Another 10 days, ii will soar in the end one year anniversary.
Reporters from the national defense science and technology today GongYeJu learns, the country's second lunar orbiter charng-er number two successfully from 1.72 million kilometers deep space back to the first scientific exploration data.
At present, the number two satellite state, all kinds of good flight control events, and the remaining normal execution propellant about 115 kilograms.
August 25 and 27 points when, after 77 days of flight number two, goddess of the moon for the first time in the world to realize the moon's orbit, controlled from the start, accurate into to Lagrange L2 point of orbit. By September 20, the number two satellite already around L2 point 26 days and stable operation.
It is reported, the goddess of the satellite number two is expected to fly around the L2 point to the end of next year, to be built in China, the deep space CeKongZhan provide the space testing and calibration goal, further distance measurement and control ability in China. Verify
Reporters from the national defense science and industry and the bureau that number three is currently in the development stage, there is a lot of testing validation, is expected to launch around 2013.
The latest data
1.7 million kilometers of space of son
Lunar probing deputy chief designer chang s. chang said, this is the first in the country for the first time about 1.7 million miles (kilometers) from earth, the equivalent of 200 DuoGe earth radius to detect the science, space exploration data on China's space science are valuable.
These data is in the number two from the moon to Lagrange L2 point in the process, the solar wind ion detector, the sun high-energy particle detector, gamma rays spectrum is three payload boot on the space environment detection data.
According to the engineering overall arrangement, which will open again in the recent selects machine part payload, implementing the scientific detection task.
From September 15, 25 points, when 19 start the number two to 750000 bits per second rate will be three kinds of payload data from the ground, all back more than three hours transmit data bits of 7 billion.
The earth to day to Lagrange L2 point between the space environment detection data, to improve our day to the understanding of the space environment is of important value.
Detection significance
The solar wind in our country out. One detection
In addition, the number two with the United States, Japan ARTMIS can GEOTAIL etc form multi-point observation research satellite.
Lunar probing the ground system LiChunLai said the chief designer, number two on the solar wind ion detector, as the sun outside the wind at L2 spread of important point, no satellite in this position for a long time of solar wind detection.
The goddess of the number two in the world for the first time to L2 near the solar wind structure and evolution characteristics of long detecting research, fill in this detection data loss.
For all the moon on graph soil I "MenErQing"
LiChunLai introduces, at present, the number two biggest bright spot is made all the surface of the moon a three-dimensional image: full moon 7 m resolution image; Rainbow bay local better than the 1.5 m resolution image.
The goddess of the number two won 32 rail rainbow bay local areas like better than the 1.5 m resolution yuan of high precision imaging data and the second line array image data processing got 3 d terrain data, make the local high resolution 3 d image figure; Obtained including 90 degrees from the equator, the moon, the image data to achieve complete coverage of the month.
At present, the ground application system has completed all the moon 50 m resolution image data products production and map making, is expected to finish before the end of the seven meters of the resolution of the image data products production.
Month soil characteristics, microwave detector detect has got a different orbit of eight times covered data.
The Chinese academy of sciences space science and applied research center, Hong Kong university of science and technology, huazhong university of science and technology and the national observatory, and other units are actively conduct research, scientific interpretation the moon data, further make the microwave on brightness temperature distribution on soil characteristics and the inversion.
Finally "home"
Or to fly 3 million km
The moon applied science chief scientist restrictive marketplaces, experts hope the introduced number two for a long time in L2 point can carry out development test by the end of next year, validation satellite life and measurement and control communications technology.
As for the complete L2 point after the scientific exploration, there will be how of "home", said, it mainly depends on restrictive marketplaces satellite own condition and star on the remaining fuel, experts are demonstrated several projects.
Restrictive marketplaces, the most bold introduce scheme is the goddess of the two Numbers again flying 3 million miles between earth and the sun, arrived the Lagrangian L1 point, further expand its engineering and technical ability, and carrying out the relevant science to detect.
Second, if near a comet or asteroid, can use a CCD stereoscopic camera and two spectrum apparatus on the surface of a comet or asteroid technique. And the third way is to fly back to the moon, like the same number controlled bump month.
The future progress
The goddess of the number three launch in 2013
The moon applied science chief scientist restrictive marketplaces explained the number, number two, three, "the three sisters" the basic task of the shoulder. China's lunar exploration engineering points "around the fall back to" three steps.
"Elder sister" charng-er's no.1: China's first lunar orbiter; For the first time the moon scientific exploration; Preliminary build moon exploration aerospace project system; For moon exploration following project accumulate experience.
"Two elder sister" charng-er number two: originally was "elder sister" backup star, after adaptability transformation, become a lunar probing the precursor of phase ii of the star, namely "the kid sister" charng-er of TanLuZhe number 3.
The goddess of the number two for no. 3 of the task, to improve the development of the antecedence test lunar exploration ability; Deepening the moon mission, scientific exploration of raising detection accuracy; Especially for the goddess of the moon number three alternative landing mission area for high precision for the subsequent imaging, moon exploration project for technical preparation, project experience accumulated.
"The kid sister" charng-er number three: has the Chinese detector first celestial bodies to realize the important task of landing (the lander and patrol on surface is a soft landing), and a large number of experiments on the moon.
"The kid sister" charng-er number three in 2013 is expected to go on standby.
The goddess of the show "the family" problem
The goddess of the number one on October 24, 2007 launched, in actual operation 494 days (including ring month 482 days) after completing the mission, on 1 March 2009 scheduled on controlled bump.
"Two elder sister" more "extraordinarily brave". Although only half a year, but the design life on October 1, 2010, after the successful launch of the world cover not only get the most for seven meters of the resolution on figure, and back to the rainbow bay area success better than the 1.5 m resolution of the image, complete engineering scientific goal set.
Its still surpass the task, perfect through the related development test. In the back, inside the moon, invisible, with the main engine drop rail, automatic control systems, navigation validation of the control system and the main engine of the synergy between.
At present, the number two is about 1.7 million miles (kilometers) from earth and Lagrange L2 point "dance". It's carrying the sun high-energy particle detector, the solar wind ion detector etc payload are like "space secret agent", seeking for the deep space mystery.
Three, "time" : the launch of a moon landing, automatic sampling the return to the surface of the moon, the moon will be gathering manipulator soil and rock sample to return to implement, to return to the moon is then samples to earth, research.
No comments:
Post a Comment