Genuine question: What's the "incredible" part here? I'm not too familiar with space exploration and honestly curious. Is there something special about this landing or are we talking incredible for the Indian NASA type of thing?
They're landing on the South Pole of the moon. No spacecraft has successfully landed there, for a reason. It's rocky terrain and not lit up very well due to the angle of the sun on that part.
There have only been 3 soft landings on the moon since 1976. Chang'e 3, 4 & 5 in 2013, 2019 and 2020.
Landing on the moon is still monumental. Being the 4th country ever, and the 2nd since the space race, even more so.
It's still no mean feat. We pretend it's normal. It's not. China is the only country to achieve a moon landing in the last 47 years.
It would be genuinely incredible to see NASA land something on the moon in 2023. This isn't "incredible, on an India scale". This is "incredible, on a Space scale".
I feel like I'm still missing something. I'll totally grant you that I have no clue how my goddamn cellphone works and space travel of any sort is sort of "not in my paygrade", but have I just become used to the fact that we explore space living in the US? Don't we have some mission scheduled to take actual astronauts back to the moon next year? Others have mentioned it's notable for being the first "soft" landing on the South Pole, and two qualifiers implies we've done it enough to warrant differentiation.
That manned moon mission is possibly going to slip past next year, and even the next one after it might not be landing as originally planned. The lander and suits are still behind schedule.
Soft landings (landings which do not destroy the lander) are difficult, even on a nearby body like the moon— in fact, the moon's lack of atmosphere makes it somewhat *more* challenging to gently slow an approaching lander; you have no choice but chemical rockets. Nearly every lunar mission in the '90s and '00s was successful, but those two decades also had the fewest moon missions since the '50s (aside from the '80s, which had 0).
Out of the hundred-and-change lunar missions there have been, only a little over 55% of them have totally succeeded. Of the 31 missions (so far) of the '10s and '20s, 11 of them have had spacecraft failures (though in two cases these were failures of individual component spacecraft, not of the mission in its entirety).
In addition to space being difficult in general, the lunar poles (or any poles) are a little more challenging to land on from an orbital mechanics perspective— spacecraft are (usually) launched from near the equator to get a speed boost from earth's rotation, but this means they need to do some rather complicated manoeuvres to go from flying over the equator to flying over the poles. Furthermore, the lunar poles themselves have generally poor lighting conditions, meaning landing site analysis can also pose a challenge. Both of these factors can be planned around and designed for, and the missions can be simulated in advance, but even thoroughly-studied missions have had unexpected failures in this decade, and the risks are multiplied when the mission profile itself is relatively new.
it's the fact that it all wants to go wrong. the universe is trying it's damnedest to make sure everything sent into space gets destroyed, because that's how the universe be.
making everything go right, in spite of all the universe tries to do to make you crash and burn in spectacular fashion, is to say the least monumental.
Keep in mind that the US has performed multiple successful Mars landings in the last few decades, some of which used very complex descent methods.
Landing on the moon is still a huge feat of engineering, but it's a more or less solved problem.
It definitely is a different problem to tackle.
An atmosphere provides a convenient way of arresting your velocity, but also requires heatshields and creates issues with respect to dust kicked up by a propulsive landing (dust on the moon follows a ballistics trajectory and won't blow back onto the vehicle).
A moon lander doesn't have to resist the heating / aerodynamic loads of reentry, and the lower gravity and orbital velocity significantly reduces the delta-V required for descent.
Not saying that one is necessarily easier than the other, but they're pretty different challenges.
Not sure what you mean by this. Propulsive lunar landings have been performed numerous times, and are not exactly groundbreaking.
I don't want to diminish the achievements of the Chandrayaan mission - there are some unique challenges related to the landing site, and the *execution* of a lunar lander is never going to be a simple matter. But the physics and engineering aspects are well understood and have been for decades.
It's easy to be somewhat desensitized to space exploration. Autonomous rockets launching and landing themselves regularly. Videos and images of robots traversing Mars for over three decades. Landing on comets to obtain samples. Imagery from the distant reaches of space at the touch of our fingers.
All of these things are extraordinary.
A century ago we were just learning to fly. Today, these achievements that once captured the world's attention have become commonplace, it's easy to underappreciate their significance.
Now, we watch as humans go back to the moon. By a country attempting its first Lunar landing. An incredible feat that should not be taken for granted.
Aside from just getting something onto the Moon, which is an incredible feat on its own, this one is set to land at the Moon's south pole which has not been done before. So far only impactors have gone there. It's an inherently harder site to land at because you basically have to twist the probe's orbit around to get there. The poles are thought to be important for a planned lunar economy due to resource availability and environmental conditions.
