NOAA S-57 chart cell
Copano Bay and Aransas River
US4TX1IB
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 109
- S-57 layers
- 27
- Published
- Sep 27, 2024
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 28.20000° N
- South
- 27.90000° N
- West
- 97.50000° W
- East
- 97.20000° W
- Center
- 28.05000° N, 97.35000° W
- Bounds area
- 286 sq nm
- Feature density
- 0.3807 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 4
- Smallest layer
- 1
- Largest layer
- 23
- Area sq km
- 982
- Features per sq km
- 0.11099
- SLCONS Shoreline construction 23
- COALNE Coastline 16
- LNDRGN Land region 10
- BUAARE 6
- DEPARE Depth area 6
- RIVERS River 6
- DEPCNT Depth contour 5
- LAKARE 5
- CBLOHD 4
- LNDARE Land area 3
- SLOTOP 3
- LNDMRK 2
- M_QUAL Data quality 2
- OBSTRN Obstruction 2
- SBDARE Seabed area 2
- SEAARE Sea area 2
- SOUNDG Sounding 2
- BRIDGE 1
- M_COVR Coverage 1
- M_NPUB 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/US4TX1IB.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4TX1IB/1.0/US4TX1IB.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4TX1IB/1.0/US4TX1IB.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4TX1IB/1.0/US4TX1IB.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4TX1IB/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Sep 27, 2024 | metadata.json |