Live Streaming – PSLV-C57/Aditya-L1 Mission Sep-2nd@ 11:50am

  • Aditya L1 is India’s first-class solar observatory mission to study the Sun.
The spacecraft is expected to be placed in a halo orbit around Lagrange point 1 (L1) of the
Sun-Earth system, which is approximately 1.5 million kilometers from Earth. The
satellite, placed in the halo orbit around point L1, has the main advantage of providing
continuous observation of Sun without occultations/eclipses. This provides the maximum benefit of continuously monitoring the activity of the sun. The spacecraft carries seven payloads for photosphere observation and direct observation of the Sun, while the other payloads conduct in situ studies of particles and fields at the L1 Lagrange point.
The Aditya L1 payload is expected to carry most of the key information for understanding
coronal heating problems, coronal mass ejection, preflare and flare activity and their properties
space dynamics studies in meteorology, particle propagation and fields provides The interplanetary medium, etc. the chromosphere and the outermost layers of the sun (corona) with electromagnetic and
particle detectors. With the special observation point in L1 four charges



  • First time spatially resolved solar disk in the near UV band.
  • CME dynamics close to the solar disk (~ from 1.05 solar radius) and thereby providing information in the acceleration regime of CME which is not observed consistently.
  • On-board intelligence to detect CMEs and solar flares for optimised observations and data volume.
  • Directional and energy anisotropy of solar wind using multi-direction observations.


  • Understanding the Coronal Heating and Solar Wind Acceleration.
  • Understanding initiation of Coronal Mass Ejection (CME), flares and near-earth space weather.
  • To understand coupling and dynamics of the solar atmosphere.
  • To understand solar wind distribution and temperature anisotropy.

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