2.2.2 spase://VMO/NumericalData/Cluster/Ephemeris/SummaryParameter/PT1M Cluster Auxiliary Data 2011-02-04T15:51:43Z 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. spase://SMWG/Person/M.Tatrallyay DataProducer spase://VMO/NumericalData/Cluster2/Ephemeris/PT1M spase://VMO/NumericalData/Cluster2/Ephemeris/SummaryParameter/PT1M spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb FTP access to files at SPDF ftp://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux HTTP access to files at SPDF http://spdf.gsfc.nasa.gov/pub/data/cluster/cl/sp/aux In CDF via HTTP from SPDF CDAWeb http://cdaweb.gsfc.nasa.gov/ CL_SP_AUX CDF spase://SMWG/Instrument/Cluster-Rumba/Ephemeris spase://SMWG/Instrument/Cluster-Salsa/Ephemeris spase://SMWG/Instrument/Cluster-Samba/Ephemeris spase://SMWG/Instrument/Cluster-Tango/Ephemeris Ephemeris 2000-08-22T00:00:30 -P3M PT1M Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosphere.Polar Earth.Magnetosphere.RadiationBelt Earth.NearSurface.AuroralRegion Earth.NearSurface.Ionosphere Earth.NearSurface.Plasmasphere Earth.NearSurface.PolarCap Heliosphere.NearEarth Epoch Epoch__CL_SP_AUX Interval centered time tag rounded to the nearest millisecond ms 1.0e-3>s 6.2924602e13 6.34295223e13 Temporal Spacecraft Status sc_status__CL_SP_AUX Spacecraft Status, 0 = Bad Value, 1 = Use with caution, 2 = OK, 255 = Not Supplied PT1M 5 0 255 Other Spacecraft Orbit Number sc_orbit_num__CL_SP_AUX Spacecraft orbit number including phase. Values are of the form orbit.phase PT1M 0 1000 Other Reference Spacecraft Position GSE sc_r_xyz_gse__CL_SP_AUX Position, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft PT1M km 1.0e3>m Cartesian GSE 3 GSE X 0 -140000 140000 GSE Y 1 -140000 140000 GSE Z 2 -140000 140000 Positional Reference Spacecraft Velocity GSE sc_v_xyz_gse__CL_SP_AUX Velocity, in GSE, of the Reference Spacecraft. Cluster 3 is used as the reference spacecraft PT1M km/s 1.0e3>m s^-1 Cartesian GSE 3 GSE X 0 -10 10 GSE Y 1 -10 10 GSE Z 2 -10 10 Velocity Spacecraft 1 Position Relative to Reference Spacecraft sc_dr1_xyz_gse__CL_SP_AUX Offset, in GSE, of Spacecraft 1 from the reference spacecraft. Cluster 3 is used as the reference spacecraft PT1M km 1.0e3>m Cartesian GSE 3 GSE X 0 -100000 100000 GSE Y 1 -100000 100000 GSE Z 2 -100000 100000 Positional Spacecraft 2 Position Relative to Reference Spacecraft sc_dr2_xyz_gse__CL_SP_AUX Offset, in GSE, of Spacecraft 2 from the reference spacecraft. Cluster 3 is used as the reference spacecraft PT1M km 1.0e3>m Cartesian GSE 3 GSE X 0 -100000 100000 GSE Y 1 -100000 100000 GSE Z 2 -100000 100000 Positional Spacecraft 3 Position Relative to Reference Spacecraft sc_dr3_xyz_gse__CL_SP_AUX Offset, in GSE, of Spacecraft 3 from the reference spacecraft. Cluster 3 is used as the reference spacecraft PT1M km 1.0e3>m Cartesian GSE 3 GSE X 0 -100000 100000 GSE Y 1 -100000 100000 GSE Z 2 -100000 100000 Positional