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File index

The Entry Indexes, gathered into Extension Indexes, are ruled by the Classic Data Container specifications. According to these, the index contents are let free to Class. They are described below for files version 1 and 2.




Table: Index version 1 (found in files version 1). Note that index length is 32 words (so that 4 of them fit in a 128 words record), even if 10 words are left unused.
Position Parameter Fortran Kind Unit Purpose
1 bloc Integer*4 Record Record where observation is to be found
2 num Integer*4   Observation number
3 ver Integer*4   Observation version
4-6 csour Character*12   Source name
7-9 cline Character*12   Line name
10-12 ctele Character*12   Telescope name
13 dobs Integer*4 GAG date Observation date
14 dred Integer*4 GAG date Reduction date
15 off1 Real*4 Radian Lambda offset
16 off2 Real*4 Radian Beta offset
17 type Integer*4 Code Coordinate system
18 kind Integer*4 Code Kind of data
19 qual Integer*4 Code Quality of data
20 scan Integer*4   Scan number
21 posa Real*4 Radian Position angle (drifts)
22 subscan Integer*4   Subscan number
23-32 (unused)     Padding to 32 words




Table: Index version 2 (found in files version 2)
Position Parameter Fortran Kind Unit Purpose
1-2 bloc Integer*8 Record Record where observation is to be found
3 word Integer*4 Word Word where the obs. starts in this record
4-5 num Integer*8   Observation number
6 ver Integer*4   Observation version
7-9 csour Character*12   Source name
10-12 cline Character*12   Line name
13-15 ctele Character*12   Telescope name
16 dobs Integer*4 GAG date Observation date
17 dred Integer*4 GAG date Reduction date
18 off1 Real*4 Radian Lambda offset
19 off2 Real*4 Radian Beta offset
20 type Integer*4 Code Coordinate system
21 kind Integer*4 Code Kind of data
22 qual Integer*4 Code Quality of data
23 posa Real*4 Radian Position angle (drifts)
24-25 scan Integer*8   Scan number
26 subscan Integer*4   Subscan number


next up previous contents index
Next: The Header and Data Up: Internal CLASS Format Previous: File organization   Contents   Index
Gildas manager 2018-05-18