Galaxy 25


Galaxy 25 launched in 1997, the launch was contracted by International Launch Services, is a medium-powered communications satellite formerly in a geostationary orbit at 97.0° West, above a point in the Pacific Ocean several hundred miles west of the Galapagos Islands. It was manufactured by Space Systems/Loral, part of its FS-1300 line, and is currently owned and operated by Intelsat. The satellite's main C-band transponder cluster covers the United States, Southern Canada, and Mexico; its main Ku band transponder cluster covers the United States, Mexico, and the Northern Caribbean Sea. An additional C-band and a Ku band transponder pair targets the Hawaii.
Galaxy 25 has a projected life of 12 years. It was replaced by Galaxy 19 in late 2008. When it was last in service at 97.1° West, Galaxy 25 transmitted both Free-to-air direct-to-home broadcasting and encrypted subscription channels / services. The replacement satellite, Galaxy 19 was successfully launched on September 24, 2008. Galaxy 25 has been moved to a different orbital position at 93.1° West where it is currently broadcasting several services on its Ku band transponders.

Technical details

Key Parameters
Total TranspondersC-Band:24x36 MHz
Ku-Band:4x54 MHz, 24x27 MHz
PolarizationC-Band:Linear - Horizontal or Vertical
Ku-Band:Linear - Horizontal or Vertical
e.i.r.p.
  • CONUS: 38.8 dBW
  • Alaska: 33.7 dBW
  • Caribbean: 34.3 dBW
  • Hawaii: 33.8 dBW
  • Mexico: 33.8 dBW
  • Puerto Rico / United States Virgin Islands: 34.0 dBW
  • Southern Canada: 37.0 dBW
e.i.r.p.
  • CONUS: 48.3 dBW
  • Alaska: 40.9 dBW
  • Caribbean: 43.4 dBW
  • Hawaii: 46.4 dBW
  • Mexico: 43.6 dBW
  • Puerto Rico / United States Virgin Islands: 44.9 dBW
  • Southern Canada: 44.3 dBW
    • Uplink FrequencyC-Band:5925 to 6425 MHz
    Ku-Band:14.00 to 14.50 GHz
    Downlink FrequencyC-Band3700 to 4200 MHz
    Ku-Band:11.7 to 12.2 GHz
    G/T
  • CONUS: -0.7 dB/K
  • Alaska: -8.2 dB/K
  • Caribbean: -4.7 dB/K
  • Hawaii: -5.2 dB/K
  • Mexico: -5.4 dB/K
  • Puerto Rico / United States Virgin Islands: -4.6 dB/K
  • Southern Canada: -2.3 dB/K
    • G/T
  • CONUS: +0.7 dB/K
  • Alaska: -3.3 dB/K
  • Caribbean: -3.2 dB/K
  • Hawaii: +0.6 dB/K
  • Mexico: -4.2 dB/K
  • Puerto Rico / United States Virgin Islands: +0.7 dB/K
  • Southern Canada: -1.6 dB/K
    • SFD Range C-Band:-92.0 to -71.0 dBW/m2
    Ku-Band:-96.0 to -75.0 dBW/m2

    Platform operators

    The Ku-Band side of the satellite carried the platforms of Pittsburgh International Telecommunications, Inc, Globecast, RRSat, and ABS-CBN, with free-to-air and encrypted television and radio programming in a variety of languages: