File: ULYCOS_HFT_10M_FMT.txt                                 Version: IC
------------------------------------------------------------------------ 

COSPIN-HFT RECORD FORMAT (REFERENCE: A&A,92,2 page 384, table 9)

LOCATION: ESTUDS::DKA500:[UDS.COSPIN.HFT]UCOSHFTA90296.DAT;1

UDS REPRESENTATIVE: D. ANGLIN (DAVE@HIALUY1.HIA.NRC.CA)

RECORD FORMAT:

      DIMENSION F1J(16),F2S(32)
C FREE FORMAT
      READ(1,*)IYEAR,IDOY,IHOUR,IMIN,ISEC,
     .         F1J,F2L,F2H,F3,F4,F5,F2S

PARAMETER LIST:

      IYEAR: year
      IDOY:  day of year
      IHOUR: hour
      IMIN:  minute
      ISEC:  second
      F1J(0):  Z>=1   (proton 0.28-7.0 MeV)
      F1J(1):   "     (proton 0.50-2.27 MeV)
      F1J(2):   "     (proton 0.76-1.37 MeV)
      F1J(3):  Z>=2   (helium 0.31-5.4 MeV/n)
      F1J(4):   "     (helium 0.38-3.9 MeV/n)
      F1J(5):   "     (helium 0.45-2.9 MeV/n)
      F1J(6):   "     (helium 0.51-2.26 MeV/n)
      F1J(7):   "     (helium 0.58-1.91 MeV/n)
      F1J(8):   "     (helium 0.64-1.66 MeV/n)
      F1J(9):   "     (helium 0.71-1.50 MeV/n)
      F1J(10):  "     (helium 0.78-1.35 MeV/n)
      F1J(11):  "     (helium 0.85-1.25 MeV/n)
      F1J(12):  "     (helium 0.91-1.17 MeV/n)
      F1J(13):  "     (helium 0.98-1.12 MeV/n)
      F1J(14):  "     (oxygen 0.34-OO MeV/n)
      F1J(15):  "     (oxygen 0.36-OO MeV/n)
      F2L:     Z>=1   (proton 0.29-6.7 MeV)
      F2H:      "     (proton 0.55-1.95 MeV)
      F3:      Z>=2   (helium 0.68-1.56 MeV/n)
      F4:      Z>=3   (carbon 0.8-4.9 MeV/n, oxygen 0.64-10.7 MeV/n)
      F5:      Z>=12  (sulphur 1.28-8.5 MeV/n, iron 0.8-34 MeV/n)
      F2S:     Z>=1   (see energy ranges for F2L and F2H)  sectors 1 to 
                      32

FLUX UNITS:      (/cm2/s/sr)

TIME RESOLUTION: 10 minutes

NOTES: 

1)      All data from the HFT are accumulated for an integral number of
        spacecraft rotations.  Counts in accumulation intervals which 
        span either the start or end time of a 10 minute interval are 
        apportioned based on the fraction of the accumulation interval in
        the 10 minute interval.

2)      At the lowest science bitrate (128 bps), the full F2S telemetry
        cycle is 1024 seconds and, because the F2S data are accumulated 
        eight sectors at a time, approximately every other record will 
        contain fill F2S data.

3)      Although the data are averaged over several telemetry cycles, the
        software will ensure that either the F2L or F2H data are fill in 
        any record depending on the operating mode of the HFT for the 
        majority of the 10 minute interval.  The energy range for the F2S
        channel is the same as that for the non-fill value of F2L or F2H.

4)      The energy ranges shown are for the main ion species in a data
        channel.  The fraction of other ion species in a channel can vary
        substantially from one period to another.  When the energy 
        spectra are steep, heavier ions may in fact dominant a channel.  
        Thus, caution is required in the interpretation of these data.  
        The energy limits are based on accelerator calibrations and 
        estimations from range-energy loss tables for particles incident 
        at right angles to the HFT detector.  For precise work, these 
        intervals need to be adjusted because of the 60 degree opening 
        angle of the HFT collimator.