Space Brief 21 Jul 2025
Today's brief covers SpaceX's latest Starlink launch, fascinating exoplanet discoveries, and strategic lunar developments by China and South Korea.
Launch Date
February 17, 2007
Launch Site
Launch Pad
SLC17B
Launch Vehicle
Delta 7925-10C
NORAD ID
30798
International Designator
2007-004E
Epoch
Fri, 03 Jul 2026 23:29:48 GMT
Apogee
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Perigee
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Inclination
6.53°
Right Ascension
97.09°
Eccentricity
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Argument of Perigee
218.55°
Period
1635.59 min
Mean Motion
0.88 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
THEMIS E
Alternative Name
THEMIS E
Type
Status
Owner
GSFC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 30798U 07004E 26184.97903470 -.00000400 00000-0 00000-0 0 9993
2 30798 6.5283 97.0944 8437049 218.5458 13.1584 0.88041892 66064
Source: Celestrak
Length
0.5
Diameter
0.8
Span
49.6
Dry Mass
76
Launch Mass
125
Shape
Box + 2 Ant
Radar Cross Section
0.6325
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
THEMIS P4
Purpose
Research
Mission
Research
Manufacturer
SWALES
Life Expectancy
2 years
Bus
ATK-A100
Configuration
SMEX-Lite Spacecraft
Motor
Unknown
Equipment
see above
Power System
Solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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