Quote from: zubenelgenubi on 11/23/2021 01:38 amNobody in India is covering the launch delays?Especially if launch processing at Sriharikota has halted, either on orders from ISRO, or as some kind of strike?Looks like flooding in Andhra Pradesh is the current issue perpetuating the launch delays:After Covid, Andhra floods stall Isro’s sat launch missions this year [dated Nov. 22]QuoteAfter the Covid pandemic cast a shadow over Isro’s mission launches for over a year, now it is the flood situation in Andhra Pradesh that is stalling satellite launches at the SHAR launch centre in Sriharikota, a barrier island located in Nellore district of the state.Isro sends key satellites and rocket components from its centres in Kerala and Karnataka to Sriharikota by road for assembling and launch. As many arterial roads in Nellore have to be closed due to the floods, Isro is not able to finalise its launches.Isro chairman K Sivan told TOI, "We have been working on three launches, including the small satellite launch vehicle (mini-PSLV) launch, before the year ends. But due to heavy rain and floods in Andhra, we have to reassess the situation... We can decide on the three launches only when the flood situation improves."
Nobody in India is covering the launch delays?Especially if launch processing at Sriharikota has halted, either on orders from ISRO, or as some kind of strike?
After the Covid pandemic cast a shadow over Isro’s mission launches for over a year, now it is the flood situation in Andhra Pradesh that is stalling satellite launches at the SHAR launch centre in Sriharikota, a barrier island located in Nellore district of the state.Isro sends key satellites and rocket components from its centres in Kerala and Karnataka to Sriharikota by road for assembling and launch. As many arterial roads in Nellore have to be closed due to the floods, Isro is not able to finalise its launches.Isro chairman K Sivan told TOI, "We have been working on three launches, including the small satellite launch vehicle (mini-PSLV) launch, before the year ends. But due to heavy rain and floods in Andhra, we have to reassess the situation... We can decide on the three launches only when the flood situation improves."
Looks like technical problems have continued to plague all three upcoming ISRO missions:Teething troubles with indigenous tech cause for delay in 2 Sat launches; humidity halts SSLV [dated Dec. 1] (bolds mine)QuoteTeething troubles with multiple indigenous modules on one satellite and domestic mirror fabrication on the other are major causes for delay in the launch of two Earth Observation Satellites (EOSs) Isro had in its pipeline, while increased humidity has put on hold a key process on the first small satellite launch vehicle (SSLV) mission.TOI had reported earlier that Isro was hoping to launch three Earth Observations Satellites (EOSs) — two of them (EOS-4 or Risat-1A and EOS-6 or Oceansat-3 using PSLV and the third, EOS-2 or Microsat as part of the first developmental flight of the Small Satellite Launch Vehicle (SSLV) — in the last quarter of 2021.<snip>Further, the first scientist said that the delay in the first developmental flight of the Small Satellite Launch Vehicle (SSLV) — marking the beginning of a new class of launch vehicles in India — was delayed due to increased humidity caused by the rains."Because of high humidity, we had to suspend the insulation work. This process is critical and we are waiting for a better time to complete this, after which we can prepare for launch," the scientist said.
Teething troubles with multiple indigenous modules on one satellite and domestic mirror fabrication on the other are major causes for delay in the launch of two Earth Observation Satellites (EOSs) Isro had in its pipeline, while increased humidity has put on hold a key process on the first small satellite launch vehicle (SSLV) mission.TOI had reported earlier that Isro was hoping to launch three Earth Observations Satellites (EOSs) — two of them (EOS-4 or Risat-1A and EOS-6 or Oceansat-3 using PSLV and the third, EOS-2 or Microsat as part of the first developmental flight of the Small Satellite Launch Vehicle (SSLV) — in the last quarter of 2021.<snip>Further, the first scientist said that the delay in the first developmental flight of the Small Satellite Launch Vehicle (SSLV) — marking the beginning of a new class of launch vehicles in India — was delayed due to increased humidity caused by the rains."Because of high humidity, we had to suspend the insulation work. This process is critical and we are waiting for a better time to complete this, after which we can prepare for launch," the scientist said.
