PDS_VERSION_ID          = PDS3
RECORD_TYPE             = STREAM

OBJECT                  = TEXT
   INTERCHANGE_FORMAT   = ASCII
   PUBLICATION_DATE     = 2009-06-29
   NOTE                 = "LRO I-Kernel Information"
END_OBJECT              = TEXT

END


General Information About SPICE I-Kernels
=========================================

   In the SPICE system, I-kernels contain field-of-view specifications,
   internal timing parameters, detector geometry specifications and
   other geometric parameters for the instrument. These parameters
   along with knowledge of the spacecraft pointing (C kernel) and
   instrument mounting alignment (Frames Kernel) allow the user to use
   SPICE APIs to calculate the view directions of the individual
   instrument pixels or detectors.

   The data contained in I-kernel files can be accessed and manipulated
   in conjunction with other data 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.

   Refer to the ``kernel.req'' document provided with the Toolkit to get
   more information on how to access I-kernel data.


LRO I-kernels Provided in This Data Set
=======================================

   LRO does not levy any requirements on the individuals Science Operation
   Centers (SOCs) or instrument teams to create a corresponding Instrument
   kernel, which would provide the instrument field-of-view(s) size, shape
   and orientation.  However, if the instrument teams or science centers
   create these files and forward them to the LRO Mission Operations
   Center (MOC), the LRO MOC will include them as part of the LRO PDS
   archive.

   File Name Convention
   --------------------
   The LRO Instrument IK Frames Kernel files included in the data set shall
   be named according to the following naming scheme:

   <File Designator>_<Version>.<File Extension>

   where

   File Designator = [8-11 characters] token identifying the file; is
                     "lro_crater" for CRaTER instrument
                     "lro_dlre" for DIVINER instrument
                     "lro_lamp" for LAMP instrument
                     "lro_lola" for LOLA instrument
                     "lro_lend" for LEND instrument
                     "lro_lroc" for LROC instrument

   Version         = [3 characters] file version, vNN;
                     where
                     NN => a two-digit version number; the initial version
                     is "00", next is "01" ... up to "99".

   File Extension  = [2 characters] Standard file extension for a text IK
                     file "ti".

   The following are examples of LRO instrument IK file names:
     - CRaTER IK File :  lro_crater_v01.ti
     - DLRE IK File   :  lro_dlre_v01.ti
     - LAMP IK File   :  lro_lamp_v01.ti
     - LOLA IK File   :  lro_lola_v01.ti
     - LEND IK File   :  lro_lend_v01.ti
     - LROC IK File   :  lro_lroc_v01.ti
     - MINI-RF IK File:  lro_minirf_v01.ti


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

   The most detailed description of the data in an IK file is provided
   in metadata included inside the description area of the file. This
   information can be viewed using any text editor program.


Contact Information
===================

   Regarding Lunar Reconnaissance Orbiter project specific information
   provided in this data set contact:

      Rick Saylor
      (301)-614-1354
      Richard.S.Saylor@nasa.gov

   address:

      NASA Goddard Space Flight Center (GSFC)
      Mail Stop 451.0
      Building 12 Room N233
      Greenbelt MD 20771