! This file defines the file pattern for POD files coming from the DDF
!
Source 		= 2		! DDF POD file
     
File_Pattern	= 
   Header	= 54		! 54 bytes of header information
   Data		= -1		! unknown number of images expected
   Trailer	= 4		! nominally 2:QAC, 2:MPKT

Image_Pattern	= 
   Header	= 0		! The internal header is the first packet
   Data		= -1		! Unknown number of packets
   Trailer	= 0		! No trailer for each image

Packet_Pattern	= 
   Header	= 0		! No packet synch data
   Data		= -1		! Unknown number of segments
   Trailer	= 0		! Packets don't have trailing synch

Segment_Pattern	= 
   Header	= 0		! 0 bytes of synch for each segment
   Data		= 122		! 122 bytes of data in each segment
   Trailer	= 0		! no trailing synch 

Instr_position	= 44		! Location of the instrument code

!--------------------------------------------------------------------------
! This section contains the bytes from the beginning of the file which
! uniquely identify the file as a DDF POD file.

Byte  	= 0
Compare = EQ
Value	= 58		! =0x3A Mission ID

Byte	= 40
Compare = EQ
Value	= 54		! DDF header size

Byte	= 42
Compare = EQ
Value	= 01		! DDF selected groups

Byte	= 43
Compare = EQ
Value 	= 04		! DDF selected options