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: whether the LW irradiance is directly measured by broad-band radiometry; whether it is interpolated from narrow-band radiometers or spectrometers. RATING CRITERIA:
1	Broad-band radiometer with LW channel
2	Broad-band radiometer with LW irradiance computed as Total - SW
3	Spectrometer covering the range 3.5-15 mm Spectrometer covering the range 5-22 mm Spectrometer covering the range 5-15 mm
4	Radiometer with channels in the MWIR and TIR windows, the H2O 6-8 mm band, and the CO2 4.3 and/or 15 mm band(s)
5	Radiometer with channels in the MWIR and TIR windows, and the H2O 6-8 mm band Radiometer with channels in the TIR window, the CO2 15 mm band, and the H2O 22 mm band

Measurement timeline for Upward long-wave irradiance at TOA

Definition:

Flux density of terrestrial radiation emitted by the Earth surface and the gases, aerosols and clouds ot the atmosphere at the top of the atmosphere

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

Found 249 results

This table has a large number of results.

Hide lower rated instruments

Hide inactive instruments

Instrument	NRT?	Relevance	Satellite	Orbit	1959	1960	1961	1962	1963	1964	1965	1966	1967	1968	1969	1970	1971	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	2043	2044
ERB		1 - primary	Nimbus-6	12:00 desc																	X	X	X	X	X	X	X	X	X
ERB		1 - primary	Nimbus-7	12:00 desc																				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ERBE		1 - primary	ERBS	57 °																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ERBE (NOAA)		1 - primary	NOAA-9	14:30 asc																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
ERBE (NOAA)		1 - primary	NOAA-10	07:30 desc																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Libera		1 - primary	JPSS-3	13:30 asc																																																																					X	X	X	X	X	X	X	X
Libera		1 - primary	JPSS-4	13:30 asc																																																																										X	X	X	X	X	X	X	X
RBI		1 - primary	JPSS-2	13:30 asc																																																																X	X	X	X	X	X	X	X
ERM-2		1 - primary	FY-3H	14:00 asc																																																																		X	X	X	X	X	X
MRIR		1 - primary	Nimbus-2	11:30 desc								X	X	X	X
MRIR		1 - primary	Nimbus-3	12:00 desc											X	X	X	X
MRIR		1 - primary	TIROS-2	48.6 °		X	X
MRIR		1 - primary	TIROS-3	47.9 °			X	X
MRIR		1 - primary	TIROS-4	48.3 °				X
MRIR		1 - primary	TIROS-7	58.2 °					X	X	X	X	X	X
CERES	Yes	2 - very high	Aqua	13:30 asc																																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CERES	Yes	2 - very high	Terra	10:30 desc																																									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
CERES	Yes	2 - very high	SNPP	13:25 asc																																																					X	X	X	X	X	X	X	X	X	X	X
CERES		2 - very high	TRMM	35 °																																							X	X
CERES	Yes	2 - very high	NOAA-20	13:25 asc																																																											X	X	X	X	X	X	X	X
NISTAR	Yes	2 - very high	DSCOVR	N/A																																																									X	X	X	X	X	X	X	X	X
ScaRaB		2 - very high	Megha-Tropiques	20 °																																																					X	X	X	X	X	X	X	X	X	X	X
ScaRaB		2 - very high	Meteor-3-6	82.5 °																																				X	X	X
ScaRaB		2 - very high	Resurs-O1-4	10:15 asc																																								X	X	X	X	X
ERBR		2 - very high	Electro-M N1	14.5°W																																																																			X	X	X	X	X	X	X	X	X	X	X
ERBR		2 - very high	Electro-M N2	76°E																																																																				X	X	X	X	X	X	X	X	X	X	X
ERBR		2 - very high	Electro-M N3	165.8°E																																																																							X	X	X	X	X	X	X	X	X	X	X
GERB		2 - very high	Meteosat-8	3.7°E																																												X	X	X	X	X	X	X	X	X	X	X	X	X	X
GERB	No	2 - very high	Meteosat-9	3.5°E																																															X	X	X	X	X	X	X	X	X	X	X	X
