Aditya L1 [ISRO]
Aditya L1 is an Indian solar observation satellite to be placed at the Sun-Earth Lagrangian point L1.
The major scientific objectives of the mission are to achieve a fundamental understanding of the physical processes that heat the solar corona, accelerate the solar wind and produce Coronal Mass Ejections (CMEs).
Originally the mission design started as a small LEO satellite carrying only a coronagraph as a payload. In order to get the best science from the Sun, continuous viewing of the Sun is preferred. A Satellite placed in the halo orbit around the L1 Lagrangian point of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/ eclipses. Based on the technical studies, it was found that PSLV-XL developed at ISRO has the capability to launch a satellite which can be placed at a halo orbit around L1 point.
Following instruments have been short-listed for the mission:
Launch is planned on a PSLV-XL rocket in the 2019 timeframe, now delayed to 2021.
|Type / Application:||Science, solar|
|Equipment:||VELC, SUIT, PAPA, ASPEX, SoLEXS, HEL1OS|
|Configuration:||I-1K (I-1000) Bus ?|
|Power:||2 deployable solar arrays, batteries|