X Report 24 Oct 2025
SpaceX achieves a new milestone with its record 139th launch of the year while competition heats up in satellite communications.
OPS 5390 (DMSP 5D-1 F4) (11389)
COSPAR: 1979-050A | Alt Name: DMSP F-4
Image
Additional Sources
Launch Details
Launch Date
June 6, 1979
Launch Site
AFWTR
Launch Pad
SLC10W
Launch Vehicle
Thor DSV-2U
Orbital Elements
NORAD ID
11389
International Designator
1979-050A
Epoch
Sat, 04 Jul 2026 02:48:41 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
98.63°
Right Ascension
139.63°
Eccentricity
Calculating...
Argument of Perigee
91.65°
Period
100.75 min
Mean Motion
14.29 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
OPS 5390 (DMSP 5D-1 F4)
Alternative Name
DMSP F-4
Type
Payload
Status
Non-operational
Owner
SAMSO
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 11389U 79050A 26185.11714568 .00000155 00000-0 77840-4 0 9999
2 11389 98.6311 139.6253 0013113 91.6546 268.6138 14.29348623378128
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
6.1
Diameter
1.5
Span
6.1
Dry Mass
447
Launch Mass
447
Shape
Box + Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
DMSP Block 5D S-5
Purpose
Meteorology
Mission
Meteorology
Manufacturer
RCA
Life Expectancy
Unknown
Bus
Block 5D
Configuration
TIROS-N Bus
Motor
Star 37S
Equipment
see above
Power System
Deployable solar array, 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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