Indian Space Program: News & Discussion - Sept 2016

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby jaysimha » 25 Jul 2019 13:43

http://www.unoosa.org/oosa/search.html?q=chandrayaan-2

ISRO's Future missions

Huuuuuuuuuuuuuuuuge amount of Info.
BRFites to download for their perusal.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby jaysimha » 25 Jul 2019 16:05

ISRO – Achievements
(from June 2018 to June 2019)
http://www.unoosa.org/documents/pdf/cop ... ech13E.pdf

UNNATI
UNispace Nanosatellite Assembly & Training by ISRO
http://www.unoosa.org/documents/pdf/cop ... ech14E.pdf


http://www.unoosa.org/documents/pdf/cop ... ech32E.pdf

Indian Space Science & Exploration : Global Perspective

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby krishGo » 26 Jul 2019 02:10

ldev wrote:
Mort Walker wrote:The existing L110 2nd stage of the GSLV MkIII could be scaled up and use 4 S200 SRBs to lift a payload of over 12 tons. Of course the HLV is in development for 2024 to take up over 10 tons GTO.

Perhaps sights should be set to lift 100 tons GTO? Maybe budgets aren’t there to do that.


And look what we have here:

India to buy Russian rocket engines for it's space program

If this is indeed the case then the RD 180 using RP-1/LOX will be a great buy as it generates ~3800 Kn of thrust. It has also been used by the US for it's Atlas V launchers for over a decade now. Very efficient engine. ISRO's under development SCE200 which also uses kerosene/LOX is only rated at ~1800 Kn. If the L110 stage is replaced with a RD 180 and it is ignited at lift off then the combination of the S200 boosters + the RD 180 will result in a total thrust of >14000 Kn at lift off. This will be equal to the Ariane V. And the existing CE20 LOX/LH2 engine is powerful enough at 200 Kn for now.

In theory this should allow the GSLV 3 to loft comparable payloads to LEO and GTO as the Ariane V i.e. 20 tons to LEO and 10 tons to GTO.

But it will be a set back for in house engine development for ISRO.



We need to see confirmation from ISRO's side and some more information on this otherwise it is all just pure speculation. It is funny how the headline "India to buy…" becomes "India plans on buying" in the report. There are some instances of of reports in the Russian media viz-a-viz the Indian space program turning out to be to be false. An example is the instance when the Russians claimed we had contracted them for a orbital flight of Soyuz to train our astronauts before they flew on the Orbital vehicle (as Gaganyaan was then called)

Now if we are in the realm of speculation, I would speculate that there are some delays foreseen in the SCE-200 program and ISRO doesn't want this to affect the schedule for replacing the core of Mk3 with a semi-cryo core. They could have enquired the Russians about the RD-191, which is more or a less a like-for-like replacement of our SCE-200. So, we would have a semicryo core and once the SCE-200 is ready, we just switch the core to use our engines (not as easy as it sounds but the egines are in the same thrust class). This would allow us to have vehicle capable of launching 6 tons to GTO in the next 2-3 years as opposed to the next 4-5 years if we wait for SCE-200 and there are delays.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby kit » 26 Jul 2019 03:49

krishGo wrote:
ldev wrote:
And look what we have here:

India to buy Russian rocket engines for it's space program

If this is indeed the case then the RD 180 using RP-1/LOX will be a great buy as it generates ~3800 Kn of thrust. It has also been used by the US for it's Atlas V launchers for over a decade now. Very efficient engine. ISRO's under development SCE200 which also uses kerosene/LOX is only rated at ~1800 Kn. If the L110 stage is replaced with a RD 180 and it is ignited at lift off then the combination of the S200 boosters + the RD 180 will result in a total thrust of >14000 Kn at lift off. This will be equal to the Ariane V. And the existing CE20 LOX/LH2 engine is powerful enough at 200 Kn for now.

In theory this should allow the GSLV 3 to loft comparable payloads to LEO and GTO as the Ariane V i.e. 20 tons to LEO and 10 tons to GTO.

But it will be a set back for in house engine development for ISRO.



