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NAVSTAR 39 (USA 128), 24320

Orbit data source: Space-Track

NAVSTAR 39 (USA 128), 24320 is a payload satellite in MEO that was launched on Thu, 12 Sep 1996 UTC via a DELTA 7925 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 src="https://www.satcat.com/sats-embedded/24320?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/24320?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

24320, 1996-056A

Orbit

MEO

Last TLE update

23 hours ago

Origin

United States Space Force (US)

Manufacturer

Rockwell/SB

Mission

Non-operational Defense Navigation

Bus & Motor

GPS IIA, STAR 37XFP

Mass

~1,881 kg wet, 860 kg dry

Launch date (UTC)

1996-09-12 (29 years ago)

Launch vehicle

DELTA 7925

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 5.3 m

Radar Cross Section

7.641 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 23 hours ago

0 NAVSTAR 39 (USA 128)
1 24320U 96056A   25151.42376399 -.00000036  00000-0  00000-0 0  9994
2 24320  53.9096 250.1392 0029863 209.4035 185.5090  1.86499099203398

Epoch: 2025-05-31T10:10Z

TLE epoch observation values (Epoch: 2025-05-31T10:10:13.208Z)

Latitude

27.54357°

Longitude

-129.29576°

Altitude

21,585.394 km

Speed

3.77 km/s

True Right ascension

18h 09m 41s

True Declination

27° 30' 28"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-32.22432°

Longitude

-178.90471°

Altitude

21,538.862 km

Speed

3.777 km/s

Apparent Right ascension

14h 05m 59s

Apparent Declination

-41° 16' 20"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

18:50:27

Azimuth

227.048° WSW

Elevation

-13.691°

Doppler factor

Orbital elements

Apogee altitude

21,584.607 km

Perigee altitude

21,418.094 km

Semi-major axis

27,879.488 km

Eccentricity

0.00299

Inclination

53.9096°

RAAN

250.1392°

Arg. of periapsis

209.4035°

True anomaly

Unknown

Mean anomaly

185.509°

Eccentric anomaly

Unknown

Mean motion

0.46625 °/min

Orbital period

772.12 mins

BSTAR

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Other satellites on launch #56 in the year 1996 (1996-09-12 UTC)

DELTA 2 R/B(1), 24323 (Decayed)

DELTA 2 R/B(2) (PAM-D), 24321 (Decayed)

DELTA 2 DEB, 27761 (Decayed)

NAVSTAR 39 (USA 128) 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.
452 mins	2025-06-01 10:28:29.654Z	242.769° WSW	2025-06-01 14:40:29.654Z	34.274° NE	44.131°	2025-06-01 18:00:29.654Z	148.936° SSE

Authenticating...

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Check out NAVSTAR 39 (USA 128), 24320 on other resources

View NAVSTAR 39 (USA 128), 24320 on NASA - NSSDCA Website

View NAVSTAR 39 (USA 128), 24320 on Heavens-Above

View NAVSTAR 39 (USA 128), 24320 on Keep Track

View NAVSTAR 39 (USA 128), 24320 on Celestrak

View NAVSTAR 39 (USA 128), 24320 on Gunter's Space Page

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