Payload / Mission
ISO
Type
Astrophysics
Orbit
Elliptical Orbit (Elliptical)
SO (Infrared Space Observatory) was a infrared space telescope designed and operated by the European Space Agency (ESA), in cooperation with ISAS and NASA. ISO was designed to study infrared light at wavelengths of 2.5 to 240 micrometers to provide detailed infrared properties of selected Galactic and extragalactic sources.
Associated launch

Ariane 44PSuccess
ISO · Arianespace
Friday, Nov 17, 1995, 01:20 UTC