X Report 12 Mar 2025
SpaceX successfully launches NASA missions, prepares for Crew-10 flight, and overcomes Falcon 9 launch anomalies.
STAR ONE C4 (40733)
COSPAR: 2015-034B | Alt Name: Star One C4
Image
Additional Sources
Launch Details
Launch Date
July 15, 2015
Launch Site
FRGUI
Launch Pad
ELA3
Launch Vehicle
Ariane 5ECA
Orbital Elements
NORAD ID
40733
International Designator
2015-034B
Epoch
Sun, 05 Jul 2026 01:06:46 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
0.02°
Right Ascension
13.54°
Eccentricity
Calculating...
Argument of Perigee
61.89°
Period
1436.08 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
STAR ONE C4
Alternative Name
Star One C4
Type
Payload
Status
Operational
Owner
STONE
Country
Brazil
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 40733U 15034B 26186.04637367 -.00000252 00000+0 00000+0 0 9997
2 40733 0.0209 13.5351 0001864 61.8943 154.3112 01.00272747 40199
Source: Celestrak
Summary
STAR ONE C4 is a meteorology satellite owned by STONE and manufactured by SSL. Launched on July 15, 2015, from ELA3 at the Guiana Space Center using an Ariane 5ECA launch vehicle, it operates in a spin-stabilized configuration. The satellite measures 5.1 meters in length with a diameter of 2.2 meters and a span of 26.1 meters. It has a dry mass of 3,500 kg and a launch mass of 5,565 kg. STAR ONE C4 is equipped with SERVI and GERB equipment and powered by body-mounted solar cells along with batteries. The satellite’s shape is described as box-like with two panels, and it serves meteorological purposes.
Physical Characteristics
Length
5.1
Diameter
2.2
Span
26.1
Dry Mass
3500
Launch Mass
5565
Shape
Box+2 panels
Radar Cross Section
23.3101
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Star One C4
Purpose
Meteorology
Mission
Meteorology
Manufacturer
SSL
Life Expectancy
Unknown
Bus
LS-1300
Configuration
Spin stabilized
Motor
R-4D
Equipment
SERVI, GERB
Power System
Solar cells (body mounted), 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.
Space Brief 3 Mar 2025
Historic moon landing by Firefly Aerospace, Spanish Air and Space Force advances with new simulator, and spotlight on OneWeb's communication satellite.
The 300,000 Swerves Keeping Low Earth Orbit From Crashing
Starlink satellites fired their thrusters to dodge a collision roughly 300,000 times in 2025, about 822 times a day. Behind that number is a fragile, half-automated system of warnings, probabilities, and judgment calls that decides which close approaches are worth a maneuver and which are just noise.
X Report 1 Apr 2025
SpaceX launches its first crewed mission over Earth's poles and FAA concludes investigation into the Starship Flight 7 incident.
Saltzman's Final Warning: Space Force Preps for War | KeepTrack Space Brief
Gen. Chance Saltzman warns of impending space conflict as SpaceX launches 21 SDA satellites from Vandenberg. Space Force shifts from support role to core deterrent.
Space Brief 1 Jan 2025
Today's brief covers a record-breaking Starlink launch, FCC's allocation of additional spectrum for launches, and more. Plus, explore the intricacies of satellite Rassvet-2 No. 1 in our Satellite Spotlight.
All 33 Raptor V3 Engines Ignite in Super Heavy Static Fire | KeepTrack X Report
SpaceX ignited all 33 next-gen Raptor V3 engines on the Super Heavy booster at Starbase, Texas, marking a critical milestone toward the next Starship flight.
Falcon Heavy Attempts ViaSat-3 F3 Launch After Weather Scrub | KeepTrack X Report
SpaceX's Falcon Heavy targets a second launch attempt for ViaSat-3 F3, while Artemis III slips to late 2027 and Musk earns a Mars milestone bonus.