NOAA S-57 chart cell
Approaches to Homer Harbor
US4AK4PH
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 2,279
- S-57 layers
- 43
- Published
- Jul 16, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 59.70000° N
- South
- 59.40000° N
- West
- 151.80000° W
- East
- 151.20000° W
- Center
- 59.55000° N, 151.50000° W
- Bounds area
- 329 sq nm
- Feature density
- 6.9304 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 53
- Smallest layer
- 1
- Largest layer
- 490
- Area sq km
- 1,128
- Features per sq km
- 2.02058
- UWTROC Underwater rock 490
- DEPCNT Depth contour 416
- DEPARE Depth area 325
- COALNE Coastline 266
- SBDARE Seabed area 240
- LNDARE Land area 118
- RIVERS River 74
- LNDELV 58
- SLCONS Shoreline construction 52
- SEAARE Sea area 24
- LNDRGN Land region 22
- M_QUAL Data quality 22
- OBSTRN Obstruction 21
- SLOTOP 21
- LIGHTS Light 16
- BUISGL 13
- BCNSPP Special purpose beacon 10
- CBLOHD 8
- PILPNT 8
- DAYMAR 7
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/US4AK4PH.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4AK4PH/1.0/US4AK4PH.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4AK4PH/1.0/US4AK4PH.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4AK4PH/1.0/US4AK4PH.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4AK4PH/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Jul 16, 2025 | metadata.json |