2.4.0 spase://CNES/NumericalData/CDPP-Archive/THEMIS-E/DefinitiveEphemeris/THEMIS_AUX_THE_L1_EPHEM THEMIS-E Definitive Ephemeris and Spin Attitude Corrections (CDF) https://doi.org/10.24400/802406/5q9d-srnq 2022-01-21T08:24:18Z This dataset contains THEMIS-E position, velocity, attitude and sun pulse data. The data are definitive with added science attitude determination using perigee data post-processing. spase://CNES/Person/CDPP-Archive/Vassilis.Angelopoulos PrincipalInvestigator spase://CNES/Person/CDPP-Archive/CDPP.general.contact GeneralContact spase://CNES/Repository/CDPP-Archive/REGARDS-CDPP Online REGARDS https://regards.cnes.fr/user/cdpp/modules/1777?sp=DatasetName;q=DatasetName:THEMIS_AUX_THE_L1_EPHEM Access via CNES Data Archive for CDPP CDF Uncalibrated spase://CNES/Instrument/CDPP-Archive/THEMIS-E/Ephemeris Ephemeris 2007-02-28T00:00:00Z 2013-02-20T00:00:00Z Heliosphere.NearEarth Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosheath THEMIS-E position vector in GEI coordinates THEMIS-E position vector (km) in GEI coordinates km Cartesian GEI Vector Positional THEMIS-E velocity vector in GEI coordinates THEMIS-E velocity vector (km/s) in GEI coordinates km/s 1e3>m/s Cartesian GEI Vector Velocity THEMIS-E Maneuver Flag THEMIS-E maneuver status code (XYYZZZ). Values indicate if/what maneuver is being performed. Spacecraft data will be unreliable during maneuvers. * Unpowered flight (Coast): - X=0, Y=00, Z=000 * Sequence Code X: - 0= No Segmentation - 1= Segmented Maneuver * Type Code YY: - 0= No Maneuver - 1= Axial-thrust Maneuver - 2= Side-thrust Maneuver - 3= Beta-thrust Maneuver - 4= Attitude Precession - 5= Spin-Rate Change * Sequence Number ZZZ: - 001-999= Maneuver Sequence Number Other THEMIS-E RoI Region of interest. Different bits of this parameter give a general indication of the region that the spacecraft is in. The first 18 bits are significant. An active bit indicates the spacecraft is in a given region. Multiple bits may be set simultaneously. The value of the bit is in parentheses in the following table. +---------------------------------------------------+ | Bit 1(1) | Earth Shadow | | Bit 2(2) | Lunar Shadow | | Bit 3(4) | Atmospheric absorbtion zone | | Bit 4(8) | South Atlantic Anomaly | | Bit 5(16) | Northern Auroral Zone | | Bit 6(32) | Southern Auroral Zone | | Bit 7(64) | Perigee Passage | | Bit 8(128) | Inner & Outer Radiation Belts | | Bit 9(256) | Deep Plasma Sphere | | Bit 10(512) | Foreshock Solar Wind | | Bit 11(1024) | Solar Wind Beam | | Bit 12(2048) | High Magnetic Field | | Bit 13(4096) | Average Plasma Sheet | | Bit 14(8192) | Bowshock Crossing | | Bit 15(16384) | Magnetopause Crossing | | Bit 16(32768) | Ground Based Observatories | | Bit 17(65536) | 2-Day Conjunctions | | Bit 18(131072)| 4-Day Conjunctions | +---------------------------------------------------+ Other THEMIS-E spin axis right ascension THEMIS-E spin axis right ascension in GEI coordinates. deg Spherical GEI DirectionAngle.AzimuthAngle Positional THEMIS-E spin axis declination in GEI coordinates THEMIS-E spin axis declination in GEI coordinates deg Spherical GEI DirectionAngle.ElevationAngle Positional THEMIS-E spin axis azimuth, Euler alpha, in Probe Geometric (SPG) coordinates THEMIS-E spin axis azimuth, Euler alpha, in Probe Geometric (SPG) coordinates deg Spherical SC DirectionAngle.AzimuthAngle Positional THEMIS-E spin axis colatitude, Euler beta, in Probe Geometric (SPG) coordinates THEMIS-E spin axis colatitude, Euler beta, in Probe Geometric (SPG) coordinates deg Spherical SC DirectionAngle.PolarAngle Positional THEMIS-E spin period, regularized and boxcar averaged THEMIS-E spin period, regularized and boxcar averaged s Temporal THEMIS-E angle rotated since the sun sensor registered the sun pulse, regularized and boxcar averaged. THEMIS-E angle rotated since the sun sensor registered the sun pulse, regularized and boxcar averaged. deg PhaseAngle Positional THEMIS-E Initial Spin Period for segment THEMIS-E Initial Spin Period for segment s Temporal THEMIS-E Drift term for spin rate Drift term for spin rate Applies to angular velocity (deg/sec), not spin period. deg/s^2 Other THEMIS-E Spin Correction THEMIS-E Spin phase correction from definitive position and field model calculated at 1 minute intervals deg DirectionAngle Other THEMIS-E Spin axis right ascension Spin axis right ascension correction from definitive position and field model deg Other THEMIS-E Spin axis declination Spin axis declination correction from definitive position and field model deg Other THEMIS-E Maximum absolute phase error Maximum absolute phase error between model and non-outlier sun crossing time Errors due to recognized BAU timing errors do not contribute to this quantity Uncertainty Temporal THEMIS-E Number of spins contained in this segment THEMIS-E Number of spins contained in this segment Other THEMIS-E Pulse Gap Duration, in seconds, of longest gap between sun pulses in this segment. Long gaps (60 sec or more) will generally indicate shadow periods. s Temporal THEMIS-E Position (GSE) Spacecraft position vector (km) in GSE coordinates km 1e3>m Cartesian GSE Vector Positional THEMIS-E Position (GSM) Spacecraft position vector (km) in GSM coordinates km 1e3>m Cartesian GSM Vector Positional THEMIS-E Velocity (GSE) Spacecraft velocity (km/s) in GSE coordinates km/s 1e3>m/s Cartesian GSE Vector Velocity THEMIS-E Velocity (GSM) Spacecraft velocity (km/s) in GSM coordinates km/s 1e3>m/s Cartesian GSM Vector Velocity