Voyager Magnetometer Summary File Header Record Format
Header Record Components
Header Block: 400 bytes
Header Block Description
word type description
---- ---- -----------
1 A*4 Data Identifier ("HDR1")
2 A*4 Telemetry Format ("ENG ","CR-1","CR-2","CR-3","CR-4","CR-5",
"CR-6","CR-7","CR5A","GS-2","GS-3","GS-4",
"GS-6","GS-7","GS-8","GS10","G10A","OC-1",
"OC-2","UV5A","****")
3 A*4 S/C Identification ("FLT1","FLT2","PTM ","SIM1","SIM2","UKWN")
4 I*2 Year of Data
4.5 I*2 Day of Year (Jan. 1 = 1)
5 I*2 Hour of Day
5.5 I*2 Minute of Hour
6 I*2 Second of Minute
6.5 I*2 Millisecond of Second
7 R*4 Decimal Year of Data Processing
8 R*4 Decimal Day of Data Processing (Jan. 1 = 0)
9 A*4 Month of Data Processing
10 A*4 Day of Data Processing
11 A*8 Run type (CRUISE or ENCOUNTR)
13 A*4 Coordinate system (PL = payload, HG = heliographic,
S3=Jupiter, L1=Saturn, U1=Uranus, N1=Neptune)
17 I*2 Data Identifier (LFM=2,HDR1=8)
17.5 I*2 Data Rate (GS-X=0,CR-1=1,CR-2=2,CR-3=3,CR-4=4,CR-5=5,
CR-6=6,CR-7=9,ENG=8,CR5A=13,UV5A=13)
* CR5A and UV5A are both VIM-5 modes
18 I*4 Spare
19 A*8 Data Confidence Flag (indicates reduced data confidence due to
software/hardware intervention)
21 I*4 Spare
22 I*4 Spare
23 I*4 Spare
24 I*4 Spare
25 I*4 Spare
26 I*4 Spare
27 I*4 Spare
28 I*4 Spare
29 I*4 Spare
30 I*2 Number of primary data words
30.5 I*2 Number of secondary data words
31 I*2 Number of primary full words
31.5 I*2 Number of secondary full words
32 I*2 Record number in file
32.5 I*2 Number of words remaining in logical record
33 A*8 EDR name
34 A*8 EDR name
35 A*8 EDR name
36 A*8 EDR name
37 A*8 EDR name
38 A*8 EDR name
39 A*8 EDR name
40 A*8 EDR name
41 A*8 EDR name
42 A*8 EDR name
53 A*8 SEDR name
54 A*8 SEDR name
55 A*8 SEDR name
56 A*8 SEDR name
57 A*8 SEDR name
58 A*8 SEDR name
77-80 32(L*1) LOGOCAL PROCESSING FLAGS
93 A*8 ZERO TABLE NAME
94 Spare
95 A*8 SENSOR ALIGNMENT TABLE NAME
