RedMercury
Junior Member
Re: chinese satelittes
"We won't rest until we can count each grain of rice" sort of thing?
"We won't rest until we can count each grain of rice" sort of thing?
China's Space Program News Thread
- Thread starter crazyinsane105
- Start date
- Status
szbd
Junior Member
Re: chinese satelittes
It's like they use color and texture of the image taken over the field to estimate. First, you need to distinguish between crops and grass, then different kinds of crops...... One thing for sure, the numbers are always wrong.
They do scientific research too. The fan hui shi 1, another name jianbing 1, took some tomato seeds into the space, then they were distributed to selected high school students for experiment. My high school has a glass warm house and one of my classmates was selected. The tomatos are hugh, and taste good too.
It's like they use color and texture of the image taken over the field to estimate. First, you need to distinguish between crops and grass, then different kinds of crops...... One thing for sure, the numbers are always wrong.
They do scientific research too. The fan hui shi 1, another name jianbing 1, took some tomato seeds into the space, then they were distributed to selected high school students for experiment. My high school has a glass warm house and one of my classmates was selected. The tomatos are hugh, and taste good too.
Seems a backup of failed SinoStar-2
China launches satellite without US component
By Peter B. de Selding, SPACE.com
CANNES, France — A Chinese Long March 3B rocket on July 5 successfully orbited ChinaSatcom's Chinasat 6B telecommunications satellite, the fourth satellite built for Chinese satellite-fleet operators by Thales Alenia Space — the sole Western satellite builder that has developed a product line designed to avoid U.S. satellite component export restrictions.
Building satellites devoid of U.S. components permits the spacecraft to be launched on a Chinese launch vehicle. Current U.S. government policy effectively bars U.S. satellite components from being exported to China.
Officials from Thales Alenia Space, which is headquartered here, confirmed that Chinasat 6B was healthy in orbit following the launch from the Xichang Satellite Launch Center in southwest China's Sichuan Province. The spacecraft, a Spacebus 4000 C2 satellite frame, weighed 9,920 pounds (4,500 kilograms) at launch and carries 38 C-band transponders. ChinaSatcom intends to operate it from 115.5 degrees east longitude to provide up to 300 television programs in China and elsewhere in East Asia.
Thales Alenia Space has been cultivating the Chinese satellite market for more than 20 years. The company, under its former name Alcatel Alenia Space, built components for the Chinasat 1 satellite before moving toward completed products. The company is the prime contractor for the Sinosat 1, Apstar 6 and Chinasat 9 satellites, in addition to Chinasat 6B.
Thales Alenia Space officials say getting around U.S. State Department restrictions — generally referred to as ITAR, or International Traffic in Arms Regulations— with respect to China's rocket adds around six percent to the cost of a telecommunications satellite. That is because these satellites cannot take advantage of U.S. companies whose production lines are active and thus whose unit costs are reduced — in addition to the fact companies producing in U.S. dollars have an advantage over euro-based companies like Thales Alenia Space.
NigcomSat-1 passes In-Orbit-Test, Contract fulfilled
The China Great Wall Industry Corporation (CGWIC) handed over the Nigerian Communication Satellite (NIGCOMSAT-1), to the Nigerian federal government here on Friday.
Nigeria commissioned the Chinese company to design and build the satellite and to launch it into orbit at the Xichang Satellite Launch Center in China's southwestern Sichuan Province in May 2007.
Nigerian President Umaru Yar'Adua sent his special envoy, Gana Kingibe, secretary to the Nigerian government, to address the handover ceremony and announced the commencement of commercial activities by the Nigcomsat Limited, the operator of the satellite.
The formal operation of NIGCOMSAT-1 would considerably improve the country's telecommunications, broadcasting, the Internet, multimedia, real time monitoring and navigation services, which could in turn create a visible multiplier effect on other sectors of the economy, said the envoy.
He said the operation will signal Nigerian people's determination to be a significant player in today's fast globalized and knowledge and technology-driven world.
He commended the CGWIC's contribution and said "Our appreciation also goes to the government and people of the People's Republic of China."
