Aditya L1: India’s First Solar Mission

Aditya L1
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The Indian Space Research Organisation (ISRO) is planning the Aditya-L1 Mission, which will be India’s first solar mission. The Satish Dhawan Space Center in Sriharikota will serve as the launch site for the historic first space-based Indian Solar mission Aditya L1 on September 2, 2023.

It is ISRO’s second astronomy mission for a research mission to study the Sun in orbit after AstroSat. Aditya 1 was the original name of the mission, which was solely capable of viewing the solar corona.

Aditya L1 Mission: Launch Date & Time

Aditya-L1, India’s first-ever solar mission, is about to launch thanks to the Indian Space Research Organization (ISRO). Launch day for the Aditya-L1 is set for September 2, 2023, at 11:50 a.m.

What is the Objective of Aditya L1 Mission?

The following are some of the goals of the Aditya L1 mission, according to an ISRO report:

  • Study of the dynamics of the solar upper atmosphere (chromosphere and corona).
  • CME evolution, dynamics, and genesis.
  • Determine the series of events that take place at various layers (chromosphere, base, and extended corona) and ultimately result in solar eruptive events.
  • Magnetic field measurements and field topologies in the solar corona.
  • Drivers of space weather (solar wind dynamics, composition, and origin.
  • study of flares, coronal mass ejections, partial ionization of the plasma, and chromospheric and solar heating
  • Watch the in-situ particle and plasma environment that the Sun provides, since this information will be used to investigate particle dynamics.
  • The heating mechanism of the solar corona and its physics.
  • Temperature, velocity, and density measurements of the coronal and coronal loop plasma.

About Aditya L1 Mission

Important details concerning the Aditya L1 Mission are covered below:

  • Polar Satellite Launch Vehicle (PSLV) XL was used to launch it.
  • Mission Aditya L1 has fewer moving parts than past ISRO-led missions, which reduces the risk of collisions in space.
  • A list of the payloads that were used for the mission is shown below:
    • VELC, or visible emission line coronagraph
    • SUIT, short for Solar Ultraviolet Imaging Telescope
    • ASTEX, the Aditya Solar Wind Particle Experiment
    • Packaged Plasma Analyzer for Aditya Solar SoLEXS, a Low Energy X-ray Spectrometer
    • High Energy L1 Orbiting X-ray Spectrometer (HEL1OS)
    • Magnetometer
  • The Aditya L1 Mission’s primary goal is to aid in the tracking of storms that are aimed at Earth and the prediction of their impact through solar measurements.

Watch the Launch of PSLV-C57/Aditya L1 Mission

Why was Aditya 1 Mission renamed to Aditya L1 Mission by ISRO?

The Aditya-1 mission was intended to simply observe the sun’s corona. In solar physics, the cause of Corona heating up to such high temperatures is still a mystery. The satellite was launched on the Aditya-1 mission into an 800 km low earth orbit. Later, ISRO intended to orbit the satellite around the Lagrangian Point (L1) in a halo configuration. 1.5 million km separate Earth from L1. The benefit of uninterrupted, continuous observation of the Sun is offered at this site. As a result, the mission was changed to the Aditya L1 mission.

Other Sun & Solar Missions

In addition to the Aditya L1 Mission by ISRO, which is a mission focused on the sun, several other nations have started similar initiatives. The names of a few such missions are listed below:

  1. NASA’s Parker Solar Probe
  2. NASA’s Living With a Star
  3. NASA’s Helios 2

Frequently Asked Questions (FAQs) about Aditya L1 :

  1. Launch time and date for Aditya L1? At 11:50 IST on Saturday, September 2, 2023, the Aditya L1 will be introduced.
  2. What is the budget for Aditya L1’s Mission?  Aditya L1’s overall budget is anticipated to be Rs 400 Crore.
  3. What is the Launch vehicle for Aditya L1? PSLV-XL is the launch vehicle for Aditya L1.
  4. How long will it take the Aditya L1 to get where it’s going?  Aditya L1 will take around 125 days to arrive at the L1 point, according to ISRO Chief S Somanath.
  5. When and where can I watch the live stream of the Aditya L1 mission? Aditya-L1’s live feed will be accessible on the ISRO’s official YouTube page. Additionally, viewers can watch this event live-streamed from the BM Birla Planetarium.


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