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China-Chang'e-5/Challenges
Beijing, China - Dec 2, 2020 (CCTV - No access Chinese mainland)
1. Various of screen showing moon surface
Beijing, China - Recent (CCTV - No access Chinese mainland)
2. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (starting with shot 1/partially overlaid with shot 3/ending with shot 4):
"As we can see from the TV that our lunar probe managed to touch down on a pretty level landing site. However there was still a fly in the ointment. We were going to drill a two-meter-deep hole in the initial stage as we planned for the whole drilling operation. However while the lander started drilling there, the radar echograms showed that there were several layers of slates underneath the landing site. So we were unable to go further down when we reached about one meter deep, and we could face greater risk and overrun the time if we did not stop immediately. Once we overrun the time, there would be not enough time for the next operations, we can't spend all the time just drilling."
++SHOT OVERLAYING SOUNDBITE++
3. Cutaways of reporter
++SHOT OVERLAYING SOUNDBITE++
Beijing, China - Dec 2, 2020 (CCTV - No access Chinese mainland)
4. Screen showing lander-ascender combination of Chang'e-5 probe drilling into lunar soil
Beijing, China - Recent (CCTV - No access Chinese mainland)
5. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (starting with shot 4/partially overlaid with shots 6-8/ending with shot 9):
"It was our job to create a best test environment for rendezvous and docking as well as for the ascender to take off from moon, which required key technologies. But in fact it took more time to come up with the fittest environment than to tackle the specific technologies, because it involved the construction of some new facilities, like some test platforms. You must create such an environment or you would be unable to guarantee that the mission is successful."
++SHOTS OVERLAYING SOUNDBITE++
6. Cutaways of reporter
Beijing, China - Dec 6, 2020 (CCTV - No access Chinese mainland)
7. Various of Chang'e-5 ascender docking with orbiter-returner combination
Beijing, China - Recent (CCTV - No access Chinese mainland)
8. Cutaway of reporter
++SHOTS OVERLAYING SOUNDBITE++
Beijing, China - Dec 6, 2020 (CCTV - No access Chinese mainland)
9. Various of screen showing Chang'e-5 ascender flying in space, docking with orbiter-returner combination
Beijing, China - Recent (CCTV - No access Chinese mainland)
10. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (partially overlaid with shots 11-12/ending with shot 13):
"After our lunar probe landed on the moon, it became the launching platform for the lunar probe ascender to take off. It had been quite challenging for us to design the process by both minimizing the spacecraft and enabling it to complete the entire mission. For example, our colleagues working on the control system conducted the simulation tests on the process of its returning from the lunar orbit back to the Earth tens of thousands of times."
++SHOT OVERLAYING SOUNDBITE++
Beijing, China - Recent (CCTV - No access Chinese mainland)
11. Cutaway of reporter
Beijing, China - Dec 3, 2020 (CCTV - No access Chinese mainland)
12. Animation showing Chang'e-5 ascender taking off
++SHOT OVERLAYING SOUNDBITE++
13. Footage showing Chang'e-5 ascender taking off
China's Chang'e-5 space probe had overcome multiple challenges before successfully collecting and delivering samples from the moon, including encountering unexpected difficulties in the drilling operation, said a scientist who worked with the project.
Hu Hao, chief designer of the third phase of China's lunar exploration program, said that not everything went as they expected in the probe's lunar mission, which means scientists had to make last-minute decisions on occasions that were decisive to the mission's success.
"As we can see from the TV that our lunar probe managed to touch down on a pretty level landing site. However there was still a fly in the ointment. We were going to drill a two-meter-deep hole in the initial stage as we planned for the whole drilling operation. However while the lander started drilling there, the radar echograms showed that there were several layers of slates underneath the landing site. So we were unable to go further down when we reached about one meter deep, and we could face greater risk and overrun the time if we did not stop immediately. Once we overrun the time, there would be not enough time for the next operations, we can't spend all the time just drilling," said Hu.
"It was our job to create a best test environment for rendezvous and docking as well as for the ascender to take off from moon, which required key technologies. But in fact it took more time to come up with the fittest environment than to tackle the specific technologies, because it involved the construction of some new facilities, like some test platforms. You must create such an environment or you would be unable to guarantee that the mission is successful," Hu continued.
The probe retrieved about 1,731 grams of samples from the moon, which have been handed over to the Chinese Academy of Sciences (CAS) on Saturday morning.
Scientists will carry out the storage, analysis, and research of the country's first samples collected from the moon.
"After our lunar probe landed on the moon, it became the launching platform for the lunar probe ascender to take off. It had been quite challenging for us to design the process by both minimizing the spacecraft and enabling it to complete the entire mission. For example, our colleagues working on the control system conducted the simulation tests on the process of its returning from the lunar orbit back to the Earth tens of thousands of times," said Hu.
Chang'e-5 is one of the most complicated and challenging missions in China's aerospace history. It is also the world's first moon-sample mission in more than 40 years.
The Chang'e-5 probe, comprising an orbiter, a lander, an ascender, and a returner, was launched on Nov. 24. The return capsule landed in Inner Mongolia Autonomous Region in the early hours last Thursday, bringing back the samples collected from the moon.