GERB	Yes	2 - very high	Meteosat-10	9.5°E																																																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
GERB		2 - very high	Meteosat-11	0°																																																									X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
GERB		2 - very high	Meteosat-8 (IODC)	41.5°E																																																										X	X	X	X	X	X	X
ERM-1		2 - very high	FY-3A	09:05 desc																																																		X	X	X
ERM-1		2 - very high	FY-3B	14:45 asc																																																				X	X
ERM-1		2 - very high	FY-3C	09:07 desc																																																							X	X	X	X	X	X	X	X
FPR		2 - very high	ESSA-1	09:30 desc								X	X
FPR		2 - very high	ESSA-3	09:30 desc								X	X	X
FPR		2 - very high	ESSA-5	09:30 desc									X	X	X	X
FPR		2 - very high	ESSA-7	09:30 desc										X	X	X
FPR		2 - very high	ESSA-9	09:30 desc											X	X	X	X
FPR		2 - very high	ITOS-1 (TIROS-M)	14:30 asc												X	X
FPR		2 - very high	NOAA-1	13:30 asc												X	X
FPR		2 - very high	TIROS-2	48.6 °		X	X
FPR		2 - very high	TIROS-3	47.9 °			X	X
FPR		2 - very high	TIROS-4	48.3 °				X
FPR		2 - very high	TIROS-7	58.2 °					X	X	X	X	X	X
FPR	No	2 - very high	Explorer-VII	50.28 °	X	X	X
BBR		2 - very high	EarthCARE	14:00 desc																																																																	X	X	X	X
AIRS	Yes	3 - high	Aqua	13:30 asc																																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
CrIS	Yes	3 - high	NOAA-20	13:25 asc																																																											X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-2	13:30 asc																																																																X	X	X	X	X	X	X	X
CrIS	Yes	3 - high	SNPP	13:25 asc																																																					X	X	X	X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-3	13:30 asc																																																																					X	X	X	X	X	X	X	X
CrIS		3 - high	JPSS-4	13:30 asc																																																																										X	X	X	X	X	X	X	X
GIIRS	Yes	3 - high	FY-4A	104.7°E																																																										X	X	X	X	X	X
GIIRS		3 - high	FY-4B	123.5°E																																																															X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4C	86.5°E																																																																			X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4D	105°E																																																																				X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4E	86.5°E																																																																					X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4F	105°E																																																																								X	X	X	X	X	X	X	X
GIIRS		3 - high	FY-4G	86.5°E																																																																											X	X	X	X	X	X	X	X
HIRAS	Yes	3 - high	FY-3D	13:29 asc																																																											X	X	X	X	X	X
HIRAS-2		3 - high	FY-3E	05:30 desc																																																															X	X	X	X	X	X
HIRAS-2		3 - high	FY-3H	14:00 asc																																																																		X	X	X	X	X	X
HIRAS-2		3 - high	FY-3F	10:00 desc																																																																	X	X	X	X	X	X
HIRAS-2		3 - high	FY-3I	05:30 desc																																																																			X	X	X	X	X	X
IASI	Yes	3 - high	Metop-A	08:46 desc																																																X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IASI	Yes	3 - high	Metop-B	09:30 desc																																																						X	X	X	X	X	X	X	X	X	X	X	X	X
IASI		3 - high	Metop-C	09:30 desc																																																												X	X	X	X	X	X	X	X	X	X
IASI-NG		3 - high	Metop-SG-A2	09:30 desc																																																																									X	X	X	X	X	X	X	X
