INSAT-4B was scheduled to be launched between 3-55 am and 4-28 am IST early
this morning (March 11, 2007) by Ariane 5 launch vehicle from Kourou, French
However, seven minutes before lift-off, an anomaly was detected in the water
deluge system which is used to reduce the acoustic levels for the safety of the
launch pad. This anomaly could not be resolved within the launch window period.
Hence Arianespace decided to postpone the launch which is now expected to take
place in the early hours of tomorrow (March 12, 2007). The health of both
satellite and launch vehicle is normal and they have been put in safe mode.