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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Edit Public Description
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: 2 days ago
TLE from 2 days ago
0 USA 99
1 22988U 94009A 25259.35179491 -.00000212 00000-0 00000-0 0 9999
2 22988 17.2099 30.6379 0001932 191.3251 170.2631 1.00272804 30214Epoch: 2025-09-16T08:26Z
TLE epoch observation values (Epoch: 2025-09-16T08:26:35.08Z)
Latitude
0.46425°
Longitude
-90.04689°
Altitude
35,793.856 km
Speed
3.074 km/s
True Right ascension
02h 08m 34s
True Declination
0° 27' 50"
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
14:08:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,795.389 km
Perigee altitude
35,779.096 km
Semi-major axis
42,165.38 km
Eccentricity
0.00019
Inclination
17.2099°
RAAN
30.6379°
Arg. of periapsis
191.3251°
True anomaly
170.26684°
Mean anomaly
170.2631°
Eccentric anomaly
170.26497°
Mean motion
0.25067 °/min
Orbital period
1,436.13 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 | 2025-09-17 21:20:42.352Z | 160.025° S | 2025-09-18 13:55:42.352Z | 146.056° SSE | 40.725° | 2025-09-18 21:20:42.352Z | 160.178° S |
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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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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