Chandrayaan-3: Will ISRO'S Pragyan rover work even after the mission life of 14 days?
India has finally achieved what no other nations have. The third lunar mission of India made a successful historic landing on the southern polar region of the lunar surface just a while back. With this momentous and successful landing, India has now become the first country in the world to have soft-landed on the moon’s southern polar region. This is also the first time that a rover has been deployed in the southern pole of the lunar region. The entire country is beaming with pride and jubilation post this tremendous feat by ISRO.
#Chandrayaan3landing #Chandrayaan3 #Chandrayaanmission
~PR.153~HT.96~
#Chandrayaan3landing #Chandrayaan3 #Chandrayaanmission
~PR.153~HT.96~
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NewsTranscript
00:00 After Chandrayaan 2 failure, now Janki Nisro going to land on Chandrayaan 3.
00:05 So what was the difference in both?
00:06 Only 4 main engines in Chandrayaan 3, whereas in Chandrayaan 2 we had 4 main engines and
00:12 additional main engine at the center of the lantern.
00:14 So the additional one was removed in Chandrayaan 3 right now.
00:18 Can you explain the last 15 minutes of terror?
00:23 Why does it call it 15 minutes of terror?
00:26 Yeah, the last 15 minutes, the Chandrayaan 3 lander will have power descent before 15 minutes.
00:33 From there, the rough breaking starts.
00:35 So all the 4 engines will be firing.
00:37 From the moment the 2 engines get fired off, it's called fine breaking phase.
00:41 How do you see the race between the countries India, China, America and Russia's moon missions?
00:51 So the main reason is the detection of water in moon's south poles.
00:56 Because if there is water in moon's south poles, then there is a reason we can have permanent moon bases.
01:05 How did you find the debris of Chandrayaan 2?
01:11 So Chandrayaan 2, after the Chandrayaan 2 had crash landed on the particular site,
01:18 NASA released some publicly images from the LRO orbiter.
01:21 So what I did was I searched through those images inch by inch, pixel by pixel on that particular 2x2 km area.
01:28 And after that, I was able to find a tiny white speck,
01:31 which was not found in any of the older images that was taken in July or June.
01:37 So after comparing the images and confirming, I did reach out to a couple of LRO scientists as well as NASA scientists on this.
01:44 And after they also verified that in the subsequent images of LRO on October and November.
01:51 And based on the tip, whatever I gave, they searched around in the surrounding areas.
01:56 And they were able to find the Chandrayaan 2 engine as well as the other debris that was scattered across.
02:03 So based on that, I think they appreciated me for finding the debris.
02:08 I think as far as Chandrayaan 2 is concerned, though it's sad, it's kind of a sweet achievement,
02:18 not only for me, but also for the common citizens, I would say so.
02:23 What was the NASA's first reaction when you found out the debris of Chandrayaan 2?
02:27 So the first response was usually like cold.
02:33 So I actually reached out to LRO scientists because LRO is different from NASA.
02:38 So they were initially skeptical about whatever I found out in October.
02:43 But after that, I again reached out to them a couple of times in October and November.
02:47 And the third time was lucky because they did find, okay, this might be a debris they thought.
02:53 And they further verified and found that the debris was actually scattered across the surface.
02:59 First, they were refusing to believe that the debris would be something like this because they were looking at
03:04 the debris might be something like very scattered across like the other landers which crash landed on moon.
03:11 So what exactly happened to the Chandrayaan 2 landers? Why did it crash?
03:18 So the reason might be something went wrong in the fine breaking phase.
03:22 The rough breaking phase, it all went successful without any issues.
03:26 In the fine breaking phase, there were some errors in the fine breaking itself due to which the errors got accumulated
03:32 and the system was not able to overcome or rectify those errors.
03:36 So the engine was supposed to fire for additional amount of seconds, but it didn't fire after the fine breaking was over.
03:43 So that's the main reason for crash landing of Chandrayaan 2 lander.
03:48 So even this was denoted by Ishwar Chandran in one of the YouTube interviews he gave a few weeks ago.
03:56 So this was like a similar reason like he also gave the same reason like there were errors which were,
04:01 which was failed to rectify by the lander. So that's the main reason behind the failure of the lander itself.
04:08 Okay. So after Chandrayaan 2 failure, now Ishwar is going to launch Chandrayaan 3.
04:14 So what was the difference in both?
04:17 So the main difference between Chandrayaan 2 and Chandrayaan 3 is,
04:21 so we have got only four engines, four main engines in Chandrayaan 3,
04:26 whereas in Chandrayaan 2, we had four main engines and additional main engine at the center of the lander.
04:31 So the additional one was removed in Chandrayaan 3 right now.
04:35 And we also removed the payload, some of the payloads and the payloads have been replaced by more cameras.
04:42 So we have got something like eight cameras, lander detection cameras,
04:47 as well as hazard avoidance cameras like this.
04:52 We have got eight different cameras in eight different areas of Chandrayaan 2 lander because,
04:57 and also we have got a lot of sensors in Chandrayaan 2 lander because this is like the sensors,
05:04 even if one sensor goes wrong, the other sensor will give the correct data,
05:07 which will help the system to land the lander correctly without any issues.
05:11 So that's the major difference.
05:13 So we have got fewer payloads, but more sensors and cameras to land successfully on board.
05:19 Can you explain the last 15 minutes of terror? Why does it call it 15 minutes of terror?
05:25 Yeah, the last 15 minutes, like the Chandrayaan 3 lander will have power descent like before 15 minutes.
05:34 From there, the rough breaking starts.
05:36 All the four engines will be firing. And once it comes to a certain distance,
05:41 the four engines out of those four engines, two engines will be shut off.
05:45 Only two engines will be firing. From the moment the two engines gets fired off,
05:49 it's called fine breaking phase, where it will reduce some more distance.
05:53 And at a distance of one kilometer to 800 meters from the lunar surface,
05:58 it will overhold the surface and see like where it can land exactly.
06:02 And the system then again, it will initiate a power descent slowly and around 100 meters or under 250 meters.
06:10 It will again search for the landing site to land, like what is the best site to land based on the images that has been already stored in the lander.
06:18 And once it selects a site, it will then begin slowly, a very slow descent.
06:24 And once it lands, it will switch off the engines.
06:27 How do you see the race between the countries, America, Russia, India and China on continuous moon missions?
06:33 So the main reason is the detection of water in moon's south poles,
06:38 because if there is water in moon's south poles, then that is the reason we can have permanent moon bases,
06:47 where we can have like we can travel to other planets also, like we can have a moon base in South Pole.
06:54 And from that, we can let a spacecraft mission go to Mars and other planets also.
06:58 So that's the main reason we can competition between different countries.
07:02 So this is just similar to like where we are having stations in Antarctica.
07:06 Like if we have a moon base on moon, then we can communicate directly.
07:11 We can have deep space telescopes and we can use it for a lot of other purposes also, which will be beneficial for humankind.
07:19 So that's the main reason behind different countries are competing for a pie of moon,
07:24 that is particularly moon's south pole, because the research shows that it has large amount of water ice stored in moon's south pole.
07:32 So that's the main reason behind the competition.
07:35 Thank you for your comments.
07:37 Thanks.