国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

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.

高邑县| 苍溪县| 安龙县| 马关县| 成都市| 汝南县| 宝山区| 米泉市| 武鸣县| 仙桃市| 来安县| 开鲁县| 凤翔县| 南城县| 麻阳| 韶山市| 舒兰市| 井陉县| 青神县| 颍上县| 雷山县| 邳州市| 平昌县| 海伦市| 田东县| 宝坻区| 武宁县| 石嘴山市| 唐河县| 彭水| 公安县| 宁强县| 霍林郭勒市| 武安市| 新郑市| 洪雅县| 宁晋县| 吉林省| 博爱县| 阳江市| 腾冲县|