EVLA Correlator Output Binary Data Format Specification
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EVLA Correlator Output Binary Data Format Specification

Martin Pokorny

National Radio Astronomy Observatory
 EVLA Computing Division
Revision History
Revision 0.116 Jan 2007mpp
Initial version.
Revision 0.215 Feb 2007mpp
Update after first internal EVLA review.
Revision 0.3In progressmpp
Partly updated after input from ALMA and CASA personnel.

Table of Contents

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1. Introduction
Context
Relation to ALMA correlator ouput data stream document
Relation to CASA Science Data Model
2. Output format MIME structure
3. Integration header
sdmDataHeader element
Children
Attributes
time element
dataOID element
Attributes
execBlock element
Children
Attributes
scanNum element
subscanNum element
integrationNum element
numAntenna element
axes attribute
baselineFlags element
Attributes
actualTimes element
Attributes
actualDurations element
Elements
Attributes
lut element
Elements
Attributes
zeroLags element
Attributes
numAPC element
baseband element
Children
spectralWindow element
Attributes
crossData element
Attributes
autoData element
Attributes
4. Binary tables
Null size tables
Omitting axes
Value ordering
Table descriptions
actualTimes table
actualDurations table
baselineFlags table
zeroLags table
crossData table
autoData table
A. Appendices
Output data file example
Example of omitted axes in binary table
Binary table sizes
Data header XML schema
RELAX NG compact syntax schema
W3C XML schema
References

List of Figures

4.1. Binary table index structure

List of Tables

4.1. Binary table index order and dependencies
A.1. Table size variables

List of Examples

A.1. Omitted axes table header snippet

List of Equations

A.1. Binary table size
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