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The United Launch Alliance's (ULA's) Delta IV heavy-lift rocket launched the NROL-70 mission from Space Launch Complex-37 at Cape Canaveral Space Force Station in Florida.

It was the final launch for the historic rocket. See the rocket cam footage here.

Credit: ULA

Category

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Tech
Transcript
00:01and vehicle has cleared the tower.
00:06Take normal flight control disturbances for early phase of flight.
00:12All three engines operating nominally.
00:23Vehicle engines operate nominally.
00:25We've just passed 30 seconds into the mission.
00:27The next mark that we're looking for is throttling CORE down.
00:30And we've just started that sequence.
00:33CORE is throttling down as expected.
00:36And we've now reached MPL on CORE right as planned.
00:39Everything looks good.
00:46CORE is at mid-power level.
00:50CORE and starboard strap-on still operating at enhanced power level.
01:00Engine parameters look good.
01:02Flight control surfaces look good.
01:08We have fired the isolation spiral valve on second stage reaction control system.
01:15First step of readying that system for operation.
01:21adjustmentclear system procedure.
01:22Ensign 쓬영enden engine looks good.
01:27And we're passed through Mach 1 in Mach 2.
01:31And we're going to take care of the duration of the delaying for the.?
01:36The timeburner has pickup andstreot engine running in the pan hue room.
01:38Step in the minutes to cover it.
01:39Stay back in a minute.
01:44Stay back in second stage.
01:55And we've fired the power valve, pressurizing the reaction control system on the second
01:59stage.
01:59Pressure is coming up, everything will be good there.
02:08What we're looking for is going to closed-loop guides, coming up in three or four seconds,
02:15and we've got a closed-loop guide vehicle maneuvering as expected.
02:19All three engines continue to look good.
02:31And we are three minutes to Corbeco.
02:43And the vehicle is now one-half, its lift-off weight.
02:46All three engines operating normally, everything looking good.
02:55And the vehicle is now 29 nautical miles in altitude, about 64 miles downrange, traveling
03:02at 5,300 miles per hour.
03:06Everything continues to look good.
03:10And we've just passed through the Karman line, reaching 100 kilometers in altitude.
03:22Everything looking good.
03:26Two minutes to Corbeco coming up on throttle down on the strap-ons.
03:35And we've begun throttling down the strap-on boosters in preparation for cutoff.
03:41We've now achieved mid-power level on the strap-ons.
03:47And cutoff.
03:48We have cutoff port and starboard boosters coming up on strap-on, and we have strap-on separation.
03:54Disturbances look good.
03:57Brottled up the core booster, we're now at EPL, the single-stage booster.
04:06And we've re-enabled steering following separation of the strap-ons.
04:10Everything looking good.
04:26One minute, Corbeco.
04:32Housing temps respond as expected on the RL-10, and we've started LH-2 boost phase chill-down.
04:38Housing temps responding as expected.
04:40Flight control disturbances are small, and the core RS-68 continues to operate as expected.
04:58About 20 seconds to our next mark event throttling down the core booster in preparation for PECO.
05:18And core booster is throttling down, coming up on booster engine cutoff.
05:24And we have PECO.
05:27Cutoff on the booster.
05:29Everything looking good.
05:34We have PECO.
05:37All right.
05:37Very good.
05:39We have good.
05:40And state operation occurred right as expected.
05:42NEDs have deployed.
05:45And we have pre-start, start, and full thrust.
05:51RL-10 is up and running normally.
05:52Everything looking good.
05:54Good.
05:55Good.
05:56Good.
06:08T-minus 10, 9, 8, 7, 6, 5, we have ignition, 2, 1, and liftoff of the final United Launch
06:23Alliance Delta IV heavy rocket, carrying NRL 70 for the National Reconnaissance Office
06:29and closing Delta's six-decade legacy of excellence in space.
07:01We're not reaching FPL on core, we're not going to land, everything is okay.
07:11Core is at mid-power level.
07:14Core and starboard strap-on still operating at enhanced power level.
07:21You are hearing the voice of Rob Gannon providing launch vehicle ascent data.
07:26The parameters look good, light control surfaces look good.
07:32And we have fired the isolation pyrovalve on second stage reactive control system.
07:39First step in readying that system for operation.
07:51And we have passed through Mach 1 and Mach 2.
07:56Rumble strips there, everything looks good.
08:01All three procedures operating as expected.
08:16All three procedures operating as expected, everything looks good.
08:20And we required the pyrovalve, pressurizing reaction control system on second stage.
08:24Pressure is coming up, everything looks good there.
08:33What we're looking for is going to close-loop guides.
08:37We have three or four seconds.
08:40And we've started close-loop guides, vehicle maneuvering as expected.
08:43All three engines continue to look good.
08:56All three engines continue to look good.
08:58They'recovering also be taken by mike-on-line.
08:58In theаш camera.
08:58Be compatible with a masked announcer.
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