NOAA S-57 chart cell
Attu Island - Massacre Bay
US5A2KIG
- Usage band
- Harbor · code 5
- Current edition
- 1.0
- Features
- 660
- S-57 layers
- 27
- Published
- Jul 22, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.87500° N
- South
- 52.80000° N
- West
- 173.10000° E
- East
- 173.25000° E
- Center
- 52.83750° N, 173.17500° E
- Bounds area
- 24 sq nm
- Feature density
- 26.9407 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 24.4
- Smallest layer
- 1
- Largest layer
- 191
- Area sq km
- 84
- Features per sq km
- 7.85466
- DEPCNT Depth contour 191
- DEPARE Depth area 176
- SBDARE Seabed area 82
- UWTROC Underwater rock 54
- COALNE Coastline 21
- SLCONS Shoreline construction 21
- OBSTRN Obstruction 17
- MORFAC 13
- LNDARE Land area 12
- LNDRGN Land region 10
- RIVERS River 10
- WEDKLP 10
- M_QUAL Data quality 8
- SEAARE Sea area 8
- LAKARE 6
- SWPARE 5
- SOUNDG Sounding 4
- CTNARE Caution area 2
- PILPNT 2
- BRIDGE 1
Nearby Chart Cells
Harbor 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/US5A2KIG.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5A2KIG/1.0/US5A2KIG.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5A2KIG/1.0/US5A2KIG.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5A2KIG/1.0/US5A2KIG.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5A2KIG/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jul 22, 2025 | metadata.json |