- UNDEFINED_COLUMN = 0
- "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 = TIME,
- Number of required columns
- FOCUS_LENGTH
- Focus length
Focus length
Double - m- PHASED_FEED_ID
- Phased feed id to index into PHASED_FEED table
Int- NUMBER_PREDEFINED_COLUMNS = PHASED_FEED_ID
- Not a column, but just a final enum specifying the number of enums.
- UNDEFINED_KEYWORD = 0
- "True" keywords are defined.
- NUMBER_PREDEFINED_KEYWORDS = 0
- Not a keyword, but just a final enum specifying the number of enums.