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	56.488°
Eccentricity	0.78065
RA ascending node	7.736 hr
Argument perigee	310.047°
Mean anomaly	0.459°
Orbital period	3809.037 min
Epoch of osculation	09 Jul 2026, 12:48

See historical orbital elements »

Derived Quantities

Min Altitude	11351.0 km
Mean Altitude	74421.4 km
Peak Altitude	137491.7 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