Orion 1

USA

Also called Telstar 11

Launch data:

Designation 23413 / 94079A
Launch date 29 Nov 1994
Launch site CC, LC-36A
Launch vehicle Atlas-2A (AC-110)
Mission Telecommunications
Geostationary orbit:
Location: 37.5°W

The Centaur delivered Orion 1 into an unprecedented elliptical transfer orbit of 403 x 122762 km x 25.5°. The orbit was then raised to 25010 km x 122766 km x 3.0°. The apogee was then lowered until reaching GEO. The fuel-saving high apogee transfer technique had been used before, but never with such an extreme apogee.

Specifications

Prime contractor Matra Marconi Space
Platform Eurostar-2000
Mass at launch 2350 kg
Payload mass 375 kg
Dimension 1.7 x 1.6 x 2.1 m
Stabilization 3-axis
DC power EOL: 3200 W
Payload power 2500 W (in eclipse)
Design lifetime 12 years

Location:

BeginPositionRemarks
  37.5°W 
 25-26 Feb 2008 321° E manoeuvred off-station


Beacon frequency: 11.4505 GHz LHCP (and 11.4510 LHCP GHz backup) Minimum EIRP: 4.5 dBW BPSK modulated

Ku-band

Main transponders 34
Backup transponders  
Power 15 W
Bandwidth 6 transponders of 36 MHz
28 transponders of 54 MHz
Coverage 3 spots and 1 zone beam to Europe
4 spotsand 1 zone beam to America
EIRP max Spot beam: 50 dBW
Zone beam: 45 dBW
G/T max  
SFD -90 dBW/m²
Polarization Linear H/V

Transponder frequencies

Europe uplink 14.0 - 14.5 GHz
Europe downlink 11.45 - 11.7 GHz & 12.5 - 12.75 GHz
North Am. uplink 14.0 - 14.5 GHz
North Am. downlink 11.7 - 12.2 GHz

Transponder frequency chart (GHz)

Horizontal
Downlink 		Transponder Vertical
Downlink 		Bandwidth (MHz) Downlink
Beam 		European uplink US uplink Type
  5 11.483 54 EU broad 14.278 H 14.278 V trans. or reg.
11.483 14   54 EU spots 14.278 V 14.278 H net., trans. or reg.
  6 11.546 54 EU broad 14.341 H n/a regional
11.546 15   54 EU spots n/a 14.341 H trans atlantic
  7 11.609 54 EU broad 14.404 H 14.431 V trans. or reg.
11.609 16   54 EU spots n/a 14.404 H trans atlantic
  8 11.672 54 EU broad n/a 14.467 V trans atlantic
11.672 17   54 EU spots n/a 14.467 H trans atlantic
11.728 18   54 US broad 14.028 H 14.028 V network
  26 11.728 54 US spots 14.028 V 14.028 H network
11.791 19   54 US broad 14.091 H 14.091 V network
  27 11.791 54 US spots 14.091 V 14.091 H network
11.854 20   54 US broad 14.154 H 14.154 V trans. or reg.
  28 11.854 36 US spots 14.145 V 14.145 H trans. or reg.
  29 11.885 36 US spots 14.1855 V n/a trans atlantic
11.917 21   54 US broad n/a 14.217 V regional
  30 11.926 36 US spots 14.226 V 14.226 H trans. or reg.
11.978 22   54 US broad 14.278 H 14.278 V trans. or reg.
  31 11.978 54 US spots 14.278 V 14.278 V net., trans. or reg.
12.041 23   54 US broad n/a 14.341 V regional
  32 12.041 54 US spots 14.341 V n/a trans atlantic
12.104 24   54 US broad 14.404 H 14.404 V trans. or reg.
  33 12.104 54 US spots 14.404 V n/a trans atlantic
12.167 25   54 US broad 14.467 H n/a trans atlantic
  34 12.167 54 US spots 14.467 V n/a trans atlantic
  1 12.528 54 EU broad 14.028 H 14.028 V network
12.528 9   54 EU spots 14.028 V 14.028H network
  2 12.591 54 EU broad 14.091 H 14.091 V network
12.591 10   54 EU spots 14.091 V 14.091 H network
12.645 11   36 EU spots 14.145 V 14.145 H trans. or reg.
  3 12.654 54 EU broad 14.154 H 14.154 V trans. or reg.
12.685 12   36 EU spots n/a 14.1855 H trans atlantic
  4 12.717 54 EU broad 14.217 H n/a regional
12.726 13   36 EU spots 14.226 V 14.226 H trans. or reg.

Ref: #15, #225 - update: 15.08.08