ISRO's family of Earth-observation satellites, which began with IRS-1A in March 1988. Its satellites image India's land, water, crops and coasts.
IRS satellites photograph and scan the Earth from orbit. Their data is used for farming, water resources, forests, city planning, rural development, mineral surveys, the oceans and disaster management.
The satellites carry different instruments, such as cameras and radars, so users can choose the detail, colours and repeat time they need.
The family includes the early IRS-1 satellites and the Cartosat, Resourcesat, Oceansat and RISAT series. Satellites launched since November 2020 carry EOS names, such as EOS-01 and EOS-06. NISAR, launched in July 2025, is also on ISRO's Earth-observation list.
The National Remote Sensing Centre receives and processes their data at its Shadnagar ground station.
ISRO says India has one of the largest groups of remote-sensing satellites in operation. The programme has also had setbacks. ISRO lists EOS-09 (May 2025) and EOS-N1 (January 2026) as lost to PSLV launch failures.