ISRO's Aditya-L1 completes first halo orbit around Sun-Earth L1 point
Bengaluru (PTI): India’s first solar mission Aditya-L1 spacecraft completed its first halo orbit around the Sun-Earth L1 point on Tuesday, ISRO said.
The space agency said its station-keeping manoeuvre on Tuesday ensured its seamless transition into the second halo orbit.
The Aditya-L1 mission, which is an Indian solar observatory at Lagrangian point L1, was launched on September 2, 2023 and was inserted in its targeted halo orbit on January 6, 2024.
According to ISRO, Aditya-L1 spacecraft in the halo orbit takes 178 days to complete a revolution around the L1 point.
During its travel in the halo orbit, Aditya-L1 spacecraft will be subjected to various perturbing forces that will cause it to depart from the targeted orbit, the space agency said.
"Aditya-L1 underwent two station-keeping manoeuvres on February 22 and June 7, respectively, to maintain this orbit. Today's third station-keeping manoeuvre has ensured that its travel continued in the second halo orbit path around L1,” ISRO said.
The agency explained that Aditya L1's journey around Sun-Earth L1 Lagrangian point involves modeling of complex dynamics.
The understanding of various perturbing forces acting on the spacecraft helped in determining the trajectory accurately and planning precise orbit manoeuvres, it added.
"With today's manoeuvre, the state-of-the-art flight dynamics software developed in-house at URSC-ISRO for the Aditya-L1 missions stands fully validated," ISRO said.
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I've 10 months to decide whether I want to play one more year: Dhoni on IPL future
New Delhi(PTI): The legendary MS Dhoni stayed immune to the growing clamour around his future in the IPL, saying the decision to bring curtains on his career depends on how his body reacts to the demands of top-flight cricket and he has "10 months" to take a call.
In this IPL, Dhoni has not been able to make the kind of impact that he usually does while batting in the lower middle-order.
His lack of timing and ineffectiveness, evidenced in the 76 runs that he made from four matches, have prompted several experts to urge the multiple World Cup-winning skipper to move on.
"I am still playing the IPL and it is one year at a time for me. I am 43 now and by the end of this IPL season, I will be 44," Dhoni said on entrepreneur Raj Shamani's podcast recently.
"So, I have 10 months to decide whether I want to play one more year and it's not me to decide as it is my body that decides whether I can play or not," he added.
However, the former Chennai Super Kings skipper, who led CSK to five IPL titles, said he is quite content with his achievements on the field.
"It is not about whether I am happy or unhappy. Whatever has happened has happened. It cannot be changed. It's about accepting all of it. You know, whatever happens I will not be able to add one more run to my international runs, and no one will be able to reduce them," he said.
Dhoni has always been a man of the present. But, for once, he set aside that pragmatic side to reveal his wish of seeing legends like Sachin Tendulkar, Sourav Ganguly, Virender Sehwag and Yuvraj Singh assemble in the same team once again.
"I will stick to Indian players. Viru pa opening the innings, Sachin, Dada… and now you imagine everyone at their prime. Then you will get this feeling that there can't be anyone better than them.
"It's tough to pick an all-time eleven. Now, when you see Yuvi hitting six sixes, you will feel that I don't want to watch any other batsman. It's all about enjoying what they have done for India. Some of those talents we have seen are mind blowing," he added.
