综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

New satellite helps space exploration 

Updated: 2011-07-13 07:39

By Tan Zongyang (China Daily)

  Comments() Print Mail Large Medium  Small 分享按鈕 0

BEIJING - China blasted off a new data relay satellite, Tianlian I-02, on Monday at the Xichang Satellite Launch Center in southwestern Sichuan province.

The new satellite will bolster the country's satellite communication network for space docking.

The satellite was launched on a Long March-3C carrier rocket at 11:41 pm, sources at the center told Xinhua News Agency.

The satellite separated from the rocket 26 minutes after its launch and was then successfully delivered into a geostationary transfer orbit, the report said.

Developed by the China Academy of Space Technology under the China Aerospace Science and Technology Corporation, the satellite is the country's second data relay satellite. The first, Tianlian I-01, was launched in Xichang on April 25, 2008.

The two satellites will form a network to bolster communications between China's spacecraft and bases on Earth, according to the center.

They will also be used to help the nation's first space docking, scheduled for the second half of this year.

As planned, China will launch space module Tiangong-1, which was designed as a platform that will dock with an unmanned spaceship, Shenzhou VIII, for the country's first space-docking mission later this year.

Two more Shenzhou spaceships will dock with Tiangong-1 next year, and one will be manned by two or three astronauts, according to the China Manned Space Engineering Office, which was the main user of the Tianlian I series data relay satellites.

"The launch of the satellite is of great significance to improve the efficiency of tracking and commanding spaceships," Pang Zhihao, a researcher and deputy editor-in-chief of the magazine Space International, told China Daily on Tuesday.

Pang said the new satellite could cover a greater area to track and command the country's space vehicles in low-Earth orbits, such as manned spacecraft and remote sensing satellites, from a higher position in outer space.

"Only three satellites of this kind are needed to form a global communication network, and China has two now," he said.

The satellite could also facilitate real-time communications with the astronauts, which will benefit the country's future manned space flights, he said.

The world's first data relay satellite was launched by the United States in 1983. The US now has six such satellites.

牙克石市| 三穗县| 井冈山市| 政和县| 旺苍县| 建湖县| 疏勒县| 乾安县| 镇平县| 定西市| 镇宁| 仙桃市| 宁阳县| 临朐县| 寻甸| 白山市| 九龙坡区| 边坝县| 沁水县| 海阳市| 安宁市| 五指山市| 大城县| 赞皇县| 洛浦县| 九龙县| 吉首市| 保亭| 胶州市| 晋城| 莆田市| 贡觉县| 宝山区| 泽普县| 行唐县| 遵化市| 彭山县| 右玉县| 平原县| 西畴县| 三门县|