August 3, 2020


Measuring polar electron flux and spectrum
PartnerParis Diderot University
Launch DateLate 2020-early 2021
Launch baseNot yet defined
OrbitSun-synchronous, 650 km
Mission lifetimeIndefinite

IGOSat stands for Ionospheric & Gamma-ray Observations SATellite, the first satellite (a 3U cubesat) built by Paris Diderot University, with support from the JANUS project, the APC astroparticle and cosmology laboratory and the IPGP Earth physics institute in Paris. More than 200 students are contributing to this project.

The satellite will be carrying two separate mission payloads:

  • A dual-frequency (L1 and L2) GPS receiver to study the electron content of the ionosphere by GPS occultation. This technique has already been used before by satellites to study the atmosphere, but never the ionosphere using one as small as a 3U cubesat.
  • A scintillator and silicon photomultiplier (SiPM) to detect gamma rays and electrons over the poles and the South Atlantic Anomaly (SAA), known for their density of high-energy particles.

The teams of students and supervisors hope to ready IGOSat for launch late in 2020.