From PSLV to Chandrayaan: 60 years of India's space programme | Ep 92
News Brake - The ExplainerDecember 19, 202300:16:54

From PSLV to Chandrayaan: 60 years of India's space programme | Ep 92

How India's space programme carved a niche for itself in 60 years

The Indian space programme, which began on November 21, 1963 with the launch of a Nike Apache rocket from Thumba, recently celebrated 60 years. Dr V R Lalithambika, distinguished scientist and former Director of the Directorate of the Human Spaceflight Programme at ISRO speaks about the journey of India's space programme in the past 60 years. 

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00:00:04

Speaker 1: The Indian Space program began on November 21st, 1963 with




00:00:09

Speaker 1: the launch of the Nike Apache rocket from Tumba. The




00:00:14

Speaker 1: launch was an international effort under the United Nations. The




00:00:18

Speaker 1: rocket came from the US, the sodium vapor payload from




00:00:21

Speaker 1: France and the range clearance from an M four helicopter




00:00:25

Speaker 1: from the then Soviet Union.




00:00:28

Speaker 1: The rocket and payload engineers were Indians. We have come




00:00:32

Speaker 1: a long way since today, India's space program has reached




00:00:36

Speaker 1: coveted heights under the leadership of the Indian Space Research




00:00:40

Speaker 1: Organization




00:00:42

Speaker 1: with Chandra and three. We have become the first nation




00:00:45

Speaker 1: to land on Moon's South Pole with Ghanian. We are




00:00:48

Speaker 1: navigating new heights in human spaceflight capability and with Aditya




00:00:53

Speaker 1: El One, we are navigating the mysteries of the Sun.




00:01:05

Speaker 1: Hi, you're listening to on Manorama Explainer podcast newsbreak, a




00:01:10

Speaker 1: weekly show that breaks down news in a clutter free manner.




00:01:13

Speaker 1: This is Harita Benjamin and today's episode is dedicated to




00:01:18

Speaker 1: the 60 years of the Indian Space program.




00:01:22

Speaker 1: Today we have with us, Doctor Wear LGA, distinguished scientist




00:01:27

Speaker 1: and former director of the Directorate of Human Space Flight




00:01:30

Speaker 1: program at the Ira Specialist in advanced launched vehicle technology.




00:01:36

Speaker 1: Dr Laliga has worked extensively on various ISO rockets, particularly




00:01:42

Speaker 1: the PSLV. She has also led the space agency's prestigious project,




00:01:47

Speaker 1: the Gagan mission.




00:01:48

Speaker 1: She was recently conferred with the top French civilian honor




00:01:53

Speaker 1: of Chevalier de la Legio Donne. So, congratulations, Doctor Laam Bear.




00:01:59

Speaker 1: Thank you so much for joining us today. Thank




00:02:02

Speaker 2: you, Harita.




00:02:03

Speaker 2: I look forward to our conversation.




00:02:05

Speaker 1: All right. So, uh it's been 60 years since the




00:02:08

Speaker 1: launch of uh Indian space program in 1963. And around




00:02:12

Speaker 1: the same time, you were also taking your baby steps




00:02:15

Speaker 1: a few miles away from Tumba, right? And uh you




00:02:18

Speaker 1: have joined VSC around 25 years later and also became




00:02:23

Speaker 1: a part of Isro thereafter. Now, if you are to




00:02:26

Speaker 1: look back, what do you think of the growth of




00:02:28

Speaker 1: uh Indian Space program and what has it achieved so




00:02:32

Speaker 1: far




00:02:33

Speaker 2: as you rightly put it? I also grew up along




00:02:36

Speaker 2: with the Indian Space program. Initially, we were just launching




00:02:40

Speaker 2: sounding rockets. We didn't have our own space infrastructure at




00:02:44

Speaker 2: that point of time. But over the years slowly, we




00:02:47

Speaker 2: have built up our launch vehicle capability




00:02:51

Speaker 2: from the PSLV to the GSLV Mach three, which is




00:02:55

Speaker 2: a really heavy lift launch vehicle.




00:02:57

Speaker 2: And we have achieved our founding father, Doctor Vikram Sarabhai




00:03:03

Speaker 2: vision to benefit space for the common man. And we




00:03:07

Speaker 2: have moved beyond that. So now we have a wide




00:03:10

Speaker 2: variety of missions, both the scientific missions, the space exploration




00:03:14

Speaker 2: missions and a wide variety of applications.




