NOAA S-57 chart cell
Attu Island - Massacre Bay
US5A2KHH
- Usage band
- Harbor · code 5
- Current edition
- 1.0
- Features
- 358
- S-57 layers
- 23
- Published
- Jul 22, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 52.80000° N
- South
- 52.72500° N
- West
- 173.25000° E
- East
- 173.40000° E
- Center
- 52.76250° N, 173.32500° E
- Bounds area
- 25 sq nm
- Feature density
- 14.5881 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 15.6
- Smallest layer
- 1
- Largest layer
- 140
- Area sq km
- 84
- Features per sq km
- 4.25322
- DEPARE Depth area 140
- DEPCNT Depth contour 139
- UWTROC Underwater rock 13
- SBDARE Seabed area 8
- WATTUR 8
- M_QUAL Data quality 7
- WEDKLP 6
- COALNE Coastline 5
- LNDARE Land area 5
- SWPARE 5
- MAGVAR Magnetic variation 4
- SOUNDG Sounding 3
- LNDELV 2
- LNDRGN Land region 2
- OBSTRN Obstruction 2
- SEAARE Sea area 2
- ADMARE 1
- CTNARE Caution area 1
- M_COVR Coverage 1
- M_NPUB 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/US5A2KHH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/harbor/US5A2KHH/1.0/US5A2KHH.000
- GeoJSON https://charts.openships.ai/noaa/s57/harbor/US5A2KHH/1.0/US5A2KHH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/harbor/US5A2KHH/1.0/US5A2KHH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/harbor/US5A2KHH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jul 22, 2025 | metadata.json |