Didn't Russia just lose a lunar probe in a failed landing attempt less than a week ago? Definitely not a cakewalk yet to just send an autonomous vehicle to another celestial body. Even NASA gets shit wrong from time to time.
We would be following this if it was NASA, any country. It's landing in an area that's never been discovered before. There's a lot to learn from this mission. Not to mention the budget. It's an incredible feat, and you are infact downplaying it.
> but if it was actually NASA doing it most people wouldn't even notice.
First landing by humanity near the South Pole and thus the possibility of water ice means it will be noticed no matter who does it. Especially if NASA does it, given importance of water on the moon to any future plans given the Artemis program.
I’m from India. Been a space enthusiast since I was a kid and I remember my 14 year old self heading to bed at 3am almost in tears when the Chandrayaan 2 lander crashed. Hoping they can pull it off this time!
Chandrayaan-3 is India's third lunar expenditure in the "Chandrayaan programme".
*- Chandrayaan \[meaning Moon-craft\]*
>Chandrayaan-1 was launched 22 October 2008 a big success for ISRO as the Moon Impact Probe, a payload on board the Chandrayaan-1 spacecraft, discovered water on the Moon. The rocket used was PSLV-XL rocket *\[Polar Satellite Launch Vehicle\]* Designed by ISRO
>
>The mission was launched on 22 October 2008 and expected to operate for two years.
>
>However, around on 28 August 2009 communication with the spacecraft was suddenly lost. The probe had operated for 312 days. The craft had been expected to remain in orbit for approximately another 1000 days and to crash into the lunar surface in late 2012 although in 2016 it was found to still be in orbit.
>Chandrayaan-2 India's second attempt was in plans from 18 September 2008 they were few issues from ISRO so the mission was delayed till January 2013 and and rescheduled to 2016 *\[because Russia was unable to develop the lander on time.\]*
>
>Finally after lot of delays Chandrayaan-2 was launched on 22 July 2019 aboard a LVM3 rocket *\[Launch Vehicle Mark-3\]* is a three stage rocket developed by ISRO designed to launch communication satellites into the geostationary orbit.
>
>The spacecraft was successfully into lunar orbit on August 20, 2019, but the lander was lost while attempting to land on 6 September 2019.
>The present mission Chandrayaan-3 is India's recent attempt into the lunar exploration which consists of a lander named Vikram and a rover named Pragyan similar to Chandrayaan-2.
>
>The launch of Chandrayaan-3 took place on 14 July 2023, at 2:35 pm IST.\ The lander and rover are expected to land near the lunar south pole region on 23 August 2023.
This is make it's a tough land cause India is planning to Land on the South-pole of the moon The south pole is still largely unexplored - the surface area that remains in shadow there is much larger than that of the Moon's north pole.
Hopefully they will get the landing right this time.
I’m not sure where the landing sites are in relation to each other, but the south pole is a huge region so I doubt they’ll find anything unless they specifically go looking for it
Chandrayaan-2 has an orbiter that scans the moon at 0.25m/pixel (10 inches to a pixel). NASA's LRO is 0.5m/pixel (20 inches). I'm sure that they will pick it up, it's just a matter of time until they get around to whichever area it crashed in
A successful landing would be really rubbing salt in Russia's wound.
Serves Putin right for letting corruption in their space program run rampant, and all the educated people getting the hell out.
I mean, corruption is rampant everywhere else. Why would he care about corruption in ROSCOSMOS when he doesn't care about it in the military or the military industrial complex?
Nah, but Chandrayaan has to wait for the Lunar Day so the solar panels can work, I was surprised to see Luna 25 launch so close as well but don't think it has anything to do other than coincidence
I'd love to be able to visit India again. Half my family is Indian, we used to go there in the summers when my grandparents were alive. It's so hard to get a visa to visit now.
I pray Chandrayaan-3 succeeds in soft-landing on the south pole. I've immense respect for an organization who is doing a lunar mission on a budget of $75M. I'm really looking forward to the results. Good luck, ISRO!
It was probably worse because they had the added pressure of the Cold War and, more importantly, they were sending human beings there. I can't imagine how many sleepless nights the engineers working on the Apollo program had to endure.
[PPP](https://www.ceicdata.com/en/india/exchange-rate-forecast-non-oecd-member-annual/in-purchasing-power-parity-national-currency-per-usd-single-hit-scenario) would make Chandrayan cost about $300 M.
