Early this morning, SpaceX launched a rocket from space Launch Complex 4E (SLC-4E) at Vandenberg Air Force Base in California. The payload was 10 Iridium satellites. The video below is set to begin seconds before launch.
Shortly after 7 minutes after launch (29:12 on the video below), the Falcon 9 first stage made a perfect landing on the “Just Read The Instructions” droneship in the Pacific Ocean.
The first Iridium satellite deployed at just over 57 minutes following take-off (skip to 1:19:00 in the video to watch), with the following nine being deployed every 100 seconds after.
I really appreciate the embedded timeline in the SpaceX launch videos. They’re very convenient to navigate to important points of interest during the mission.
SpaceX is no stranger to making commercial spaceflight history. They were the first private corporation to launch a liquid-fueled rocket into orbit, send a re-supply spacecraft to the International Space Station, and to land their first-stage rockets back on Earth (for potential re-use), among other milestones. They’re also on the cusp of providing transportation services for International Space Station crew members.
SpaceX Falcon 9 moments before landing on February 19, 2017 – Source: SpaceX
On February 19, 2017, SpaceX accomplished another major feat: They became the first private company to launch from the historic Launch Pad 39A at Kennedy Space Center.
Launch Pad 39A
SpaceX became the first commercial corporation to lease space and operate out of Kennedy Space Center when, in 2014, they signed a 20-year lease for the historic Launch Pad 39A. It was from this launch pad that Apollo 11 blasted off for the Moon, when Neil Armstrong and Buzz Aldrin became the first humans to step foot on our lunar neighbor. It also hosted the first Space Shuttle mission, as well as some 90 others. Now, and for at least the next two decades, it’s in the hands of SpaceX, further cementing the foothold that the private sector has made in the space program.
SpaceX and NASA CRS-10 mission patches – Source: Public Domain and SpaceX
Launch and Landing
At 9:39am EST, on February 19, SpaceX’s Falcon 9 rocket ignited and thundered into the clouds. The rocket was topped with the Dragon capsule, carrying more than 5,000 pounds (2,267 kg) worth of cargo destined for the International Space Station. Dragon arrived and successfully docked with the ISS a couple of days following launch.
Dr. Michelle Thaller, NASA astrophysicist and contributor to myriad space documentary programs, was at Sunday’s launch and graciously shared her experience with me. “Launches are always wonderfully, viscerally exciting,” she said. “The Falcon 9 has a wonderful, big, booming sound, similar to an Atlas, and it puts on a great fireworks show.”
But that wasn’t the only show in store for the lucky spectators in Florida that day. After shoving Dragon into orbit, the Falcon first stage began its 100-kilometer return trip back to Earth. In fewer than 10 minutes following lift-off, the first stage rocket re-emerged through the clouds and landed at Landing Zone 1, just a few miles away from the launch pad. Thaller described the period of suspense in between the launch and the Falcon landing, and said that in some ways there was more anticipation for the landing than there was for the launch.
[N]othing quite prepares you for what happens 7 minutes later, just as the adrenaline is wearing off. Silently, at first, this 230-foot first stage turns around and comes down out of the sky. Smoothly, surreally, a tower the size of a 15 story building just comes and sets itself down. Only once it’s down do you hear the double pop of a sonic boom. It sort of turns your stomach. Things that big are not supposed to just come out of the sky and land. It’s awesome.
Awesome, indeed. See for yourself:
As a kid, I remember watching cartoons that showed rockets landing on various planets. The rockets would turn themselves around and gently land engine-side down. I would always exclaim, “That’s not how rockets work! They burn up, or have parachutes attached and they land in the ocean! How silly.”
Yet, here we are.
I’ve often been jealous about being born too late to experience the race to the Moon. I’ve been somewhat depressed since watching the last Shuttle mission touch down in 2011. But when I take a step back and look at what is occurring today and what we have to look forward to, I can’t help but recognize what a wonderful time it is to be alive.
You can watch the full webcast of the launch on SpaceX’s YouTube channel.
Artist's concept of NuSTAR on orbit. Image Credit: NASA/JPL-Caltech
In anticipation of an upcoming launch, I recently provided an overview of NASA’s next on-orbit telescope, NuSTAR. At that time, the launch date had not yet been set. A news release was issued today, postponing the launch:
The planned launch of NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) mission has been postponed after a March 15 launch status meeting. The launch will be rescheduled to allow additional time to confirm the flight software used by the launch vehicle’s flight computer will issue commands to the rocket as intended.
The time required to complete the software review has moved NuSTAR beyond the March timeframe currently available on the range at Kwajalein. In the interim, NASA will coordinate with the launch site to determine the earliest possible launch opportunity. This is expected to be within the next two months.
At this point, I’m not entirely sure what might have caused the delay. While NASA is calling it a postponement, they had never officially announced the launch date — though it was implied that it would be in March. In any case, I’d much rather them spend a couple of extra months increasing their confidence in a flawless launch and operations than face the potential consequences of hasty action.
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