ISRO General News and Updates

[proud_indian]

Read what I wrote again carefully. GSLV Mk-III can not take our 12+ tons orbital vehicle (Gaganyaan) to space until it is upgraded with the new SCE-200 engine in 2021. SCE-200 is the 200kN Semi-cryogenic engine that is currently in testing phase.

You need to watch this video


from 15:16 onwards

 

[Mikesingh]

3 astronauts for one week orbiting at 300-400 km. Nice!

I wonder why ISRO's planning to send 3 astronauts? 2 would have been ideal. Saves cash, weight and space within the capsule. It costs an average of Rs 7 Lakhs per Kg to send to space (of course it depends on the rocket). And that's a lot of money that could be used for other safety gadgets.

 

[lcafanboy]

3 astronauts for one week orbiting at 300-400 km. Nice!

I wonder why ISRO's planning to send 3 astronauts? 2 would have been ideal. Saves cash, weight and space within the capsule. It costs an average of Rs 7 Lakhs per Kg to send to space (of course it depends on the rocket). And that's a lot of money that could be used for other safety gadgets.

Teen Tigada Kaam Bigada..

Isro either send 2 or make it bigger to 4....

 

[G10]

2030!!!!!????

Care to provide the timeline of events that would push it to such a later date? Or are you just speculating on the fly here while thinking "us Indians always face delays, never on time"?

It can happen before 2025 if GSLV Mk-III with HTVE is able to launch the orbital vehicle. It will happen in 2025 if we decide to wait till SCE-200 engines are installed on GSLV Mk-III and the rocket is man-rated.

The only scenario when we would have had to wait till 2030 for first Indian human spaceflight was if the government did not release the monies. The Government has made its will known today.

By 2030, we might have a space station program, or docking experiments at least.


Possible, but only if they use HTVE in L110 stage and if they are able to design a light service module. As of now, the payload for HSP weighs >12.6 tons. And the service module is not yet designed, although they said that the plan was to use the PSLV 4th stage as the base for the service module.

What preparations Does ISRO have? A crew model and escape system tested.
Launch vehicle -GSLV MK3 tested twice. Once without cryo engine. Can it be man rated just yet? Till 2022 we may fly 3 or 4 missions more. One mission with dry run in configuration is a must before we risk human lives.
Any infrastructure for training vyomonauts? We don’t even have a plan for this.

 

[Chinmoy]

What preparations Does ISRO have? A crew model and escape system tested.
Launch vehicle -GSLV MK3 tested twice. Once without cryo engine. Can it be man rated just yet? Till 2022 we may fly 3 or 4 missions more. One mission with dry run in configuration is a must before we risk human lives.
Any infrastructure for training vyomonauts? We don’t even have a plan for this.

Lets have a look at what ISRO is planning in next few years with GSLV MkIII

The GSLV-MkIII has so far completed one development flight. It is yet to be ‘human rated’ to ensure performance with an error margin of one in a million, which Sivan said would be done with 10-15 launches by 2022. Isro is planning two unmanned missions on the GSLV-MkIII that would carry the crew module with dummy passengers and scientific experiments into space before sending humans into space.

@Adioz ... Seems our orbital payload would be 7 tons

The rocket will be re-rated for a lower thrust to carry around seven tonnes of the payload into a lower earth orbit.

 

[Compersion]

the number of the launches conducted by space X and ISRO recently any comparison?

 

[Flame Thrower]

the number of the launches conducted by space X and ISRO recently any comparison?

Spacex has order to resupply ISS, Isro does not.

Spacex and Isro are both different organizations with different purposes. Comparing them is foolishness. In Isro, satellites are designed and built as well. Isro has its own achievements, so does Spacex.

Let's not get into stupid and useless arguments for no reason

 

[Compersion]

Spacex has order to resupply ISS, Isro does not.

Spacex and Isro are both different organizations with different purposes. Comparing them is foolishness. In Isro, satellites are designed and built as well. Isro has its own achievements, so does Spacex.

