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CHINA NATIONAL SPACE ADMINISTRATION 中国国家航天局CHINA NATIONAL SPACE ADMINISTRATION 中国国家航天局

——ChinaChina’’s Lunar s Lunar Exploration ActivitiesExploration Activities

Chang’e Program

China National Space Administration

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Lady Chang’e flying to the Moon

——An Ancient Chinese Legend

The legend of Chang’e flying to the moon reflects the Chinese people’s desire to explore the unknown world .

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ChangChang’’e Programe Program——ChinaChina’’s Lunar Exploration Programs Lunar Exploration Program

Chang’e Program is China’s lunar exploration program organized by CNSA. It will realize Chinese people’s dream of thousands of years to fly to the moon with the desire of Lady Chang’e flying to the moon.

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Milestones in ChinaMilestones in China’’s Lunar Exploration Activitiess Lunar Exploration Activities

• In 1991，Chinese space experts proposed lunar exploration program and undertook some advanced research.

• In 1998，CNSA started to define the program.

• In 2001，the White Paper on China’s Space Activities defined the deep space exploration which emphasized on lunar exploration.

• On Jan.23,2004, lunar orbiting project was approved which was the first step for China’s lunar exploration.

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To promote the innovation and development of basic scienceTo lay technological foundation for the future deep space explorationTo promote the international cooperation in space and improve space technologyTo make contributions to the exploration of unknown word for human beings

The Aims Of ChinaThe Aims Of China’’s Lunar Exploration Programs Lunar Exploration Program

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China’s lunar exploration program includes three phases: orbiting the moon, soft landing on the moon surface and roving, sampling and returning to the earth.

The General Concept For China’ Lunar Exploration

China’s Exploration Program

Lunar Orbiting Soft Landing and Roving Sampling and Returning

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First Stage: Lunar Orbiting ExplorationFirst Stage: Lunar Orbiting Exploration

Scientific Objects:

To obtain three-dimensional images of lunar surfaceTo analyze the content and distribution of useful elements on lunar surfaceTo investigate lunar soilTo explore the environment between the earth and the moon

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Lunar Orbiting Project Including Five Systems

TT&C System

Lunar Exploration

Satellite

Launch vehicle system

Ground Application

System

Launch System

Lunar Orbiting Exploration Project

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DFH-3 platform, 3-axis stabilized attitude control, pointing to the moonOrbital Altitude:200+25km Inclination:90±5 degree Life Span≥1year

Lunar Exploration Satellite (Chang’e-1)

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1.CCD Camera2.Laser Altimeter

3. Optical Imaging Spectrometer4. γ/ X Ray Radiometer

5.Microwave Detector

6.Solar High Energy Particle Detector7.Low Energy Lonic Detector

To obtain 3-dimensional images of lunar surface

To detect elements and substance

To measure the thickness of the lunar soil

To investigate the environment between the moon and the earth

Seven

Paylo

ads O

nb

oard

Payloads and Their Performances

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1.CCD Camera2.Laser Altimeter

To obtain 3-dimensional imagers of lunar surface

CCD Camera Laser Altimeter

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3. Optical Imaging Spectrometer

4. γ/ X-Ray Radiometer

To detect elements and substance on the moon surface

Optical Imaging Spectrometer γ/ X -Ray Radiometer

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5. Microwave DetectorTo measure the thickness of the lunar soil

Microwave Detector

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6.Solar High Energy Particle Detector7.Low Energy Ionic Detector

To investigate the environment between the moon and the earth

Solar High Energy Particle Detector

Low Energy Ionic Detector

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Launch Vehicle

The LM-3A launch vehicle has successfully flight for many times. Its launch capacity is 2600kg in GTO.

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Launch SiteLaunch Site

Xichang Satellite Xichang Satellite Launch CenterLaunch Center

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The tracking, telemetry and remote control mission for Chang’e Project can be fulfilled through rebuilding and forming the network based on China’s existing TT&C infrastructure, S-band TT&C network and VLBI astronomical measurement network.

TT&C System

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Ground Ground Application SystemApplication System

Chang’e-1 Satellite

Operation

ManagementCenter

Data Obtaining

Center

Data Processing and

Research Center

The Application System involves the management of scientific exploration operation, data obtaining and processing as well as scientific research

and distribution.

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Flight Trajectory for Lunar Orbiting Project

The satellite was put into elliptical orbit by the

carrier. After separating from the launcher, the

satellite will finally enter circumlunar orbit and carry

out the missions by using its propulsion system via

phasing orbit , trans-lunar trajectory and lunar

capture trajectory.

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3-D S

imu

lation

Dem

on

stration

for

Flig

ht T

rajectory

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Development Status

• All the work in the Project is going on well as scheduled.

• The prototype of the satellite system is being developed.

• The launch vehicle is under construction as planned.

• TT&C system, launch site system and application system are beingdeveloped, rebuilt and constructed as scheduled.

• The whole system will be able to move to the launch site in 2007.

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1.To investigate and study the lunar feature and lunar geology of the landing area

2.To investigate inner lunar structure

3.To monitor sun-earth-moon space environment and to conduct the moon-based astronomy observation

Scientific Objectives

The Second Stage：Soft Landing and Roving

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Goals for The Second Stage

To make breakthroughs in soft landing, automatic roving and other related technology, including:

earth-moon flight, soft landing, lunar rover’s automatic surveying and detecting, remote control, tele-analysis, high data rate TT&C and

communications and so on；

To develop and launch soft lander and lunar rover and other related scientific detectors.

To establish basic lunar exploration system, including:establishing deep space TT&C network, improving ground system so

as to form basic coordinated lunar exploration engineering system.

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TT&C System（Deep Space TT&C

Network to be established）

Lunar Detector（Lander+Rover）

New Generation

Launch Vehicle

Ground Application

System

Launch Site（Adapting to new generation launch

vehicle）

The System Organization of Lunar Exploration in The Second Stage

The System Organization of The Second Stage

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•• To complete lunar exploration To complete lunar exploration engineering system and provide the engineering system and provide the base for the future deep space base for the future deep space exploration activitiesexploration activities

The Third Stage: Sampling and ReturningThe Third Stage: Sampling and Returning

•• To make breakthroughs in automatic sampling and returning flightTo make breakthroughs in automatic sampling and returning flighttechnology, including lifting off from the moon, the design of rtechnology, including lifting off from the moon, the design of returning eturning trajectory, guidance and navigation and control technology, reentrajectory, guidance and navigation and control technology, reentry and try and retrieving technology, the design and control technology of the retrieving technology, the design and control technology of the sampling sampling device, high accurate analysis technology of the lunar sample andevice, high accurate analysis technology of the lunar sample and so d so on on

•• To develop a small capsule for sampling and returning in order tTo develop a small capsule for sampling and returning in order to o collect sample and return to the earthcollect sample and return to the earth

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• To detect and investigate the landing area

• To sample and return, to systematically study the lunar sample in petrology, mineralogy isotope lunar geology and lunar chemistry;to further the research on the origin and evolution of the earthand the moon based on the analysis data of the substance composition on the lunar surface

Scientific Objects

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EndingEnding

As a space-faring country, China will be active in humanity’s exploration in unknown space. China is willing to conduct cooperation equally and friendly with the countries all over the world who are welcome to participate in China’s lunar exploration program, contributing to humanity’s long-rang development and promising future.

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Thank you！

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