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Instrument for Lunar Seismic Activity (ILSA)

NSSDCA ID: 2023-098A-03

Mission Name: Chandrayaan 3


The Instrument for Lunar Seismic Activity (ILSA) on the Chandrayaan 3 lander is designed to measure seismicity around the landing site. The instrument comprises three orthogonal accelerometers based on silicon micro electro mechanical systems (MEMS) technology. The dynamic range is +-0.5 g with a resolution of 100 nano-g/Hz^1/2. Bandwidth is 40 Hz. The instrument is 17.0 x 17.0 x 7.2 cm in size with a mass of 1.8 kg. Power consumption is less than 4 W.

Alternate Names

  • Chandrayaan3/InstrumentforLunarSeismicActivity(ILSA)
  • ILSA

Facts in Brief

Mass: 1.8 kg

Funding Agency

  • Indian Space Research Organization (India)


  • Planetary Science: Geology and Geophysics

Additional Information

Questions and comments about this experiment can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
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