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NIMIQ 1, 25740

Orbit data source: Space-Track

NIMIQ 1, 25740 is a payload satellite owned by Telesat (CA) in GEO that was launched on Thu, 20 May 1999 UTC via a PROTON-K/DM-2M launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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 src="https://www.satcat.com/sats-embedded/25740?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/25740?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25740, 1999-027A

Orbit

GEO

Country

Related business

Telesat (CA)

Manufacturer

LMCSS

Mission

Non-operational Commercial Communications

Bus & Motor

A2100AX, LEROS 1C

Mass

3,646 kg wet, ~1,500 kg dry

Launch date (UTC)

1999-05-20 (27 years ago)

Launch vehicle

PROTON-K/DM-2M

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 10.5 m

Radar Cross Section

17.700 m², Large (>1 m²)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 NIMIQ 1
1 25740U 99027A   26171.38933449 -.00000033  00000-0  00000+0 0  9991
2 25740   6.6347  70.7708 0010658 316.8730 296.0155  0.98578074 98804

Epoch: 2026-06-20T09:20Z

TLE epoch observation values (Epoch: 2026-06-20T09:20:38.499Z)

Latitude

-6.35783°

Longitude

-85.30559°

Altitude

36,249.049 km

Speed

3.059 km/s

True Right ascension

21h 33m 50s

True Declination

-6° 21' 05"

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

00:27:49

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

36,314.681 km

Perigee altitude

36,223.774 km

Semi-major axis

42,647.364 km

Eccentricity

0.00107

Inclination

6.6347°

RAAN

70.7708°

Arg. of periapsis

316.873°

True anomaly

295.90568°

Mean anomaly

296.0155°

Eccentric anomaly

295.9606°

Mean motion

0.24644 °/min

Orbital period

1,460.82 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #27 in the year 1999 (1999-05-20 UTC)

SL-12 PLAT, 25742 (Decayed)

SL-12 R/B(1), 25741 (Decayed)

SL-12 R/B(2), 25743

SL-12 DEB, 44588

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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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NIMIQ 1 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.
1440 mins	2026-06-22 13:25:19.126Z	170.362° S	2026-06-22 23:25:19.126Z	172.156° S	37.907°	2026-06-23 13:25:19.126Z	178.873° S

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25740 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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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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

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Check out NIMIQ 1, 25740 on other resources

View NIMIQ 1, 25740 on NASA - NSSDCA Website

View NIMIQ 1, 25740 on Heavens-Above

View NIMIQ 1, 25740 on Keep Track

View NIMIQ 1, 25740 on Celestrak

View NIMIQ 1, 25740 on Gunter's Space Page

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

NIMIQ 1, 25740

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T09:20:38.499Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #27 in the year 1999 (1999-05-20 UTC)

NIMIQ 1 Visibility forecast

25740 neighbors

Co-orbital & Co-planar RSOs

Check out NIMIQ 1, 25740 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago