  Studies of solar wind turbulence traditionally employ high-resolution
magnetic field data, but high-resolution measurements of ion and electron
moments have been possible only recently. We report the first turbulence
studies of ion and electron velocity moments accumulated in pristine solar wind
by the Fast Particle Investigation instrument onboard the Magnetospheric
Multiscale (MMS) Mission. Use of these data is made possible by a novel
implementation of a frequency domain Hampel filter, described herein. After
presenting procedures for processing of the data, we discuss statistical
properties of solar wind turbulence extending into the kinetic range. Magnetic
field fluctuations dominate electron and ion velocity fluctuation spectra
throughout the energy-containing and inertial ranges. However, a
multi-spacecraft analysis indicates that at scales shorter than the
ion-inertial length, electron velocity fluctuations become larger than ion
velocity and magnetic field fluctuations. The kurtosis of ion velocity peaks
around few ion-inertial lengths and returns to near gaussian value at sub-ion
scales.