IASI-NG		3 - high	Metop-SG-A3	09:30 desc																																																																															X	X	X	X	X	X	X	X
IASI-NG		3 - high	Metop-SG-A1	09:30 desc																																																																		X	X	X	X	X	X	X	X
IKFS-3		3 - high	Meteor-MP N1	15:30 asc																																																																			X	X	X	X	X	X	X	X
IKFS-3		3 - high	Meteor-MP N2	09:30 desc																																																																				X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N1	14.5°W																																																																			X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N2	76°E																																																																				X	X	X	X	X	X	X	X	X	X	X
IRFS-GS		3 - high	Electro-M N3	165.8°E																																																																							X	X	X	X	X	X	X	X	X	X	X
IRS		3 - high	MTG-S1	0°																																																																	X	X	X	X	X	X	X	X	X
IRS		3 - high	MTG-S2	0°																																																																								X	X	X	X	X	X	X	X	X
TES-nadir		3 - high	Aura	13:45 asc																																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
IMG		3 - high	ADEOS	10:30 desc																																						X	X
FORUM		3 - high	FORUM	09:30 desc																																																																				X	X	X	X
IRIS-B		3 - high	Nimbus-3	12:00 desc											X	X	X	X
IRIS-D		3 - high	Nimbus-4	12:00 desc												X	X	X	X	X	X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2	09:30 asc																																																								X	X	X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-1	15:09 asc																																																											X
IKFS-2		3 - high	Meteor-M N2-2	15:00 asc																																																													X
IKFS-2		3 - high	Meteor-M N2-3	09:00 desc																																																															X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-4	15:00 asc																																																																X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-5	15:00 desc																																																																		X	X	X	X	X	X
IKFS-2		3 - high	Meteor-M N2-6	09:00 asc																																																																			X	X	X	X	X	X
TANSO-FTS	No	3 - high	GOSAT	13:00 desc																																																			X	X	X	X	X	X	X	X	X	X	X	X	X
TANSO-FTS/2		3 - high	GOSAT-2	13:00 desc																																																												X	X	X	X	X	X
HIRS		4 - fair	Nimbus-6	12:00 desc																	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-6	07:30 desc																					X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-7	14:30 asc																							X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-8	07:30 desc																									X	X	X
HIRS/2		4 - fair	NOAA-9	14:30 asc																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-10	07:30 desc																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-11	14:10 asc																														X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-12	05:10 desc																																	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	NOAA-13	14:00 asc																																			X
HIRS/2		4 - fair	NOAA-14	09:30 desc																																				X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/2		4 - fair	TIROS-N	14:30 asc																				X	X	X	X
HIRS/3		4 - fair	NOAA-15	07:23 desc																																								X	X	X	X	X	X	X	X	X	X	X	X
HIRS/3		4 - fair	NOAA-16	09:01 desc																																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/3		4 - fair	NOAA-17	07:03 desc																																												X	X	X	X	X	X	X	X	X	X	X	X
HIRS/4	Yes	4 - fair	Metop-A	08:46 desc																																																X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/4	Yes	4 - fair	Metop-B	09:30 desc																																																						X	X	X	X	X	X	X	X	X	X	X	X	X
