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 (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

Select WIGOS subcomponents

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 exploited technology (satellite-to-satellite tracking, accelerometer, positioning systems, altimeter).

 

RATING CRITERIA:

1

  • Satellite-to-satellite tracking system

2

  • Accelerometer

3

  • Dedicated satellite equipped by laser retroreflectors
  • Laser retroreflector array
  • Radio positioning system

4

  • Radar altimeter
  • Lidar altimeter

5

  • GNSS receiver
  • Star tracker
Measurement timeline for Gravity field

Definition:

Indicative of the statics and dynamics of the lithosphere and the mantle - Physical unit: [ mGal ] where : 1 Gal = 0.01 m.s-2

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

Found 195 results

This table has a large number of results.
Hide inactive instruments
Instrument NRT? Relevance Satellite Orbit
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
2045
2046
2047
2048
2049
2050
2051
2052
HAIRS Important noteNo1 - primaryGRACE (2 sats)89 °
X
XXXXXXXXXXXXXX
X
HAIRS Important note1 - primaryGRACE-FO (2 sats)89 °
X
XXXXX
SSTI1 - primaryGOCE06:00 asc
X
XXX
X
ACC Important note2 - very highSWARM-C87.35 °
X
XXXXXXXX
ACC Important note2 - very highSWARM-B87.75 °
X
XXXXXXXX
ACC Important note2 - very highSWARM-A87.35 °
X
XXXXXXXX
EGG2 - very highGOCE06:00 asc
X
XXX
X
STAR2 - very highCHAMP87 °
X
XXXXXXXXX
X
SuperSTAR Important noteNo2 - very highGRACE (2 sats)89 °
X
XXXXXXXXXXXXXX
X
SuperSTAR Important note2 - very highGRACE-FO (2 sats)89 °
X
XXXXX
LR3 - highSTARLETTE49.8 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
LR3 - highSTELLA98.6 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
LRA (ASI)3 - highLAGEOS-1109.8 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
LRA (ASI)3 - highLAGEOS-252.6 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
LRA (ASI)3 - highLARES-169.5 °
X
XXXXXXXXXXXXXXXXXX
LRA (ASI)3 - highLARES-270.16 °XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
RRA3 - highGFZ-151.6 °
X
XXX
X
RRA (CNES)3 - highDiadéme-139.9 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
RRA (CNES)3 - highDiadéme-239.4 °
X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
LRA (CNES)3 - highSARAL05:56 asc
X
XXXXXXXX
LRA (KARI)3 - highSTSat-2C80 °
X
X
LRA (NASA)3 - highGFO108 °
X
XXXXXXXXX
X
LRA (NASA)3 - highHY-2A06:00 desc
X
XXXXXXXXXX
LRA (NASA)3 - highICESat94 °
X
XXXXXX
X
LRA (NASA)3 - highICESat-294 °
X
XXX
LRA (NASA)3 - highJASON-166 °
X
XXXXXXXXXXX
X
LRA (NASA)3 - highJASON-266 °
X
XXXXXXXXXX
X
LRA (NASA)Yes3 - highJASON-366 °
X
XXXXX
LRA (NASA)3 - highTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
LRA (NASA)3 - highSentinel-6A66 °
X
XXXXXXX
LRA (NASA)3 - highSentinel-6B66 °XXXXXXXX
LRA (NASA)3 - highHY-2B06:00 desc
X
XXXXX
LRA (NASA)3 - highHY-2C66 °
X
XXXXX
LRA (NASA)3 - highHY-2D66 °
X
XXXXX
LRA (NASA)3 - highHY-2E06:00 descXXXXXX
LRA (NASA)3 - highHY-2F66 °XXXXXX
LRA (NASA)3 - highHY-2G66 °XXXXXX
LRR (DLR)3 - highCHAMP87 °
X
XXXXXXXXX
X
LRR (DLR)No3 - highGRACE (2 sats)89 °
X
XXXXXXXXXXXXXX
X
LRR (DLR) Important note3 - highGRACE-FO (2 sats)89 °
X
XXXXX
LRR (DLR)3 - highKOMPSAT-506:00 asc
X
XXXXXXXX
LRR (DLR)3 - highSWARM-C87.35 °
X
XXXXXXXX
LRR (DLR)3 - highSWARM-B87.75 °
X
XXXXXXXX
LRR (DLR)3 - highSWARM-A87.35 °
X
XXXXXXXX
LRR (DLR)3 - highSEOSAR/Paz06:00 asc
X
XXXXX
LRR (ESA)3 - highCryoSat92 °
X
LRR (ESA)No3 - highCryoSat-292 °
X
XXXXXXXXXXXXXX
LRR (ESA)3 - highEnvisat10:00 desc
X
XXXXXXXXX
X
LRR (ESA)3 - highERS-110:30 desc
X
XXXXXXXX
X
LRR (ESA)3 - highERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
LRR (ESA)3 - highGOCE06:00 asc
X
XXX
X
LRR (ESA)Yes3 - highSentinel-3A10:00 desc
X
XXXXXXX
LRR (ESA)Yes3 - highSentinel-3B10:00 desc
X
XXXXXXX
LRR (ESA)3 - highSentinel-3C10:00 descXXXXXXXX
LRR (ESA)3 - highSentinel-3D10:00 descXXXXXXXX
LRR (NASA)3 - highSeaSat108 °
X
RIS3 - highADEOS10:30 desc
X
X
DORIS3 - highCryoSat92 °
X
DORISNo3 - highCryoSat-292 °
X
XXXXXXXXXXXXXX
DORIS3 - highEnvisat10:00 desc
X
XXXXXXXXX
X
DORIS3 - highHY-2A06:00 desc
X
XXXXXXXXXX
DORIS3 - highJASON-166 °
X
XXXXXXXXXXX
X
DORIS3 - highJASON-266 °
X
XXXXXXXXXX
X
DORISYes3 - highJASON-366 °
X
XXXXX
DORIS3 - highSARAL05:56 asc
X
XXXXXXXX
DORISYes3 - highSentinel-3A10:00 desc
X
XXXXXXX
DORIS3 - highSPOT-210:30 desc
X
XXXXXXXXXXXXXXXXXX
X
DORIS3 - highSPOT-310:30 desc
X
XX
X
DORIS3 - highSPOT-410:30 desc
X
XXXXXXXXXXXXXX
X
DORIS3 - highSPOT-510:30 desc
X
XXXXXXXXXXXX
X
DORIS3 - highTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
DORIS3 - highSentinel-6A66 °
X
XXXXXXX
DORIS3 - highSentinel-6B66 °XXXXXXXX
DORIS3 - highHY-2B06:00 desc
X
XXXXX
DORIS3 - highHY-2C66 °
X
XXXXX
DORIS3 - highHY-2D66 °
X
XXXXX
DORIS3 - highHY-2E06:00 descXXXXXX
