India's first space-based mission to the Sun, Aditya-L1, lifts off from Sriharikota

News Network
September 2, 2023

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India’s first space-based mission to the Sun, Aditya-L1, took off successfully from the second launch pad of Satish Dhawan Space Centre here on Saturday, September 2, 2023, nine days after the country’s ambitious Chandrayaan-3 made a safe and soft landing on the unexplored south polar region of the Moon.

Indian Space Research Organisation (ISRO)’s most reliable workhorse PSLVC-57 launched the Aditya L1 spacecraft weighing 1,475 kg at 11.50 am, amid loud cheers from scientists gathered at the Mission Control Room here. The cost of the mission is said to be Rs 420 crore.

Initially, the spacecraft will be placed in a low earth orbit, which will be made elliptical to launch Aditya L1 towards the Lagrange point L1 using on-board propulsion. As the spacecraft travels towards L1, it will exit the earths’ gravitational Sphere of Influence (SOI) and if all goes well, the spacecraft will be placed in a halo orbit around the Lagrange point 1 (L1) of the Sun-Earth system in 125 days.

The L1 point is about 1.5 million km from the Earth, just 1 per cent of the 150 million km distance between the two. The distance to be travelled by Aditya L1 is four times more than Chandrayaan-3, which landed on the Moon on August 23 and is coming out significant findings.
Reaching the L1 point will give India a greater advantage of observing the solar activities continuously. All the measurements will be made from the Lagrange point L1, while L5 is a good vantage point for studying the Earth directed CME events and assessing the space weather, scientists said.

Of the seven payloads – all indigenously developed and made by ISRO and other organisations -- four will directly view and study the Sun, while the remaining three will conduct in-situ studies of particles and fields around the L1 point.

Placing a satellite in the halo orbit around the L1 point has the major advantage of continuously viewing the Sun without any occultation/ eclipses and provide a greater advantage of observing the solar activities and its effect on space weather in real time, scientists said.

Through this mission, ISRO hopes to get important scientific studies of the propagatory effect of solar dynamics in the interplanetary medium, while the payloads are expected to provide crucial information to understand the problem of coronal heating, coronal mass ejection, pre-flare and flare activities and their characteristics, dynamics of space weather, propagation of particle and fields.

By studying the Sun, ISRO said, scientists can learn much more about stars in the Milky Way as well as about stars in various other galaxies. Since various thermal and magnetic phenomena on the Sun are of extreme nature, Sun will serve as a good natural laboratory to understand those phenomena which cannot be directly studied in the lab.

The suit of Aditya L1 payloads are expected to provide most crucial information to understand the problems of coronal heating, Coronal Mass Ejection, pre-flare and flare activities, and their characteristics, dynamics of space weather, study of the propagation of particles, and fields in the interplanetary medium.

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News Network
October 27,2024

Samajwadi Party (SP) chief Akhilesh Yadav stated on Sunday, October 27, that his party is prepared to contest the Maharashtra Assembly elections independently if the Maha Vikas Aghadi (MVA) does not include them in the alliance. 

Yadav assured that the SP would only contest in constituencies where it has a strong organizational presence and would ensure its participation does not affect the MVA’s overall prospects.

Several I.N.D.I.A. alliance members have expressed dissatisfaction with the Congress over seat-sharing arrangements in upcoming state polls. 

Both the CPI(ML)L and the RJD voiced frustration after being offered only 3-4 seats each for the Jharkhand elections by the Congress.

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News Network
October 27,2024

Samajwadi Party (SP) chief Akhilesh Yadav stated on Sunday, October 27, that his party is prepared to contest the Maharashtra Assembly elections independently if the Maha Vikas Aghadi (MVA) does not include them in the alliance. 

Yadav assured that the SP would only contest in constituencies where it has a strong organizational presence and would ensure its participation does not affect the MVA’s overall prospects.

Several I.N.D.I.A. alliance members have expressed dissatisfaction with the Congress over seat-sharing arrangements in upcoming state polls. 

Both the CPI(ML)L and the RJD voiced frustration after being offered only 3-4 seats each for the Jharkhand elections by the Congress.

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News Network
October 28,2024

Bengaluru: The Enforcement Directorate on Monday undertook fresh searches in connection with the Mysuru Urban Development Authority (MUDA) linked money laundering case in which it has booked Karnataka Chief Minister Siddaramaiah, official sources said.

About seven-eight premises in Bengaluru and Mysuru are being covered, the sources said.

The federal agency had conducted the first round of raids in this case on October 18 when it searched the MUDA office in Mysuru and some other locations.

It also questioned some lower-rank officials of the MUDA at its Bengaluru zonal office last week.

The ED has filed a enforcement case information report (ECIR) under the Prevention of Money Laundering Act (PMLA) to book the CM and others taking cognisance of a Lokayukta FIR.

Siddaramaiah is facing Lokayukta and ED probes into alleged irregularities in the allotment of 14 sites to his wife by the MUDA.

Siddaramaiah's wife Parvathi B M, brother-in-law Mallikarjuna Swamy, Devaraju -- from whom Mallikarjuna Swamy purchased land and gifted it to Parvathi -- and others are named as other accused in the case by the two probe agencies.

Parvathi was recently questioned by the Lokayukta.

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