PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2021-02-25 NOTE = "MRO 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. The SPK files can be accessed and manipulated using the SPICE Toolkit APIs, calls to which can be integrated into user application programs. The information regarding how to obtain the SPICE system toolkit for a number of languages and computer platforms is located in the ``/software'' subdirectory of the main directory of this data set. To use SP-kernels, a Leapseconds (LSK) is required. Also, to use SP-Kernels containing positions given relative to the non-inertial and project-defined frames, a Frame Definitions (FK) and Planetary Constants (PCK) files are required. Refer to the ``spk.req'' document provided with the toolkit to get more information on how to access SP-kernel data. MRO SP-kernels Provided in This Data Set ======================================== The following MRO SP-kernels are provided in this data set (only name portion of the file name is shown; the extension of all file names is ``.bsp''): MRO Spacecraft Trajectory SPK files: mro_PHASE SPK files covering the whole or a portion of a particular phase of the mission, created by merging regular reconstructed OD solution SPK files from MRO NAV. The PHASE token in the file name corresponds to the following coverage boundaries: PHASE Begin date End date ----- ----------- ----------- cru 2005 AUG 12 2006 MAR 10 ab 2006 MAR 10 2006 SEP 12 psp1 2006 SEP 12 2007 JAN 01 psp2 2007 JAN 01 2007 APR 01 psp3 2007 APR 01 2007 JUL 01 psp4 2007 JUL 01 2007 OCT 01 psp5 2007 OCT 01 2008 JAN 01 psp6 2008 JAN 01 2008 APR 01 psp7 2008 APR 01 2008 JUL 01 psp8 2008 JUL 01 2008 OCT 01 psp9 2008 OCT 01 2009 JAN 01 psp10 2009 JAN 01 2009 APR 01 psp11 2009 APR 01 2009 JUL 01 psp12 2009 JUL 01 2009 OCT 01 psp13 2009 OCT 01 2010 JAN 01 psp14 2010 JAN 01 2010 APR 01 psp15 2010 APR 01 2010 JUL 01 psp16 2010 JUL 01 2010 OCT 01 psp17 2010 OCT 01 2011 JAN 01 psp18 2011 JAN 01 2011 APR 01 psp19 2011 APR 01 2011 JUL 01 psp20 2011 JUL 01 2011 OCT 01 psp21 2011 OCT 01 2012 JAN 01 psp22 2012 JAN 01 2012 APR 01 psp23 2012 APR 01 2012 JUL 01 psp24 2012 JUL 01 2012 OCT 01 psp25 2012 OCT 01 2013 JAN 01 psp26 2013 JAN 01 2013 APR 01 psp27 2013 APR 01 2013 JUL 01 psp28 2013 JUL 01 2013 OCT 01 psp29 2013 OCT 01 2014 JAN 01 psp30 2014 JAN 01 2014 APR 01 psp31 2014 APR 01 2014 JUL 01 psp32 2014 JUL 01 2014 OCT 01 psp33 2014 OCT 01 2015 JAN 01 psp34 2015 JAN 01 2015 APR 01 psp35 2015 APR 01 2015 JUL 01 psp36 2015 JUL 01 2015 OCT 01 psp37 2015 OCT 01 2016 JAN 01 psp38 2016 JAN 01 2016 APR 01 psp39 2016 APR 01 2016 JUL 01 psp40 2016 JUL 01 2016 OCT 01 psp41 2016 OCT 01 2017 JAN 01 psp42 2017 JAN 01 2017 APR 01 psp43 2017 APR 01 2017 JUL 01 psp44 2017 JUL 01 2017 OCT 01 psp45 2017 OCT 01 2018 JAN 01 psp46 2018 JAN 01 2018 APR 01 psp47 2018 APR 01 2018 JUL 01 psp48 2018 JUL 01 2018 OCT 01 psp49 2018 OCT 01 2019 JAN 01 psp50 2019 JAN 01 2019 APR 01 psp51 2019 APR 01 2019 JUL 01 psp52 2019 JUL 01 2019 OCT 01 psp53 2019 OCT 01 2020 JAN 01 psp54 2020 JAN 01 2020 APR 01 psp55 2020 APR 01 2020 JUL 01 psp56 2020 JUL 01 2020 OCT 01 psp57 2020 OCT 01 2021 JAN 01 psp58 2021 JAN 01 2021 APR 01 psp59 2021 APR 01 2021 JUL 01 psp60 2021 JUL 01 2021 OCT 01 psp61 2021 OCT 01 2022 JAN 01 psp62 2022 JAN 01 2022 APR 01 psp63 2022 APR 01 2022 JUL 01 psp64 2022 JUL 01 2022 OCT 01 psp65 2022 OCT 01 2023 JAN 01 psp66 2023 JAN 01 2023 APR 01 psp67 2023 APR 01 2023 JUL 01 psp68 2023 JUL 01 2023 OCT 01 psp69 2023 OCT 01 2024 JAN 01 The "psp*" files up to "psp9" cover parts of the Primary Science Phase of the mission; the "psp*" starting with "psp10" cover parts of the Extended Science Phase of the mission. mro_PHASE_ssd_GM SPK files covering the whole or a portion of a post-aerobraking phase of the mission (PSP, Relay), created by merging the reconstructed orbit solution SPK files produced by the Solar System Dynamics (SSD) group, JPL. The PHASE token in the file name corresponds to the coverage specified above; the GM token identifies the gravity model used in the orbit solution (e.g. ``mro95a''). MRO Spacecraft Structures Fixed Offset SPK files: mro_struct_vVV SPK files providing relative locations of various MRO structures and science and engineering instruments. The file with the latest version number VV supersedes all previous versions. Solar System Bodies Ephemeris data SPK file: deVVV SPK file containing JPL's Planetary Ephemerides DEVVV, were VVV is the version of the Ephemerides. marVVV SPK file containing JPL's Mars Satellite Ephemerides (MAR) MARVVV were VVV is the version of the Ephemerides. While the MRO NAV SPK files provide the most complete coverage, the most accurate trajectory solution is available in the latest SPK files produced by SSD. Therefore it is recommended that these two sets of files are loaded together with the latest SSD SPK files loaded last to take priority. 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 into the NAIF Toolkit. Contact Information =================== Regarding MRO project specific information provided in this data set and for general information about SPICE system: Boris Semenov (818)-354-8136 Boris.Semenov@jpl.nasa.gov address: Navigation and Ancillary Information Facility (NAIF) Jet Propulsion Laboratory MS 301-125L 4800 Oak Grove Drive Pasadena CA 91109 USA