Launch Date
March 31, 2015
Launch Site
Plesetsk Cosmodrome, Russia
Launch Pad
LC133/3
Launch Vehicle
Rokot-KM
NORAD ID
40555
International Designator
2015-020D
Epoch
Sat, 04 Jul 2026 07:28:26 GMT
Apogee
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Perigee
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Inclination
82.52°
Right Ascension
218.06°
Eccentricity
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Argument of Perigee
227.69°
Period
105.77 min
Mean Motion
13.61 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
Cosmos 2504
Alternative Name
Kosmos-2504
Type
Status
Owner
Russian Ministry of Defense
Country
Russia
Constellation
N/A
Related Satellites
Major Events
Conducted multiple orbital maneuvers, including close approaches to its Briz-KM upper stage and other objects.
1 40555U 15020D 26185.31141881 .00000230 00000-0 81104-4 0 9999
2 40555 82.5165 218.0593 0606673 227.6934 127.1276 13.61391755552523
Source: Celestrak
Length
1
Diameter
0.4
Span
1
Dry Mass
50
Launch Mass
50
Shape
Hexagonal cylinder with antennas
Radar Cross Section
0.236
Visual Magnitude
Unknown
Color
Silver
Material Composition
Likely constructed from aluminum and magnesium alloys, typical of similar satellites.
Payload
Classified; possibly includes systems for satellite inspection and communication.
Purpose
Technology, amateur communication
Mission
Believed to be a technology demonstration mission involving orbital rendezvous and inspection maneuvers.
Manufacturer
ISS Reshetnev (unconfirmed)
Life Expectancy
As of February 2025, Cosmos 2504 has been in orbit for nearly 10 years, with multiple recorded maneuvers during its mission.
Bus
Nivelir
Configuration
Unknown
Motor
Unknown
Equipment
Specific equipment details are classified; however, the satellite is believed to be equipped with systems enabling orbital maneuvers and possibly inspection capabilities.
Power System
Solar cells and batteries
ADCS
Spin-stabilized
Transmitter Frequency
Not publicly disclosed
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