https://pib.gov.in/PressReleaseIframePage.aspx?PRID=1792514QuoteDepartment of SpaceDr S. Somanath, new Chairman, ISRO calls on Union Minister Dr Jitendra Singh and discusses status of “Gaganyaan” and other future Space missionsPosted On: 25 JAN 2022 4:27PM by PIB DelhiDr S. Somanath, who has taken over as the new Chairman of Indian Space Research Organisation (ISRO) called on Union Minister of State (Independent Charge) Science & Technology; Minister of State (Independent Charge) Earth Sciences; MoS PMO, Personnel, Public Grievances, Pensions, Atomic Energy and Space, Dr Jitendra Singh and discussed the status of “Gaganyaan” as well as other Space missions lined up for the near future.<snip>ISRO Chairman presented at brief about the forthcoming missions during the next three months. He mentioned a [RISAT-1A] PSLV [C52] scheduled for February 2022, OCEANSAT-3, INS 2B[, and] ANAND PSLV [C53] to be launched in March 2022[,] and SSLV-D1 Micro SAT in April 2022.
Department of SpaceDr S. Somanath, new Chairman, ISRO calls on Union Minister Dr Jitendra Singh and discusses status of “Gaganyaan” and other future Space missionsPosted On: 25 JAN 2022 4:27PM by PIB DelhiDr S. Somanath, who has taken over as the new Chairman of Indian Space Research Organisation (ISRO) called on Union Minister of State (Independent Charge) Science & Technology; Minister of State (Independent Charge) Earth Sciences; MoS PMO, Personnel, Public Grievances, Pensions, Atomic Energy and Space, Dr Jitendra Singh and discussed the status of “Gaganyaan” as well as other Space missions lined up for the near future.<snip>ISRO Chairman presented at brief about the forthcoming missions during the next three months. He mentioned a [RISAT-1A] PSLV [C52] scheduled for February 2022, OCEANSAT-3, INS 2B[, and] ANAND PSLV [C53] to be launched in March 2022[,] and SSLV-D1 Micro SAT in April 2022.
SSLV launch soonThe new launch vehicle, SSLV, is designed to reduce the cost of small satellites weighing up to 500 kilograms. This is a launch vehicle with a lot of commercial potential. All three stages use solid fuel. The latter also has a speed control engine that uses liquid fuel. All important experiments are done. The first test launch of the rocket will take place from Sriharikota in the first half of this year.
The space agency, which is hoping to carry out the first developmental flight of the SSLV — to put into orbit EOS-2 or Microsat and marking the beginning of a new class of launch vehicles in India — will conduct an important test in the next couple of days.“...The static test of the first stage of SSLV will be done in the next couple of days,” Somanath confirmed, without elaborating on the first developmental flight.
Earlier, Isro had completed the SSLV Payload Fairing (SPLF) functional qualification test successfully and other testing activities are in progress.
Today, ISRO successfully carried out the ground testing of the newly developed solid booster stage (SS1) for its new launch vehicle Small Satellite Launch Vehicle (SSLV) at Satish Dhawan Space Centre, Sriharikota, at 1205 hrs.Today’s successful testing has given sufficient confidence to proceed with the first developmental flight of SSLV (SSLV-D1). The remaining stages of SSLV (SS2 & SS3) have successfully undergone necessary ground tests and are ready for integration.
BENGALURU: Clearing the decks for the first flight of the Small Satellite Launch Vehicle (SSLV), the Indian Space Research Organisation (Isro) on Monday successfully carried out the ground testing of the newly developed solid booster stage (SS1) for the new launch vehicle at the Satish Dhawan Space Centre, Sriharikota.The test happened at around 12.05 pm. “This is the last test before the flight (developmental flight),” S Unnikrishnan Nair, director, Vikram Sarabhai Space Centre (VSSC), which is developing the SSLV, told TOI.
Nair further added that once proven, each SSLV can be integrated and launched within 10 days. “That’s the beauty of an all-solid stage launch vehicle,” he said.
