NOAA S-57 chart cell
Alaska
US4AK3YP
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 123
- S-57 layers
- 18
- Published
- Jun 3, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.10000° N
- South
- 58.80000° N
- West
- 162.60000° W
- East
- 162.00000° W
- Center
- 58.95000° N, 162.30000° W
- Bounds area
- 335 sq nm
- Feature density
- 0.3675 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 6.8
- Smallest layer
- 1
- Largest layer
- 45
- Area sq km
- 1,148
- Features per sq km
- 0.10715
- SBDARE Seabed area 45
- DEPCNT Depth contour 25
- DEPARE Depth area 24
- M_QUAL Data quality 7
- SOUNDG Sounding 5
- CBLSUB 2
- MAGVAR Magnetic variation 2
- PILBOP 2
- SEAARE Sea area 2
- ADMARE 1
- CONZNE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- SNDWAV 1
- TESARE 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/US4AK3YP.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4AK3YP/1.1/US4AK3YP.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4AK3YP/1.1/US4AK3YP.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK3YP/1.1/US4AK3YP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK3YP/1.1/US4AK3YP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK3YP/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Jun 3, 2025 | metadata.json |