HIRS/4		4 - fair	NOAA-18	07:46 asc																																															X	X	X	X	X
HIRS/4		4 - fair	NOAA-19	06:46 desc																																																			X	X	X	X	X	X	X	X	X	X	X	X	X
IRAS		4 - fair	FY-3A	09:05 desc																																																		X
IRAS		4 - fair	FY-3B	14:45 asc																																																				X	X	X	X	X	X	X	X	X	X	X
IRAS		4 - fair	FY-3C	09:07 desc																																																							X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-8	75°W																																				X	X	X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-9	135°W																																					X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-10	135°W																																							X	X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-11	135°W																																										X	X	X	X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-12	75°W																																											X	X	X	X	X	X	X	X	X	X
SOUNDER	No	4 - fair	GOES-13	60°W																																																X	X	X	X	X	X	X	X	X	X
SOUNDER	Yes	4 - fair	GOES-14	105°W																																																			X	X	X	X	X	X	X	X	X	X	X	X	X
SOUNDER	Yes	4 - fair	GOES-15	128°W																																																				X	X	X	X	X	X	X	X	X	X	X	X
SOUNDER		4 - fair	GOES-9 (GMS backup)	155°E																																													X	X	X	X
SOUNDER		4 - fair	GOES-10 (S-America)	60°W																																																X	X	X	X
SOUNDER		4 - fair	GOES-12 (S-America)	60°W																																																				X	X	X	X
SOUNDER (INSAT)	No	4 - fair	INSAT-3D	82°E																																																							X	X	X	X	X	X	X	X
SOUNDER (INSAT)	Yes	4 - fair	INSAT-3DR	74°E																																																										X	X	X	X	X	X	X	X	X	X
SOUNDER (INSAT)		4 - fair	INSAT-3DS	74°E																																																																X	X	X	X	X	X	X	X
VAS		4 - fair	GOES-4	135°W																						X	X	X	X	X	X	X	X	X
VAS		4 - fair	GOES-5	75°W																							X	X	X	X	X	X	X	X	X	X
VAS		4 - fair	GOES-6	135°W																									X	X	X	X	X	X	X
VAS		4 - fair	GOES-7	75°W																													X	X	X	X	X	X	X	X	X	X
METimage		4 - fair	Metop-SG-A2	09:30 desc																																																																									X	X	X	X	X	X	X	X
METimage		4 - fair	Metop-SG-A3	09:30 desc																																																																															X	X	X	X	X	X	X	X
METimage		4 - fair	Metop-SG-A1	09:30 desc																																																																		X	X	X	X	X	X	X	X
MODIS	Yes	4 - fair	Aqua	13:30 asc																																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
MODIS	Yes	4 - fair	Terra	10:30 desc																																									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
MSU-MR-MP		4 - fair	Meteor-MP N1	15:30 asc																																																																			X	X	X	X	X	X	X	X
MSU-MR-MP		4 - fair	Meteor-MP N2	09:30 desc																																																																				X	X	X	X	X	X	X	X
ABI		4 - fair	GOES-16	75.2°W																																																										X	X	X	X	X	X	X	X	X	X	X	X
ABI	Yes	4 - fair	GOES-17	137.2°W																																																												X	X	X	X	X	X	X	X	X	X	X	X
ABI		4 - fair	GOES-T	137°E																																																															X	X	X	X	X	X	X	X	X	X	X	X
ABI		4 - fair	GOES-U	75°W																																																																		X	X	X	X	X	X	X	X	X	X	X	X
AGRI	Yes	4 - fair	FY-4A	104.7°E																																																										X	X	X	X	X	X
AGRI		4 - fair	FY-4B	123.5°E																																																															X	X	X	X	X	X	X	X
AGRI		4 - fair	FY-4C	86.5°E																																																																			X	X	X	X	X	X	X	X
AGRI		4 - fair	FY-4D	105°E																																																																				X	X	X	X	X	X	X	X
