The Indian Space Research Organization (ISRO) oversees five major centers and various units. The largest facility is the Vikram Sarabhai Space Center at Trivandrum, near the southern tip of India, where emphasis is placed on propulsion and launch vehicle technology as well as spacecraft subsystems. The ISRO Satellite Center in Bangalore is the lead center for all satellite development. All Indian space launches originate from the Srtharikota High Altitude Range (SHAR) Center on Sriharikota Island in the Bay of Bengal. The Liquid Propulsion Systems Center is actually distributed among facilities at Bangalore, Mahendragiri, and Trivandrum. Finally, the Space Applications Center at Ahmedabad has the responsibility to ensure that practical applications of space technology are realized. ISRO also operates a Telemetry, Tracking, and Command Network for satellite control.