USA 99, 22988
Orbit data source: Space-Track
USA 99, 22988 is a payload satellite owned by USAF SMC (US) in GEO that was launched on Mon, 07 Feb 1994 UTC via a TITAN 401A/CENTAUR launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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22988 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Operational Defense Communications
Bus & Motor
MILSTAR, Unknown motor
Mass
4,500 kg wet, ~4,100 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Truss + 2 Dish + 2 Pan, 17.5 m
Radar Cross Section
103.191 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 USA 99
1 22988U 94009A 26061.53715503 -.00000208 00000-0 00000-0 0 9996
2 22988 17.4598 28.8564 0004282 302.8253 292.0306 1.00273117 31881Epoch: 2026-03-02T12:53Z
TLE epoch observation values (Epoch: 2026-03-02T12:53:30.194Z)
Latitude
-14.1975°
Longitude
-91.29709°
Altitude
35,782.107 km
Speed
3.075 km/s
True Right ascension
17h 29m 37s
True Declination
-14° 11' 01"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
06:56:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,805.206 km
Perigee altitude
35,769.096 km
Semi-major axis
42,165.288 km
Eccentricity
0.00043
Inclination
17.4598°
RAAN
28.8564°
Arg. of periapsis
302.8253°
True anomaly
291.98511°
Mean anomaly
292.0306°
Eccentric anomaly
292.00785°
Mean motion
0.25067 °/min
Orbital period
1,436.12 mins
BSTAR
0
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Other satellites on launch #9 in the year 1994 (1994-02-07 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.USA 99 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2026-03-03 03:13:47.995Z | 145.254° SSE | 2026-03-04 02:53:47.995Z | 145.656° SSE | 40.792° | 2026-03-04 03:13:47.995Z | 145.168° SSE |
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22988 neighbors
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Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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