Aditya-L1 Mission An another great step by ISRO – 23
Aditya-L1 Mission
After the successful launching of Chandrayaan towards Moon , by ISRO , now the next step of ISRO will be launching a spacecraft towards the Sun to study he atmosphere surrounding Sun, namely Aditya-L1 Mission .
It will be India’s first space based Solar observatory
Aditya-L1 Mission – Aditya L1 shall be the first space based Indian mission to study the Sun. The spacecraft shall be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system, which is about 1.5 million km from the Earth. A satellite placed in the halo orbit around the L1 point has the major advantage of continuously viewing the Sun without any occultation/eclipses.
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The Aditya-L1 mission, which was the Indian Space Research Organization’s- ISRO first attempt to study the Sun, published photographs on Monday, August 14.
The satellite has arrived at the Satish Dhawan Space Centre (SDSC) in Sriharikota, Andhra Pradesh, where it will be integrated with the PSLV launch vehicle, even though the mission’s launch date has not yet been confirmed.
Aim of Aditya-L1 Mission
The ability to watch the solar activity and how it affects the space weather in real time will be improved. Seven payloads are carried by the spacecraft to observe the photosphere, chromosphere, and the solar corona utilizing electromagnetic, particle, and magnetic field detectors.
Four payloads see the Sun directly from the unique vantage point L1, while the remaining three payloads conduct in-situ particle and field research at the Lagrange point L1.
The Aditya L1 payloads’ suites are anticipated to deliver the information that is most important for comprehending the issues of coronal heating, coronal mass ejection, pre-flare and flare activities, features of flares, dynamics of space weather, propagation of particle and fields, etc.
Scientific goals of Aditya-L1 Mission–
The following are the main science goals of the Aditya-L1 mission:
- Study of the dynamics of the solar upper atmosphere (chromosphere and corona).
- Study of flares, coronal mass ejections, partial ionization of the plasma, and chromosphere 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.
coronal and coronal loops plasma diagnostics: velocity, density, and temperature. - 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).
Why the study of Sun is important ?
Every planet, including Earth and the exoplanets outside of the Solar System, goes through an evolutionary process that is controlled by its parent star. The entire system’s weather is impacted by the solar environment and weather. Variations in this weather can alter satellite orbits or shorten their lifespan, interfere with or harm onboard electronics, and cause power outages and other disturbances on Earth. Understanding space weather requires knowledge of solar occurrences.
How does the Aditya-L1 mission work?
By keeping a careful eye on the Sun, the Aditya-L1 will attempt to learn more about its magnetic field and atmosphere. It will conduct continuous photography of the Sun and has seven payloads (instruments) on board to research the corona of the Sun, solar emissions, solar winds and flares, and Coronal Mass Ejections (CMEs).
How much heat will the Aditya-L1 experience?
Despite being exposed to temperatures of more than a thousand degrees Celsius during its flyby of the Sun, the Parker Solar Probe maintained full functionality.
In contrast to NASA’s mission, the Aditya-L1 is planned to travel far farther from the Sun, so it won’t experience this heat.
When will Aditya-L1 launch?
The Polar Satellite Launch Vehicle (PSLV), which also launched Chandrayaan-1 in 2008 and the Mars Orbiter spacecraft in 2013, will launch the Aditya L1 mission. The launch is most likely to occur in late August or early September.
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