KPL/PCK

\beginlabel
PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = STREAM
RECORD_BYTES                 = "N/A"
^SPICE_KERNEL                = "ds1_borrelly_v01.tpc"
MISSION_NAME                 = "DEEP SPACE 1"
SPACECRAFT_NAME              = "DEEP SPACE 1"
DATA_SET_ID                  = "DS1-A/C-SPICE-6-V1.0"
KERNEL_TYPE_ID               = PCK
PRODUCT_ID                   = "ds1_borrelly_v01.tpc"
PRODUCT_CREATION_TIME        = 2003-10-06T10:37:49
PRODUCER_ID                  = "NAIF/JPL"
MISSION_PHASE_NAME           = "BORRELLY ENCOUNTER"
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                  = "19P/BORRELLY 1 (1904 Y2)"
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                = "SPICE Planetary Constants file for comet
Borrelly. "
END_OBJECT                   = SPICE_KERNEL
\endlabel


P_constants (PcK) SPICE kernel file
===========================================================================
 
     By: Boris Semenov (NAIF)    21-SEP-2001
 
 
Organization
--------------------------------------------------------
 
     The sections of this file are as follows.
 
     Introductory Information:
 
         --   Version description
 
         --   Disclaimer
 
         --   Sources
 
     Pck Data:
 
         --   Orientation constants for Comet Borrelly
 
         --   Radii for Comet Borrelly
 
 
Version description
--------------------------------------------------------
 
     This file was created on September 21, 2001.
 
     This is a preliminary PCK containing placeholder values for pole
     direction and prime meridian location.
 
 
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) E-mail from Michael Hicks, 20 Sep 2001.

        2) Lamy L. et al. "HST observations of the nucleus and inner
           coma of comet 19P/1904 Y2 (Borrelly)", Astron. Astrophys.
           337, 945-954 (1998)


Orientation constants for Comet Borrelly
--------------------------------------------------------
 
     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 J2000; this is Julian ephemeris date
     (JED) 2451545.0.
 
     The NAIF integer code for Borrelly is 1000005. See the NAIF_IDs
     required reading for further information on NAIF integer codes.
 
     The pole has been chosen to point toward ecliptic long = 60 deg,
     ecliptic lat = -57 (from [1].). The RA and DEC below are those of
     the specified RA/DEC in J2000 coordinates.
 
     The prime meridian W0 term has been arbitrarily chosen to be zero
     at the J2000 epoch. The W1 term corresponds to a period of 25.0
     hours, as indicated by (2).
 
     The significance of the numbers given below is far lower than
     indicated by the number of digits shown.
 
     \begindata
 
        BODY1000005_POLE_RA    = (  70.43761855684120    0                0 )
        BODY1000005_POLE_DEC   = ( -35.58042611525421    0                0 )
        BODY1000005_PM         = (   0                 345.6000000000000  0 )
 
     \begintext


Radii for Comet Borrelly
--------------------------------------------------------
     
     The radii are a/b/c = 4.4km/1.8km/1.8km (from [1].) Units are km.  
 
     \begindata
 
        BODY1000005_RADII     =   (  4.4    1.8   1.8  )
 
     \begintext