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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   26252.54781059 -.00000092  00000-0  38603-4 0  9997
2 16908  50.0073 247.9899 0011294  35.1905  78.3119 12.44517388490891

Epoch: 2026-09-09T13:08Z

TLE epoch observation values (Epoch: 2026-09-09T13:08:50.834Z)

Latitude

44.7091°

Longitude

-173.54485°

Altitude

1,490.13 km

Speed

7.125 km/s

True Right ascension

00h 49m 03s

True Declination

44° 33' 11"

Sunlit

Object was in partial shadow 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

12:07:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,497.07 km

Perigee altitude

1,479.302 km

Semi-major axis

7,866.323 km

Eccentricity

0.00113

Inclination

50.0073°

RAAN

247.9899°

Arg. of periapsis

35.1905°

True anomaly

78.43867°

Mean anomaly

78.3119°

Eccentric anomaly

78.37528°

Mean motion

3.1109 °/min

Orbital period

115.72 mins

BSTAR

0.000038603

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

JAS 1 (FUJI 1), 16909

H-1 R/B(MABES), 16910

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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.
8 mins	2026-09-10 00:13:21.543Z	148.349° SSE	2026-09-10 00:17:21.543Z	120.406° SE	15.264°	2026-09-10 00:21:21.543Z	92.421° ESE
16 mins	2026-09-10 02:10:21.543Z	212.307° SW	2026-09-10 02:17:21.543Z	148.724° SSE	61.413°	2026-09-10 02:26:21.543Z	59.873° ENE
16 mins	2026-09-10 04:12:21.543Z	262.737° W	2026-09-10 04:19:21.543Z	327.716° NNW	57.693°	2026-09-10 04:28:21.543Z	56.327° ENE
15 mins	2026-09-10 06:16:21.543Z	298.297° NW	2026-09-10 06:23:21.543Z	7.834° NNE	44.548°	2026-09-10 06:31:21.543Z	73.649° E
16 mins	2026-09-10 08:18:21.543Z	305.796° NW	2026-09-10 08:26:21.543Z	34.97° NE	69.532°	2026-09-10 08:34:21.543Z	110.503° ESE
15 mins	2026-09-10 10:20:21.543Z	293.811° NW	2026-09-10 10:27:21.543Z	234.843° WSW	45.162°	2026-09-10 10:35:21.543Z	161.36° 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: 2026-09-09T13:08:50.834Z)

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