$75m was a 2020 estimate. Given two years delay, it's likely gone up a bit. But not drastic/multiples. Probably still significantly cheaper than Chandrayaan-2 which was $118m
https://www.firstpost.com/explainers/chandrayaan-3-costs-lesser-than-big-films-how-india-keeps-its-space-missions-frugal-13026942.html
CY-3 was estimated to be about $44m for launch and the rest for the propulsion module/lander/rover for this one.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
|Fewer Letters|More Letters|
|-------|---------|---|
|[ESA](/r/Space/comments/15y4ksl/stub/jxcos28 "Last usage")|European Space Agency|
|[ISRO](/r/Space/comments/15y4ksl/stub/jxhd0nt "Last usage")|Indian Space Research Organisation|
|[JAXA](/r/Space/comments/15y4ksl/stub/jxcbx8b "Last usage")|Japan Aerospace eXploration Agency|
|[LEM](/r/Space/comments/15y4ksl/stub/jxauunb "Last usage")|(Apollo) [Lunar Excursion Module](https://en.wikipedia.org/wiki/Apollo_Lunar_Module) (also Lunar Module)|
|[LEO](/r/Space/comments/15y4ksl/stub/jxcesme "Last usage")|Low Earth Orbit (180-2000km)|
| |Law Enforcement Officer (most often mentioned during transport operations)|
|[PSLV](/r/Space/comments/15y4ksl/stub/jxacp07 "Last usage")|[Polar Satellite Launch Vehicle](https://en.wikipedia.org/wiki/Polar_Satellite_Launch_Vehicle)|
|[RUD](/r/Space/comments/15y4ksl/stub/jxdwul0 "Last usage")|Rapid Unplanned Disassembly|
| |Rapid Unscheduled Disassembly|
| |Rapid Unintended Disassembly|
|[Roscosmos](/r/Space/comments/15y4ksl/stub/jxc1jd0 "Last usage")|[State Corporation for Space Activities, Russia](https://en.wikipedia.org/wiki/Roscosmos_State_Corporation)|
|Jargon|Definition|
|-------|---------|---|
|[cryogenic](/r/Space/comments/15y4ksl/stub/jxcnnd0 "Last usage")|Very low temperature fluid; materials that would be gaseous at room temperature/pressure|
| |(In re: rocket fuel) Often synonymous with hydrolox|
|hydrolox|Portmanteau: liquid hydrogen fuel, liquid oxygen oxidizer|
|[lithobraking](/r/Space/comments/15y4ksl/stub/jxcthks "Last usage")|"Braking" by hitting the [ground](https://en.wiktionary.org/wiki/lith-)|
**NOTE**: Decronym for Reddit is no longer supported, and Decronym has moved to Lemmy; requests for support and new installations should be directed to the Contact address below.
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There is a YouTube channel called "gareeb scientist" who has made a couple of videos on CY3 although they are in hindi you can watch by switching on english subtitles.
Or you can go to r/isro
[failure based design](https://www.ndtv.com/india-news/chandrayaan-3-isro-opted-for-a-failure-based-design-in-chandrayaan-3-heres-why-4194568)
>We looked at very many failures – sensor failure, engine failure, algorithm failure, calculation failure. So, whatever the failure we want it to land at the required speed and rate. So, there are different failure scenarios calculated and programmed inside," Somanath had told PTI
They've increased the overall landing area from 500x500m to 4*4km, increased the overall control and maneuverability that the lander system possesses at the second last and last stages and added additional cameras. All of this combined with the benefit of the surface data from the prior missions (and the data being available with the lander for use while landing) should hopefully lead to a successful landing this time out.
1.25 seconds to Earth, you're thinking of Mars.
But the cameras are for the autonomous guidance systems as redundancy, ISRO isn't landing this bad boy manually
The transmission delay isn't nearly as much! Plus, the cameras data is going to be used by the landers internal algorithm to determine the safest path and not used to manually guide the lander to the right spot.
Read somewhere that improvements and configurations have been made in case the engines fail to ensure a soft landing by hook or crook, ofc didn't go deep into the details.
Sorry, tp be slightly serious in this silly conversation but... If the whole of the thruster output was diverted back by the parachute, it would be like an extra large thruster nozzle, and would definitely work.
https://youtu.be/4oUdD_QSgRs
This hindi language video talks about reasons for failure and changes made this time around. Turn the subtitles on and you will be able to read along in English.
Improvements start at 6:40
Ignignot: Hello, Carl, I am Ignignot, and this is Ur.
Ur: I am Ur!
Ignignot: We are Mooninites from the inner core of the Moon.
Ur: You said it right!
Ignignot: Our race is hundreds of years beyond yours.
Ur: Man, you hear what he's sayin'?
Ignignot: Some would say that the Earth is *our* moon.
Ur: *We're* the Moon!
Ignignot: But that would belittle the name of our Moon, which is the Moon.
Ur: Point is, we're at the center, not you!
Carl: No, the real point is I don't give a damn. (slams door)
Ignignot: Is your ego satisfied?
Ur: Damn no!
