Space Brief 25 Mar 2025
Today's brief covers SpaceX's launch of a secret US spy satellite, national security satellite launches, and Japan's missile ambitions. Also highlighted are Estonia's AI defense upgrades and autonomous airpower in Australia.
Launch Date
April 22, 1975
Launch Site
PLMSC
Launch Pad
LC132/1
Launch Vehicle
Kosmos 11K65M
NORAD ID
07768
International Designator
1975-034A
Epoch
Sat, 04 Jul 2026 05:58:39 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
82.96°
Right Ascension
117.76°
Eccentricity
Calculating...
Argument of Perigee
114.26°
Period
104.83 min
Mean Motion
13.74 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
COSMOS 729
Alternative Name
Kosmos-729
Type
Status
Owner
VMF
Country
USSR
Constellation
N/A
Related Satellites
Major Events
N/A
1 07768U 75034A 26185.24907022 .00000098 00000-0 88067-4 0 9995
2 07768 82.9647 117.7581 0024274 114.2646 38.7378 13.73645018565379
Source: Celestrak
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.
Length
5
Diameter
2.1
Span
17
Dry Mass
800
Launch Mass
800
Shape
Cyl + Ant
Radar Cross Section
1.5921
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Zaliv No. 8
Purpose
Navigation / Communication
Mission
Navigation / Communication
Manufacturer
OAZ
Life Expectancy
Unknown
Bus
KAUR-1 11F617
Configuration
KAUR-1
Motor
Unknown
Equipment
Unknown
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
Today's brief covers SpaceX's launch of a secret US spy satellite, national security satellite launches, and Japan's missile ambitions. Also highlighted are Estonia's AI defense upgrades and autonomous airpower in Australia.
In 2024, China launched 68 orbital missions. In 2025, the number jumped to 97. In 2026, state media and Western analysts agree the target is 140 or more. Most of that growth is being driven by two state-backed mega-constellations, a half-dozen private launch companies hitting stride, and a deliberate national pivot toward commercial space. Beijing is no longer trying to catch SpaceX. It is trying to build an industrial base that outlasts one.
Today's updates cover Rocket Lab's launch for the U.S. Space Force, Digantara's major funding round, and discussions on national security in space.
SpaceX celebrates 300 successful booster landings, further solidifying its dominance in reusable rocket technology.
China formalized a national VLEO industry alliance with multiple satellites sustaining operations below 300 kilometers altitude. Propulsion startups attracting investment.
Today's brief covers developments in space traffic management, the X-37B spaceplane's upcoming mission, and satellite interference with radio telescopes.
U.S. Space Force selects Boeing's 702MP spacecraft for next-generation MUOS satellites. Rocket Lab delivers Synspective's 10th StriX radar satellite. Track both missions.
Today's briefing covers Blue Origin's New Glenn nearing its first launch, SpaceX's 400th Falcon 9 mission with Starlink satellites, advancements in space-based weather prediction, and more.