Details

    • Type: Sub-task
    • Status: In Progress (View Workflow)
    • Priority: P1
    • Resolution: Unresolved
    • Affects Version/s: R2016a
    • Fix Version/s: R2018A
    • Component/s: Miscellaneous
    • Labels:
      None

      Description

      Create a tool that will run at least daily to update the SVN data file server with updates to data files from FDF, etc

        Gliffy Diagrams

          Attachments

            Activity

            Hide
            tgrubb Thomas Grubb added a comment - - edited

            6 files
            EOP_FILE = PLANETARY_COEFF_PATH/eopc04_08.62-now
            CSSI_FLUX_FILE = ATMOSPHERE_PATH/CSSI_2004To2026.txt
            SCHATTEN_FILE = ATMOSPHERE_PATH/SchattenPredict.txt
            PLANETARY_PCK_FILE = PLANETARY_COEFF_PATH/pck00010.tpc
            LEAP_SECS_FILE = TIME_PATH/tai-utc.dat
            LSK_FILE = TIME_PATH/naif0011.tls

            Users Guide gives details:
            http://gmat.sourceforge.net/docs/R2015a/help-letter.pdf

            Leap Second and EOP files
            GMAT reads several files that are used for high fidelity modelling of time and coordinate systems:
            the leap second files and the Earth orientation parameters (EOP) provided by the IERS. The EOP
            file is updated daily by the IERS. To update your local file with the latest data, simply replace the
            file eopc04_08.62-now in the data/planetary_coeff directory. Updated versions of this
            file are available from the IERS (http://data.iers.org/products/213/14444/orig/eopc04_08.62-now)
            For use with GMAT's event location subsystem, you will also need to update the SPICE EOP
            files, distributed by NAIF: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/
            pck. The high-fidelity earth_000101_yymmdd_yymmdd.bpc file is updated twice per week. For
            more information on data configuration for event location, see the ContactLocator and EclipseLocator
            reference pages.
            There are two leap second files provided with GMAT in the data/time directory. The
            naif0011.tls file is used by the JPL SPICE libraries when computing ephemerides. When a new
            leap second is added, you can replace this file with the new file from NAIF. GMAT reads the taiutc.dat
            file for all time computations requiring leap seconds that are not performed by the SPICE
            utilities. When a new leap second is added, you can replace this file with the new file from the US Naval Observatory (ftp://maia.usno.navy.mil/ser7/tai-utc.dat). In addtion, you can modify the file if a new leap second is added by simply duplicating the last row and updating it with the correct information for the new leap second. For example, if a new leapsecond were added on 01 Jul 2013, you would add the following line to the
            bottom of tai-utc.dat:
            2013 JUL 1 =JD 2456474.5 TAI-UTC= 35.0 S + (MJD - 41317.) X 0.0

            Space Weather
            You can provide a Center for Space Standards and Innovation (CSSI) file for historical space weather
            data. GMAT does not use the predicted portion of the file but does use the historical portion of the
            data. The CCSI file format is described in detail at the Celestrak website and the files are available
            for download at that site and here.
            ftp://ftp.agi.com/pub/DynamicEarthData/SpaceWeather-All-v1.2.txt

            Show
            tgrubb Thomas Grubb added a comment - - edited 6 files EOP_FILE = PLANETARY_COEFF_PATH/eopc04_08.62-now CSSI_FLUX_FILE = ATMOSPHERE_PATH/CSSI_2004To2026.txt SCHATTEN_FILE = ATMOSPHERE_PATH/SchattenPredict.txt PLANETARY_PCK_FILE = PLANETARY_COEFF_PATH/pck00010.tpc LEAP_SECS_FILE = TIME_PATH/tai-utc.dat LSK_FILE = TIME_PATH/naif0011.tls Users Guide gives details: http://gmat.sourceforge.net/docs/R2015a/help-letter.pdf Leap Second and EOP files GMAT reads several files that are used for high fidelity modelling of time and coordinate systems: the leap second files and the Earth orientation parameters (EOP) provided by the IERS. The EOP file is updated daily by the IERS. To update your local file with the latest data, simply replace the file eopc04_08.62-now in the data/planetary_coeff directory. Updated versions of this file are available from the IERS ( http://data.iers.org/products/213/14444/orig/eopc04_08.62-now ) For use with GMAT's event location subsystem, you will also need to update the SPICE EOP files, distributed by NAIF: http://naif.jpl.nasa.gov/pub/naif/generic_kernels/ pck. The high-fidelity earth_000101_yymmdd_yymmdd.bpc file is updated twice per week. For more information on data configuration for event location, see the ContactLocator and EclipseLocator reference pages. There are two leap second files provided with GMAT in the data/time directory. The naif0011.tls file is used by the JPL SPICE libraries when computing ephemerides. When a new leap second is added, you can replace this file with the new file from NAIF. GMAT reads the taiutc.dat file for all time computations requiring leap seconds that are not performed by the SPICE utilities. When a new leap second is added, you can replace this file with the new file from the US Naval Observatory ( ftp://maia.usno.navy.mil/ser7/tai-utc.dat ). In addtion, you can modify the file if a new leap second is added by simply duplicating the last row and updating it with the correct information for the new leap second. For example, if a new leapsecond were added on 01 Jul 2013, you would add the following line to the bottom of tai-utc.dat: 2013 JUL 1 =JD 2456474.5 TAI-UTC= 35.0 S + (MJD - 41317.) X 0.0 Space Weather You can provide a Center for Space Standards and Innovation (CSSI) file for historical space weather data. GMAT does not use the predicted portion of the file but does use the historical portion of the data. The CCSI file format is described in detail at the Celestrak website and the files are available for download at that site and here. ftp://ftp.agi.com/pub/DynamicEarthData/SpaceWeather-All-v1.2.txt

              People

              • Assignee:
                tgrubb Thomas Grubb
                Reporter:
                tgrubb Thomas Grubb
                Participants:
              • Votes:
                0 Vote for this issue
                Watchers:
                1 Start watching this issue

                Dates

                • Created:
                  Updated:

                  Time Tracking

                  Estimated:
                  Original Estimate - 4 days
                  4d
                  Remaining:
                  Remaining Estimate - 4 days
                  4d
                  Logged:
                  Time Spent - Not Specified
                  Not Specified