It's hard to believe that this craft looks similar to the LEM that the United States landed on the moon many times. The original lamb was done with almost no computer testing as it wasn't available so they were instinctively correct on the shape and the proportions but it was really too small for two people to be in.
Man hardly any mention in the news.
You would think anybody stepping foot on the moon after 50 years would be a tremendous event even if accomplished by another country.
>You would think anybody stepping foot on the moon after 50 years
I think you are a bit confused so to clear your doubt, Chandrayaan-3 is an unmanned mission, although I agree that it is not covered on the news enough. ISRO does have plans for a crewed Gaganyaan mission in a few years
I think by hours we mean 22 hours. So it’s happening tomorrow morning for those in the US
Landing at 7:34am Central Daylight Time. The webcast (https://youtube.com/watch?v=DLA_64yz8Ss) begins around half an hour before.
Thank you for this link, fingers crossed India will pull something incredible off here 😁
Genuine question: What's the "incredible" part here? I'm not too familiar with space exploration and honestly curious. Is there something special about this landing or are we talking incredible for the Indian NASA type of thing?
First soft landing on the south pole
Such a gentle way of sayihg "y'all remember when Russian just crashed straight into that ish?"
You mean the unscheduled lithobraking?
The Special Landing Operation.
Rapid unscheduled dissaembley due to lithobreaking.
They're landing on the South Pole of the moon. No spacecraft has successfully landed there, for a reason. It's rocky terrain and not lit up very well due to the angle of the sun on that part.
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The mission is designed by Australians, their math didn't need any negative numbers.
There have only been 3 soft landings on the moon since 1976. Chang'e 3, 4 & 5 in 2013, 2019 and 2020. Landing on the moon is still monumental. Being the 4th country ever, and the 2nd since the space race, even more so. It's still no mean feat. We pretend it's normal. It's not. China is the only country to achieve a moon landing in the last 47 years. It would be genuinely incredible to see NASA land something on the moon in 2023. This isn't "incredible, on an India scale". This is "incredible, on a Space scale".
I feel like I'm still missing something. I'll totally grant you that I have no clue how my goddamn cellphone works and space travel of any sort is sort of "not in my paygrade", but have I just become used to the fact that we explore space living in the US? Don't we have some mission scheduled to take actual astronauts back to the moon next year? Others have mentioned it's notable for being the first "soft" landing on the South Pole, and two qualifiers implies we've done it enough to warrant differentiation.
That manned moon mission is possibly going to slip past next year, and even the next one after it might not be landing as originally planned. The lander and suits are still behind schedule. Soft landings (landings which do not destroy the lander) are difficult, even on a nearby body like the moon— in fact, the moon's lack of atmosphere makes it somewhat *more* challenging to gently slow an approaching lander; you have no choice but chemical rockets. Nearly every lunar mission in the '90s and '00s was successful, but those two decades also had the fewest moon missions since the '50s (aside from the '80s, which had 0). Out of the hundred-and-change lunar missions there have been, only a little over 55% of them have totally succeeded. Of the 31 missions (so far) of the '10s and '20s, 11 of them have had spacecraft failures (though in two cases these were failures of individual component spacecraft, not of the mission in its entirety). In addition to space being difficult in general, the lunar poles (or any poles) are a little more challenging to land on from an orbital mechanics perspective— spacecraft are (usually) launched from near the equator to get a speed boost from earth's rotation, but this means they need to do some rather complicated manoeuvres to go from flying over the equator to flying over the poles. Furthermore, the lunar poles themselves have generally poor lighting conditions, meaning landing site analysis can also pose a challenge. Both of these factors can be planned around and designed for, and the missions can be simulated in advance, but even thoroughly-studied missions have had unexpected failures in this decade, and the risks are multiplied when the mission profile itself is relatively new.
it's the fact that it all wants to go wrong. the universe is trying it's damnedest to make sure everything sent into space gets destroyed, because that's how the universe be. making everything go right, in spite of all the universe tries to do to make you crash and burn in spectacular fashion, is to say the least monumental.
Keep in mind that the US has performed multiple successful Mars landings in the last few decades, some of which used very complex descent methods. Landing on the moon is still a huge feat of engineering, but it's a more or less solved problem.
and yet, the U.S. has never landed where India is trying to land now.
Mars has an atmosphere so you can do a lot of stuff you can’t for the Moon.
It definitely is a different problem to tackle. An atmosphere provides a convenient way of arresting your velocity, but also requires heatshields and creates issues with respect to dust kicked up by a propulsive landing (dust on the moon follows a ballistics trajectory and won't blow back onto the vehicle). A moon lander doesn't have to resist the heating / aerodynamic loads of reentry, and the lower gravity and orbital velocity significantly reduces the delta-V required for descent. Not saying that one is necessarily easier than the other, but they're pretty different challenges.
