NOAA S-57 chart cell

North Pacific Ocean - Johnston Atoll and Approaches

US3UM1RI

Usage band
Coastal · code 3
Current edition
1.0
Features
82
S-57 layers
23
Published
Jun 10, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

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North
16.80000° N
South
15.60000° N
West
170.40000° W
East
169.20000° W
Center
16.20000° N, 169.80000° W
Bounds area
4,985 sq nm
Feature density
0.0165 / sq nm

Chart Statistics

20 largest layers shown

Average features per layer
3.6
Smallest layer
1
Largest layer
12
Area sq km
17,097
Features per sq km
0.0048
  1. OBSTRN Obstruction 12
  2. UWTROC Underwater rock 11
  3. DEPARE Depth area 10
  4. DEPCNT Depth contour 10
  5. LNDARE Land area 5
  6. SBDARE Seabed area 4
  7. SLCONS Shoreline construction 4
  8. M_QUAL Data quality 3
  9. RESARE 3
  10. SEAARE Sea area 3
  11. SOUNDG Sounding 3
  12. COALNE Coastline 2
  13. M_NPUB 2
  14. ADMARE 1
  15. CBLSUB 1
  16. CONZNE 1
  17. COSARE 1
  18. DMPGRD 1
  19. EXEZNE 1
  20. M_COVR Coverage 1

Nearby Chart Cells

Coastal usage band

  1. Gardner Pinnacles and approaches;Gardner Pinnacles US3SP40M - about 41 nm away
  2. North Pacific Ocean - Southeastern Approaches to Johnston Atoll US3UM1RJ - about 69 nm away
  3. North Pacific Ocean - Northern Approaches to Johnston Atoll US3UM1SI - about 72 nm away
  4. North Pacific Ocean - Karin Ridge and Approaches to Johnston Atoll US3UM1SJ - about 100 nm away
  5. North Pacific Ocean - South of Ni'ihau, HI US3HI1EQ - about 617 nm away
  6. North Pacific Ocean - Kaua'i, HI to Kaua'i Channel US3HI1FQ - about 652 nm away

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 Jun 10, 2026 metadata.json