Aditya L1 launch date and time: Do you know everything about ISRO solar mission, budget, payload, targets and how it will work?

Aditya L1 is India’s first solar mission aimed at studying the Sun. This mission will determine the influence of the sun on the Earth and its atmosphere in real time. ISRO mentions: “This will allow a greater advantage of observing solar activity and its effect on space weather in real time.”

Some of the highlights of India’s new solar mission are:

  • Aditya L-1 will carry seven payloads, namely: VELC, SUIT, SoLEXS, HEL10S, ASPEX, PAPA and advanced three-axis high-resolution digital magnetometers.
  • The mission is scheduled to launch on September 2, 2023 at 11:50 IST from Sriharikota.
  • The spacecraft will study the outer layer of the sun (Corona).
  • Aditya L-1 is a spacecraft that will be placed in a halo orbit around the Sun-Earth Lagrange point L1, located about 1.5 million kilometers from Earth.

This mission will be a big step forward for India’s space program. It is the first Indian mission to study the Sun in detail, and will provide valuable information about the Sun’s influence on Earth.

What is Aditya L1 solar mission launch date and time?

Name of the mission Aditya L-1
Aditya L-1 mission launch date September 2, 2023
Launch time of Aditya L-1 mission 11:50 IST
Aditya L-1 mission landing site Lagrange point 1
Type of mission Solar mission

Aditya L-1 mission launch date is 2nd September 2023 at 11:50 IST. The mission is scheduled to be launched by the Indian Space Research Organization (ISRO) from the Satish Dhawan Space Center in Sriharikota.

🚀PSLV-C57/🛰️Aditya-L1 Mission:

The launch of Aditya-L1, India’s first space observatory to study the Sun ☀️, is scheduled for 🗓️2. September 2023 at 🕛11:50 am. IST from Sriharikota.

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Citizens are invited to witness the launch from the Launch View Gallery at…

— ISRO (@isro)
August 28, 2023

The launch of the Aditya L-1 mission has been delayed several times due to technical issues. The original launch date was 2020, but it was later pushed back to 2021 and then to 2022. The launch was further delayed to 2023 due to the COVID-19 pandemic.

ISRO is confident that the Aditya L-1 mission will be launched on September 2, 2023. The spacecraft is ready for launch and the ground systems are being tested. The launch team is confident that they will be able to successfully launch the Aditya L-1 mission.

What is L-1 in Aditya Mission?

Source: Twitter (ISRO)

L1 is a gravitationally stable point located between the Sun and the Earth. It is about 1.5 million kilometers from the Earth and it is the point where the gravitational forces of the Sun and the Earth are equal. This means that the spacecraft located in L1 will remain in a fixed position in relation to the Sun and the Earth.

The L1 point is a good location for studying the Sun because it is relatively close to Earth, so the spacecraft can quickly send data back to Earth. It is also a good place to study the Sun because it is unaffected by Earth’s atmosphere, which can block some of the Sun’s radiation.

What is the budget of the Aditya L-1 mission?

The Aditya L1 mission is a major project of the Indian Space Research Organization (ISRO). They will study the Sun’s corona, the outermost layer of the Sun’s atmosphere. The budget for the mission is around 400 Crore (around 50 million US dollars) according to India Times and Hindustan Times. This money will be used to design, develop, launch and operate the spacecraft. It will also be used to purchase instruments and equipment needed to study the solar corona.

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The budget for the Aditya L1 mission is a lot of money, but it is necessary for such a complex project. The mission will help India better understand the Sun and its influence on Earth. It will also help India contribute to global scientific progress.

What are the payloads of Aditya L-1?


Source: ISRO

According to ISRO, there are seven payloads of the Aditya L-1 mission which are divided into two categories: remote sensing payloads and on-site payloads. Payloads are:


Sl. Not.



Remote read payload


Visible emission coronagraph (VELC)

Corona/imaging & spectroscopy


Solar Ultraviolet Imaging Telescope (SUIT)

Images of the photosphere and chromosphere – narrowband and broadband


Low Energy Solar X-ray Spectrometer (SoLEXS)

The soft X-ray spectrometer: Observing the Sun as a star


High Energy Orbital X-ray Spectrometer L1 (HEL1OS)

The hard X-ray spectrometer: Observing the Sun as a star

Payloads on site


Aditya Solar Wind Particle Experiment (ASPEX)

Solar wind/proton and heavier ion particle analyzer with instructions


Aditya Plasma Analyzer Package (PAPA)

Solar wind/electron and heavier ion particle analyzer with instructions


Advanced high-resolution three-axis digital magnetometers

In-situ magnetic field (Bx, By and Bz).

Source: ISRO

What are the objectives of the Aditya L-1 mission?

The Aditya L1 mission has 9 main science objectives:

  • Study the dynamics of the Sun’s upper atmosphere, including the chromosphere and corona.
  • Study how the Sun’s atmosphere heats up, the physics of partially ionized plasma, and how coronal mass ejections (CMEs) and flares are triggered.
  • Observe the environment of particles and plasma around the Sun to learn more about how particles from the Sun travel through space.
  • Understand the physics of the solar corona and how it heats up.
  • Diagnose the temperature, velocity and density of plasma in the solar corona and coronal loops.
  • To study the development, dynamics and origins of CME.
  • Identify the sequence of processes occurring in the chromosphere, core, and extended corona that lead to solar eruptive events.
  • Measure the magnetic field topology and the magnetic field in the solar corona.
  • Understand the drivers of space weather, such as the origin, composition and dynamics of the solar wind.
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These goals are important because they will help us better understand the Sun and its influence on Earth. The Sun is the source of all life on Earth, and it also plays a role in space weather, which can disrupt our technology and infrastructure. By better understanding the Sun, we can better protect ourselves from its harmful effects.

How will Aditya L-1 work?

The Aditya L1 mission will be launched by the Indian Space Research Organization (ISRO) using the PSLV-C57 rocket. The PSLV-C57 is a four-stage rocket capable of placing a payload of 1,750 kilograms into low Earth orbit.

After the Aditya L1 spacecraft is launched, it will first be placed in low Earth orbit. The orbit will be more elliptical using the spacecraft’s propulsion system. The spacecraft will then use its propulsion system to launch itself towards point L1.

As the Aditya L1 spacecraft moves towards the L1 point, it will exit the Earth’s gravitational sphere of influence (SOI). The SOI is the region of space around a planet where the planet’s gravity is stronger than that of any other body. When the Aditya L1 spacecraft exits the Earth’s SOI, it will be in orbit around the Sun, but will also be balanced by Earth’s gravitational pull.

The Aditya L1 spacecraft will arrive at the L1 point about 20 days after launch. When it reaches point L1, it will stay there for five years.

ISRO is excited about the Aditya L-1 mission. They believe that the mission will make a significant contribution to our understanding of the Sun and its influence on Earth. They are also confident that the mission will be successful after the victory landing on the moon by the Chandrayaan-3 mission.

READ – What is Aditya L-1? Know more about India’s first solar mission, date and time

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