Ulysses Solar Wind Observations Over the Poles of the Sun (SWOOPS) Alpha Particle Distribution Function Hot Plasma Moments, Level H1, 4 min Data

The Vector Magnetic Field and the Particle Velocity are given in Inertial RTN Coordinates. The Magnetic Field was obtained for the Time at which the Peak of the Alpha Particle Distribution Function was measured.

The Particle Velocity was obtained after rotating the Fluid Velocity from Spacecraft to RTN Coordinates and taking into account the Spacecraft Velocity. During Periods of Spacecraft Nutation only the Bulk Speed and Density are reliable, individual Velocity Components and Temperatures are invalid. The Beginning of scientifically useful SWOOPS Data is at Day 322, 00:59 of 1990; at that Time the Spacecraft was already nutating; Nutation ceased as of Day 351, 22:00, 1990.