ISRO General News and Updates

[Blademaster]

It is the learning process that takes the most time. Once you learn it, everything will go faster and smoother the second time. No getting around it. No shortcuts.

Americans and Russians did that. But remember, they did that part back in the 60s and 70s and India haven't started out. Now we are doing this.

 

[Indx TechStyle]

It is the learning process that takes the most time. Once you learn it, everything will go faster and smoother the second time. No getting around it. No shortcuts.

Americans and Russians did that. But remember, they did that part back in the 60s and 70s and India haven't started out. Now we are doing this.

Indeed we need to cope with timelines.
Soft landing a robot on other planet isn't a little deal.

 

[TopWatcher]

Indeed we need to cope with timelines.
Soft landing a robot on other planet isn't a little deal.

If its get success, ISRO should attempt mars landing in next.

 

[Varoon2]

Why is Business Standard reporting a very possible Chandrayaan launch in June? Are they just adding the previous announcement of a June launch, with the recent successful testing of the EMI/EMC system? A bit sloppy and careless, if so.

Chandrayaan-3 tested successfully, likely to be launched in June: ISRO

Indian Space Research Organisation (ISRO) on Sunday said that the 'Chandrayaan-3' lander has "successfully" underwent the Electro-Magnetic Interference/Electro-Magnetic Compatibility (EMI/EMC) test between January 31 and February 2 at the U R Rao Satellite Centre here.

www.business-standard.com

 

[Vamsi]

Why is Business Standard reporting a very possible Chandrayaan launch in June? Are they just adding the previous announcement of a June launch, with the recent successful testing of the EMI/EMC system? A bit sloppy and careless, if so.

Chandrayaan-3 tested successfully, likely to be launched in June: ISRO

Indian Space Research Organisation (ISRO) on Sunday said that the 'Chandrayaan-3' lander has "successfully" underwent the Electro-Magnetic Interference/Electro-Magnetic Compatibility (EMI/EMC) test between January 31 and February 2 at the U R Rao Satellite Centre here.

www.business-standard.com

It's just previous statement, what I have posted earlier is said by retd ISRO scientist

 

[Swesh]

It's just previous statement, what I have posted earlier is said by retd ISRO scientist

Recently launched microsat which included many experimental payload one is for possible unknown upcoming sigint sat for radar detection
Other one that use to track in air aricraft is likely for gsat20 who will perform same task it will be launched 2024
This is why microsat type small sat excites me they are like window to what is isro planning or will be launching soon
@Vamsi @Indx TechStyle @Varoon2

 

[Vamsi]

Recently launched microsat which included many experimental payload one is for possible unknown upcoming sigint sat for radar detection
Other one that use to track in air aricraft is likely for gsat20 who will perform same task it will be launched 2024
This is why microsat type small sat excites me they are like window to what is isro planning or will be launching soon
@Vamsi @Indx TechStyle @Varoon2

That SMP looks like a SIGINT payload

 

[Vamsi]

An interesting thread about CY-2 lander failure

 

[AnantS]

An interesting thread about CY-2 lander failure

So we dont have "throttlable thruster" even now?

 

[Vamsi]

So we dont have "throttlable thruster" even now?

We have Throttlable engine, but not continous throttlable engine,we do throttling step by step

 

[Indx TechStyle]

If its get success, ISRO should attempt mars landing in next.

ISRO will attempt a sample return mission to moon after it as they have stated in their long term plan.
There will be no Mars landing before 2035.

Mars unlike Moon, has an atmosphere and will require completely different kind of technologies to penetrate atmospheric friction and have a soft landing.

 

[WarmongerLSK]

We have Throttlable engine, but not continous throttlable engine,we do throttling step by step

What are issues with using liquid fuel? It should enable better and continuous throttling right?

 

[Vamsi]

What are issues with using liquid fuel? It should enable better and continuous throttling right?

Its not that easy as we may think

 

[angryIndian]

Indeed we need to cope with timelines.
Soft landing a robot on other planet isn't a little deal.

Just imagine how the Soviets managed to land Lukhod 1 in 70s and then managed to run it for a whopping 10 kilometers and all that was done using 3rd gen computers.

 

[karn]

What are issues with using liquid fuel? It should enable better and continuous throttling right?

Do you know if the landing thrusters are pressure fed or do they use a turbopump.

 

[TopWatcher]

ISRO will attempt a sample return mission to moon after it as they have stated in their long term plan.
There will be no Mars landing before 2035.

Mars unlike Moon, has an atmosphere and will require completely different kind of technologies to penetrate atmospheric friction and have a soft landing.

ISRO can do, can create new team on that. Just depend on budget ! nothing else.

If m sure , if ISRO get budget , will able to do it.

 

[Blademaster]

Its not that easy as we may think

Problem with liquid fuel in space is that it is elastic meaning it can expand due to lack of pressure so it needs to stay pressurized in order to function and that carries a weight penalty. Furthermore, it can crystalize in very cold temperature leading to blockage thus necessitating thermal management system to keep the liquid at desired temperature thereby carrying a weight penalty. It's not such a big deal when you are dealing with a big system such as a booster stage or second stage. However when you are dealing with a payload and every ounce matters, weight management & simplicity takes a higher degree of importance in order to keep the weight penalty down.

 

[WarmongerLSK]

Do you know if the landing thrusters are pressure fed or do they use a turbopump.

no idea, maybe @Vamsi can answer.

 

[WarmongerLSK]

Problem with liquid fuel in space is that it is elastic meaning it can expand due to lack of pressure so it needs to stay pressurized in order to function and that carries a weight penalty. Furthermore, it can crystalize in very cold temperature leading to blockage thus necessitating thermal management system to keep the liquid at desired temperature thereby carrying a weight penalty. It's not such a big deal when you are dealing with a big system such as a booster stage or second stage. However when you are dealing with a payload and every ounce matters, weight management & simplicity takes a higher degree of importance in order to keep the weight penalty down.

What does the contemporary landers use?

 

[Vamsi]

no idea, maybe @Vamsi can answer.

pressure fed