ISRO's Aditya L1 captures first high energy X-ray glimpse of solar flares
Bengaluru, Nov 7: ISRO's maiden solar mission, Aditya L1, has captured its first high energy X-ray glimpse of solar flares.
During its first observation period from approximately October 29, the High Energy L1 Orbiting X-ray Spectrometer (HEL1OS) on board Aditya-L1 spacecraft has recorded the impulsive phase of solar flares, the space agency said in a statement on Tuesday.
A solar flare is a sudden brightening of solar atmosphere.
The recorded data is consistent with the X-ray light curves provided by National Oceanic and Atmospheric Administration's (NOAA) Geostationary Operational Environmental Satellites (GOES).
"Commissioned on October 27, 2023, HEL1OS is currently undergoing fine-tuning of thresholds and calibration operations. The instrument is set to monitor the Sun's high-energy X-ray activity with fast timing and high-resolution spectra," it said.
HEL1OS data enables researchers to study explosive energy release and electron acceleration during impulsive phases of solar flares.
HEL1OS was developed by the Space Astronomy Group of the U R Rao Satellite Centre, ISRO, Bengaluru, the agency added.
HEL1OS, the hard X-ray spectrometer on Aditya-L1 Solar Mission by ISRO, is the harbinger of flaring activities on the Sun, with the ability to capture the early impulsive phase of the solar activity.
According to ISRO, flares produce enhanced emission in all wavelengths across the electromagnetic spectrum radio, optical, UV, soft X-rays, hard X-rays and gamma-rays. Flare emission consists of emissions from accelerated particles and hot plasma.
Aditya-L1 spacecraft is designed for providing remote observations of the solar corona and in-situ observations of the solar wind at L1 (Sun-Earth Lagrangian point), which is about 1.5 million kilometres from the Earth.
It is the first dedicated Indian space mission for observations of the Sun. Aimed at studying the Sun from an orbit around the L1, the mission carries seven payloads to observe the photosphere, chromosphere and the outermost layers of the Sun, the corona, in different wavebands.
Aditya-L1 is a fully indigenous effort with the participation of national institutions.
An ISRO scientist told PTI that capturing the first High-Energy X-ray glimpse of Solar Flares is an indication that the mission is so far doing well on the expected lines.
Aditya-L1 Mission:
— ISRO (@isro) November 7, 2023
HEL1OS captures first High-Energy X-ray glimpse of Solar Flares
🔸During its first observation period from approximately 12:00 to 22:00 UT on October 29, 2023, the High Energy L1 Orbiting X-ray Spectrometer (HEL1OS) on board Aditya-L1 has recorded the… pic.twitter.com/X6R9zhdwM5
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Ex-PM Devegowda warns opposition of electoral losses if they continue to allege 'vote chori'
New Delhi (PTI): Former Prime Minister H D Devegowda on Monday said the Opposition parties would "suffer" if they continue to raise allegations of "vote chori" and create suspicion in the minds of voters by blaming Prime Minister Narendra Modi-led government.
Participating in a discussion on election reforms in the Rajya Sabha, he criticised the Opposition for making a mockery about the Prime Minister "in the streets and on the public platform".
"This (India) is a very big country. A large country. Congress may be in three states. Remember my friends please, by using the words 'vote chori' you are going to suffer in the coming days. You are not going to win the battle," Devegowda said, referring to the Opposition members.
He asked what the Opposition is going to earn by "blaming Narendra Modi's leadership and creating a suspicion in the mind of the voters" through the claims of "vote chori".
"What has happened to their minds? Let them rectify," Devegowda said.
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The former prime minister said that during his over seven decades of public life, he has never raised such issues of vote theft despite facing defeat in elections.
He also cited a letter written by the then Prime Minister Jawaharlal Nehru regarding inclusion of "18,000 votes" (voters) in Kerala.
"Why I am telling this (because) during the Nehru period also, there were certain lapses in the electoral system," said Devegowda, who was the prime minister between June 1, 1996 and April 21, 1997.
He said that the Congress party faced defeat in the recent Bihar elections despite raising the issues of mistakes in the electoral rolls.
"What happened after that even after so much review (of voters list). Think (for) yourself! You got six MLAs," the senior Janata Dal (Secular) leader said.
Devegowda questioned the Opposition as to why they want to make allegations against the prime minister on the issue of the voters list?
"Election Commission is there. Supreme Court is there. The Election Commission has given direction to all the state units to rectify all these things," he said.
Devegowda said people of the country have full confidence in Narendra Modi's government and it will come back to power after the next Lok Sabha elections as well.
K R Suresh Reddy, Bharat Rashtra Samithi (BRS) party's Rajya Sabha member from Telangana, said that electoral reforms are the backbone for a healthy democracy.
He said a large and diverse nation like Indi needs clean electoral rolls.
Asserting that strict re-verification should not become a mechanism for exclusion, Reddy said no eligible voter should lose their right to vote simply because accessing paperwork is difficult.
He said while the concern definitely is on the voters' exclusion, "we should also be equally concerned about the percentage of voting."
"What is happening in voting today? Once the election ends, the drama begins. The biggest challenge that the Indian democracy has been facing in spite of two major Constitutional amendments has been the anti-defection. Anti-defection is the name of the game today, especially in smaller states, especially where the legislatures are small in number," Reddy said.
The senior BRS leader suggested creation of a parliamentary committee "which would constantly look into the defection" and "ways and means to cutting that".
AIADMK's M Thambidurai raised the issues related to election campaigning.
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"Election campaigns are one of the important election processes. In that, political parties must be given the proper chance to campaign," he said and cited problems faced by his party in Tamil Nadu in this regard.
Thambidurai said political parties were facing hardships in Tamil Nadu to conduct public meetings and to express their views to the public.
YSRCP's Yerram Venkata Subba Reddy stressed on bringing electoral reforms at both the state and national levels.
He also suggested replacing Electronic Voting Machines with paper ballots in all future elections.
"EVM may be efficient but can't be trusted. Paper ballot may not be efficient but can be trusted. You need trust in democracy," Reddy added.
