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SSETI-EXPRESS, 28894

Orbit data source: Space-Track

SSETI-EXPRESS, 28894 is a payload satellite owned by ESA (ESA) in SSO that was launched on Thu, 27 Oct 2005 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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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Identifier
28894, 2005-043E
Orbit
SSO
Last TLE update
12 hours ago
Origin
Manufacturer
ESTEC
Mission
Non-operational Civil Technology
Bus & Motor
SSETI, Unknown motor
Mass
77 kg wet, 77 kg dry
Launch date (UTC)
2005-10-27 (20 years ago)
Launch vehicle
KOSMOS 11K65M
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box + 2 Pan, 1.8 m
Radar Cross Section
0.979 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 12 hours ago
0 SSETI-EXPRESS
1 28894U 05043E   25188.97172909  .00000399  00000-0  84018-4 0  9997
2 28894  98.2594 321.5186 0014728 279.6409  80.3129 14.64769203 50364
Epoch: 2025-07-07T23:19Z
TLE epoch observation values (Epoch: 2025-07-07T23:19:17.393Z)
Latitude
-0.00007°
Longitude
45.52273°
Altitude
679.072 km
Speed
7.518 km/s
True Right ascension
21h 26m 04s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
29.81071°
Longitude
41.26325°
Altitude
685.471 km
Speed
7.514 km/s
Apparent Right ascension
17h 41m 24s
Apparent Declination
-11° 05' 05"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
23:02:11
Azimuth
255.244° W
Elevation
0.276°
Doppler factor
1
Orbital elements
Apogee altitude
685.282 km
Perigee altitude
664.506 km
Semi-major axis
7,053.031 km
Eccentricity
0.00147
Inclination
98.2594°
RAAN
321.5186°
Arg. of periapsis
279.6409°
True anomaly
Unknown
Mean anomaly
80.3129°
Eccentric anomaly
Unknown
Mean motion
3.6642 °/min
Orbital period
98.25 mins
BSTAR
0.000084018
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SSETI-EXPRESS 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.
7 mins2025-07-08 21:13:03.458Z33.392° NE2025-07-08 21:17:03.458Z113.949° SE31.917°2025-07-08 21:20:03.458Z163.158° S
4 mins2025-07-08 22:52:03.458Z319.229° NNW2025-07-08 22:53:03.458Z302.739° NW19.066°2025-07-08 22:56:03.458Z255.475° W
7 mins2025-07-09 08:15:03.458Z130.536° SE2025-07-09 08:18:03.458Z74.901° E31.395°2025-07-09 08:22:03.458Z5.724° NNE
4 mins2025-07-09 09:54:03.458Z240.827° WSW2025-07-09 09:55:03.458Z257.483° W19.077°2025-07-09 09:58:03.458Z305.144° NW
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