TORUS1:[GLL_RAW.INFO]EUV_FIDUCIAL_PHASE2.DOC


The EUV housekeeping information is contained in the last 24
bytes of every realtime buffer dump and is also reported every
2 rims in the LRS/record data.


     value        explanation of housekeeping values:
-----------------------------------------------------------------------------
 0     7E         FIDUCIAL
 1     7E         FIDUCIAL
 2     YY         transition sector pair mod 64 value: how many pixel
                  pairs to ignore before starting integration (there are
                  256 pixel pairs between RTI's (almost)) these have
                  further been subdivided into 4 groups of 64).
                  Recall that a pixel pair takes 330 microseconds to
                  process, 256 pixel pairs*330e-6=0.08448 seconds;
                  1 RTI= 0.06666 seconds.

 3     5A=90      active pixels x 2 taken directly from FPN
                  data matrix is usually 45pixels by 24 sectors

          command echo:
 4     58=88dec   echo of commanded starting angle
 5     0B         echo of commanded HV level(03) + Count bit set(8)
 6     01         echo of commanded scans/sector
 7     18=24dec   echo of commanded sectors
      
          Time at last integration start:
 8     A3         next to least significant byte of spacecraft RIM
                  counter
 9     E0         least significant byte of spacecraft RIM counter
       End time = 3448924 = 34a3e0
       
10     MF         mod 91 (minor frame count)
11     RR         mod 10 (RTI count)
     
          Angles:     
12     E6         most significant byte of delta Theta (delta
                  Theta is in degrees covered in 66 2/3 msec (1 RTI),
                  increment is 360/16,777,216  degrees)
13     A5         least signifigant byte of delta Theta 
                  3.14 rpm = E6A5 2.89 rpm = D270
       
14     TT         most significant byte of Theta
                  (Theta increment=360/65,536 degrees)
15     TT         least significant byte of Theta
       
16     41         software version #, expect 41 for version 4.1
       
       
17     00         msbyte of 16 bit integration counter (# of spins where
                  we actually integrated)
18     66         lsbyte of 16 bit integration counter       
       0066 = 182 integrations
       
19     01         real time RTI (exact current RTI when you read out
                  address EFB, 1 of 2 real-time values in housekeeping)
       
20     ZZ         transition sector pair mod 200 (decimal) value: how
                  many pixel pairs to ignore before starting integration
       
21     38=56      real-time minor frame counter (associated with EFB)
                  for real time data this should always be 56, because
                  the last packet of a buffer dump is always read out on
                  minor frame 56.
       
22     01         The number of times the s/w has had to wait to sync up
                  with s/c time. This value should be one, since there
                  is one sync up when the microprocessor starts. Any
                  count greater than one indicates that s/w is too busy
                  and is overwriting the s/c RTI 8 before it can
                  determine that it is really in sync.
23     00         spare