NOAA S-57 chart cell
Long Island Sound- Branford River
US5CT1EM
- Usage band
- Harbor · code 5
- Current edition
- 4.1
- Features
- 1,466
- S-57 layers
- 42
- Published
- Feb 2, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.32500° N
- South
- 41.25000° N
- West
- 72.82500° W
- East
- 72.75000° W
- Center
- 41.28750° N, 72.78750° W
- Bounds area
- 15 sq nm
- Feature density
- 96.2158 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 34.9
- Smallest layer
- 1
- Largest layer
- 253
- Area sq km
- 52
- Features per sq km
- 28.05204
- PONTON 253
- DEPCNT Depth contour 200
- DEPARE Depth area 179
- UWTROC Underwater rock 158
- SLCONS Shoreline construction 139
- COALNE Coastline 119
- SBDARE Seabed area 83
- LNDARE Land area 71
- LNDRGN Land region 66
- M_QUAL Data quality 28
- OBSTRN Obstruction 22
- RIVERS River 18
- MORFAC 13
- BRIDGE 10
- RESARE 10
- BOYLAT Lateral buoy 9
- SOUNDG Sounding 9
- DRGARE 8
- SEAARE Sea area 8
- BUISGL 7
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/US5CT1EM.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/harbor/US5CT1EM/4.1/US5CT1EM.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/harbor/US5CT1EM/4.1/US5CT1EM.001
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1EM/4.1/US5CT1EM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1EM/4.1/US5CT1EM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1EM/4.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 4.1 | Feb 2, 2026 | metadata.json |