Let's not get into stupid and useless arguments for no reason

would love to have the data ... even over a period of 2 years. that includes successful and unsuccessful.

and what makes you assume ISRO is doing worse? I personally feel ISRO is doing great but sure things can always be better and done faster.

with respect to the purpose would like to disagree but you are correct that they are different. I am sure you are having good intent in your reply and that is for the support of India and ISRO. Same here.

Perhaps there is no articles at all on ISRO and Space X comparison out there like you have said (foolish) ...

https://www.thequint.com/tech-and-a...-where-does-indias-premier-space-agency-stand

https://www.thehindu.com/sci-tech/t...0-tonne-super-lift-rocket/article22724826.ece

*some will doubt and be critical on the source of information - hence I was wondering if there was an expert view on the same here.

 

[Advaidhya Tiwari]

would love to have the data ... even over a period of 2 years. that includes successful and unsuccessful.

and what makes you assume ISRO is doing worse? I personally feel ISRO is doing great but sure things can always be better and done faster.

with respect to the purpose would like to disagree but you are correct that they are different. I am sure you are having good intent in your reply and that is for the support of India and ISRO. Same here.

Check the table in wikipedia link about USA satellite launch. This does not include satellites launched by USA for ISS or other countries. But it gives all the names of satellite and launch rocket for major USA satellites

https://en.wikipedia.org/wiki/List_of_USA_satellites

 

[Compersion]

Check the table in wikipedia link about USA satellite launch. This does not include satellites launched by USA for ISS or other countries. But it gives all the names of satellite and launch rocket for major USA satellites

https://en.wikipedia.org/wiki/List_of_USA_satellites

According to article the number of launches:

ISRO (since 1975): 66
Space X (since 2010): 55

The size of the payloads is different as the Falcon 9 carries much heavier bulk than India’s rockets. On the other side - India makes does well on nano-satellites (launched over 100+ at one go).

 

[Mikesingh]

According to article the number of launches:

ISRO (since 1975): 66
Space X (since 2010): 55

The size of the payloads is different as the Falcon 9 carries much heavier bulk than India’s rockets. On the other side - India makes does well on nano-satellites (launched over 100+ at one go).

NASA has transferred much of their their technology to Musk to build their rockets under the Space Act Agreements. This has given them a head start. ISRO started from scratch. Needless to say, Musk's companies have and are introducing new technologies too like the reusable rocket etc. NASA and the US have saved millions of dollars in outsourcing their projects to Musk.

For info, in 2017, SpaceX had 45% global market share for awarded commercial launch contracts, and the estimate for 2018 is about 65% as of July 2018!!

 

[Kshithij]

Check the table in wikipedia link about USA satellite launch. This does not include satellites launched by USA for ISS or other countries. But it gives all the names of satellite and launch rocket for major USA satellites

https://en.wikipedia.org/wiki/List_of_USA_satellites

USA has launched only about 290 major satellites! I thought they had more. Interesting

According to article the number of launches:

ISRO (since 1975): 66
Space X (since 2010): 55

The size of the payloads is different as the Falcon 9 carries much heavier bulk than India’s rockets. On the other side - India makes does well on nano-satellites (launched over 100+ at one go).

Which article says this?

 

[Compersion]

NASA has transferred much of their their technology to Musk to build their rockets under the Space Act Agreements. This has given them a head start. ISRO started from scratch. Needless to say, Musk's companies have and are introducing new technologies too like the reusable rocket etc. NASA and the US have saved millions of dollars in outsourcing their projects to Musk.

For info, in 2017, SpaceX had 45% global market share for awarded commercial launch contracts, and the estimate for 2018 is about 65% as of July 2018!!

Useful information and also thanks for sharing.

I also read somewhere isro having greater private participants with pslv launch vehicle with eventual full handover to same. A form of outsourcing but I would alldue to your underlying message that is transfer of technology and technical knowhow.

