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 Manipur: Fresh Drone Bomb Attacks Reported from Kangchup Hills in Imphal West
15th January 2025
Live CM N. Biren Chairs High-Level Meeting to Address Loktak Lake’s Preservation Challenges
15th January 2025
Live Alliance Air Caps Fares to Manipur at Rs 5000 a Ticket, CM Biren Singh Hails Decision
15th January 2025
Live Guwahati Shocker: Man Killed by Friends After Party, 4 Arrested
15th January 2025
WE RECOMMEND
PM Modi to Attend AI Action Summit in France on February 10-11: French President Macron
Macron also highlighted that the summit will focus on innovation, talent, and positioning France and Europe
11th January 2025
AAP MLA Gurpreet Gogi shot dead in Ludhiana
Aam Aadmi Party (AAP) MLA Gurpreet Gogi, representing the Ludhiana West constituency, was declared dead after being shot with bullet injuries. The incident occurred around midnight, and the MLA was declared dead upon arrival at the DMC hospital, as per officials. “The incident happened around midnight, and he was declared dead when he was brought to the DMC […]
11th January 2025
Around 10,000 Special Guests, architects of ‘Swarnim Bharat’, invited to witness Republic Day Parade 2025
A national-level competition was announced by the Department of Administrative Reforms and Public Grievances among panchayats.
10th January 2025
‘Murdered’ 17 Years Ago, Man Comes Back to Life. Here is The Real Story
The man has been identified as 50-year-old Nathuni Pal, a resident of Deoria, Bihar.
08th January 2025
Several trains delayed as dense fog covers parts of North India
The temperature recorded by the India Meteorological Department on Tuesday was 11.6 degrees Celsius in Delhi at 5.30 am.
07th January 2025