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SpaceX Falcon Heavy rocket rolls to pad for Tuesday launch, dual booster landing

A Falcon Heavy rocket has rolled out to the launch pad - to launch - for the first time since June 2019. (Richard Angle)

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A SpaceX Falcon Heavy rocket has rolled out to Kennedy Space Center Pad 39A for its first launch (and dual booster landing) in almost three and a half years.

Missing its payload fairing and the US Space Force’s classified USSF-44 payload, SpaceX’s fourth Falcon Heavy rocket rolled out to Pad 39A for the first time on October 25th. On the 27th, the rocket successfully fired up all 27 of its first-stage Merlin 1D engines, reasserting its status as the most powerful operational rocket in the world. On October 30th, SpaceX finally brought Falcon Heavy horizontal and rolled the rocket back to Pad 39A’s integration hangar, where the USSF-44 mission’s several payloads – safely stowed inside a payload fairing – were installed on the rocket.

24 hours later, Falcon Heavy – now fully assembled – departed the hangar again. According to the US Space Systems Command (SSC), despite the exceptionally late rollout on October 31st, SpaceX is on track to launch Falcon Heavy no earlier than (NET) 9:41 am EDT (13:41 UTC) on Tuesday, November 1st.

As previously discussed on Teslarati, USSF-44 will be SpaceX’s first attempt at a direct launch to a geostationary orbit (GEO) some ~36,000 kilometers (~22,400 mi) above Earth’s surface, where spacecraft can hover motionless over their region of choice. To accomplish that feat, Falcon Heavy’s upper stage will need to survive a roughly six-hour coast in the harsh vacuum of space, likely making USSF-44 one of the most challenging missions SpaceX has ever attempted.

Long orbital coasts of six or so hours are necessary for some of the most challenging launch trajectories. Direct-to-geostationary launches are the most common mission requiring long coast capabilities and are often demanded by the US military. When Falcon’s upper stage gets too cold, its kerosene fuel – which freezes at a much higher temperature than Falcon’s liquid oxygen oxidizer – becomes viscous and slush-like before it becomes solid. If ingested in Falcon’s Merlin Vacuum engine, slushy fuel would likely prevent ignition or outright destroy it.

Teslarati.com – October 10th, 2022

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Simultaneously, while worrying about kerosene fuel getting too cold, SpaceX must also ensure that the Falcon upper stage’s cryogenic liquid oxygen (LOx) oxidizer doesn’t boil into gas. If too much LOx warms up and has to be vented out as it turns to gas, the Falcon upper stage could find itself without enough propellant to complete its geostationary orbit circularization burn.

LOx is far less stable, which makes it a bit ironic that the upper stage’s fuel tank bares the only visible sign of the tweaks needed to survive a long coast. To keep the RP1 fuel warmer in orbit, SpaceX has added a layer of grey paint to the RP1 tank, increasing the amount of heat that can be absorbed through unfiltered sunlight. The uninsulated LOx tank, meanwhile, benefits from the unintuitive fact that a cryogenic liquid can stay liquid for a surprisingly long time because some of it warms up and boils off as a gas, sacrificing a small quantity to keep the rest cool.

A look inside the LOx tank of a Falcon 9 upper stage while in orbit. (SpaceX)

According to the US Space Force, USSF-44 will carry several “various payloads” attached to the second Northrop Grumman “Long Duration Propulsive EELV (Evolved Expendable Launch Vehicle) Secondary Payload Adapter” or LDPE-2 – essentially a long-duration kick stage. Cataloged on EverydayAstronaut.com, the payloads include two Lockheed Martin LINUSS-A cubesats that will demonstrate a handful of new technologies and capabilities; TETRA-1, a microsat built by Millenium Space Systems to test on-orbit maneuverability; and a communications satellite prototype called USUVL. Spaceflight Now reports that LPDE-2 will carry three hosted payloads and deploy three satellites.

Finally, a recent Space Systems Command press release [PDF] mentioned a mysterious “Shepard demonstration” – likely a second propulsive kick stage – for the first time, which almost nothing is known about. It’s unclear if there is a main classified satellite the mission revolves around or if USSF-44 is simply a collection of various rideshare payloads headed to GEO.

