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MOLNIYA 1-91, 25485

Orbit data source: Space-Track

MOLNIYA 1-91, 25485 is a payload satellite owned by VKS RVSN (CIS) in HEO that was launched on Mon, 28 Sep 1998 UTC via an MOLNIYA 8K78M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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/25485?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

25485, 1998-054A

Orbit

HEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

MOLNIYA-1T, Unknown motor

Mass

1,670 kg wet, ~1,620 kg dry

Launch date (UTC)

1998-09-28 (27 years ago)

Launch vehicle

MOLNIYA 8K78M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + Cone + 6 Pan, 4.3 m

Radar Cross Section

15.107 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 MOLNIYA 1-91
1 25485U 98054A   25342.05826812 -.00000121  00000-0  00000-0 0  9993
2 25485  64.6126 312.9268 6738360 285.5281  13.7682  2.36443254209052

Epoch: 2025-12-08T01:23Z

TLE epoch observation values (Epoch: 2025-12-08T01:23:54.365Z)

Latitude

0.00059°

Longitude

-145.15793°

Altitude

4,619.865 km

Speed

7.466 km/s

True Right ascension

20h 51m 31s

True Declination

0° 00' 02"

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

21:53:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

33,458.098 km

Perigee altitude

1,384.359 km

Semi-major axis

23,799.366 km

Eccentricity

0.67384

Inclination

64.6126°

RAAN

312.9268°

Arg. of periapsis

285.5281°

True anomaly

74.33343°

Mean anomaly

13.7682°

Eccentric anomaly

37.0066°

Mean motion

0.59115 °/min

Orbital period

608.99 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

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Other satellites on launch #54 in the year 1998 (1998-09-28 UTC)

SL-6 R/B(1), 25486 (Decayed)

SL-6 R/B(2), 25488 (Decayed)

SL-6 PLAT, 25487 (Decayed)

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MOLNIYA 1-91 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.
409 mins	2025-12-08 23:41:46.705Z	36.596° NE	2025-12-08 23:41:46.705Z	36.596° NE	36.526°	2025-12-09 06:30:46.705Z	104.778° ESE
348 mins	2025-12-09 09:29:46.705Z	328.274° NNW	2025-12-09 12:17:46.705Z	324.018° NNW	25.045°	2025-12-09 15:17:46.705Z	303.026° NW
271 mins	2025-12-09 18:39:46.705Z	60.604° ENE	2025-12-09 20:02:46.705Z	32.825° NE	18.292°	2025-12-09 23:10:46.705Z	28.538° NE

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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 MOLNIYA 1-91, 25485 on other resources

View MOLNIYA 1-91, 25485 on NASA - NSSDCA Website

View MOLNIYA 1-91, 25485 on Heavens-Above

View MOLNIYA 1-91, 25485 on Keep Track

View MOLNIYA 1-91, 25485 on Celestrak

View MOLNIYA 1-91, 25485 on Gunter's Space Page

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

MOLNIYA 1-91, 25485

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2025-12-08T01:23:54.365Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #54 in the year 1998 (1998-09-28 UTC)

MOLNIYA 1-91 Visibility forecast

Co-orbital & Co-planar RSOs

Check out MOLNIYA 1-91, 25485 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago