India's Moon Exploration Program

[Vamsi]

On lighter mode

View attachment 219343

For us it is TV-9 reporter

 

[Vamsi]

 

[Apollyon]

At this moment, I don't have any information on the control system used for landing in CY-3. But here's a Chinese paper studying the control system used in one of their landers:

Braking and attitude control of lunar lander in active descent stage

China officially launched the lunar exploration project, named “Chang’e Project,” in 2004. Then, in 2013, Chang’e-3 completed the soft landing on the lunar surface, starting a series of studies on the soft landing of spacecraft. This study aims to optimize the dynamic flight guidance and...

www.degruyter.com

They're using sliding mode control. I'm sure ISRO is using a modified and more failure-proof version of non-linear CS. Plus during the terminal decent phase, we're also using predictive CS to choose the best possible landing site.

From personal experience, theoretical analysis of dynamical system and controller design is the easy part. Practical implementation is whole another ball-game.

I remember during my PhD, one of my fellow labmate (from padosi mulk) was humble bragging about his 4 journal publications in Springer/Elsevier which he published during his Masters (while I only had 1 published in IEEE Transactions as first author ). I checked and all of them were Theory + Simulation in Matlab or HIL simulation with no novelty .Not worth the paper they were written on.

Predictably he is now facing difficulty completing his PhD on time as we have to publish 3+papers in IEEE Transactions which is whole other ballgame where you have to show Theory + Simulation + Hardware Implementation + Novelty.

 

[Indx TechStyle]

Neighbourhood

 

[FalconSlayers]

 

[Tactical Doge]

@Vamsi see
you worried for nothing

 

[AnantS]

 

[AnantS]

 

[Vamsi]

@Vamsi see
you worried for nothing

I was really worried man, thank God that I was wrong

 

[Cheepek]

Almost a million live viewers on the official stream on YouTube

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

www.youtube.com

 

[FalconSlayers]

More than a million waiting/viewing

 

[Tactical Doge]

really fucked up audio quality, thanks very much

 

[AnantS]

its 15 lakh now

really fucked up audio quality, thanks very much

now better

 

[The Juggernaut]

Last year (2019) I was waiting for Chandrayaan 2. Every news of successful manual of orbit was happening but a sense of fear was lingering in my mind. Things were going good but my anxiety was increasing. I was tormented to a feeling that at last moment of landing something will turn a mess. I didn't told about it anyone but it became unbearable on last night. I slept at 8:45 p.m., praying nothing bad happens. Next day I woke up early hoping that everything was fine. But news was devastating. I had made myself ready for the worst still news hurt.
Raat bhar Mera hriday bhay se kaap raha tha,

Today I am happy and excited in my heart but the sense of alarm still there. Lord Jagannath bless us !!! . Praying now for successful mission.

 

[FalconSlayers]

its 15 lakh now

now better

25 lakh now

Edit: 30 lakh now

 

[TopWatcher]

Live moon surface coming on screen

 

[Sanglamorre]

Launch livestream in one window, Gayatri mantra in another.

 

[Tactical Doge]

its 15 lakh now

now better

now again fked up

it keeps going back and forth

 

[shaktishivashakti]

really fucked up audio quality, thanks very much

Any links with comments in english ? Please.

 

[FalconSlayers]

now again fked up

it keeps going back and forth

Idts, it's just one guy who's mic is fcked up.

Any links with comments in english ? Please.

Tum sala ghulam log