SpaceX-delivered US spy satellite thought destroyed
A US spy satellite that was launched from Cape Canaveral, Florida, aboard a SpaceX rocket on Sunday failed to reach orbit and is assumed to be a total loss, two US officials briefed on the mission said
We're gonna go through four events here, in rapid succession. And those are, in order, MECO stage separation, SES1 and the boost backburn. Now, MECO stands for main engine cut off. That's when the first stage stops firing. There follows stage separation, when first and second stage depart from each other. SES1 is the third event. That stands for second engine start. That's when second stage begins firing. And then the fourth event in that sequence is the boost backburn. That's when first stage begins firing again, to start its trajectory back to landing zone 1.
Now, that sequence will occur at about 15 seconds in duration, starting about 15 seconds from now.
The states have confirmed.
Next major milestone is fairing separation. That should occur any second now. We're not going to show video coverage of it. But we will confirm that the fairings have separated, meaning that Zuma and second stage are the only vehicles continuing on to their final orbit.