BAIKONUR COSMODROME, Kazakhstan, December 27, 2011 – The launch of an ILS Proton launch vehicle with the SES-4 satellite was postponed today for approximately 25 days for technical reasons associated with the avionics system of the launch vehicle’s Breeze M upper stage. The additional time is needed due to the required destacking and replacement of the affected avionics unit. The satellite is being launched for SES of Luxembourg and was built by Space Systems/Loral.

The delay was called after Khrunichev engineers at the launch site received an anomalous telemetry reading on the Breeze M upper stage during preflight testing. The vehicle and satellite remain in a safe configuration at the launch site.
 
Please check the ILS website, www.ilslaunch.com for updated information.