KPL/PCK

\beginlabel
PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = STREAM
RECORD_BYTES                 = "N/A"
^SPICE_KERNEL                = "di_hartley_2_v01.tpc"
MISSION_NAME                 = EPOXI
SPACECRAFT_NAME              = "DEEP IMPACT FLYBY SPACECRAFT"
DATA_SET_ID                  = "DIF-C/E/X-SPICE-6-V1.0"
KERNEL_TYPE_ID               = PCK
PRODUCT_ID                   = "di_hartley_2_v01.tpc"
PRODUCT_CREATION_TIME        = 2011-06-24T09:36:56
PRODUCER_ID                  = "SDC/CORNELL"
MISSION_PHASE_NAME           = "N/A"
PRODUCT_VERSION_TYPE         = ACTUAL
PLATFORM_OR_MOUNTING_NAME    = "N/A"
START_TIME                   = "N/A"
STOP_TIME                    = "N/A"
SPACECRAFT_CLOCK_START_COUNT = "N/A"
SPACECRAFT_CLOCK_STOP_COUNT  = "N/A"
TARGET_NAME                  = "103P/HARTLEY 2 (1986 E2)"
INSTRUMENT_NAME              = "N/A"
NAIF_INSTRUMENT_ID           = "N/A"
SOURCE_PRODUCT_ID            = "N/A"
NOTE                         = "See comments in the file for details"
OBJECT                       = SPICE_KERNEL
  INTERCHANGE_FORMAT         = ASCII
  KERNEL_TYPE                = TARGET_CONSTANTS
  DESCRIPTION                = "103P/HARTLEY 2 SPICE PC-Kernel file
providing comet size, shape, and rotation constants derived as the result of
post-encounter data analysis, created by EPOXI Science Data Center, Cornell
University.  "
END_OBJECT                   = SPICE_KERNEL
\endlabel


P_constants (PcK) SPICE kernel file for Hartley 2
===========================================================================
 
     By: B. Carcich & B. Semenov                   13-MAY-2011
 
 
Organization
--------------------------------------------------------
 
     The sections of this file are as follows.
 
     Introductory Information:
 
         --   Version description
 
         --   Disclaimer
 
         --   Sources
 
     Pck Data:
 
         --   Orientation constants for Comet 103P/Hartley 2 (1986 E2)
 
         --   Radii for Comet 103P/Hartley 2 (1986 E2)
 
 
Version description
--------------------------------------------------------
 
     This file was created by B. Carcich, Cornell University in
     November 2010 and then augmented with basic comments on May 7,
     2011. The original name of the file was nov17h2.tpc.

     More comments were added on by Boris Semenov, NAIF/JPL, on May 13,
     2011.
     
 
Disclaimer
--------------------------------------------------------
 
     This constants file may not contain the parameter values that you
     prefer. Note that this file may be readily modified by you or
     anyone else. NAIF suggests that you inspect this file visually
     before proceeding with any critical or extended data processing.
 
     NAIF requests that you update the `by line' and date if you modify
     the file.
 
 
Sources
--------------------------------------------------------
 
     The sources for the constants listed in this file are:
 
        1) Hartley 2 shape modeling work of Peter Thomas, Cornell
           University


Orientation constants for Comet 9P/Tempel 1
--------------------------------------------------------
 
     The inertial reference frame for these constants is J2000; this is
     the default reference frame for PCK orientation data.
 
     The epoch of the constants is 2010-11-04 13:59:47.7 UTC; is it
     specified as the Julian ephemeris date (JED) 2455505.0839569741 in
     the BODY1000041_CONSTANTS_JED_EPOCH keyword.
 
     The NAIF integer code for 103P/Hartley 2 is 1000041. See the
     NAIF_IDs required reading for further information on NAIF integer
     codes.
 
     The rotation constants below define the rotation state of
     103P/Hartley 2 at the Deep Impact encounter. They do not model
     excited (non-principal axis a.k.a. NPA) rotation observed in the
     the lightcurve data.

     The constants are given with many more decimal places than are
     justified by the uncertainties.

     \begindata
 
        BODY1000041_POLE_RA  = (     7.7329693920  0.0  0.0 )
        BODY1000041_POLE_DEC = (    45.0364608329  0.0  0.0 )
        BODY1000041_PM       = (   119.7444448517   472.1300000000  0.0 )

        BODY1000041_CONSTANTS_JED_EPOCH = (  2455505.0839569741 )

     \begintext


Radii for Comet 9P/Tempel 1
--------------------------------------------------------
     
     The radii provided below are A, B, C of ellipsoidal model:

        1 = (X/A)^2 + (Y/B)^2 + (Z/C)^2

     These were derived from least-squares fit to XYZs from plate 
     model version of Peter Thomas shape model

        hartley2_1202g.shape
 
     The constants are given with many more decimal places than are
     justified by the uncertainties.

     \begindata
 
        BODY1000041_RADII    = (  1.45661674  0.3813166  0.39456924  )
 
     \begintext

End of PCK file.