MUMBAI: Insat 4A, the satellite which Tata Sky uses for its direct-to-home (DTH) operations, saw a minor disruption in services for about 30 minutes at around 4 pm due to solar disturbances.

Insat 4A lost earth lock when one of the momentum wheels used for stabilizing the spacecraft got switched off, Indian Space Research Organisation said today in a release.

Isro engineers at master control facility, Hassan, immediately took action to recover the earth lock and orient the satellite properly within about half an hour.