Tag: aditya-l1

ISRO Successfully Launches Gaganyaan Test Flight Abort Mission

Indian Space Research Organisation (ISRO) Chairman S Somanath on Saturday announced the success of the ‘TV-D1’ (Test Vehicle Development Flight 1) in the Gaganyaan Mission. The test vehicle was launched on the second attempt after it had faced an engine ignition problem at 8:45am IST. ISRO briefly aborted the launch of the first uncrewed test flight (TV-D1 Flight Test). Later, it said that the errors have been identified and corrected and the second launch was scheduled for 10:00am IST today. 

Addressing the media, ISRO Chairman S Somanath said, “I am very happy to announce the successful accomplishment of the TV-D1 mission. The purpose of this mission was to demonstrate the crew escape system for the Gaganyaan program through a test vehicle demonstration in which the vehicle went up to a Mach number, which is slightly above the speed of sound, and initiated an abort condition for the crew escape system to function.”

“The crew escape system took the crew module away from the vehicle, and subsequent operations, including the touch-down at sea, have been very well accomplished. and we have confirmation of the data for all of this,” he added. 

ISRO chief S Somanath congratulated scientists after the successful touchdown of the crew escape module. 

On the occasion, Mission Director S Sivakumar said, “This is like a never before attempt. It is like a bouquet of three experiments put together. We have now seen the characteristics of all three systems with what we wanted to test through this experiment or this mission. The test vehicle, the crew escape system, the crew module everything, we have perfectly demonstrated in the first attempt. All the systems performed well.”

“We had been at penance for the last 3 to 4 years and the D-day was today. We are very happy to be able to do it on the very first attempt,” he added. 

This Flight test vehicle Abort mission was conducted to demonstrate the performance of the Crew escape system as part of the Gaganyaan mission.

The mission objectives of the TV-D1 launch were Flight demonstration and evaluation of Test Vehicle subsystems; flight demonstration and evaluation of Crew Escape System including various separation systems; crew module characteristics; and deceleration system demonstration at higher altitudes and its recovery.

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 Systems (CES) with their fast-acting solid motors, along with CM fairing (CMF) and Interface Adapters. This flight simulated the abort condition during the ascent trajectory corresponding to a Mach number of 1.2 encountered in the Gaganyaan mission.

This mission represents a significant milestone in India’s effort to demonstrate that it is possible to send humans into space.

The Gaganyaan project envisages a demonstration of human spaceflight capability by launching a crew of three members into an orbit of 400km for a 3-day mission and bringing them safely back to earth by landing in Indian waters.

This programme will make India the fourth nation to launch a manned spaceflight mission after the US, Russia, and China. Building on the success of the Indian space initiatives, including the recent Chandrayan-3 and Aditya L1 missions, Prime Minister Narendra Modi directed that India should now aim for new and ambitious goals, including setting up ‘Bharatiya Antariksha Station’ (Indian Space Station) by 2035 and sending the first Indian to the Moon by 2040.

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ISRO Launches Aditya-L1, India’s Maiden Sun Study Mission, Aboard PSLV Rocket

Following the success of India’s moon landing, the country’s space agency ISRO launched a rocket on Saturday to study the sun in its first solar mission, Aditya-L1.

The rocket left a trail of smoke and fire as scientists clapped, a live broadcast on the Indian Space Research Organisation’s (ISRO) website showed. 

The broadcast was watched by nearly 5,00,000 viewers, while thousands gathered at a viewing gallery near the launch site to see the lift-off of the probe, which will aim to study solar winds, which can cause disturbance on earth commonly seen as auroras.

Named after the Hindi word for the sun, the Aditya-L1 launch follows India beating Russia late last month to become the first country to land on the south pole of the moon. While Russia had a more powerful rocket, India’s Chandrayaan-3 out-endured the Luna-25 to execute a textbook landing.

The Aditya-L1 spacecraft is designed to travel about 1.5 million km over four months to a kind of parking lot in space where objects tend to stay put because of balancing gravitational forces, reducing fuel consumption for the spacecraft.

Those positions are called Lagrange Points, named after Italian-French mathematician Joseph-Louis Lagrange. 

The mission has the capacity to make a “big bang in terms of science,” said Somak Raychaudhury, who was involved in the development of some components of the observatory, adding that energy particles emitted by the sun can hit satellites that control communications on earth. 

“There have been episodes when major communications have gone down because a satellite has been hit by a big corona emission. Satellites in low earth orbit are the main focus of global private players, which makes the Aditya L1 mission a very important project,” he said. 

Scientists hope to learn more about the effect of solar radiation on the thousands of satellites in orbit, a number growing with the success of ventures like the Starlink communications network of Elon Musk‘s SpaceX.

“The low earth orbit has been heavily polluted due to private participation, so understanding how to safeguard satellites there will have special importance in today’s space environment,” said Rama Rao Nidamanuri, head of the department of earth and space sciences at the Indian Institute of Space Science and Technology.

Longer term, data from the mission could help better understand the sun’s impact on earth’s climate patterns and the origins of solar wind, the stream of particles that flow from the sun through the solar system, ISRO scientists have said.

Pushed by Prime Minister Narendra Modi, India has privatised space launches and is looking to open the sector to foreign investment as it targets a five-fold increase in its share of the global launch market within the next decade.

As space turns into a global business, the country is also banking on the success of ISRO to showcase its prowess in the sector. 

© Thomson Reuters 2023 

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Aditya-L1 Launch Countdown Begins: When and Where to Watch the Live Streaming of ISRO’s Maiden Solar Mission

Aditya-L1, India’s first solar mission, is all set to be launched today (September 2) at 11.50am IST from the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh’s Sriharikota. The launch for the solar mission has been announced days after the Indian Space Research Organisation (ISRO) achieved success in safe landing on the moon surface with its Chandrayaan-3 mission. Aditya-L1 will be carried aboard ISRO’s PSLV rocket, which will undergo a space journey of 125 days. The name Aditya in the mission name stands for Sun.

