Instrument Description
The SWAP instrument is an electrostatic instrument. Electro-optics control the energy band pass of ions entering the instrument. The electro-optics have three parts: the Retarding Potential Analyzer (RPA), the Electrostatic Analyzer (ESA), and the deflector (DFL). The RPA consists of four grids with the inner two having a positive voltage, which repels ions with energies less than the corresponding potential energy (qV). The Electrostatic Analyzer has two parts, which are concentrically spaced, an inner dome and an outer spherical shell (at ground). For any given settings of the RPA and ESA voltages, only ions with a limited range (bandpass) of energies pass through he ESA to reach the detector. The deflector is used to adjust the field of view.

Scientific Objectives
SWAP was designed to measure charged particles from the solar wind near Pluto to determine whether Pluto has a magnetosphere and how fast its atmosphere is escaping.

Note: Acquisition of Jupiter data was an add-on

The SWAP data are housed at the PDS/PPI node

Useful Mission Documents

Also See Space Sci Rev (2008) 140: 261–313, DOI 10.1007/s11214-007-9205-3, D. McComas, The Solar Wind Around Pluto (SWAP) Instrument Aboard New Horizons.

Trajectory Information for the Jupiter Flyby (Label and Table)

Jupiter Archive Collection - The data span the period 2007-01-07 11:04:34 to 2007-06-21
Raw Data
Citation to use when referencing this data set: "McComas, D., NEW HORIZONS Raw SWAP JUPITER ENCOUNTER V3.0, NH-J-SWAP-2-JUPITER-V3.0, NASA Planetary Data System, 2014.”

Calibrated Data
Citation to use when referencing this data set: "McComas, D., NEW HORIZONS Calibrated SWAP JUPITER ENCOUNTER V3.0, NH-J-SWAP-3-JUPITER-V3.0, NASA Planetary Data System, 2014."

Pluto Cruise

Publications - A listing of team members to facilitate literature searches.