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Instrument: ECT/HOPE
Instrument details
Acronym
ECT/HOPE
Full name
ECT Helium Oxygen Proton Electron
Purpose
To measure slow particles that generate electromagnetic waves affecting higher energy particles trapped in the Van Allen belts
Short description
Electrostatic top-hat analyzer and time-gated coincidence detectors to measure electrons, protons, alpha-particles and oxygen ions. Energy range 0.02-45 keV (electrons) and 0.02-45 keV/n (ions with Z from 1 to 8)
Background
Part of the VAP (Van Allen Probe) instrument package ECT (Energetic Particle, Composition, and Thermal Plasma Suite), in association with MagEIS (Magnetic Electron and Ion Spectrometer) and REPT (Relativistic Electron Proton Telescope)
Scanning Technique
2 satellites moving to different positions into the Magnetosphere in a low.inclination HEO
Resolution
N/A
Coverage / Cycle
Large fraction of the magnetosphere and ionosphere
Mass
Power
Data Rate
Providing Agency
NASA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2012-10-28 to 2019-10-18
Last update:
2021-10-02
Detailed characteristics
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
future satellites
Instrument classification
Solar and space environment monitors Energetic particle spectrometer
WIGOS Subcomponents
Subcomponent 2 Electron sensor [cross magnetosphere] Proton sensor [cross magnetosphere] Alpha-particle sensor [cross magnetosphere] Heavy ion sensor [cross magnetosphere]
Mission objectives
Primary mission objectives Alpha particles differential directional flux Electron differential directional flux Heavy ion angular flux energy and mass spectrum Heavy ion flux energy and mass spectrum Proton differential directional flux Show all Show fewer
Tentative Evaluation of Measurements
The following list indicates which measurements can typically be
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers