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COSMOS 1861 (18129)
COSPAR: 1987-054A | Alt Name: Kosmos-1861
Image
Additional Sources
Launch Details
Launch Date
June 23, 1987
Launch Site
PLMSC
Launch Pad
LC132/1
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
18129
International Designator
1987-054A
Epoch
Sat, 04 Jul 2026 03:26:13 GMT
Apogee
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Perigee
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Inclination
82.93°
Right Ascension
310.28°
Eccentricity
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Argument of Perigee
265.79°
Period
104.86 min
Mean Motion
13.73 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 1861
Alternative Name
Kosmos-1861
Type
Payload
Status
Unknown
Owner
VMF
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 18129U 87054A 26185.14320691 .00000072 00000-0 61861-4 0 9998
2 18129 82.9274 310.2797 0010259 265.7860 269.0217 13.73268288955863
Source: Celestrak
Summary
COSMOS 1861 (also known as Kosmos-1861) is a KAUR-1 configuration satellite launched on June 23, 1987, from the PLMSC launch site using the Kosmos 11K65M launch vehicle. It was manufactured by OAZ and operated for 1.5 to 2 years with a mission focused on navigation purposes. The satellite has dimensions of 5 meters in length, 2.1 meters in diameter, and spans up to 17 meters when its solar arrays are deployed. Its dry mass is 800 kg, which is also its launch mass. Equipped with Tsikada payload and powered by solar cells and batteries, it was owned by VMF (Soviet Naval Forces). The satellite's shape is cylindrical with antennas, and its radar cross-section is 1.6879 square meters.
Physical Characteristics
Length
5
Diameter
2.1
Span
17
Dry Mass
800
Launch Mass
800
Shape
Cyl + Ant
Radar Cross Section
1.6879
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Tsikada
Purpose
Navigation
Mission
Navigation
Manufacturer
OAZ
Life Expectancy
1.5 to 2 years
Bus
KAUR-1 11F643
Configuration
KAUR-1
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, batteries
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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