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

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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
  1. DEPCNT Depth contour 143
  2. DEPARE Depth area 126
  3. SBDARE Seabed area 84
  4. M_QUAL Data quality 44
  5. COALNE Coastline 40
  6. LNDRGN Land region 24
  7. SWPARE 19
  8. UWTROC Underwater rock 19
  9. LNDARE Land area 15
  10. LIGHTS Light 14
  11. LNDELV 14
  12. SLCONS Shoreline construction 13
  13. BUAARE 11
  14. LNDMRK 10
  15. OBSTRN Obstruction 9
  16. BUISGL 8
  17. SOUNDG Sounding 8
  18. SEAARE Sea area 6
  19. TS_FEB 5
  20. 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.

Editions

Edition Published Metadata
2.0 Apr 21, 2026 metadata.json