NOAA S-57 chart cell

Shemya Island

US5A2KHN

Usage band
Harbor · code 5
Current edition
1.0
Features
88
S-57 layers
18
Published
Sep 23, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
52.80000° N
South
52.72500° N
West
174.15000° E
East
174.30000° E
Center
52.76250° N, 174.22500° E
Bounds area
25 sq nm
Feature density
3.5859 / sq nm

Chart Statistics

18 largest layers shown

Average features per layer
4.9
Smallest layer
1
Largest layer
27
Area sq km
84
Features per sq km
1.04548
  1. DEPARE Depth area 27
  2. DEPCNT Depth contour 26
  3. SBDARE Seabed area 6
  4. COALNE Coastline 4
  5. LNDARE Land area 4
  6. WEDKLP 3
  7. LNDELV 2
  8. M_NPUB 2
  9. M_QUAL Data quality 2
  10. MAGVAR Magnetic variation 2
  11. SOUNDG Sounding 2
  12. UWTROC Underwater rock 2
  13. ADMARE 1
  14. M_COVR Coverage 1
  15. M_NSYS 1
  16. OBSTRN Obstruction 1
  17. RESARE 1
  18. SEAARE Sea area 1

Nearby Chart Cells

Harbor 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 Sep 23, 2025 metadata.json