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NASA recovers Hubble Space Telescope control for science operations NASA’s Hubble Space Telescope has been recovered to an operational status. The collection of science data will now resume, confirms the U.S. space agency. Its payload computer first experienced a problem back on 13 June, and the instruments were then placed in a safe configuration and science operations suspended. Since July 15, the spacecraft has been switched to backup hardware. Nasa describes the success of the switch as follows: The switch included bringing online the backup Power Control Unit (PCU) and the backup Command Unit/Science Data Formatter (CU/SDF) on the other side of the Science Instrument and Command & Data Handling (SI C&DH) unit. The PCU distributes power to the SI C&DH components, and the CU/SDF sends and formats commands and data. In addition, other pieces of hardware onboard Hubble were switched to their alternate interfaces to connect to this backup side of the SI C&DH.

Power control unitScience data formatterScience instrumentData handlingபவர் கட்டுப்பாடு அலகுஅறிவியல் கருவிதகவல்கள் கையாளுதல்