KPL/IK

Concentrator Instrument Kernel
===========================================================================

   This instrument kernel (I-kernel) contains the mounting alignment, FOV
   geometry information and internal parameter values for the Concentrator 
   Instrument.
    
 
Version and Date
--------------------------------------------------------
   
   Version 1.0 -- July 6, 2000 -- Boris Semenov, NAIF/JPL
     
      Initial Release.
  
 
References
--------------------------------------------------------
 
   1. ``Kernel Pool Required Reading''

   2. Genesis Frame Definitions Kernel, latest version.

   3. Genesis Misson Plan (Doc.# GN-61000-202), October 1, 1999
   
   4. SC/SRC ICD (Doc.# GN-52200-210), January 31, 2000
         
 
Implementation Notes
--------------------------------------------------------
 
   This file is used by the SPICE system as follows: programs that make
   use of this I-kernel must `load' the kernel, normally during program
   initialization. Loading the kernel associates data items with their
   names in a data structure called the `kernel pool'. The SPICELIB
   routine LDPOOL loads a kernel file into the pool as shown below.

      CALL LDPOOL ( I_kernel_name )

   In order for a program or subroutine to extract data from the pool,
   the SPICELIB routines GDPOOL and GIPOOL are used. See [4] for more 
   details.
   
   This file was created and can be updated with a text editor or word
   processor.

 
Naming Conventions
--------------------------------------------------------
 
   All names referencing values in this I-kernel start with the
   characters `INS' followed by the NAIF GNS spacecraft ID number
   (-47) followed by the NAIF three digit Concentrator instrument
   reference number (300).

   The remainder of the name is an underscore character followed by the
   unique name of the data item. For example, the Concentrator FOV shape 
   is specified by 

      INS-47300_FOV_SHAPE

   The upper bound on the length of the name of any data item is 32
   characters.

   If the same item is included in more then one file, or if the same
   item appears more than once within a single file, the latest value
   supersedes any earlier values.

   
Concentrator description
--------------------------------------------------------

   From [?]:
   
      [to be added]


Concentrator Instrument Performance Parameters
--------------------------------------------------------
 
   From [?]:
   
      [to be added]


Concentrator Mounting alignment
--------------------------------------------------------

   Concentrator mounting alignment is incorporated into the Concentrator 
   frame definition provided in the Genesis Frames definition kernel [2].
   
 
Concentrator FOV Definition
--------------------------------------------------------
 
   The orientation of the Concentrator FOV with respect to the Concentrator
   Frame (see [2]) is shown on the diagrams below:
   
   Spacecraft +X side view:
   ------------------------

                                     ^+Xcon
                                   __|____
       _____________________+Ycon / _|___ \    _______________________
      |                       \_<----o\+Zcon__/                       |
      |                           | \_/   |  |                        |
      |                     +Ysc <----o+Xsc  |                        |
      |                        __ |   |   | __                        |
      |_______________________/  \ \__|__/ /  \_______________________|
                                  \___V___/
                                      +Zsc        +Xsc and +Zcon are 
                                                    out of the page

   Spacecraft +Z side view:
   ------------------------
   
   
                              `    +Zcon    '
                               `     ^     '
                                `    |    '<-- Concentrator FOV
                                 `   |   '    nominal clear range 
                                  `__|__'         +/- 15 deg
                          +Ycon <----x_/___
                                  \       / SRC
       ________________________   _\__^+Xsc   ________________________
      [________________________]o[____|____]o[________________________]
                                  |   |   | 
                                  |__ | __|
                            +Ysc <----o 
                                       +Zsc


   Nominal clear FOV of the Concentrator is a cone with half-angle +/-15 
   degrees (see [4].) This FOV is defined with respect the to the 
   GNS_CONCENTRATOR frame with +Z being the FOV's boresight.
   
   The set of keywords defining Concentrator FOV is consistent with the 
   SPICELIB/cspice's GETFOV/getfoc_c interface.
    
   \begindata
   
      INS-47300_FOV_FRAME     = 'GNS_CONCENTRATOR'
      INS-47300_FOV_SHAPE     = 'CIRCLE'
      INS-47300_BORESIGHT     = (
                                 0.0             0.0             1.0
                                )
      INS-47300_FOV_BOUNDARY_CORNERS  =  (
                                 0.267949192431  0.0             1.0
                                )
                                
   \begintext


Platform ID
--------------------------------------------------------
 
   The Concentrator in mounted inside Sample Return Capsule (SRC) which is 
   rigidly attached to the GNS spacecraft deck. Therefore the value in the
   keyword below is -47000.

   \begindata

      INS-47300_PLATFORM_ID  = ( -47000 )
      
   \begintext