The utilization of a position sensor facility for the purpose of recording observations of one or more points (possibly over time). The observed points may be part of other facilities. The observing sensor facility defines the type of measurement via the facility class.

observation_def_s (PK, M: CHAR VARYING(19))

Surrogate key of the table.


observation_def_id (M: CHAR VARYING(40))

observation_definition.identifier
The name of the observation definition.


pos_meas_act_s (FSK, M: CHAR VARYING(19))

observation_definition.positioning_measurement_activity
The activity within which these observations were performed.
Defines a foreign key to table pos_meas_act.


r_existence_kd_nm (FNK, M: CHAR VARYING(40))

facility.ref_existence_kind
The existence kind for the facility e.g. actual, planned, required or predicted.
Defines a foreign key to table r_existence_kd.


description (O: CHAR VARYING(2000))

facility.description
A description of the facility.


baseline_node_s (FSK, O: CHAR VARYING(19))
baseline_node_t (O: CHAR VARYING(16))

observation_definition.baseline_node
This defines the observed point (e.g., node in network) which forms the baseline (i.e., angles are measured FROM this line). If there is only one point then this is the point being observed.
baseline_node_s: Implements a foreign key to a row in one of the tables projected from entity earth_surface_point depending on the value of the next column (See below).
baseline_node_t: Defines the name of the referenced table. Possible values are defined in @earth_surface_point.


observing_sensor_s (FSK, O: CHAR VARYING(19))

observation_definition.observing_sensor
This defines the position sensor that performed the observation. The Position Sensor Facility has a node from which measurements are made. That node can be positioned relative to other objects in a network.
Defines a foreign key to table pos_snsr_fcl.


reference_node_s (FSK, O: CHAR VARYING(19))
reference_node_t (O: CHAR VARYING(16))

observation_definition.reference_node
This defines the observed point which is being referenced (i.e., angles are measured TO this line).
reference_node_s: Implements a foreign key to a row in one of the tables projected from entity earth_surface_point depending on the value of the next column (See below).
reference_node_t: Defines the name of the referenced table. Possible values are defined in @earth_surface_point.


super_obs_s (FSK, O: CHAR VARYING(19))

observation_definition.super_observation
This defines the observation definition of which this definition is a part.
Defines a foreign key to table observation_def.


typical_fcl_name (FNK, O: CHAR VARYING(40))

facility.typical_facility
Gives the typical facility whose specification was used as the generic basis for this facility.
Defines a foreign key to table typical_fcl.