NOAA S-57 chart cell
South Pacific Ocean - Tau Island, American Samoa
US4AS1LL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 85
- S-57 layers
- 20
- Published
- Dec 4, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 14.10000° S
- South
- 14.40000° S
- West
- 169.50000° W
- East
- 169.20000° W
- Center
- 14.25000° S, 169.35000° W
- Bounds area
- 314 sq nm
- Feature density
- 0.2703 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4.3
- Smallest layer
- 1
- Largest layer
- 14
- Area sq km
- 1,079
- Features per sq km
- 0.07881
- DEPARE Depth area 14
- DEPCNT Depth contour 13
- LNDRGN Land region 12
- SBDARE Seabed area 12
- RIVERS River 9
- M_QUAL Data quality 6
- SOUNDG Sounding 5
- M_NPUB 2
- ADMARE 1
- BUAARE 1
- COALNE Coastline 1
- CONZNE 1
- COSARE 1
- EXEZNE 1
- LNDARE Land area 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- RESARE 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/US4AS1LL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AS1LL/1.0/US4AS1LL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AS1LL/1.0/US4AS1LL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AS1LL/1.0/US4AS1LL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AS1LL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 4, 2025 | metadata.json |