NOAA S-57 chart cell
Shelikof Strait
US4AK4IB
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 119
- S-57 layers
- 23
- Published
- Aug 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 57.60000° N
- South
- 57.30000° N
- West
- 155.40000° W
- East
- 154.80000° W
- Center
- 57.45000° N, 155.10000° W
- Bounds area
- 349 sq nm
- Feature density
- 0.3409 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 5.2
- Smallest layer
- 1
- Largest layer
- 29
- Area sq km
- 1,197
- Features per sq km
- 0.09938
- SBDARE Seabed area 29
- DEPARE Depth area 26
- DEPCNT Depth contour 25
- M_QUAL Data quality 7
- SOUNDG Sounding 5
- OBSTRN Obstruction 4
- COALNE Coastline 2
- LNDARE Land area 2
- LNDELV 2
- M_VDAT 2
- MAGVAR Magnetic variation 2
- TESARE 2
- ADMARE 1
- CBLSUB 1
- CONZNE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 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/US4AK4IB.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4IB/1.0/US4AK4IB.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4IB/1.0/US4AK4IB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4IB/1.0/US4AK4IB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4IB/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 1, 2025 | metadata.json |