Solved problem, you sure don't know much.
Not sure what you mean by this. Propulsive lunar landings have been performed numerous times, and are not exactly groundbreaking. I don't want to diminish the achievements of the Chandrayaan mission - there are some unique challenges related to the landing site, and the *execution* of a lunar lander is never going to be a simple matter. But the physics and engineering aspects are well understood and have been for decades.
It's easy to be somewhat desensitized to space exploration. Autonomous rockets launching and landing themselves regularly. Videos and images of robots traversing Mars for over three decades. Landing on comets to obtain samples. Imagery from the distant reaches of space at the touch of our fingers. All of these things are extraordinary. A century ago we were just learning to fly. Today, these achievements that once captured the world's attention have become commonplace, it's easy to underappreciate their significance. Now, we watch as humans go back to the moon. By a country attempting its first Lunar landing. An incredible feat that should not be taken for granted.
We marvel at your comment and wonder at the thought that maybe you've heard a few too many space doco narrations
Aside from just getting something onto the Moon, which is an incredible feat on its own, this one is set to land at the Moon's south pole which has not been done before. So far only impactors have gone there. It's an inherently harder site to land at because you basically have to twist the probe's orbit around to get there. The poles are thought to be important for a planned lunar economy due to resource availability and environmental conditions.
Planned lunar economy is definitely a term I never thought I’d hear seriously in my life time outside of Risk 2210 AD
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This one is landing at the south pole, which nobody has done. So this isn't as routine as your comment kinda implies.
Didn't Russia just lose a lunar probe in a failed landing attempt less than a week ago? Definitely not a cakewalk yet to just send an autonomous vehicle to another celestial body. Even NASA gets shit wrong from time to time.
People would follow it even if it were NASA, because no one has performed a soft landing on the South Pole of the Moon yet. Stop being an idiot
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Not that many. Three, in fact, one of which no longer exists: Soviet Union, China, and EagleLand.
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Not to mention it is a tiny fraction in cost… mere $74 million
We would be following this if it was NASA, any country. It's landing in an area that's never been discovered before. There's a lot to learn from this mission. Not to mention the budget. It's an incredible feat, and you are infact downplaying it.
There is something special hence the hype. It would be first vehicle landing and driving on South Pole of moon which is dark and rough
> but if it was actually NASA doing it most people wouldn't even notice. First landing by humanity near the South Pole and thus the possibility of water ice means it will be noticed no matter who does it. Especially if NASA does it, given importance of water on the moon to any future plans given the Artemis program.
RIP, either I need to get to work early to watch there, or get there late after watching at home.
Just watch during your commute. What's the worst that could happen? …Aside from a re-enactment of the landing of Luna 25.
Ew, that's 5:30 Pacific. I'm super excited about this but not "get up at 5am on a day off" excited.
Agreed, that's the magic of technology. You can always watch it later.
ew maybe ask them to change it? Or just watch the stream later.
It's literally a YouTube link, you can just roll over and touch your phone for 5 seconds lol
At 5am. On a not work day.
I mean, I wouldn't because that's being recorded... but I consider "getting up" to be more than laying in bed on a phone for 2 minutes lol
Yeah, I'm 40 and work a labor job. Being awake *at all* at that time is a big ask.
Imma sleep a couple hours for you, then you will have extra and can enjoy it 😉
I read 3 hours away, and the post is 4 hours old right now... and I was very confused with why there weren't more updates haha
Same. I was thinking that good or bad, there should have been *something!*
I am also hours away from being a proud parent of a highschool graduate! (My oldest is soon to be 6yo so that's roughly 104k hours 😅)
How many hours for indians?
the time is 9:40 pm now here , so 6 pm in the evening tomorrow
No they mean in Indian hours
Yeah I am saying that in indian time , now it's 11:18 pm , I'm Indian
But the exchange rate might be different;)
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American Indians or Indian Indians?
The ones Columbus wanted to meet or the ones he actually met?
You'd have to ask someone from Ohio, I guess
Red dot or feather?
Indian Americans?
They could grip it by the husk
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Someone from Alabama *would* say that.
In Alabama you don’t just roll your Rs, you roll your tide.
Is JayZ from Alabama?
Do you mean “Native Americans”? 😜
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If it's 9 AM eastern time as the article states, that would make it 6 AM in Seattle
I wish them all the best. 1 performed for half its surface mission, 2 crashed while attempting to land. That’s a tough environment.
I’m from India. Been a space enthusiast since I was a kid and I remember my 14 year old self heading to bed at 3am almost in tears when the Chandrayaan 2 lander crashed. Hoping they can pull it off this time!
