NOAA S-57 chart cell
Rat Islands, AK
US3AK1BD
- Usage band
- Coastal · code 3
- Current edition
- 1.0
- Features
- 1,006
- S-57 layers
- 31
- Published
- May 19, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.80000° N
- South
- 51.60000° N
- West
- 177.60000° E
- East
- 180.00000° E
- Center
- 52.20000° N, 178.80000° E
- Bounds area
- 6,363 sq nm
- Feature density
- 0.1581 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 32.5
- Smallest layer
- 1
- Largest layer
- 286
- Area sq km
- 21,825
- Features per sq km
- 0.04609
- LNDARE Land area 286
- DEPARE Depth area 132
- DEPCNT Depth contour 127
- UWTROC Underwater rock 97
- COALNE Coastline 96
- RIVERS River 61
- SBDARE Seabed area 38
- OBSTRN Obstruction 28
- LNDELV 26
- LNDRGN Land region 25
- SEAARE Sea area 25
- WEDKLP 11
- M_QUAL Data quality 10
- ADMARE 5
- SOUNDG Sounding 5
- WATTUR 5
- DMPGRD 4
- MAGVAR Magnetic variation 4
- TESARE 3
- CONZNE 2
Nearby Chart Cells
Coastal 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/US3AK1BD.zip
- S-57 cell https://charts.openships.ai/noaa/s57/coastal/US3AK1BD/1.0/US3AK1BD.000
- GeoJSON https://charts.openships.ai/noaa/s57/coastal/US3AK1BD/1.0/US3AK1BD.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/coastal/US3AK1BD/1.0/US3AK1BD.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/coastal/US3AK1BD/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | May 19, 2026 | metadata.json |