00:03:18

Speaker 2: And we have the launch infrastructure




00:03:22

Speaker 2: which is uh the Ricotta and we also have a




00:03:27

Speaker 2: large number of space assets which we are maintaining, right?




00:03:31

Speaker 2: And in addition to all this, we are able to




00:03:33

Speaker 2: carry out launches for other countries as well.




00:03:37

Speaker 2: So definitely the Indian Space program has reached a a




00:03:40

Speaker 2: level of maturity and there are now a lot of




00:03:44

Speaker 2: friends who are also coming in and uh this is




00:03:47

Speaker 2: going to become even more vibrant in the US,




00:03:51

Speaker 1: right? Uh So I know this is gonna be a




00:03:53

Speaker 1: difficult question. But if you were to pick a favorite




00:03:56

Speaker 1: moment in India space history, what would it be and




00:03:59

Speaker 1: why




00:04:00

Speaker 2: you are right? It is definitely a difficult question. Uh




00:04:04

Speaker 2: Probably




00:04:05

Speaker 2: one would be uh remembering or the most memorable




00:04:10

Speaker 2: instance would be where one is directly associated with. So




00:04:13

Speaker 2: I will pick two such a very challenging uh events.




00:04:17

Speaker 2: The first one which I would say is the first




00:04:20

Speaker 2: launch of the GSLD Mach three. Now, it's called the




00:04:23

Speaker 2: LVM three. So that is our heavy lift launch vehicle,




00:04:26

Speaker 2: which I was mentioning at that time, the cryogenic stage




00:04:30

Speaker 2: was uh in just getting developed. So we had the




00:04:33

Speaker 2: first experimental mission, it was called an LVN three X




00:04:37

Speaker 2: mission




00:04:37

Speaker 2: where we had the first two stages. And on top,




00:04:40

Speaker 2: we had another mission that was the crew module reentry




00:04:45

Speaker 2: experiment and it was called a care mission. So that




00:04:49

Speaker 2: was also a precursor to the Human Space program.




00:04:52

Speaker 2: So it was a it was a resounding success and




00:04:56

Speaker 2: it gave so much of satisfaction to all of us




00:04:58

Speaker 2: who were involved, both the mari part and also the




00:05:02

Speaker 2: care mission where the module was brought down and it




00:05:05

Speaker 2: splashed down safely in the ocean. And gave us a




00:05:08

Speaker 2: lot of confidence on the external uh characteristics and the




00:05:13

Speaker 2: thermal characteristics of the crew module,




00:05:15

Speaker 2: which uh definitely that experience has come in very useful.




00:05:19

Speaker 2: Later on. I would also like to mention a different




00:05:21

Speaker 2: class of launch vehicles that is the reusable launch vehicles.




00:05:25

Speaker 2: The shape is like an like an airplane. So we




00:05:29

Speaker 2: had a, we had a demonstrator and this is really




00:05:32

Speaker 2: a technology for the future. And that also was a




00:05:35

Speaker 2: great where the control is done through the aerodynamic surfaces




00:05:38

Speaker 2: as in an aircraft.




00:05:41

Speaker 2: These are the two ones which I can not right now,




00:05:44

Speaker 1: right? Uh So, I mean, obviously there are also perks




00:05:47

Speaker 1: and you know, there are also disappointments, right? Uh So




00:05:50

Speaker 1: in your long career, if you were to uh you know,




00:05:53

Speaker 1: pick out an upsetting or disappointing moment, then what would




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Speaker 1: it be?




00:05:56

Speaker 2: So the first thing I would like to say is




00:05:59

Speaker 2: that as a scientist, you know,




00:06:02

Speaker 2: uh even something which uh is is upsetting or disappointing




00:06:08

Speaker 2: that those emotions are uh very momentary, we immediately look




00:06:12

Speaker 2: at it as a great challenge.




00:06:14

Speaker 2: So definitely those are the moments where we had the




00:06:17

Speaker 2: failures starting from the first PSLV failure, then we have




00:06:22

Speaker 2: had in GSLV, then we had in Chandra and two.




00:06:26

Speaker 2: So there are moments which are very uh potentially very upsetting.




00:06:31

Speaker 2: But generally as scientists and as engineers, what we focus




00:06:35

Speaker 2: on is uh what




00:06:37

Speaker 2: could have gone wrong, why it has gone wrong? How




00:06:41

Speaker 2: do we rectify it? How do we ensure that it




00:06:43

Speaker 2: never happens again? So we look at it as a




00:06:46

Speaker 2: huge learning experience and we emotionally distance ourselves from these




00:06:51

Speaker 2: feelings while we go ahead and do what needs to




00:06:54

Speaker 2: be




00:06:54

Speaker 1: done. I think that's something a message which we should




00:06:57

Speaker 1: take in life as well. You know, everything should be




00:06:59

Speaker 1: a stepping stone, even mistakes, right? So uh so nice




00:07:03

Speaker 1: of you to take it that way, ma'am




00:07:06

Speaker 1: anyway. Uh So moving on uh another aspect which has




00:07:09

Speaker 1: been highlighted by the Western media and other space agencies




00:07:13

Speaker 1: like the NASA, for instance, is that uh our top




00:07:17

Speaker 1: notch space programs are always executed with a limited budget.




00:07:21

Speaker 1: So uh did you ever feel that, you know, the




00:07:24

Speaker 1: budget constraint is holding back when it comes to innovation




00:07:27

Speaker 1: uh or has it motivated you to become a more innovative?




00:07:33

Speaker 2: See Harita, we are a developing country and when our




00:07:37

Speaker 2: program was starting out, I would say we were just




00:07:41

Speaker 2: becoming a developing country now, we are much better. So




00:07:45

Speaker 2: we have always been conscious that we are using our taxpayers'




00:07:49

Speaker 2: money and the taxpayer has with the maximum benefit out




00:07:52

Speaker 2: of the money which is given to us.




00:07:54

Speaker 2: So the money which is given to us is within




00:07:57

Speaker 2: the constraints in the country. So it has always, uh




00:08:02

Speaker 2: I would say it has pushed us to become more




00:08:05

Speaker 2: and more innovative and the frugal engineering, all those terms




00:08:08

Speaker 2: you hear, we have learned to make optimal use of




00:08:12

Speaker 2: whatever resources we have,




00:08:16

Speaker 1: right? So uh you were, you just mentioned that you




00:08:18

Speaker 1: were an integral part of PSLV. And this is one




00:08:21

Speaker 1: of the, you know, most uh wonderful moments which you




00:08:24

Speaker 1: had in your career. So uh could you share your




00:08:27

Speaker 1: experience working with the same? And you know, from the, the,




00:08:30

Speaker 1: the first uh the problematic launch uh to the successful




00:08:35

Speaker 1: missions which came and uh could you probably, you know,




00:08:38

Speaker 1: share your experience uh about the PSLV experience?




00:08:43

Speaker 2: Certainly when I joined in 1988 the PSLV, the overall




00:08:50

Speaker 2: structure of the vehicle was finalized. So it would have




00:08:53

Speaker 2: solid stages, it would have two liquid stages and it




00:08:57

Speaker 2: would have strap strap ons all that was finalized. Uh




00:09:00

Speaker 2: But I had specialized in control design and uh we




00:09:04

Speaker 2: had a small team working on the control design of




00:09:07

Speaker 2: the




00:09:08

Speaker 2: uh that's the autopilot design, it's called of the PSLD.




00:09:11

Speaker 2: And the PSLD vehicle is very different from the earlier




00:09:14

Speaker 2: one which came, which was the A SL which is




00:09:16

Speaker 2: an all, all solid rocket. So there were challenges in




00:09:19

Speaker 2: understanding the system in modeling it and then evolving what




00:09:24

Speaker 2: works for uh this system.




00:09:27

Speaker 2: And we had also one of the disappointments that you




00:09:30

Speaker 2: are mentioning, which actually was a great learning experience in




00:09:33

Speaker 2: the first launch of the PSLB, which happened in nine




00:09:37

Speaker 2: 93. So there was a failure and uh that was




00:09:41

Speaker 2: traced to the onboard software and that software happened to




00:09:44

Speaker 2: be the software responding to the control system. And uh




00:09:48

Speaker 2: we learned such a lot from that, the importance of




00:09:52

Speaker 2: software testing by itself. And it was not just the failure,




00:09:56

Speaker 2: it didn't happen, right in the beginning, it was after




00:09:58

Speaker 2: the second stage. And we saw there were other anomalies




00:10:02

Speaker 2: in the other, even in the second stage would not




00:10:05

Speaker 2: have caused mission failure, but definitely the modeling uh uh




00:10:09

Speaker 2: knowledge which we had that also got really augmented by this.




