Gap analyses by variable or by type of mission

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

Instrument types
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 observing technique (direct or through oscillations);
  • the observed volume (magnetosphere or platform environment)
  • whether the measurement is performed by more satellites flown in cluster.

 

RATING CRITERIA:

1

  • Electrometer flown through the magnetosphere in a satellite cluster
  • Electrometer flown through the magnetosphere

2

  • Magnetic and electric oscillator flown through the magnetosphere in a satellite cluster
  • Magnetic and electric oscillator flown through the magnetosphere

3

  • Electric oscillator flown through the magnetosphere in a satellite cluster
  • Electric oscillator flown through the magnetosphere

4

  • Electrometer measuring in the Earth’s limb or in the platform environment

5

  • Electric oscillator measuring in the platform environment
Measurement timeline for Electric Field

Definition:

Magnitude and direction of the Earth’s electric field

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

Found 75 results

This table has a large number of results.
HideShow inactive instruments
Instrument NRT? Relevance Satellite Orbit
1961
1962
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1973
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1989
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1991
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1998
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2004
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2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
EFI (THEMIS)1 - primaryARTEMIS-P26 °
X
XXXXXXXXX
EFI (THEMIS)1 - primaryTHEMIS-A6 °
X
XXXXXXXXXXXXX
EFI (THEMIS)1 - primaryTHEMIS-E6 °
X
XXXXXXXXXXXXX
EFI (THEMIS) Important note1 - primaryARTEMIS-P16 °
X
XXXXXXXXX
EFI (THEMIS)1 - primaryTHEMIS-D6 °
X
XXXXXXXXXXXXX
EFW (CLUSTER)1 - primaryCLUSTER A&B Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
EFW (CLUSTER)1 - primaryCLUSTER C&D Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
EFW (VAP) Important note1 - primaryVAP (2 sat)18 °
X
XXXXXX
X
DP Important note1 - primaryMMS-B28 °
X
XXXXX
DP1 - primaryMMS-C28 °
X
XXXXX
DP Important note1 - primaryMMS-D28 °
X
XXXXX
DP1 - primaryMMS-A28 °
X
XXXXX
EDI1 - primaryCLUSTER A&B Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
EDI1 - primaryCLUSTER C&D Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
EDI (MMS) Important note1 - primaryMMS-B28 °
X
XXXXX
EDI (MMS) Important note1 - primaryMMS-C28 °
X
XXXXX
EDI (MMS)1 - primaryMMS-D28 °
X
XXXXX
EDI (MMS)1 - primaryMMS-A28 °
X
XXXXX
EFD1 - primaryGEOTAIL29 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXX
EFI (Polar)1 - primaryPolar86 °
X
XXXXXXXXXXX
X
EMFISIS Important note2 - very highVAP (2 sat)18 °
X
XXXXXX
X
WBD2 - very highCLUSTER A&B Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
WBD2 - very highCLUSTER C&D Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
