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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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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: 5 days ago

TLE from 5 days ago

0 MOLNIYA 1-91
1 25485U 98054A   25237.17000383 -.00000092  00000-0  00000-0 0  9993
2 25485  64.5499 328.5189 6769518 286.6691  13.4626  2.36442146206573

Epoch: 2025-08-25T04:04Z

TLE epoch observation values (Epoch: 2025-08-25T04:04:48.33Z)

Latitude

0.00012°

Longitude

-66.37352°

Altitude

4,448.064 km

Speed

7.543 km/s

True Right ascension

21h 54m 01s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

14:11:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

33,532.367 km

Perigee altitude

1,310.227 km

Semi-major axis

23,799.434 km

Eccentricity

0.67695

Inclination

64.5499°

RAAN

328.5189°

Arg. of periapsis

286.6691°

True anomaly

73.9541°

Mean anomaly

13.4626°

Eccentric anomaly

36.57385°

Mean motion

0.59114 °/min

Orbital period

608.99 mins

BSTAR

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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 PLAT, 25487 (Decayed)

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

MOLNIYA 1-91 Visibility forecast

Observer location: undefined°, undefined°
Set Observer location

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.
537 mins	2025-08-30 05:51:53.022Z	172.528° S	2025-08-30 06:29:53.022Z	87.219° E	42.768°	2025-08-30 14:48:53.022Z	115.467° SE
288 mins	2025-08-30 17:50:53.022Z	331.607° NNW	2025-08-30 20:17:53.022Z	325.839° NNW	22.523°	2025-08-30 22:38:53.022Z	312.352° NW