China-Chang'e-5/Challenges
Dateline : Recent/Dec 5/3/2, 2020
Location : China
Duration : 2'43
Beijing, China - Dec 2, 2020 (CCTV - No access Chinese mainland)
1. Various of screen showing moon surface
Beijing, China - Recent (CCTV - No access Chinese mainland)
2. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (starting with shot 1/partially overlaid with shot 3/ending with shot 4):
"As we can see from the TV that our lunar probe managed to touch down on a pretty level landing site. However there was still a fly in the ointment. We were going to drill a two-meter-deep hole in the initial stage as we planned for the whole drilling operation. However while the lander started drilling there, the radar echograms showed that there were several layers of slates underneath the landing site. So we were unable to go further down when we reached about one meter deep, and we could face greater risk and overrun the time if we did not stop immediately. Once we overrun the time, there would be not enough time for the next operations, we can't spend all the time just drilling."
++SHOT OVERLAYING SOUNDBITE++
3. Cutaways of reporter
++SHOT OVERLAYING SOUNDBITE++
Beijing, China - Dec 2, 2020 (CCTV - No access Chinese mainland)
4. Screen showing lander-ascender combination of Chang'e-5 probe drilling into lunar soil
Beijing, China - Recent (CCTV - No access Chinese mainland)
5. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (starting with shot 4/partially overlaid with shots 6-8/ending with shot 9):
"It was our job to create a best test environment for rendezvous and docking as well as for the ascender to take off from moon, which required key technologies. But in fact it took more time to come up with the fittest environment than to tackle the specific technologies, because it involved the construction of some new facilities, like some test platforms. You must create such an environment or you would be unable to guarantee that the mission is successful."
++SHOTS OVERLAYING SOUNDBITE++
6. Cutaways of reporter
Beijing, China - Dec 6, 2020 (CCTV - No access Chinese mainland)
7. Various of Chang'e-5 ascender docking with orbiter-returner combination
Beijing, China - Recent (CCTV - No access Chinese mainland)
8. Cutaway of reporter
++SHOTS OVERLAYING SOUNDBITE++
Beijing, China - Dec 6, 2020 (CCTV - No access Chinese mainland)
9. Various of screen showing Chang'e-5 ascender flying in space, docking with orbiter-returner combination
Beijing, China - Recent (CCTV - No access Chinese mainland)
10. SOUNDBITE (Chinese) Hu Hao, chief designer, third phase of China's lunar exploration program (partially overlaid with shots 11-12/ending with shot 13):
"After our lunar probe landed on the moon, it became the launching platform for the lunar probe ascender to take off. It had been quite challenging for us to design the process by both minimizing the spacecraft and enabling it to complete the entire mission. For example, our colleagues working on the control system conducted the simulation tests on the process of its returning from the lunar orbit back to the Earth tens of thousands of times."
++SHOT OVERLAYING SOUNDBITE++
Beijing, China - Recent (CCTV - No access Chinese mainland)
11. Cutaway of reporter
Beijing, China - Dec 3, 2020 (CCTV - No access Chinese mainland)
12. Animation showing Chang'e-5 ascender taking off
++SHOT OVERLAYING SOUNDBITE++
13. Footage showing Chang'e-5 ascender taking off
China's Chang'e-5 space probe had overcome multiple challenges before successfully collecting and delivering samples from the moon, including encountering unexpected difficulties in the drilling operation, said a scientist who worked with the project.
Hu Hao, chief designer of the third phase of China's lunar exploration program, said that not everything went as they expected in the probe's lunar mission, which means scientists had to make last-minute decisions on occasions that were decisive to the mission's success.
"As we can see from the TV that our lunar probe managed to touch down on a pretty level landing site. However there was still a fly in the ointment. We were going to drill a two-meter-deep hole in the initial stage as we planned for the whole drilling operation. However while the lander started drilling there, the radar echograms showed that there were several layers of slates underneath the landing site. So we were unable to go further down when we reached about one meter deep, and we could face greater risk and overrun the time if we did not stop immediately. Once we overrun the time, there would be not enough time for the next operations, we can't spend all the time just drilling," said Hu.
"It was our job to create a best test environment for rendezvous and docking as well as for the ascender to take off from moon, which required key technologies. But in fact it took more time to come up with the fittest environment than to tackle the specific technologies, because it involved the construction of some new facilities, like some test platforms. You must create such an environment or you would be unable to guarantee that the mission is successful," Hu continued.
The probe retrieved about 1,731 grams of samples from the moon, which have been handed over to the Chinese Academy of Sciences (CAS) on Saturday morning.
Scientists will carry out the storage, analysis, and research of the country's first samples collected from the moon.
"After our lunar probe landed on the moon, it became the launching platform for the lunar probe ascender to take off. It had been quite challenging for us to design the process by both minimizing the spacecraft and enabling it to complete the entire mission. For example, our colleagues working on the control system conducted the simulation tests on the process of its returning from the lunar orbit back to the Earth tens of thousands of times," said Hu.
Chang'e-5 is one of the most complicated and challenging missions in China's aerospace history. It is also the world's first moon-sample mission in more than 40 years.
The Chang'e-5 probe, comprising an orbiter, a lander, an ascender, and a returner, was launched on Nov. 24. The return capsule landed in Inner Mongolia Autonomous Region in the early hours last Thursday, bringing back the samples collected from the moon.
ID : 8170371
Published : 2020-12-21 14:45
Last Modified : 2020-12-21 19:24:00
Source : China Central Television (CCTV)
Restrictions : No access Chinese mainland
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