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posted by Fnord666 on Saturday May 21 2022, @11:36PM   Printer-friendly
from the breaking-records-and-8-track-tapes dept.

SpaceX Falcon Heavy rocket to launch record-breaking communications satellite

A report on the latest in a long line of SpaceX launches significantly delayed by customer payload readiness has been updated to confirm that the satellite in question will launch on Falcon Heavy, not Falcon 9.

Woo Hoo! I've been waiting to see another Falcon Heavy launch!

Hughes revealed that it had selected SpaceX to launch its Maxar-built Jupiter-3 geostationary communications satellite during an industry conference on March 21st, 2022. [....] Just six weeks later, manufacturer Maxar reported that the completion of Jupiter 3 – like many other Maxar spacecraft – had been delayed, pushing its launch to no earlier than (NET) "early 2023."

At the same time, Maxar revealed that Jupiter 3 – also known as Echostar 24 – was expected to weigh around 9.2 metric tons (~20,300 lb) at liftoff when that launch finally happens. That figure immediately raised some questions about which SpaceX rocket Hughes or Maxar had chosen to launch the immense satellite.

[....] At 9.2 tons, Jupiter 3 will leapfrog the world record for the largest commercial geostationary satellite ever launched by 30%. Barring the possibility of secret military spacecraft, it will likely be the heaviest spacecraft of any kind to reach geostationary orbit 35,785 km (22,236 miles) above Earth's surface.

[....] With its exceptional heft, a recoverable Falcon 9 launch may have only been able to loft Jupiter 3 around half the way to GTO from low Earth orbit (LEO). It was little surprise, then, to learn that Hughes and Maxar had actually selected SpaceX's far more capable Falcon Heavy rocket to launch the satellite. Even with full recovery of all three Falcon Heavy first-stage boosters, there's a good chance that the rocket would be able to launch Jupiter 3 most of or all the way to a nominal geostationary transfer orbit. If the center core is expended and the side boosters land at sea, Falcon Heavy would likely be able to launch Jupiter 3 to a highly supersynchronous GTO, meaning that the spacecraft's apogee would end up well above GEO.

[....] Falcon Heavy's Jupiter 3 mission won't beat the record for total payload to GTO in a single launch, held by Arianespace's Ariane 5 rocket after a 2021 mission to GTO launched two communications satellites weighing 10.27t, but it will be just one ton shy.

Looking at SpaceFlightNow.com's Launch Schedule it appears there will be several Falcon Heavy launches yet this year.


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  • (Score: 0) by Anonymous Coward on Tuesday May 24 2022, @07:23AM

    by Anonymous Coward on Tuesday May 24 2022, @07:23AM (#1247415)

    Boeing's Starliner orbiter only runs its engines in space. It launches on a kerosene fuelled rocket [wikipedia.org]. In that respect it is no different than SpaceX's Dragon orbiter.

    Automotive exhaust is a much bigger public health hazard and pollutant than hydrocarbon based rocket exhaust. IIRC the only country currently flying hydrazine rockets is China, and even they are phasing them out.