NOAA S-57 chart cell
North Pacific Ocean - Approaches to O'ahu, HI
US4HI1OL
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 23
- S-57 layers
- 16
- Published
- Sep 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 21.90000° N
- South
- 21.60000° N
- West
- 157.80000° W
- East
- 157.50000° W
- Center
- 21.75000° N, 157.65000° W
- Bounds area
- 301 sq nm
- Feature density
- 0.0763 / sq nm
Chart Statistics
16 largest layers shown
- Average features per layer
- 1.4
- Smallest layer
- 1
- Largest layer
- 3
- Area sq km
- 1,034
- Features per sq km
- 0.02225
- DEPARE Depth area 3
- BOYSPP Special purpose buoy 2
- DEPCNT Depth contour 2
- LIGHTS Light 2
- MAGVAR Magnetic variation 2
- SOUNDG Sounding 2
- CONZNE 1
- CTNARE Caution area 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- SEAARE Sea area 1
- TESARE 1
- WRECKS Wreck 1
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/US4HI1OL.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4HI1OL/1.0/US4HI1OL.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4HI1OL/1.0/US4HI1OL.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4HI1OL/1.0/US4HI1OL.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4HI1OL/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Sep 26, 2025 | metadata.json |