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The Gateway to Astronaut Photography of Earth
(NASA Crew Earth Observations)
Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS012 Roll: E Frame: 9567 Mission ID on the Film or image: ISS012
Country or Geographic Name: USA-TEXAS
Features: HOUSTON SHIP CHAN., REFINERIES
Center Point Latitude: 29.7 Center Point Longitude: -95.1 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: 31
Camera Focal Length: 800mm
Camera: E4: Kodak DCS760C Electronic Still Camera
Film: 3060E : 3060 x 2036 pixel CCD, RGBG array.
Percentage of Cloud Cover: 10 (0-10)
NadirGMT Date: 20051128 (YYYYMMDD) GMT Time: 211343 (HHMMSS)
Nadir Point Latitude: 28.0, Longitude: -94.3 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: North
Sun Azimuth: 228 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 191 nautical miles (354 km)
Sun Elevation Angle: 23 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 160
CaptionsHouston Ship Channel, Texas
This astronaut photograph depicts the San Jacinto River portion of the Houston Ship Channel, one of the United States’ busiest sea ports. The channel is a conduit between the continental interior and the Gulf of Mexico for both petrochemical products and Midwestern grain. The original watercourse for the channel, Buffalo Bayou, has its headwaters thirty miles to the west of the city of Houston. It has been used to move goods to the sea since at least 1836. Wakes of ships traveling along the channel are visible to the south of the Goat Islands (bright, oblong islands at top center of image). The close proximity to Texas oilfields led to the establishment of numerous petrochemical refineries along the waterway, such as the ExxonMobil Baytown installation on the eastern bank of the San Jacinto River.
While much of the Ship Channel is associated with heavy industry, two icons of Texas history are also located along its length. The inset (area denoted by white rectangle) highlights the battleship USS Texas and the San Jacinto Monument. The Texas saw service during both World Wars, and is the last remaining example of a dreadnought-class battleship in existence. The nearby San Jacinto Monument commemorates the 1836 battle in which Texas won its independence from Mexico. The monument itself is a 570-foot-high (173-meter) shaft topped by a 34-foot-high (10-meter) star, making it 15 feet (5 meters) higher than the Washington Monument in Washington, D.C.
The Houston Ship Channel has been periodically widened and deepened to accommodate ever-larger ships, and is currently 530 feet wide by 45 feet deep by 50 miles long (161 meters by 14 meters by 80 kilometers). The islands in the ship channel are part of the ongoing widening and deepening project. The islands are formed from soil pulled up by dredging, and the salt marshes and bird islands are part of the Houston Port Authority’s beneficial use and environmental mitigation responsibilities.
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