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0250 GMT (9:50 p.m. EST)

A little more detail is confirmed from Lockheed Martin on this bolt-cutter. It is used as part of the separation system to release the rocket from the launch pad at liftoff. The device supports the Atlas first stage liquid oxygen fill and drain valve.

0245 GMT (9:45 p.m. EST)

Still no official word on when the launch will be rescheduled. If liftoff is reset for Tuesday night, the launch window extends from 9:34 to 11:34 p.m. EST. The two-hour window on Wednesday opens at 9:30 p.m. EST.

0235 GMT (9:35 p.m. EST)

Here is how the scrub decision was announced:

Anomaly Resolution Team: "The Anomaly Team has researched the bolt-cutter anomaly...The temperatures that it had dropped to is below the qualification temperature. At this time, we are recommending we stand down for tonight's operation."

Launch conductor: "Roger, concur."

Launch conductor: "Launch director, LC."

Launch director: "Go ahead."

Launch conductor: "Recommend we scrub tonight's operation."

Launch director: "Copy and concur, and let's make sure we have a spare ready to go to replace the bolt-cutter."