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INSAT 4A, 28911

Orbit data source: Space-Track

INSAT 4A, 28911 is a payload satellite owned by ISRO (IN) in GEO that was launched on Wed, 21 Dec 2005 UTC via an ARIANE 5GS 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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Iframe URL

https://www.satcat.com/sats-embedded/28911?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

28911, 2005-049A

Orbit

GEO

Last TLE update

14 hours ago

Origin

Indian Space Research Organization (IN / IND)

Manufacturer

ISRO SAC/Banga

Mission

Non-operational Civil Communications

Bus & Motor

I3K, ISRO LAM

Mass

3,081 kg wet, 1,425 kg dry

Launch date (UTC)

2005-12-21 (20 years ago)

Launch vehicle

ARIANE 5GS

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 7.7 m

Radar Cross Section

14.802 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 14 hours ago

0 INSAT 4A
1 28911U 05049A   25206.47651266  .00000068  00000-0  00000-0 0  9995
2 28911   5.5986  75.7540 0005877 107.8148 166.2156  0.99197159 42182

Epoch: 2025-07-25T11:26Z

TLE epoch observation values (Epoch: 2025-07-25T11:26:10.693Z)

Latitude

-5.61474°

Longitude

-125.13062°

Altitude

36,115.208 km

Speed

3.062 km/s

True Right ascension

23h 19m 21s

True Declination

-5° 36' 33"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

4.73372°

Longitude

83.6661°

Altitude

36,065.531 km

Speed

3.065 km/s

Apparent Right ascension

13h 03m 20s

Apparent Declination

0° 51' 59"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:43:12

Azimuth

215.428° SW

Elevation

43.278°

Doppler factor

Orbital elements

Apogee altitude

36,116.576 km

Perigee altitude

36,066.657 km

Semi-major axis

42,469.753 km

Eccentricity

0.00059

Inclination

5.5986°

RAAN

75.754°

Arg. of periapsis

107.8148°

True anomaly

166.23163°

Mean anomaly

166.2156°

Eccentric anomaly

166.22362°

Mean motion

0.24798 °/min

Orbital period

1,451.71 mins

BSTAR

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Other satellites on launch #49 in the year 2005 (2005-12-21 UTC)

METEOSAT 9 (MSG 2), 28912

ARIANE 5 R/B, 28913

ARIANE 5 DEB (SYLDA), 28914

MSG 2 DEB (COOLER COVER), 29106

MSG 2 DEB (BAFFLE COVER), 29676

INSAT 4A 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	2025-07-26 01:27:40.105Z	215.416° SW	2025-07-26 01:27:40.105Z	215.416° SW	34.425°	2025-07-27 01:27:40.105Z	220.68° SW

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28911 neighbors

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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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Check out INSAT 4A, 28911 on other resources

View INSAT 4A, 28911 on NASA - NSSDCA Website

View INSAT 4A, 28911 on Heavens-Above

View INSAT 4A, 28911 on Keep Track

View INSAT 4A, 28911 on Celestrak

View INSAT 4A, 28911 on Gunter's Space Page

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