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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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Iframe URL

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   26154.86771991 -.00000094  00000-0  23253-4 0  9994
2 16908  50.0065 188.3536 0011289 146.8325 205.8680 12.44516700478723

Epoch: 2026-06-03T20:49Z

TLE epoch observation values (Epoch: 2026-06-03T20:49:31.000Z)

Latitude

-5.72237°

Longitude

-21.14435°

Altitude

1,496.916 km

Speed

7.113 km/s

True Right ascension

12h 14m 13s

True Declination

-5° 41' 30"

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

14:07:20

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,497.069 km

Perigee altitude

1,479.309 km

Semi-major axis

7,866.326 km

Eccentricity

0.00113

Inclination

50.0065°

RAAN

188.3536°

Arg. of periapsis

146.8325°

True anomaly

205.81163°

Mean anomaly

205.868°

Eccentric anomaly

205.83981°

Mean motion

3.11089 °/min

Orbital period

115.72 mins

BSTAR

0.000023253

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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.
17 mins	2026-06-04 04:42:18.658Z	214.554° SW	2026-06-04 04:50:18.658Z	143.093° SSE	41.738°	2026-06-04 04:59:18.658Z	59.517° ENE
16 mins	2026-06-04 06:45:18.658Z	263.961° W	2026-06-04 06:52:18.658Z	332.733° NNW	40.153°	2026-06-04 07:01:18.658Z	56.978° ENE
16 mins	2026-06-04 08:48:18.658Z	295.678° NW	2026-06-04 08:56:18.658Z	11.183° NNE	35.084°	2026-06-04 09:04:18.658Z	74.917° E
16 mins	2026-06-04 10:51:18.658Z	305.863° NW	2026-06-04 10:59:18.658Z	45.035° ENE	43.264°	2026-06-04 11:07:18.658Z	111.929° ESE
15 mins	2026-06-04 12:53:18.658Z	292.582° NW	2026-06-04 13:00:18.658Z	230.697° WSW	34.667°	2026-06-04 13:08:18.658Z	161.755° S
15 mins	2026-06-05 03:49:18.658Z	196.188° SSW	2026-06-05 03:56:18.658Z	135.322° SSE	34.693°	2026-06-05 04:04:18.658Z	65.622° ENE

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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: 2026-06-03T20:49:31.000Z)

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