$4.16B Space Force Contract Goes to SpaceX, X Report 30 May 2026
SpaceX wins a $4.16B US Space Force contract for an airborne threat tracking satellite network. Starlink holds 10,413 satellites in orbit, 10,397 working.
GREB (00731)
COSPAR: 1964-001E | Alt Name: GREB
Image
Additional Sources
Launch Details
Launch Date
January 11, 1964
Launch Site
AFWTR
Launch Pad
75-3-5
Launch Vehicle
Thor SLV-2A Agena D
Orbital Elements
NORAD ID
00731
International Designator
1964-001E
Epoch
Sun, 19 Jul 2026 17:38:06 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
69.90°
Right Ascension
197.14°
Eccentricity
Calculating...
Argument of Perigee
336.02°
Period
103.13 min
Mean Motion
13.96 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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Basic Satellite Info
Name
GREB
Alternative Name
GREB
Type
Payload
Status
Unknown
Owner
NRO/NRL
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 00731U 64001E 26200.73479272 -.00000029 00000+0 18039-4 0 9999
2 00731 69.9039 197.1436 0014815 336.0213 24.0200 13.96313826182121
Source: Celestrak
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
0.5
Diameter
0.5
Span
0.5
Dry Mass
29
Launch Mass
29
Shape
Sphere
Radar Cross Section
0.5096
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
POPPY 3 Alfa
Purpose
SIGINT
Mission
SIGINT
Manufacturer
Naval Research Laboratory
Life Expectancy
ca. 34 month (average)
Bus
NRL 20
Configuration
NRL 20in sphere
Motor
None
Equipment
Unknown
Power System
Solar cells, 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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