Chethan Kumar Profile picture
Nov 3 10 tweets 5 min read
#Space #Update #Thread

An R&D centre & manufacturing factory for #Spacetaxis or #OTVs & propulsion systems for rockets & satellites are expected to begin first phase ops on a 5-acre facility at the aerospace park near @BLRAirport by late 2023. 1/n
The new facility, which once fully operational is expected to be worth $76mn will be established by @BellatrixAero, which signed an MoU with the government of Karnataka on Wednesday. 2/n
“Having a wide range of thrusters designed to overcome challenges associated with incumbent tech by providing better performance, longer life, reduced costs etc, we now aim for large scale production and research facilities,” Yashas Karanam of @BellatrixAero told me. 3/n
The firm said it plans to set up its 2.1-lakh-sq ft space factory to meet its global demand with a capacity to manufacture several thousand propulsion systems every year, in addition to the state-of-the-art facility to manufacture its OTVs. 4/n
The facility is set to generate high-tech jobs both for R&D (scientists) & production. “Overall, over the next 3-4 years, we're looking at 350-400 jobs at this facility. We should be able to begin ops as part of 1st phase implementation in the 2nd half of 2023,” Karanam said. 5/n
The firm may eventually up investment to touch $100mn, but Karanam said “it is too early to comment”. At the new facility, aside from the space taxi, it will manufacture four thrusters: The Hall thruster, microwave plasma thruster, nano thrusters and green propulsion systems. 6/n
@BellatrixAero, which last year tested India’s first privately built Hall thruster — a highly efficient electric propulsion system for satellites — has since signed an agreement with L&T to enhance capacity... 7/n
It was also the first to develop the world’s first commercial Microwave Plasma Thruster, which uses water as fuel, and for which the company had bagged an order from Isro. 8/n
A Hall Thruster, initially developed in Russia, is a device that employs electric and magnetic fields to ionise propellant gases such as Xenon to produce thrust. Today, it is the most reliable and time-tested electric propulsion system in the global market. 9/n
And as per @BellatrixAero, this (Hall) thruster also forms a critical technology for its Space taxi or OTV. The firm has collaborations with other space companies — SatSure, Skyroot Aerospace and Dhruva Space — on its ambitious orbital transfer vehicle (OTV) mission. n/n

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More from @Chethan_Dash

Nov 3
#JUSTIN #Important #Thread 

Indian radar-imaging satellite — #Risat2 — has made an uncontrolled re-entry into Earth’s atmosphere and landed at the predicted impact point in the Indian Ocean near Jakarta. 1/n Image
The re-entry happened on October 30, at around 12.06am, the Indian Space Research Organisation — @isro —has confirmed. 2/n
“Launched onboard PSLV-C12 in April 2009, Risat-2 weighed about 300kg and had carried 30kg fuel for an initial designed life of four years...." 3/n
Read 12 tweets
Nov 1
Here We Go: #Update #Thread

As #GSLVMk3 or #LVM3 prepares for its second commercial launch, @isro efforts on enhancing its weight-lifting capacity is gaining pace. I hear that the qualification tests for semi-cryo (SC120) are expected to be completed in a couple of months. 1/n
#GSLVMk3 is India’s heaviest rocket yet. Here’s some perspective: Between May 26, 1999 and Oct 22, 2022, @isro launched 345 foreign satellites, all on #PSLV, which together weigh 9,326.4kg. On Oct 23, 2022, in its first commercial mission, #LVM3 launched 5,796kg. 2/n
Of course, these missions are incomparable given that most of the foreign satellites launched by PSLV were ride-sharing payloads and include tens of small, micro and nano satellites… 3/n
Read 14 tweets
Oct 29
#UPDATE #JUSTIN #Thread

Yesterday, @isro successfully carried out the flight acceptance hot test of a CE-20 engine for a duration of 25 seconds at its high altitude test facility in Mahendragiri. 1/n Image
This engine is earmarked for the next GSLV-Mk3 mission — the LVM3-M3 — identified for the launch of the next set of 36 OneWeb India-1 satellites. 2/n
"The cryogenic upper stage of the LVM3 vehicle (C25 stage) is powered by a CE-20 engine working with the LOX-LH2 propellants combination. This engine develops a nominal thrust of 186.36 kN in vacuum," Isro said. 3/n
Read 7 tweets
Oct 21
#Thread #Space #India

Space PSU @NSIL_India, which as part of a commercial contract will launch 36 satellites for @OneWeb onboard #GSLVMk3 at 12.07am Sunday, is not only hopeful of a successful mission, but also confident of future prospects. 1/n
The #GSLVMk3, India’s heaviest launch vehicle, has so far had four missions, including the launch of Chandrayaan-2 after which it was officially declared operational. 2/n
Already sitting on the launchpad, a success will not only add to the GSLV-Mk3’s scorecard but also give @isro & @NSIL_India a second launch vehicle to offer to commercial customers. 3/n
Read 13 tweets
Oct 17
#Thread #Update #Space

@isro, which has completed over 200 missions, developed multiple cutting-edge tech, including spin-offs directly benefiting healthcare and other sectors, is scouting for a consultancy firm to conduct a socio-economic impact audit of the space prog. 1/n
That Isro spent most of the first 50 years developing systems & tech meant for societal use in line with Sarabhai’s vision to empower the last citizen using space tech notwithstanding, questions about the need for a Space programme in India has been a recurring rhetoric. 2/n
While several Isro centre’s have, in different forms, been assessing their performances over the years, a full-fledged formal audit of this scale has not been conducted for several years. 3/n
Read 15 tweets
Oct 2
#Breaking #Update #Mars #Thread

India’s Mars Orbiter Mission — #MOM — which was designed to last for 6 months when launched on Nov 5, 2013, has lost communication with the ground station, bringing an end to its life after 8 long years. 1/n

Pics: 1st image & Mars dust (isro)
@isro is working out the details of whether the spacecraft ran out of fuel and battery power, or whether communication was lost because of an automated manoeuvre while moving out of a long eclipse changing the direction of the antenna. 2/n
However, multiple sources confirmed that it would not be possible to recover the spacecraft. Isro’s UR Rao Satellite Centre (URSC) director on September 27 communicated the same and Isro will officially announce it soon, a scientist said. 3/n
Read 11 tweets

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