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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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Iframe URL

https://www.satcat.com/sats-embedded/22988?theme=dark&initialShowStats=false

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Identifier

22988, 1994-009A

Orbit

GEO

Country

Related business

United States Space Force (US)

Manufacturer

LMSC

Mission

Operational Defense Communications

Bus & Motor

MILSTAR, Unknown motor

Mass

4,500 kg wet, ~4,100 kg dry

Launch date (UTC)

1994-02-07 (32 years ago)

Launch vehicle

TITAN 401A/CENTAUR

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Truss + 2 Dish + 2 Pan, 17.5 m

Radar Cross Section

103.191 m², Large (>1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 USA 99
1 22988U 94009A   26012.16351613 -.00000196  00000-0  00000-0 0  9995
2 22988  17.3851  29.3892 0003957 279.6632 131.4947  1.00272552 31397

Epoch: 2026-01-12T03:55Z

TLE epoch observation values (Epoch: 2026-01-12T03:55:27.793Z)

Latitude

13.47785°

Longitude

-91.25839°

Altitude

35,796.487 km

Speed

3.074 km/s

True Right ascension

05h 17m 05s

True Declination

13° 27' 53"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

06:47:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,803.995 km

Perigee altitude

35,770.626 km

Semi-major axis

42,165.447 km

Eccentricity

0.0004

Inclination

17.3851°

RAAN

29.3892°

Arg. of periapsis

279.6632°

True anomaly

131.52865°

Mean anomaly

131.4947°

Eccentric anomaly

131.51168°

Mean motion

0.25067 °/min

Orbital period

1,436.13 mins

BSTAR

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Other satellites on launch #9 in the year 1994 (1994-02-07 UTC)

TITAN 4 CENTAUR R/B, 22989

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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	2026-01-13 06:17:02.252Z	145.631° SSE	2026-01-14 06:06:02.252Z	145.827° SSE	40.78°	2026-01-14 06:17:02.252Z	145.533° 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

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out USA 99, 22988 on other resources

View USA 99, 22988 on NASA - NSSDCA Website

View USA 99, 22988 on Heavens-Above

View USA 99, 22988 on Keep Track

View USA 99, 22988 on Celestrak

View USA 99, 22988 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

USA 99, 22988

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-01-12T03:55:27.793Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #9 in the year 1994 (1994-02-07 UTC)

USA 99 Visibility forecast

22988 neighbors

Co-orbital & Co-planar RSOs

Check out USA 99, 22988 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago