Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/22988?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

22988, 1994-009A

Orbit

GEO

Last TLE update

1 day ago

Origin

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 (31 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, 35 m

Radar Cross Section

103.191 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 USA 99
1 22988U 94009A   25132.37728000 -.00000191  00000-0  00000-0 0  9993
2 22988  17.0193  31.9926 0002154   6.3610 237.8428  1.00271303 28933

Epoch: 2025-05-12T09:03Z

Definitive object data (Epoch: 2025-05-12T09:03:16.992Z)

Latitude

-15.30431°

Longitude

-91.04389°

Altitude

35,794.609 km

Speed

3.074 km/s

True Right ascension

18h 20m 40s

True Declination

-15° 17' 22"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-12.37362°

Longitude

-19.96886°

Altitude

35,783.505 km

Speed

3.075 km/s

Apparent Right ascension

23h 13m 38s

Apparent Declination

-19° 44' 02"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

21:59:31

Azimuth

160.218° S

Elevation

27.895°

Doppler factor

Orbital elements

Apogee altitude

35,796.749 km

Perigee altitude

35,778.584 km

Semi-major axis

42,165.803 km

Eccentricity

0.0002154

Inclination

17.0193°

RAAN

31.9926°

Arg. of periapsis

6.361°

True anomaly

237.82191°

Mean anomaly

237.8428°

Eccentric anomaly

237.83235°

Mean motion

0.25067 °/min

BSTAR

Unknown

Orbital period

1436.15 mins

Loading historical data...

22988 neighbors

Authenticating...

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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

TITAN 4 CENTAUR R/B, 22989

USA 99 Visibility forecast

Observer location: undefined°, undefined°

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	2025-05-13 13:33:44.838Z	160.224° S	2025-05-13 22:25:44.838Z	146.169° SSE	40.672°	2025-05-14 13:33:44.838Z	160.164° S

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

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.