| Parameter | Type | Description | Values | Messages |
|---|---|---|---|---|
| valid | string | Validity of the result | VALID, INVALID, UNSUPPORTED, INCOMPLETE | all |
| aisType | number | The message number of the AIS Message | 1-5, 18, 19, 21, or 24 | all |
| channel | string | The VHF channel the message was Transmitted on | A,B or empty | all |
| repeatInd | number | Wether or not / how this message should be rebroadcasted | 0,1,2,3 | all |
| mmsi | number | Maritime Mobile Service Identity | 9 digit number | all |
| midCountry | string | Country extracted from the MMSI | The Country or empty | all |
| midCountryIso | string | ISO String of the Country extracted from the MMSI | The ISO String or empty | all |
| mmsiType | string | The Type of Target extracted from the MMSI | Target type or empty | all |
| class | string | The Class of AIS Device | A, B empty | all |
| latitude | deg | The latitude of the Sender | -90-90 | 1, 2, 3, 4, 18, 19 |
| longitude | deg | The longitude of the Sender | -180-180 | 1, 2, 3, 4, 18, 19 |
| posAccuracy | boolean | Position Accuracy, true = DGPS Quality < 10m, false >10m | true,false | 1, 2, 3, 4, 18, 19 |
| navStatus | index | Navigational Status of AIS Target | 0-15 | 1,2,3 |
| navStatusStr | string | A String associated with Nav Status | - | 1,2,3 |
| utcYear | year | Message Type 4 Base Station Time Reference | 1-999, 0=N/A | 4 |
| utcMonth | month | Message Type 4 Base Station Time Reference | 1-12, 0=N/A | 4 |
| utcDay | day | Message Type 4 Base Station Time Reference | 1-31, 0=N/A | 4 |
| utcHour | h | Message Type 4 Base Station Time Reference | 0-23, 24 = N/A | 4 |
| utcMinute | min | Message Type 4 Base Station Time Reference | 0-59, 60=N/A | 4 |
| utcSecond | s | Message Type 4 Base Station Time Reference | 0-59, 60=N/A | 4 |
| epfd | index | EPFD Fix Type | 0-8, 0=N/A | 4,5,19 |
| epfdStr | string | A String associated with EPFD index | - | 4,5,19 |
| callSign | string | Callsign of the AIS Target | 7 Characters | 5,24 |
| name | string | AIS Targets Name | 20 Characters | 5,24 |
| aisVer | number | 0=ITU1371, 1-3=future editions | 0-3 | 5 |
| imo | number | IMO Registration Number | 9 Digits | 5 |
| shipType | index | Ship Type & Cargo | 5,19.24 | |
| shipTypeStr | string | A String associated with Ship Type & Cargo | - | 5, 19, 24 |
| dimToBow | m | Distance of the GPS Receiverfrom the Bow | 1-510 | 5, 19, 21, 24 |
| dimToBowStatus | string | Status of DimToBow, HUGE > 511 | VALID, NA, HUGE | 5, 19, 21, 24 |
| dimToStern | m | Distance of the GPS Receiverfrom the Stern | 1-510 | 5, 19, 21, 24 |
| dimToSternStatus | string | Status of DimToStern, HUGE > 511 | VALID, NA, HUGE | 5, 19, 21, 24 |
| dimToStbrd | m | Distance of the GPS Receiverfrom the Stardboard Side | 1-62 | 5, 19, 21, 24 |
| dimToStbrdStatus | string | Status of DimToStbrd, HUGE > 63 | VALID, NA, HUGE | 5, 19, 21, 24 |
| dimToPort | m | Distance of the GPS Receiverfrom the Port Side | 1-62 | 5, 19, 21, 24 |
| dimToPortStatus | string | Status of DimToPort, HUGE > 63 | VALID, NA, HUGE | 5, 19, 21, 24 |
| etaMonth | month | UTC Month of ETA at Destination | 1-12 0=N/A | 5 |
| etaDay | day | UTC day of ETA at Destination | 1-3 10=N/A | 5 |
| etaHour | h | UTC Hour of ETA at Destination | 0-59 60=N/A | 5 |
| etaMinute | min | UTC Minute of ETA at Destination | 0=N/A 0-59 | 5 |
| destination | string | Destination of Vessel | - | 5 |
| draught | m | Draught of Target | - | 5 |
| heading | deg | True Heading of Target | 0-359 | 1, 2, 3, 18, 19 |
| sog | kn | Speed over Ground | 0-102.1 | 1, 2, 3, 18, 19 |
| sogStatus | string | Status of Speed over Ground, if status is VALID, then sog contains the Speed | VALID,HIGH,NA | 1, 2, 3, 18, 19 |
| cog | deg | Course over Ground | 0-359 | 1, 2, 3, 18, 19 |
| utcTsSec | s | Seconds of UTC Time | 0-59 | 1, 2, 3, 18, 19 |
| utcTsStatus | string | Status of the utcTsSec Paramerter | NA, MANUAL, ESTIMATED, INOPERATIVE or INVALID | 1, 2, 3, 18, 19 |
| vendorId | string | Vendor Name of the AIS equipment | - | 24 |
| mothershipMmsi | string | MMSI of Mothership | 9 Digit Number | 24 |
| rot | deg/min | Rate of Turn | -126-126 | 1, 2, 3 |
| rotStatus | string | Status of Rate of Turn | 'NONE, RIGHT, LEFT, NA | 1,2,3 |
| offPosInd | string | Off Position indicator for Aid to Navigation | IN_POS, OFF_POS, NA | 21 |
| aidType | index | Type of the Aid to Navigation | 0-31 | 21 |
| aidTypeStr | string | A String associated with the aidType | - | 21 |
| nameExt | string | Name Extension for Aid to Navigation | - | 21 |
| text | string | Safety related text | - | 14 |
| dac | number | Designated area code | - | 8 |
| fid | number | Function identifier | - | 8 |
| data | string | Application specific data | - | 8 |
This repository was archived by the owner on Jan 21, 2026. It is now read-only.