ECT Instrument Suite

ECT Suite Overview

MagEIS Instrument

HOPE Instrument

REPT Instrument


NASA Gallery

NASA RBSP Animations
NASA Space Weather Videos


nasa logo

ECT HOPE Instrument

The Helium Oxygen Proton Electron (HOPE) mass spectrometer instrument uses an electrostatic top-hat analyzer and time-gated coincidence detectors to measure electrons, protons, and helium and oxygen ions with energies from less than or equal to 20 eV or spacecraft potential (whichever is greater) to greater than or equal to 45 keV while rejecting penetrating backgrounds.

ECT-HOPE Instrument
Schematic of HOPE mass spectrometer.


HOPE instrument
HOPE instrument in calibration chamber.