Delta 4 rocket launches spy satellite into space

Delta 4 rocket launches spy satellite into space

Delta 4 rocket launches spy satellite into space

The classified spy satellite is owned by the National Reconnaissance Office or NRO, which is one of the most secretive government departments in the United States.

While details about the payload are classified, groups of amateur satellite trackers can use clues to narrow down the nature of the satellite, including its likely orbit and technology.

Earlier, the launch was postponed at least two times - due to strong winds on Wednesday and due to a technical error earlier on Thursday. Assuming confirmation of a problem-free launch Friday, ULA's record will stand at 124 successful flights in a row, including 27 for the NRO.

The Delta IV rocket will deliver a national security satellite into space as part of mission NROL-47 from the National Reconnaissance Office.

The NRO is the U.S, Government agency in charge of designing, building, launching and maintaining America's fleet of intelligence satellites. The common booster core was powered by an RS-68A liquid hydrogen/liquid oxygen engine.

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The third time was the charm for United Launch Alliance and its twice-delayed NROL-47 mission.

The recent launch of the Delta 4 rocket into orbit came days after SpaceX's launch of another secretive satellite codenamed Zuma.

There's an 80 percent chance of favorable weather for the Friday afternoon launch, United Launch Alliance said on Twitter.

The launch was then delayed by about an hour due to a ground system helium issue.

Col. Greg Wood, 30th Space Wing vice commander, was the space launch commander. At present, that mission is scheduled to get underway on Thursday, Jan. 18 from Cape Canaveral Air Force Station's Space Launch Complex 41 located in Floridae launch is scheduled for Jan. 18 from Space Launch Complex-41 at Cape Canaveral Air Force Station, Fla.

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