Gap analyses by variable or by type of mission or by WIGOS subcomponent

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 (Important note) indicates degraded satellite: hover over the icon for details. The chart is followed by a table of all potentially relevant instruments.

Select a variable

or select a type of mission

Select WIGOS subcomponents

Analysis
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In "Simplified" mode, the results in the analysis are calculated by looking at each instrument's mission objectives: for each instrument we keep track of what the primary, secondary, and opportunity mission objectives are. These mission objectives indicate that an instrument is primarily envisioned to measure variable X, Y and Z, that variables A, B and C are its secondary objective, and that it may offer the opportunity to measure variables I and II although it is not optimized for that. The simplified Gap analysis produces a timeline based on this information. The simplified Gap analysis is only available for analyzing variables, not for missions.
In "Expert system" mode, the results in the analysis are calculated with an expert system. Internally, OSCAR works with a large set of 1700 rules that determine whether or not an instrument is capable of measuring a given variable, and to what degree. When you select "Expert system", the Gap analysis is performed based on this large set of rules.

Variable sorting criteria

 

Each instrument is assigned with a 5-step rating, evaluated as a blend of several elements.  For this particular Variable, the rating is driven by:

  • the observed volume (ionosphere, magnetosphere, interplanetary space, platform environment).

 

RATING CRITERIA:

1

  • Active radio-wave device flown through the ionosphere

2

  • Active radio-wave flown through the magnetosphere in a satellite cluster

3

  • Active radio-wave flown through the magnetosphere

4

  • Active radio-wave observing the interplanetary space

5

  • Active radio-wave observing the platform environment
Measurement timeline for Ionospheric Radio Absorption

Definition:

Attenuation of a radio wave passing through the lower ionosphere.

Hint: Move around in the timeline by scrolling up, down, left or right.

Found 15 results

This table has a large number of results.
Hide inactive instruments
Instrument NRT? Relevance Satellite Orbit
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
CERTO1 - primaryC/NOFS13 °
X
XXXXXX
X
CERTO/TBB Important noteNo1 - primaryCOSMIC-172 °
X
XXXXXXXXXXXXX
X
CITRIS1 - primarySTPSat-137.4 °
X
X
X
LAERTES1 - primaryIonosphere N1 & N2TBDXXXX
LAERTES1 - primaryIonosphere N3 & N4TBDXXXX
MAYAK1 - primaryIonosphere N1 & N2TBDXXXX
MAYAK1 - primaryIonosphere N3 & N4TBDXXXX
RFB1 - primaryCOSMIC-224 °
X
XXXXXXX
RPI1 - primaryIMAGE90 °
X
XXXX
X
WHISPER2 - very highCLUSTER-A90 °
X
XXXXXXXXXXXXXXXXXXXXXXXXX
WHISPER2 - very highCLUSTER-C90 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXX
WHISPER2 - very highCLUSTER-B90 °
X
XXXXXXXXXXXXXXXXXXXXXXXXX
WHISPER2 - very highCLUSTER-D90 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXX
CER3 - highCASSIOPE80 °
X
XXXXXXXXXXX
TPMU Important note4 - fairPROBA-206:00 asc
X
XXXXXXXXXXXX
All instruments for measuring Ionospheric Radio Absorption
Instruments Relevance Operational limitations
CERTO1 - primary
CERTO/TBB1 - primary
CITRIS1 - primary
LAERTES1 - primary
MAYAK1 - primary
RFB1 - primary
RPI1 - primary
WHISPER2 - very high
CER3 - high
TPMU4 - fair