NOAA S-57 chart cell

North Pacific Ocean - North of Maro Reef, HI

US4HI3IP

Usage band
Approach · code 4
Current edition
1.0
Features
78
S-57 layers
22
Published
Aug 15, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
25.80000° N
South
25.50000° N
West
170.70000° W
East
170.40000° W
Center
25.65000° N, 170.55000° W
Bounds area
292 sq nm
Feature density
0.2667 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
3.5
Smallest layer
1
Largest layer
20
Area sq km
1,003
Features per sq km
0.07776
  1. DEPCNT Depth contour 20
  2. DEPARE Depth area 18
  3. M_QUAL Data quality 6
  4. RESARE 4
  5. OBSTRN Obstruction 3
  6. SBDARE Seabed area 3
  7. SEAARE Sea area 3
  8. UWTROC Underwater rock 3
  9. M_NPUB 2
  10. MAGVAR Magnetic variation 2
  11. SOUNDG Sounding 2
  12. WATTUR 2
  13. ADMARE 1
  14. COALNE Coastline 1
  15. CONZNE 1
  16. CTNARE Caution area 1
  17. EXEZNE 1
  18. LNDARE Land area 1
  19. M_COVR Coverage 1
  20. M_NSYS 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.

Editions

Edition Published Metadata
1.0 Aug 15, 2025 metadata.json