Aditya L1 Mission LIVE: The Indian Space Research Organisation (ISRO)’s ambitious debut mission to study the Sun, Aditya L1, will reach its final destination on Saturday at 4pm. ISRO will perform the final manoeuvre on Saturday to inject Aditya-L1 spacecraft — the first space-based Indian observatory to study the Sun.
Aditya L1 will be injected into its final destination orbit near the Sun, some 1.5 million kilometres from the Earth.
The Polar Satellite Launch Vehicle (PSLV-C57) launched the Aditya-L1 spacecraft from the second launch pad of Satish Dhawan Space Centre (SDSC), Sriharikota, on 2 September in 2023.
After a flight duration of 63 minutes and 20 seconds, it was successfully injected into an elliptical orbit of 235×19500 km around the Earth.
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Jitendra Singh lauds ‘third success story’
On ISRO’s Solar Mission Aditya-L1 entering Halo Orbit, Union Minister of State Science & Technology Dr Jitendra Singh says, “This is the third success story in the trilogy of success stories registered by team ISRO… Now we have a huge stake in space, we have several satellites in space… India is no longer to be led by other countries, we are ready to lead others and the space economy is also going to be an important part of India’s growth story in the next 25 years…”
Aditya L1 ISRO’s first Sun mission LIVE: ISRO aims to gain insight into impact of of solar radiation on satellites
ISRO scientists involved in the Aditya-L1 project aim to gain insights into the impact of solar radiation on the increasing number of satellites in orbit, with a particular focus on phenomena affecting ventures like Elon Musk’s Starlink communications network.
Aditya L1 ISRO’s first Sun mission LIVE: S Somanath says ‘it is very satisfying for us’
On ISRO’s Solar Mission Aditya-L1 entering Halo Orbit, ISRO Chairman S Somanath says, “So it is very satisfying for us because it is the end of a long journey. 926 days from lift-off to now, it has reached the final point. So reaching the final point is always, an anxious moment, but we were very sure about it. So it happened as predicted. We are very happy.”
Aditya L1 ISRO’s first Sun mission LIVE: India is now proudly gazing the Sun , says Kharge
“India is now proudly gazing the Sun ! 🇮🇳
We join the nation in celebrating an extraordinary milestone by our dedicated scientists and space engineers at @isro , as India’s first solar observatory #AdityaL1 reaches its destination.
India began its journey to sun in 2006, when our scientists proposed a solar observatory with a single instrument for the Sun. In July 2013, ISRO selects the seven payloads for the Aditya-L1 mission.
This achievement is a testament to the vision, commitment and sincere efforts by our founders who made sure that India’s space research becomes a vital part of nation building and social development.”
Aditya L1 ISRO’s first Sun mission LIVE: ‘I think a moment of great pride for us just like the Chandrayaan program,’ says Jaishankar
“I I think it’s a great feat… I have seen the Space program for many years. I have been a member of the Space Commission. I think a moment of great pride for us just like the Chandrayaan program,” said external affairs minister S Jaishankar to news agency ANI.
Aditya L1 ISRO’s first Sun mission LIVE: President Droupadi Murmu congratulates ISRO
“Another grand feat accomplished by ISRO! As part of India’s maiden solar mission, Aditya L1, the observatory has been placed in the final orbit and reached its destination at Lagrange Point 1. Congratulations to the entire Indian scientist community for the great achievement! This mission will enhance our knowledge of the Sun-Earth System and benefit the entire humanity. Significant participation of women scientists in ISRO missions takes women empowerment too onto a higher orbit.”
Aditya L1 ISRO’s first Sun mission LIVE: ISRO to periodically manoeuvre spacecraft. Here’s why
ISRO will now perform periodic manoeuvres to keep the spacecraft in the intended orbit so that it can employ the seven payloads it has carried to observe the photosphere, chromosphere, and the outermost layers of the Sun (the corona) using electromagnetic and particle detectors.
