FASDataBlock
FASDataBlock
Final Approach Segment Data Block. The additional information about the Precision Final Segment. Most attributes describe the LPV path point record required for WAAS procedures.
| Properties | Definition | Type |
|---|---|---|
| CRCRemainder | Hexadecimal representation of the 32-bit CRC used to check the integrity of the FAS data block. | (string) ValHexType |
| annotation | - | |
| approachPerformanceDesignator | Approach Performance Designator. A number from 0 to 7 that identifies the type of approach. | (unsignedint) NoSequenceType |
| codeICAO | The first two designators of the ICAO location identifier, as identified in ICAO Doc 7910. | (string) CodeICAOCountryType |
| horizontalAlarmLimit | (ARINC) Horizontal Alert Limit (HAL) is the radius of a circle in the horizontal plane (the local plane tangent to the WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated horizontal position with the required probability for a particular navigation mode assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. | (decimal) ValAlarmLimitType |
| lengthOffset | Distance from the stop end of the runway to the Flight Path Alignment Point | (decimal) ValDistanceType |
| operationType | Operation Type. A number from 0 to 15 that indicates the type of the final approach segment. | (unsignedint) NoSequenceType |
| referencePathDataSelector | Reference Path Data Selector (RPDS). A number (0-48) that enables automatic tuning of a procedure by LAAS avionics. | (unsignedint) NoSequenceType |
| referencePathIdentifier | Reference Path Identifier. A four-character identifier that is used to confirm selection of the correct approach procedure. | (string) CodeReferencePathIdentifierType |
| routeIndicator | Route Indicator. A single alpha character (A through Z or blank, omitting I and O) used to differentiate between multiple final approach segments to the same runway or heliport. | (string) CodeRouteIndicatorType |
| serviceProviderSBAS | SBAS Service Provider Identifier. A number from 0 to 15 that associates the approach procedure to a particular satellite based approach system service provider. | (unsignedint) NoSequenceType |
| thresholdCourseWidth | The width of the lateral course at the Landing Threshold Point (LTP). This width, in conjunction with the location of the Flight Path Alignment Point (FPAP) defines the sensitivity of the lateral deviations throughout the approach. | (decimal) ValDistanceType |
| verticalAlarmLimit | (ARINC) Vertical Alert Limit (VAL) is half the length of a segment on the vertical axis (perpendicular to the horizontal plane of WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated vertical position with a probability of 1-E-7 per approach, assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. | (decimal) ValAlarmLimitType |
Details
FASDataBlock
FASDataBlock
Final Approach Segment Data Block. The additional information about the Precision Final Segment. Most attributes describe the LPV path point record required for WAAS procedures.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock | The additional information about the Precision Final Segment. Most attributes describe the LPV path point record required for WAAS procedures. |
CRCRemainder
FASDataBlock.CRCRemainder
Hexadecimal representation of the 32-bit CRC used to check the integrity of the FAS data block.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.remainderCyclicRedundancyCheck | Hexadecimal representation of the 32-bit CRC used to check the integrity of the FAS data block. |
annotation
FASDataBlock.annotation
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| Entity.annotation | A general text note for the entity or for one of its properties. |
approachPerformanceDesignator
FASDataBlock.approachPerformanceDesignator
Approach Performance Designator. A number from 0 to 7 that identifies the type of approach.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.approachPerformanceDesignator | Approach Performance Designator. A number from 0 to 7 that identifies the type of approach. |
codeICAO
FASDataBlock.codeICAO
The first two designators of the ICAO location identifier, as identified in ICAO Doc 7910.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.codeICAO | The first two designators of the ICAO location identifier, as identified in ICAO Doc 7910. |
horizontalAlarmLimit
FASDataBlock.horizontalAlarmLimit
(ARINC) Horizontal Alert Limit (HAL) is the radius of a circle in the horizontal plane (the local plane tangent to the WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated horizontal position with the required probability for a particular navigation mode assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.horizontalAlarmLimit | The radius of a circle in the horizontal plane (the local plane tangent to the WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated horizontal position with the required probability for a particular navigation mode assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. |
lengthOffset
FASDataBlock.lengthOffset
Distance from the stop end of the runway to the Flight Path Alignment Point
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.lengthOffset | Distance from the stop end of the runway to the Flight Path Alignment Point |
operationType
FASDataBlock.operationType
Operation Type. A number from 0 to 15 that indicates the type of the final approach segment.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.operationType | Operation Type. A number from 0 to 15 that indicates the type of the final approach segment. |
referencePathDataSelector
FASDataBlock.referencePathDataSelector
Reference Path Data Selector (RPDS). A number (0-48) that enables automatic tuning of a procedure by LAAS avionics.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.referencePathDataSelector | Reference Path Data Selector (RPDS). A number (0-48) that enables automatic tuning of a procedure by LAAS avionics. |
referencePathIdentifier
FASDataBlock.referencePathIdentifier
Reference Path Identifier. A four-character identifier that is used to confirm selection of the correct approach procedure.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.referencePathIdentifier | Reference Path Identifier. A four-character identifier that is used to confirm selection of the correct approach procedure. |
routeIndicator
FASDataBlock.routeIndicator
Route Indicator. A single alpha character (A through Z or blank, omitting I and O) used to differentiate between multiple final approach segments to the same runway or heliport.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.routeIndicator | Route Indicator. A single alpha character (A through Z or blank, omitting I and O) used to differentiate between multiple final approach segments to the same runway or heliport. |
serviceProviderSBAS
FASDataBlock.serviceProviderSBAS
SBAS Service Provider Identifier. A number from 0 to 15 that associates the approach procedure to a particular satellite based approach system service provider.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.satelliteBasedAugmentationSystemServiceProvider | SBAS Service Provider Identifier. A number from 0 to 15 that associates the approach procedure to a particular satellite based approach system service provider. |
thresholdCourseWidth
FASDataBlock.thresholdCourseWidth
The width of the lateral course at the Landing Threshold Point (LTP). This width, in conjunction with the location of the Flight Path Alignment Point (FPAP) defines the sensitivity of the lateral deviations throughout the approach.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.thresholdCourseWidth | The width of the lateral course at the Landing Threshold Point (LTP). This width, in conjunction with the location of the Flight Path Alignment Point (FPAP) defines the sensitivity of the lateral deviations throughout the approach. |
verticalAlarmLimit
FASDataBlock.verticalAlarmLimit
(ARINC) Vertical Alert Limit (VAL) is half the length of a segment on the vertical axis (perpendicular to the horizontal plane of WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated vertical position with a probability of 1-E-7 per approach, assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour.
Semantic Correspondence
| AIRM Concept | Definition |
|---|---|
| FinalApproachSegmentDataBlock.verticalAlarmLimit | Half the length of a segment on the vertical axis (perpendicular to the horizontal plane of WGS-84 ellipsoid), with its centre being at the true position, which describes the region which is required to contain the indicated vertical position with a probability of 1-E-7 per approach, assuming the probability of a GPS satellite integrity failure being included in the position solution is less than or equal to E-4 per hour. |