NOAA S-57 chart cell
North Atlantic Ocean - Entrance to Charleston Harbor
US4SC1CP
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 976
- S-57 layers
- 46
- Published
- Nov 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 33.00000° N
- South
- 32.70000° N
- West
- 79.80000° W
- East
- 79.50000° W
- Center
- 32.85000° N, 79.65000° W
- Bounds area
- 273 sq nm
- Feature density
- 3.5809 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 21.2
- Smallest layer
- 1
- Largest layer
- 155
- Area sq km
- 935
- Features per sq km
- 1.04402
- DEPCNT Depth contour 155
- DEPARE Depth area 154
- RIVERS River 131
- COALNE Coastline 128
- LNDARE Land area 79
- LNDRGN Land region 78
- SBDARE Seabed area 47
- SEAARE Sea area 47
- M_QUAL Data quality 25
- SLCONS Shoreline construction 12
- CTNARE Caution area 10
- OBSTRN Obstruction 10
- WRECKS Wreck 10
- LIGHTS Light 9
- SOUNDG Sounding 9
- CBLOHD 7
- BOYLAT Lateral buoy 6
- LAKARE 6
- BOYSPP Special purpose buoy 4
- DRGARE 4
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/US4SC1CP.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4SC1CP/1.1/US4SC1CP.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4SC1CP/1.1/US4SC1CP.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4SC1CP/1.1/US4SC1CP.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4SC1CP/1.1/US4SC1CP.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4SC1CP/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Nov 26, 2025 | metadata.json |