TOPSAT, 28891
Orbit data source: Space-Track
TOPSAT, 28891 is a payload satellite owned by UK MoD (UK) 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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28891 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
8 hours ago
Origin
Manufacturer
SSTL/QINQ
Mission
Non-operational Defense Imaging
Bus & Motor
SSTL-150?, Unknown motor
Mass
115 kg wet, 115 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Poly, 1.5 m
Radar Cross Section
1.898 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & history
TLE from 8 hours ago
0 TOPSAT
1 28891U 05043B 25188.90025989 .00000314 00000-0 69190-4 0 9993
2 28891 98.2606 320.0077 0014602 283.6362 76.3214 14.64039818 50285Epoch: 2025-07-07T21:36Z
TLE epoch observation values (Epoch: 2025-07-07T21:36:22.454Z)
Latitude
-0.00001°
Longitude
69.81118°
Altitude
680.725 km
Speed
7.518 km/s
True Right ascension
21h 20m 01s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
-81.72984°
Longitude
166.69375°
Altitude
698.421 km
Speed
7.511 km/s
Apparent Right ascension
05h 11m 40s
Apparent Declination
-62° 09' 23"
Sunlit
Visualization observer readout
Local Sidereal Time
17:28:50
Azimuth
174.739° S
Elevation
-67.608°
Doppler factor
1
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Other satellites on launch #43 in the year 2005 (2005-10-27 UTC)
TOPSAT 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-07-08 07:36:36.923Z | 101.005° ESE | 2025-07-08 07:38:36.923Z | 72.941° E | 17.161° | 2025-07-08 07:41:36.923Z | 28.41° NE |
| 7 mins | 2025-07-08 09:12:36.923Z | 192.581° SSW | 2025-07-08 09:15:36.923Z | 244.814° WSW | 34.854° | 2025-07-08 09:19:36.923Z | 329.935° NNW |
| 7 mins | 2025-07-08 21:09:36.923Z | 35.402° NE | 2025-07-08 21:12:36.923Z | 94.882° ESE | 33.581° | 2025-07-08 21:16:36.923Z | 167.272° S |
| 5 mins | 2025-07-08 22:47:36.923Z | 327.12° NNW | 2025-07-08 22:49:36.923Z | 295.867° NW | 18.699° | 2025-07-08 22:52:36.923Z | 252.442° W |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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