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Nimiq 1



General


Designation 25740 / 99027A
Launch date 21 May 1999
Country of origin Canada
Mission Telecommunications
Geostationary orbit see below
Launch vehicle Proton #266

GEO DBS satellite operated by Telesat Canada, the well known operator of Anik. The satellite should cost $240 million (in-orbit delivery). ExpressVu Inc. will acquire 17 of the 32 transponders.

The satellite was shipped to Tyuratam for launch but had to be flown back to the US because of technical problems with wiring (on TWTAs). Test in orbit were finished on 22 Jun 1999.

Location


Begin End Position
L: 21 May 1999 Jan 2003 91°W
Feb 2003 Feb 2003 82°W,
Feb 2003 late 2012 91°W (rushed back after problems with Nimiq 2)
late 2012 Mar 2013 91°W, inclined
Apr 2013 Aug 2013 44.5°E (saved a slot registration for Arabsat)


End of life


Out of service Aug 2013
Cause moved to the junk orbit


External resources


sat-index articles


Technical data


Lyngsat transponder loading


EIRP coverage (dBW)


Specifications


Prime contractor Lockheed Martin / Spar Aerospace
Platform A2100AX
Mass at launch 3600 kg
Mass in orbit  
Dimension 5.8 height x 2.4 x 2.4 m
Solar array 27 m
Stabilization 3-axis
DC power EOL: 8600 W
Design lifetime 12 years


Ku-band


Main transponders 32
Backup transponders  
Power 120 W
Bandwidth 24 MHz
Coverage CONUS and most of Canada
EIRP max 55 dBW
G/T max  
Polarization circular
Frequencies uplink: 17.3-17.8 GHz
downlink: 12.2-12.7 GHz

The transponders can be dual-combined to provide 230 W per transponder

Ku-band transponder frequency chart (GHz)


RHCP
Downlink
Transponder LHCP
Downlink
12.224  
  12.239
12.253  
  12.268
12.282  
  12.297
12.311  
  12.326
12.341  
  10 12.355
12.370 11  
  12 12.384
12.399 13  
  14 12.414
12.428 15  
  16 12.443
12.457 17  
  18 12.472
12.486 19  
  20 12.501
12.516 21  
  22 12.530
12.545 23  
  24 12.559
12.574 25  
  26 12.588
12.603 27  
  28 12.618
12.632 29  
  30 12.647
12.661 31  
  32 12676

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