The launch vehicle, an Ariane 44P rocket, placed ISO successfully into a highly elliptical geocentric orbit, completing one revolution around the Earth every 24 hours.
Kendaraan peluncuran, roket Ariane 44P, mentempatkan ISO berhasil masuk orbit geosentris sangat elips, menyelesaikan satu revolusi mengelilingi bumi setiap 24 jam.