HySIS is an ISRO hyperspectral imaging satellite that studies the Earth's surface in visible, near-infrared and shortwave-infrared light. PSLV-C43 launched it on 29 November 2018.
Instead of a few broad colours, HySIS splits light into many narrow, side-by-side bands about 10 nm wide.
It has two imaging spectrometers, one for visible and near-infrared light and one for shortwave infrared, which records 256 bands. Both see 30 m detail across a 30 km strip. Uses include crop-health monitoring, oil-spill detection and soil classification.
HySIS weighed about 380 kg at launch and is built on ISRO's Mini Satellite-2 (IMS-2) bus. It was planned as a 5-year mission.
PSLV-C43 lifted off from the First Launch Pad at Sriharikota at 9:57 IST on 29 November 2018. It flew in the 'Core Alone' form, without strap-on motors.
It also carried 30 international co-passengers, 1 microsatellite and 29 nanosatellites from 8 countries, launched commercially through Antrix.
The public satellite catalogue carries HySIS with an operational flag, in a sun-synchronous orbit of about 632 × 635 km.