SpaceX launches

Didn’t someone shoot themselves in the foot with an eerily similar concept a while back?

I suppose it might just work this time.

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New technology!

If you read Arthur C Clarke he predicted a lot of this about 70 years ago.

Jules Verne predicted a lot more than this.

RADARSAT Constellation Mission

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Nice start and booster landing in fog. Total mission success.

Payloads

Name Type Operator Orbit Mass Mission
Internal Cargo Resupply NASA ISS LEO (≈400 x ≈400 km, 51.66°) 1691.3 kg Deliver supplies, equipment and experiments to support ISS science and operations.
IDA-3 ISS Assembly NASA ISS LEO (≈400 x ≈400 km, 51.66°) 529.9 kg Allow present and future crewed and robotic spacecraft, including SpaceX’s Dragon 2, Boeing’s CST-100 Starliner, and Sierra Nevada’s Dream Chaser, to dock with the station.
RFTSat 1 Technology Demo Nazarene U LEO (Approx 400 x 400 km, 51.7°) 5.5 kg Demonstrate deploying small, wireless sensor tags that harvest RF energy and communicate with the mother craft via backscatter radio.
MakerSat-1 Technology Demo Nazarene U LEO (Slightly above ≈400 x ≈400 km, ≈51.7°) 1 kg Demonstrate microgravity additive manufacturing, assembly and deployment of a cubesat. Will be assembled in orbit and released by a Cygnus dispenser later in July.


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AMOS-17 MISSION

SpaceX’s 10th mission of the year was the first with no planned landing, carrying the AMOS-17 satellite to GTO. This mission is provided by SpaceX to Spacecom for free due to the AMOS-6 static fire failure, which destroyed the satellite and precluded the launch. This mission was launched from SLC-40 at Cape Canaveral AFS on a Falcon 9, and the first-stage booster was expended.

This was SpaceX’s tenth mission of 2019, the third GTO launch of the year and the seventy-fourth Falcon 9 launch overall. It re-used the Block 5 booster flown on the Telstar 19V and Es’hail 2 missions for its final flight.

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Overview

For this launch SpaceX will attempt it’s second untethered hop of the prototype launch vehicle colloquially known as Starhopper from their Boca Chica facility in Texas. The vehicle is expected to ascend using it’s single Raptor engine to an altitude of 200m 150m before performing a controlled landing. The primary aim of the mission is to test the flight dynamics of both the vehicle and the Raptor engine to better inform decisions concerning their next generation launch vehicle Starship. The vehicle has also been outfitted with a sample of hexagonal TPS (thermal protection system) tiles, whilst this flight will not approach the alititudes and velocities needed to test their thermal properties during re-entry, it does offer an opportunity to subject the tiles to some rigorous shaking to check that they wont fall off. Previously, Starhopper performed a short tethered hop and a 20m untethered hop - this will be the final flight for the vehicle before it is retired and superseded by the Mk.1 and Mk.2 orbital prototype Starships under construction in Boca Chica (Tx.) and Cocoa (Fl.).

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