According to VSSC, the SSLV is a three-stage launch vehicle configured with three solid propulsion stages and a liquid propulsion-based Velocity Trimming Module (VTM) as a terminal stage.“SSLV is 2m in diameter and 34m in length with a lift-off weight of around 120 tonnes. SSLV is capable of launching around 500kg satellites in a 500km planar orbit. The key features of SSLV are low cost, with low turnaround time, flexibility in accommodating multiple satellites, launch on-demand feasibility, minimal launch infrastructure requirements, etc,” the VSSC adds.
I thought ISRO originally supposed to launch SSLV start in late 2019.And they only done ground testing in 2022?
RFP to make small rocket SSLV to be issued after 3/4 successful launchesThe Indian Space Research Organisation (ISRO) plans to have about three/four space missions with its new rocket Small Satellite Launch Vehicle (SSLV) and then transfer the technology to the private sector, said a top official."The first flight of SSLV is slated this May. Then two/three more SSLV launches are also being planned. Following the successful launches the NewSpace India Ltd (NSIL) will issue the Request for Proposal (RFP) for the industry to take over manufacturing of the rocket," S.Somanath, Secretary, Department of Space and Chairman, ISRO told IANS.
"In the case of SSLV it is different. It is a new rocket and the industry will be involved after a couple of successful launches," Somanath remarked.
On Monday ISRO successfully ground tested the newly developed solid booster stage/engine for the SSLV. The motor was fired for 150 seconds.
An official had earlier told IANS that the second test will be with the engine that was kept for the rocket. A new first stage engine for the rocket has to be built.The other two stages/engines for the proposed SSLV have been tested earlier and are ready for integration.
The much-awaited first developmental flight of SSLV is scheduled for May, Isro will conduct two more this year. “After one in May, we’re looking to schedule one in August and one in December. All three are developmental flights,” Somanath said.
Dr Jitendra Singh said that EOS-02 satellite will be launched in second quarter of 2022.In a written reply to a question in the Rajya Sabha today, Dr Jitendra Singh said, EOS-02 is Technology demonstration satellite for various new technologies with applications that include agriculture, forestry, geology, hydrology, miniaturised power electronics, reaction wheels etc. and forming the payload for SSLV-1.He informed that the slated date of launch was during Quarter-4 of 2021, but the onset of the pandemic and consequent lock down and disruption in global as well as domestic supply chain were factors for the delay of spacecraft realisation due to non-availability of components, man power and facilities.
Isro's Small Satellite Launch Vehicle's maiden flight delayed, launch now between July-Sept
Is this NOTAM relevant?
Now delayed to Junehttps://www.nextias.com/current-affairs/28-04-2022/small-satellite-launch-vehicle-sslv
NSIL working on EoI to productionise SSLV; PSU to also give small sat platform tech to 10 firmsBENGALURU: After having picked the industry consortium for productionisation of Isro’s workhorse Polar Satellite Launch Vehicle (PSLV), Space PSU NewSpace India Limited (NSIL) is working on issuing an expression of interest (EoI) for the latest rocket from the space agency — the Small Satellite Launch Vehicle (SSLV). The PSU, which was also looking to productionise the GSLV-Mk3, which is now only expected to happen later. NSIL, chairman and managing director, Radhakrishnan D, said: “Next will be the SSLV. We are in the process of preparing the EoI for it, while GSLV-Mk3 will come at a later stage.”
LMW-ATC supplies hardware for launch vehicle developed by ISRO Lakshmi Machine Works (LMW) - Advanced Technology Centre (ATC), Coimbatore, has handed over to Vikram Sarabhai Space Centre (VSSC) inter stage structure that will be part of the Small Satellite Launch Vehicle (SSLV) developed by the Indian Space Research Organisation (ISRO).
A press release from the company said it took three months to complete the order and there are two more orders for VSSC that are under development at LMW - ATC.
LMW-ATC completed the delivery of the flight hardware for the S3C2 inter-stage structures of SSLV (Small Satellite Launch Vehicle Programme) of VSSC, ISRO. This is one among the major hardware delivered by LMW-ATC and it is scheduled for the upcoming launch of SSLV, the press release said.
