2024-01-08 12:19:13
Aditya L1 ahead of launch – ISRO
MADRID, 8 Ene. (EUROPA PRESS) –
The Aditya-L1 solar observatory of the Indian space agency (ISRO) has been successfully inserted into its target halo orbit, 1.5 million kilometers from Earth.
The insertion took place at 10:30 UTC on January 6. The final phase of the maneuver involved turning on the control motors for a brief period. This mission took off from Earth on September 2.
The orbit of the Aditya-L1 spacecraft is a periodic Halo orbit located approximately 1.5 million kilometers from Earth on the Sun-Earth line in continuous motion with an orbital period of approximately 177.86 Earth days.
This Halo orbit is a three-dimensional periodic orbit in L1 involving the Sun, Earth, and a spacecraft. This specific halo orbit is selected to ensure a mission lifetime of five years, minimizing station-keeping maneuvers and therefore fuel consumption, and ensuring a continuous and unobstructed view of the sun, as reported by ISRO.
Place the Aditya-L1 in a halo orbit around the L1 point has advantages compared to placing it in low Earth orbit (LEO). Thus, it provides a smooth change in velocity between the Sun and the spacecraft throughout the orbit, suitable for helioseismology. Additionally, it is outside the Earth’s magnetosphere, making it suitable for “in situ” sampling of wind and solar particles, and allows continuous, unobstructed observation of the Sun and view of the Earth to enable communication. continues with the ground stations.
The success of this insertion not only signifies ISRO’s capabilities in such complex orbital maneuvers, but also gives confidence to handle future interplanetary missions, ISRO emphasizes.
The Aditya-L1 probe carries seven different measuring devices: three of them to study sunlight and another four to measure plasma and magnetic fields.
The most important is the Visible Emission Line Coronagraph, which will send some 1,440 images daily for subsequent study and analysis on the ground.
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