MOLNIYA 1-91 (25485)

COSPAR: 1998-054A | Alt Name: Molniya-1T

Image
MOLNIYA 1-91 Satellite Image
Additional Sources
Launch Details

Launch Date

September 28, 1998

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

25485

International Designator

1998-054A

Epoch

Fri, 03 Jul 2026 07:10:32 GMT

Apogee

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Perigee

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Inclination

64.66°

Right Ascension

283.11°

Eccentricity

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Argument of Perigee

283.03°

Period

609.03 min

Mean Motion

2.36 rev/day

Latitude

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Longitude

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Altitude

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Velocity

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Polar Plot
3D Visualization
Basic Satellite Info

Name

MOLNIYA 1-91

Alternative Name

Molniya-1T

Type

Payload

Status

Unknown

Owner

VKSR

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 25485U 98054A   26184.29898282 -.00000021  00000-0  00000-0 0  9993
2 25485  64.6644 283.1141 6658525 283.0302  15.2372  2.36443066213955

Source: Celestrak

Summary
MOLNIYA 1-91 (also known as Molniya-1T) is a communication satellite launched on September 28, 1998, from the Plesetsk launch site using the Molniya 8K78M launch vehicle. It was manufactured by NPOPMR and has dimensions of 4.4 meters in length, 1.4 meters in diameter, and a span of 8.6 meters with its solar arrays deployed. The satellite's dry mass is 1620 kilograms, and it weighed 1670 kilograms at launch. Its primary mission was communication, powered by six deployable solar arrays and batteries. MOLNIYA 1-91 has a cylindrical shape with six panels and an RCS of 15.4313. The satellite's lifetime was estimated to be three years.
Physical Characteristics

Length

4.4

Diameter

1.4

Span

8.6

Dry Mass

1620

Launch Mass

1670

Shape

Cyl + 6 Pan

Radar Cross Section

15.4313

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Molniya-1T No. 99L

Purpose

Communication

Mission

Communication

Manufacturer

NPOPMR

Life Expectancy

3 years

Bus

Molniya-1T

Configuration

KAUR-2

Motor

KDU-414A (S5.114)

Equipment

Unknown

Power System

6 deployable solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

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