ISRO News and Updates

Okabe Rintarou

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@Okabe Rintarou They are still taking about that 16T to GTO, 41T to LEO launcher.
Good catch, the slide says varying GTO payload from 7 tons to 16 tons by varying boosters. So maybe its 7 tons to GTO and 23 tons to LEO with two SC-120 boosters and then 16 tons to GTO and 41 tons to LEO with two SC-400 as boosters. And without the boosters it'll be 5 tons to GTO and 16 tons to LEO. HLV will be truly modular and cover the entire range from higher end of medium lift LVs to the entire heavy lift LV spectrum. While PSLV will handle rest of the medium lift LV segment and SSLV and Private Space startups handle the light lift LV segment. Future is bright. Lets hope SCE-200 is a resounding success.
 

gslv markIII

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Good catch, the slide says varying GTO payload from 7 tons to 16 tons by varying boosters. So maybe its 7 tons to GTO and 23 tons to LEO with two SC-120 boosters and then 16 tons to GTO and 41 tons to LEO with two SC-400 as boosters. And without the boosters it'll be 5 tons to GTO and 16 tons to LEO. HLV will be truly modular and cover the entire range from higher end of medium lift LVs to the entire heavy lift LV spectrum. While PSLV will handle rest of the medium lift LV segment and SSLV and Private Space startups handle the light lift LV segment. Future is bright. Lets hope SCE-200 is a resounding success.
Also, There was this website called spaceflight.io or something which allowed one to design launchers & calculate delta-v by entering ISp, stage empty weight, engine, payload, propellent loading, etc. Ever tried that? I cannot find it now.
 

gslv markIII

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HLV will be truly modular and cover the entire range from higher end of medium lift LVs to the entire heavy lift LV spectrum.
I guess such a system would be almost without parallel, anywhere in the world. A lot of modular concepts have remained ''concepts'' forever.
 

Okabe Rintarou

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Also, There was this website called spaceflight.io or something which allowed one to design launchers & calculate delta-v by entering ISp, stage empty weight, engine, payload, propellent loading, etc. Ever tried that? I cannot find it now.
Yeah tried it back when HLV was first announced, I think. But those calculations are only ballpark estimates. There are still others around. Like this one:-
https://launchercalculator.com/
 

Indx TechStyle

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News of chandrayan 3 suggests that GOI is interfering hard in ISRO's projects, i don't like it. BJP most probably pushed for chandrayan 2 though I don't have any sources but some parts of me believes that it was rushed due to the political pressure and probably wasn't tested enough.
Entire Chandryaan, Mangalyaan, Human Spaceflight Programme and nearly all other space exploration programs were started to due to BJP's interference AFAIK. Before Atal Bihari Vajpayee unloaded his dreams on ISRO, ISRO was nothing more than a satellite launcher and again most projects were put on backburner when Congress came.

In logical terms, Gaganyaan should be prioritised over Chandryaan. Chandrayaan-3 is nothing more than a repeat mission of Chandrayaan-2 to just react to failure. It is better delayed and launched as an in-situ lunar sampling or sample return mission and it can progress slowly with minute budget along. A mission-repeat is a waste.

Demonstration of human spaceflight and a space station like settlement in orbit will impart ISRO a far better experience in critical technologies which will be useful for long term deep space missions.

USSR, USA and China, all focused on achieving a permanent human settlement in orbit before even exploring moon, leave alone deep space. A space station is more critical than a Mars rover.
 

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You need K Sivan to leave. Only then things will take pace.
Nothing will change its pace. ISRO was screwed by corona.
K. Sivan actually tried to push things ahead of schedules (may be due to political pressure is a different topic).
He wasn't lucky with Cdy-2 and corona who screwed his plans for 10-12 launches per year.
 

vampyrbladez

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Nothing will change its pace. ISRO was screwed by corona.
K. Sivan actually tried to push things ahead of schedules (may be due to political pressure is a different topic).
He wasn't lucky with Cdy-2 and corona who screwed his plans for 10-12 launches per year.
Since this guy came in 2019, we were jinxed.
 
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Vamsi

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No one simply could push Gaganyaan and Chandrayaan-2 and rocket launch frequency this close to realisation as Sivan did. HSP was good as on hold before Sivan came.
Yep this is true, the moment he became chairman , he pushed for Gaganyaan, he gave a hint the day he was announced as the chairman. His predecessor Dr. A S Kiran Kumar didn't give much importance to the Human Space Flight Program
 

Vamsi

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As per my understanding there is a particular reason why CY-3 is delayed. Perfect launch window for CY-3 is in July 2022 (similar to that of July 2019 launch window of CY-2) . But govt asked them to launch Gaganyaan-1 before the Aug 15, 2022. Inorder to achieve the above two goals ,they must launch 2 GSLV-MK3'S within a month. But they don't have the capability to launch 2 Mk-3's within a month. It's not because they don't have Infrastructure to assemble 2 GSLV-MK3'S ,but because of the refurbishment of the 2nd Launch Pad. Hence they may have decided to go for Gaganyaan in July- Aug 2022, and CY-3 may be most probably in Dec 2022.
 

Akula

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They said the similar thing in 2019 but let's hope it doesn't get delayed further.

News of chandrayan 3 suggests that GOI is interfering hard in ISRO's projects, i don't like it. BJP most probably pushed for chandrayan 2 though I don't have any sources but some parts of me believes that it was rushed due to the political pressure and probably wasn't tested enough.

Issue was software and algorithm, they stated.
Bro, Chandrayaan-2 was delayed multiple times before its final launch date. We were hearing about its launch from 2017. And it finally got launched in 2019.
 

Akula

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I think most of you will agree with me on this. ISRO PR department needs to more.
1. Mangalyaan mission twitter handle stopped tweeting after 2-3 years. While other missions twitter handles are still active.
2. Chandrayaan-2 videos brought high hopes that ISRO's PR is improving but again they went on sleeping mode. Only on twitter their account is verified. ISRO should make videos on their LV's,facilities, interaction with their employees and more.
3. No info about CY-2 orbiter photos. Are they trying to find Transformers on dark side of moon? Why haven't they released more pictures of moon?
 

Maharaj skandgupta

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Do you suspect ISRO has conducted secret or very discreet launches in the past. They wouldn't be Pslv or GSLV of course, but something like RLV, Scramjet, Air Breathing rocket( ABR)?
I can't anything about it , but whatever it is it must be secretive
 

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