NOAA S-57 chart cell
North Pacific Ocean - East of Maro Reef, HI
US4HI3HQ
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 34
- S-57 layers
- 12
- Published
- Aug 15, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 25.50000° N
- South
- 25.20000° N
- West
- 170.40000° W
- East
- 170.10000° W
- Center
- 25.35000° N, 170.25000° W
- Bounds area
- 293 sq nm
- Feature density
- 0.116 / sq nm
Chart Statistics
12 largest layers shown
- Average features per layer
- 2.8
- Smallest layer
- 1
- Largest layer
- 9
- Area sq km
- 1,006
- Features per sq km
- 0.03381
- DEPCNT Depth contour 9
- DEPARE Depth area 6
- M_QUAL Data quality 5
- RESARE 4
- M_NPUB 2
- SOUNDG Sounding 2
- CONZNE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SEAARE Sea area 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/US4HI3HQ.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4HI3HQ/1.0/US4HI3HQ.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4HI3HQ/1.0/US4HI3HQ.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4HI3HQ/1.0/US4HI3HQ.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4HI3HQ/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Aug 15, 2025 | metadata.json |