COSPIN Operations - Ulysses

Cosmic-Ray and Solar-Particle Investigation (COSPIN)

The COSPIN (SIM) Experiment is a group of six charged particle telescopes to measure the energy, composition, intensity and anisotropy of nucleons in the energy range from ~0.5 MeV/nucleon to ~600 MeV/nucleon for elements in the range H to Ni. Isotopic abundances for nuclei H to Ni are obtained over a more limited energy range. Electron measurements extend from 4 to several hundred MeV.

One set of telescopes will measure the three-dimensional anisotropies of protons and helium at low energies. A special high flux telescope provides measurements of protons and heavier particles ~ 0.2 to ~ 10 MeV/n with high azimuthal resolution. These instruments were prepared by the international COSPIN consortium to address a wide range of scientific objectives made possible by a mission to investigate the Sun and the heliosphere in three dimensions. For more scientific information, visit the following COSPIN team websites:

COSPIN-AT at Imperial College, London

COSPIN-HET at the University of Chicago

COSPIN-LET at ESTEC

COSPIN-KET at Milan

Power and Mass Properties

Operational issues

Monthly HET calibrations are performed. The HET heaters will remain switched off for the duration of the mission.