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casacore::MSFeedEnums Class Reference

Enums for the MeasurementSet FEED table. More...

#include <MSFeedEnums.h>

Inheritance diagram for casacore::MSFeedEnums:
casacore::MSFeed

Public Types

enum  PredefinedColumns {
  UNDEFINED_COLUMN,
  ANTENNA_ID,
  BEAM_ID,
  BEAM_OFFSET,
  FEED_ID,
  INTERVAL,
  NUM_RECEPTORS,
  POL_RESPONSE,
  POLARIZATION_TYPE,
  POSITION,
  RECEPTOR_ANGLE,
  SPECTRAL_WINDOW_ID,
  TIME,
  NUMBER_REQUIRED_COLUMNS,
  FOCUS_LENGTH,
  PHASED_FEED_ID,
  NUMBER_PREDEFINED_COLUMNS
}
 The FEED table colums with predefined meaning. More...
 
enum  PredefinedKeywords {
  UNDEFINED_KEYWORD,
  NUMBER_PREDEFINED_KEYWORDS
}
 Keywords with a predefined meaning. More...
 

Detailed Description

Enums for the MeasurementSet FEED table.

Intended use:

Public interface

Review Status

Reviewed By:
UNKNOWN
Date Reviewed:
before2004/08/25

Etymology

This class contains the enums for the MeasurementSet FEED table

Synopsis

This class does nothing. It is merely a container for the enumerations used by the MSFeed class. These enumerations define the standard columns, keywords.

Example

See the documentation for MeasurementSet for examples on the use of these enumerations.

Definition at line 60 of file MSFeedEnums.h.

Member Enumeration Documentation

The FEED table colums with predefined meaning.

Enumerator
UNDEFINED_COLUMN 

"True" columns are defined.


TYPE - UNIT - MEASURE

ANTENNA_ID 

Antenna Id.


Int.

BEAM_ID 

Index in BEAM model table.

This is a specialized model e.g. NRAO_VLA_BEAM would have parameters for polynomial.
Int.

BEAM_OFFSET 

Beam position offset (on sky but in antenna reference frame).


Double(2,NUM_RECEPTORS) - rad - DIRECTION

FEED_ID 

Feed id
Int.

INTERVAL 

Interval for which this set of parameters is accurate
Double - s.

NUM_RECEPTORS 

Number of receptors on this feed (probably 1 or 2)
Int.

POL_RESPONSE 

D-matrix i.e.

leakage between two receptors i.e. only makes sense if NUM_RECEPTORS>1. Dimensionless coupling numbers.
Complex(NUM_RECEPTORS,NUM_RECEPTORS)

POLARIZATION_TYPE 

Type of polarization to which a given RECEPTOR responds.

Probably R, L or X, Y.
String(NUM_RECEPTORS)

POSITION 

Position of feed relative to feed reference position for this antenna
Double(3) - m - POSITION.

RECEPTOR_ANGLE 

The reference angle for polarization.

Converts into Parallactic angle in the Sky domain.
Double(2) - rad

SPECTRAL_WINDOW_ID 

Spectral Window id
Int.

TIME 

Midpoint of time for which this set of parameters is accurate
Double - s - EPOCH.

NUMBER_REQUIRED_COLUMNS 

Number of required columns.

FOCUS_LENGTH 

Focus length
Double - m.

PHASED_FEED_ID 

Phased feed id to index into PHASED_FEED table
Int.

NUMBER_PREDEFINED_COLUMNS 

Not a column, but just a final enum specifying the number of enums.

Definition at line 63 of file MSFeedEnums.h.

Keywords with a predefined meaning.

Enumerator
UNDEFINED_KEYWORD 

"True" keywords are defined.

NUMBER_PREDEFINED_KEYWORDS 

Not a keyword, but just a final enum specifying the number of enums.

Definition at line 121 of file MSFeedEnums.h.


The documentation for this class was generated from the following file: