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Indian Deep Space Network (IDSN) is an Indian network of large antennas and communication facilities that supports the interplanetary spacecraft missions of India. It is located at Byalalu, a village about from Bangalore, India. It was inaugurated on 17 October 2008 by the former ISRO chairman G. Madhavan Nair. The antenna was designed and commissioned by Hyderabad-based Electronics Corporation of India Limited at a cost of Rs 620 million to Rs 650 million (about 13 million US dollars). Similar networks are run by the USA, China, Russia, Europe and Japan. ==Introduction== The network consists of a fully steerable and a DSN antenna which improves the visibility duration when compared with the existing ISRO Telemetry Tracking and Command Network (ISTRAC). The Indian Deep Space Network implements a baseband system adhering to Consultative Committee for Space Data Systems (CCSDS) Standards thus facilitating cross-support among the Telemetry Tracking Command (TTC) agencies. The two antennas at the complex have built-in support facilities. A fibre optic link will provide necessary communication link between the DSN Station and SCC / NCC/ ISSDC. The 18 m antenna has provision to receive two downlink carriers in S-Band and two carriers in X-Band (RCP and LCP), whereas the uplink is either RCP or LCP. It has a G/T of 30/39.5 dB/k (45° elevation, clear sky) for S/X-Band. The 32 m antenna is of a wheel-and-track design. The antenna is designed to provide uplink in both S-Band and X-Band (20 kW) either through RCP or LCP. The reception capability will be in both S-Band and X-Band (simultaneous RCP and LCP). It can receive two carriers in S-Band and two carriers in X-Band. The system will have a G/T of 37.5/51 dB/k (45° elevation, clear sky) for S/X Band. The station may be controlled remotely from the ISTRAC Network Control Centre (NCC) . The IDSN facility in Byalalu also houses the ISRO Navigation Centre (INC). It was launched on 28 May 2013 by V. Narayanasamy. The centre will become active on 12 June 2013, at the time of launch of IRNSS-1, the first of the Indian Regional Navigational Satellite System series of satellites. The INC has a high stability atomic clock. It will be used to co-ordinate across 21 ground stations in India. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Indian Deep Space Network」の詳細全文を読む スポンサード リンク
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