We need to see confirmation from ISRO's side and some more information on this otherwise it is all just pure speculation. It is funny how the headline "India to buy…" becomes "India plans on buying" in the report. There are some instances of of reports in the Russian media viz-a-viz the Indian space program turning out to be to be false. An example is the instance when the Russians claimed we had contracted them for a orbital flight of Soyuz to train our astronauts before they flew on the Orbital vehicle (as Gaganyaan was then called)

Now if we are in the realm of speculation, I would speculate that there are some delays foreseen in the SCE-200 program and ISRO doesn't want this to affect the schedule for replacing the core of Mk3 with a semi-cryo core. They could have enquired the Russians about the RD-191, which is more or a less a like-for-like replacement of our SCE-200. So, we would have a semicryo core and once the SCE-200 is ready, we just switch the core to use our engines (not as easy as it sounds but the egines are in the same thrust class). This would allow us to have vehicle capable of launching 6 tons to GTO in the next 2-3 years as opposed to the next 4-5 years if we wait for SCE-200 and there are delays.



why would it delay in house development, actually it might help , finances are not the bother here

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Vips » 26 Jul 2019 04:24

Chandrayaan-2 mission: From Godrej to L&T, private sector plays a key role.

Private sector players had a significant role to play in the success of the state-run ISRO's Chandrayaan-2 mission with companies like Larsen & Toubro (L&T) and Godrej group contributing with hardware and testing solutions.

Dubbed as 'Baahubali', the Rs 978 crore unmanned mission lifted-off from the second launchpad at the spaceport into skies at 2.43 pm and successfully placed the 3,850-kg Chandrayaan-2 into the earth orbit about 16 minutes later.

Apart from these two large corporates, companies like Ananth Technologies, MTAR Technologies, Inox Technologies, Lakshmi Machine Works, Centum Avasarala and Karnataka Hybrid Microdevices, are reported to have contributed to the successful launch of the mission.

"Godrej's contribution to the mission includes critical equipment such as L110 engine and CE20 engine for the launcher GSLV Mk III, thrusters for the orbiter and lander, and components for the DSN antenna," Godrej Aerospace Executive Vice President and Business Head SM Vaidya said in a statement.

Commenting on the success, JD Patil, Whole-time Director, and Senior Executive Vice President for L&T's Defence and L&T-NxT businesses said we have played a vital role in powering ISRO's second historic mission to the moon, by providing number of critical flight hardware, sub-systems and assemblies.

The GSLV MkIII launch vehicle was powered at lift-off by twin S200 solid boosters comprising head end, middle and nozzle end segments manufactured at L&T's Powai Aerospace Workshop. Besides manufacturing, L&T also carried out Proof Pressure Testing to ascertain the integrity and impeccable fabrication quality of the entire S200 solid boosters. The company also supplied hardware like Umbilical and Honey Comb Deck Panels that were used in this launch.

Patil further said L&T has played a significant role in the Indian space programme and has been associated with all generations of launch vehicles including SLV3, ASLV, PSLV, GSLV to the latest GSLV Mk-III, which is being used for the Chandrayaan-2.

Besides private sector, the State-run Steel Authority of India (SAIL) also supplied special-quality stainless steel from its Salem steel plant for the requirements for stringent specifications, superior surface finish and close tolerances for the mission.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby srin » 26 Jul 2019 06:45

ldev wrote:But ISRO has it's own road map. The present weak link is the L110 stage and ISRO has recognized that and is already developing the SCE 200 RP-1/LOX as a replacement. However the problem is that it has only marginally more thrust than the L110 stage it is replacing ~1850 Kn vs 1600 Kn. So yes, payload will go up but only marginally from 4t to 5t at GTO. Maybe that is why there are these rumblings about import of Russian engines.


Is there anything that can be done with the L110 engine ? Wiki chacha says there are quite a few UDMH/N204 hypergolic fuel engines (with smaller thrust output though)with ISP of 325-330s (eg: RD-0210). Compare this to the wiki brochure spec of Vikas at 290s ISP and 335s for SCE-200.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby sivab » 26 Jul 2019 08:46

krishGo wrote:This would allow us to have vehicle capable of launching 6 tons to GTO in the next 2-3 years as opposed to the next 4-5 years if we wait for SCE-200 and there are delays.


Just a minor correction. There seems to be no actual work happening on SC200 stage yet (reqd for 6 ton to GTO). They have issued a tender for augmenting launch pad with isrosene with 20 month schedule or end of Mar. 2021. They have issued a tender for trailer to transport SC120 stage (11500kg dry mass) from IPRC to SHAR. Both SC120 and SC200 will use SCE-200 engine, but as of now only SC120 stage seems to be in the works along with C32 stage (7400kg dry mass). So they are planning on just replacing L110+C27 with SC120+C32 with expected first flight sometime in mid 2021 with 4+ton to GTO. You can find above tenders through google. The trailer tender has dimensions and weights of different stages (L110/CUS/C27/C32/SC120).

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 26 Jul 2019 13:53

SC 200 cold flow tests etc were over long back. The test stand for hot firing is being constructed at IPRC and when complete testing will occur. There was some plan to test in Russia but that seems to have been shelved

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Kakarat » 26 Jul 2019 14:30

It seems the Second Launch center will be coming up at Kulasekarapattinam

Villagers oppose land acquisition for Isro rocket launchpad at Kulasekarapattinam in Tamil Nadu

“The blueprint for the same has been prepared and our panchayat too is covered under area to be acquired,"


https://epaper.dinakaran.com/c/36560403 (Detailed but in Tamil)

Image

From : https://www.reddit.com/r/ISRO/comments/ ... ite_being/

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby krishGo » 26 Jul 2019 17:28

Kakarat wrote:It seems the Second Launch center will be coming up at Kulasekarapattinam


The committe looking into possible locations for the new location for a luch complex seems to have zeroed in on Kulasekarapattinam. Gujarat, Kanyakumari seems like the other options they looked into.

The main criteria for the new lauch complex will be better performance for Polar orbits. Polar Launches from SHAR currently have to spend extra fuel to avoid flying over Sri Lanka. There was some gossip on NaMo being keen to have the new launch center in Gujarat but Kulasekarapattinam seems to have won due to better security (not close to Pakistan) and also providing the capability to launch into other orbits (GTO) (If built in Gujarat, GTO launches would have been impossible)

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby kit » 26 Jul 2019 17:32

looks like those NGOs have woken up in TN :-? .. wont thiruvananthapuram be a better bet, it already has the TERLS

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby sivab » 26 Jul 2019 20:22

prasannasimha wrote:SC 200 cold flow tests etc were over long back. The test stand for hot firing is being constructed at IPRC and when complete testing will occur. There was some plan to test in Russia but that seems to have been shelved


You are mixing up SCE-200 (engine) with SC-200 (stage). They are two different things. Cold flow test was done for SCE-200.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby pankajs » 27 Jul 2019 00:51

https://www.moneycontrol.com/news/scien ... 42141.html
ISRO's commercial arm launched 239 satellites in last 3 years, earned Rs 6,289 crore: Govt
In reply to a question in Lok Sabha, the minister of state in the Prime Minister's office Jitendra Singh said the government has already set up NewSpace India Limited (NSIL) under the administrative control of Department of Space (DOS) on March 6, 2019 to commercially exploit the research and development work of Indian Space Research Organisation (ISRO) centres and constituent units of DOS.

He said that the NSIL was set up to meet the ever-increasing demands of Indian space programme and to commercially exploit the emerging global space market.

"A total of 239 satellites were commercially launched by Antrix Corporation Limited during the last three years. The total revenue from operations during the last three years is Rs 6289.05 crore," he said.

About a Billion dollar in 3 years. Not bad! Could easily be scaled up to a Billion a year.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Ashokk » 28 Jul 2019 03:10

Mission Mangal | Official Trailer | 15 Aug

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 28 Jul 2019 10:22

Please divert all ion engine/electric propulsion discussions here and not to the Chandrayaan thread>
FWIW
Image

Image


Image

GSAT 19 is already using hall effect thrusters for North South station keeping.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Indranil » 29 Jul 2019 03:07

GSAT 20 is supposed to be an all electric propulsion based satellite. But, is this engine being developed within ISRO? I had seen a tender in 2017 where ISRO was trying to buy one for its 2.5 ton and 3.5 ton class satellites. Or is the development being carried on at Bellatrix which ISRO is hand holding?

