外媒：中国持续推动地球轨道高分辨率观测卫星系统--CHEO ...

http://spacenews.com/article/civ ... es-satellite-system

China Pushing Ahead on Hi-Res Satellite System
By Peter B. de Selding | Feb. 28, 2014

PARIS — China’s push into high-resolution optical Earth observation through its seven-satellite CHEOS system is slightly delayed but will see the launch of a second satellite this year and three more satellites by 2016, the China National Space Administration (CNSA) said.

The China High-Resolution Earth Observation System, whose first satellite, Gaofen-1, was launched in April 2013 aboard a Chinese Long March 2D rocket, includes airborne instruments and what CNSA calls a “near-space airship,” apparently a high-altitude balloon, equipped with optical, laser and synthetic-aperture radar payloads, CNSA said.

In a presentation to the United Nations Committee on the Peaceful Uses of Outer Space, whose Scientific and Technical Subcommittee met Feb. 10-21 in Vienna, CNSA said the satellite component of CHEOS has a 1-meter ground resolution at nadir. A similar presentation of the system in October said the system could provide 80-centimeter resolution.

The Gaofen satellites, using the CAST-2000 platform built by the Chinese Academy of Space Technology, operate at between 600 and 700 kilometers in orbit and have a design life of between five and eight years.

“The in-orbit test demonstrates that the performance of GF-1 meets the design requirements completely,” CNSA said in its presentation. GF-1 imagery was sent to Pakistan to help that nation’s disaster-response system after an earthquake.

Chinese officials have said their slow but steady progress in optical Earth observation, where they concede they remain behind other nations’ developments, ultimately will help them reduce their imports of higher-resolution imagery.
中国官方承认 说他们缓慢而坚定的、在在轨高度上的地球观测能力的发展  尽管依旧落后于某些国家
但最终将会帮助他们减少对于更高分辨率图像的进口的依赖

据悉，去年发射的CHEOS系统之一的高分一号在6、700公里高度处的分辨率可达到80厘米，运行5-8年



http://spacenews.com/article/civ ... es-satellite-system

China Pushing Ahead on Hi-Res Satellite System
By Peter B. de Selding | Feb. 28, 2014

PARIS — China’s push into high-resolution optical Earth observation through its seven-satellite CHEOS system is slightly delayed but will see the launch of a second satellite this year and three more satellites by 2016, the China National Space Administration (CNSA) said.

The China High-Resolution Earth Observation System, whose first satellite, Gaofen-1, was launched in April 2013 aboard a Chinese Long March 2D rocket, includes airborne instruments and what CNSA calls a “near-space airship,” apparently a high-altitude balloon, equipped with optical, laser and synthetic-aperture radar payloads, CNSA said.

In a presentation to the United Nations Committee on the Peaceful Uses of Outer Space, whose Scientific and Technical Subcommittee met Feb. 10-21 in Vienna, CNSA said the satellite component of CHEOS has a 1-meter ground resolution at nadir. A similar presentation of the system in October said the system could provide 80-centimeter resolution.

The Gaofen satellites, using the CAST-2000 platform built by the Chinese Academy of Space Technology, operate at between 600 and 700 kilometers in orbit and have a design life of between five and eight years.

“The in-orbit test demonstrates that the performance of GF-1 meets the design requirements completely,” CNSA said in its presentation. GF-1 imagery was sent to Pakistan to help that nation’s disaster-response system after an earthquake.

Chinese officials have said their slow but steady progress in optical Earth observation, where they concede they remain behind other nations’ developments, ultimately will help them reduce their imports of higher-resolution imagery.
中国官方承认 说他们缓慢而坚定的、在在轨高度上的地球观测能力的发展  尽管依旧落后于某些国家
但最终将会帮助他们减少对于更高分辨率图像的进口的依赖

据悉，去年发射的CHEOS系统之一的高分一号在6、700公里高度处的分辨率可达到80厘米，运行5-8年