Notes: This table defines the state parameters for a particular data record as they refer to external
loads, calibration sources or references, and also characterizes the observing mode of the data
record, as an aid to defining the scheduling heuristics. It is indexed directly via STATE_IDin
MAIN .
SIG
If SIG and REF are both together false there is blanking.
REF
True for a generic reference phase in the switching scheme. REF would be true when on
chopper or any load, or when on a phase reference calibrator in the Fast Switching observing
mode.
CALLOAD_NUM
Calibration load number. The CALWIDGET table contains the
temperature of the loads which was previously (MSv2) directly provided here in this
STATE table. The CALWIDGET table is referenced via the primary keys in the MAIN
and SYSCAL tables and this item CALWIDGET_NUM is relevant only auto-correlation
measurements i.e. when ANTENNA1 and ANTENNA2 are identical.
NB: These loads have been moved to that new table to support the fact that the effective
load temperature may differ from one receiver to an other, from one antenna to an other
and from one spectral window to an other.
WEIGHT
Relative weight of switch state for final processing.
SUB_INTEGRATION
Used to enumerate sub-integrations (from 1 for the 1st sub-integration
of an integration); implicitly associated to the number of sub-integration this being
enumerated relative the integration.
WARNING: former column name was SUB_SCAN . Renamed to match the concept of
INTEGRATION given in the ALMA glossary
OBS_MODE
Observing mode. .
Examples (reserved attributes will have to be defined): FSWI (frequency swithing), WSWI
(wobbler switching) ONOF (ON OFF). WARNING: here OBS is not attached to the concept of OBSERVATION given in the
ALMA glossary.
OBS_INTENT
Intent of the sub-integration. Examples (reserved attributes will have to be
defined): FOCUS, PHASEREF, POINTING. Not required to be unique .
FLAG_ROW
True if the row does not contain valid data. Does not imply flaging in MAIN