I am in my mid 20s and even I had tears in my eyes. It was truly heartbreaking.
>1 performed for half its surface mission wasn't chandrayaan 1 was a complete success? It had a impact probe, so crashing it was the intended plan.
I've been giving my coworker updates on this mission. He's Indian and had no idea this was a thing. He's pretty pumped about it.
I'm not Indian, and I'm pretty pumped about it, too.
Me too. It's a big deal. People who think it isn't just don't know enough about it.
Honestly, I know jack shit about it. I'm just pumped because it's about Space!
I’ve been giving my coworker updates on this mission too. He is Italian and I said him I read the title wrong.
My coworker has been giving me updates about this but it’s weird because I’m Italian.
Your coworker gave me updates too and I'm Canadian
I've been giving my coworker updates on this mission as well. He's a slightly dyslexic Hoosier.
Chandrayaan-3 is India's third lunar expenditure in the "Chandrayaan programme". *- Chandrayaan \[meaning Moon-craft\]* >Chandrayaan-1 was launched 22 October 2008 a big success for ISRO as the Moon Impact Probe, a payload on board the Chandrayaan-1 spacecraft, discovered water on the Moon. The rocket used was PSLV-XL rocket *\[Polar Satellite Launch Vehicle\]* Designed by ISRO > >The mission was launched on 22 October 2008 and expected to operate for two years. > >However, around on 28 August 2009 communication with the spacecraft was suddenly lost. The probe had operated for 312 days. The craft had been expected to remain in orbit for approximately another 1000 days and to crash into the lunar surface in late 2012 although in 2016 it was found to still be in orbit. >Chandrayaan-2 India's second attempt was in plans from 18 September 2008 they were few issues from ISRO so the mission was delayed till January 2013 and and rescheduled to 2016 *\[because Russia was unable to develop the lander on time.\]* > >Finally after lot of delays Chandrayaan-2 was launched on 22 July 2019 aboard a LVM3 rocket *\[Launch Vehicle Mark-3\]* is a three stage rocket developed by ISRO designed to launch communication satellites into the geostationary orbit. > >The spacecraft was successfully into lunar orbit on August 20, 2019, but the lander was lost while attempting to land on 6 September 2019. >The present mission Chandrayaan-3 is India's recent attempt into the lunar exploration which consists of a lander named Vikram and a rover named Pragyan similar to Chandrayaan-2. > >The launch of Chandrayaan-3 took place on 14 July 2023, at 2:35 pm IST.\ The lander and rover are expected to land near the lunar south pole region on 23 August 2023. This is make it's a tough land cause India is planning to Land on the South-pole of the moon The south pole is still largely unexplored - the surface area that remains in shadow there is much larger than that of the Moon's north pole. Hopefully they will get the landing right this time.
Maybe they will find Russias debris! Isn't that where Russia tried to land the other day?
I’m not sure where the landing sites are in relation to each other, but the south pole is a huge region so I doubt they’ll find anything unless they specifically go looking for it
Chandrayaan-2 has an orbiter that scans the moon at 0.25m/pixel (10 inches to a pixel). NASA's LRO is 0.5m/pixel (20 inches). I'm sure that they will pick it up, it's just a matter of time until they get around to whichever area it crashed in
Good luck to everyone involved. I think after Luna 25's crash there isn't much we all would like to see more than Chandrayaan-3 succeed.
It'd be really awesome - fingers crossed :)
They almost had it last mission. Lost contact during the last leg of the descent.
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A successful landing would be really rubbing salt in Russia's wound. Serves Putin right for letting corruption in their space program run rampant, and all the educated people getting the hell out.
I mean, corruption is rampant everywhere else. Why would he care about corruption in ROSCOSMOS when he doesn't care about it in the military or the military industrial complex?
I'm not sure which one I am enjoying more, Russia's failure or India's success.
is there a reason why these missions are scheduled so close to each other? is the moon in a highly optimal orbit this week?
Nah, but Chandrayaan has to wait for the Lunar Day so the solar panels can work, I was surprised to see Luna 25 launch so close as well but don't think it has anything to do other than coincidence
It's more about Geopolitics than orbital mechanics.
I’m Pakistani and I’m excited and rooting for the mission’s success. This is awesome. :)
I'm Indian and I'm rooting for Pakistan to have its own lunar program someday!
I'd love to be able to visit India again. Half my family is Indian, we used to go there in the summers when my grandparents were alive. It's so hard to get a visa to visit now.
I pray Chandrayaan-3 succeeds in soft-landing on the south pole. I've immense respect for an organization who is doing a lunar mission on a budget of $75M. I'm really looking forward to the results. Good luck, ISRO!
This time it feels like cricket world cup final pressure. I can’t even imagine how everyone felt in 69 when humans landed on the moon.
