Space Brief 6 Sep 2025
Today's brief covers China's latest experimental launch to GEO and new commercial satellites, insights from hyperspectral imagery on underground structures, and the Space Force's material testing for Mars missions.
Launch Date
May 15, 1966
Launch Site
AFWTR
Launch Pad
75-1-1
Launch Vehicle
Thor SLV-2A Agena B
NORAD ID
02173
International Designator
1966-040A
Epoch
Sat, 04 Jul 2026 01:40:59 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
100.53°
Right Ascension
43.99°
Eccentricity
Calculating...
Argument of Perigee
257.67°
Period
107.97 min
Mean Motion
13.34 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Name
NIMBUS 2
Alternative Name
Nimbus 2
Type
Status
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 02173U 66040A 26185.07013006 -.00000026 00000-0 44123-4 0 9995
2 02173 100.5276 43.9851 0054633 257.6717 258.2572 13.33719183925873
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
3.6
Diameter
1.4
Span
3.6
Dry Mass
414
Launch Mass
414
Shape
Cone + 2 Pan
Radar Cross Section
1.959
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Nimbus C
Purpose
Meteorology, experimental
Mission
Meteorology, experimental
Manufacturer
GEVF
Life Expectancy
Unknown
Bus
Nimbus
Configuration
Nimbus Bus
Motor
?
Equipment
AVCS, APT, HRIR, MRIR (only #2)
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
Today's brief covers China's latest experimental launch to GEO and new commercial satellites, insights from hyperspectral imagery on underground structures, and the Space Force's material testing for Mars missions.
Today's briefing covers the latest developments in satellite intelligence funding, new mandates affecting space launch and missile defense, and the early conclusion of a private astronaut mission. We also discuss Firefly Aerospace's plans to go public and stunning imagery from NASA's Parker Solar Probe.
Space & Cyber Command disrupted Iran ops as US munition stockpiles drop. Space Force shifts to commercial ground stations & faces acquisition workforce gaps.
Explore China's ambitions to expand its Tiangong space station, NASA's next steps for the Europa Clipper mission, and ESA's efforts to support the European space industry. Discover the latest in satellite tracking and consider the fascinating findings on potential life on Mars.
Discover the latest in satellite tracking with key topics covering the launch of Tranche 1 satellites for the Space Development Agency, a record-setting Transporter-15 mission by Exolaunch, and new defense-focused satellite connectivity solutions by Satlink and Rivada.
Today's Space Brief covers key topics including new defense mandates for space, Firefly Aerospace's public filing, major funding for Varda Space Industries, and updates on SpaceX's Crew-11 mission and a mystery satellite launch.
SpaceX prepares for its 100th Starlink launch while refining its lunar lander design for NASA's Artemis program amidst calls for architectural changes.
SpaceX Falcon 9 booster B1067 set for 36th flight Thursday with Starlink 10-42 mission from Cape Canaveral. Long March 10B debuts Friday in China.