PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2007-06-12 
   NOTE                 = "Clementine 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
   systematize 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
   the SPICE Toolkit APIs, calls to which can be integrated into user
   application programs, and SPICE system program INSPEKT, a utility
   program for browsing E-kernel contents. 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 E-kernels with INSPEKT program, a Leapseconds (LSK) is
   required.
   
   Refer to the ``ek.req'' and ``inspekt.ug'' documents provided with
   the toolkit to get more information on how to access E-kernel data.


Clementine E-kernels Provided in This Data Set
==============================================

   The following Clementine E-kernels are provided in this data set:

      clem_moon_940127_940312.bdb
      clem_moon_940312_940330.bdb
      clem_moon_940330_940415.bdb
      clem_moon_940415_940507.bdb
      clem_sky_940201_940507.bdb

   These files contain parts of the Clementine image catalog in EK
   format, created by NAIF in 1994, after the end of the mission, to
   make the Clementine image attributes and derived geometry
   information available to the NAIF staff in the EK database format
   accessible using SPICE APIs and INSPEKT application. The four
   ``moon'' files contain records for subsets of the Moon images taken
   during the periods identified by the dates in the file names. The
   ``sky'' file contains records for the Clementine images of the sky.

   It is suggested that only the ``basic'' image attributes provided in
   this catalog -- image file name, time, camera ID, exposure, gain,
   compression, etc. -- but not the ``derived'' geometry values --
   longitudes and latitudes, illumination angles, etc. -- are used in
   future applications. While the ``basic'' attributes are identical to
   those from the PDS image labels, the ``derived'' geometric
   parameters are different and possibly inaccurate because they were
   computed using older kernels.

   Appendix 1 of this document provides a small example illustrating
   how the INSPEKT program can be used to query the Clementine image
   catalog EK files to find a set of images within a time range and to
   obtain the attributes of a particular image.


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

   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 Clementine 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 


Appendix 1: Example of Querying Clementine Image Catalog EKs using INSPEKT
==========================================================================

   This appendix contains a screen-shot of an interactive INSPEKT
   session illustrating how the INSPEKT program can be used query the
   Clementine image catalog EK files to find a set of images within a
   time range and to obtain the attributes of a particular image.

      % inspekt

      ...

      Inspekt> load leapseconds ../lsk/naif0008.tls;
      Inspekt> load ek clem_moon_940127_940312.bdb;
      Inspekt> load ek clem_moon_940312_940330.bdb;
      Inspekt> load ek clem_moon_940330_940415.bdb;
      Inspekt> load ek clem_moon_940415_940507.bdb;
      Inspekt> load ek clem_sky_940201_940507.bdb;
      Inspekt> set format tabular;
      Inspekt> show summary;

      Column              :  Description

      CLEM_CAT.ALTITUDE   :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.CAMERA     :  CHARACTER*(6)      (Indexed)
      CLEM_CAT.COMP       :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.DEC        :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.DNMAX      :  INTEGER            (Indexed)
      CLEM_CAT.DNMEAN     :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.DNMIN      :  INTEGER            (Indexed)
      CLEM_CAT.DNSD       :  DOUBLE PRECISION
      CLEM_CAT.EMISSION   :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.EXPOSURE   :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.FILE       :  CHARACTER*(12)     (Indexed)
      CLEM_CAT.FILTER     :  CHARACTER*(1)      (Indexed)
      CLEM_CAT.FRAME      :  INTEGER            (Indexed)
      CLEM_CAT.GAIN       :  CHARACTER*(3)
      CLEM_CAT.INCIDENCE  :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.INCIDENCE_2:  DOUBLE PRECISION
      CLEM_CAT.LAT        :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.LON        :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.OFFSET     :  CHARACTER*(3)
      CLEM_CAT.OLD_FILE   :  CHARACTER*(12)     (Indexed)
      CLEM_CAT.PASS       :  CHARACTER*(8)      (Indexed)
      CLEM_CAT.PHASE      :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.PHASE_2    :  DOUBLE PRECISION
      CLEM_CAT.RA         :  DOUBLE PRECISION   (Indexed)
      CLEM_CAT.REV        :  INTEGER            (Indexed)
      CLEM_CAT.SC_LAT     :  DOUBLE PRECISION
      CLEM_CAT.SC_LON     :  DOUBLE PRECISION
      CLEM_CAT.SOURCE_2   :  CHARACTER*(5)
      CLEM_CAT.TARGET     :  CHARACTER*(5)      (Indexed)
      CLEM_CAT.TIME       :  TIME               (Indexed)

