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	55.848°
Eccentricity	0.78715
RA ascending node	7.816 hr
Argument perigee	310.461°
Mean anomaly	0.022°
Orbital period	3808.655 min
Epoch of osculation	25 May 2026, 13:48

See historical orbital elements »

Derived Quantities

Min Altitude	10824.5 km
Mean Altitude	74416.0 km
Peak Altitude	138007.4 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