NOAA S-57 chart cell
Alaska
US4AK5JO
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,236
- S-57 layers
- 33
- Published
- Jan 7, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 56.10000° N
- South
- 55.80000° N
- West
- 132.00000° W
- East
- 131.40000° W
- Center
- 55.95000° N, 131.70000° W
- Bounds area
- 363 sq nm
- Feature density
- 6.1544 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 67.8
- Smallest layer
- 1
- Largest layer
- 403
- Area sq km
- 1,246
- Features per sq km
- 1.79434
- COALNE Coastline 403
- DEPCNT Depth contour 403
- DEPARE Depth area 372
- RIVERS River 239
- SBDARE Seabed area 163
- LNDELV 149
- UWTROC Underwater rock 146
- LNDARE Land area 133
- SLOTOP 63
- M_QUAL Data quality 52
- SEAARE Sea area 22
- LNDRGN Land region 17
- BUISGL 16
- SLCONS Shoreline construction 15
- SOUNDG Sounding 8
- MAGVAR Magnetic variation 4
- MORFAC 4
- SLOGRD 4
- CBLOHD 3
- VEGATN 3
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/US4AK5JO.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK5JO/1.0/US4AK5JO.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK5JO/1.0/US4AK5JO.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK5JO/1.0/US4AK5JO.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK5JO/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 7, 2025 | metadata.json |