The world awaits data from Aditya-L1
The Indian Space Research Organisation’s first Sun-observing mission, Aditya-L1, completed its first halo orbit around Lagrange Point-1 on Tuesday, 178 days after being inserted into orbit. The mission’s key objectives are to better understand coronal heating, coronal mass ejections, solar wind acceleration and distribution, solar flares and near-Earth space weather, dynamics of solar atmosphere, and temperature magnitude variations. All these are crucial as studies for the protection of near-Earth systems—like satellites and space stations—as well as terrestrial-based ones—like power grids—that can get adversely affected when massive solar flares hit Earth. The Aditya-L1 satellite’s orbital trajectory around L1 had to be controlled to enable it to maintain its halo orbit, needing three thruster firings—on February 22, June 7 and July 2—failing which it could have gone astray, prematurely compromising the mission.
Aditya L1 mission: How the 926 days long journey of ISRO’s Sun mission unfolded
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