ISRO’s Aditya-L1 completes first halo orbit around Sun-Earth L1 point in 178 days
First Published: 3rd July, 2024 8:11 IST
The Aditya-L1 mission is an Indian solar observatory at Lagrangian point L1, launched on September 2 last year and was inserted in its targeted halo orbit on January 6
India’s first solar mission Aditya-L1 spacecraft completed its first halo orbit around the Sun-Earth L1 point on Tuesday, the Indian Space Research Organisation (ISRO) said in a statement.
The Aditya-L1 mission is an Indian solar observatory at Lagrangian point L1, launched on September 2 last year and was inserted in its targeted halo orbit on January 6.
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, the spacecraft will be subjected to various perturbing forces that will cause it to depart from the targeted orbit, the ISRO stated.
Further, it 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 into the second halo orbit path around L1.
“This journey of Aditya L1 around Sun-Earth L1 Lagrangian point involves modelling of complex dynamics,” it said.
The understanding of various perturbing forces acting on the spacecraft helped in determining the trajectory accurately and planning precise orbit manoeuvres.
However, 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, according to the ISRO.
Further, the ISRO detailed the trajectories marked in the figure.
The blue trajectory, in the figure, is the orbit around the Lagrangian point L1. This trajectory is a 3-dimensional trajectory, and what is shown is the projection of it in the X-Y plane.
“SK#1, 2 & 3 are the Station Keeping maneuvers by the Aditya-L1 spacecraft. The final firing of the thrusters, ie. SK#3 on July 2, placed the spacecraft back in the required orbit,” it stated.
Moreover, if an accurate firing was not done, the spacecraft would have moved away in a trajectory shown in green colour.
The X-Y axes are marked in the distance of km, with Lagrangian point L1 at the origin, it added. (ANI)
COMMENTS
TOPMOST STORY NOW
Live Northeast Diva, the region’s biggest and grandest beauty pageant, is back
07th June 2024Live Assam floods: 6 persons die in last 24 hours, 21 lakh affected in 29 of 35 districts
05th July 2024Live Manipur flood situation continues to be grim: Schools to remain closed till tomorrow, offices, businesses shut today
05th July 2024Live “You have voted, now it’s time for us to deliver”: Keir Starmer after exit polls show landslide win for UK’s Labour Party
05th July 2024Live Tripura govt sanctions Rs 22 cr for cyclone Midhili-affected farmers
05th July 2024WE RECOMMEND
What is ‘mameru’ ceremony Anant Ambani and Radhika Merchant are hosting?
During the ‘mameru’ ceremony, the bride's maternal uncle and her family visit the bride's home, with blessings and gifts.
04th July 2024Champai Soren resigns as Jharkhand CM, Hemant Soren stakes claim to form govt
After tendering his resignation to the Governor, Champai Soren said the ruling alliance had chosen Hemant Soren as the leader.
03rd July 2024Check out stunning pictures of Anant Ambani, Radhika Merchant’s spectacular mameru ceremony
The wedding invitation went viral offering a glimpse into the preparations for the high-profile event.
03rd July 2024Rajya Sabha condoles loss of lives in Hathras stampede
Leader of the Opposition in Rajya Sabha called on government to enact legislation aimed at preventing similar incidents in the future.
03rd July 2024Hathras stampede: Plea in SC to probe incident by expert committee
A petition was filed in the Supreme Court on Wednesday to enquire into the Hathras stampede where more than 100 people were killed on July 2
03rd July 2024