NOAA S-57 chart cell
Gulf of America
US4TX1HE
- Usage band
- Approach · code 4
- Current edition
- 3.0
- Features
- 77
- S-57 layers
- 20
- Published
- Apr 9, 2026
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 27.90000° N
- South
- 27.60000° N
- West
- 96.60000° W
- East
- 96.30000° W
- Center
- 27.75000° N, 96.45000° W
- Bounds area
- 287 sq nm
- Feature density
- 0.2682 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 3.9
- Smallest layer
- 1
- Largest layer
- 26
- Area sq km
- 985
- Features per sq km
- 0.07819
- PIPSOL 26
- OFSPLF 9
- OBSTRN Obstruction 8
- DEPARE Depth area 4
- SOUNDG Sounding 4
- BOYSPP Special purpose buoy 3
- DEPCNT Depth contour 3
- SBDARE Seabed area 3
- WRECKS Wreck 3
- FAIRWY Fairway 2
- LIGHTS Light 2
- M_QUAL Data quality 2
- CONZNE 1
- COSARE 1
- EXEZNE 1
- M_COVR Coverage 1
- M_NPUB 1
- M_NSYS 1
- MAGVAR Magnetic variation 1
- SEAARE Sea area 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/US4TX1HE.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1HE/3.0/US4TX1HE.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1HE/3.0/US4TX1HE.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1HE/3.0/US4TX1HE.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1HE/3.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 3.0 | Apr 9, 2026 | metadata.json |