TORUS1:[GLL_RAW.INFO]UVS_P1_PB_HDR.DOC

UVS Phase 1 File headers:

      The following list documents the contents of the header
information located at the beginning of the UVS data records.
All values and reference locations are two byte integers
unless otherwise specified.  (In an EUV file, you may associate to
an Integer*2 to read the header and revert to a byte associate for 
the data.)  
      These values are valid for all data taken before jupiter ops.
After this time, the definitions for several header values change.
These values are marked with a # in the list below.   		
			Revision date: 31-MAY-1996 JJG
						       

Index Values in 
IDL
00               ERT Year (last 2 digits only)
01                   Day of Year
02                   Hour
03                   Minute
04                   Second
05                   MSecond
34               SCE Year                           !Added Feb 13
06                   Day of Year
07                   Hour
08                   Minute
09                   Second
10                   MSecond
11#              Format FID in low 5 bytes;Time flags in top
               Spacecraft Clock 
12                   RIM top byte   (Construct RIM with [top*256.]+bottom)
13                   RIM Least Significant two bytes (bottom) 
14                   MOD 91
15                   MOD 10
16                   MOD 8  (=RTI)
17               SCLK Flags
18-28         Data Presence Indicators (0=OK,1=absent,one flag/minor frame)
29               Top 3 bits are final DPIs; bottom (LSB) bit is P/B flag
30#              Spare
31               Source indicator (-2=no data (lasp), -1=no data,partial (EDR), 
                                    1=certified, 2=manipulated at LASP)
32               Software version number (integer*1000=j.iii) (will be less 
		 than 10,000 for phase 1 data files)
33               UVS only: scan direction (0=up,1=down grating)
34               SCE Yr (see above)
35               Number of -1's in scan		|| Not in EUV
36               Number of 0's in scan		|| Not in EUV
37#              Number of data followed by 0's	|| Not in EUV
38#              UVS: data start locn in JPL array; EUV:=0
39               UVS: Scan number within RIM (range:1-14); EUV:=0

40-46       7 Sync words = 255
47             Starting Wavelength
48             UVS status byte # 1
49             UVS status byte # 2
50             Low Voltage (+10V)
51             Low Voltage ( +5V)
52             High Voltage F-Channel
53             High Voltage N-Channel
54             High Voltage G-Channel
55             Logic Temperature
56             Detector Temperature
57             Limb Sensor 

58-585    data
		   Max value is F-Channel:  15-bit word decompressed

586-599#   12 AACS values + 2 spares

End