After the successful Chandrayaan-3 trip to the Moon, ISRO announced on Monday that Aditya-L1, India’s first solar mission, will launch from Sriharikota spaceport at 11.50 am on September 2.
The Aditya-L1 spacecraft will study the solar wind at L1 (Sun-Earth Lagrange point), 1.5 million kilometers from Earth, and the solar corona from afar.
The Sun and Earth’s gravitational pull increase attraction and repulsion at Lagrange Points in space.
NASA says spaceships can use them to reduce orbital fuel. Italian-French mathematician Josephy-Louis Lagrange is renowned for Lagrange points.
The Bengaluru-based space agency announced on social media that a PSLV-C57 rocket will launch India’s first space observatory to study the Sun.
The Aditya-L1 mission would circle the Sun and study its photosphere, chromosphere, and corona in diverse wavebands using seven payloads.
ISRO officials claimed Aditya-L1 was a domestic project involving national organizations.
The Inter-University Centre for Astronomy and Astrophysics in Pune is developing the mission’s Visible Emission Line Coronagraph (VELC) payload, while the Bengaluru-based Indian Institute of Astrophysics is developing the Solar Ultraviolet Imaging Telescope (SUIT).
ISRO said VELC will assist scientists comprehend how the corona can reach a million degrees while the Sun’s surface barely reaches 6000 degrees.
Using its X-ray and UV payloads, Aditya-L1 can observe the solar chromosphere, corona, and flares.
The particle detectors and magnetometer payload can provide data on charged particles and magnetic fields in the L1 halo orbit.
The U.R. Rao Satellite Center in this city launched the satellite, which landed at ISRO’s Andhra Pradesh spaceport last month.
It will orbit the Sun-Earth system’s L1 point in a halo.
ISRO claims that a satellite in halo orbit around L1 can continually watch the Sun without planets blocking the view or causing eclipses.
It said that real-time solar activity and space weather monitoring will improve.
Four payloads would directly monitor the Sun at L1, while the other three would undertake in-situ particle and field research there. This allows for major scientific research into solar dynamics propagating across the interplanetary medium.
ISRO expects the Aditya L1 payloads’ SUITs to provide the most important data on coronal heating, CME, pre-flare and flare activities, space weather dynamics, particle and field propagation, etc.
The Aditya-L1 mission’s main scientific objectives are to observe the in-situ particle and plasma environment to study particle dynamics from the Sun, study solar upper atmospheric (chromosphere and corona) dynamics, study chromospheric and coronal heating, study partially ionized plasma physics, initiate coronal mass ejections, and study solar corona and its heating mechanism.
The mission also investigates CME production, dynamics, and origin, as well as coronal and coronal loop plasma temperature, velocity, and density. Determine the events that occur at various layers (chromosphere, base, and extended corona) and lead to solar eruptive events, as well as the topology and magnetic field measurements in the solar corona and space weather factors.
Aditya-L1’s instrument observes the solar corona and chromosphere. At L1, in-situ equipment will monitor the environment.
Aditya-L1, India’s first solar mission, to launch from Sriharikota spaceport on September 2 after Chandrayaan-3’s Moon launch. The project will study the solar wind at L1 (Sun-Earth Lagrange point), 1.5 million kilometers from Earth, and the solar corona remotely. The PSLV-C57 rocket will carry seven payloads, including the Visible Emission Line Coronagraph (VELC) payload developed by the Inter-University Centre for Astronomy and Astrophysics in Pune and the Solar Ultraviolet Imaging Telescope (SUIT) payload developed by the IIA. From L1, the mission will study the Sun’s photosphere, chromosphere, and corona in multiple wavebands. The U.R. Rao spacecraft Center’s spacecraft will circle the Sun in a halo around the Sun-Earth system’s L1 point, allowing continuous Sun study without planets. The mission’s main scientific objectives include particle dynamics, solar upper atmospheric dynamics, chromospheric and coronal heating, partly ionized plasma physics, coronal mass ejections, and solar corona and heating mechanism. The mission also studies coronal and coronal loop plasma temperature, velocity, and density, CME production, dynamics, and origin, and space weather elements.