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby RKumar » 29 Jul 2019 14:10

^ I hope ISRO start using torx screws, details - https://en.wikipedia.org/wiki/Torx

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby abhik » 29 Jul 2019 20:40

SSLV test launch moved to after September (did not realise it was so close to being ready).
https://timesofindia.indiatimes.com/ind ... 368911.cms

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 29 Jul 2019 21:40

GSAT hall thruster is developed in house. As far as the SE200 it has been developed and awaits an aproproiate test stand for firing. This is being constructed. You would not do a firing test of a stage without the engine

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Indranil » 29 Jul 2019 22:21

abhik wrote:SSLV test launch moved to after September (did not realise it was so close to being ready).
https://timesofindia.indiatimes.com/ind ... 368911.cms

Was supposed to be in July-August.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 29 Jul 2019 22:47

Dr Sivan clearly mentioned that they will test the SSLV only after Chandrayaan's touch down on the moon. Probabaly enough human resources need to be diverted to Chandrayaan that SSL:V launch took a backburner.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby krishGo » 30 Jul 2019 02:09

kit wrote:looks like those NGOs have woken up in TN :-? .. wont thiruvananthapuram be a better bet, it already has the TERLS


Well, TERLS can theoretically still launch payload to Polar orbits. But the problem is the small sounding rocket launchpad cannot scale up. The launchpad is surrounded by thick human habitation (there is an SBI 500 m away from the launcher :lol: ). Expansion would cost a lot of money as it is valuable land.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby kit » 30 Jul 2019 03:18

krishGo wrote:
kit wrote:looks like those NGOs have woken up in TN :-? .. wont thiruvananthapuram be a better bet, it already has the TERLS


Well, TERLS can theoretically still launch payload to Polar orbits. But the problem is the small sounding rocket launchpad cannot scale up. The launchpad is surrounded by thick human habitation (there is an SBI 500 m away from the launcher :lol: ). Expansion would cost a lot of money as it is valuable land.


What about a launch pad on the sea away from land, use a decommissioned oil rig :mrgreen: .. anyway imagination growing wild :((

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Varoon Shekhar » 30 Jul 2019 03:24

prasannasimha wrote:Dr Sivan clearly mentioned that they will test the SSLV only after Chandrayaan's touch down on the moon. Probabaly enough human resources need to be diverted to Chandrayaan that SSL:V launch took a backburner.


That's curious. ISRO is pretty large, with many projects and missions going on simultaneously. You would expect that the SSLV team would be different( for the most part) than the team handling Chandrayaan-2, hugely demanding as it is. Actually, it would be great for ISRO's image and reputation, if it conducted a couple of missions before Chandrayaan-2 reaches the moon. Perhaps the real issue is that satellites like Cartosat-3 and the SSLV are simply not going to be ready before Sept 7 ?

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Sonugn » 03 Aug 2019 19:32

Foundation stone of Space Situational Awareness Control Centre by Chairman, ISRO
https://www.isro.gov.in/update/03-aug-2019/foundation-stone-of-space-situational-awareness-control-centre-chairman-isro
Space Situational Awareness & Management (SSAM) has become an internationally significant area due to the ever growing manmade space debris population and the increased collision threat with operational spacecraft.
Chairman, ISRO laid foundation stone for Space Situational Awareness Control Centre at Peenya, Bengaluru on 2nd August, which is an important milestone in the progress of ISRO.

ISRO has taken special attention to this aspect. ISRO has set up a Directorate of Space Situational Awareness and Management aiming at protecting high valued space assets from space debris close approaches and collisions. To carryout systematically all activities related to SSAM, a control centre is being established at Bengaluru.

The Control Centre would facilitate the intensified activities foreseen for SSAM, in view of increasing debris population and operational space assets. The control centre would host a range of activities pertaining to protection of Indian Space assets from inactive satellites, pieces of orbiting objects, near earth asteroids and adverse space weather conditions. It would assimilate the tracking data of inactive satellites from indigenous observation facilities and generates useful information from bare observations through analysis. For sustainable use of space, the control centre would enable research activities pertaining to active debris removal, space debris modelling and mitigation.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby kit » 04 Aug 2019 01:40

Sonugn wrote:Foundation stone of Space Situational Awareness Control Centre by Chairman, ISRO
https://www.isro.gov.in/update/03-aug-2019/foundation-stone-of-space-situational-awareness-control-centre-chairman-isro
Space Situational Awareness & Management (SSAM) has become an internationally significant area due to the ever growing manmade space debris population and the increased collision threat with operational spacecraft.
Chairman, ISRO laid foundation stone for Space Situational Awareness Control Centre at Peenya, Bengaluru on 2nd August, which is an important milestone in the progress of ISRO.

ISRO has taken special attention to this aspect. ISRO has set up a Directorate of Space Situational Awareness and Management aiming at protecting high valued space assets from space debris close approaches and collisions. To carryout systematically all activities related to SSAM, a control centre is being established at Bengaluru.