Aditya L1 ISRO’s first Sun mission LIVE: ‘Excited to be far away’ tweets ISRO
“Greetings from Aditya-L1!
I’ve safely arrived at Lagrange Point L1, 1.5 million km from my home planet. 🌍Excited to be far away, yet intimately connected to unravel the solar mysteries #ISRO”
Aditya L1 ISRO’s first Sun mission LIVE: India, I did it. I have reached to my destination
Aditya L1 ISRO’s first Sun mission LIVE: PM Modi applauds ‘extraordinary feat’
I join nation in applauding extraordinary feat; we’ll continue to pursue new frontiers of science: PM Modi on Aditya L-1.
Aditya L1 ISRO’s first Sun mission LIVE: ‘From Moon walk to Sun Dance…’ Jitendra Singh sun mission
Union Minister for Science and Technology Jitendra Singh has tweeted, “From Moon walk to Sun Dance! What a glorious turn of year for Bharat! Under the visionary leadership of PM @narendramodi , yet another success story scripted by Team #ISRO. #AdityaL1 reaches its final orbit to discover the mysteries of Sun-Earth connection.”
Aditya L1 ISRO’s first Sun mission LIVE: PM Modi hails ‘another landmark’ for India
India creates yet another landmark. India’s first solar observatory Aditya-L1 reaches it destination. It is a testament to the relentless dedication of our scientists in realising among the most complex and intricate space missions. I join the nation in applauding this extraordinary feat. We will continue to pursue new frontiers of science for the benefit of humanity.
Aditya L1 ISRO’s first Sun mission LIVE: What does MAG payload do?
Magnetometer payload is capable of measuring interplanetary magnetic fields at the L1 point. The payload is developed at Laboratory for Electro Optics Systems, Bengaluru.
Aditya L1 ISRO’s first Sun mission LIVE: Trivia on Sun
Sun, a hot glowing ball of hydrogen and helium gases, is the nearest star and the largest object in the solar system, whose estimated age is 4.5 billion years. It is about 150 million-km from Earth, and is the source of energy for the entire solar system. Without solar energy, life on Earth, as we know, can not exist. The gravity of the sun holds all the objects of the solar system together.
Aditya L1 ISRO’s first Sun mission LIVE: ASPEX & PAPA payloads to study the solar wind and energetic ions
Aditya Solar wind Particle EXperiment and Plasma Analyser Package for Aditya payloads are designed to study the solar wind and energetic ions, as well as their energy distribution. ASPEX is developed at Physical Research Laboratory, Ahmedabad. PAPA is developed at Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram.
Aditya L1 ISRO’s first Sun mission LIVE: SoLEXS & HEL1OS payloads to study X-ray flares from the Sun
Solar Low Energy X-ray Spectrometer and High Energy L1 Orbiting X-ray Spectrometer are designed to study the X-ray flares from the Sun over a wide X-ray energy range. Both these payloads are developed at U R Rao Satellite Centre, Bengaluru.
Aditya L1 ISRO’s first Sun mission LIVE: Director of Space Applications Centre, Nilesh M Desai speaks on Aditya L1 mission | WATCH
Aditya L1 ISRO’s first Sun mission LIVE: When was satellite launched?
The Polar Satellite Launch Vehicle (PSLV-C57) launched the Aditya-L1 spacecraft from the second launch pad of Satish Dhawan Space Centre (SDSC), Sriharikota, on September 2 last year. After a flight duration of 63 minutes and 20 seconds, it was successfully injected into an elliptical orbit of 235×19500 km around the Earth. The spacecraft underwent a series of maneuvers thereafter and headed Sun-Earth Lagrange Point 1(L1), having escaped the Earth’s sphere of influence.
Aditya L1 ISRO’s first Sun mission LIVE: How Aditya-L1 is made?
The seven payloads of Aditya L1 are indigenously developed by different laboratories in the country. Its VELC instrument is made at the Indian Institute of Astrophysics, Bangalore; SUIT instrument at Inter-University Centre for Astronomy and Astrophysics, Pune; ASPEX instrument at Physical Research Laboratory, Ahmedabad; PAPA payload at Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram; SoLEXS and HEL1OS payloads at U R Rao Satellite Centre, Bangalore, and the Magnetometer payload at the Laboratory for Electro Optics Systems, Bangalore.
Aditya L1 ISRO’s first Sun mission LIVE: What is Aditya-L1 mission?
Aditya-L1, described as a “satellite dedicated to the comprehensive study of the Sun,” was successfully launched by the Polar Satellite Launch Vehicle (PSLV-C57) on September 2, 2023. Representing the first space-based observatory class Indian solar mission, Aditya-L1 is specifically designed for the in-depth study of the Sun.
Aditya L1 ISRO’s first Sun mission LIVE: What next for Aditya L1 after reaching Lagrange Point 1?
Aditya-L1 is anticipated to remain for the next five years. Situated at a distance of 1.5 million km from Earth, the Aditya-L1 satellite, launched from Sriharikota on September 2, will execute a crucial manoeuvre upon reaching L1.
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Aditya L1 ISRO’s first Sun mission LIVE: I’m going to enter Halo-Orbit, posts ISRO
Aditya L1 ISRO’s first Sun mission LIVE: What is Lagrange point 1?
According to ISRO officials, the spacecraft will be placed in a halo orbit around Lagrange point 1 (L1) of the Sun-Earth system, about 1.5 million km from the Earth. The L1 point is about one per cent of the total distance between the Earth and the Sun.
Aditya L1 ISRO’s first Sun mission LIVE: Major Objectives
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, and propagation of particles and fields, officials said.
The major science objectives of the Aditya-L1 mission are:
– Study of the Solar upper atmospheric (chromosphere and corona) dynamics.
– Study of chromospheric and coronal heating, physics of the partially ionized 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 the 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 (CMEs).
– 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).
Aditya L1 ISRO’s first Sun mission LIVE: What will happen during the final orbit manoeuvre?
A maneuver that would last only a few seconds will see a 180-degree flip of the spacecraft Aditya L1. This brings the thrusters to the front to slow down the spacecraft while aiming for a different orbit.
Aditya L1’s liquid apogee motors are currently in a hibernated state due to the cold space environment, since its last firing that was a couple of months ago.
When ISRO will commanded the motors, they will instantly fire for the specific duration and perform the manoeuvre precisely at that particular moment. However, this execution requires precision to avoid overdoing, underdoing or mistiming the motor firing.
Aditya L1 ISRO’s first Sun mission LIVE: What if the spacecraft misses halo orbit?
If the spacecraft fails to perform the manoeuvre in case of overfiring or underfiring of the engine and misses the sweet spot in the expected orbit range then there would be trouble. The spacecraft may miss the gravity capture by the L1 point and enter a higher orbit throwing it off the desired orbit. This would lead to higher fuel consumption which is very crucial for longer mission life.
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Aditya L1 ISRO’s first Sun mission LIVE: India’s solar mission to be placed in final orbit today, says ISRO
Aditya L1 Mission: The Aditya-L1 satellite, India’s first space-based solar observatory, is scheduled to reach its designated orbit at 4 pm on January 6th.
To read more click here
Aditya L1 ISRO’s first Sun mission LIVE: What is inside Aditya L1 Satellite?
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.
Aditya L1 ISRO’s first Sun mission LIVE: Satellite to be placed in Halo Orbit. What this means?
According to ISRO, the Aditya L1 satellite will be placed in a halo orbit around Lagrange point 1 (L1) of the Sun-Earth system, about 1.5 million km from the Earth.
The L1 point is about one per cent of the total distance between the Earth and the Sun.
A satellite in a halo orbit around the L1 point has the major advantage of continuously viewing the Sun without any occultations/eclipses, they said, adding, this will provide a greater advantage in observing solar activities and its effect on space weather in real time.
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