CHESS Satellites

Spacecraft name CHESS (Constellation of High Energy Swiss Satellites)
Form factor CubeSat
Units or mass 3U
Entity name Swiss Federal Institute of Technology in Lausanne (EFPL)
Institution University
Entity type Academic / Education
Headquarters Switzerland
Partners PSI (Paul Scherrer Institut), FHNW (Fachhochschule Nordwestschweiz), University of Bern, ETH Zurich

Study the chemical composition of Earth’s exosphere using time-of-flight mass spectrometry. 


Study high energy astrophysics with a hard X-ray Compton polarimeter as main payload. Triple objective:

  • permanent monitoring of the full sky for hard X-ray transient gamma ray bursts.
  • permanent observation of the sun in hard X-rays energies.
  • observation of space weather events, electrons protons and heavy ions.

These observations will be used both for space industry applications and for scientific research (data correlation with other missions such as Solar Orbiter and LIGO-Virgo gravitational wave observatories).

One satellite will be equipped with a Time of Flight camera developed at Advanced Quantum Architecture Lab, EPFL. The target is to demonstrate if such a camera can be more competent than current rendezvous radars to track the other satellites of the constellation.

Sources [1] [2] [3] [4] [5]
Photo sources [1]
COTS subsystems
  • GPS - u-blox ZED-9FP
Subsystems sources [1]

Related Spacecraft

Satellite Status Rocket Date Orbit
CHESS A (Constellation of High Energy Swiss Satellites) not launched not launched 2025-12-30 not launched
CHESS B (Constellation of High Energy Swiss Satellites) not launched not launched 2025-12-30 not launched

Last modified: 2024-05-29

Feel free to connect at any time.

Created by Erik Kulu


Social Platforms

LinkedIn: Nanosats
Twitter: @nanosatellites

Sister Websites

NewSpace Index:
Factories in Space:

Copyright © 2014 - 2024 Erik Kulu