00:10:13

Speaker 2: We built up an entire system to make sure that




00:10:16

Speaker 2: there would not be any such failures for the PSLD.




00:10:20

Speaker 2: And the very next year, we came back with 100%




00:10:22

Speaker 2: successful launch.




00:10:24

Speaker 2: And uh since then PSLB has not looked back, it's




00:10:27

Speaker 2: called the work of this kind of versatile. And then




00:10:32

Speaker 2: it was really a stepping stone to the the higher




00:10:35

Speaker 2: lift capability launch vehicle and it continues to be there




00:10:39

Speaker 2: very much in our uh arena of launch vehicle,




00:10:43

Speaker 1: right. So now let's talk about Gian, uh how far




00:10:46

Speaker 1: ahead is the project now and you've been an integral




00:10:49

Speaker 1: part of it since the beginning? Right?




00:10:51

Speaker 1: So, uh when can we expect to see its completion?




00:10:53

Speaker 1: Could you elaborate a bit on the project?




00:10:57

Speaker 2: Uh I will, I will just tell you see that




00:11:00

Speaker 2: uh this is a program, it's a national program. It's a,




00:11:04

Speaker 2: it's not just this Rules program, it's a national program.




00:11:07

Speaker 2: It's being undertaken by our country for the first time.




00:11:10

Speaker 2: We have had no experience of uh




00:11:12

Speaker 2: I taking a human being to space and then uh




00:11:15

Speaker 2: maintaining him or her there safely and bringing them back




00:11:19

Speaker 2: to earth. We didn't, we don't have any experience. So




00:11:23

Speaker 2: we need, we need to that knowledge. It's a gap




00:11:26

Speaker 2: in our knowledge. So that's what we are trying to




00:11:28

Speaker 2: achieve with Gina. But uh since humans are involved, uh




00:11:33

Speaker 2: there are so many new things which we need to learn,




00:11:36

Speaker 2: we need to have human centric products. We need to




00:11:38

Speaker 2: make sure that safety.




00:11:40

Speaker 2: Anyway, we have the mission reliability, but this is a




00:11:43

Speaker 2: safety critical mission. It's not the objective of attaining a




00:11:48

Speaker 2: particular orbit. It is to make sure that humans are




00:11:51

Speaker 2: always safe.




00:11:52

Speaker 2: So there are robot capabilities which are built in. So




00:11:55

Speaker 2: all these need to be tested. And I'm sure that




00:11:58

Speaker 2: you would have yourself seen in the newspapers that there are,




00:12:01

Speaker 2: there have been a series of tests, the parachutes have




00:12:04

Speaker 2: been tested to a certain extent. Then the abort system,




00:12:07

Speaker 2: one test was there all this you would have seen




00:12:10

Speaker 2: we had a test for TV D one and there




00:12:13

Speaker 2: are a series of such tests in which will give




00:12:16

Speaker 2: us the




00:12:16

Speaker 2: confidence to go ahead. And even once we have that confidence,




00:12:21

Speaker 2: what we would do would not be to send the




00:12:23

Speaker 2: human being straight away, we will be sending Andrew B




00:12:26

Speaker 2: which will be fully instrumented and which, which will also




00:12:29

Speaker 2: carry the scientific payouts. Keeping in mind not to waste




00:12:33

Speaker 2: a single rupee of the taxpayers' money. Even those launches




00:12:37

Speaker 2: have to have further objectives, not just to give confidence.




00:12:41

Speaker 2: Ok. So, so that will, that will happen and that




00:12:45

Speaker 2: is slated for this coming year. And uh if once




00:12:49

Speaker 2: that is 100% OK, you know, then you get the




00:12:51

Speaker 2: conference and then uh you will go ahead with the




00:12:54

Speaker 2: human




00:12:54

Speaker 1: lunch. So uh in 2024 we are expecting uh the




00:12:58

Speaker 1: final test to happen and maybe uh the next next year,




00:13:02

Speaker 1: we could uh see the human




00:13:04

Speaker 1: uh element coming in.




00:13:06

Speaker 2: Yes, I know right now I have a superannuated from




00:13:10

Speaker 2: Israel but uh just we, we, I think this has




00:13:13

Speaker 2: come even in the newspapers that we are planning to




00:13:16

Speaker 2: have the first hand road mission in the first half




00:13:19

Speaker 2: of uh next year. And depending on its success, depending




00:13:23

Speaker 2: on its success, the others will follow. Ok.




