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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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https://www.satcat.com/sats-embedded/16908?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

16908, 1986-061A

Orbit

LEO

Country

JP / JPN

Related business

JAXA (Japan Aerospace Exploration Agency) (JP)

Manufacturer

Kawasaki

Mission

Operational Civil Geodetic

Bus & Motor

EGP, Unknown motor

Mass

685 kg wet, 685 kg dry

Launch date (UTC)

1986-08-12 (40 years ago)

Launch vehicle

H-1

Launch site

Tanegashima Space Center (TNSTA)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 1.1 m

Radar Cross Section

3.631 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 EGS (AJISAI)
1 16908U 86061A   26072.58978535 -.00000096  00000-0  94091-5 0  9996
2 16908  50.0081  81.3542 0011281 297.0598 219.9554 12.44515656468480

Epoch: 2026-03-13T14:09Z

TLE epoch observation values (Epoch: 2026-03-13T14:09:17.454Z)

Latitude

17.49884°

Longitude

-137.45041°

Altitude

1,494.243 km

Speed

7.116 km/s

True Right ascension

16h 24m 22s

True Declination

17° 24' 35"

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

01:47:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,497.067 km

Perigee altitude

1,479.319 km

Semi-major axis

7,866.33 km

Eccentricity

0.00113

Inclination

50.0081°

RAAN

81.3542°

Arg. of periapsis

297.0598°

True anomaly

219.87247°

Mean anomaly

219.9554°

Eccentric anomaly

219.91393°

Mean motion

3.11089 °/min

Orbital period

115.72 mins

BSTAR

0.0000094091

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Other satellites on launch #61 in the year 1986 (1986-08-12 UTC)

H-1 R/B(MABES), 16910

JAS 1 (FUJI 1), 16909

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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	2026-03-14 00:59:05.869Z	154.029° SSE	2026-03-14 01:04:05.869Z	119.474° SE	15.537°	2026-03-14 01:08:05.869Z	91.344° ESE
16 mins	2026-03-14 02:57:05.869Z	213.437° SW	2026-03-14 03:04:05.869Z	146.117° SSE	41.819°	2026-03-14 03:13:05.869Z	59.563° ENE
16 mins	2026-03-14 04:59:05.869Z	263.995° W	2026-03-14 05:06:05.869Z	330.27° NNW	40.065°	2026-03-14 05:15:05.869Z	56.771° ENE
15 mins	2026-03-14 07:03:05.869Z	298.958° NW	2026-03-14 07:10:05.869Z	9.095° NNE	35.271°	2026-03-14 07:18:05.869Z	74.648° E
16 mins	2026-03-14 09:05:05.869Z	305.671° NW	2026-03-14 09:13:05.869Z	38.515° NE	43.443°	2026-03-14 09:21:05.869Z	112.023° ESE
15 mins	2026-03-14 11:07:05.869Z	292.9° NW	2026-03-14 11:14:05.869Z	233.541° WSW	34.569°	2026-03-14 11:22:05.869Z	162.71° S

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

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Check out EGS (AJISAI), 16908 on other resources

View EGS (AJISAI), 16908 on NASA - NSSDCA Website

View EGS (AJISAI), 16908 on Heavens-Above

View EGS (AJISAI), 16908 on Keep Track

View EGS (AJISAI), 16908 on Celestrak

View EGS (AJISAI), 16908 on Gunter's Space Page

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

EGS (AJISAI), 16908

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-03-13T14:09:17.454Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #61 in the year 1986 (1986-08-12 UTC)

EGS (AJISAI) Visibility forecast

Co-orbital & Co-planar RSOs

Check out EGS (AJISAI), 16908 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago