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Cluster Auxiliary Data

ResourceID
spase://ESA/NumericalData/Cluster/Ephemeris/SummaryParameter/PT60S

Description
Cluster Auxiliary Parameters are produced by the Cluster Hungarian Data Center in Budapest. These data are the primary orbit product supplied to users by the Cluster Active Archive. The data contain Position, Velocity and Attitude of four Cluster spacecraft. For additional details on the methodology behind these data see: Robert P., et al., "Tetrahedron Geometric Factors", p. 328, Analysis Methods of Multi-Spacecraft Data, ed. G. Paschmann and P. Daly, 1998, ESA and the International Space Institute, Bern.

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Version:2.3.0

NumericalData

ResourceID
spase://ESA/NumericalData/Cluster/Ephemeris/SummaryParameter/PT60S
ResourceHeader
ResourceName
Cluster Auxiliary Data
ReleaseDate
2021-03-29 17:14:50Z
Description
Cluster Auxiliary Parameters are produced by the Cluster Hungarian Data Center in Budapest. These data are the primary orbit product supplied to users by the Cluster Active Archive. The data contain Position, Velocity and Attitude of four Cluster spacecraft. For additional details on the methodology behind these data see: Robert P., et al., "Tetrahedron Geometric Factors", p. 328, Analysis Methods of Multi-Spacecraft Data, ed. G. Paschmann and P. Daly, 1998, ESA and the International Space Institute, Bern.
Contacts
Role Person StartDate StopDate Note
1. DataProducer spase://SMWG/Person/M.Tatrallyay
PriorIDs
spase://VMO/NumericalData/Cluster2/Ephemeris/PT1M
spase://VMO/NumericalData/Cluster2/Ephemeris/SummaryParameter/PT1M
spase://VMO/NumericalData/Cluster/Ephemeris/SummaryParameter/PT1M
spase://VSPO/NumericalData/Cluster/Ephemeris/SummaryParameter/PT60S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux/
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux/
Description
In CDF via HTTP from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=CL_SP_AUX&index=sp_phys
ProductKey
CL_SP_AUX
Format
CDF
AccessDirectoryTemplate
private/cdaw_data/cluster_private/st/aux/$Y
AccessFilenameTemplate
cl_sp_aux_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/CL_SP_AUX/clientLibraryExample/
Style
WebService
ProductKey
CL_SP_AUX
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
InstrumentIDs
spase://SMWG/Instrument/Cluster-Rumba/Ephemeris
spase://SMWG/Instrument/Cluster-Salsa/Ephemeris
spase://SMWG/Instrument/Cluster-Samba/Ephemeris
spase://SMWG/Instrument/Cluster-Tango/Ephemeris
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
2000-08-22 00:00:30
RelativeStopDate
-P3M
Cadence
PT1M
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosphere.Polar
ObservedRegion
Earth.Magnetosphere.RadiationBelt
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.Ionosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Epoch
ParameterKey
Epoch__CL_SP_AUX
Description
Interval centered time tag rounded to the nearest millisecond
Units
ms
UnitsConversion
1.0e-3>s
ValidMin
6.2924602e13
ValidMax
6.34295223e13
Support
SupportQuantity
Temporal
Parameter #2
Name
Spacecraft Status
ParameterKey
sc_status__CL_SP_AUX
Description
Spacecraft Status, 0 = Bad Value, 1 = Use with caution, 2 = OK, 255 = Not Supplied
Cadence
PT1M
Structure
Size
5
ValidMin
0
ValidMax
255
Support
SupportQuantity
Other
Parameter #3
Name
Spacecraft Orbit Number
ParameterKey
sc_orbit_num__CL_SP_AUX
Description
Spacecraft orbit number including phase. Values are of the form orbit.phase
Cadence
PT1M
ValidMin
0
ValidMax
1000
Support
SupportQuantity
Other
Parameter #4
Name
Reference Spacecraft Position GSE
ParameterKey
sc_r_xyz_gse__CL_SP_AUX
Description
Position, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-140000
ValidMax
140000
Element
Name
GSE Y
Index
1
ValidMin
-140000
ValidMax
140000
Element
Name
GSE Z
Index
2
ValidMin
-140000
ValidMax
140000
Support
SupportQuantity
Positional
Parameter #5
Name
Reference Spacecraft Velocity GSE
ParameterKey
sc_v_xyz_gse__CL_SP_AUX
Description
Velocity, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km/s
UnitsConversion
1.0e3>m s^-1
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-10
ValidMax
10
Element
Name
GSE Y
Index
1
ValidMin
-10
ValidMax
10
Element
Name
GSE Z
Index
2
ValidMin
-10
ValidMax
10
Support
SupportQuantity
Velocity
Parameter #6
Name
Spacecraft 1 Position Relative to Reference Spacecraft
ParameterKey
sc_dr1_xyz_gse__CL_SP_AUX
Description
Offset, in GSE, of Spacecraft 1 from the reference spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Y
Index
1
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Z
Index
2
ValidMin
-100000
ValidMax
100000
Support
SupportQuantity
Positional
Parameter #7
Name
Spacecraft 2 Position Relative to Reference Spacecraft
ParameterKey
sc_dr2_xyz_gse__CL_SP_AUX
Description
Offset, in GSE, of Spacecraft 2 from the reference spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Y
Index
1
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Z
Index
2
ValidMin
-100000
ValidMax
100000
Support
SupportQuantity
Positional
Parameter #8
Name
