CALDATA Calibration data selection

Name

Format

Units

Measure

Comments

Columns

Data description

NUM_SCAN

Int Number of different scans Nscan in this Scheduling Block

NUM_FIELD

Int Number of fields Nfield

NUM_SOURCE

Int Number Nsrcof sources

NUM_ASSOC

Int Number Nassocof associated CAL_DATA_ID

Data

CAL_TYPE

String Type/Kind of calibration

SCAN_LIST

Int( Nscan) List of scan numbers

(ASSOC_CAL_DATA_ID)

Int( Nassoc) Associated CAL_DATA_ID identifier(s)

(ASSOC_CAL_NATURE)

String Nature of the association

Query Information

EXECBLOCK_UID

String ExecBlock UID

START_TIME_OBSERVED

Double s EPOCH Start time of observation

END_TIME_OBSERVED

Double s EPOCH End time of observation

(FREQUENCY_GROUP)

Int Frequecy group

(FREQ_GROUP_NAME)

String Frequency group name

(FIELD_NAME)

String( Nfield) Name of field

(CODE)

String( Nfield) Special characteristics of field

(SOURCE_NAME)

String( Nsrc) Name of source as given during observations

(CODE)

String( Nsrc) Special characteristics of source. eg. Bandpass calibrator

(SCAN_INTENT)

String( Nscan) Intent for the scan

Notes: This table contains all input data description generic columns. There is one row (or several rows in the case of calibration data sets spread over several SDM data sets) for each calibration data set. The actual scan list together with the ExecBlock identifier provide an unambiguous reference to the raw data. Non mandatory query information are also included to better characterize the calibration data selection when the data are not present in the calibration result.
CAL_DATA_ID
Calibration data identifier
CAL_REDUCTION_ID
Calibration reduction identifier
NUM_SCAN
Number Nscanof scans
NUM_FIELD
Number Nfieldof fields
NUM_SOURCE
Number Nsrcof sources
NUM_ASSOC
Number of associated CAL_DATA_ID identifier(s)
CAL_TYPE
The type of calibration. This defines te sub-table in which the calibration results are to be found, and consequently the data structure of the calibration results.
SCAN_LIST
List of Nscan scans
ASSOC_CAL_DATA_ID
Full list of associated CAL_DATA_ID identifier(s). Not that if an ExecBlock A is associated e.g. to the ExecBlocks B and C, B must be associated to A and C and C to A and B. When a calibration result deals with data originating from several ExecBlocks, ASSOC_CAL_DATA_ID must be used.
ASSOC_CAL_NATURE
Nature of the association
EXECBLOCK_UID
Excution block identifier
START_TIME_OBSERVED
The epoch when the observations used to derive the calibration were started
END_TIME_OBSERVED
The epoch when the observations used to derive the calibration were terminated
FREQUENCY_GROUP
The frequency group to which the spectral window belongs. This is used to associate spectral windows for joint calibration purposes.
FREQ_GROUP_NAME
The frequency group name.
FIELD_NAME
Field names
CODE
Field codes indicating special characteristics of the field
SOURCE_NAME
Source names
CODE
Source code, used to describe any characteristics for the source, such as the nature of the calibrator.
SCAN_INTENT
Scan intents