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الاثنين، 26 مايو، 2008

تغطية حية لهبوط الفينيق

Mars Phoenix Lander Update -- Touchdown A signal has been detected from Phoenix indicating that the lander is on the surface of Mars.

Mars Phoenix Lander Update -- Lander Separated/Descent Thrusters Increased
The lander separated from the backshell and the parachute at an altitude slightly over half a mile above the Martian surface while traveling at a speed of about 125 miles per hour. At time of separation, the spacecraft was in a freefall for about half a second before the 12 descent thrusters began to fire.

Mars Phoenix Lander Update -- Parachute Deployed/Heat Shield Jettison
The deployment took place while the spacecraft was at an altitude of about 7.8 miles and traveling about 1.7 times the speed of sound. About 15 seconds after the parachute deployed, the heat shield was jettisoned.

1:47
Mars Phoenix Lander Update -- Spacecraft Entered Atmosphere The spacecraft has hit the top of the Martian atmosphere at an altitude of about 78 miles. It is traveling at about 12,750 miles per hour. The temperature of Phoenix's heat shield will peak at about 2,600 degrees Fahrenheit during entry.

1:39
Mars Phoenix Lander Update -- Cruise Stage Has Separated
Phoenix has relied on the 181 pounds of hardware to provide power during its 422-million-mile journey to Mars.

1:16
Mars Phoenix Lander Update -- Propulsion System Pressurized
The propulsion system that feeds Phoenix's thrusters -- 12 for descent and four for orientation -- has been pressurized in preparation for firing.







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