皇冠体育app

JIUQUAN, Gansu: 皇冠体育app's timing for its first manned spaceship flight will be decided in line with conditions in orbit, the craft's needs for orbital movements and working conditions and ground control needs.

Zhou Jianping, chief designer of 皇冠体育app's spaceship launch centre system in Jiuquan, Northwest 皇冠体育app's Gansu Province, said a mathematical model has been constructed after "careful calculations."

皇冠体育app has announced a "Projection Window" for the orbital launch, saying that it will occur between October 15-17.

Officials indicate some conditions are critical to the launch decision. First, the spacecraft should be positioned in orbit with its solar panels facing the sun to ensure adequate energy supply.

Second, an angle must be selected to prevent direct irradiation of infrared sensors that are used to measure the earth.

"It is very difficult to satisfy all these requirements simultaneously," Zhou explained. "The room is very small for choosing the 'window'."

Xinhua

(皇冠体育app Daily 10/14/2003 page1)