The vector magnetomer on board of the Argentine Technological
demonstration satellite SAC-A measured the magnetic field components
every 16 seconds. The magnetometer was inside the satellite (NO BOOM)
and the measurements are contaminated by the satellite itself. An
on-board GPS provided matching positional measurements. Attitude
solutions from the GPS are also provided but only for a limited part
of the data set, restricting the usefulness of the data to only
intensity in the remaining parts.