Two Wide-angle Imaging Neutral-atom Spectrometers
To provide stereoscopic imaging of the magnetosphere for improved understanding of its structure and processes
Simultaneous Energetic Neutral Atom (ENA) images from two widely separated locations are taken to implement stereoscopy. The instrumentation consists of a neutral atom imager covering the 1-100 keV energy range with 1 min time resolution
Coupled to a simple Lyman-alpha imager to monitor the geocoronal hydrogen density to aid in ENA analysis while environmental sensors provide contemporaneous measurements of the local charged particle environments.
Measurements taken across the Magnetosphere as the satellites move along the highly elliptical orbit (Molniya). Field of view about 2.5 sr centered approximately about nadir from each of 2 spacecrafts
4º x 4º for H atoms with energies > 10 keV
Coverage / Cycle
Full magnetosphere volume
Flown on an R&D satellite
2006 to 2020
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
Solar and space environment monitors Energetic particle spectrometer
No WIGOS subcomponents have been defined.
Tentative Evaluation of Measurements
The following list indicates which measurements can
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
Variable Relevance for measuring this variable Operational limitations Explanation
Energetic Neutral Atom (ENA) 1 - primary No specific limitation. Interplanetary space, medium energy (over 1000 up to 100000 eV)