Key statistics
Satellite MSX at a glance.
Uptime
10826
Days in orbit
Revolutions
≈ 14.0
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for MSX.
Object identification
Identified? True
Debris? False
Object name: MSX
International designator: 1996-024A
Object number (NORAD): 23851
Object ID (CCSDS): 23851
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.977 minutes
Inclination: 99.0266 deg
SMA: 7277.58 km
Apoapsis: 905.452 km
Periapsis: 893.438 km
RAAN: 281.1837 deg
Eccentricy: 0.00082544
Argument of periapsis: 36.5677 deg
Mean anomaly: 323.6048 deg
Mean motion: 13.98370563 rev/day
Mean motion (dot): -0.00000073 rev/day2
B* drag term: -0.000020204408 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 6:36 a.m. UTC
TLE line 0: 0 MSX
TLE line 1: 1 23851U 96024A 25346.27558443 -.00000073 00000-0 -20204-4 0 9992
TLE line 2: 2 23851 99.0266 281.1837 0008254 36.5677 323.6048 13.98370563512229
Live tracking on map
Real-time ground track for satellite MSX.
In-orbit conjunctions
A list of the most updated potential collisions computed for object MSX.
Associated space launch
MSX (Midcourse Space Experiment) demonstrated different multispectral imaging technologies to identify and track ballistic missiles during flight by observing rocket launches and orbital debris. Additionally it measured the composition and dynamics of the Earth's atmosphere by observing ozone, chloroflourocarbons, carbon dioxide and methane.
MSX was lifted into orbit during the mission ‘Delta II | MSX’, on board a Delta II space rocket.
The launch took place on April 24, 1996, 12:27 p.m. from Space Launch Complex 2W.
For more information about the launch, click the button.
Delta II | MSX
Agency: N/A
Status: Launch Successful
Launch date: April 24, 1996, 12:27 p.m. UTC
Rocket: Delta II
Launch pad: Space Launch Complex 2W
Location: Vandenberg SFB, CA, USA
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