PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2000-02-07 
   NOTE                 = "E-Kernel Information"
END_OBJECT              = TEXT
                                                                     
END 

General information about SPICE E-kernels
=========================================

   The purpose of the Events (E) -kernel is to store different kinds
   of the spacecraft and science instrument events related information
   such as spacecraft and instrument commands, status parameters,
   records of spacecraft activities, ground events, and so on, and to
   systemize and provide access to this data in relational data base
   -like fashion.

   The means of an access to the EK data are provided via collection
   of subroutines that are part of the SPICELIB library, the major
   component of the NAIF Toolkit, or using SPICE system utility program
   INSPEKT to browse E-kernel contents. The subroutines can be integrated
   into user application programs while the INSPEKT program can be
   used to view E-kernel information interactively. The SPICE system
   toolkit for a number of computer platforms or information regarding
   how it can be obtained is located in the SOFTWARE subdirectory of
   the main directory of this dataset.
   
   To use E-kernels with INSPEKT program, a Leapseconds (LSK) is
   required.
   
   Refer to the EK.REQ and INSPEKT.UG documents provided with the
   toolkit or available from the NAIF Node of PDS if SPICE toolkit is
   not included with this data set to get more information on how to
   access E-kernel data.


MGS E-kernels provided on this volume
=====================================

   The following MGS E-kernels are provided on this volume:
   
   -- MGS Spacecraft Sequence EK files:
 
           MGS_CRUS_*_U*.BES    MGS Cruise Sequence EK files created by
                                converting integrated and updated with
                                real-time commands Predicted Events Files
                                (PEFs) to SPICE EK format using PEF2EK
                                SPICE Utility Program;
 
   -- MGS Spacecraft Dictionary EK files:
 
           MGS_CMDICT_V10.BDB   MGS Spacecraft Command Dictionary EK file
                                created from command definitions contained
                                in Spacecraft Command Dictionary database;
 
           MGS_ACDICT_V10.BDB   MGS Spacecraft Activity Dictionary EK file
                                created from spacecraft activity
                                definitions contained in SEQGEN Spacecraft
                                Activity Type file;
 
           MGS_GEDICT_V10.BDB   MGS Spacecraft Ground Event Dictionary EK
                                file created from ground event definitions
                                contained in SEQGEN Spacecraft Model file;
 
   -- MGS Experimenter's Notebook EK files:
   
           MGS_MOLA_PREMAP.TEN  E-kernel file containing all notes regarding 
                                MOLA operations during pre-mapping phases 
                                of the mission submitted by various members 
                                of the MOLA science and operations teams 
                                to the MGSENB System operated by NAIF;
           
           MGS_RS_PREMAP.TEN    E-kernel file containing all notes regarding 
                                Radio Science operations during pre-mapping 
                                phases of the mission submitted by various 
                                members of the Radio Science teams to the 
                                MGSENB System operated by NAIF;
           
           MGS_SCOPS_PREMAP.TEN E-kernel file containing all notes regarding 
                                spacecraft operations during pre-mapping 
                                phases of the mission submitted by SCOPS 
                                team, LMA to the MGSENB System operated by 
                                NAIF;
           
           MGS_TES_PREMAP.TEN   E-kernel file containing all notes regarding 
                                TES operations during pre-mapping phases 
                                of the mission submitted by various members 
                                of the TES science and operations teams 
                                to the MGSENB System operated by NAIF;


Kernel File Details
===================

   The most detailed description of the data in a text EK file is 
   provided in metadata included inside the description area of 
   the file. This information can be viewed using any text editor
   program.
   
   The most detailed description of the data in a binary EK 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 MGS project specific information provided in this
   data set and for general information about SPICE system:
   
      Charles H. Acton, Jr, 
      (818)-354-3869, 
      Chuck.Acton@jpl.nasa.gov, 
      
   or 
   
      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