NOAA S-57 chart cell
Islands of the Pacific Ocean - Saipan Harbor to Bahia Laolao, CNMI
US4GU1NH
- Usage band
- Approach · code 4
- Current edition
- 2.0
- Features
- 651
- S-57 layers
- 45
- Published
- Apr 21, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 15.30000° N
- South
- 15.00000° N
- West
- 145.50000° E
- East
- 145.80000° E
- Center
- 15.15000° N, 145.65000° E
- Bounds area
- 313 sq nm
- Feature density
- 2.0788 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 14.5
- Smallest layer
- 1
- Largest layer
- 143
- Area sq km
- 1,074
- Features per sq km
- 0.60608
- DEPCNT Depth contour 143
- DEPARE Depth area 126
- SBDARE Seabed area 84
- M_QUAL Data quality 44
- COALNE Coastline 40
- LNDRGN Land region 24
- SWPARE 19
- UWTROC Underwater rock 19
- LNDARE Land area 15
- LIGHTS Light 14
- LNDELV 14
- SLCONS Shoreline construction 13
- BUAARE 11
- LNDMRK 10
- OBSTRN Obstruction 9
- BUISGL 8
- SOUNDG Sounding 8
- SEAARE Sea area 6
- TS_FEB 5
- BCNSPP Special purpose beacon 3
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/US4GU1NH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4GU1NH/2.0/US4GU1NH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4GU1NH/2.0/US4GU1NH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4GU1NH/2.0/US4GU1NH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4GU1NH/2.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 2.0 | Apr 21, 2026 | metadata.json |