AGRI		4 - fair	FY-4E	86.5°E																																																																					X	X	X	X	X	X	X	X
AGRI		4 - fair	FY-4F	105°E																																																																								X	X	X	X	X	X	X	X
AGRI		4 - fair	FY-4G	86.5°E																																																																											X	X	X	X	X	X	X	X
AHI	Yes	4 - fair	Himawari-8	140.7°E																																																								X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AHI		4 - fair	Himawari-9	140.7°E																																																										X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
AMI	Yes	4 - fair	GEO-KOMPSAT-2A	128.2°E																																																												X	X	X	X	X	X	X	X	X	X	X	X
FCI		4 - fair	MTG-I1	0°																																																																	X	X	X	X	X	X	X	X	X
FCI		4 - fair	MTG-I2	0°																																																																			X	X	X	X	X	X	X	X	X
FCI		4 - fair	MTG-I3	0°																																																																						X	X	X	X	X	X	X	X	X
FCI		4 - fair	MTG-I4	0°																																																																										X	X	X	X	X	X	X	X	X
MSU-GSM		4 - fair	Electro-M N1	14.5°W																																																																			X	X	X	X	X	X	X	X	X	X	X
MSU-GSM		4 - fair	Electro-M N2	76°E																																																																				X	X	X	X	X	X	X	X	X	X	X
MSU-GSM		4 - fair	Electro-M N3	165.8°E																																																																							X	X	X	X	X	X	X	X	X	X	X
SEVIRI		4 - fair	Meteosat-8	3.7°E																																												X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI	Yes	4 - fair	Meteosat-9	3.5°E																																															X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI	Yes	4 - fair	Meteosat-10	9.5°E																																																						X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI		4 - fair	Meteosat-11	0°																																																									X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
SEVIRI		4 - fair	Meteosat-8 (IODC)	41.5°E																																																										X	X	X	X	X	X	X
MERSI-2	Yes	4 - fair	FY-3D	13:29 asc																																																											X	X	X	X	X	X
MERSI-2		4 - fair	FY-3H	14:00 asc																																																																		X	X	X	X	X	X
MERSI-2		4 - fair	FY-3F	10:00 desc																																																																	X	X	X	X	X	X
MERSI-2		4 - fair	FY-3G	50 °																																																																	X	X	X	X	X	X
MERSI-2		4 - fair	FY-3J	50 °																																																																			X	X	X	X	X	X
VIIRS	Yes	4 - fair	NOAA-20	13:25 asc																																																											X	X	X	X	X	X	X	X
VIIRS		4 - fair	JPSS-2	13:30 asc																																																																X	X	X	X	X	X	X	X
VIIRS	Yes	4 - fair	SNPP	13:25 asc																																																					X	X	X	X	X	X	X	X	X	X	X
VIIRS		4 - fair	JPSS-3	13:30 asc																																																																					X	X	X	X	X	X	X	X
VIIRS		4 - fair	JPSS-4	13:30 asc																																																																										X	X	X	X	X	X	X	X
MSU-GS/A		5 - marginal	Arctica-M N1	63.4 °																																																															X	X	X	X	X	X	X	X	X	X	X
MSU-GS/A		5 - marginal	Arctica-M N2	63.4 °																																																																	X	X	X	X	X	X	X	X	X	X	X
MSU-GS/A		5 - marginal	Arctica-M N3	63.4 °																																																																		X	X	X	X	X	X	X	X	X	X	X
MSU-GS/A		5 - marginal	Arctica-M N4	63.4 °																																																																			X	X	X	X	X	X	X	X	X	X	X
MSU-GS/A		5 - marginal	Arctica-M N5	63.4 °																																																																			X	X	X	X	X	X	X	X	X	X	X
GLI		5 - marginal	ADEOS-2	10:30 desc																																												X	X
