NOAA S-57 chart cell
Approaches to Bahía de San Juan - North Atlantic Ocean
US4PR1DI
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 484
- S-57 layers
- 43
- Published
- Dec 17, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 18.60000° N
- South
- 18.30000° N
- West
- 66.30000° W
- East
- 66.00000° W
- Center
- 18.45000° N, 66.15000° W
- Bounds area
- 308 sq nm
- Feature density
- 1.5726 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 11.3
- Smallest layer
- 1
- Largest layer
- 68
- Area sq km
- 1,056
- Features per sq km
- 0.45851
- SLCONS Shoreline construction 68
- COALNE Coastline 47
- UWTROC Underwater rock 44
- CBLSUB 36
- DEPARE Depth area 26
- DEPCNT Depth contour 26
- WATTUR 26
- LNDARE Land area 22
- RIVERS River 21
- OBSTRN Obstruction 20
- SBDARE Seabed area 17
- BUAARE 14
- VEGATN 13
- LNDRGN Land region 12
- LIGHTS Light 11
- SOUNDG Sounding 11
- LNDMRK 9
- M_QUAL Data quality 8
- BOYSPP Special purpose buoy 6
- BRIDGE 4
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/US4PR1DI.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4PR1DI/1.0/US4PR1DI.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4PR1DI/1.0/US4PR1DI.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4PR1DI/1.0/US4PR1DI.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4PR1DI/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Dec 17, 2025 | metadata.json |