PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2013-08-13 NOTE = "SP-Kernel Information" END_OBJECT = TEXT END General information about SPICE SP-kernels ========================================== The purpose of the SP-kernel -- which stands for S(pacecraft) and P(lanet) Kernel -- is to allow ephemerides for any collection of solar system bodies, spacecraft or any other objects in 3D space to be combined under a common file format, and accessed by a common set of subroutines. SPK can be accessed by subroutines that are part of the SPICE library, the major component of the SPICE Toolkit. These subroutines can be integrated into user application programs. Information regarding how the Toolkit can be obtained is located in the SOFTWARE subdirectory of the main directory of this dataset. To use SP-kernels, a Leapseconds (LSK) is also required. To use SP-Kernels containing positions given relative to the non-inertial and project-defined frames, Frame Definitions Kernel (FK), Planetary Constants Kernel (PcK), and C-Kernel (CK) files are also required. Refer to the SPK.REQ document provided with the Toolkit to get more information on how to access SP-kernel data. MER-1 SPK files provided in this directory ====================================== This directory contains the SPICE SPK files for the MER-1 rover. All files are in IEEE big endian binary format. The following files are present in this directory. (Only file names are shown; the file name extensions of the binary SPK files are always ".bsp"): MER-1 landing site, sites, and rover surface position SPK files: mer1_ls_040128_iau2000_v1 Landing site location SPK file based on the final post-landing Rover Position File (RPF) solution produced by MER Navigation Team. mer1_surf_rover_BBBB_EEEE_vV mer1_surf_rover_MMMM_vV Rover and site position SPK files, for MMMM portion of the mission: ``prim'' -- primary mission, ``ext1'' -- first part of the extended mission, and so on, or for the Sol range BBBB to EEEE. These files were generated from position data extracted from channelized telemetry and non-channelized telemetry products. The files for a Sol range supersede the files for a mission portion. The file with the latest version (vV) supersedes all files with earlier versions. mer1_surf_roverrl_BBBB_EEEE_vV mer1_surf_roverrl_MMMM_vV Rover and site position SPK files, for MMMM portion of the mission: ``prim'' -- primary mission, ``ext1'' -- first part of the extended mission, and so on, or for the Sol range BBBB to EEEE. These files were generated from position data extracted from channelized telemetry and non-channelized telemetry products and combined with the latest available at the time bundle-adjustment position input from Dr. Ron Li/OSU. The files for a Sol range supersede the files for a mission portion. The file with the latest version (vV) supersedes all files with earlier versions. mer1_rvr_rpf_YYMMDD Rover surface position SPK files based on the Rover Position File (RPF) solutions produced by MERNAV. YYMMDD in the file name (YYMMDD) is the time when RPF file was released. mer1_still_at_ls_v1 Special rover surface position SPK file providing rover position as zero offset with respect to the landing site at all times. This file was used during operations by CHRONOS and other applications that were not sensitive to the local rover movements. MER-1 structures SPK file: mer1_surf_iddg_MMMM_vV SPK files containing location of the Microscopic Imager (MI) touch point relative to the rover frame origin, for MMMM portion of the mission: ``prim'' -- primary mission, ``ext1'' -- first part of the extended mission, and so on. These were files generated from gravity-compensated position data extracted only from image telemetry products. The file with the latest version (vV) supersedes all files with earlier versions. mer1_struct_v10 SPK file containing fixed locations of rover structures and science instruments relative to the rover frame origin and each other. MER-1 Cruise SPK files: mer1_cruise Final reconstructed cruise trajectory SPK file produced by MERNAV. MER-1 EDL SPK files: mer1_edl_rcb_v1 Reconstructed EDL trajectory SPK file containing EDL trajectory solution by Robert C. Blanchard, (LARC-D205)[GWU], 2008. Solar System Bodies Ephemeris data SPK file: de410 SPK file containing JPL's Planetary Ephemerides DE410. Satellite Ephemeris data SPK file: mar033_2000_2025 SPK file containing ephemerides for the Martian satellites Phobos and Deimos, and for the Sun, Earth, Moon and Mars. Kernel File Details =================== The most detailed description of the data in each SPK file is provided in metadata included inside the comment area of the file. This information can be viewed using utility programs COMMNT and SPACIT included in the SPICE Toolkit. Contact Information =================== Regarding MER project specific information provided in this data set and for general information about SPICE system: Charles H. Acton, Jr, (818)-354-3869, Charles.Acton@jpl.nasa.gov, or Boris Semenov (818)-354-8136 Boris.Semenov@jpl.nasa.gov or Lee Elson (818)-354-4223 Lee.Elson@jpl.nasa.gov address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA