KPL/FK

This is the initial frame kernel for the Solar Probe Plus spacecraft.
It contains only the information necessary to link the spacecraft and solar
panel frames into the SPICE frame system.
Instrument information will be added at a later time.

Contact Information:

   Wen-Jong Shyong, JHU/APL, 443-778-8564, shyonw1@jhuapl.edu

Version

   Prototype Release -- May 11, 2015 -- Wen-Jong Shyong

   \begindata

   FRAME_SPP_SPACECRAFT        = -96000
   FRAME_-96000_NAME           = 'SPP_SPACECRAFT'
   FRAME_-96000_CLASS          = 3
   FRAME_-96000_CLASS_ID       = -96000   
   FRAME_-96000_CENTER         = -96
   CK_-96000_SCLK              = -96
   CK_-96000_SPK               = -96

   FRAME_SPP_SOLARPANEL_PLUS   = -96001
   FRAME_-96001_NAME           = 'SPP_SOLARPANEL_PLUS'
   FRAME_-96001_CLASS          = 3
   FRAME_-96001_CLASS_ID       = -96001
   FRAME_-96001_CENTER         = -96
   CK_-96001_SCLK              = -96
   CK_-96001_SPK               = -96
 
   FRAME_SPP_SOLARPANEL_MINUS  = -96002
   FRAME_-96002_NAME           = 'SPP_SOLARPANEL_MINUS'
   FRAME_-96002_CLASS          = 3
   FRAME_-96002_CLASS_ID       = -96002
   FRAME_-96002_CENTER         = -96
   CK_-96002_SCLK              = -96
   CK_-96002_SPK               = -96

   FRAME_SPP_HIGH_GAIN_ANTENNA = -96003
   FRAME_-96003_NAME           = 'SPP_HIGH_GAIN_ANTENNA'
   FRAME_-96003_CLASS          = 3
   FRAME_-96003_CLASS_ID      = -96003
   FRAME_-96003_CENTER        = -96
   CK_-96003_SCLK             = -96
   CK_-96003_SPK              = -96

   \begintext

   Solar Array Reference Frames and Nominal Alignments

     The default transformation matrix for the solar array frames to the
     S/C body frame for flap angle of 0 degree and feather angle of 0 degree
     is:
  
         [X]      [ -1   0   0 ] [X]
         [Y]    = [  0  -1   0 ] [Y]
         [Z]S/C   [  0   0   1 ] [Z]+Y SA
   
         [X]      [  1   0   0 ] [X]
         [Y]    = [  0   1   0 ] [Y]
         [Z]S/C   [  0   0   1 ] [Z]-Y SA

   High-Gain Antenna Nominal Alignment

     The HGA reference axis is nominally the spacecraft -Y axis.
     The reference angle is nominally 90 degree and the reference axis is
     nominally the sapcecraft -X axis.

         [X]      [  0   0  -1 ] [X]
         [Y]    = [  0  -1   0 ] [Y]
         [Z]S/C   [ -1   0   0 ] [Z]HGA

     A more general representation of the transormation for a specified
     rotation angle about the gimbal axis is:

         [X]      [ -cos(s)   0  -sin(s) ] [X]
         [Y]    = [    0     -1     0    ] [Y]
         [Z]S/C   [ -sin(s)   0   cos(s) ] [Z]HGA

     where s varires between 45 degree and 135 degree as the antenna rotates
     about the -Y axis.