2.2.6 spase://CDPP/NumericalData/AMDA/Rosetta/Ephemeris/ros-orb-comet orbit comet/C-G (67p) 2015-10-16T16:25:29Z CSO The body-Centered Solar Orbital frames for the Rosetta primary target comet 67P/Churyumov-Gerasimenko, incidental target comet 45P/Honda-Mrkos-Pajdusakowa (Rosetta passed through its ion tail in July 2006), and secondary targets asteroids 2867/STEINS and 21/LUTETIA are named '67P/C-G_CSO', '45P/H-M-P_CSO', '2867/STEINS_CSO', and '21/LUTETIA_CSO'. These frames are defined as a two-vector style dynamic frames as follows: - The position of the sun relative to the body is the primary vector: the X axis points from the body to the sun. - The inertially referenced velocity of the sun relative to the body is the secondary vector: the Y axis is the component of this velocity vector orthogonal to the X axis. - The Z axis is X cross Y, completing the right-handed reference frame. - All vectors are geometric: no aberration corrections are used. CSEQ The body-Centered Solar EQuatorial frames for the Rosetta primary target comet 67P/Churyumov-Gerasimenko and secondary target asteroid 21/LUTETIA are named '67P/C-G_CSEQ' and '21/LUTETIA_CSEQ'. These frames are defined as a two-vector style dynamic frames as follows: - +X axis is the position of the Sun relative to the body; it's the primary vector and points from the body to the Sun; - +Z axis is the component of the Sun's north pole of date orthogonal to the +X axis; - +Y axis completes the right-handed reference frame; - the origin of this frame is the body's center of mass. All the vectors are geometric: no aberration corrections are used. C_G-CK C_G comet fixed frame (CK frame) A body-fixed frame is defined using standard body-fixed, CK-based frame formation rules: - +Z axis is toward the North pole; - +X axis is toward the prime meridian; - +Y axis completes the right hand frame; - the origin of this frame is at the center of the body. The orientation of this frame is computed by evaluating corresponding C_G comet attitudes kernels. spase://SMWG/Person/Elena.Budnik MetadataContact spase://SMWG/Repository/CDPP/AMDA Online Open http://amda.cdpp.eu NetCDF PSA spase://CDPP/Instrument/AMDA/Rosetta/Ephemeris Ephemeris 2014-01-01T00:00:00Z 2015-11-17T23:59:00Z PT60S xyz_cso ros_xyz_cso pos.bodyrc;instr.obsty km TimeSeries 3 x 0 ros_xyz_cso(0) y 1 ros_xyz_cso(1) z 2 ros_xyz_cso(2) Positional xyz_cseq ros_xyz_cseq pos.bodyrc;instr.obsty km TimeSeries 3 x 0 ros_xyz_cseq(0) y 1 ros_xyz_cseq(1) z 2 ros_xyz_cseq(2) Positional polar_C-G-CK ros_xyz_fixed TimeSeries 3 r 0 ros_xyz_fixed(0) lon 1 ros_xyz_fixed(1) lat 2 ros_xyz_fixed(2) Positional distance ros-C-G ros_r_cso km TimeSeries