Space Brief 4 Mar 2025
Today's brief covers the historic lunar touchdown by Firefly Aerospace's Blue Ghost lander, highlights in military space activity, and a reflection on Pearl Young's pioneering legacy at NASA.
COSMOS 2475 [GLONASS-M] (37869)
COSPAR: 2011-064C | Alt Name: Kosmos-2477
Image
![COSMOS 2475 [GLONASS-M] Satellite Image](/images/sat/37869.jpg)
Additional Sources
Launch Details
Launch Date
November 4, 2011
Launch Site
Launch Pad
LC81/24
Launch Vehicle
Proton-M/Briz-M
Orbital Elements
NORAD ID
37869
International Designator
2011-064C
Epoch
Sat, 04 Jul 2026 20:46:19 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
65.29°
Right Ascension
72.38°
Eccentricity
Calculating...
Argument of Perigee
251.85°
Period
675.73 min
Mean Motion
2.13 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
COSMOS 2475 [GLONASS-M]
Alternative Name
Kosmos-2477
Type
Payload
Status
Operational
Owner
KVR/IACG
Country
Russia
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 37869U 11064C 26185.86550514 -.00000011 00000+0 00000+0 0 9992
2 37869 65.2932 72.3759 0025165 251.8543 290.3901 02.13102062114144
Source: Celestrak
Summary
COSMOS 2475 [GLONASS-M], also known as Kosmos-2477, is a navigation satellite launched on November 4, 2011, from the Tyuratam Space Center (TYMSC) using a Proton-M/Briz-M launch vehicle. It operates with a 3-Axis stabilized Uragan-M bus and has dimensions of 4 meters in length, 1.5 meters in diameter, and spans 7.8 meters. The satellite weighs 1200 kilograms dry and had a launch mass of 1450 kilograms. Equipped with two deployable solar arrays and batteries for power, it is part of the GLONASS navigation system owned by KVR/IACG and manufactured by RESH. The mission's purpose is to provide global navigation services with an expected lifetime of seven years.
Physical Characteristics
Length
4
Diameter
1.5
Span
7.8
Dry Mass
1200
Launch Mass
1450
Shape
Cyl + Ant + 2 Pan
Radar Cross Section
6.3096
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Uragan-M No. 45L
Purpose
Navigation
Mission
Navigation
Manufacturer
RESH
Life Expectancy
7 years
Bus
Uragan
Configuration
3-Axis stabilized Uragan-M bus
Motor
?
Equipment
?
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 30 Jun 2025
SpaceX is exploring alternative options for static fire tests amid infrastructure setbacks, emphasizing their adaptability in operations.
Musk Outlines Starship Tower Catch Plan, February Ends With 83 Sats | KeepTrack X Report
Elon Musk confirms Starship V3 tower catch attempt plans with SN1 headed for ground tests. SpaceX wraps February with 83 Starlink satellites across three launches. 9,826 sats on orbit.
X Report 5 May 2025
SpaceX celebrated Star Wars Day with a successful launch of Starlink satellites, furthering its mission to enhance global internet access. Lego also revealed a new collectible set tied to the franchise.
Space Brief 8 Nov 2025
Today's Space Brief covers major developments in Pentagon procurement methods, strategic satellite intelligence advancements, and increasing interest in drone technology within the defense sector.
Space Brief 31 Aug 2025
SpaceX makes headlines with dual Starlink launches, Rocket Lab inaugurates new launch complex, while AI's impact on space missions and satellite technology continues to stir discussions.
Starlink 17-40 Adds 24 Sats from Vandenberg | KeepTrack X Report
SpaceX's Starlink 17-40 mission launches 24 satellites from Vandenberg SFB at 7:36 a.m. PDT, expanding the 10,705-satellite constellation.
Space Brief 28 Mar 2025
Today's updates focus on significant developments in U.S. national security space launches, Army space training, potential shifts in satellite procurement strategies, and the Meteor 2-21 satellite.