China Pictorials 中国

Pictures from China
中国图像

Showing posts with label spacecraft. Show all posts
Showing posts with label spacecraft. Show all posts

Tuesday, January 21, 2014

Yutu rover beams back pictures from the surface of the Moon

Yutu (玉兔 - "Jade Rabbit") is an unmanned lunar rover in China's Chang'e 3 mission to the Moon.
 It was launched on 1 December 2013, and reached the Moon's surface on 14 December 2013. The mission marks the first soft landing on the Moon since 1976 and the first rover to operate there since the Soviet Lunokhod 2 ceased operations on 11 May 1973. Though Yutu is 40 years behind American and Soviet rovers. It still represents a significant achievment for Chinese space effort. The scientific objectives of Chang'e-3 mainly include lunar surface topography and geology survey, lunar surface material composition and resource survey, Sun-Earth-Moon space environment detection and lunar-based astronomical observation.
Chang'e 3 will attempt to perform the first direct measurement of the structure and depth of the lunar soil down to a depth of 30 m (98 ft), and investigate the lunar crust structure down to several hundred meters deep. The Yutu rover has a mass of 140 kg, with a payload capacity of 20 kg. Yutu is equipped with a robotic arm to position its APXS near a target sample. In addition, the rover can transmit video in real time, and has automatic sensors to prevent it from colliding with other objects. Yutu was designed to explore an area of 3 square kilometres during its 3-month mission, with a maximum travelling distance of 10 km. The Yutu rover carries a ground-penetrating radar and spectrometers to inspect the composition of the soil and the structure of the lunar crust beneath it. The lander entered sleep mode on 25 December, followed by the rover on 26 December.
On 11 January 2014, after the two-week lunar night was over, both the rover and lander were taken out of sleep mode. On 16 January, the rover completed its first examination of the lunar soil.
Future missions may bring moon soil back to earth. Some of pictures from the surface of the Moon:
View of Earth from the Moon – by Chang’e-3 on Christmas Day 2013 Earth indeed is a blue marble.
From extreme ultraviolet camera on Dec. 16, 2013 shows the observation of the Earth’s plasmasphere
Photo of Yutu moon rover taken by camera on the Chang’e-3 moon lander on Dec. 15, 2013 Chinese flag is brightly red.
Yutu portrait taken by the Chang’e-3 lander on Dec. 22, 2013
Photo of Chang’e-3 moon lander emblazoned with Chinese national flag taken by the panoramic camera on the Yutu moon rover on Dec. 22, 2013
A digitally-combined polar panorama shows a 360 degree color view of the moonscape around the Chang’e-3 lander after the Yutu moon rover drove onto the lunar surface leaving visible tracks behind

Wednesday, November 9, 2011

China's First Docking in Space with Shenzhou 8 spacecraft and Tiangong 1 space module

Shenzhou 8 is an unmanned spacecraft launched on November 1 in China, by a modified Long March 2F (CZ-2F) rocket which lifted off from the Jiuquan Satellite Launch Center.

The Shenzhou 8 spacecraft was remotely docked with the Tiangong 1 space module (launched on 29 September 2011). This unmanned docking—China's first—will be followed in 2012 with the manned Shenzhou 9 mission, which will perform a manned docking (also China's first) with the Tiangong 1 module. Only the Soviet Union (Russia) and the European Space Agency had achieved automatic rendezvous and docking prior to China's accomplishment.

The landmark rendezvous and docking was carried live by state run CCTV for all the world to watch. The impressive 2 hour long TV broadcast showed simultaneous and breathtaking camera videos from both the unpiloted Shenzhou-8 capsule and the Tiangong-1 space station module as they viewed one another in the cameras field of view and slowly approached together with the lovely Earth as a backdrop.

Mission controllers carefully monitored all spacecraft systems on both Shenzhou-8 and Tiangong-1 as they sped closer at about 20 cm/sec and stopped at several parking points along the way (400 m, 140 m, 30 m) to confirm everything was nominal.

Chinese engineers and on board systems precisely guided the two spaceships and watched for any deviations. In case of any failures they had the capability to radio the vehicles to separate. But no deviations occurred and the autonomous docking proceeded to completion.

The two vehicles will remain docked for 12 days, then unhook and back off about 150 meters and then conduct another practice docking. The second practice docking is being done to gain more expertise and confidence and will be carried out under different conditions and in daylight.

The combined Shenzhou-8/Tiangong-1 orbiting complex weighs about 16 tons, some 8 tons each. Tiangong-1 is 10.4 m in length and 3.3. m in diameter. Shenzhou 8 is 9.2 m in length.

图解神舟八号天宫一号空间交会对接过程

11月1日清晨,神舟八号飞船从西北戈壁滩成功发射。已进入近地轨道的飞船将于两天内完成与中国空间实验室雏形——天宫一号目标飞行器的首次空间交会对接。
这次交会对接试验将为我国2020年左右建立空间站奠定重要技术基础。试验成功后,我国将成为继美国、俄罗斯后第三个完全独立拥有空间交会对接技术的国家。
从酒泉卫星发射中心升空的长征二号F遥八火箭具有更高的入轨精度,它将飞船送入了初始轨道。
神舟八号将通过远距离导引、自主控制,靠近已在轨飞行的天宫一号,实现两次对接和组合体飞行,随后返回地面。
中国载人航天工程发言人武平说,神舟八号是改进型飞船,具有自动和手动交会对接功能,沿用轨道舱、返回舱和推进舱三舱构型,全长9米,最大直径2.8米,起飞质量8082公斤。神舟八号与此前的飞船相比,一半以上设备发生了技术状态变化。其中,新研制设备约占15%。










hit counter

Free Hit Counter
Free Hit Counter

World Visitors