DORIS3 - highHY-2F66 °XXXXXX
DORIS3 - highHY-2G66 °XXXXXX
DORISYes3 - highSentinel-3B10:00 desc
X
XXXXXXX
DORIS3 - highSentinel-3C10:00 descXXXXXXXX
DORIS3 - highSentinel-3D10:00 descXXXXXXXX
PRARE Important note3 - highERS-110:30 desc
X
PRARE Important note3 - highERS-210:30 desc
X
XXXXXXXXXXX
X
PRARE3 - highMeteor-3-682.5 °
X
X
X
NRA4 - fairTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
Poseidon-24 - fairJASON-166 °
X
XXXXXXXXXXX
X
Poseidon-34 - fairJASON-266 °
X
XXXXXXXXXX
X
Poseidon-3BYes4 - fairJASON-366 °
X
XXXXX
Poseidon-44 - fairSentinel-6A66 °
X
XXXXXXX
Poseidon-44 - fairSentinel-6B66 °XXXXXXXX
SSALT4 - fairTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
ALT (high)4 - fairHY-2C66 °
X
XXXXX
ALT (high)4 - fairHY-2D66 °
X
XXXXX
ALT (high)4 - fairHY-2F66 °XXXXXX
ALT (high)4 - fairHY-2G66 °XXXXXX
ALT (SeaSat)4 - fairSeaSat108 °
X
ALT (sso)4 - fairHY-2A06:00 desc
X
XXXXXXXXXX
ALT (sso)4 - fairHY-2B06:00 desc
X
XXXXX
ALT (sso)4 - fairHY-2E06:00 descXXXXXX
AltiKa4 - fairSARAL05:56 asc
X
XXXXXXXX
Altimeter4 - fairSWOT78 °XXXX
Altimeter (COMPIRA)4 - fairCOMPIRA51 °XXXXXX
GFO-RA4 - fairGFO108 °
X
XXXXXXXXX
X
GRA4 - fairGEOSat108 °
X
XXXX
X
RA4 - fairERS-110:30 desc
X
XXXXXXXX
X
RA4 - fairERS-210:30 desc
X
XXXXXXXXXXXXXXX
X
RA-24 - fairEnvisat10:00 desc
X
XXXXXXXXX
X
SIRAL4 - fairCryoSat92 °
X
SIRALNo4 - fairCryoSat-292 °
X
XXXXXXXXXXXXXX
SRALYes4 - fairSentinel-3A10:00 desc
X
XXXXXXX
SRALYes4 - fairSentinel-3B10:00 desc
X
XXXXXXX
SRAL4 - fairSentinel-3C10:00 descXXXXXXXX
SRAL4 - fairSentinel-3D10:00 descXXXXXXXX
KaRIN4 - fairSWOT78 °XXXX
SHIOSAI4 - fairCOMPIRA51 °XXXXXX
SWIM4 - fairCFOSAT07:00 desc
X
XXXX
SWIM4 - fairCFOSAT follow-on07:00 descXXXXXX
ATLAS4 - fairICESat-294 °
X
XXX
GEDI Lidar4 - fairISS GEDI51.6 °
X
XXX
GLAS4 - fairICESat94 °
X
XXXXXX
X
MOLI lidar4 - fairISS MOLI51.6 °XXXXXX
DDMI5 - marginalCYGNSS (8 sats)35 °
X
XXXXXXX
GAP5 - marginalCASSIOPE80 °
X
XXXXXXXXXXX
GPS (ESA)Yes5 - marginalSentinel-3A10:00 desc
X
XXXXXXX
GPS (ESA)5 - marginalSMOS06:00 asc
X
XXXXXXXXXXXX
GPS (ESA)5 - marginalSWARM-C87.35 °
X
XXXXXXXX
GPS (ESA)5 - marginalSWARM-B87.75 °
X
XXXXXXXX
GPS (ESA)5 - marginalSentinel-6A66 °
X
XXXXXXX
GPS (ESA)5 - marginalSentinel-6B66 °XXXXXXXX
GPS (ESA)5 - marginalSWARM-A87.35 °
X
XXXXXXXX
GPS (ESA)Yes5 - marginalSentinel-3B10:00 desc
X
XXXXXXX
GPS (ESA)5 - marginalSentinel-3C10:00 descXXXXXXXX
