Space Brief 2 Dec 2025
Today's brief covers China's classified Shijian-28 satellite launch, AI-designed spacecraft records, and upcoming global launch activities.
NORAD ID
43574
International Designator
2018-061F
Epoch
Sat, 04 Jul 2026 01:05:58 GMT
Apogee
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Perigee
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Inclination
86.39°
Right Ascension
49.76°
Eccentricity
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Argument of Perigee
89.45°
Period
100.40 min
Mean Motion
14.34 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
IRIDIUM 154
Alternative Name
Iridium Next SV154
Type
Status
Owner
IRIDS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
1 43574U 18061F 26185.04581453 .00000038 00000-0 64282-5 0 9999
2 43574 86.3949 49.7566 0002259 89.4454 270.7001 14.34218052415820
Source: Celestrak
Length
3.1
Diameter
1.5
Span
9.4
Dry Mass
700
Launch Mass
860
Shape
Half Hex Prism+2 pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Iridium Next SV154
Purpose
Communication, traffic monitoring
Mission
Communication, traffic monitoring
Manufacturer
NGISGA
Life Expectancy
10 years (design), 15 years (planned)
Bus
EliteBus
Configuration
ELiTeBus-1000
Motor
?
Equipment
L-band payload, Ka-band cross-links, Ka-band downlinks, ADS-B payload, AIS-receiver (on 58 satellites)
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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