The Control Centre would facilitate the intensified activities foreseen for SSAM, in view of increasing debris population and operational space assets. The control centre would host a range of activities pertaining to protection of Indian Space assets from inactive satellites, pieces of orbiting objects, near earth asteroids and adverse space weather conditions. It would assimilate the tracking data of inactive satellites from indigenous observation facilities and generates useful information from bare observations through analysis. For sustainable use of space, the control centre would enable research activities pertaining to active debris removal, space debris modelling and mitigation.


wouls be interesting to see whether there are any new space tracking systems coming up., ISRO is currently using NASAs deep space commun relays

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby krishGo » 09 Aug 2019 02:35

kit wrote:
krishGo wrote:
Well, TERLS can theoretically still launch payload to Polar orbits. But the problem is the small sounding rocket launchpad cannot scale up. The launchpad is surrounded by thick human habitation (there is an SBI 500 m away from the launcher :lol: ). Expansion would cost a lot of money as it is valuable land.


What about a launch pad on the sea away from land, use a decommissioned oil rig :mrgreen: .. anyway imagination growing wild :((


Good question!

One important requirement for off shore launch ships / rigs is a rocket that can be transported after being fully assembled. Either you have a fully liquid powered rocket that can be assembled horizontally and then you transport it to the launchpad, fuel & launch it OR you have a full rockets that can be stored in silos & launched on demand like SLBMs.

Currently all Indian rockets are vertically assembled because of the need to stack up the solid segments. Vertical assembly is generally more expensive due to the need for special assembly & transport infrastructure.

Also, offshore launches haven't gained much traction due to a variety of factors like dependence on sea conditions, limited availability of infrastructure & not allowing enough flexibility or scalability.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby jaysimha » 13 Aug 2019 12:15

==General Information==
Image
National Conference on Cryogenics for Space
12th to 14th december 2019
Thiruvananthapuram
http://www.nccs2019.org.in/brochure/Brochure.pdf
http://www.nccs2019.org.in/

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby ldev » 15 Aug 2019 05:51

The founder of ISRO, Vikram Sarabhai and ISRO pays him tribute by naming the Chandrayaan 2 moon lander after him:

Remembering Vikram Sarabhai on his 100th birthday

President Abdul Kalam recounts how Vikram Sarabhai spotted him and nurtured him as a young scientist:


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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Sonugn » 16 Aug 2019 20:12

Isro sowing seeds of future technology to help next generation go beyond Earth
Image

Also work will be undertaken for a mini PSLV/sSLV @ 500 Kg payload

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 16 Aug 2019 23:50

deleted

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 17 Aug 2019 01:01

NORAD ID: 44441
Int'l Code: 2019-042A
Perigee: -1,193.5 km
Apogee: 404,883.5 km
Inclination: 21.8 °
Period: 15,759.1 minutes
Semi major axis: 208215 km
RCS: Unknown
Launch date: July 22, 2019
Source: India (IND)
Launch site: SRIHARIKOTA (SRI)

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Indranil » 17 Aug 2019 07:57

sivab wrote:
krishGo wrote:This would allow us to have vehicle capable of launching 6 tons to GTO in the next 2-3 years as opposed to the next 4-5 years if we wait for SCE-200 and there are delays.


Just a minor correction. There seems to be no actual work happening on SC200 stage yet (reqd for 6 ton to GTO). They have issued a tender for augmenting launch pad with isrosene with 20 month schedule or end of Mar. 2021. They have issued a tender for trailer to transport SC120 stage (11500kg dry mass) from IPRC to SHAR. Both SC120 and SC200 will use SCE-200 engine, but as of now only SC120 stage seems to be in the works along with C32 stage (7400kg dry mass). So they are planning on just replacing L110+C27 with SC120+C32 with expected first flight sometime in mid 2021 with 4+ton to GTO. You can find above tenders through google. The trailer tender has dimensions and weights of different stages (L110/CUS/C27/C32/SC120).

Thank you for reminding me of the trailer-tender. I am actually very happy. I had forgotten about it and was very sad that ISRO was only developing only an SC200 stage. I was thinking of all liquid designs that ISRO could be building quickly and SC120 kept coming up because it can work as both the core first stage as well as a booster.

