Space Brief 29 May 2025
Today's brief covers a Japanese military satellite launch, new GPS satellite orders by the Space Force, and a Moog propulsion system contract, among other notable developments.
COSMOS 851 (09389)
COSPAR: 1976-085A | Alt Name: Kosmos-851
DECAYED
Image
Additional Sources
Launch Details
Launch Date
August 27, 1976
Launch Site
PLMSC
Launch Pad
LC43/4
Launch Vehicle
Vostok 8A92M
Orbital Elements
NORAD ID
09389
International Designator
1976-085A
Decay Date
8/5/1989
Basic Satellite Info
Name
COSMOS 851
Alternative Name
Kosmos-851
Type
Payload
Status
Decayed
Owner
GRU
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
Apologies, there is no summary for this satellite yet. I am working to generate these for every object in the catalog, but it is going to take time.
Physical Characteristics
Length
3.2
Diameter
1.3
Span
13.1
Dry Mass
1750
Launch Mass
1750
Shape
Cyl + Ant
Radar Cross Section
23.5116
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Ikar No. 6L
Purpose
Unknown
Mission
Unknown
Manufacturer
YUZH
Life Expectancy
Unknown
Bus
Tselina-D
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
SpaceX Lands $2.29B Space Force Contract, X Report 27 May 2026
SpaceX wins a $2.29 billion US Space Force contract for a military space data network, NASA adds 6 crew missions, and Starship V3 makes its first flight.
Space Brief 28 Jul 2025
Today's highlights include SpaceX's rapid Starlink launches, insights into China's Mars sample return mission, and ULA's future launch plans. Also, a new Space Force general takes the reins of the U.S. missile defense program.
X Report 25 Nov 2025
In today's report, we explore the latest updates from SpaceX's ongoing launch initiatives, Starship progress, and emerging competition in satellite internet, highlighting a new contender that could challenge Starlink's dominance.
SpaceX Starfall Secret Capsule Targets Space Manufacturing | KeepTrack X Report
SpaceX's disk-shaped Starfall reentry vehicle debuts as the constellation hits 10,671 working satellites across low Earth orbit.
SpaceX Resumes Starlink Deployments After Satellite Issues | KeepTrack X Report
SpaceX launches 29 Starlink satellites in first deployment since recent satellite issues. Falcon 9 also delivers Italy's COSMO-SkyMed CSG-FM3 from Vandenberg. Starship plans solidified for 2026.
Seismic Networks Now Track Space Junk, Pentagon Faces Golden Dome Cost Challenges | KeepTrack Space Brief
Johns Hopkins researchers use seismic networks to track space debris in near real-time. Pentagon faces Golden Dome production scale challenges. SpaceX launches 25 Starlink sats in seventh 2026 mission.
Falcon 9 to Lift Cygnus as Artemis II Hits Midpoint | KeepTrack X Report
Falcon 9 targets ISS Cygnus resupply as Artemis II reaches its halfway mark and SpaceX HLS commitment draws NASA praise.