NOAA S-57 chart cell
North Atlantic Ocean
US4NC1AE
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 43
- S-57 layers
- 16
- Published
- Apr 7, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 33.90000° N
- South
- 33.60000° N
- West
- 77.70000° W
- East
- 77.40000° W
- Center
- 33.75000° N, 77.55000° W
- Bounds area
- 270 sq nm
- Feature density
- 0.1594 / sq nm
Chart Statistics
16 largest layers shown
- Average features per layer
- 2.7
- Smallest layer
- 1
- Largest layer
- 17
- Area sq km
- 925
- Features per sq km
- 0.04647
- SBDARE Seabed area 17
- M_QUAL Data quality 4
- SOUNDG Sounding 4
- DEPARE Depth area 3
- DEPCNT Depth contour 2
- MAGVAR Magnetic variation 2
- WRECKS Wreck 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- RESARE 1
- SEAARE Sea area 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/US4NC1AE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4NC1AE/1.0/US4NC1AE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4NC1AE/1.0/US4NC1AE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4NC1AE/1.0/US4NC1AE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4NC1AE/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 7, 2026 | metadata.json |