Search and rescue position report
| Name | NumberOfBits | ArrayLength | Type | Units | Description |
|---|---|---|---|---|---|
| MessageID | 6 | uint | AIS message number. Must be 9 | ||
| RepeatIndicator | 2 | uint | Indicated how many times a message has been repeated 0: default 3: do not repeat any more |
||
| UserID | 30 | uint | Unique ship identification number (MMSI) | ||
| Altitude | 12 | uint | meters | Altitude (GNSS) 4095: 4095 or higher |
|
| SOG | 10 | udecimal | knots | Speed over ground 102.2: 102.2 knots or higher |
|
| PositionAccuracy | 1 | uint | Accuracy of positioning fixes 0: low (greater than 10 m) 1: high (less than 10 m) |
||
| Position_longitude | 28 | decimal | degrees | Location of the vessel East West location | |
| Position_latitude | 27 | decimal | degrees | Location of the vessel North South location | |
| COG | 12 | udecimal | degrees | Course over ground | |
| TimeStamp | 6 | uint | seconds | UTC second when the report was generated 60: not available/default 61: manual input 62: dead reckoning 63: inoperative |
|
| Reserved | 8 | uint | Reserved for regional applications. Should be set to zero. | ||
| DTE | 1 | bool | Dtta terminal ready | ||
| Spare | 5 | uint | Not used. Should be set to zero. | ||
| RAIM | 1 | bool | Receiver autonomous integrity monitoring flag False: not in use True: in use |
||
| state_syncstate | 2 | uint | Communications State - SOTDMA Sycronization state 0: UTC direct 1: UTC indirect 2: synchronized to a base station 3: synchronized to another station |
||
| state_slottimeout | 3 | uint | frames | Communications State - SOTDMA Frames remaining until a new slot is selected 0: Last frame in this slot 1: 1 frames left 2: 2 frames left 3: 3 frames left 4: 4 frames left 5: 5 frames left 6: 6 frames left 7: 7 frames left |
|
| state_slotoffset | 14 | uint | Communications State - SOTDMA In what slot will the next transmission occur. BROKEN |