NOAA S-57 chart cell
Long Island Sound- Branford Reef
US5CT1DM
- Usage band
- Harbor · code 5
- Current edition
- 5.0
- Features
- 621
- S-57 layers
- 29
- Published
- Jan 14, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 41.25000° N
- South
- 41.17500° N
- West
- 72.82500° W
- East
- 72.75000° W
- Center
- 41.21250° N, 72.78750° W
- Bounds area
- 15 sq nm
- Feature density
- 40.7104 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 21.4
- Smallest layer
- 1
- Largest layer
- 150
- Area sq km
- 52
- Features per sq km
- 11.86926
- DEPCNT Depth contour 150
- DEPARE Depth area 144
- UWTROC Underwater rock 76
- SBDARE Seabed area 71
- LNDARE Land area 37
- COALNE Coastline 21
- M_QUAL Data quality 20
- LNDRGN Land region 16
- SLCONS Shoreline construction 14
- BOYLAT Lateral buoy 12
- SEAARE Sea area 12
- OBSTRN Obstruction 9
- SOUNDG Sounding 9
- PONTON 6
- CBLARE 4
- LIGHTS Light 4
- PIPARE 3
- RESARE 2
- ACHARE Anchorage area 1
- BCNSPP Special purpose beacon 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/US5CT1DM.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5CT1DM/5.0/US5CT1DM.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1DM/5.0/US5CT1DM.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1DM/5.0/US5CT1DM.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1DM/5.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 5.0 | Jan 14, 2026 | metadata.json |