      Inspekt> select TIME, FILE from CLEM_CAT
               where TIME between '1994-MAR-31 12:00' 
               and '1994-MAR-31 12:26';


      Inspekt Report

      TIME                  FILE
      ==============================================
      1994 MAR 31 12:25:11  LHD0028A.189
      1994 MAR 31 12:25:11  LLA0029A.189
      1994 MAR 31 12:25:11  LNF0030A.189
      1994 MAR 31 12:25:12  LUE0031A.189
      1994 MAR 31 12:25:12  LUE0032A.189
      1994 MAR 31 12:25:12  LNA0033A.189
      1994 MAR 31 12:25:13  LUD0034A.189
      1994 MAR 31 12:25:13  LUD0035A.189
      1994 MAR 31 12:25:26  LHD0036A.189
      1994 MAR 31 12:25:26  LNE0037A.189
      1994 MAR 31 12:25:26  LUC0038A.189
      1994 MAR 31 12:25:26  LUC0039A.189
      1994 MAR 31 12:25:27  LNC0040A.189
      1994 MAR 31 12:25:27  LUB0041A.189
      1994 MAR 31 12:25:27  LUB0042A.189
      1994 MAR 31 12:25:40  LHD0043A.189
      1994 MAR 31 12:25:40  LLA0044A.189
      1994 MAR 31 12:25:40  LND0045A.189
      1994 MAR 31 12:25:40  LUA0046A.189
      1994 MAR 31 12:25:40  LUA0047A.189
      1994 MAR 31 12:25:41  LNB0048A.189
      1994 MAR 31 12:25:54  LHD0049A.189
      1994 MAR 31 12:19:44  LLA0001U.189
      1994 MAR 31 12:19:45  LLA0002U.189
      1994 MAR 31 12:19:46  LLA0003U.189
      1994 MAR 31 12:19:47  LLA0004U.189
      1994 MAR 31 12:19:48  LLA0005U.189
      1994 MAR 31 12:19:49  LLA0006U.189
      1994 MAR 31 12:19:50  LLA0007U.189
      1994 MAR 31 12:19:51  LLA0008U.189
      1994 MAR 31 12:19:52  LLA0009U.189
      1994 MAR 31 12:19:53  LNF0010U.189
      1994 MAR 31 12:19:55  LNE0012U.189
      1994 MAR 31 12:19:56  LNC0013U.189
      1994 MAR 31 12:19:57  LND0014U.189
      1994 MAR 31 12:19:58  LNB0015U.189
      1994 MAR 31 12:19:59  LNF0016U.189
      1994 MAR 31 12:20:00  LNA0017U.189
      1994 MAR 31 12:20:01  LNE0018U.189
      1994 MAR 31 12:20:03  LND0020U.189
      1994 MAR 31 12:20:04  LNB0021U.189
      1994 MAR 31 12:20:05  LNF0022U.189
      1994 MAR 31 12:20:07  LNE0024U.189
      1994 MAR 31 12:20:08  LNC0025U.189
      1994 MAR 31 12:20:09  LND0026U.189


      Inspekt> select FILE, CAMERA, TIME, EXPOSURE, FILTER
               from CLEM_CAT where FILE eq 'LND0026U.189';


      Inspekt Report

      FILE    : LND0026U.189
      CAMERA  : NIR
      TIME    : 1994 MAR 31 12:20:09
      EXPOSURE: 33.0000
      FILTER  : D



      Inspekt> exit;

