NOAA S-57 chart cell
Alaska
US4AK3JQ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 87
- S-57 layers
- 14
- Published
- Nov 29, 2023
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 54.60000° N
- South
- 54.30000° N
- West
- 162.00000° W
- East
- 161.40000° W
- Center
- 54.45000° N, 161.70000° W
- Bounds area
- 377 sq nm
- Feature density
- 0.2306 / sq nm
Chart Statistics
14 largest layers shown
- Average features per layer
- 6.2
- Smallest layer
- 1
- Largest layer
- 32
- Area sq km
- 1,294
- Features per sq km
- 0.06723
- DEPARE Depth area 32
- DEPCNT Depth contour 29
- M_QUAL Data quality 6
- SOUNDG Sounding 5
- SBDARE Seabed area 4
- ADMARE 2
- SEAARE Sea area 2
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 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/US4AK3JQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK3JQ/1.0/US4AK3JQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3JQ/1.0/US4AK3JQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3JQ/1.0/US4AK3JQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3JQ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 29, 2023 | metadata.json |