact the Archive Scientist, Pedro Osuna (