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Galaxy 13


Also called Horizons 1

General


Designation 27953 / 03044A
Launch date 1 Oct 2003
Country of origin United States
Mission Telecommunications
Geostationary orbit 127°W
Launch vehicle Zenit Sea Launch #11

Part of the Horizons joint venture. Replaced Galaxy 9.

Tested at 144.5°W and started service on 12 Jan 2004.

External resources


sat-index articles


Technical data


Lyngsat transponder loading



EIRP coverage (dBW)


Ku-band

G/T coverage (dB/K)


Ku-band

Specifications


Prime contractor Boeing
Platform HS-601HP
Mass at launch 4090 kg
Mass in orbit 2630 kg
Dimension  
Solar array dual junction
Stabilization 3-axis
DC power BOL: 9.9 kW
EOL: 8.6 kW
Design lifetime 15 years


C-band (Galaxy 13)


Main transponders 24
Backup transponders 8
Power 40 W (LTWTAs)
Bandwidth  
Coverage North America, Central America, Alaska and Hawaii
EIRP max 40 dBW
G/T max 3 dB/K
Polarization linear H/V cross-pol
C-band transponder frequency chart

The C-band payload is known as Galaxy 13. Will replace Galaxy 9.

Ku-band (Horizons 1)


Main transponders 24
Backup transponders 8
Power 108 W (LTWTAs)
Bandwidth 36 MHz
Coverage Hawaii, Alaska, Conus, par of the Caribbean
EIRP max 48 dBW
G/T max 2 dB/K
Polarization linear H/V
Frequencies uplink: 14.0-14.5 GHz
downlink: 11.7-12.2 GHz

The Ku-band payload is known as Horizons 1, it is owned by JSAT. It will serve to relay via an earth station in Hawaii for Asian regions.

Transponder frequency chart (GHz)


Horizontal
Uplink
Horizontal
Downlink
Transponder Vertical
Downlink
Vertical
Uplink
14.020   1 11.720  
  11.740 2   14.040
14.060   3 11.760  
  11.780 4   14.080
14.100   5 11.800  
  11.820 6   14.120
14.140   7 11.840  
  11.860 8   14.160
14.180   9 11.880  
  11.900 10   14.200
14.220   11 11.920  
  11.940 12   14.240
14.260   13 11.960  
  11.980 14   14.280
14.300   15 12.000  
  12.020 16   14.320
14.340   17 12.040  
  12.060 18   14.360
14.380   19 12.080  
  12.100 20   14.400
14.420   21 12.120  
  12.140 22   14.440
14.460   23 12.160  
  12.180 24   14.480


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