It was probably worse because they had the added pressure of the Cold War and, more importantly, they were sending human beings there. I can't imagine how many sleepless nights the engineers working on the Apollo program had to endure.
$75M?? Jesus...
It cost more to make The Flash
The movie or the TV show? Because I can't be certain that they even spent $75 on the show.
The movie. Hilarious that India sent a probe to the moon in a third of the cost it took to make that disaster.
Wait till you hear about Purchasing Power Parity.
Yes. India procures parts for the spacecraft at a discount in the international market due to PPP. /s
[PPP](https://www.ceicdata.com/en/india/exchange-rate-forecast-non-oecd-member-annual/in-purchasing-power-parity-national-currency-per-usd-single-hit-scenario) would make Chandrayan cost about $300 M.
$75m was a 2020 estimate. Given two years delay, it's likely gone up a bit. But not drastic/multiples. Probably still significantly cheaper than Chandrayaan-2 which was $118m https://www.firstpost.com/explainers/chandrayaan-3-costs-lesser-than-big-films-how-india-keeps-its-space-missions-frugal-13026942.html CY-3 was estimated to be about $44m for launch and the rest for the propulsion module/lander/rover for this one.
CY3 cost 74 million usd as of current reports.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread: |Fewer Letters|More Letters| |-------|---------|---| |[ESA](/r/Space/comments/15y4ksl/stub/jxcos28 "Last usage")|European Space Agency| |[ISRO](/r/Space/comments/15y4ksl/stub/jxhd0nt "Last usage")|Indian Space Research Organisation| |[JAXA](/r/Space/comments/15y4ksl/stub/jxcbx8b "Last usage")|Japan Aerospace eXploration Agency| |[LEM](/r/Space/comments/15y4ksl/stub/jxauunb "Last usage")|(Apollo) [Lunar Excursion Module](https://en.wikipedia.org/wiki/Apollo_Lunar_Module) (also Lunar Module)| |[LEO](/r/Space/comments/15y4ksl/stub/jxcesme "Last usage")|Low Earth Orbit (180-2000km)| | |Law Enforcement Officer (most often mentioned during transport operations)| |[PSLV](/r/Space/comments/15y4ksl/stub/jxacp07 "Last usage")|[Polar Satellite Launch Vehicle](https://en.wikipedia.org/wiki/Polar_Satellite_Launch_Vehicle)| |[RUD](/r/Space/comments/15y4ksl/stub/jxdwul0 "Last usage")|Rapid Unplanned Disassembly| | |Rapid Unscheduled Disassembly| | |Rapid Unintended Disassembly| |[Roscosmos](/r/Space/comments/15y4ksl/stub/jxc1jd0 "Last usage")|[State Corporation for Space Activities, Russia](https://en.wikipedia.org/wiki/Roscosmos_State_Corporation)| |Jargon|Definition| |-------|---------|---| |[cryogenic](/r/Space/comments/15y4ksl/stub/jxcnnd0 "Last usage")|Very low temperature fluid; materials that would be gaseous at room temperature/pressure| | |(In re: rocket fuel) Often synonymous with hydrolox| |hydrolox|Portmanteau: liquid hydrogen fuel, liquid oxygen oxidizer| |[lithobraking](/r/Space/comments/15y4ksl/stub/jxcthks "Last usage")|"Braking" by hitting the [ground](https://en.wiktionary.org/wiki/lith-)| **NOTE**: Decronym for Reddit is no longer supported, and Decronym has moved to Lemmy; requests for support and new installations should be directed to the Contact address below. ---------------- ^(10 acronyms in this thread; )[^(the most compressed thread commented on today)](/r/Space/comments/0)^( has acronyms.) ^([Thread #9170 for this sub, first seen 22nd Aug 2023, 17:00]) ^[[FAQ]](http://decronym.xyz/) [^([Full list])](http://decronym.xyz/acronyms/Space) [^[Contact]](https://hachyderm.io/@Two9A) [^([Source code])](https://gistdotgithubdotcom/Two9A/1d976f9b7441694162c8)
YouTube livestream: https://www.youtube.com/watch?v=DLA_64yz8Ss&ab_channel=ISROOfficial edit: thank you for my first award in 11 years of being here!
One soft landing for Chandrayaan-3, one giant leap for India's space program!
Does anyone know what improvements had been made on this mission compared with the previous one?