Aditya-L1 Solar mission launch: When and where to watch online

The Indian Space Research Organisation will launch its maiden solar mission at 11.50am IST. According to the space agency, the Aditya-L1 launch live streaming will be made available on various social media platforms, starting at 11.20am IST. One can watch the live event  of Aditya-L1 launch on ISRO’s Facebook page, and ISRO’s Youtube channel. The live streaming of the launch event will also be available on ISRO Website. Users can also click on the embedded video here to watch the launch of the Aditya-L1 mission.

Aditya-L1 is being launched to study the Sun. It will be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system. This point is located around 1.5 million km from the Earth. L1 point gives the advantage to the satellite by enabling it to view sun without any eclipses. According to ISRO, there are total five Lagrange points denoted as L1, L2, L3, L4 and L5.

The spacecraft will be carrying seven payloads. It will take a journey of 125 days, while the satellite is expected to be put into orbit in mid-January. 

IRSO plans on studying the sun as it the nearest star to our Earth. A comprehensive of the sun can help scientists understand about others stars in our Milky Way as well as in various other galaxies.

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After Chandrayaan-3 Success, ISRO Next Plans to Launch Aditya-L1 to Study Sun

On the heels of the success of the Chandrayaan-3 moon landing, India’s space agency has set a date for its next mission — this time to study the sun. 

The Aditya-L1, India’s first space observatory for solar research, is getting ready for launch at the country’s main spaceport in Sriharikota, the Indian Space Research Organisation (ISRO) told reporters at its satellite command centre this week, as scientists and crew celebrated the moon mission’s success.

“We are planning to launch in the first week of September,” said ISRO chairman S Somanath.

What will Aditya-L1 do?

Named after the Hindi word for the sun, the spacecraft is India’s first space-based solar probe. It aims to study solar winds, which can cause disturbance on earth and are commonly seen as “auroras”.

Longer term, data from the mission could help better understand the sun’s impact on earth’s climate patterns.

Recently, researchers said the European Space Agency/NASA Solar Orbiter spacecraft had detected numerous relatively small jets of charged particles expelled intermittently from the corona — the sun’s outer atmosphere — which could help shed light on the origins of solar wind. 

How far will it travel?

Hitching a ride on India’s heavy-duty launch vehicle, the PSLV, the Aditya-L1 spacecraft will travel 1.5 million km in about four months to study the sun’s atmosphere.

It will head to a kind of parking lot in space where objects tend to stay put because of balancing gravitational forces, reducing fuel consumption for the spacecraft.

Those positions are called Lagrange Points, named after Italian-French mathematician Joseph-Louis Lagrange. 

How much does the mission cost?

In 2019, the government sanctioned the equivalent of about $46 million (nearly Rs. 380 crore) for the Aditya-L1 mission. ISRO has not given an official update on costs.

The Indian space agency has earned a reputation for world-beating cost competitiveness in space engineering that executives and planners expect will boost its now-privatised space industry.

The Chandrayaan-3 mission, which landed a spacecraft on the lunar south pole, had a budget of about $75 million (nearly Rs. 620 crore).

© Thomson Reuters 2023

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ISRO’s Aditya-L1 Space Observatory Satellite Arrives at Sriharikota Spaceport Ahead of Launch

Aditya-L1, the first space-based Indian observatory to study the Sun, is getting ready for its launch soon, ISRO said on Monday.

The satellite realised at U R Rao Satellite Centre here, has arrived at the ISRO’s spaceport in Sriharikota in Andhra Pradesh, the Bengaluru-headquartered national space agency said in an update on the mission.

“Mostly September first week,” an ISRO official told PTI when asked about the date of the launch.

The spacecraft is expected to be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system, which is about 1.5 million kilometers from the Earth.

A satellite placed in the halo orbit around the L1 point has the major advantage of continuously viewing the Sun without any occultation/eclipses, ISRO noted. “This will provide a greater advantage of observing the solar activities and its effect on space weather in real-time,” it said.

The spacecraft carries seven payloads to observe the photosphere, chromosphere, and the outermost layers of the Sun (the corona) using electromagnetic and particle and magnetic field detectors.

Using the special vantage point L1, four payloads will directly view the Sun and the remaining three payloads would carry out in-situ studies of particles and fields at the L1, thus providing important scientific studies of the propagatory effect of solar dynamics in the interplanetary medium.

“The suits of Aditya L1 payloads are expected to provide the most crucial information to understand the problem of coronal heating, coronal mass ejection, pre-flare, and flare activities and their characteristics, dynamics of space weather, propagation of particle and fields etc.,” ISRO said.

The major science objectives of the Aditya-L1 mission are: the study of solar upper atmospheric (chromosphere and corona) dynamics; study of chromospheric and coronal heating, physics of the partially ionised plasma, initiation of the coronal mass ejections, and flares; observe the in-situ particle and plasma environment providing data for the study of particle dynamics from the Sun; physics of solar corona and its heating mechanism; diagnostics of the coronal and coronal loops plasma: temperature, velocity and density; development, dynamics, and origin of coronal mass ejections; identify the sequence of processes that occur at multiple layers (chromosphere, base and extended corona) which eventually leads to solar eruptive events; magnetic field topology and magnetic field measurements in the solar corona; drivers for space weather (origin, composition and dynamics of solar wind).

The instruments of Aditya-L1 are tuned to observe the solar atmosphere, mainly the chromosphere and corona, while the in-situ instruments will observe the local environment at L1. 

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