December 1, 2022

Reside protection of the countdown and launch of a SpaceX Falcon 9 rocket from House Launch Complicated 40 at Cape Canaveral House Pressure Station, Florida. The Falcon 9 rocket will launch the Eutelsat 10B broadband communications satellite tv for pc for aviation and maritime connectivity. Observe us on Twitter.

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SpaceX’s oldest energetic Falcon 9 rocket booster, in service since 2018, is scheduled to make its closing flight Tuesday night time to ship a Eutelsat broadband communications satellite tv for pc into orbit on a mission to offer web providers to airplanes and ships throughout the North Atlantic, Europe, the Center East, and Africa. The mission will full a collection of 4 main satellite tv for pc launches for Eutelsat since early September.

The Eutelsat 10B satellite tv for pc is ready to carry off on high of a Falcon 9 rocket at 9:57 p.m. EST Tuesday (0257 GMT Wednesday) from pad 40 at Cape Canaveral House Pressure 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 “permit for extra pre-flight checkouts,” SpaceX mentioned.

SpaceX gained’t get better the primary stage of the 229-foot-tall (70-meter) Falcon 9 rocket. The launch firm has 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 doable, with out reserving and propellant on the primary stage for touchdown maneuvers.

There’s only a 20% chance of favorable climate for launch Tuesday night time, in keeping with the official outlook from the U.S. House Pressure’s forty fifth Climate Squadron.

A couple of miles north of pad 40, SpaceX is readying a distinct Falcon 9 rocket for launch Tuesday from Kennedy House Middle on a resupply mission to the Worldwide House Station. The climate forecast for that launch, set for 3:54 p.m. EST (2054 GMT) Tuesday, can be iffy with a 30% probability of acceptable situations for liftoff.

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

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As a substitute of reserving a few of its propellant for touchdown on a drone ship, the Falcon 9’s first stage booster will burn its 9 essential engines a couple of seconds longer than ordinary, giving an additional burst of pace to the rocket’s higher stage. That can permit 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 doable.

SpaceX nonetheless plans 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 a brilliant synchronous switch orbit will shorten the time wanted for it to achieve its closing 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’s going to 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 would be 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 complete capability of gasoline and further efficiency of the Falcon 9 rocket and a correct orbit injection,” Homsy advised Spaceflight Now in response to written questions.

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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 yr, 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 providers for airplanes and ships throughout the highly-trafficked North Atlantic hall between Europe and North America. Eutelsat 10B can even present related providers 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 providers. 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 providers at the moment supplied 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 check vary at Thales Alenia House in Cannes, France. Credit score: Eutelsat
The launch of Eutelsat 10B marks 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 might be crammed with 1,000,000 kilos of kerosene and liquid oxygen propellants within the closing 35 minutes earlier than liftoff.

Assuming groups confirm technical and climate parameters are all “inexperienced” for launch, the 9 Merlin 1D essential engines on the primary stage booster will flash to life with the assistance of an ignition fluid known as triethylaluminum/triethylborane, or TEA-TEB. As soon as the engines ramp as much as full throttle, hydraulic clamps will open to launch the Falcon 9 for its climb into area.

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The 9 essential engines will produce 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 will shut down and separate from the Falcon 9’s higher stage to start an uncontrolled fall into the Atlantic.

The booster shouldn’t be fitted with SpaceX’s restoration {hardware}, corresponding to titanium grid fins or touchdown legs. And SpaceX didn’t deploy one in all its drone ships for the expendable mission.

SpaceX is anticipated to try to get better the Falcon 9 rocket’s payload fairing after the nostril cone’s two clamshell halves parachute into the ocean downrange from Cape Canaveral. The payload fairing will jettison 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 will hearth 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 will deploy 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 Pressure Station, Florida

LAUNCH DATE: Nov. 22, 2022

LAUNCH TIME: 9:57 p.m. EST (0257 GMT)

WEATHER FORECAST: 20% chance of acceptable climate



TARGET ORBIT: Tremendous synchronous switch orbit


T+00:00: Liftoff
T+01:16: Most aerodynamic strain (Max-Q)
T+02:43: First stage essential 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 (SECO 1)
T+26:18: Second stage engine restart
T+27:27: Second stage engine cutoff (SECO 2)
T+35:28: Eutelsat 10B separation


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 launch from Florida’s House Coast
104th Falcon 9 launch from pad 40
159th launch total 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 based mostly out of Cape Canaveral in 2022

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Observe Stephen Clark on Twitter: @StephenClark1.

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