NOAA S-57 chart cell
North Pacific Ocean and Sanak Island
US4AK3JO
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 3,252
- S-57 layers
- 26
- Published
- Aug 29, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.60000° N
- South
- 54.30000° N
- West
- 163.20000° W
- East
- 162.60000° W
- Center
- 54.45000° N, 162.90000° W
- Bounds area
- 377 sq nm
- Feature density
- 8.6199 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 125.1
- Smallest layer
- 1
- Largest layer
- 674
- Area sq km
- 1,294
- Features per sq km
- 2.51317
- LNDARE Land area 674
- COALNE Coastline 622
- DEPCNT Depth contour 507
- DEPARE Depth area 440
- UWTROC Underwater rock 432
- SBDARE Seabed area 214
- WEDKLP 158
- OBSTRN Obstruction 67
- RIVERS River 57
- LNDELV 23
- SEAARE Sea area 15
- LAKARE 9
- SOUNDG Sounding 8
- LNDRGN Land region 6
- M_QUAL Data quality 4
- SLOTOP 4
- MAGVAR Magnetic variation 3
- ADMARE 1
- BUAARE 1
- BUISGL 1
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/US4AK3JO.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3JO/1.0/US4AK3JO.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3JO/1.0/US4AK3JO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3JO/1.0/US4AK3JO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3JO/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 29, 2025 | metadata.json |