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NILESAT, 25311

Orbit data source: Space-Track

NILESAT, 25311 is a payload satellite in GEO that was launched on Tue, 28 Apr 1998 UTC via an ARIANE 44P launch vehicle from the French Guiana (FRGUI). 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/25311?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25311, 1998-024A

Orbit

GEO

Last TLE update

2 days ago

Origin

Nilesat Inc (EG)

Manufacturer

MMS/Toulouse

Mission

Non-operational Commercial Communications

Bus & Motor

EUROSTAR 2000, R-4D-11-300

Mass

1,840 kg wet, 795 kg dry

Launch date (UTC)

1998-04-28 (27 years ago)

Launch vehicle

ARIANE 44P

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Hex Poly + 2 Pan, 21.48 m

Radar Cross Section

16.845 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 2 days ago

0 NILESAT
1 25311U 98024A   25145.44156622 -.00000073  00000-0  00000-0 0  9993
2 25311   9.8148  54.8318 0024461 290.8163 341.8593  0.97393731 46565

Epoch: 2025-05-25T10:35Z

TLE epoch observation values (Epoch: 2025-05-25T10:35:51.321Z)

Latitude

-9.81316°

Longitude

-74.7669°

Altitude

36,515.294 km

Speed

3.052 km/s

True Right ascension

21h 49m 51s

True Declination

-9° 48' 13"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

4.39947°

Longitude

38.78877°

Altitude

36,622.379 km

Speed

3.044 km/s

Apparent Right ascension

05h 27m 01s

Apparent Declination

-1° 10' 09"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

05:01:16

Azimuth

170.262° S

Elevation

48.495°

Doppler factor

Orbital elements

Apogee altitude

36,719.392 km

Perigee altitude

36,509.064 km

Semi-major axis

42,992.365 km

Eccentricity

0.00245

Inclination

9.8148°

RAAN

54.8318°

Arg. of periapsis

290.8163°

True anomaly

Unknown

Mean anomaly

341.8593°

Eccentric anomaly

Unknown

Mean motion

0.24348 °/min

Orbital period

1,478.59 mins

BSTAR

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25311 neighbors

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Other satellites on launch #24 in the year 1998 (1998-04-28 UTC)

BSAT-1B, 25312

ARIANE 44P R/B, 25313 (Decayed)

ARIANE DEB (SPELDA), 25314 (Decayed)

NILESAT 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.
1440 mins	2025-05-27 19:39:17.799Z	170.266° S	2025-05-28 00:03:17.799Z	172.213° S	39.263°	2025-05-28 19:39:17.799Z	187.542° SSW

Authenticating...

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Check out NILESAT, 25311 on other resources

View NILESAT, 25311 on NASA - NSSDCA Website

View NILESAT, 25311 on Heavens-Above

View NILESAT, 25311 on Keep Track

View NILESAT, 25311 on Celestrak

View NILESAT, 25311 on Gunter's Space Page

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