00:13:28

Speaker 1: Yes. OK. Uh So uh to wind up, I have




00:13:31

Speaker 1: two questions. One is uh the scientist who has inspired




00:13:35

Speaker 1: you the most uh in all these years because, uh




00:13:39

Speaker 1: uh you know, it's, it's difficult because you've been a




00:13:41

Speaker 1: part of the entire process and, you know, you might




00:13:43

Speaker 1: have come across a, a great many scientists in different fields.




00:13:48

Speaker 1: So if you were to choose one person who has




00:13:50

Speaker 1: inspired you uh in India or elsewhere, uh who would




00:13:54

Speaker 1: it be?




00:13:56

Speaker 2: Actually, it's not a difficult question for me is a




00:13:58

Speaker 2: very clear answer. It is Marie Curie.




00:14:01

Speaker 1: Oh really? OK.




00:14:03

Speaker 2: Yeah. She was in the 19th century and she lived




00:14:08

Speaker 2: in a, in a time where women were not having




00:14:11

Speaker 2: the kind of respect they have. Now, in spite of that,




00:14:15

Speaker 2: she won not one Nobel Prize but two,




00:14:18

Speaker 2: she became the first woman to win a Nobel Prize.




00:14:21

Speaker 2: She became the first person to have two Nobel Prizes




00:14:25

Speaker 2: and the only person to win two Nobel Prizes in




00:14:29

Speaker 2: two different disciplines, different scientific disciplines that is physics and




00:14:34

Speaker 2: of course, afterwards,




00:14:35

Speaker 2: one more, one more. But he won, he won in




00:14:39

Speaker 2: uh one in scientific and the other was a peace prize.




00:14:42

Speaker 2: So Mari record even now it remains so it's hugely




00:14:48

Speaker 2: inspiring for any woman scientist I would say.




00:14:52

Speaker 2: So I just, she's the




00:14:54

Speaker 1: one for me. All right. So now you mentioned about,




00:14:58

Speaker 1: you know how tough it was for women in the




00:15:00

Speaker 1: past and it's still a little tough, maybe not as




00:15:03

Speaker 1: much as in the 19th century, but there are limitations




00:15:06

Speaker 1: for women to pursue their dreams, right? So if you




00:15:09

Speaker 1: are to give a message to the many aspiring uh




00:15:12

Speaker 1: space scientists out there, uh especially women, what would it be?




00:15:17

Speaker 2: Uh what I would say is, see, i it's uh




00:15:20

Speaker 2: applicable for women as well as for men that we




00:15:24

Speaker 2: have to identify. What really um what shall I say?




00:15:28

Speaker 2: What is your passion?




00:15:30

Speaker 2: Just follow your passion and then you are sure to




00:15:34

Speaker 2: gain great heights and but you have to keep yourself




00:15:37

Speaker 2: abreast of the happenings because things keep changing so fast.




00:15:40

Speaker 2: There are disruptive technologies which are coming and uh it's,




00:15:44

Speaker 2: it's actually not true only of space. It is true




00:15:47

Speaker 2: of every domain of life. I'm sure you agree. Give




00:15:51

Speaker 2: yourself a pu your passion.




00:15:54

Speaker 1: So




00:15:54

Speaker 2: that's it. But, but for women,




00:15:57

Speaker 2: the there are still challenges. Uh We cannot, uh we




00:16:01

Speaker 2: cannot say that everything is uh perfectly fine. As far




00:16:04

Speaker 2: as women are concerned, they have to believe in themselves.




00:16:07

Speaker 2: I feel they have to push beyond the comfort zone,




00:16:11

Speaker 2: not be afraid of anything,




00:16:13

Speaker 2: just go ahead and uh definitely fortune will




00:16:17

Speaker 1: favor you.




00:16:18

Speaker 1: All right. So that's the word follow your passion and




00:16:22

Speaker 1: you will achieve your dreams. So, thank you so much




00:16:25

Speaker 1: for joining us today, Dr Lizama. It was an honor




00:16:28

Speaker 1: to have you on Newsbreak podcast. This is on Manorama




00:16:31

Speaker 1: Newsbreak and Explain a podcast produced by Harita Benjamin, which




00:16:35

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00:16:38

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00:16:42

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