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APPLE, 12545

Orbit data source: Space-Track

APPLE, 12545 is a payload satellite owned by ISRO (IN) in GEO that was launched on Fri, 19 Jun 1981 UTC via an ARIANE 1 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 embed code

<iframe src="https://www.satcat.com/sats-embedded/12545?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/12545?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12545, 1981-057B

Orbit

GEO

Country

IN / IND

Related business

Indian Space Research Organization (IN)

Manufacturer

ISRO SAC/Banga

Mission

Non-operational Civil Communications

Bus & Motor

APPLE, SLV-3-4

Mass

670 kg wet, 313 kg dry

Launch date (UTC)

1981-06-19 (44 years ago)

Launch vehicle

ARIANE 1

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 2 Pan, 1.0 m

Radar Cross Section

2.339 m², Large (>1 m²)

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Last TLE update: 14 hours ago

TLE from 14 hours ago

0 APPLE
1 12545U 81057B   25261.15198500 -.00000126  00000-0  00000-0 0  9993
2 12545   7.6618 299.0086 0028025 221.0101 333.7181  1.00022753119664

Epoch: 2025-09-18T03:38Z

TLE epoch observation values (Epoch: 2025-09-18T03:38:51.503Z)

Latitude

-1.93049°

Longitude

81.45994°

Altitude

35,749.826 km

Speed

3.08 km/s

True Right ascension

08h 53m 58s

True Declination

-1° 55' 43"

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

10:54:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,975.959 km

Perigee altitude

35,739.228 km

Semi-major axis

42,235.73 km

Eccentricity

0.0028

Inclination

7.6618°

RAAN

299.0086°

Arg. of periapsis

221.0101°

True anomaly

333.57545°

Mean anomaly

333.7181°

Eccentric anomaly

333.64682°

Mean motion

0.25005 °/min

Orbital period

1,439.72 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

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Other satellites on launch #57 in the year 1981 (1981-06-19 UTC)

METEOSAT 2, 12544

CAT 3, 12546

ARIANE 1 R/B, 12562 (Decayed)

ARIANE 1 DEB, 14125 (Decayed)

METEOSAT 2 AKM (MAGE 1), 20837

ARIANE 1 DEB, 48343

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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APPLE Visibility

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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.
APPLE is likely not visible in the next few days.

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12545 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out APPLE, 12545 on other resources

View APPLE, 12545 on NASA - NSSDCA Website

View APPLE, 12545 on Heavens-Above

View APPLE, 12545 on Keep Track

View APPLE, 12545 on Celestrak

View APPLE, 12545 on Gunter's Space Page

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

APPLE, 12545

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2025-09-18T03:38:51.503Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #57 in the year 1981 (1981-06-19 UTC)

APPLE Visibility

12545 neighbors

Co-orbital & Co-planar RSOs

Check out APPLE, 12545 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago