Aditya L1 Launch Highlights: Observatory's First Orbit-Raising Manoeuvre To Occur On This Date

Aditya-L1, India’s first space-based solar observatory to study the Sun, was launched today (September 2), at 11:50 am IST, atop a PSLV-XL (Polar Satellite Launch Vehicle) rocket, from Sriharikota.

ABP News Bureau Last Updated: 02 Sep 2023 08:27 PM
Aditya L1 Launch Highlights: Observatory's First Orbit-Raising Manoeuvre To Occur On This Date

Aditya-L1's first orbit-raising manoeuvre will occur on September 3, 2023. 

Aditya L1 Live: Till Now Only Earth-Based Observations Have Been Used In India To Study The Sun, Says Senior Engineer At Nehru Planetarium

OP Gupta, a senior engineer at Nehru Planetarium, New Delhi, said after the successful launch of Aditya-L1 that till now, only Earth-based observatories have been used in India to study the Sun. He said there is such an observatory in Udaipur. However, Aditya-L1 marks the first time that a space-based solar observatory will study the Sun. 



Aditya L1 Launch Live: It Is Indeed A Sunshine Moment For India, Says Union Minister Jitendra Singh

After the successful launch of Aditya-L1, Union Minister of Science and Technology Jitendra Singh said that this is “indeed a sunshine moment for India”.



Aditya L1 Launch Live: Thank You PM Modi For Telling Us That Sky Is Not The Limit, Says Union Minister Jitendra Singh

Union Minister of Science and Technology Jitendra Singh thanked Prime Minister Narendra Modi after the successful launch of Aditya-L1. He said, "Thank you, PM Modi for making this happen by opening up new vistas for India's new space sector and telling us that sky is not the limit”.



Aditya L1 Launch Live: Journey To L1 Is Very Long, Says ISRO Chief

ISRO Chief S Somanath said after the launch of Aditya-L1 that the journey of the spacecraft to L1 is a very long one.



Aditya L1 Launch Live: PM Modi Congratulates ISRO For Successful Launch Of India’s First Solar Mission

After the successful launch of Aditya-L1, India’s first solar mission, Prime Minister Narendra Modi congratulated the scientists and engineers at the Indian Space Research Organisation (ISRO).

Aditya L1 Launch Live: India’s First Solar Observatory Placed Into Low-Earth Orbit

The Aditya-L1 mission is accomplished because PSLV-C57 successfully placed the solar observatory into low-Earth orbit.

Aditya L1 Launch Live: One Hour Since Launch Of India's First Solar Mission

It has been an hour since the launch of Aditya-L1, India's first solar mission.

Aditya L1 Launch Live: Aditya-L1 To Become Second Spacecraft To Be Placed At L1, After NASA-ESA SOHO

Aditya-L1 is likely to become the second spacecraft to be placed at Lagrange point 1 (L1), after the NASA-ESA Solar & Heliospheric Observatory (SOHO).

Aditya L1 Launch Live: PSLV Third Stage Successfully Separates

The third stage of the PSLV rocket carrying Aditya-L1 has successfully separated from the launch vehicle.

Aditya L1 Launch Live: India’s First Solar Observatory Begins Journey Towards Sun

ISRO has successfully launched Aditya-L1, India’s first space-based observatory to study the Sun. Aditya-L1 began its journey towards the Sun after being launched atop a PSLV-XL rocket, at 11:50 am IST on Saturday, September 2.

Aditya L1 Launch Live: ISRO To Launch India's First Solar Mission In Less Than 2 Minutes

ISRO is set to launch Aditya-L1 in less than two minutes.

Aditya L1 Launch Live: India's First Solar Mission To Be Launched In Less Than 5 Minutes

ISRO will launch Aditya-L1, India's first solar mission, in less than five minutes.

Aditya L1 Launch Live: PSLV-C57 To Place India's First Space-Based Solar Observatory In Low-Earth Orbit

PSLV-C57, the 59th flight of the Polar Satellite Launch Vehicle (PSLV), will place Aditya-L1, India's first space-based solar observatory, in low-Earth orbit.

Aditya L1 Launch Live: India's First Solar Mission To Take Off In Less Than 10 Minutes

Aditya-L1, India's first space-based solar observatory to study the Sun, will take off in less than 10 minutes.

Aditya L1 Live: Launch Preparations Are Underway At Sriharikota. WATCH

Preparations for the launch of Aditya-L1, India’s first space-based solar observatory to study the Sun, are underway at Sriharikota.



Aditya L1 Launch Live: Aditya L1 To Be Launched Atop PSLV-XL Rocket, Mission Is 59th Flight Of PSLV

ISRO is set to launch Aditya-L1, India’s first space-based solar observatory to study the Sun, at 11:50 am IST on Saturday. Aditya-L1 will be launched atop a PSLV-XL rocket. The mission, also known as PSLV-C57, marks the 59th flight of PSLV, and the 25th flight of the PSLV-XL rocket. Aditya-L1 will be placed in an Earth-bound orbit.

Aditya L1 Launch Live: ISRO Begins Livestream Event For Launch Of India's First Solar Mission

ISRO has started the livestream event for the launch of Aditya-L1, India's first space-based solar observatory to study the Sun. 


Aditya L1 Launch Live: ISRO Solar Observatory To Begin Journey Towards Sun In Less Than An Hour

Aditya-L1 is set to be launched towards the Sun in less than an hour from now. It is India's first space-based solar observatory to study the Sun.

Aditya L1 Launch Live: Data From Mission Will Help Explain Phenomena Occurring In Atmosphere, Says Former ISRO Chairman. WATCH

Former ISRO Chairman G. Madhavan Nair said Saturday that the data from Aditya-L1 will help explain various phenomena taking place in the atmosphere, and aid in climate change studies.



Aditya L1 Launch Live: Aditya-L1 Will Be First Mission To Look At Innermost Part Of Sun’s Corona, Says IIA Director. WATCH

Annapurni Subramaniam, Director, Indian Institute of Astrophysics (IIA), Bangalore, said Saturday that the IIA has delivered the Visible Line Emission Coronagraph (VELC), which is the main instrument onboard Aditya-L1. She explained that Aditya-L1 is the first mission which will look at the innermost part of the Sun’s corona.



Aditya L1 Launch Live: Aditya-L1 Will Observe The Sun Simultaneously In Several Wavelengths, Says Former TIFR Professor. WATCH

Mayank N Vahia, a retired professor from the Tata Institute of Fundamental Research, said Saturday that Aditya-L1 will observe the Sun simultaneously in optical, ultraviolet and X-ray wavelengths.



Aditya L1 Launch Live: This Is A Very Unique Mission From India To Study The Sun, Says Physical Research Laboratory Director. WATCH

Dr Anil Bharadwaj, the director of Physical Research Laboratory, Ahmedabad, said Saturday that Aditya-L1 is a very unique mission from India to study the Sun. He also said that it may take a month to commission all the experiments onboard Aditya-L1. After that, Aditya-L1 will be able to continuously start observing the Sun.



Aditya L1 Live: Space Enthusiasts Arrive At Satish Dhawan Space Centre To Witness Aditya-L1’s Launch. WATCH

On Saturday, space enthusiasts and school students arrived at Satish Dhawan Space Centre in Sriharikota to witness the launch of Aditya-L1.



Aditya L1 Live: School Students Reach Sriharikota To Witness ISRO Solar Mission’s Launch. WATCH

On Saturday, school students visited the Satish Dhawan Space Centre in Sriharikota to witness the launch of the Indian Space Research Organisation’s (ISRO’s) Aditya-L1 mission at 11:50 am IST. It is India’s first solar mission, and aims to study the Sun.



Aditya L1 Launch Live: 5 Points On Why India's First Solar Mission Is Unique

Aditya-L1, India's first solar mission, is unique because of several reasons.


1. Aditya-L1 will be placed in a halo orbit around Lagrange point (L1), allowing the spacecraft to save fuel and have an uninterrupted view of the Sun for five years.


2. It is the first spacecraft that aims to achieve spatial resolution of the solar disk in near-ultraviolet bands.


3. Aditya-L1 will study coronal mass ejection dynamics close to the solar disk.


4. The spacecraft has the ability to detect coronal mass ejections and solar flares.


5. The observatory will study the energy anisotropy of solar winds. In other words, it will study the difference in solar wind energies in different directions.

Aditya L1 Launch Live: Proud Feeling As An Indian To Witness Country Reach New Heights, Says Srinagar Tourist

Expressing her happiness at the scheduled launch of Aditya-L1 today at 11:50 am, a tourist at Srinagar said, “It is a really proud feeling as an Indian to witness our country reach new heights because of the hard work of our scientists.”



