About Chandra X-ray Observatory
Group: 3 satellites
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Live Position
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Upcoming Passes
Altitude History
Altitude vs Time
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Two-Line Element Set
1 25867U 99040B 26002.77389707 .00000599 00000-0 00000+0 0 9990
2 25867 53.4579 121.7282 8107582 310.8774 0.1301 0.37803565 16703
Epoch: Jan 2, 2026 •
Age: 247 hours
Current Status
Altitude 69060.2 km
Velocity 2.37 km/s
Sub-Earth Point 8.03°N,
160°E
Launch Date Jul 23, 1999
Age 26.4 years
Type scientific
Technical Details
Classification Payload
Mass 5677.00 kg
Dry Mass 4653.00 kg
Total Mass 5677.00 kg
Length 14.00 m
Diameter 4.30 m
Span 19.50 m
Shape Cyl + 2 Pan
Manufacturer TRW
Bus Type AXAF
Phase Status In Orbit
Owner/State MSFC/US
Large Constellations
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