Other Nigerian government officials, Chinese diplomats and company officials of both sides attended the ceremony.
China launches satellite without US component
By Peter B. de Selding, SPACE.com
CANNES, France — A Chinese Long March 3B rocket on July 5 successfully orbited ChinaSatcom's Chinasat 6B telecommunications satellite, the fourth satellite built for Chinese satellite-fleet operators by Thales Alenia Space — the sole Western satellite builder that has developed a product line designed to avoid U.S. satellite component export restrictions.
Building satellites devoid of U.S. components permits the spacecraft to be launched on a Chinese launch vehicle. Current U.S. government policy effectively bars U.S. satellite components from being exported to China.
Officials from Thales Alenia Space, which is headquartered here, confirmed that Chinasat 6B was healthy in orbit following the launch from the Xichang Satellite Launch Center in southwest China's Sichuan Province. The spacecraft, a Spacebus 4000 C2 satellite frame, weighed 9,920 pounds (4,500 kilograms) at launch and carries 38 C-band transponders. ChinaSatcom intends to operate it from 115.5 degrees east longitude to provide up to 300 television programs in China and elsewhere in East Asia.
Thales Alenia Space has been cultivating the Chinese satellite market for more than 20 years. The company, under its former name Alcatel Alenia Space, built components for the Chinasat 1 satellite before moving toward completed products. The company is the prime contractor for the Sinosat 1, Apstar 6 and Chinasat 9 satellites, in addition to Chinasat 6B.
Thales Alenia Space officials say getting around U.S. State Department restrictions — generally referred to as ITAR, or International Traffic in Arms Regulations— with respect to China's rocket adds around six percent to the cost of a telecommunications satellite. That is because these satellites cannot take advantage of U.S. companies whose production lines are active and thus whose unit costs are reduced — in addition to the fact companies producing in U.S. dollars have an advantage over euro-based companies like Thales Alenia Space.
NigcomSat-1 passes In-Orbit-Test, Contract fulfilled
The China Great Wall Industry Corporation (CGWIC) handed over the Nigerian Communication Satellite (NIGCOMSAT-1), to the Nigerian federal government here on Friday.
Nigeria commissioned the Chinese company to design and build the satellite and to launch it into orbit at the Xichang Satellite Launch Center in China's southwestern Sichuan Province in May 2007.
Nigerian President Umaru Yar'Adua sent his special envoy, Gana Kingibe, secretary to the Nigerian government, to address the handover ceremony and announced the commencement of commercial activities by the Nigcomsat Limited, the operator of the satellite.
The formal operation of NIGCOMSAT-1 would considerably improve the country's telecommunications, broadcasting, the Internet, multimedia, real time monitoring and navigation services, which could in turn create a visible multiplier effect on other sectors of the economy, said the envoy.
He said the operation will signal Nigerian people's determination to be a significant player in today's fast globalized and knowledge and technology-driven world.
He commended the CGWIC's contribution and said "Our appreciation also goes to the government and people of the People's Republic of China."
Other Nigerian government officials, Chinese diplomats and company officials of both sides attended the ceremony.
Last edited by a moderator:
Schumacher
Senior Member
Re: chinese satelittes
Below is a report saying China's moon probe 'Chang Er 1' will be launched on Oct 1 ie the national day.
Interestingly, the report also says the date is also chosen partly to be after Japan's probe in Aug so that they can study some data from its launch & path to the moon.
中国首颗绕月卫星十月一日在西昌发射
（2007-07-09 5:00 pm）
（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。
一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。
工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。
他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。
据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。
联合早报网
（编辑：黄秀茱）
Below is a report saying China's moon probe 'Chang Er 1' will be launched on Oct 1 ie the national day.
Interestingly, the report also says the date is also chosen partly to be after Japan's probe in Aug so that they can study some data from its launch & path to the moon.
中国首颗绕月卫星十月一日在西昌发射
（2007-07-09 5:00 pm）
（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。
一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。
工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。
他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。
据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。
联合早报网
（编辑：黄秀茱）
Re: chinese satelittes
中国首颗绕月卫星十月一日在西昌发射
（2007-07-09 5:00 pm）
（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。
一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。
工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。
他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。
据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。
联合早报网
（编辑：黄秀茱）[/QUOTE]
What is with all the Question marks? is it soposed to be Chinese or something.
