SEA LAUNCH DEMO, 25661
Orbit data source: Space-Track
SEA LAUNCH DEMO, 25661 is a payload satellite owned by SeaLaunch (US) in HEO that was launched on Sun, 28 Mar 1999 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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25661 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
22 hours ago
Origin
Manufacturer
Boeing/Kent
Mission
Commercial Technology
Bus & Motor
HS-702 MODEL, Unknown motor
Mass
4,700 kg wet, 4,700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Irr, 5 m
Radar Cross Section
37.500 m², Large (>1 m²)
Expand to show TLE details & history
TLE from 22 hours ago
0 SEA LAUNCH DEMO
1 25661U 99014A 25128.37803520 .00000022 00000-0 22018-3 0 9999
2 25661 0.9958 99.9773 7151682 42.5986 299.5765 2.23254386213061Epoch: 2025-05-08T09:04Z
Definitive object data (Epoch: 2025-05-08T09:04:22.241Z)
Latitude
-0.96396°
Longitude
-2.54311°
Altitude
21,627.131 km
Speed
3.514 km/s
True Right ascension
23h 59m 59s
True Declination
0° 57' 45"
Sunlit
Visualization TLE readout
Latitude
-0.9676°
Longitude
-1.45987°
Altitude
21,260.763 km
Speed
3.567 km/s
Apparent Right ascension
00h 27m 24s
Apparent Declination
-8° 11' 18"
Sunlit
Visualization observer readout
Local Sidereal Time
14:45:40
Azimuth
53.615° ENE
Elevation
-45.771°
Doppler factor
1
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Other satellites on launch #14 in the year 1999 (1999-03-28 UTC)
SEA LAUNCH DEMO 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. |
|---|---|---|---|---|---|---|---|
| 597 mins | 2025-05-09 08:47:48.573Z | 218.933° SW | 2025-05-09 13:02:48.573Z | 181.303° SSW | 34.342° | 2025-05-09 18:44:48.573Z | 152.148° SSE |
| 25 mins | 2025-05-10 06:11:48.573Z | 182.164° SSW | 2025-05-10 06:31:48.573Z | 141.79° SSE | 18.678° | 2025-05-10 06:36:48.573Z | 137.293° SSE |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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