Galaxy 13

USA

Also called Horizons 1

Launch data:

Designation 27954 / 03044A
Launch date01 Oct 2003 - 04:02:59 UT
Launch site Odyssey, KLA
Launch vehicle Zenit-3SL (#13)
MissionCommercial: Communications
Geostationary orbit:
Perigee / Apogee 35781 x 35790 km
Eccentricity 1,07E-04
Inclination 0.01 deg
Period 1436.07 min
Location 127°W

Part of the joint venture between Panamsat and JSAT named Horizons. To replace Galaxy 9.

Tested at 144.5°W

Specifications

Prime contractor Boeing Satellite Systems
PlatformHS-601HP
OperatorPanAmSat (Intelsat, Ltd.)
Mass at launch 4060 kg
Dry Mass 2630 kg
Dimension  
Solar array dual junction
Stabilization 3-axis
DC power BOL: 9.9 kW
EOL: 8.6 kW
Design lifetime 15 yrs - still active

Location:

DatePositionRemarks
 July 2010  126.97° W 

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  
G/T max  
Polarization  

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  
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

Horizons 1 is Ku-band payload; C-band is on Galaxy 13.

Ref: #7, #15, #226 - update: 03.11.10