中国首颗绕月卫星十月一日在西昌发射
（2007-07-09 5:00 pm）
（综合讯）中央社消息，中国绕月卫星“嫦娥一号”将于十月一日在西昌发射中心发射，这代表中国正式启动登月计划。
一名参与“嫦娥一号”工程的人员、中国国防科工委综合管理处以及国防科工委“嫦娥一号”密云地面站负责人都证实，绕月卫星将于“十、一”中国国庆日在西昌发射。
工程人员说，目前“嫦娥一号”发射工作已大部分完成，选在十月一日发射，可能与日本八月十六日首次发射绕月卫星有关，如此可使中国分析日本绕月卫星的数据以修正不成熟的绕月卫星技术，以保证该计划取得更大的成功。
他说，发射绕月卫星技术极其复杂，需要进行停泊轨道、地球月亮转移轨道加速、轨道修正等七个关键步骤，任何一步出现微小错误，就会导致计划失败。
据表示，目前“嫦娥一号”带有比美国卫星都先进的仪器，将首次在世界上拍摄三维月球地图。
联合早报网
（编辑：黄秀茱）[/QUOTE]
What is with all the Question marks? is it soposed to be Chinese or something.
Re: chinese satelittes
.
interesting indeed!!!
can u please provide the resolution of this new satellite ??
also it's orbit location ?? is it leo ??
also is this the same satellite which has an international no; of 2006-019A ??
please update me if possible.
cheers.
.
.
interesting indeed!!!
can u please provide the resolution of this new satellite ??
also it's orbit location ?? is it leo ??
also is this the same satellite which has an international no; of 2006-019A ??
please update me if possible.
cheers.
.
Roger604
Senior Member
Re: chinese satelittes
Can anyone comment on the method China is using to get the probe to moon orbit?
Apparently, the rocket is not strong enough to deliver the payload to the moon, so they have to use the earth's gravity to sling-shot the probe into moon orbit. This sounds really sophisticated and clever, but is it reliable? Have other countries tried this too?
Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon.
Can anyone comment on the method China is using to get the probe to moon orbit?
Apparently, the rocket is not strong enough to deliver the payload to the moon, so they have to use the earth's gravity to sling-shot the probe into moon orbit. This sounds really sophisticated and clever, but is it reliable? Have other countries tried this too?
Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon.
RavenWing278
Junior Member
Re: chinese satelittes
for a rocket to acheive max thrust and conserve max fuel, it has to be launched in an easterly direction, thus taking advantage of the earths rotational velocity. It will have to belaunched as close to the equator as possible but as china is no where near the equator would they have their launch from a neighbouring country?
for a rocket to acheive max thrust and conserve max fuel, it has to be launched in an easterly direction, thus taking advantage of the earths rotational velocity. It will have to belaunched as close to the equator as possible but as china is no where near the equator would they have their launch from a neighbouring country?
sinowarrior
Junior Member
Re: chinese satelittes
since hainan base is not ready for action yet, so xichang has to be used, and it should work fine.
sling shot was used so many times during the exploration of other planents, so it should not be a problem.
Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon????
what do you mean?SELENE is launched to a geocentric parking orbit first, so in this regard, it is not directly send to the moon by H2A
since hainan base is not ready for action yet, so xichang has to be used, and it should work fine.
sling shot was used so many times during the exploration of other planents, so it should not be a problem.
Lucky for the Japanese, their rocket is big enough to deliver their probe straight to the moon????
what do you mean?SELENE is launched to a geocentric parking orbit first, so in this regard, it is not directly send to the moon by H2A
Re: chinese satelittes
Yes, the gravity slingshot technique has been used many tines to send probes out of Earth orbit to the moon or other planets. As far as I know it has been around for decades.
Yes, the gravity slingshot technique has been used many tines to send probes out of Earth orbit to the moon or other planets. As far as I know it has been around for decades.
- Status