NOAA S-57 chart cell
Federated States of Micronesia - Mortlock Islands - Satowan, Lukunoch, Ettal and Namoluk Atolls
US4TD3D0
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 1,659
- S-57 layers
- 27
- Published
- Nov 4, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 6.00000° N
- South
- 5.00000° N
- West
- 153.00000° E
- East
- 154.00000° E
- Center
- 5.50000° N, 153.50000° E
- Bounds area
- 3,588 sq nm
- Feature density
- 0.4623 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 61.4
- Smallest layer
- 1
- Largest layer
- 590
- Area sq km
- 12,307
- Features per sq km
- 0.1348
- SBDARE Seabed area 590
- BUISGL 202
- DEPCNT Depth contour 178
- DEPARE Depth area 174
- LNDARE Land area 162
- COALNE Coastline 134
- ADMARE 121
- UWTROC Underwater rock 17
- M_QUAL Data quality 16
- SEAARE Sea area 12
- SLCONS Shoreline construction 10
- OBSTRN Obstruction 7
- VEGATN 6
- SOUNDG Sounding 5
- SWPARE 5
- C_ASSO 4
- M_COVR Coverage 3
- M_NPUB 2
- M_NSYS 2
- MAGVAR Magnetic variation 2
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.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4TD3D0.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TD3D0/1.0/US4TD3D0.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TD3D0/1.0/US4TD3D0.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TD3D0/1.0/US4TD3D0.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TD3D0/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 4, 2025 | metadata.json |