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HORIZONS 1 (GALAXY 13), 27954

Orbit data source: Space-Track

HORIZONS 1 (GALAXY 13), 27954 is a payload satellite owned by Panamsat (US) in GEO that was launched on Wed, 01 Oct 2003 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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https://www.satcat.com/sats-embedded/27954?theme=dark&initialShowStats=false

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Identifier

27954, 2003-044A

Orbit

GEO

Country

Related business

SES S.A. (LU)

Manufacturer

Boeing/ES

Mission

Operational Commercial Communications

Bus & Motor

HS-601HP, R-4D-11-300

Mass

4,090 kg wet, ~2,000 kg dry

Launch date (UTC)

2003-10-01 (22 years ago)

Launch vehicle

ZENIT-3SL

Launch site

Sea Launch (SEAL)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 13.1 m

Radar Cross Section

46.266 m², Large (>1 m²)

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Last TLE update: 15 hours ago

TLE from 15 hours ago

0 HORIZONS 1 (GALAXY 13)
1 27954U 03044A   26071.75601043  .00000133  00000-0  00000-0 0  9997
2 27954   1.1691  85.1512 0002219 263.5110 303.8686  1.00270817 45606

Epoch: 2026-03-12T18:08Z

TLE epoch observation values (Epoch: 2026-03-12T18:08:39.301Z)

Latitude

-0.52423°

Longitude

-150.04275°

Altitude

35,781.188 km

Speed

3.075 km/s

True Right ascension

19h 30m 05s

True Declination

0° 31' 25"

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

13:07:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,797.293 km

Perigee altitude

35,778.579 km

Semi-major axis

42,166.073 km

Eccentricity

0.00022

Inclination

1.1691°

RAAN

85.1512°

Arg. of periapsis

263.511°

True anomaly

303.84748°

Mean anomaly

303.8686°

Eccentric anomaly

303.85804°

Mean motion

0.25067 °/min

Orbital period

1,436.16 mins

BSTAR

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Other satellites on launch #44 in the year 2003 (2003-10-01 UTC)

BLOCK DM-SL R/B, 27953

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HORIZONS 1 (GALAXY 13) 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	2026-03-13 08:43:38.711Z	238.068° WSW	2026-03-13 10:28:38.711Z	238.154° WSW	23.669°	2026-03-14 08:43:38.711Z	238.078° WSW

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27954 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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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

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Check out HORIZONS 1 (GALAXY 13), 27954 on other resources

View HORIZONS 1 (GALAXY 13), 27954 on NASA - NSSDCA Website

View HORIZONS 1 (GALAXY 13), 27954 on Heavens-Above

View HORIZONS 1 (GALAXY 13), 27954 on Keep Track

View HORIZONS 1 (GALAXY 13), 27954 on Celestrak

View HORIZONS 1 (GALAXY 13), 27954 on Gunter's Space Page

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

HORIZONS 1 (GALAXY 13), 27954

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-03-12T18:08:39.301Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #44 in the year 2003 (2003-10-01 UTC)

HORIZONS 1 (GALAXY 13) Visibility forecast

27954 neighbors

Co-orbital & Co-planar RSOs

Check out HORIZONS 1 (GALAXY 13), 27954 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago