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Instrument details
Acronym
ES
Full name
Electron Spectrometer
Purpose
Spectrometry of the electrons of the solar wind
Short description
Tophat electrostatic analyzer measuring the electron distribution function between 3 eV and 2 keV
Background
DSCOVR is the refurbishment of the Triana satellite stored on the ground in 2000 [named after Rodrigo de Triana, the first of Columbus's crew to sight land in the Americas
Scanning Technique
Interplanetary space from the L1 Lagrange libration point
Resolution
N/A
Coverage / Cycle
Full interplanetary space, nearly continuous
Mass
Power
Data Rate
Providing Agency
NASA
Instrument Maturity
Backed by strong heritage
Utilization Period:
2015-10-28 to ≥2023
Last update:
2017-06-02
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
No WIGOS subcomponents have been defined.
Mission objectives
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
Variable Relevance for measuring this variable Operational limitations Explanation
Electron differential directional flux 3 - high No specific limitation. Interplanetary space, low energy (up to 40 keV)
Instrument: ES