Friday, May 24, 2019

1st Starlink Broadband Satellites Streak to Orbit on Twice Flown SpaceX Falcon 9: Photos


SpaceX Falcon 9 rocket streaks to orbit with 1st batch of 60 SpaceX manufactured Starlink broadband satellites in this long exposure  image after liftoff at 10:30 p.m. ET on May 23, 2019 from Space Launch Complex-40 on Cape Canaveral Air Force Station, FL on Starlink-1 mission.  Credit: Ken Kremer/kenkremer.com/spaceupclose.com
Ken Kremer -- SpaceUpClose.com & RocketSTEM – 23 May 2019

CAPE CANAVERAL AIR FORCE STATION, FL –  The third time finally proved to be the charm as the inaugural batch of 60 SpaceX Starlink broadband satellites finally lifted off on the third try Thursday evening May 23 as the recycled Falcon 9 rocket streaked to orbit to inaugurate a constellation of next generation of satellites that will revolutionize the way the world accesses and uses the internet in the next few years by slashing prices and broadening coverage to hard to reach places across the globe.

At least that’s the hope and dream of put forth by SpaceX CEO and billionaire founder Elon Musk for his planned network of Low Earth orbiting (LEO) Starlink satellites that will eventually number in the thousands to provide global broadband internet services to customers worldwide.

The Starlink satellite deployments took place as planned approximately an hour after blastoff. 

The Starlink 1 launch was scrubbed twice last week – first for excessive and powerful upper levels winds which could destroy the rocket on ascent through the atmosphere on the originally targeted date of May 15. And second to fix a pesky software issue that was only discovered several hours prior to the second attempt on May 16.


Liftoff of the Starlink 1 mission finally took place at 10:30 p.m. EDT Thursday, May 23 (0230 GMT Friday) from Space Launch Complex-40 (SLC-40) on Cape Canaveral Air Force Station, FL. 

The nighttime skies were mostly clear and offered a stunning spectacle for spectators as Falcon thundered off the launch pad and the engines roar crackled as loud as we’ve ever heard. 

Enjoy our Space UpClose gallery of imagery from the launch and prelaunch activities. Check back as the gallery grows.
SpaceX Falcon 9 rocket blasts off with 1st batch of 60 SpaceX manufactured Starlink broadband satellites at 10:30 p.m. ET on May 23, 2019 from Space Launch Complex-40 on Cape Canaveral Air Force Station, FL on Starlink-1 mission.  Credit: Ken Kremer/kenkremer.com/spaceupclose.com

The 229-foot-tall (70-meter) Falcon 9 ignited at 10;30 p.m. EDT right at the opening of the 90 minute long launch window with 1.7 million pounds of liftoff thrust spewing from the 9 Merlin 1D first stage engines fueled by liquid oxygen and RP-1 propellants. 


9 Merlin 1D engines and 1 Gripper arm + Fire & Ice - Up Close look at SpaceX Falcon 9 Starlink 1 launch on 23 May 2019 at 1030 p.m. EDT from Space Launch Complex-40 on Cape Canaveral Air Force Station, FL that successfully delivered 1st 60 Starlink broadband satellites to LEO. Credit: Ken Kremer/kenkremer.com/spaceupclose.com
The stages separated 2 minutes 34 seconds after launch and the payload fairing halves opened and jettisoned 3 minutes 33 seconds after launch.
Eight minutes later the Falcon 9 first stage successfully made a precision rocket assisted intact and upright touchdown on the ‘Of Course I Still Love You’ droneship prepositioned in the Atlantic Coast off the Carolinas. 

This marks the third successful launch and landing for the first stage booster. 

