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.
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Tribals, Scheduled Castes preserved India's identity and soul despite foreign invasions: Bhagwat
Mumbai (PTI): RSS chief Mohan Bhagwat has said that despite foreign invasions and hardships, tribal communities and Scheduled Castes preserved the country's identity and soul, stressing the need to integrate them into the mainstream development process.
He was speaking on Saturday at the Karmayogi awards ceremony in Mumbai, where Union Road Transport and Highways Minister Nitin Gadkari was also present.
"Human life is defined by giving back to the world, as we are all part of one great family. A person works and spends for the betterment of society, not as a favour, but out of duty. In serving others, we foster our own development. By helping others to thrive, we elevate ourselves and grow as human beings. This principle is the core value of this Indian land, commonly known as a Hindu society," Bhagwat said.
"This is the society's enduring ethos, which has survived for thousands of years. For various reasons, partly because of our indifference and partly because of foreign invasion, those who preserved this ethos paid a heavy price," he said.
The foreign invaders found that this ethos, this value system of the society is its soul and the key to keeping it alive. So they ensured that those who tried to preserve this soul would be uprooted and face extreme hardships, the Rashtriya Swayamsevak Sangh (RSS) chief noted.
But despite foreign invasions and hardships, tribal communities and Scheduled Castes preserved the country's identity and its soul, he said.
"Despite such adversities, the country's core identity remained intact among tribal communities and those belonging to SC and ST groups," he said, emphasising the need to integrate them into the mainstream development process while ensuring they receive equal access to services and facilities.
Referring to global developments, Bhagwat said the present world is "stumbling forward" and struggling to maintain balance, and asserted that India could emerge as a stabilising force.
The country must not only safeguard its own interests but also extend support to the world, he said.
"The world should get to see that the country is not only solving its own misery and sorrow but also helping the world to address similar issues," he said.
The RSS chief stressed that service to society is not a favour but a duty that contributes to one's own development.
Helping others grow also elevates individuals and strengthens the collective fabric of society, he said.
The so-called educated and developed sections have, over time, distanced themselves from these communities, Bhagwat pointed out, and called for the need to bridge this gap.
The identities preserved by these communities represent the true identity of Indian society, he said and underlined that without identity, existence itself is at risk.
