WMO OSCAR | Gap analyses by variable or by type of mission or by WIGOS subcomponent

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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 () 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

Subcomponent 1

Subcomponent 2

Subcomponent 3

Subcomponent 4

Instrument types

ECT range

Orbit types

Longitude range

Analysis

Expert system, based on instrument properties Help icon

Simplified, based on mission objectives Help icon

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 involved particles (electrons, protons, alpha-particles); the observed region (interplanetary space, Sun). RATING CRITERIA:
1	Spectrometer for electrons, protons and alpha particles, viewing the interplanetary space Solar-pointingspectrometer for electrons, protons and alpha particles
2	Spectrometer for electrons and protons, viewing the interplanetary space Solar-pointing spectrometer for electrons and protons
3	Spectrometer for protons and alpha particles, viewing the interplanetary space Solar-pointing spectrometer for protons and alpha particles
4	Magnetic and electric oscillators flown in a solar orbit
5	-

Measurement timeline for Solar wind temperature

Definition:

Temperature of solar wind protons

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

Found 28 results

This table has a large number of results.

Hide lower rated instruments

Hide inactive instruments

Instrument	NRT?	Relevance	Satellite	Orbit	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
EPACT		1 - primary	WIND		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
EPAM		1 - primary	ACE					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
EPD		1 - primary	Solar Orbiter	25 °																											X	X	X	X	X	X	X	X	X	X	X
ERNE		1 - primary	SOHO			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IMPACT/SEP		1 - primary	STEREO-B	23.44 °													X	X	X	X	X	X	X	X	X
IMPACT/SEP		1 - primary	STEREO-A	23.44 °													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
PAPA		1 - primary	Aditya-1																														X	X	X	X	X	X
SWA		1 - primary	Solar Orbiter	25 °																											X	X	X	X	X	X	X	X	X	X	X
SWE		1 - primary	WIND		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SWIS/SWiPS		1 - primary	SWFO-L1																																X	X	X	X	X	X
COSTEP		1 - primary	SOHO			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Electron-M-PESCA		1 - primary	Coronas-Photon	82.5 °																X
SKL-particles		1 - primary	Coronas-I	82.5 °	X
SKL-particles		1 - primary	Coronas-F	82.5 °								X	X	X	X	X
SWEAPI		1 - primary	Parker Solar Probe	3.4 °																									X	X	X	X	X	X	X	X
SWEPAM		1 - primary	ACE					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
PLASMA		2 - very high	WIND		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ASPEX		3 - high	Aditya-1																														X	X	X	X	X	X
CRIS (ACE)		3 - high	ACE					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
FC	Yes	3 - high	DSCOVR	N/A																						X	X	X	X	X	X	X	X	X
PLASTIC		3 - high	STEREO-B	23.44 °													X	X	X	X	X	X	X	X	X
PLASTIC		3 - high	STEREO-A	23.44 °													X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SMS		3 - high	WIND		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SWICS		3 - high	ACE					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CELIAS		3 - high	SOHO			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ISIS-EPI		3 - high	Parker Solar Probe	3.4 °																									X	X	X	X	X	X	X	X
SIS		3 - high	ACE					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
FIELDS		4 - fair	Parker Solar Probe	3.4 °																									X	X	X	X	X	X	X	X

All instruments for measuring Solar wind temperature

Instruments	Relevance	Operational limitations
EPACT	1 - primary
EPAM	1 - primary
EPD	1 - primary
ERNE	1 - primary
IMPACT/SEP	1 - primary
PAPA	1 - primary
SWA	1 - primary
SWE	1 - primary
SWIS/SWiPS	1 - primary
COSTEP	1 - primary
Electron-M-PESCA	1 - primary
SKL-particles	1 - primary
SWEAPI	1 - primary
SWEPAM	1 - primary
PLASMA	2 - very high
GGAK-E/SKL-E	2 - very high
ASPEX	3 - high
CRIS (ACE)	3 - high
FC	3 - high
PLASTIC	3 - high
SMS	3 - high
SWICS	3 - high
CELIAS	3 - high
ISIS-EPI	3 - high
SIS	3 - high
FIELDS	4 - fair