Spacecraft 3 Position Relative to Reference Spacecraft
ParameterKey
sc_dr3_xyz_gse__CL_SP_AUX
Description
Offset, in GSE, of Spacecraft 3 from the reference spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Y
Index
1
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Z
Index
2
ValidMin
-100000
ValidMax
100000
Support
SupportQuantity
Positional
Parameter #9
Name
Spacecraft 4 Position Relative to Reference Spacecraft
ParameterKey
sc_dr4_xyz_gse__CL_SP_AUX
Description
Offset, in GSE, of Spacecraft 4 from the reference spacecraft. Cluster 3 is used as the reference spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1.0e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
GSE X
Index
0
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Y
Index
1
ValidMin
-100000
ValidMax
100000
Element
Name
GSE Z
Index
2
ValidMin
-100000
ValidMax
100000
Support
SupportQuantity
Positional
Parameter #10
Name
Spacecraft 1 Axis Latitude GSE
ParameterKey
sc_at1_lat__CL_SP_AUX
Description
GSE latitude of spacecraft 1 axis, angle from Ecliptic Plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #11
Name
Spacecraft 1 Axis Longitude GSE
ParameterKey
sc_at1_long__CL_SP_AUX
Description
GSE longitude of spacecraft 1 axis, angle from x in x-y GSE plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #12
Name
Spacecraft 2 Axis Latitude GSE
ParameterKey
sc_at2_lat__CL_SP_AUX
Description
GSE latitude of spacecraft 2 axis, angle from Ecliptic Plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #13
Name
Spacecraft 2 Axis Longitude GSE
ParameterKey
sc_at2_long__CL_SP_AUX
Description
GSE longitude of spacecraft 2 axis, angle from x in x-y GSE plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #14
Name
Spacecraft 3 Axis Latitude GSE
ParameterKey
sc_at3_lat__CL_SP_AUX
Description
GSE latitude of spacecraft 3 axis, angle from Ecliptic Plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #15
Name
Spacecraft 3 Axis Longitude GSE
ParameterKey
sc_at3_long__CL_SP_AUX
Description
GSE longitude of spacecraft 3 axis, angle from x in x-y GSE plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #16
Name
Spacecraft 4 Axis Latitude GSE
ParameterKey
sc_at4_lat__CL_SP_AUX
Description
GSE latitude of spacecraft 4 axis, angle from Ecliptic Plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #17
Name
Spacecraft 4 Axis Longitude GSE
ParameterKey
sc_at4_long__CL_SP_AUX
Description
GSE longitude of spacecraft 4 axis, angle from x in x-y GSE plane
Cadence
PT1M
Units
degrees
UnitsConversion
1.0>degrees
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
ValidMin
0
ValidMax
360
Support
SupportQuantity
Positional
Parameter #18
Name
Tetrahedron Quality G
ParameterKey
sc_config_QG__CL_SP_AUX
Description
Spacecraft Quality Shape, (vol/ideal) + (surf/ideal) + 1
Cadence
PT1M
ValidMin
1
ValidMax
3
Support
SupportQuantity
Other
Parameter #19
Name
Tetrahedron Quality R
ParameterKey
sc_config_QR__CL_SP_AUX
Description
Spacecraft Quality Shape, norm*(vol/sphere vol)^(1/3)
Cadence
PT1M
ValidMin
0
ValidMax
1
Support
SupportQuantity
Other
Parameter #20
Name
Minimum Distance Between Spacecraft
ParameterKey
sc_dr_min__CL_SP_AUX
Description
Minimum distance between spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1e3>m
ValidMin
0
ValidMax
1e7
Support
SupportQuantity
Positional
Parameter #21
Name
Maximum Distance Between Spacecraft
ParameterKey
sc_dr_max__CL_SP_AUX
Description
Maximum distance between spacecraft
Cadence
PT1M
Units
km
UnitsConversion
1e3>m
ValidMin
0
ValidMax
1e7
Support
SupportQuantity
Positional
Parameter #22
Name
Rotation angle GSE to GSM
ParameterKey
gse_gsm__CL_SP_AUX
Description
Rotation angle GSE to GSM, positive from +z towards +y
Cadence
PT1M
Units
degrees
UnitsConversion
1>degrees
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Positional
Parameter #23
Name
Dipole tilt
ParameterKey
dipole_tilt__CL_SP_AUX
Description
Dipole tilt in GSM z-x plane, positive from +z towards +x
Cadence
PT1M
Units
degrees
UnitsConversion
1>degrees
ValidMin
-90
ValidMax
90
Support
SupportQuantity
Other
Parameter #24
Name
Tetrahedron size L
ParameterKey
sc_geom_size__CL_SP_AUX
Description
Tetrahedron size
Cadence
PT1M
Units
km
UnitsConversion
1e3>m
ValidMin
0
ValidMax
1e7
Support
SupportQuantity
Other
Parameter #25
Name
Tetrahedron Elongation
ParameterKey
sc_geom_elong__CL_SP_AUX
Description
Tetrahedron elongation
Cadence
PT1M
ValidMin
0
ValidMax
1
Support
SupportQuantity
Other
Parameter #26
Name
Tetrahedron Planarity
ParameterKey
sc_geom_planarity__CL_SP_AUX
Description
Tetrahedron planarity
Cadence
PT1M
ValidMin
0
ValidMax
1
Support
SupportQuantity
Other
Parameter #27
Name
Direction of elongation
ParameterKey
sc_geom_E_dir_gse__CL_SP_AUX
Description
direction of elongation, direction cosines
Cadence
PT1M
Structure
Size
3
ValidMin
-1
ValidMax
1
Support
SupportQuantity
Other
Parameter #28
Name
Normal of Planarity
ParameterKey
sc_geom_P_nor_gse__CL_SP_AUX
Description
normal of planarity, direction cosines
Cadence
PT1M
Structure
Size
3
ValidMin
-1
ValidMax
1
Support
SupportQuantity
Other
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Last Updated: 2021-03-29