Launch Details

Launched	22 July 1999
Flight ended	–
Status	Operational
Categories	Space & Earth Science Active satellites
Launch site	Air Force Eastern Test Range, Florida, USA
Owner	United States
NORAD ID	25867
COSPAR ID	1999-040B
Observing

Current orbital elements

Inclination	54.964°
Eccentricity	0.79570
RA ascending node	7.924 hr
Argument perigee	310.680°
Mean anomaly	0.086°
Orbital period	3808.487 min
Epoch of osculation	02 Apr 2026, 16:28

See historical orbital elements »

Derived Quantities

Min Altitude	10133.1 km
Mean Altitude	74413.6 km
Peak Altitude	138694.1 km

Launched alongside

STS 93 IUS R/B(1) IUS R/B(2) IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB IUS DEB