NOAA S-57 chart cell
Long Island Sound – South of Southport Harbor
US5CT1BF
- Usage band
- Harbor · code 5
- Current edition
- 2.0
- Features
- 140
- S-57 layers
- 17
- Published
- Aug 1, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.10000° N
- South
- 41.02500° N
- West
- 73.35000° W
- East
- 73.27500° W
- Center
- 41.06250° N, 73.31250° W
- Bounds area
- 15 sq nm
- Feature density
- 9.1569 / sq nm
Chart Statistics
17 largest layers shown
- Average features per layer
- 8.2
- Smallest layer
- 1
- Largest layer
- 35
- Area sq km
- 52
- Features per sq km
- 2.66973
- SBDARE Seabed area 35
- DEPARE Depth area 26
- DEPCNT Depth contour 24
- M_QUAL Data quality 12
- SOUNDG Sounding 11
- WRECKS Wreck 8
- UWTROC Underwater rock 6
- OBSTRN Obstruction 4
- BOYLAT Lateral buoy 3
- LIGHTS Light 2
- RESARE 2
- SEAARE Sea area 2
- FOGSIG 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
Nearby Chart Cells
Harbor 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/US5CT1BF.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5CT1BF/2.0/US5CT1BF.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1BF/2.0/US5CT1BF.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1BF/2.0/US5CT1BF.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1BF/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Aug 1, 2025 | metadata.json |