EGS (AJISAI), 16908
Orbit data source: Space-Track
EGS (AJISAI), 16908 is a payload satellite owned by NASDA (JP) in LEO that was launched on Tue, 12 Aug 1986 UTC via an H-1 launch vehicle from the Tanegashima Space Center (TNSTA). 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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16908 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
JP / JPNRelated business
Manufacturer
Kawasaki
Mission
Operational Civil Geodetic
Bus & Motor
EGP, Unknown motor
Mass
685 kg wet, 685 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 1.1 m
Radar Cross Section
3.631 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 EGS (AJISAI)
1 16908U 86061A 25254.24135656 -.00000082 00000-0 10584-3 0 9997
2 16908 50.0088 285.1498 0011327 190.3211 292.9673 12.44513236445658Epoch: 2025-09-11T05:47Z
TLE epoch observation values (Epoch: 2025-09-11T05:47:33.206Z)
Latitude
40.00907°
Longitude
-16.72364°
Altitude
1,487.408 km
Speed
7.126 km/s
True Right ascension
04h 02m 41s
True Declination
39° 51' 20"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
11:51:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,497.113 km
Perigee altitude
1,479.293 km
Semi-major axis
7,866.34 km
Eccentricity
0.00113
Inclination
50.0088°
RAAN
285.1498°
Arg. of periapsis
190.3211°
True anomaly
292.84773°
Mean anomaly
292.9673°
Eccentric anomaly
292.90752°
Mean motion
3.11089 °/min
Orbital period
115.72 mins
BSTAR
0.00010584
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Other satellites on launch #61 in the year 1986 (1986-08-12 UTC)
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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.EGS (AJISAI) 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-09-12 02:26:39.304Z | 150.87° SSE | 2025-09-12 02:31:39.304Z | 116.534° SE | 14.652° | 2025-09-12 02:35:39.304Z | 89.598° E |
| 16 mins | 2025-09-12 04:23:39.304Z | 212.654° SW | 2025-09-12 04:31:39.304Z | 133.71° SE | 41.288° | 2025-09-12 04:39:39.304Z | 60.82° ENE |
| 16 mins | 2025-09-12 06:25:39.304Z | 261.233° W | 2025-09-12 06:33:39.304Z | 340.411° N | 40.515° | 2025-09-12 06:41:39.304Z | 55.393° ENE |
| 15 mins | 2025-09-12 08:29:39.304Z | 296.188° NW | 2025-09-12 08:36:39.304Z | 359.107° N | 35.152° | 2025-09-12 08:44:39.304Z | 72.108° E |
| 16 mins | 2025-09-12 10:32:39.304Z | 306.41° NW | 2025-09-12 10:39:39.304Z | 13.313° NNE | 43.035° | 2025-09-12 10:48:39.304Z | 111.038° ESE |
| 15 mins | 2025-09-12 12:34:39.304Z | 292.306° WNW | 2025-09-12 12:41:39.304Z | 226.37° WSW | 35.438° | 2025-09-12 12:49:39.304Z | 159.802° S |
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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