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XM-4, 29520

Orbit data source: Space-Track

XM-4, 29520 is a payload satellite owned by XM Radio (US) in GEO that was launched on Mon, 30 Oct 2006 UTC via a ZENIT-3SL launch vehicle from the Sea Launch (SEAL). 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/29520?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/29520?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

29520, 2006-049A

Orbit

GEO

Last TLE update

10 hours ago

Origin

Sirius XM Radio Inc (US)

Manufacturer

Boeing/ES

Mission

Non-operational Commercial Communications

Bus & Motor

BSS-702HP, R-4D-11-300

Mass

5,193 kg wet, ~2,700 kg dry

Launch date (UTC)

2006-10-30 (19 years ago)

Launch vehicle

ZENIT-3SL

Launch site

Sea Launch (SEAL)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 40.4 m

Radar Cross Section

61.334 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 10 hours ago

0 XM-4
1 29520U 06049A   25181.48738564 -.00000194  00000-0  00000-0 0  9994
2 29520   1.9314  85.7150 0007938 321.9121   0.7944  0.98815387 47868

Epoch: 2025-06-30T11:41Z

TLE epoch observation values (Epoch: 2025-06-30T11:41:50.119Z)

Latitude

-1.16301°

Longitude

-45.80087°

Altitude

36,165.785 km

Speed

3.062 km/s

True Right ascension

03h 13m 49s

True Declination

-1° 09' 43"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

1.72223°

Longitude

108.60828°

Altitude

36,229.808 km

Speed

3.058 km/s

Apparent Right ascension

13h 54m 58s

Apparent Declination

-3° 58' 43"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

09:43:08

Azimuth

111.179° ESE

Elevation

17.659°

Doppler factor

Orbital elements

Apogee altitude

36,234.741 km

Perigee altitude

36,167.142 km

Semi-major axis

42,579.078 km

Eccentricity

0.00079

Inclination

1.9314°

RAAN

85.715°

Arg. of periapsis

321.9121°

True anomaly

Unknown

Mean anomaly

0.7944°

Eccentric anomaly

Unknown

Mean motion

0.24703 °/min

Orbital period

1,457.32 mins

BSTAR

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29520 neighbors

Authenticating...

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Other satellites on launch #49 in the year 2006 (2006-10-30 UTC)

BLOCK DM-SL R/B, 29521

XM-4 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	2025-06-30 22:06:43.346Z	111.193° ESE	2025-07-01 22:06:43.346Z	115.343° SE	20.202°	2025-07-01 22:06:43.346Z	115.343° SE

Authenticating...

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Check out XM-4, 29520 on other resources

View XM-4, 29520 on NASA - NSSDCA Website

View XM-4, 29520 on Heavens-Above

View XM-4, 29520 on Keep Track

View XM-4, 29520 on Celestrak

View XM-4, 29520 on Gunter's Space Page

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