Aditya L-1 is India’s first solar mission. It will study the Sun’s halo, chromosphere and photosphere. Here are all the details.
ISRO’s New Solar Mission
After the successful launch of Chandrayaan-3, India is planning to launch its first solar mission called Aditya L-1.
Aditya L-1 is a spacecraft that will be placed in halo orbit around the Sun-Earth Lagrange Point L1, located about 1.5 million km from Earth. The mission is scheduled to launch in August 2023.
ISRO mentions: “Aditya L1 will be India’s first mission to study the Sun in space. The spacecraft will be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system, about 1.5 million km from Earth.”
“A satellite placed in a halo orbit around the point L1 has the great advantage of continuously observing the Sun without occlusion/eclipse,” it added.
The Aditya L-1 mission will study the Sun’s halo, chromosphere and photosphere. It will also study the solar wind, solar rays and coronal mass ejections (CME). The objectives of this mission according to ISRO are:
- “Study of the upper atmosphere dynamics (chromosphere and corona) of the Sun.
- Study of the heating of the chromosphere and corona, the physics of partially ionized plasma, the initiation of coronal mass ejections, and light rays
- Observations of the in situ plasma and particle environments provide data for the study of particle dynamics from the Sun.
- The physics of the solar corona and its heating mechanism.
- Coronary and coronal plasma diagnostics: Temperature, velocity, and density.
- The development, dynamics and origins of CME.
- Determine the sequence of processes occurring in multiple layers (chromosphere, basal and extended halo) that ultimately lead to solar eruption events.
- Magnetic field topology and magnetic field measurements in the solar halo.
- Space weather drivers (origin, composition, and dynamics of the solar wind.”
The Aditya L-1 mission is an important mission of the Indian Space Research Organization (ISRO).
This is a complex task that requires high precision and accuracy. The success of the Aditya L-1 mission will be a great achievement for India and will help us better understand the Sun and its impact on the Earth.
The mission will carry seven payloads as follows:
Source: ISRO
- Solar Ultraviolet Imaging Telescope (SUIT): This payload will image the Sun’s halo in the ultraviolet (UV) range.
- Aditya Solar Wind Particle Experiment (ASPEX): This payload will measure solar wind particles and their properties.
- Plasma Analysis Package for Aditya (PAPA): This payload will measure the plasma environment around the spacecraft.
- Low Energy X-ray Spectrometer (SoLEXS): This payload will measure the amount of X-ray emission from the Sun’s corona.
- High Energy L1 Orbital X-ray Spectrometer (HEL1OS): This payload will measure high-energy X-ray emissions from the Sun.
- Visible Emissions Trail (VELC): VELC is the largest payload on the Aditya L1 mission. It’s a corona that uses a combination of filters and an occlusion disk to block light from the Sun’s disk, allowing it to image the Sun’s corona.
- Advanced three-axis high-resolution digital magnetometer: These magnetometers are used to measure the magnetic field around the Aditya L1 spacecraft. Magnetometers have three axes, which means they can measure magnetic fields in three dimensions.
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Source: pagasa.edu.vn