NOAA S-57 chart cell
Palau - Pulo Anna East and Merir
US4TB1X0
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 40
- S-57 layers
- 19
- Published
- Apr 16, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 5.00000° N
- South
- 4.00000° N
- West
- 132.00000° E
- East
- 133.00000° E
- Center
- 4.50000° N, 132.50000° E
- Bounds area
- 3,594 sq nm
- Feature density
- 0.0111 / sq nm
Chart Statistics
19 largest layers shown
- Average features per layer
- 2.1
- Smallest layer
- 1
- Largest layer
- 7
- Area sq km
- 12,326
- Features per sq km
- 0.00325
- SBDARE Seabed area 7
- DEPARE Depth area 6
- DEPCNT Depth contour 4
- M_COVR Coverage 3
- M_NPUB 2
- M_NSYS 2
- M_QUAL Data quality 2
- MAGVAR Magnetic variation 2
- SEAARE Sea area 2
- ADMARE 1
- BUISGL 1
- COALNE Coastline 1
- CTRPNT 1
- LNDARE Land area 1
- LNDELV 1
- LNDRGN Land region 1
- M_SDAT 1
- SOUNDG Sounding 1
- VEGATN 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/US4TB1X0.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TB1X0/1.0/US4TB1X0.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TB1X0/1.0/US4TB1X0.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TB1X0/1.0/US4TB1X0.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TB1X0/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Apr 16, 2025 | metadata.json |