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COSMOS 1989 (ETALON 1) (19751)
COSPAR: 1989-001C | Alt Name: Kosmos-1989
Image
Additional Sources
Launch Details
Launch Date
January 10, 1989
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-K/DM-2
Orbital Elements
NORAD ID
19751
International Designator
1989-001C
Epoch
Sat, 04 Jul 2026 06:00:26 GMT
Apogee
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Perigee
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Inclination
64.96°
Right Ascension
71.61°
Eccentricity
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Argument of Perigee
217.53°
Period
675.56 min
Mean Motion
2.13 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
COSMOS 1989 (ETALON 1)
Alternative Name
Kosmos-1989
Type
Payload
Status
Operational
Owner
NPOPM
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 19751U 89001C 26185.25030181 -.00000010 00000-0 00000-0 0 9995
2 19751 64.9551 71.6122 0023325 217.5349 240.9400 2.13156048291731
Source: Celestrak
Summary
COSMOS 1989 (ETALON 1), also known as Kosmos-1989, is a geodesy satellite launched by the Soviet Union on January 10, 1989, from the TYMSC launch site using the Proton-K/DM-2 launch vehicle. It was manufactured by OAZ and operated under NPOPM ownership. The satellite has a spherical configuration with dimensions of approximately 1.3 meters in length, diameter, and span, and it weighs 1230 kg both at launch and dry mass. Equipped with a retroreflector array for its mission, COSMOS 1989 aims to conduct geodesy operations. Its design does not include any motor or power systems. The satellite has an RCS value of 1.2589 and was launched as part of the Etalon PKA No. 1L payload.
Physical Characteristics
Length
1.3
Diameter
1.3
Span
1.3
Dry Mass
1230
Launch Mass
1230
Shape
Sphere
Radar Cross Section
1.2589
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Etalon PKA No. 1L
Purpose
Geodesy
Mission
Geodesy
Manufacturer
OAZ
Life Expectancy
Unknown
Bus
Etalon
Configuration
1.294 m sphere
Motor
None
Equipment
RetroReflector array
Power System
None
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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