NOAA S-57 chart cell
Alaska
US4AK3JP
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,150
- S-57 layers
- 30
- Published
- Nov 29, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.60000° N
- South
- 54.30000° N
- West
- 162.60000° W
- East
- 162.00000° W
- Center
- 54.45000° N, 162.30000° W
- Bounds area
- 377 sq nm
- Feature density
- 5.6989 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 71.7
- Smallest layer
- 1
- Largest layer
- 514
- Area sq km
- 1,294
- Features per sq km
- 1.66154
- DEPCNT Depth contour 514
- DEPARE Depth area 397
- COALNE Coastline 352
- LNDARE Land area 270
- UWTROC Underwater rock 210
- SBDARE Seabed area 154
- WEDKLP 138
- OBSTRN Obstruction 20
- LNDELV 18
- RIVERS River 14
- SEAARE Sea area 11
- M_QUAL Data quality 9
- SOUNDG Sounding 6
- LAKARE 5
- LNDRGN Land region 5
- WATTUR 5
- SLOTOP 4
- MAGVAR Magnetic variation 3
- BUISGL 2
- CONZNE 2
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/US4AK3JP.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3JP/1.0/US4AK3JP.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3JP/1.0/US4AK3JP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3JP/1.0/US4AK3JP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3JP/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 29, 2023 | metadata.json |