GPS (ESA)5 - marginalSentinel-3D10:00 descXXXXXXXX
GPS (NASA)5 - marginalLandsat-410:00 desc
X
XXXXXXXXXXX
GPS (NASA)5 - marginalLandsat-509:45 desc
X
XXXXXXXXXXXXXXXXXXXXXXXXXX
X
GPSDR5 - marginalTOPEX-Poseidon66 °
X
XXXXXXXXXXXX
X
PES5 - marginalIonosphere N1 & N2TBDXXXX
PES5 - marginalIonosphere N3 & N4TBDXXXX
TRSR5 - marginalGFO108 °
X
XXXXXXXXX
X
TRSR5 - marginalICESat94 °
X
XXXXXX
X
TRSR5 - marginalICESat-294 °
X
XXX
TRSR Important note5 - marginalJASON-166 °
X
XXXXXXX
X
TRSR5 - marginalJASON-266 °
X
XXXXXXXXXX
X
TRSRYes5 - marginalJASON-366 °
X
XXXXX
AOPOD5 - marginalKOMPSAT-506:00 asc
X
XXXXXXXX
ARMA-MP5 - marginalMeteor-MP N115:30 ascXXXXXXXX
ARMA-MP5 - marginalMeteor-MP N209:30 descXXXXXXXX
BlackJack (CHAMP) Important note5 - marginalCHAMP87 °
X
XXXXXXX
X
BlackJack (GRACE) Important noteNo5 - marginalGRACE (2 sats)89 °
X
XXXXXXXXXXXXXX
X
CION5 - marginalCICERO
X
XXXXXXXXXXXXXXXXXXXXXXX
CORISS5 - marginalC/NOFS13 °
X
XXXXXX
X
GNOS Important noteYes5 - marginalFY-3C09:07 desc
X
XXXXXXXX
GNOSYes5 - marginalFY-3D13:29 asc
X
XXXXX
GNOS-25 - marginalFY-3E05:30 desc
X
XXXXX
GNOS-25 - marginalFY-3H14:00 asc
X
XXXXX
GNOS-25 - marginalFY-3F10:00 desc
X
XXXXX
GNOS-25 - marginalFY-3I05:30 descXXXXXX
GNOS-25 - marginalFY-3G50 °
X
XXXXX
GNOS-25 - marginalFY-3J50 °
X
XXXXX
GNSS-RO (Sentinel-6)5 - marginalSentinel-6A66 °
X
XXXXXXX
GNSS-RO (Sentinel-6)5 - marginalSentinel-6B66 °XXXXXXXX
GOLPE5 - marginalSAC-C10:20 desc
X
XXXXXXXXXXXX
X
GPS/MET5 - marginalOrbView-1/MicroLab70 °
X
XX
GRASYes5 - marginalMetop-A08:46 desc
X
XXXXXXXXXXXXXXX
GRASYes5 - marginalMetop-B09:30 desc
X
XXXXXXXXXXXX
GRAS5 - marginalMetop-C09:30 desc
X
XXXXXXXXX
IGOR (COSMIC) Important noteNo5 - marginalCOSMIC-172 °
X
XXXXXXXXXXXXX
X
IGOR (TacSat-2)5 - marginalTacSat-240 °
X
X
Pyxis-RO5 - marginalGNOMESTBD
X
XXXXXXXXXXXXXXXXXXXX
RO5 - marginalMetop-SG-A209:30 descXXXXXXXX
RO5 - marginalMetop-SG-A309:30 descXXXXXXXX
RO5 - marginalMetop-SG-B109:30 descXXXXXXXX
RO5 - marginalMetop-SG-B209:30 descXXXXXXXX
RO5 - marginalMetop-SG-B309:30 descXXXXXXXX
RO5 - marginalMetop-SG-A109:30 descXXXXXXXX
ROHPP5 - marginalSEOSAR/Paz06:00 asc
X
XXXXX
ROSA Important note5 - marginalMegha-Tropiques20 °
X
XXXXXXX
X
ROSA Important note5 - marginalSAC-D06:00 desc
X
XXX
X
ROSA (OceanSat)No5 - marginalOceanSat-211:53 desc
X
XXXXXXXXXXXX
STRATOS5 - marginalLemur-2
X
XXXXXXXXXXXXXXXXXXXXXXXXX
TGRS (COSMIC-2)5 - marginalCOSMIC-224 °
