NOAA S-57 chart cell
Federated States of Micronesia - Ulithi Atoll, Northeast
US4TI1A0
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 9
- S-57 layers
- 8
- Published
- Nov 4, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 11.00000° N
- South
- 10.00000° N
- West
- 140.00000° E
- East
- 141.00000° E
- Center
- 10.50000° N, 140.50000° E
- Bounds area
- 3,544 sq nm
- Feature density
- 0.0025 / sq nm
Chart Statistics
8 largest layers shown
- Average features per layer
- 1.1
- Smallest layer
- 1
- Largest layer
- 2
- Area sq km
- 12,157
- Features per sq km
- 0.00074
- M_COVR Coverage 2
- DEPARE Depth area 1
- M_NPUB 1
- M_NSYS 1
- M_QUAL Data quality 1
- MAGVAR Magnetic variation 1
- SEAARE Sea area 1
- SOUNDG Sounding 1
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/US4TI1A0.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TI1A0/1.0/US4TI1A0.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TI1A0/1.0/US4TI1A0.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TI1A0/1.0/US4TI1A0.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TI1A0/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Nov 4, 2025 | metadata.json |