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	57.103°
Eccentricity	0.77276
RA ascending node	7.658 hr
Argument perigee	309.558°
Mean anomaly	0.662°
Orbital period	3809.939 min
Epoch of osculation	26 Aug 2026, 03:14

See historical orbital elements »

Derived Quantities

Min Altitude	11991.3 km
Mean Altitude	74434.1 km
Peak Altitude	136876.9 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