One of the India's communication satellites Insat 4A
lost earth lock around 4pm on 2 January, 2007, disrupting
to Indian Space and Research Organisation (ISRO) the
occurred owing to some solar disturbances and one of
the momentum wheels used for stabilising the spacecraft
got switched off.
ISRO engineers at 'master control facility' at Hassan
swung in to action, setting right the problem in thirty
minutes, restoring services.