NOAA S-57 chart cell
Alaska
US4AK6AS
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 134
- S-57 layers
- 15
- Published
- Jan 22, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.70000° N
- South
- 59.40000° N
- West
- 163.20000° W
- East
- 162.60000° W
- Center
- 59.55000° N, 162.90000° W
- Bounds area
- 329 sq nm
- Feature density
- 0.4075 / sq nm
Chart Statistics
15 largest layers shown
- Average features per layer
- 8.9
- Smallest layer
- 1
- Largest layer
- 43
- Area sq km
- 1,128
- Features per sq km
- 0.11881
- DEPARE Depth area 43
- DEPCNT Depth contour 39
- M_QUAL Data quality 16
- UNSARE 9
- SNDWAV 8
- MAGVAR Magnetic variation 4
- SOUNDG Sounding 4
- SBDARE Seabed area 3
- M_NPUB 2
- ADMARE 1
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 1
- SEAARE Sea area 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/US4AK6AS.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK6AS/1.0/US4AK6AS.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK6AS/1.0/US4AK6AS.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK6AS/1.0/US4AK6AS.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK6AS/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 22, 2024 | metadata.json |