NOAA S-57 chart cell
Saint Helena Sound - North Atlantic Ocean
US3SC1CA
- Usage band
- Coastal · code 3
- Current edition
- 1.0
- Features
- 199
- S-57 layers
- 18
- Published
- Jan 14, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 33.60000° N
- South
- 32.40000° N
- West
- 81.60000° W
- East
- 80.40000° W
- Center
- 33.00000° N, 81.00000° W
- Bounds area
- 4,353 sq nm
- Feature density
- 0.0457 / sq nm
Chart Statistics
18 largest layers shown
- Average features per layer
- 11.1
- Smallest layer
- 1
- Largest layer
- 70
- Area sq km
- 14,932
- Features per sq km
- 0.01333
- RIVERS River 70
- COALNE Coastline 51
- LNDARE Land area 20
- SEAARE Sea area 12
- CTNARE Caution area 7
- DEPARE Depth area 7
- M_QUAL Data quality 7
- SLCONS Shoreline construction 5
- BRIDGE 4
- CBLOHD 3
- LNDRGN Land region 3
- BUAARE 2
- MAGVAR Magnetic variation 2
- RESARE 2
- LNDMRK 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
Nearby Chart Cells
Coastal 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/US3SC1CA.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3SC1CA/1.0/US3SC1CA.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3SC1CA/1.0/US3SC1CA.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3SC1CA/1.0/US3SC1CA.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3SC1CA/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jan 14, 2026 | metadata.json |