NOAA S-57 chart cell

Plans in the Mariana Islands; Agrihan; Anatahan Island

US4SP08M

Usage band
Approach · code 4
Current edition
4.2
Features
334
S-57 layers
15
Published
Jan 22, 2026
Manifest updated
Jun 22, 2026, 2:51 PM UTC

Coverage

Loading map
North
18.85907° N
South
16.25114° N
West
145.54260° E
East
145.78686° E
Center
17.55511° N, 145.66473° E
Bounds area
2,189 sq nm
Feature density
0.1526 / sq nm

Chart Statistics

15 largest layers shown

Average features per layer
22.3
Smallest layer
2
Largest layer
82
Area sq km
7,509
Features per sq km
0.04448
  1. SBDARE Seabed area 82
  2. COALNE Coastline 48
  3. UWTROC Underwater rock 47
  4. LNDARE Land area 44
  5. OBSTRN Obstruction 33
  6. DEPCNT Depth contour 27
  7. DEPARE Depth area 20
  8. M_QUAL Data quality 7
  9. MAGVAR Magnetic variation 6
  10. TS_FEB 5
  11. LNDELV 4
  12. SOUNDG Sounding 4
  13. M_COVR Coverage 3
  14. M_NPUB 2
  15. M_NSYS 2

Nearby Chart Cells

Approach usage band

  1. Islands of the Pacific Ocean - Agrihan Island, CNMI US4GU2JH - about 72 nm away
  2. Islands of the Pacific Ocean - Anatahan Island, CNMI US4GU2BH - about 72 nm away
  3. Islands of the Pacific Ocean - North of Saipan Island, CNMI US4GU1OH - about 126 nm away
  4. Islands of the Pacific Ocean - North of Puntan Sabaneta Point, CNMI US4GU1OI - about 127 nm away
  5. Islands of the Pacific Ocean - Northwest of Saipan Island, CNMI US4GU1OG - about 128 nm away
  6. Islands of the Pacific Ocean - Saipan Harbor to Bahia Laolao, CNMI US4GU1NH - about 144 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
4.2 Jan 22, 2026 metadata.json