PWI2 - very highGEOTAIL29 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXX
PWI (Polar)2 - very highPolar86 °
X
XXXXXXXXXXX
X
NBK/22 - very highIonosphere N1 & N2TBDXXXX
NBK/22 - very highIonosphere N3 & N4TBDXXXX
NBK/22 - very highZondTBDXXXX
SCM3 - highARTEMIS-P26 °
X
XXXXXXXXX
SCM3 - highTHEMIS-A6 °
X
XXXXXXXXXXXXX
SCM3 - highTHEMIS-E6 °
X
XXXXXXXXXXXXX
SCM3 - highARTEMIS-P16 °
X
XXXXXXXXX
SCM3 - highTHEMIS-D6 °
X
XXXXXXXXXXXXX
SCM (MMS)3 - highMMS-B28 °
X
XXXXX
SCM (MMS)3 - highMMS-C28 °
X
XXXXX
SCM (MMS)3 - highMMS-D28 °
X
XXXXX
SCM (MMS)3 - highMMS-A28 °
X
XXXXX
STAFF3 - highCLUSTER A&B Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
STAFF3 - highCLUSTER C&D Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
WHISPER3 - highCLUSTER A&B Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
WHISPER3 - highCLUSTER C&D Important note90 °
X
XXXXXXXXXXXXXXXXXXXX
PWE3 - highERG31 °
X
XXXX
CERTO4 - fairC/NOFS13 °
X
XXXXXX
X
CINDI4 - fairC/NOFS13 °
X
XXXXXX
X
DIDM4 - fairC/NOFS13 °
X
XXXXXX
X
DIDM4 - fairCHAMP87 °
X
XXXXXXXXX
X
EFI (SWARM)4 - fairSWARM-A87.35 °
X
XXXXXXX
EFI (SWARM)4 - fairSWARM-C87.35 °
X
XXXXXXX
EFI (SWARM)4 - fairSWARM-B87.75 °
X
XXXXXXX
IVM4 - fairICON27 °
X
XXXXX
PLP4 - fairC/NOFS13 °
X
XXXXXX
X
RPI4 - fairIMAGE90 °
X
XXXX
X
VEFI4 - fairC/NOFS13 °
X
XXXXXX
X
VIDI4 - fairCOSMIC-224 °
X
XXXXXXX
DSLP Important note4 - fairPROBA-206:00 asc
X
XXXXXXXXXXX
LP4 - fairSTSat-2C80 °
X
X
LP4 - fairTIROS-758.2 °
X
XXXX
X
SEM/SSI/ES-24 - fairDMSP-F0210:00 desc
X
X
SEM/SSI/ES-24 - fairDMSP-F0410:00 desc
X
X
SEM/SSI/ES-24 - fairDMSP-F0506:20 
X
SEM/SSI/ES-24 - fairDMSP-F0606:20 desc
X
XXXXXXXXXXXXXX
X
SEM/SSI/ES-24 - fairDMSP-F0710:10 desc
X
XXXX
X
SEM/SSI/ES-24 - fairDMSP-F0806:10 desc
X
XXXXXXXXXXXXXXXXXX
X
SEM/SSI/ES-24 - fairDMSP-F0909:30 desc
X
XXXXX
X
SEM/SSI/ES-24 - fairDMSP-F1007:30 desc
X
XXXXXX
X
SEM/SSI/ES-24 - fairDMSP-F1105:00 desc
X
XXXXXXXX
X
SEM/SSI/ES-24 - fairDMSP-F1203:35 desc
X
XXXXXXXXXXXXX
X
SEM/SSI/ES-24 - fairDMSP-F1305:51 desc
X
XXXXXXXXXXXXXXXXXXX
X
SEM/SSI/ES-2No4 - fairDMSP-F1417:00 asc
X
XXXXXXXXXXXXXXXXXXXX
SEM/SSI/ES-2No4 - fairDMSP-F15 Important note14:50 asc
X
XXXXXXXXXXXXXXXXXXXXX
SESS/SSI/ES-3No4 - fairDMSP-F1606:20 asc
X
XXXXXXXXXXXXXXXX
SESS/SSI/ES-3 Important noteNo4 - fairDMSP-F1706:40 desc
X
XXXXXXXXXXXXXX
SESS/SSI/ES-3 Important noteNo4 - fairDMSP-F1804:50 desc
X
XXXXXXXXXXX
SESS/SSI/ES-3No4 - fairDMSP-F1906:36 desc
X
X
X
Potential5 - marginalSICH-210:50 desc
X
X
All instruments for measuring Electric Field
Instruments Relevance Operational limitations
EFI (THEMIS)1 - primary
EFW (CLUSTER)1 - primary
EFW (VAP)1 - primary
DP1 - primary
EDI1 - primary
EDI (MMS)1 - primary
EFD1 - primary
EFI (Polar)1 - primary
EMFISIS2 - very high
WBD2 - very high
PWI2 - very high
PWI (Polar)2 - very high
NBK/22 - very high
SCM3 - high
SCM (MMS)3 - high
STAFF3 - high
WHISPER3 - high
PWE3 - high
CERTO4 - fair
CINDI4 - fair
DIDM4 - fair
EFI (SWARM)4 - fair
IVM4 - fair
PLP4 - fair
RPI4 - fair
VEFI4 - fair
VIDI4 - fair
DSLP4 - fair
LP4 - fair
SEM/SSI/ES-24 - fair
SESS/SSI/ES-34 - fair
Potential5 - marginal