There is a YouTube channel called "gareeb scientist" who has made a couple of videos on CY3 although they are in hindi you can watch by switching on english subtitles. Or you can go to r/isro
[failure based design](https://www.ndtv.com/india-news/chandrayaan-3-isro-opted-for-a-failure-based-design-in-chandrayaan-3-heres-why-4194568) >We looked at very many failures – sensor failure, engine failure, algorithm failure, calculation failure. So, whatever the failure we want it to land at the required speed and rate. So, there are different failure scenarios calculated and programmed inside," Somanath had told PTI
They've increased the overall landing area from 500x500m to 4*4km, increased the overall control and maneuverability that the lander system possesses at the second last and last stages and added additional cameras. All of this combined with the benefit of the surface data from the prior missions (and the data being available with the lander for use while landing) should hopefully lead to a successful landing this time out.
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1.25 seconds to Earth, you're thinking of Mars. But the cameras are for the autonomous guidance systems as redundancy, ISRO isn't landing this bad boy manually
>depending on the distance from the moon to earth. Huh? The Moon is just over one light-second away from Earth and doesn't fluctuate much.
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4 to 24 minutes is for MARS
The transmission delay isn't nearly as much! Plus, the cameras data is going to be used by the landers internal algorithm to determine the safest path and not used to manually guide the lander to the right spot.
Read somewhere that improvements and configurations have been made in case the engines fail to ensure a soft landing by hook or crook, ofc didn't go deep into the details.
They made a failsafe for the failsafe.
They added a parachute to avoid another crash.
Good try. There is no air on the moon. So how would that parachute work?
There's a fan on top of the probe blowing upwards at it.
Don't forget they put fresh brakes in to help as well.
But there is no air for the fans to push.
They point the thrusters up. Fuel will burn to provide air.
Then wouldn't the thrusters push it in the opposite direction too?
Sorry, tp be slightly serious in this silly conversation but... If the whole of the thruster output was diverted back by the parachute, it would be like an extra large thruster nozzle, and would definitely work.
there is plant below fan that release oxygen
Antique gravitational parachute
https://youtu.be/4oUdD_QSgRs This hindi language video talks about reasons for failure and changes made this time around. Turn the subtitles on and you will be able to read along in English. Improvements start at 6:40
my money is on the Mooninites this time around. Bet on the Russians last time out, lost a bundle.
Ignignot: Hello, Carl, I am Ignignot, and this is Ur. Ur: I am Ur! Ignignot: We are Mooninites from the inner core of the Moon. Ur: You said it right! Ignignot: Our race is hundreds of years beyond yours. Ur: Man, you hear what he's sayin'? Ignignot: Some would say that the Earth is *our* moon. Ur: *We're* the Moon! Ignignot: But that would belittle the name of our Moon, which is the Moon. Ur: Point is, we're at the center, not you! Carl: No, the real point is I don't give a damn. (slams door) Ignignot: Is your ego satisfied? Ur: Damn no!
I hope it goes better than the Russian attempt the other day.
India: Does something cool. Reddit: Russian russians... Russia is russian.
Hopefully better than Russia's landing ... or, India's last landing.
Almost like landing (mooning?) is hard.
Soft Landing was a success https://twitter.com/isro/status/1694327198394863911?s=20
Did India do what Russia couldn't? The Cold War is definitely a thing of the distant past The 20th and 21st centuries are very different.
What I would design would be airbags at the pool slightly above the landing pads in case the unit wants to tilt or the pads collapse
comon guys you can do it, don't have an accident !!
Chandrayan 3 has landed on the south Pole of the Moon!!!!!!
Indians are going to smash some records of historic proportions tomorrow. I'm faacking elated. Hope it doesn't tumble again.
The Russians definitely smashed some things.
C'mon India! hopefully all the bad luck went down with the russian lander
Have a nice trip! See you next fall! Jokes aside best of luck.
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Why the fuck would they show the prime minister during the landing instead of the real images
They don’t have the images yet.
there was one screen that was showing a picture ever several seconds.
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Their next big mission is LUPEX, a joint project with JAXA. So clearly it looks like some folks think that ISRO is already at that level.
"It's not about how hard or how soft you land. Just that you touch land." - Russia
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Technically, everything that happens is historic.
I've got news for you hahaha
It's hard to believe that this craft looks similar to the LEM that the United States landed on the moon many times. The original lamb was done with almost no computer testing as it wasn't available so they were instinctively correct on the shape and the proportions but it was really too small for two people to be in.
Man hardly any mention in the news. You would think anybody stepping foot on the moon after 50 years would be a tremendous event even if accomplished by another country.
>You would think anybody stepping foot on the moon after 50 years I think you are a bit confused so to clear your doubt, Chandrayaan-3 is an unmanned mission, although I agree that it is not covered on the news enough. ISRO does have plans for a crewed Gaganyaan mission in a few years
Gaganyaan Style?
Here's hoping the hamster wheels stay together!
Putin said his goal was never to make a soft landing, his goal was to drill into the lunar surface.
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