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IRIDIUM 138 (43071)
COSPAR: 2017-083B | Alt Name: Iridium Next SV138
Image
Additional Sources
Launch Details
Orbital Elements
NORAD ID
43071
International Designator
2017-083B
Epoch
Sat, 04 Jul 2026 01:27:43 GMT
Apogee
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Perigee
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Inclination
86.40°
Right Ascension
314.66°
Eccentricity
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Argument of Perigee
88.28°
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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Polar Plot
3D Visualization
Basic Satellite Info
Name
IRIDIUM 138
Alternative Name
Iridium Next SV138
Type
Payload
Status
Operational
Owner
IRIDS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 43071U 17083B 26185.06091617 .00000081 00000-0 21777-4 0 9993
2 43071 86.3994 314.6590 0002150 88.2751 271.8692 14.34218071446553
Source: Celestrak
Summary
IRIDIUM 138, also known as Iridium Next SV138, is a communication and traffic monitoring satellite owned by IRIDS and manufactured by OATKGA. It was launched on December 23, 2017, from AFWTR SLC4E using the Falcon 9 launch vehicle. The satellite has a configuration of ELiTeBus-1000 with dimensions measuring 3.1 meters in length, 1.5 meters in diameter, and 9.4 meters in span. Its dry mass is 700 kg, and it had a launch mass of 860 kg. Equipped with a L-band payload, Ka-band cross-links and downlinks, and ADS-B payload, the satellite also includes AIS-receiver technology (on 58 satellites). It uses two deployable solar arrays for power generation alongside batteries. Designed to last 10 years but planned for up to 15 years of operation, IRIDIUM 138 is part of a constellation aimed at providing advanced communication and traffic monitoring services.
Physical Characteristics
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
Technical Details
Payload
Iridium Next SV138
Purpose
Communication, traffic monitoring
Mission
Communication, traffic monitoring
Manufacturer
OATKGA
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
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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