Space Brief 29 May 2025
Today's brief covers a Japanese military satellite launch, new GPS satellite orders by the Space Force, and a Moog propulsion system contract, among other notable developments.
TELSTAR 14R (37602)
COSPAR: 2011-021A | Alt Name: Estrela do Sul 2
Image
Additional Sources
Launch Details
Launch Date
May 20, 2011
Launch Site
Launch Pad
LC200/39
Launch Vehicle
Proton-M/Briz-M
Orbital Elements
NORAD ID
37602
International Designator
2011-021A
Epoch
Sat, 04 Jul 2026 05:02:04 GMT
Apogee
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Perigee
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Inclination
0.06°
Right Ascension
83.27°
Eccentricity
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Argument of Perigee
355.63°
Period
1436.11 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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Polar Plot
3D Visualization
Basic Satellite Info
Name
TELSTAR 14R
Alternative Name
Estrela do Sul 2
Type
Payload
Status
Operational
Owner
TSKYBR
Country
Brazil
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 37602U 11021A 26185.20977728 -.00000268 00000-0 00000-0 0 9994
2 37602 0.0584 83.2658 0002135 355.6285 215.8580 1.00270916 56000
Source: Celestrak
Summary
TELSTAR 14R, also known as Estrela do Sul 2, is a communication satellite launched on May 20, 2011, from the TYMSC launch site using a Proton-M/Briz-M launch vehicle. The spacecraft has dimensions of 5.5 meters in length and 2.2 meters in diameter with a span of 26.7 meters when its solar arrays are deployed. TELSTAR 14R is equipped with 46 high-power Ku-band transponders, providing significant communication capabilities for its owner, TSKYBR. The satellite has a dry mass of 2150 kilograms and a launch mass of 4970 kilograms, powered by two deployable solar arrays and batteries. Its mission duration is designed to last up to 15 years. Manufactured by LOR with an SSL-1300 bus configuration, the satellite's shape consists of a box structure plus two cruciform panels for deploying its solar arrays. The satellite was successfully stabilized on May 21, 2011, and has been in operation since then.
Physical Characteristics
Length
5.5
Diameter
2.2
Span
26.7
Dry Mass
2150
Launch Mass
4970
Shape
Box + 2 Cruci Pan
Radar Cross Section
12.5893
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Telstar 14R
Purpose
Communication
Mission
Communication
Manufacturer
LOR
Life Expectancy
15 years
Bus
SSL-1300
Configuration
SSL-1300
Motor
R-4D-15-300
Equipment
46 high-power Ku-band transponders
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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