The development of alternative energy sources (electric, purplusion, hydrogen fuel cell, etc , etc) and use is also valid. Wish we do not focus on only quality but quantity. I finish by saying that a failed launch is painful that can be overcome by having many launches nearby to establish ratio.

 

[Compersion]

USA has launched only about 290 major satellites! I thought they had more. Interesting


Which article says this?

Article:

https://www.thequint.com/tech-and-a...-where-does-indias-premier-space-agency-stand

In the image that’s in middle.

For note ISRO has announced more launches to past in schedule ahead. Personally Would like to see more launches nearby one another and also unnannocuned ones (that Iam sure there are already). How about launching two pslv - gslv (xxx) on same day. All this about destroying satellites in space how about demonstrating advanced skills beyond the same. There is also scope to repay lots of the love and loans to japan by launching some of their goods. Make it express reason to protect and manage the launches since others don’t want it to do well. Smaller satellite and nano is also Japanese and Indian footprint. Drones ? That’s child play.

 

[darshan978]

Read what I wrote again carefully. GSLV Mk-III can not take our 12+ tons orbital vehicle (Gaganyaan) to space until it is upgraded with the new SCE-200 engine in 2021. SCE-200 is the 200kN Semi-cryogenic engine that is currently in testing phase.

And the first human spaceflight is not going to be a sub-orbital one. The plan is to send the Gaganyaan up 300 km in space (well above the Karman line). They plan for Gaganyaan to stay in LEO for a week.


Merits of manned mission will be up for discussion in the next few days and the months after funds are released for the HSP. I hope you pay attention to that debate then. No point in me trying to explain all those benefits right now.

typical low earth orbit start at about 400km away thats where ISS(408km) is orbiting our earth...so manned space flight is well within possibility by 2021. though it might get delayed.

 

[Arihant Roy]

Dr K Sivan had reiterated yesterday that ISRO will complete the first manned Indian space flight well before our 76th Independence Day.

Some salient points of his speech-

1. ISRO is planning to complete the first manned space flight six months before the 76th I day.

2. Before the manned space flight, there will be two unmanned space flights to test the robustness and, reliability of the entire system-launch vehicle, Orbital module, coms setup, etc. ISRO plans to complete the first unmanned mission by the 30th month and the second mission on the 36th month.

3. The crew module has a max dia of 3.4 m and length of 7 metre. Together with the service module, it forms the Orbital module. This Orbital module will orbit at a height of 400 km. In comparison, International Space Station orbits at heights between 330 and 435 km.

4. The Orbital module weighs 7 tons. This module will be taken to its desired orbit by the GSLV MkIII. It will take 16 mins for the Orbital module to reach its desired orbit. And 36 mins for it to land on Earth. The crew module will detach from the service module at 120 kms and then descend. It will land in the Arabian sea close to Ahmedabad. Besides this, plans are also being made to have the module land in the Bay of Bengal or on land if any contingency arises.

5. Three gagaanauts will spend 5-7 days in the crew module. While up there they will conduct micro gravity experiments.

6. A prototype of the spacesuit has already been realized. Similarly, the prototype of the Environment control and life support system has also been manufactured. This proves both these systems are in the final stages of their design and developement.

7. The SSLV will have its first flight in the middle of next year. It can be prepared by a six man crew in just 3 days. It's max payload is 500 kgs.

8. 19 missions are planned in the next six months. 9 are launch vehicle missions and 10 are sat launches.

9. The configuration of Chandrayaan-2 has been changed. It now weighs 3850 kgs instead of 3250 kgs. So now it will be launched in the GSLV MkIII. The design of the lander has been changed to make it kore sturdy and a fifth 800 N engine has been added in the middle .

 

[Karthi]

 

[Karthi]

Gaganyan Misssion profile

 

[Karthi]

Chndrayaan 2 mission profile

 

[Karthi]

Future missions of ISRO