Please select either a variable or a type of mission to display a time chart of satellite
instruments having the potential to provide the corresponding measurements. The
selection is based on design characteristics (Expert analysis) or declared mission
objectives (Simplified analysis). Such a preliminary analysis does not replace a detailed
assessment of the actual instrument performances, data availability, and quality of
derived environmental data records against specific user requirements.
Note: The chart can be sorted by clicking on the header columns and filtered by
instrument properties when applicable. Select the period of interest with the cursor at
the bottom of the chart. Future missions which are not firmly planned are shaded with
stripes. A warning icon
indicates degraded satellite: hover over the icon for details.
The chart is followed by a table of all potentially relevant instruments.
An alpha particle has positive charge and consists of two protons and two neutrons (the nucleus of a helium atom). Flux is the rate of flow through a reference surface, measured in particles per unit area.The directional flux is the flux limited to a certain solid angle as a function of the direction (pitch angle).
Hint: Move around in the timeline by scrolling up, down, left or right.
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