Imagine this:
1. Swap out GSLV Mk2 S139 core with SC120
2. SC120 (core) + 4 PSOMs + C32
3. SC120 (core) + 2 L40s (boosters) + C32
4. SC120 (throttled core) + 2 SC120 (boosters) + C32
5. SC120 (throttled core) + 4 SC120 (boosters) + C32

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Indranil » 17 Aug 2019 11:47

Options 1 and 3 are not possible due to stage length.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Ashokk » 17 Aug 2019 13:58

It's official, in a 1st, Isro invites private firms to build 5 PSLVs
BENGALURU: It is now official. In a major push for PM Narendra Modi’s Make-in-India initiative, the Indian Space Research Organisation (Isro) has finally invited Indian companies to build five Polar Satellite Launch Vehicles (PSLVs).
Confirming this on Friday, Isro chairman K Sivan told TOI: “At this moment we have called for an EOI (expression of interest), and it is not open for any foreign firm. Isro has been considering this for a while, and we think this will boost the Make-in-India initiative of the government.”

This marks a major shift in the way Isro, now in its 50th year, has been working over the decades. According to a senior official from the Vikram Sarabhai Space Centre (VSSC) the cost of one fully integrated PSLV launch vehicle is Rs 200 crore. This means that the value of the deal Isro is offering private industry—to build five PSLVs—is at least Rs 1,000 crore.

However, Sivan did not wish to comment on the cost. The space agency’s new commercial arm—New Space India Limited (NSLI)—has been made responsible for handling the process of technology transfer to the industry.

Having begun functioning under six months ago, on March 6, 2019, NSLI was established to, among other things, achieve the productionisation of PSLV through Indian industry.
Elaborating on whether Indian industry is ready to take up such projects, Sivan said: “We think they are. There are some big companies like HAL and L&T that already work with us on PSLV. We are confident that they will, together as a consortium, be able to participate in this process and deliver results.”
In fact, NSLI has mandated that only a consortium can participate in the EoI, and is expecting submissions by September 6. In January, Sivan had said that HAL and L&T have already signed an agreement and that the production will soon begin. “There will also be other companies like Godrej and many more smaller companies,” Sivan said on Friday.
Any PSLV launch sees more than 150 industries, big and small, contribute to the vehicle. Some of the key contributors have been HAL and L&T.
HAL, which has been Isro’s partner in multiple segments—whether it is making the PSLV and GSLV structures or contributing to the CE-20 cryogenic engine—has been hoping to lead the consortium to build PSLV since last year. In fact, as on date, HAL has orders for 24 sets of PSLV structures and two sets of GSLV.

L&T too has had a long association with Isro that dates back to 1975, and has been part of building PSLV over the years. In fact, the S139 solid rocket boosters that the PSLV has uses motor casings made by L&T. The company has also been vocal about its business with Isro increasing.
Col HS Shankar, CMD, Alpha Design, which has been making satellites for Isro, said: “This is a welcome move. It is the right time for Isro to have opened up the market for private players, and we are confident that the industry will deliver.” While he confirmed that Alpha is aggressively looking at participating in the process, he did not comment on whether it will be along with HAL and L&T or as a separate consortium.

prasannasimha
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 17 Aug 2019 15:41

SC 200 partial engine hot test will be done sometime shortly till test stand is fully constructed. The engine perse would have been designed but full testing cannot be done till the test stand is completed

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby prasannasimha » 17 Aug 2019 15:44

One advantage of nonstaged combustion is portions of engine can be separately tested before full firing

sivab
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby sivab » 17 Aug 2019 20:56

SCE-200 is a staged combustion engine.

Varoon Shekhar
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Re: Indian Space Program: News & Discussion - Sept 2016

Postby Varoon Shekhar » 18 Aug 2019 03:29

Just to clear up for lay people like myself :) - there is no perigee and apogee with Chandrayaan-2 at this time, right? It is headed straight for the moon. Then there is the 'lunar capture', which leads to a new set of perigees and apogees around the moon, until it sets in at a more or less 100km orbit indefinitely.

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Re: Indian Space Program: News & Discussion - Sept 2016

Postby juvva » 18 Aug 2019 08:38

Varoon Shekhar wrote:Just to clear up for lay people like myself :) - there is no perigee and apogee with Chandrayaan-2 at this time, right? It is headed straight for the moon. Then there is the 'lunar capture', which leads to a new set of perigees and apogees around the moon, until it sets in at a more or less 100km orbit indefinitely.

CY-2 is still in elliptical orbit around the earth, this orbit will get it close to the approaching moon around 20th August and enable lunar capture.


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