Astra 1KR


Astra 1KR
COSPAR ID2006-012A
SATCAT no.29055
Mission duration15 years
Spacecraft properties
ManufacturerLockheed Martin
Launch mass4,332 kilograms (9,550 lb)
Start of mission
Launch dateApril 20, 2006 (2006-04-20)
RocketAtlas V 411
Launch siteCape Canaveral SLC-41
Orbital parameters
Reference systemGeocentric
Longitude19.2°E Coordinates: 0°00′N 19°12′E / 0°N 19.2°E / 0; 19.2
Perigee altitude35,774 kilometres (22,229 mi)[1]
Apogee altitude35,811 kilometres (22,252 mi)[1]
Inclination0.06 degrees[1]
Period1436.10 minutes[1]
Epoch24 January 2015, 05:02:48 UTC[1]
Band32 Ku-band
Bandwidth26 MHz
TWTA power140 W

Astra 1KR is one of the Astra geostationary satellites owned by SES. It was launched in April 2006 as a replacement for Astra 1K, which failed to reach orbit on launch in 2002.[2] The launch of Astra 1KR was the first attempted by SES since the Astra 1K failure.

The craft launched to 3.4° east for testing, before moving to Astra 19.2°E, where it replaced Astra 1B, which was effectively decommissioned, and Astra 1C, which was then elderly and running beneath full capacity. It was expected to also replace Astra 2C, which was under-utilised, and to allow that satellite to return to Astra 28.2°E to join 2A/2B/2D to provide additional capacity. However, SES stated that Astra 1L would replace Astra 2C.[3]

The first signals from the craft at 19.2° east were direct replacements for four transponders on the failing Astra 1E.[citation needed]

See also


  1. ^ a b c d e "ASTRA 1KR Satellite details 2006-012A NORAD 29055". N2YO. 24 January 2015. Retrieved 25 January 2015.
  2. ^ "ASTRA 1K satellite stabilised" (Press release). SES ASTRA. November 28, 2002. Retrieved January 26, 2012.
  3. ^ "SES ASTRA PROCURES TWO SATELLITES WITH LOCKHEED MARTIN" (Press release). SES ASTRA. June 17, 2003. Retrieved January 26, 2012.

External links

  • Astra 1KR page on SES
  • Official Astra consumers/viewers' website
  • Official SES trade/industry site
  • SES fleet information and map
  • Astra 1KR Ku-band Europe Beam footprint(s) at SatBeams