IMAGER (GOES 12-15)		5 - marginal	GOES-12	75°W																																											X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 12-15)	Yes	5 - marginal	GOES-13	60°W																																																X	X	X	X	X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 12-15)	Yes	5 - marginal	GOES-14	105°W																																																			X	X	X	X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 12-15)	Yes	5 - marginal	GOES-15	128°W																																																				X	X	X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 12-15)		5 - marginal	GOES-12 (S-America)	60°W																																																				X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-8	75°W																																				X	X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-9	135°W																																					X	X	X	X	X	X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-10	135°W																																							X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-11	135°W																																										X	X	X	X	X	X	X	X	X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-9 (GMS backup)	155°E																																													X	X	X	X
IMAGER (GOES 8-11)		5 - marginal	GOES-10 (S-America)	60°W																																																X	X	X	X
IMAGER (INSAT)	Yes	5 - marginal	INSAT-3D	82°E																																																							X	X	X	X	X	X	X	X	X	X
IMAGER (INSAT)	Yes	5 - marginal	INSAT-3DR	74°E																																																										X	X	X	X	X	X	X	X	X	X
IMAGER (INSAT)		5 - marginal	INSAT-3DS	74°E																																																																X	X	X	X	X	X	X	X
IMAGER (MTSAT-2)	No	5 - marginal	Himawari-7 (MTSAT-2)	145°E																																																X	X	X	X	X	X	X	X	X	X	X
JAMI		5 - marginal	Himawari-6 (MTSAT-1R)	140°E																																															X	X	X	X	X	X	X	X	X	X	X
MERSI-LL		5 - marginal	FY-3I	05:30 desc																																																																			X	X	X	X	X	X
MERSI-LL		5 - marginal	FY-3E	05:30 desc																																																															X	X	X	X	X	X
MI		5 - marginal	COMS	128.2°E																																																				X	X	X	X	X	X	X	X	X	X	X
MSU-GS		5 - marginal	Electro-L N1	29.6°W																																																					X	X	X	X	X	X
MSU-GS	Yes	5 - marginal	Electro-L N2	14.5°W																																																									X	X	X	X	X	X	X	X	X	X	X
MSU-GS		5 - marginal	Electro-L N3	76°E																																																													X	X	X	X	X	X	X	X	X	X	X
MSU-GS		5 - marginal	Electro-L N4	166°E																																																																X	X	X	X	X	X	X	X	X	X	X
MSU-GS		5 - marginal	Electro-L N5	76°E																																																																	X	X	X	X	X	X	X	X	X	X	X
OCTS		5 - marginal	ADEOS	10:30 desc																																						X	X
S-VISSR (FY-2C/D/E)		5 - marginal	FY-2C	105°E																																														X	X	X	X	X	X
S-VISSR (FY-2C/D/E)		5 - marginal	FY-2D	86.5°E																																																X	X	X	X	X	X	X	X	X	X
S-VISSR (FY-2C/D/E)	Yes	5 - marginal	FY-2E	86.5°E																																																		X	X	X	X	X	X	X	X	X	X	X
S-VISSR (FY-2F/G/H)	Yes	5 - marginal	FY-2F	112°E																																																						X	X	X	X	X	X	X	X	X	X
S-VISSR (FY-2F/G/H)	Yes	5 - marginal	FY-2G	105°E																																																								X	X	X	X	X	X	X	X
S-VISSR (FY-2F/G/H)	Yes	5 - marginal	FY-2H	79°E																																																												X	X	X	X	X
ITPR		5 - marginal	Nimbus-5	12:00 desc														X	X	X	X	X	X	X	X	X	X	X	X
SIRS-B		5 - marginal	Nimbus-4	12:00 desc												X	X	X	X	X	X	X	X	X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-1	81.3 °																	X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-2	81.3 °																			X	X
SM (Meteor-2)		5 - marginal	Meteor-2-3	81.2 °																			X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-4	81.2 °																					X	X
