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SpaceX launches Falcon 9 rocket with Eutelsat 10B satellite tv for pc – Spaceflight Now

Dwell protection of the countdown and launch of a SpaceX Falcon 9 rocket from House Launch Advanced 40 at Cape Canaveral House Power Station, Florida. The Falcon 9 rocket launched the Eutelsat 10B broadband communications satellite tv for pc for aviation and maritime connectivity. Comply with us on Twitter.

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SpaceX’s oldest lively Falcon 9 rocket booster, in service since 2018, made its last flight Tuesday night time to ship a Eutelsat broadband communications satellite tv for pc into orbit on a mission to offer web companies to airplanes and ships throughout the North Atlantic, Europe, the Center East, and Africa. The mission accomplished a sequence of 4 main satellite tv for pc launches for Eutelsat since early September.

The Eutelsat 10B satellite tv for pc lifted off on prime of a Falcon 9 rocket at 9:57 pm EST Tuesday (0257 GMT Wednesday) from pad 40 at Cape Canaveral House Power Station in Florida. Eutelsat 10B is heading towards a perch in geostationary orbit to beam communications alerts throughout a protection zone from the North Atlantic to Asia, using greater than 100 spot beams to attach airline and cruise ship passengers, maritime crews, and different customers on-the-go .

A launch try Monday night time was scrubbed a few hours earlier than liftoff to “enable for extra pre-flight checkouts,” SpaceX mentioned. And SpaceX defied the chances Tuesday night time after forecasters predicted a 90% probability of unacceptable climate situations for launch.

SpaceX didn’t try to get well the primary stage of the 229-foot-tall (70-meter) Falcon 9 rocket. The launch firm had an settlement with Eutelsat to dedicate the entire Falcon 9’s carry functionality to sending the Eutelsat 10B satellite tv for pc into as excessive of an orbit as potential, with out reserving and propellant on the primary stage for touchdown maneuvers.

A couple of miles north of pad 40, SpaceX meant to launch a Falcon 9 rocket earlier Tuesday to start a cargo resupply mission to the Worldwide House Station. However unhealthy climate prevented liftoff of that flight from Kennedy House Middle, delaying the mission till Saturday.

Eutelsat 10B deployed from the Falcon 9 rocket’s higher stage about 35 minutes after launch. The rocket aimed to launch the spacecraft right into a “tremendous synchronous” switch orbit with an apogee, or farthest level from Earth, effectively above Eutelsat 10B’s last working altitude of twenty-two,000 miles (almost 36,000 kilometers). The goal apogee for the Eutelsat 10B mission at spacecraft deployment was above 37,000 miles, or about 60,000 kilometers, in keeping with Pascal Homsy, Eutelsat’s chief technical officer.

As an alternative of reserving a few of its propellant for touchdown on a drone ship, the Falcon 9’s first stage booster burned its 9 most important engines just a few seconds longer than typical, giving an additional burst of velocity to the rocket’s higher stage. That allowed the Falcon 9’s second stage engine to put the Eutelsat 10B satellite tv for pc into the next orbit than would have in any other case been potential.

SpaceX nonetheless deliberate to retrieve the 2 halves of the Falcon 9 rocket’s payload fairing for refurbishment and reuse.

Artist’s idea of the Eutelsat 10B satellite tv for pc with its antennas and photo voltaic arrays deployed in orbit. Credit score: Thales Alenia House

A spokesperson for Thales Alenia House, the producer of Eutelsat 10B, mentioned the deployment of the satellite tv for pc into an excellent synchronous switch orbit will shorten the time wanted for it to succeed in its last operational geostationary orbit by about 10 days. Based mostly on Thales’ Spacebus Neo satellite tv for pc platform, Eutelsat 10B will use plasma thrusters for the orbit changes wanted to circularize its orbit at geostationary altitude 22,000 miles over the equator, the place it would circle Earth in lock-step with the planet’s rotation.

Eutelsat 10B’s complete launch mass is about 5.5 metric tons, or roughly 12,000 kilos, a Thales spokesperson advised Spaceflight Now on Monday.

The expendable Falcon 9 mission marked the third time this month that SpaceX has disposed of a Falcon rocket booster, following the intentional disposals of a core stage on a Falcon Heavy rocket Nov. 1 and a Falcon 9 booster on a mission Nov. 12. The Nov. 12 mission lofted two communications satellites for Intelsat, which mentioned it paid a premium for the additional efficiency from the Falcon 9, ensuing within the booster’s disposal within the Atlantic Ocean.

“The explanation why Eutelsat select an expendable booster for this mission is due to the mass of the satellite tv for pc, which requires the total capability of gas and further efficiency of the Falcon 9 rocket and a correct orbit injection,” Homsy advised Spaceflight Now in response to written questions.

Homsy declined to say how a lot, if something, Eutelsat paid SpaceX for the extra efficiency from the Falcon 9 on the Eutelsat 10B mission.

