NOAA S-57 chart cell

Ratz Harbor, AK

US5AK3XJ

Usage band
Harbor · code 5
Current edition
1.1
Features
236
S-57 layers
23
Published
Feb 14, 2025
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
55.95000° N
South
55.87500° N
West
132.60000° W
East
132.45000° W
Center
55.91250° N, 132.52500° W
Bounds area
23 sq nm
Feature density
10.3831 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
10.3
Smallest layer
1
Largest layer
75
Area sq km
78
Features per sq km
3.02723
  1. DEPCNT Depth contour 75
  2. DEPARE Depth area 51
  3. UWTROC Underwater rock 18
  4. LNDARE Land area 14
  5. OBSTRN Obstruction 14
  6. SBDARE Seabed area 14
  7. COALNE Coastline 10
  8. M_QUAL Data quality 9
  9. CBLARE 4
  10. SOUNDG Sounding 4
  11. CBLSUB 3
  12. MAGVAR Magnetic variation 3
  13. SWPARE 3
  14. WEDKLP 3
  15. M_NPUB 2
  16. SEAARE Sea area 2
  17. BCNSPP Special purpose beacon 1
  18. DAYMAR 1
  19. LIGHTS Light 1
  20. LNDRGN Land region 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
1.1 Feb 14, 2025 metadata.json