Space Brief 28 Jun 2025
Today's brief covers a Pentagon review of satellite launch options, Kongsberg's completed maritime satellite network, York's new satellite launch, DARPA's project cancellation, and more.
Launch Date
June 30, 1985
Launch Site
Launch Pad
LC36B
Launch Vehicle
Atlas G Centaur
NORAD ID
15873
International Designator
1985-055A
Epoch
Fri, 03 Jul 2026 23:55:38 GMT
Apogee
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Perigee
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Inclination
13.18°
Right Ascension
338.63°
Eccentricity
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Argument of Perigee
102.14°
Period
1438.62 min
Mean Motion
1.00 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Name
INTELSAT 511
Alternative Name
INTELSAT 511
Type
Status
Owner
INTEL
Country
INTELSAT
Constellation
N/A
Related Satellites
Major Events
N/A
1 15873U 85055A 26184.99697550 -.00000364 00000-0 00000-0 0 9992
2 15873 13.1823 338.6256 0013606 102.1385 321.9840 1.00096263124688
Source: Celestrak
Length
6.4
Diameter
2
Span
15.6
Dry Mass
922
Launch Mass
1092
Shape
Box + 2 Pan
Radar Cross Section
8.3048
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
INTELSAT VA F11
Purpose
Communication
Mission
Communication
Manufacturer
FORDA
Life Expectancy
9 years
Bus
FS INTELSAT 5
Configuration
Intelsat-5 bus
Motor
Star 37XF
Equipment
26 C-band transponders, 6 Ku-band transponders
Power System
2 deployable solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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