NOAA S-57 chart cell
Islands of the Pacific Ocean - Northwest of Apra Harbor, Guam
US4GU1ID
- Usage band
- Approach · code 4
- Current edition
- 1.1
- Features
- 39
- S-57 layers
- 16
- Published
- Jun 12, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 13.80000° N
- South
- 13.50000° N
- West
- 144.30000° E
- East
- 144.60000° E
- Center
- 13.65000° N, 144.45000° E
- Bounds area
- 315 sq nm
- Feature density
- 0.1237 / sq nm
Chart Statistics
16 largest layers shown
- Average features per layer
- 2.4
- Smallest layer
- 1
- Largest layer
- 10
- Area sq km
- 1,081
- Features per sq km
- 0.03607
- CBLSUB 10
- DEPARE Depth area 6
- DEPCNT Depth contour 4
- SOUNDG Sounding 4
- M_QUAL Data quality 3
- M_NPUB 2
- CONZNE 1
- COSARE 1
- DMPGRD 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SEAARE Sea area 1
- TESARE 1
- WRECKS Wreck 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/US4GU1ID.zip
- S-57 base cell https://charts.openships.ai/noaa/s57/approach/US4GU1ID/1.1/US4GU1ID.000
- S-57 update 001 https://charts.openships.ai/noaa/s57/approach/US4GU1ID/1.1/US4GU1ID.001
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4GU1ID/1.1/US4GU1ID.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4GU1ID/1.1/US4GU1ID.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4GU1ID/1.1/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.1 | Jun 12, 2026 | metadata.json |