Spacecraft 4 Position Relative to Reference Spacecraft sc_dr4_xyz_gse__CL_SP_AUX Offset, in GSE, of Spacecraft 4 from the reference spacecraft. Cluster 3 is used as the reference spacecraft PT1M km 1.0e3>m Cartesian GSE 3 GSE X 0 -100000 100000 GSE Y 1 -100000 100000 GSE Z 2 -100000 100000 Positional Spacecraft 1 Axis Latitude GSE sc_at1_lat__CL_SP_AUX GSE latitude of spacecraft 1 axis, angle from Ecliptic Plane PT1M degrees 1.0>degrees Cartesian GSE -90 90 Positional Spacecraft 1 Axis Longitude GSE sc_at1_long__CL_SP_AUX GSE longitude of spacecraft 1 axis, angle from x in x-y GSE plane PT1M degrees 1.0>degrees Cartesian GSE 0 360 Positional Spacecraft 2 Axis Latitude GSE sc_at2_lat__CL_SP_AUX GSE latitude of spacecraft 2 axis, angle from Ecliptic Plane PT1M degrees 1.0>degrees Cartesian GSE -90 90 Positional Spacecraft 2 Axis Longitude GSE sc_at2_long__CL_SP_AUX GSE longitude of spacecraft 2 axis, angle from x in x-y GSE plane PT1M degrees 1.0>degrees Cartesian GSE 0 360 Positional Spacecraft 3 Axis Latitude GSE sc_at3_lat__CL_SP_AUX GSE latitude of spacecraft 3 axis, angle from Ecliptic Plane PT1M degrees 1.0>degrees Cartesian GSE -90 90 Positional Spacecraft 3 Axis Longitude GSE sc_at3_long__CL_SP_AUX GSE longitude of spacecraft 3 axis, angle from x in x-y GSE plane PT1M degrees 1.0>degrees Cartesian GSE 0 360 Positional Spacecraft 4 Axis Latitude GSE sc_at4_lat__CL_SP_AUX GSE latitude of spacecraft 4 axis, angle from Ecliptic Plane PT1M degrees 1.0>degrees Cartesian GSE -90 90 Positional Spacecraft 4 Axis Longitude GSE sc_at4_long__CL_SP_AUX GSE longitude of spacecraft 4 axis, angle from x in x-y GSE plane PT1M degrees 1.0>degrees Cartesian GSE 0 360 Positional Tetrahedron Quality G sc_config_QG__CL_SP_AUX Spacecraft Quality Shape, (vol/ideal) + (surf/ideal) + 1 PT1M 1 3 Other Tetrahedron Quality R sc_config_QR__CL_SP_AUX Spacecraft Quality Shape, norm*(vol/sphere vol)^(1/3) PT1M 0 1 Other Minimum Distance Between Spacecraft sc_dr_min__CL_SP_AUX Minimum distance between spacecraft PT1M km 1e3>m 0 1e7 Positional Maximum Distance Between Spacecraft sc_dr_max__CL_SP_AUX Maximum distance between spacecraft PT1M km 1e3>m 0 1e7 Positional Rotation angle GSE to GSM gse_gsm__CL_SP_AUX Rotation angle GSE to GSM, positive from +z towards +y PT1M degrees 1>degrees -90 90 Positional Dipole tilt dipole_tilt__CL_SP_AUX Dipole tilt in GSM z-x plane, positive from +z towards +x PT1M degrees 1>degrees -90 90 Other Tetrahedron size L sc_geom_size__CL_SP_AUX Tetrahedron size PT1M km 1e3>m 0 1e7 Other Tetrahedron Elongation sc_geom_elong__CL_SP_AUX Tetrahedron elongation PT1M 0 1 Other Tetrahedron Planarity sc_geom_planarity__CL_SP_AUX Tetrahedron planarity PT1M 0 1 Other Direction of elongation sc_geom_E_dir_gse__CL_SP_AUX direction of elongation, direction cosines PT1M 3 -1 1 Other Normal of Planarity sc_geom_P_nor_gse__CL_SP_AUX normal of planarity, direction cosines PT1M 3 -1 1 Other