Falcon 9’s first stage for this mission previously supported the Telstar 18 VANTAGE mission in September 2018 and the Iridium-8 mission in January 2019. 
The launch, landing and satellite deployment events were broadcast live on a SpaceX webcast.
SpaceX Falcon 9 rocket blasts off with 1st batch of 60 SpaceX manufactured Starlink broadband satellites at 10:30 p.m. ET on May 23, 2019 from Space Launch Complex-40 on Cape Canaveral Air Force Station, FL on Starlink-1 mission.  Credit: Ken Kremer/kenkremer.com/spaceupclose.com


Both payload fairings were recovered intact after being fished out of the water by the SpaceX naval fleet.
Developing and building the first 60 Starlink satellites “is one of the hardest engineering projects I’ve ever seen done [and SpaceX has ever undertaken] and its been executed really well,” Musk said as he outlined his first detailed vision of the firms Starlink broadband constellation in a media conference call on May 15 - just hours prior to the original target launch date that eventually was scrubbed minutes before liftoff due to powerful upper altitude winds.
“The goal of the Starlink system is to provide high bandwidth, low latency connectivity, ideally throughout the world  that will offer an alternative to expensive services and also provide internet options to places where no connectivity is currently available.” 

However the entire concept of Starlink remains highly experimental. 

“I think it is important to acknowledge that there is a lot of new technology here. So it’s possible that some of these satellites may not work. In fact, there’s a small possibility that all of the satellites will not work,” Musk explained during the telecon.

“We don’t want to count anything until it’s hatched, but these are, I think, a great design and we’ve done everything we can to maximize the probability of success.”
Credit: Ken Kremer/kenkremer.com/spaceupclose.com

To date none of the LEO constellation systems have worked Musk noted, citing the original Iridium broadband version 1 system “which did not succeed.” 

“It is very difficult and far from a sure thing.” 

Nevertheless Musk’s team is aspiring to make Starlink a huge success. 

More than 1000 satellites must be orbited to get good coverage - which is initially aimed for the US Market. 

That will require more than 15 Falcon 9 launches - of which Starlink 1 is the  maiden mission to get the program literally off the ground.

They will maneuver, maintain altitude and deorbit using Hall thrusters. The ion thruster are powered by Krypton gas – as opposed to Xenon.

“The Starlink mission will be the heaviest SpaceX payload ever at 18.5 tons for either the Falcon 9 or Falcon Heavy.”

Each Starlink satellite weighs approximately 227 kg (500 pounds) for a total mass of 13,600 kg (29964 pounds). 

The Starlink satellites were successfully deployed starting approximately one hour and two minutes after liftoff – at an altitude of 440 kilometers (273 mi). 

They will now use the onboard Krypton ion thrusters as propulsion to reach the operational altitude of 550 km (342 mi)– that’s lower than SpaceX initially planned 1,150 km (741 mi) altitude.  

The Starlink satellites feature a flat-panel design with multiple high-throughput antennas and a single solar array. They are mass produced in SpaceX’s Redmond, Washington facility.

“When you add all the solar panels together the output is about 50% more than the solar arrays on the International Space Station,” said Musk.

Initially Starlink will be aimed at the US market where regulatory approval has been received from the U.S. Federal Communications Commission.  Then it will spread to the rest of the world.

Musk says that 6 more launches of about 60 satellites each will be required to enable  initial coverage and start service in the US.

That involves 7 launches and approximately 420 Starlink satellites. 



Good US coverage will be achieved after a dozen launches.


24 launches are needed for good global coverage and 30 for nearly complete worldwide service.

Watch my SpaceX launch commentary and rocket photos at this Fox 35 Orlando report from May 16 launch attempt:

http://www.fox35orlando.com/home/spacex-trying-again-for-launch-of-falcon-9-rocket

Dr. Ken Kremer/Space UpClose commentary about SpaceX Starlink-1 launch with Fox 35 WOFL Orlando TV News
Watch for Ken’s continuing onsite coverage of NASA, SpaceX, ULA, Boeing, Lockheed Martin, Northrop Grumman and more space and mission reports direct from the Kennedy Space Center, Cape Canaveral Air Force Station, Florida and Wallops Flight Facility, Virginia.
Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news: www.kenkremer.com –www.spaceupclose.com – twitter @ken_kremer – email: ken at kenkremer.com

Dr. Kremer is a research scientist and journalist based in the KSC area, active in outreach and interviewed regularly on TV and radio about space topics.
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Ken’s photos are for sale and he is available for lectures and outreach events

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