As soon as in geostationary orbit subsequent 12 months, Eutelsat 10B will steer itself to an working place alongside the equator at 10 levels east longitude. The satellite tv for pc will add capability for web connectivity companies for airplanes and ships throughout the highly-trafficked North Atlantic hall between Europe and North America. Eutelsat 10B may also present comparable companies over Europe, the Mediterranean basin, and the Center East, in keeping with Eutelsat, the satellites Paris-based proprietor and operator.

Eutelsat 10B carries two multi-beam high-throughout Ku-band payloads for aviation and maritime web companies. These two payloads have 116 spot beams able to processing greater than 50 GHz of bandwidth, and providing a all through of roughly 35 gigabits per second, Eutelsat mentioned.

The satellite tv for pc additionally hosts two huge beam C-band and Ku-band payloads to increase companies at present offered by the growing old Eutelsat 10A satellite tv for pc, which launched in 2009.

Eutelsat 10B is scheduled to enter service in the summertime of 2023, Homsy mentioned.

The Eutelsat 10B communications satellite tv for pc inside an antenna take a look at vary at Thales Alenia House in Cannes, France. Credit score: Eutelsat

The launch of Eutelsat 10B additionally marked the fourth giant Eutelsat communications satellite tv for pc to launch within the final two-and-a-half months, starting with the Eutelsat Konnect VHTS satellite tv for pc which launched in September on an Ariane 5 rocket. Two Hotbird TV broadcasting satellites joined Eutelsat’s fleet after launches from Florida on Falcon 9 rockets in October and earlier this month.

“Fairly a problem for the Eutelsat engineering groups, who’ve been as much as the problem,” Homsy mentioned.

Throughout Tuesday night time’s countdown, the Falcon 9 launcher was crammed with one million kilos of kerosene and liquid oxygen propellants within the last 35 minutes earlier than liftoff.

After groups verified technical and climate parameters had been all “inexperienced” for launch, the 9 Merlin 1D most important engines on the primary stage booster flashed to life with the assistance of an ignition fluid known as triethylaluminum/triethylborane, or TEA-TEB. As soon as the engines ramped as much as full throttle, hydraulic clamps opened to launch the Falcon 9 for its climb into area.

The 9 most important engines produced 1.7 million kilos of thrust for greater than two-and-a-half minutes, propelling the Falcon 9 and Eutelsat 10B into the higher environment. Then the booster stage shut down and separated from the Falcon 9’s higher stage to start an uncontrolled fall into the Atlantic.

The booster was not fitted with SpaceX’s restoration {hardware}, reminiscent of titanium grid fins or touchdown legs. And SpaceX didn’t deploy considered one of its drone ships for the expendable mission.

A SpaceX restoration ship was on station to get well the Falcon 9 rocket’s payload fairing after the nostril cone’s two clamshell halves parachuted into the ocean downrange from Cape Canaveral. The payload fairing jettisoned from the rocket about three-and-a-half minutes into the flight, shortly after ignition of the Falcon 9’s higher stage engine.

The Falcon 9 rocket fired its higher stage engine two instances to inject the Eutelsat 10B spacecraft into an elliptical tremendous synchronous switch orbit, then the satellite tv for pc deployed from the rocket. Eutelsat 10B will unfurl its photo voltaic panels and start maneuvers with an on-board electrical propulsion system to circularize its orbit at geostationary altitude round 22,000 miles over the equator.

ROCKET: Falcon 9 (B1049.11)

PAYLOAD: Eutelsat 10B communications satellite tv for pc

LAUNCH SITE: SLC-40, Cape Canaveral House Power Station, Florida

LAUNCH DATE: Nov 22, 2022

LAUNCH TIME: 9:57 p.m. EST (0257 GMT on Nov. 23)

WEATHER FORECAST: 10% chance of acceptable climate

BOOSTER RECOVERY: None

LAUNCH AZIMUTH: East

TARGET ORBIT: Tremendous synchronous switch orbit

LAUNCH TIMELINE:

    • T+00:00: Raise off
    • T+01:16: Most aerodynamic stress (Max-Q)
    • T+02:43: First stage most important engine cutoff (MECO)
    • T+02:47: Stage separation
    • T+02:54: Second stage engine ignition
    • T+03:36: Fairing jettison
    • T+08:05: Second stage engine cutoff (DRY 1)
    • T+26:18: Second stage engine restart
    • T+27:27: Second stage engine cutoff (SECO 2)
    • T+35:28: Eutelsat 10B separation

MISSION STATS:

  • 186th launch of a Falcon 9 rocket since 2010
  • 195th launch of Falcon rocket household since 2006
  • eleventh launch of Falcon 9 booster B1049
  • 159th Falcon 9 launches from Florida’s House Coast
  • 104th Falcon 9 launches from pad 40
  • 159th launch general from pad 40
  • 127th flight of a reused Falcon 9 booster
  • fifth SpaceX launch for Eutelsat
  • 52nd Falcon 9 launch of 2022
  • 53rd launch by SpaceX in 2022
  • 51st orbital launch try primarily based out of Cape Canaveral in 2022

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Comply with Stephen Clark on Twitter: @StephenClark1.

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