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Magadh Today - Beyond Headlines > Latest News > India > Sun Study: India To Launch Europe’s Proba-3 Set To Create Artificial Eclipse
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Sun Study: India To Launch Europe’s Proba-3 Set To Create Artificial Eclipse

Gulshan Kumar
Last updated: 2024/01/05 at 1:05 PM
By Gulshan Kumar 2 years ago
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BENGALURU: The European Space Agency’s (ESA) groundbreaking Proba-3 mission is scheduled to embark on India’s Polar Satellite Launch Vehicle (PSLV) this September. This innovative mission aims to showcase precision formation flying between two satellites, orchestrating an artificial eclipse to unveil fresh perspectives of the Sun’s faint corona.

The Proba-3 mission involves two compact satellites: a Coronagraph spacecraft and an Occulter spacecraft shaped like a solar disc. By maintaining a tight formation approximately 150 meters apart, the Occulter will strategically cast its shadow onto the Coronagraph’s telescope, effectively blocking the direct sunlight. This intricate dance allows the Coronagraph to capture images of the elusive solar corona in visible, ultraviolet, and polarized light for extended durations.

The European Space Agency expressed, “Through exquisite, millimeter-scale formation flying, the dual satellites making up Proba-3 will accomplish what was previously a space mission impossible: Cast a precisely held shadow from one platform to the other, in the process blocking out the fiery Sun to observe its ghostly surrounding atmosphere on a prolonged basis.”

Scientists anticipate that Proba-3’s unique vantage point will offer new insights into the origins of coronal mass ejections (CMEs), solar eruptions that can disrupt satellites and power grids on Earth. The mission is also designed to measure total solar irradiance, monitoring changes in the Sun’s energy output that might impact Earth’s climate.

Damien Galano, ESA’s Proba-3 project manager, highlighted, “The best way to reduce diffraction is to increase the distance between the occulter and the coronagraph, which is precisely what Proba-3 is going to do. We are flying our Coronagraph and Occulter on separate platforms for the first time, flying 150m apart for up to six hours per orbit, applying an array of positioning technologies to keep them rigidly in place.”

After the PSLV launch in India and a series of orbital maneuvers, Proba-3’s solar observations are expected to revolutionize the field, potentially paving the way for future generations of formation-flying space telescopes unraveling deeper astronomical mysteries.

 

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