Mission Gaganyaan: ISRO to launch first development flight of test vehicle on Oct 21 morning
Bengaluru (PTI): ISRO on Monday said it would commence unmanned flight tests for the Gaganyaan human spaceflight mission with the launch of a test vehicle between 7 am and 9 am on October 21 from Sriharikota spaceport to demonstrate the performance of the crew escape system.
In a message on social media platform X, the national space agency headquartered here, said, "Mission Gaganyaan: The TV-D1 test flight is scheduled for October 21, 2023 between 7 am and 9 am from SDSC-SHAR, Sriharikota."
ISRO Chairman S Somanath on Saturday told reporters three more test vehicle missions would be launched under the Gaganyaan programme after the TV-D1 test flight on October 21.
The Gaganyaan project envisages a demonstration of ISRO's human spaceflight capability by launching a human crew to an orbit of 400 km and bringing them safely back to earth by landing in Indian sea waters.
The Test Vehicle Development Flight (TV-D1) is aimed at testing the crew module (CM) that will carry Indian astronauts during the human spaceflight late next year.
The TV-D1 test flight involves launching the unmanned crew module to outer space, bringing it back to earth and recovering it after touchdown in the Bay of Bengal.
"The first test vehicle flight (of the Gaganyaan mission) will be conducted on October 21. After that, we have planned for three more test missions, D2, D3, D4. We will hold thorough tests during the test flight sequence," Somanath, who is also the secretary, Department of Space, had told reporters in Rameswaram.
According to ISRO, the test vehicle is a single-stage liquid rocket developed for this abort mission. The payloads consist of the Crew Module (CM) and Crew Escape System (CES) with their fast-acting solid motors, along with CM fairing (CMF) and Interface Adapters.
"The Crew Escape System with Crew Module will be separated from the Test Vehicle at an altitude of about 17 km. Subsequently, the abort sequence will be executed autonomously commencing with the separation of the CES and deployment of the series of parachutes, finally culminating in the safe touchdown of CM in the sea, about 10 km from the coast of Sriharikota," ISRO said.
The crew module is where the astronauts will be contained in a pressurised Earth-like atmospheric condition during the Gaganyaan mission. The CM for the Gaganyaan mission is under different stages of development.
For the TV-D1, the CM is an unpressurised version that has completed its integration and testing.
"With its complete set of parachutes, recovery aids actuation systems and pyros (pyrotechnic device used to separate spacecraft from rocket), the avionics systems in CM are in a dual redundant mode configuration for navigation, sequencing, telemetry, instrumentation and power. The CM in this mission is extensively instrumented to capture the flight data for evaluation of the performance of various systems," it said.
The crew module will be recovered after touchdown in the Bay of Bengal, using a dedicated vessel and diving team from the Indian Navy.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
Rishabh Pant's troubles continue as Punjab Kings push LSG towards exit door
Dharamsala, May 4 (PTI): Rishabh Pant lost the grip on his bat and the match simultaneously as Punjab Kings rode on heroics from the two 'Singhs' -- Prabhsimran and Arshdeep -- to literally push Lucknow Super Giants to the brink of elimination with a 37-run win in an IPL match here on Sunday.
It was Prabhsimran's 48-ball 91 that formed the cornerstone of Punjab Kings' unassailable 236 for 5 and any hopes of a remarkable chase was nipped in the bud by Arshdeep's (3/16 in 4 overs) now familiar Powerplay spell which summarily destroyed the opposition top-order.
This time, he got the three top run getters -- Mitchell Marsh (0), Aiden Markram (13) and the ever-dangerous Nicholas Pooran (6) -- to swing the match decisively in Punjab's favour. Ayush Badoni's (74 off 40 balls) effort was a good one albeit it came for a losing cause.
LSG were finally restricted to 199 for 7 in 20 overs and even if they win their last three games and get to 16 points from 14 games, their net run-rate can make things difficult for them.
Punjab Kings are now placed second with 15 points from 11 games and one more win could possibly clinch a place in top four for them.
But what is becoming an eyesore is LSG's Rs 27 crore worth skipper Pant's inexplicable approach which has fetched him a dismal 128 runs in 11 innings at a sub-100 strike-rate (99.22).
On the day, he scored 18 off 17 balls and that he is completely out of sync was evident in the manner he tried to throw the proverbial kitchen sink at an Azmatullah Omarzai delivery. There was no control in his shot as the bat took off on parabolic curve towards square leg and the ball went towards deep point.
Pant's misery was a testimony of LSG's wretched campaign that was lost at the auction table when the owner decided to go with a sub-standard bowling attack based on a half-fit talented pacer Mayank Yadav.
Mayank has already lost at least 10-15 yards of pace post rehabilitation under the watch of Nitin Patel at the National Cricket Academy.
On Sunday, he went for 60 runs off four overs with half a dozen of sixes struck off his bowling.
The pint-sized Prabhsimran packed a mean punch in his strokes as he blasted his way to a 48-ball 91 with the help of six fours and seven sixes.
The Punjab keeper-batter should have got his second IPL hundred but an ambitious switch hit off Digvesh Rathi saw him head back to the pavilion, nine runs short of what would have been a deserving milestone.
Towards the end, Shashank Singh scored 33 off 15 balls to take PBKS to what looked like an unassailable total. There were 16 sixes hit by Pujab Kings with 13 coming off pacers.
Prabhsimran was initially a passive partner as it was Australian Jos Inglis who launched the first attack with a hat-trick of sixes off Mayank Yadav, whose speed has decreased by at least 15 kmph post his intense rehab under Nitin Patel at the BCCI's erstwhile National Cricket Academy to recover from back injury.
However, once Inglis was dismissed, Prabhsimran, along with skipper Shreyas Iyer (45 off 25 balls), took control of the game. They were only helped by some atrocious fielding from Avesh Khan, who would probably go down as the worst fielder in the 18-year history of IPL.
Adding insult to injury, Prabhsimran took the tall MP fast bowler to the cleaners as he was pulled over mid-wicket for back-to-back maximums. Khan went for 57 in four overs and if around 15 runs due to his misfielding is added, he caused the maximum damage for his team.
The duo of Prabhsimran and Iyer added 78 runs in 7.5 overs before Rathi, LSG's best bowler on view, became the first spinner in the current season to account for Punjab Kings skipper's wicket.
But Prabhsimran continued like a man possessed and LSG bowlers were guilty of feeding to his strengths throughout the innings.
