Defiance Point - Station #1489
Latitude / Longitude:
47.3° / -122.52°
Elevation:
25 m
Equipment Description:
RTL-AIS on Raspberry Pi
Current Status & Statistics
| Status | LOW COVERAGE |
| Availability | 85% (1812 hours online / 2133 total hours) |
| Reception distance in nautical miles | Average: 1.3 / Max: 5.2 |
| Records received in 1 hour | Distinct Vessels: 7 / Positions: 490 |
| Area Covered | 246 km2 |
Period Statistics
| Period | Availability | Reception Distance | Area Covered |
|---|---|---|---|
| 1 Month | 100% | 4 NM | 296.5 km2 |
| 2 Months | 99.5% | 4 NM | 311.2 km2 |
| 3 Months | 85% | 4 NM | 291.8 km2 |
| 6 Months | 89.1% | 4 NM | 277.5 km2 |
| 9 Months | 85.3% | 4 NM | 292.9 km2 |
Ais Message Type Statistics
| Message Type | Count |
|---|---|
| Total Ais Messages | 11.7 |
| MSG 1,2,3 - Position report - Class A | 7.3 |
| MSG 5 – Ship’s Static and Voyage related data | 0.5 |
| MSG 4 – Base Station report | 1 |
| MSG 6,8 – Binary messages | 0 |
| MSG 9 – SAR Aircraft position report | 0 |
| MSG 12, 14 – Safety related message | 0 |
| MSG 18 – Class B position report | 0.8 |
| MSG 19 – Extended Class B report | 0 |
| MSG 24 – Class B Ship’s Static data | 0.9 |
| MSG 21 – Aids-to-Navigation report | 0 |
| MSG 27 – Position report for Long-range applications | 0 |
| Other AIS Messages (AIVD) | 1.2 |
| Other Non-AIS messages | 0 |
| Errors | 0 |
| Inconsistent positions | 0 |