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SBIRS GEO-2 (USA 241) (39120)
COSPAR: 2013-011A | Alt Name: SBIRS GEO-2
Image
Additional Sources
Launch Details
Launch Date
March 19, 2013
Launch Site
Launch Pad
SLC41
Launch Vehicle
Atlas V 401
Orbital Elements
NORAD ID
39120
International Designator
2013-011A
Epoch
Fri, 03 Jul 2026 11:59:14 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
4.52°
Right Ascension
52.51°
Eccentricity
Calculating...
Argument of Perigee
41.06°
Period
1436.10 min
Mean Motion
1.00 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
SBIRS GEO-2 (USA 241)
Alternative Name
SBIRS GEO-2
Type
Payload
Status
Operational
Owner
AFSPC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 39120U 13011A 26184.49947834 -.00000277 00000-0 00000-0 0 9997
2 39120 4.5243 52.5130 0001983 41.0607 317.9531 1.00271289 48696
Source: Celestrak
Summary
The SBIRS GEO-2 (USA 241) satellite was launched on March 19, 2013, from Cape Canaveral Air Force Station's SLC41 using an Atlas V 401 launch vehicle by the manufacturer LMSS for the AFSPC. The spacecraft, configured as a Box + 2 Pan shape with dimensions of 6 meters in length and 2.5 meters in diameter, has a span of 25 meters and carries two SBIRS sensors (scanning and staring) for early warning purposes. It was equipped with 4500 kilograms launch mass, which includes solar arrays and batteries for power supply, while its dry mass is approximately 2500 kilograms. The satellite's mission involves providing early warning capabilities with a designed lifetime of 12 years, utilizing a Leros 1C motor for propulsion. Its radar cross-section (RCS) is measured at 13.5893 square meters.
Physical Characteristics
Length
6
Diameter
2.5
Span
25
Dry Mass
2500
Launch Mass
4500
Shape
Box + 2 Pan
Radar Cross Section
13.5893
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SBIRS GEO SV2
Purpose
Early Warning
Mission
Early Warning
Manufacturer
LMSS
Life Expectancy
12 years
Bus
A2100
Configuration
A2100M
Motor
Leros 1C
Equipment
2 SBIRS sensors (scanning and staring)
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
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