MSMainEnums.h

Classes

MSMainEnums -- Enums for the MeasurementSet main table (full description)

class MSMainEnums

Types

enum PredefinedColumns

UNDEFINED_COLUMN = 0

"True" columns are defined.
TYPE - UNIT - MEASURE

ANTENNA1

ID of first antenna in antenna-pair. This is a key into the ANTENNA table. Ranges from 0 to NUM_ANT-1.
Int

ANTENNA2

ID of second antenna in antenna-pair. For SD ANTENNA1==ANTENNA2
Int

ARRAY_ID

ARRAY id.
Int.

DATA_DESC_ID

Data description id
Int.

EXPOSURE

Effective integration time (i.e.<=INTERVAL)
Double - s.

FEED1

Feed id on ANTENNA1.
Int.

FEED2

Feed id on ANTENNA2.
Int.

FIELD_ID

Unique id for this pointing (or drift scan)
Int

FLAG

The data flags, array of bools with same shape as data. Data is flagged bad if FLAG is True.
Bool(Nc, Nf)

FLAG_CATEGORY

Flag category, allows for multiple categories of flagging, which can selectively be reset. The cumulative effect is reflected in FLAG. This column should have an attached keyword CATEGORY which is a String (Ncat) of categories (e.g, ONLINE, FLAG_CMD, INTERACTIVE)
Bool (Nc, Nf, Ncat)

FLAG_ROW

Flag all data in this row if True.
Bool

INTERVAL

The extent of this sample, sampling interval.
Double - s.

OBSERVATION_ID

Index into OBSERVATION table.
Int.

PROCESSOR_ID

Processor Id, points to PROCESSOR table with information on the correlator or backend setup.
Int

SCAN_NUMBER

Scan number. Int.

SIGMA

Estimated rms noise for channel with unity bandpass response.
Float(Nc) - Same units as the DATA column.

STATE_ID

State Id, points to STATE table with info on current observing mode, calibration and reference signals etc. (Mainly single dish)
Int

TIME

Modified Julian Day number (JD-2400000.5) for midpoint of integration. For high precision timing, add the value from TIME_EXTRA_PREC.
Double - s - EPOCH.

TIME_CENTROID

Modified Julian Day number (JD-2400000.5) for centroid of integration. Double - s - EPOCH.

UVW

UVW coordinates.
Double(3) - m - UVW.

WEIGHT

Weight of spectrum. This is the weight assigned by the correlator and does NOT get overwritten by e.g. imaging tasks that do weighting.
Float(Nc).

NUMBER_REQUIRED_COLUMNS = WEIGHT,

Not a column, but just an enum specifying the number of required columns. # Note: first enum after this one should be assigned value of this enum.

ANTENNA3

Antenna3 - for triple correlations products.
Int

BASELINE_REF

Reference antenna for this baseline, True for ANTENNA1
Bool

CORRECTED_DATA

The Corrected complex visibility data (optional).
Complex(Nc, Nf)

DATA

Complex visibility matrix. The UNITS are unspecified to allow for the calibrated data to show up as a DATA column as well but in a calibrated MS.
Complex(Nc, Nf)

FEED3

Feed id on ANTENNA3
Int

FLOAT_DATA

Floating point data column. For simple single dish work this can be used instead of the complex DATA column.
Float(Nc, Nf)

IMAGING_WEIGHT

The imaging weights (optional).
Float(Nf)

LAG_DATA

Complex correlation function or lag spectrum for each correlation product
Complex(Nc, Nl)

MODEL_DATA

The model visibility data (optional).
Complex(Nc,Nf)

PHASE_ID

Switching phase Id
Int

PULSAR_BIN

For a pulsar the correlations are assumed to be measured for a limited number of pulse phase bins. This is the particular bin for which this data was measured. (optional)
Int.

PULSAR_GATE_ID

Unique id for this pulsar gate. Index into PULSAR_GATE table. (optional)
Int.

SIGMA_SPECTRUM

Estimated rms noise for each data point. To be used instead of SIGMA if present.
Float(Nc,Nf) - Same units as the DATA column.

TIME_EXTRA_PREC

Additional precision for TIME if required. Add this to TIME to obtain the exact EPOCH.
Double - s.

UVW2

UVW for second pair of triple correlation product.
Double(3) - m

VIDEO_POINT

Zero frequency point - needed for transform back to lag domain
Complex(Nc)

WEIGHT_SPECTRUM

Weight for each channel. To be used instead of WEIGHT if present.
Float(Nf).

NUMBER_PREDEFINED_COLUMNS = WEIGHT_SPECTRUM

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

enum PredefinedKeywords

UNDEFINED_KEYWORD = 0

"True" keywords are defined.

ANTENNA

Antenna subtable. Antenna positions, mount-types etc.

DATA_DESCRIPTION

Data Description subtable. Gives spectral window and polarization id.

FEED

Feed subtable. Responses, offsets, beams etc.

FIELD

Field subtable. Position etc. for each pointing.

FLAG_CMD

Flag command subtable. List of flag commands.

HISTORY

History information subtable.

MS_VERSION

MS Version number.
Float.

OBSERVATION

Observation subtable. Project, observer, schedule.

POINTING

Pointing information subtable..

POLARIZATION

Polarization setup information subtable.

PROCESSOR

Back-end processor information subtable. Description of correlator etc.

SPECTRAL_WINDOW

Spectral window subtable. Frequencies, bandwidths, polarizations.

STATE

State subtable. Observing modes and states (cal, ref etc.)

NUMBER_REQUIRED_KEYWORDS = STATE,

Not a keyword, but an enum specifying the number of required keywords The last required keyword should be set to this enum

CAL_TABLES

Calibration tables associated with this MS.
Calibration tables associated with this MS.
Table(NUM_CAL_TABLES)

DOPPLER

Doppler tracking information subtable.

FREQ_OFFSET

Frequency offset information subtable.

SORT_COLUMNS

Listing of sort columns for each sorted table.
String(NUM_SORTED_TABLES)

SORT_ORDER

Listing of sort orders for each sorted table.
String(NUM_SORTED_TABLES)

SORTED_TABLES

Sorted reference tables of the main table. First one is main table.
Table(NUM_SORTED_TABLES)

SOURCE

Source subtable. Positions etc. for each source.

SYSCAL

SysCal subtable. System calibration data (Tsys etc.)

WEATHER

Weather subtable. Weather info for each antenna.

NUMBER_PREDEFINED_KEYWORDS = WEATHER

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

Interface

Description

Etymology

Synopsis

Example

To Do

All the todo items which may be related to this class are grouped with the todo items for MeasurementSet

Member Description

enum PredefinedColumns

enum PredefinedKeywords