IAO
Indian Astronomical Observatory - Hanle
MACE

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MACE Telescope

Major Atmospheric Cerenkov Experiment Telescope (MACE) is an imaging atmospheric Cerenkov telescope (IACT). Installed at the Indian Astronomical Observatory at Hanle, Ladakh, MACE is designed, built and operated by the Bhabha Atomic Research Centre (BARC). It is the highest (in altitude) and second largest Cerenkov telescope in the world.

MACE helps the scientific community enhance its understanding in the fields of astrophysics, fundamental physics, and particle acceleration mechanisms. The Telescope consists of a large-area tessellated light collector of 356 m², made up of 356 mirror panels. A high-resolution imaging camera weighing about 1200 kg, for detection and characterization of the atmospheric Cherenkov events, forms the focal plane instrumentation of the telescope. The elevation over azimuth mounted telescope basket structure has two axes movement capability of ± 270° in azimuth and -26° to +165° in elevation for pointing towards any source in the sky and tracking it. The telescope, which weighs about 180 tons, is supported on six wheels which move on a 27-metre-diameter track.

MACE has an integrated imaging camera, which contains 1088 photo multiplier-based pixels and all the signal processing and data acquisition electronics. The camera communicates the acquired data to the computer system in the control room over optical fiber.

Last updated on March 5, 2026