Launch Details

Launched	16 July 1991
Flight ended	–
Status	Non-operational
Launch site	Europe's Spaceport, Kourou, French Guiana
Owner	United Kingdom
NORAD ID	21575
COSPAR ID	1991-050B
Alternative names	UO-22
Observing

Current orbital elements

Inclination	98.375°
Eccentricity	0.00071
RA ascending node	4.110 hr
Argument perigee	3.699°
Mean anomaly	356.425°
Orbital period	99.843 min
Epoch of osculation	20 Dec 2025, 14:40

See historical orbital elements »

Derived Quantities

Min Altitude	753.1 km
Mean Altitude	758.1 km
Peak Altitude	763.2 km

Launched alongside

ERS-1 ORBCOMM-X TUBSAT A SARA ARIANE 40 R/B ARIANE 40 DEB SARA DEB SARA DEB SARA DEB SARA DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB ERS 1 DEB