Aditya L1 Launch: Aditya-L1 Is A Big Step-Forward For India, ISRO Will Play A Big Role In Space Economy, Says Former ISRO Scientist. WATCH

Former scientist at the Indian Space Research Organisation (ISRO) Manish Purohit said Saturday that Aditya-L1 is a big step-forward for ISRO and India. He also said that with the new space policy, it has been clearly mandated that ISRO will play a big role in the space economy.



Aditya L1 Launch Live: India's First Solar Mission To Begin Journey Towards Sun In Less Than 2 Hours

Aditya-L1, India's first space-based solar observatory to study the Sun, is set to begin its journey in less than two hours from now.

Aditya L1 Launch Live: With Aditya-L1, India Will Also Make Observations Of The Sun, Says Delhi Planetarium’s Programming Manager. WATCH

Prerna Chandra, a programming manager at Jawaharlal Nehru Planetarium, Delhi, said Saturday that space agencies of other countries have already conducted observations on the Sun, but India does not have a solar observatory. Therefore, through Aditya-L1, India will also have observations on the Sun. These observations will help us understand space weather and upcoming space missions, she said.






Aditya L1 Launch Live: Aditya-L1’s Most Important Instrument Will Study Sun’s Corona, Says Astronomer RC Kapoor. WATCH

Astronomer RC Kapoor said Saturday that the launch day of Aditya-L1 is a very important day, and that the most important instrument on Aditya-L1 will study the corona of the Sun, which is the outermost layer. 



Aditya L1 Launch Live: Locals In Varanasi Perform Havan For The Successful Launch Of India’s First Solar Mission. WATCH

On Saturday, locals in Varanasi were seen performing Havan for the successful launch of Aditya-L1, India’s first solar mission.



Aditya L1 Launch Live: ‘It Is Technically Very Challenging To Acquire The L1 Point’, Says Former ISRO Scientist. WATCH

Explaining the destination of Aditya-L1, former ISRO scientist and Padma Shri awardee Mylswamy Annadurai said that it is technically very challenging to acquire the L1 point, enter an orbit around that, and to survive there for the five years with the need to make accurate findings. He also said that this is scientifically going to be rewarding because seven instruments will try to understand the dynamics and phenomena of what is happening in the Sun.



Aditya L1 Launch Live: Congress Leader Surendra Rajput Congratulates ISRO Ahead Of Launch Of Aditya-L1. WATCH

Ahead of the launch of Aditya-L1, India’s first space-based solar observatory to study the Sun, Congress leader Surendra Rajput congratulated the scientists and the people who established the Indian Space Research Organisation (ISRO).



Aditya L1 Launch Live: India's First Solar Mission To Begin Journey Towards Sun In Less Than 3 Hours

Aditya-L1, India's first solar mission, will begin its journey towards the Sun in less than three hours from now.

Aditya L1 Launch Live: India’s First Solar Mission To Be Launched In About Three Hours

Aditya-L1 will be launched in about three hours from now, at 11:50 am IST, from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh.

Aditya L1 Launch Live: India's First Solar Mission To Carry Seven Payloads. Know Their Functions

Aditya L1, India's first space-based solar observatory to study the Sun, is equipped with seven payloads, four of which are remote sensing payloads, and three are in-situ payloads. The remote sensing payloads will serve as spectrometers, and the in-situ payloads include particle analysers and a magnetometer. 

Aditya L1 Launch Live: Havan Is Performed In Varanasi For The Successful Launch Of India’s First Solar Mission. WATCH

Some people in Varanasi were seen performing a Havan on Saturday to pray for the successful launch of Aditya-L1, India's first solar mission. 





Aditya L1 Launch Live: ‘I Am Very Excited To Be Here At The Launch Of Aditya-L1’, Says Visitor At Launch Site

A visitor at Satish Dhawan Space Centre in Sriharikota, the site from which Aditya-L1 will be launched today, said that he is "very excited" to be there at the launch site of Aditya-L1.





Aditya L1 Launch Live: The Trajectory To Be Taken By India's First Solar Mission

Aditya-L1 will take a complex path towards the Sun. After launch, the spacecraft will enter a circular low-Earth orbit, and undergo orbit-raising manoeuvres to make its orbit more elliptical than the previous one, following each perigee burn. The next stage is exit from Earth's gravitational sphere of influence (SOI). Then, Aditya-L1 will enter the cruise phase. After this, halo orbit insertion will take place. This entire journey is expected to take about 125 days.

Aditya L1 Launch Live: ISRO To Launch The Solar Observatory Today. WATCH Visuals From Sriharikota

The Indian Space Research Organisation (ISRO) will launch Aditya-L1, India's first space-based solar observatory to study the Sun, today, at 11:50 am IST, from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh. 





Aditya L1 Launch Live: Launch Of India's First Solar Mission To Be Streamed Live At Hyderabad's BM Birla Planetarium

The launch of Aditya-L1, India's first space-based solar observatory to study the Sun, will be streamed live on Saturday at Hyderabad's BM Birla Planetarium, an official told news agency ANI.

Aditya L1 Launch Live: India’s First Solar Mission To Be Launched Today. WATCH Visuals From Sriharikota

Aditya-L1, India's first space-based solar observatory to study the Sun, will be launched from Sriharikota today, at 11:50 am IST. Preparations for launch are underway at Sriharikota.





Aditya L1 Launch Live: The Objectives Of India's First Solar Mission

Aditya-L1 aims to study the different layers of the solar atmosphere, which includes the photosphere, chromosphere, and corona. The photosphere is the innermost layer of the Sun's atmosphere, the chromosphere is a reddish layer located above the photosphere, and the corona is the outermost layer. Aditya-L1 will also study the mechanisms of solar activities and eruptive events such as coronal mass ejections and solar flares. 

Aditya-L1 Launch Live: What Is The Destination Of India's First Solar Mission? Know When It Will Reach

Aditya-L1's final destination is a halo orbit around Lagrange point 1 (L1), which lies along the Sun-Earth line. L1 is located 1.5 million kilometres from Earth. Aditya-L1 is expected to take 125 days to reach the halo orbit around L1.

Aditya-L1 Launch Live: When And How To Watch Launch Of India's First Solar Mission

Aditya-L1 will be launched atop a Polar Satellite Launch Vehicle on September 2, 2023, at 11:50 am IST, from Satish Dhawan Space Centre, Sriharikota. The launch can be watched live on the official YouTube channel of the Indian Space Research Organisation (ISRO), or on DD National. 


Aditya L1 Launch Live: India's First Solar Mission To Launch Today. Know Exact Timing

Aditya-L1, India's first solar-based space observatory, will be launched at 11:50 am IST on September 2, 2023, from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh.

Background

Aditya-L1, India’s first space-based solar observatory to study the Sun, will be launched today (September 2), at 11:50 am IST, atop a PSLV-XL (Polar Satellite Launch Vehicle) rocket, from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh. The Indian Space Research Organisation (ISRO) aims to place Aditya-L1 in a halo orbit around a special point in space, known as Lagrange point 1 (L1). It will take Aditya-L1 about 125 days to reach its destination, ISRO Chief S Somanath has said. 


L1 is located 1.5 million kilometres from Earth, which is about one per cent of the distance between the Sun and the Earth.


Aditya-L1: Where will it be placed? And why?


Aditya-L1 will be placed in a halo orbit around a Lagrange point because it is a special location in space where the gravitational forces exerted by the Sun and the Earth are balanced, as a result of which an equilibrium condition exists, and the spacecraft is able to save fuel. The speciality of L1 is that it will allow Aditya-L1 to have an uninterrupted view of the Sun for five years, which is the spacecraft’s mission duration.


Aditya-L1: What will the spacecraft’s trajectory be?


After being launched, Aditya-L1 will move towards low-Earth orbit, and be placed into a circular orbit. Next, the spacecraft will undergo an orbit-raising manoeuvre to ensure that its orbit becomes elliptical. Aditya-L1 will undergo three such orbit-raising manoeuvres to ensure that after each perigee burn, the orbit becomes more elliptical. 


After this, Aditya-L1 will exit Earth’s sphere of influence and enter the cruise phase. This is a crucial phase because it will place Aditya-L1 on the path leading to halo orbit insertion. Once Aditya-L1 reaches the halo orbit, it will keep hovering around L1 with minimal fuel expenditure.


Aditya-L1: What its payloads are, and what they will do


The spacecraft is equipped with seven payloads, four of which are spectrometers, two are particle analysers, and one is a magnetometer.


The spectrometers are called the remote sensing payloads, and the particle analysers and the magnetometer are called the in-situ payloads.


Aditya-L1 will study solar activities, and also conduct in-situ experiments on the environment around L1.


Aditya-L1: When and how to watch


One can witness the launch of Aditya-L1 live on the official website, YouTube channel, or Facebook account of ISRO, or on DD National. The livestream will start at 11:20 am IST.


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