ISRO General News and Updates

[Vamsi]

SCE will work at which stage ? First stage.

Right now CE working at 3rd stage when rocket leave earth atmosphere.

For future version of GSLV-MK3, it will be 2nd stage, it will replace L110, for planned NGLV it will be both 1st & 2nd stages

 

[TopWatcher]

Some one has a data on comparison b/w LMV-3 & Falcon Heavy Rocket stages ?

 

[TopWatcher]

does falcon heavy rocket have so much fuel in store that can take payload to Pluto directly ?

 

[Vamsi]

does falcon heavy rocket have so much fuel in store that can take payload to Pluto directly ?

It depends on which kind of fuel you use, specific impulse of the engines used ,weight of propellant & empty weight of each....

 

[TopWatcher]

It depends on which kind of fuel you use, specific impulse of the engines used ,weight of propellant & empty weight of each....

Does GSLV MK3 able to take with full payload to moon directly ?

 

[Jimih]

Space Force would be a dream

 

[Vamsi]

So, CY-3 which was supposed to happen in early 2023 was delayed to June 2023 because of Oneweb

Jatan’s Space | Jatan Mehta | Substack

Exploring space and our Moon, for science and a better future for humanity. Click to read Jatan’s Space, by Jatan Mehta, a Substack publication with thousands of subscribers.

open.substack.com

Note: LVM3-M2 which launched Oneweb India-1 itself is CY-3's launcher as per the Annual Report 2020-21

 

[Maveli]

does falcon heavy rocket have so much fuel in store that can take payload to Pluto directly ?

It depends on which kind of fuel you use, specific impulse of the engines used ,weight of propellant & empty weight of each....

I assume you are referring to the upper stage(s)?

Otherwise, all of those factors are known for Falcon Heavy, and unlikely to change. The only variables are the upper stage and most importantly the mass and type of payload. It is estimated that with the current configuration, FH could send 3.5 tons to Pluto.

 

[NutCracker]

cool video

GSLV mk3 assembling all parts together

did we have Russian flag on the payload vehicle ?? could not see in the video due to same angle shown whole time.

 

[Maveli]

Does GSLV MK3 able to take with full payload to moon directly ?

There's no meaningful answer to that question. For any given rocket its "full payload" can only reach low earth orbit. If you want high earth orbit, geosynchronous orbit, or the moon, you have to reduce the payload accordingly.

The Oneweb launch was GSLV's heaviest payload yet but it only went into LEO. A GEO launch would be less mass, and a lunar target smaller still.

 

[Maveli]

did we have Russian flag in payload vehicle ?? could not see in the video due to same angle shown whole time.

Why would we? Those flags represent countries who contributed to the mission. Specifically those who are financing or partnering OneWeb.

 

[Love Charger]

You confused frenchie flag for russkie one most probably

did we have Russian flag on the payload vehicle ?? could not see in the video due to same angle shown whole time.

 

[dfcool]

what is this

how it is different from NISAR

 

[Indx TechStyle]

wasn't there some launchpad or building being built that isro was getting ready so that the rate of launches would increase?

what was the status of that .I am more concerned about future and sustainable launch rates.

Actually isro is shifting pslv launchpad to slp want shift mini launchers like sslv. Pvt launcher to tamilnadu launchpad which is under construction and want a dedicated FLP for Human space flight.

Third launch pad (TLP) within SDSC is being constructed in SDSC with facilities for heavy launchers, human spaceflight and reusable rockets. FLP and SLP will continue to serve for most expendable launches.

A new one in Kulsekaripattinam is being done in Tamil Nadu for small launchers like SSLV and those of Indian private space companies.

I think ISRO changing its strategy. Now gslv will see more commercial launch, as cost will be less for customers due to high payload. SSLV going to replace pslv.

No, PSLV will still be launched from 1st LP....there is a reason why they constructed new 'PSLV' integration Facility at FLP. Kulashekarapatnam space port is for both SSLV & Private launchers .

SSLV can never replace PSLV...both of em are in different payload capabilities

PSLV plays role of SSLV largley since it launches piggybacked SATs.
Both PSLV and GSLV Mk II are planned to be replaced in this decade by a new launcher called NGLV (HLV version without boosters). So any spacecraft heavier than 4.5 tonnes will be flown on LVM3 rocket or its equivalent NGLV variant.

Though a launcher of 1 to 2.5 tonnes cap will have to be developed to fill gap between SSLV and NGLV.

I think GSLV-MK3 will forever be called as LVM3.

That's good. SCE-200 based variant may get a new name though.

Naam is also important na, back to the topic, he also said there is also a Mk-2 launch with NVS-1, he said it will be year end, which year end does he mean, this year end i.e Dec 2022 or this financial year 2022-23 end i.e March 2023??

Dec 2022, it will likely the miss the December deadline though since both PSLV and SSLV are scheduled for this year.

SCE will work at which stage ? First stage.

Right now CE working at 3rd stage when rocket leave earth atmosphere.

SCE-200 is main engine. So it will be at core that is second stage (since first stage involves liftoff by S200).

does falcon heavy rocket have so much fuel in store that can take payload to Pluto directly ?

It depends on which kind of fuel you use, specific impulse of the engines used ,weight of propellant & empty weight of each....

Does GSLV MK3 able to take with full payload to moon directly ?

It has an upper stage to facilitate direct injection like ISRO's abandoned PAM-G program.

US, Russia and China have powerful upper stages to directly transfer payloads into MEO, GEO, TLI and TMI etc.. India meanwhile park satellites in transfer orbits like GTO and EPO (8-9k kilometers) from where we actuate to GEO by thrusters or shift orbits by them to reach moon and mars.
That also explains why Indian missions take more time than western ones to reach moon and Mars.

Since PAM-G program is no longer in sight, we can only see development of upper stage after success of SCE-200 and development of its variants.

Space Force would be a dream

That's a good start to have parity with current capabilities of US and China.
Kind of space force you are dreaming is beyond reach of any country for next 15 years.

 

[Indx TechStyle]

what is this

how it is different from NISAR

That's a new series of Sats probably comparable to SBIRS, to support anti ballistic missiles, cruise and ballistic missiles, drones and SAMs.

Space-Based Infrared System - Wikipedia

en.m.wikipedia.org

Or probably a new project to create powerful hybrid sats after gaining knowledge from EMISAT, Cartosats, RISATs a d HySIS.

 

[Swesh]

Space Force would be a dream

These are 18 microsats missions as per recent report

 

[Swesh]

Apart from all these launches expect agnikul first experimental flight this year

 

[TopWatcher]

Apart from all these launches expect agnikul first experimental flight this year

Skyroot & Agnikul seems serious in this. Let c one day they have heavy launches.

Any idea about timeline when they have their first launch ?

 

[Jimih]

Any idea about timeline when they have their first launch ?

Agnikul Cosmos said before the end of 2022, I doubt btw.

 

[Vamsi]

Agnikul Cosmos said before the end of 2022, I doubt btw.

It's sub-orbital, ISRO chairman said it's possible to happen this year end