NOAA S-57 chart cell
Sachem Head
US5CT1DN
- Usage band
- Harbor · code 5
- Current edition
- 5.0
- Features
- 572
- 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
- 72.75000° W
- East
- 72.67500° W
- Center
- 41.21250° N, 72.71250° W
- Bounds area
- 15 sq nm
- Feature density
- 37.4982 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 19.7
- Smallest layer
- 1
- Largest layer
- 120
- Area sq km
- 52
- Features per sq km
- 10.93271
- DEPCNT Depth contour 120
- DEPARE Depth area 113
- UWTROC Underwater rock 110
- SBDARE Seabed area 68
- LNDARE Land area 37
- COALNE Coastline 26
- OBSTRN Obstruction 18
- SLCONS Shoreline construction 17
- M_QUAL Data quality 8
- PONTON 8
- SOUNDG Sounding 8
- SEAARE Sea area 7
- LNDRGN Land region 6
- BOYLAT Lateral buoy 5
- BRIDGE 2
- LIGHTS Light 2
- LNDELV 2
- MAGVAR Magnetic variation 2
- RESARE 2
- RIVERS River 2
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/US5CT1DN.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5CT1DN/5.0/US5CT1DN.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5CT1DN/5.0/US5CT1DN.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5CT1DN/5.0/US5CT1DN.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5CT1DN/5.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 5.0 | Jan 14, 2026 | metadata.json |