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

  • the observed solar area (disk only or disk + corona);
  • the number of channels and the covered spectral range.

 

RATING CRITERIA:

1

  • Disk + corona, many channels, large spectral range
  • Disk only, many channels, large spectral range

2

  • Disk + corona, many channels, narrow spectral range
  • Disk only, many channels, narrow spectral range

3

  • Disk + corona, few channels, large spectral range
  • Disk only, few channels, large spectral range

4

  • Disk + corona, few channels, narrow spectral range
  • Disk only, few channels, narrow spectral range

5

  • -
Measurement timeline for Solar X-ray flux

Definition:

Integrated X-ray flux over the solar disk

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

Found 62 results

This table has a large number of results.
HideShow inactive instruments
Instrument NRT? Relevance Satellite Orbit
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
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
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
XRT1 - primarySolar-B (Hinode)06:00 asc
X
XXXXXXXXXXXXXX
BRM1 - primaryCoronas-Photon82.5 °
X
XEUVI1 - primaryFY-3E05:30 descXXXXXX
XEUVI1 - primaryFY-4C86.5°EXXXXXXXX
XEUVI1 - primaryFY-4D105°EXXXXXXXX
XEUVI1 - primaryFY-4E86.5°EXXXXXXXX
XEUVI1 - primaryFY-4F105°EXXXXXXXX
XEUVI1 - primaryFY-4G86.5°EXXXXXXXX
EXIS3 - highGOES-1675.2°W
X
XXXXXXXXXXX
EXISYes3 - highGOES-17137.2°W
X
XXXXXXXXXXX
EXIS3 - highGOES-T137°WXXXXXXXXXXXX
EXIS3 - highGOES-U75°WXXXXXXXXXXXX
PHOKA3 - highCoronas-Photon82.5 °
X
SEM/XRS-EUV3 - highGOES-9 (GMS backup)155°E
X
XX
X
SEM/XRS-EUV3 - highGOES-10 (S-America)60°W
X
XX
X
SEM/XRS-EUV3 - highGOES-1135°W
X
XXXXXXXXX
X
SEM/XRS-EUV3 - highGOES-275°W
X
XXXXXXXXXXXXXXX
X
SEM/XRS-EUV3 - highGOES-3135°W
X
XXXXXXXXXXXXXX
X
SEM/XRS-EUV3 - highGOES-4135°W
X
XXXXXXX
X
SEM/XRS-EUV3 - highGOES-575°W
X
XXXXXXXX
X
SEM/XRS-EUV3 - highGOES-6135°W
X
XXXXX
X
SEM/XRS-EUV3 - highGOES-775°W
X
XXXXXXXX
X
SEM/XRS-EUV3 - highGOES-875°W
X
XXXXXXXXX
X
SEM/XRS-EUV3 - highGOES-9135°W
X
XXXXXXX
X
SEM/XRS-EUV3 - highGOES-10135°W
X
XXXXXXXX
X
SEM/XRS-EUV3 - highGOES-11135°W
X
XXXXXXXXXX
X
SEM/XRS-EUV Important note3 - highGOES-1275°W
X
XXXXXX
SEM/XRS-EUV Important noteYes3 - highGOES-1360°W
X
XXXXXXXXXXXX
X
SEM/XRS-EUV Important noteYes3 - highGOES-14105°W
X
XXXXXXXXXXX
SEM/XRS-EUV Important noteYes3 - highGOES-15128°W
X
XXXXXXXXXX
SEM/XRS-EUV3 - highSMS-175°W
X
XXXXXX
X
SEM/XRS-EUV3 - highSMS-2135°W
X
XXXXXX
X
SUFR-Sp-C3 - highCoronas-I82.5 °
X
SUFR-Sp-C3 - highCoronas-F82.5 °
X
XXX
X
SXEUV3 - highFY-4B105°EXXXXXXXX
SXEUV3 - highFY-4C86.5°EXXXXXXXX
SXEUV3 - highFY-4D105°EXXXXXXXX
SXEUV3 - highFY-4E86.5°EXXXXXXXX
SXEUV3 - highFY-4F105°EXXXXXXXX
SXEUV3 - highFY-4G86.5°EXXXXXXXX
SXI Important note3 - highGOES-1275°W
X
XXXXXX
SXI Important noteYes3 - highGOES-1360°W
X
XXXXXXXXXXXX
X
SXI Important noteYes3 - highGOES-14105°W
X
XXXXXXXXXXX
SXI Important noteYes3 - highGOES-15128°W
X
XXXXXXXXXX
SXM Important note3 - highFY-2F112°E
X
XXXXXXX
SXM3 - highFY-2G99.5°E
X
XXXXXX
SXMYes3 - highFY-2H79°E
X
XXXX
SXUS3 - highFY-4C86.5°EXXXXXXXX
SXUS3 - highFY-4D105°EXXXXXXXX
SXUS3 - highFY-4E86.5°EXXXXXXXX
SXUS3 - highFY-4F105°EXXXXXXXX
SXUS3 - highFY-4G86.5°EXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-L N576°EXXXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-M N3165.8°EXXXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-L N129.6°W
X
XXXXX
GGAK-E/DIR-EYes4 - fairElectro-L N214.5°W
X
XXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-M N114.5°WXXXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-M N276°EXXXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-L N4166°EXXXXXXXXXXX
GGAK-E/DIR-E4 - fairElectro-L N376°E
X
XXXXXXXXXX
RMS-solar4 - fairElectro-GOMS76.5°E
X
XXXXX
X
SPR-N4 - fairCoronas-F82.5 °
X
XXX
X
All instruments for measuring Solar X-ray flux
Instruments Relevance Operational limitations
XRT1 - primary
BRM1 - primary
XEUVI1 - primary
EXIS3 - high
PHOKA3 - high
SEM/XRS-EUV3 - high
SUFR-Sp-C3 - high
SXEUV3 - high
SXI3 - high
SXM3 - high
SXUS3 - high
GGAK-E/DIR-E4 - fair
RMS-solar4 - fair
SPR-N4 - fair