SM (Meteor-2)		5 - marginal	Meteor-2-5	81.2 °																					X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-6	81.2 °																						X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-7	81.3 °																							X	X
SM (Meteor-2)		5 - marginal	Meteor-2-8	82.5 °																								X	X
SM (Meteor-2)		5 - marginal	Meteor-2-9	81.3 °																								X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-10	81.2 °																									X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-11	82.5 °																										X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-12	82.5 °																											X	X
SM (Meteor-2)		5 - marginal	Meteor-2-13	82.5 °																											X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-14	82.5 °																												X	X
SM (Meteor-2)		5 - marginal	Meteor-2-15	82.5 °																													X	X
SM (Meteor-2)		5 - marginal	Meteor-2-16	82.5 °																													X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-17	82.5 °																														X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-18	82.5 °																															X	X
SM (Meteor-2)		5 - marginal	Meteor-2-19	82.5 °																																X	X
SM (Meteor-2)		5 - marginal	Meteor-2-20	82.5 °																																X	X	X
SM (Meteor-2)		5 - marginal	Meteor-2-21	82.5 °																																			X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-1	82.5 °																											X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-2	82.5 °																														X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-3	82.5 °																															X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-4	82.5 °																																	X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-5	82.5 °																																	X	X	X
SM (Meteor-3)		5 - marginal	Meteor-3-6	82.5 °																																				X	X	X
VTPR		5 - marginal	NOAA-2	14:30 asc														X	X	X	X
VTPR		5 - marginal	NOAA-3	14:30 asc															X	X	X	X
VTPR		5 - marginal	NOAA-4	14:30 asc																X	X	X	X	X
VTPR		5 - marginal	NOAA-5	14:30 asc																		X	X	X	X
SCR (Nimbus-5)		5 - marginal	Nimbus-5	12:00 desc														X	X	X	X	X	X	X	X	X	X	X	X
SI-GDR		5 - marginal	Meteor-P2	81.2 °																		X	X	X
SI-GDR		5 - marginal	Meteor-P3	10:15 asc																			X	X	X
SI-GDR		5 - marginal	Meteor-P4	10:15 asc																					X	X	X

All instruments for measuring Upward long-wave irradiance at TOA

Instruments	Relevance	Operational limitations
ERB	1 - primary
ERBE	1 - primary
ERBE (NOAA)	1 - primary
Libera	1 - primary
RBI	1 - primary
ERM-2	1 - primary
MRIR	1 - primary
CERES	2 - very high
NISTAR	2 - very high
ScaRaB	2 - very high
ERBR	2 - very high
GERB	2 - very high
ERM-1	2 - very high
FPR	2 - very high
BBR	2 - very high
AIRS	3 - high
CrIS	3 - high
GIIRS	3 - high
HIRAS	3 - high
HIRAS-2	3 - high
IASI	3 - high
IASI-NG	3 - high
IKFS-3	3 - high
IRFS-GS	3 - high
IRS	3 - high
TES-nadir	3 - high
IMG	3 - high
FORUM	3 - high
IR spectrometer	3 - high
IRIS-B	3 - high
IRIS-D	3 - high
IKFS-2	3 - high
TANSO-FTS	3 - high
TANSO-FTS/2	3 - high
HIRS	4 - fair
HIRS/2	4 - fair
HIRS/3	4 - fair
HIRS/4	4 - fair
IRAS	4 - fair
SOUNDER	4 - fair
SOUNDER (INSAT)	4 - fair
VAS	4 - fair
METimage	4 - fair
MODIS	4 - fair
MSU-MR-MP	4 - fair
ISR	4 - fair
ABI	4 - fair
AGRI	4 - fair
AHI	4 - fair
AMI	4 - fair
FCI	4 - fair
MSU-GSM	4 - fair
SEVIRI	4 - fair
MERSI-2	4 - fair
VIIRS	4 - fair
MSU-GS/A	5 - marginal
GLI	5 - marginal
IMAGER (GOES 12-15)	5 - marginal
IMAGER (GOES 8-11)	5 - marginal
IMAGER (INSAT)	5 - marginal
IMAGER (MTSAT-2)	5 - marginal
JAMI	5 - marginal
MERSI-LL	5 - marginal
MI	5 - marginal
MSU-GS	5 - marginal
OCTS	5 - marginal
S-VISSR (FY-2C/D/E)	5 - marginal
S-VISSR (FY-2F/G/H)	5 - marginal
ITPR	5 - marginal
SIRS-B	5 - marginal
SM (Meteor-2)	5 - marginal
SM (Meteor-3)	5 - marginal
VTPR	5 - marginal
SCR (Nimbus-5)	5 - marginal
SI-GDR	5 - marginal