NOAA S-57 chart cell
North Pacific Ocean and Isanotski Strait
US4AK3KN
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,180
- S-57 layers
- 38
- Published
- Aug 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.90000° N
- South
- 54.60000° N
- West
- 163.80000° W
- East
- 163.20000° W
- Center
- 54.75000° N, 163.50000° W
- Bounds area
- 374 sq nm
- Feature density
- 3.1509 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 31.1
- Smallest layer
- 1
- Largest layer
- 182
- Area sq km
- 1,284
- Features per sq km
- 0.91866
- LNDELV 182
- UWTROC Underwater rock 174
- LNDARE Land area 139
- SBDARE Seabed area 110
- DEPARE Depth area 100
- DEPCNT Depth contour 98
- WEDKLP 80
- COALNE Coastline 77
- OBSTRN Obstruction 45
- RIVERS River 26
- SLOTOP 19
- LNDRGN Land region 13
- ICEARE 12
- SEAARE Sea area 10
- BUISGL 9
- SLOGRD 9
- LAKARE 8
- LIGHTS Light 8
- M_QUAL Data quality 8
- SOUNDG Sounding 8
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4AK3KN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3KN/1.0/US4AK3KN.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3KN/1.0/US4AK3KN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3KN/1.0/US4AK3KN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3KN/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 29, 2025 | metadata.json |