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 up-to-5-step rating, evaluated as a blend of several elements.  For this particular Variable, the rating is driven by:

  • the observation geometry
  • the spectral band exploited for imagery.

 

RATING CRITERIA:

1

  • Heliosphere around the Sun observed in VIS

2

  • Interplanetary space observed in UV and/or VIS and/or NIR and or SWIR

3

  • Interplanetary space observed in X-ray and/or EUV and/or at the Lyman-alpha line

4

  • Observation from the magnetosphere in UV and/or VIS and/or NIR and or SWIR

5

  • Observation from the magnetosphere in X-ray and/or EUV and/or at the Lyman-alpha line
Measurement timeline for Heliospheric image

Definition:

Image of the interplanetary space between the Sun and Earth

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

Found 20 results

This table has a large number of results.
HideShow inactive instruments
Instrument NRT? Relevance Satellite Orbit
1993
1994
1995
1996
1997
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
SECCHI/HI-11 - primarySTEREO-A23.44 °
X
XXXXXXXXXXXXXX
SECCHI/HI-11 - primarySTEREO-B23.44 °
X
XXXXXXX
X
SECCHI/HI-21 - primarySTEREO-A23.44 °
X
XXXXXXXXXXXXXX
SECCHI/HI-21 - primarySTEREO-B23.44 °
X
XXXXXXX
X
OM2 - very highXMM-Newton Important note40 °
X
XXXXXXXXXXXXXXXXXXXXX
SMEI Important note2 - very highCoriolis06:10 desc
X
XXXXXXX
X
FIMS2 - very highSTSat-110:30 asc
X
X
X
FUV (ICON)2 - very highICON27 °
X
XXXXX
FUV/SI2 - very highIMAGE90 °
X
XXXX
X
FUV/WIC2 - very highIMAGE90 °
X
XXXX
X
MIRIS/MSOC2 - very highSTSat-310:30 desc
X
XXXXXXX
FUV/GEO3 - highIMAGE90 °
X
XXXX
X
SWAN3 - highSOHO
X
XXXXXXXXXXXXXXXXXXXXXXXXX
EUV3 - highIMAGE90 °
X
XXXX
X
EPIC (XMM)3 - highXMM-Newton Important note40 °
X
XXXXXXXXXXXXXXXXXXXXX
IXAE3 - highIRS-P310:30 desc
X
XXXXXXX
X
RGS3 - highXMM-Newton Important note40 °
X
XXXXXXXXXXXXXXXXXXXXX
FAI4 - fairCASSIOPE80 °
X
XXXXXXXXXXX
UVI4 - fairPolar86 °
X
XXXXXXXXXXX
X
PIXIE5 - marginalPolar86 °
X
XXXXXXXXXXX
X
All instruments for measuring Heliospheric image
Instruments Relevance Operational limitations
SECCHI/HI-11 - primary
SECCHI/HI-21 - primary
OM2 - very high
SMEI2 - very high
FIMS2 - very high
FUV (ICON)2 - very high
FUV/SI2 - very high
FUV/WIC2 - very high
MIRIS/MSOC2 - very high
FUV/GEO3 - high
SWAN3 - high
EUV3 - high
EPIC (XMM)3 - high
IXAE3 - high
RGS3 - high
FAI4 - fair
UVI4 - fair
PIXIE5 - marginal