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XM-8, 48838

Orbit data source: Space-Track

XM-8, 48838 is a payload satellite owned by Sirius XM (US) in GEO that was launched on Sun, 06 Jun 2021 UTC via an FALCON 9 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/48838?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

48838, 2021-049A

Orbit

GEO

Country

Related business

Sirius XM Radio Inc (US)

Manufacturer

Maxar Space Sol

Mission

Operational Commercial Communications

Bus & Motor

LS-1300, R-4D

Mass

~7,000 kg wet, ~2,884 kg dry

Launch date (UTC)

2021-06-06 (5 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 15.0 m

Radar Cross Section

81.349 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 XM-8
1 48838U 21049A   26092.37673851 -.00000211  00000-0  00000-0 0  9991
2 48838   0.0442  35.4209 0004773 357.3694 208.4066  1.00271317 17831

Epoch: 2026-04-02T09:02Z

TLE epoch observation values (Epoch: 2026-04-02T09:02:30.207Z)

Latitude

0.01579°

Longitude

-85.16845°

Altitude

35,803.95 km

Speed

3.073 km/s

True Right ascension

16h 04m 44s

True Declination

0° 00' 57"

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

06:24:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,807.922 km

Perigee altitude

35,767.671 km

Semi-major axis

42,165.934 km

Eccentricity

0.00048

Inclination

0.0442°

RAAN

35.4209°

Arg. of periapsis

357.3694°

True anomaly

208.38059°

Mean anomaly

208.4066°

Eccentric anomaly

208.3936°

Mean motion

0.25067 °/min

Orbital period

1,436.16 mins

BSTAR

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Other satellites on launch #49 in the year 2021 (2021-06-06 UTC)

FALCON 9 R/B, 48839

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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.

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XM-8 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	2026-04-04 00:35:31.295Z	150.407° SSE	2026-04-04 12:27:31.295Z	150.534° SSE	32.446°	2026-04-05 00:35:31.295Z	150.398° SSE

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48838 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 XM-8, 48838 on other resources

View XM-8, 48838 on NASA - NSSDCA Website

View XM-8, 48838 on Heavens-Above

View XM-8, 48838 on Keep Track

View XM-8, 48838 on Celestrak

View XM-8, 48838 on Gunter's Space Page

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

XM-8, 48838

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-04-02T09:02:30.207Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #49 in the year 2021 (2021-06-06 UTC)

XM-8 Visibility forecast

48838 neighbors

Co-orbital & Co-planar RSOs

Check out XM-8, 48838 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago