Chandrayaan 3 Landing Successful - चांद्रयान 3 चंद्रावर उतरलं...शेवटच्या 15 मिनिटांचा UNCUT थरार
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00:00 and we are receiving all this data in the mission operation complex room
00:05 through IDSN 32 which is continuously providing the data in the connection of landers.
00:12 Dear viewers, the pivotal power descent has begun
00:19 and the lander module is propelling towards the moon's surface along the intended trajectory.
00:26 (Video playing)
00:53 The lander velocity shall be brought down from 1680 m/s to 358 m/s.
01:01 The altitude will be brought down from 30 km to 7.4 km at the end of rough braking.
01:09 All this in the duration of 690 seconds or 11.5 minutes.
01:14 Currently, the laser inertial reference and accelerometer package, LIRAP, is aiding in the navigation.
01:22 (Video playing)
01:48 The lander module has travelled a distance of approximately 228 km.
01:54 The complete downrange that will be travelled during this phase shall be nearly 713.5 km.
02:07 (Video playing)
02:31 The pivotal power descent has begun and we can say that it has been very accurate and precise
02:37 in which the lander is bringing down its speed in an expected manner.
02:42 The altitude of the lander module will reduce from 7.4 km to 6.8 km
02:55 during the next phase which is going to be the attitude hold phase.
03:01 We can currently see that the altitude of the lander module is nearly 31 km.
03:09 (Video playing)
03:39 The mission operations team is analysing the data.
03:44 We can all see the seriousness and the concentration with which each and every parameter of the lander module is being analysed.
03:55 The performance so far seems to be nominal.
04:02 (Video playing)
04:29 During the entire descent, there is no ground intervention as the ALS has taken charge.
04:35 The preparation for today's event had started nearly 48 hours before
04:40 wherein various pre-selections and uplinking of parameters were done.
04:45 We can see that the vertical velocity of the lander module has been brought down.
04:52 It is continuously coming down.
04:57 And the ALS had already been initiated one hour before the scheduled time of the power descent start.
05:03 Following this, the throttle-able engine electronics module, the TECM, was switched on
05:09 and the lander was oriented to the favourable attitude.
05:14 (Video playing)
05:41 (Video playing)
06:01 (Video playing)
06:30 (Video playing)
06:54 (Video playing)
07:22 Currently, we are in the middle of the rough breaking phase.
07:25 (Video playing)
07:51 (Video playing)
08:04 (Video playing)
08:14 The altitude of lander from ground is currently 12 km, is currently 22 km,
08:21 which is again going to be coming down and that is expected.
08:26 For the viewers who have joined now, we are in the power descent phase
08:34 and we are in the rough breaking phase which is the first phase of the power descent.
08:38 We have currently travelled a downrange of 697 km.
08:43 And the downrange that has to be travelled during this phase is 713.5 km.
08:51 (Video playing)
09:12 At the same time, we can see the altitude of the lander is just 17.8 km from the moon surface,
09:22 which is going to be around 7.4 at the end of the rough breaking phase.
09:28 (Video playing)
09:34 After this phase, we will go towards the attitude hold phase,
09:42 where we will be expecting sensor update from the laser and car band altimeters.
09:49 (Video playing)
09:53 We can see the visualization of the lander module moving towards the moon surface.
10:01 The current altitude is nearly 15.2 km and the distance travelled is 754 km.
10:08 We can also see the image that the lander imager camera has been providing.
10:13 (Video playing)
10:30 Till now, the lander has completed its 75-80% journey.
10:37 (Video playing)
10:44 After the rough breaking and the attitude hold phase, we shall be having the fine breaking phase,
10:49 which will continue for nearly 3 minutes.
10:52 (Video playing)
10:56 This phase is being driven by the autonomous landing sequencer and there is no intervention from ground.
11:01 (Video playing)
11:05 Yes, Arushi. You can see on your screen that the current altitude is around 10 km from the moon surface.
11:18 (Video playing)
11:28 Yes, our Prime Minister, Mr. Narendra Modi has joined Johannesburg, South Africa to encourage us all.
11:39 (Video playing)
11:54 Yes, we are privileged to have with us Honorable Prime Minister of India, Mr. Narendra Modi,
12:00 who has joined us from South Africa's Johannesburg to encourage us.
12:06 (Video playing)
12:10 Yes, you can see that the lander has easily passed the attitude hold phase and now the fine breaking has begun.
12:24 (Video playing)
12:42 We can hear from the mission operations team that the sensors are performing nominally
12:50 and we are currently in the midst of the fine breaking phase which is going to continue for 3 minutes
12:55 and the altitude is going to be reduced to nearly 800 m at the end of this phase.
13:02 (Video playing)
13:04 Yes, as Arushi said, after 3 minutes the height of the lander will be around 800 m vertically
13:14 and we will have to hear the horizontal, vertical and even downrange of the lander.
13:21 (Video playing)
13:23 We can see the visual of the lander module and we can see that the downrange travelled is nearly 831 km.
13:32 (Video playing)
13:46 Yes, you can see on your screen that the height of the lander has reduced to 3 km from the moon's surface.
13:55 (Video playing)
14:00 We are very close to the moon's surface, nearly 2.6 km as we can see.
14:07 (Video playing)
14:30 Yes, you can see that the height of the lander is nearly 1 km.
14:38 (Video playing)
14:46 We are nearing the final phase of the power descent
14:51 which is going to be the vertical descent phase or the local navigation phase.
14:59 (Video playing)
15:28 Lot of applause indicates that till now the performance has been nominal.
15:35 We are in the vertical descent phase 1.
15:39 (Video playing)
15:41 The altitude is being brought down from 800 m and we are nearing and approaching the lunar surface.
15:50 (Video playing)
15:53 Yes, you can see on your screen that the height of the lander is continuously decreasing.
16:00 We are just above the landing site and the altitude is nearly 600 m.
16:07 During this phase, after reaching the altitude of 150 m, the lander will hover for 20 to 22 seconds.
16:20 (Video playing)
16:49 Yes, you can see on your screen that the path has been decided and the lander is following it.
16:57 We have come down to less than 200 m.
17:02 (Video playing)
17:09 Now we can see that we are at an altitude of about 150 m above the moon.
17:17 (Video playing)
17:21 We are approaching the vertical descent phase 2,
17:26 which will have the lander module hovering at nearly 150 m above the lunar surface.
17:33 (Video playing)
17:46 (Video playing)
17:48 Yes, if you look carefully, the altitude is decreasing again.
17:53 We are at an altitude of about 135 m.
17:58 (Video playing)
18:07 As expected, the retargeting is going on and this is a very good signature for the lander.
18:15 Now you can see that the height of the lander is about 65 m.
18:22 (Video playing)
18:29 Currently only two engines are now being fired and we are nearly at zero velocity, vertical and horizontal.
18:39 We were hovering and now we are approaching the moon's surface.
18:44 (Video playing)
18:58 We can see the Honorable Prime Minister, Shri Narendra Modi ji, who is here to encourage us
19:05 and he is critically looking at the visuals.
19:11 (Video playing)
19:18 (Applause)
19:29 People are applauding. Let us all wait to hear from the Secretary Department of Space and Chairman ISRO, Shri S. Somnath.
19:40 (Video playing)
19:59 The hard work of the entire ISRO community has come to fruition.
20:06 (Applause)
20:20 Honorable Prime Minister, greetings.
20:24 Sir, we have achieved soft landing on the moon. India is on the moon.
20:31 (Applause)