X
XXXXXXX
TOR5 - marginalTerraSAR-X06:00 desc
X
XXXXXXXXXXXXXXXXX
TOR5 - marginalTanDEM-X06:00 desc
X
XXXXXXXXXXXXXXXX
Tri-G (GRACE-FO) Important note5 - marginalGRACE-FO (2 sats)89 °
X
XXXXX
TRSR (Ørsted) Important noteNo5 - marginalØrsted96.5 °
X
XXXXXXX
ASC5 - marginalCHAMP87 °
X
XXXXXXXXX
X
ASC Important noteNo5 - marginalØrsted96.5 °
X
XXXXXXX
IST5 - marginalSAC-C10:20 desc
X
XXXXXXXXXXXX
X
SCA (GRACE) Important noteNo5 - marginalGRACE (2 sats)89 °
X
XXXXXXXXXXXXXX
X
SCA (GRACE) Important note5 - marginalGRACE-FO (2 sats)89 °
X
XXXXX
STA5 - marginalSMOS06:00 asc
X
XXXXXXXXXXXX
STR (SWARM)5 - marginalSWARM-C87.35 °
X
XXXXXXXX
STR (SWARM)5 - marginalSWARM-B87.75 °
X
XXXXXXXX
STR (SWARM)5 - marginalSWARM-A87.35 °
X
XXXXXXXX
All instruments for measuring Gravity field
Instruments Relevance Operational limitations
HAIRS1 - primary
SSTI1 - primary
ACC2 - very high
EGG2 - very high
STAR2 - very high
SuperSTAR2 - very high
LR3 - high
LRA (ASI)3 - high
RRA3 - high
RRA (CNES)3 - high
LRA (CNES)3 - high
LRA (KARI)3 - high
LRA (NASA)3 - high
LRR (DLR)3 - high
LRR (ESA)3 - high
LRR (NASA)3 - high
RIS3 - high
DORIS3 - high
PRARE3 - high
NRA4 - fair
Poseidon-24 - fair
Poseidon-34 - fair
Poseidon-3B4 - fair
Poseidon-44 - fair
SSALT4 - fair
ALT (high)4 - fair
ALT (SeaSat)4 - fair
ALT (sso)4 - fair
AltiKa4 - fair
Altimeter4 - fair
Altimeter (COMPIRA)4 - fair
GFO-RA4 - fair
GRA4 - fair
RA4 - fair
RA-24 - fair
SIRAL4 - fair
SRAL4 - fair
KaRIN4 - fair
SHIOSAI4 - fair
SWIM4 - fair
ATLAS4 - fair
GEDI Lidar4 - fair
GLAS4 - fair
MOLI lidar4 - fair
VCL4 - fair
DDMI5 - marginal
GAP5 - marginal
GPS (ESA)5 - marginal
GPS (NASA)5 - marginal
GPSDR5 - marginal
PES5 - marginal
TRSR5 - marginal
AOPOD5 - marginal
ARMA-MP5 - marginal
BlackJack (CHAMP)5 - marginal
BlackJack (GRACE)5 - marginal
CION5 - marginal
CORISS5 - marginal
GNOS5 - marginal
GNOS-25 - marginal
GNSS-RO5 - marginal
GNSS-RO (Sentinel-6)5 - marginal
GOLPE5 - marginal
GPS/MET5 - marginal
GRAS5 - marginal
IGOR (COSMIC)5 - marginal
IGOR (TacSat-2)5 - marginal
IGOR (TanDEM)5 - marginal
Pyxis-RO5 - marginal
Radiomet5 - marginal
RO5 - marginal
ROHPP5 - marginal
ROSA5 - marginal
ROSA (OceanSat)5 - marginal
STRATOS5 - marginal
TGRS (COSMIC-2)5 - marginal
TOR5 - marginal
Tri-G (GRACE-FO)5 - marginal
TRSR (Ørsted)5 - marginal
ASC5 - marginal
IST5 - marginal
SCA (GRACE)5 - marginal
STA5 - marginal
STR (SWARM)5 - marginal