Regardless, to launch them directly into geostationary orbit, USSF-44 will mark the first time SpaceX intentionally expends a Falcon Heavy booster. Over three previous launches, SpaceX only managed to land a Falcon Heavy center core once, but that core then tipped over and was destroyed at sea. Two other attempts resulted in failed landings. USSF-44 will continue that trend. Falcon Heavy’s twin side boosters will attempt to continue a more positive trend of simultaneous side-by-side landings and boost back to Florida to touch down at SpaceX’s LZ-1 and LZ-2 pads. SpaceX will also attempt to recover both halves of Falcon Heavy’s payload fairing a record-breaking 1410 kilometers (876 mi) off the Florida coast.

SpaceX says weather is 90% favorable for Falcon Heavy’s November 1st launch attempt. Stay tuned for a link to the company’s official webcast.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla adds new feature that will be great for crowded parking situations

This is the most recent iteration of the app and was priming owners for the slowly-released Holiday Update.

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Credit: Grok

Tesla has added a new feature that will be great for crowded parking lots, congested parking garages, or other confusing times when you cannot seem to pinpoint where your car went.

Tesla has added a new Vehicle Locator feature to the Tesla App with App Update v4.51.5.

This is the most recent iteration of the app and was priming owners for the slowly-released Holiday Update.

While there are several new features, which we will reveal later in this article, perhaps one of the coolest is that of the Vehicle Locator, which will now point you in the direction of your car using a directional arrow on the home screen. This is similar to what Apple uses to find devices:

In real time, the arrow gives an accurate depiction of which direction you should walk in to find your car. This seems extremely helpful in large parking lots or unfamiliar shopping centers.

Getting to your car after a sporting event is an event all in itself; this feature will undoubtedly help with it:

Tesla’s previous app versions revealed the address at which you could locate your car, which was great if you parked on the street in a city setting. It was also possible to use the map within the app to locate your car.

However, this new feature gives a more definitive location for your car and helps with the navigation to it, instead of potentially walking randomly.

It also reveals the distance you are from your car, which is a big plus.

Along with this new addition, Tesla added Photobooth features, Dog Mode Live Activity, Custom Wraps and Tints for Colorizer, and Dashcam Clip details.

All in all, this App update was pretty robust.

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Tesla CEO Elon Musk shades Waymo: ‘Never really had a chance’

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Credit: Tesla

Tesla CEO Elon Musk shaded Waymo in a post on X on Wednesday, stating the company “never really had a chance” and that it “will be obvious in hindsight.”

Tesla and Waymo are the two primary contributors to the self-driving efforts in the United States, with both operating driverless ride-hailing services in the country. Tesla does have a Safety Monitor present in its vehicles in Austin, Texas, and someone in the driver’s seat in its Bay Area operation.

Musk says the Austin operation will be completely void of any Safety Monitors by the end of the year.

With the two companies being the main members of the driverless movement in the U.S., there is certainly a rivalry. The two have sparred back and forth with their geofences, or service areas, in both Austin and the Bay Area.

While that is a metric for comparison now, ultimately, it will not matter in the coming years, as the two companies will likely operate in a similar fashion.

Waymo has geared its business toward larger cities, and Tesla has said that its self-driving efforts will expand to every single one of its vehicles in any location globally. This is where the true difference between the two lies, along with the fact that Tesla uses its own vehicles, while Waymo has several models in its lineup from different manufacturers.

The two also have different ideas on how to solve self-driving, as Tesla uses a vision-only approach. Waymo relies on several things, including LiDAR, which Musk once called “a fool’s errand.”

This is where Tesla sets itself apart from the competition, and Musk highlighted the company’s position against Waymo.

Jeff Dean, the Chief Scientist for Google DeepMind, said on X:

“I don’t think Tesla has anywhere near the volume of rider-only autonomous miles that Waymo has (96M for Waymo, as of today). The safety data is quite compelling for Waymo, as well.”

Musk replied:

“Waymo never really had a chance against Tesla. This will be obvious in hindsight.”

Tesla stands to have a much larger fleet of vehicles in the coming years if it chooses to activate Robotaxi services with all passenger vehicles. A simple Over-the-Air update will activate this capability, while Waymo would likely be confined to the vehicles it commissions as Robotaxis.

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Tesla supplier Samsung preps for AI5 production with latest move

According to a new report from Sedaily, Samsung is accelerating its preparation for U.S. production of the AI5 chips by hiring veteran engineers for its Customer Engineering team.

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Credit: Tesla

Tesla supplier Samsung is preparing to manufacture the AI5 chip, which will launch the company’s self-driving efforts even further, with its latest move.

According to a new report from Sedaily, Samsung is accelerating its preparation for U.S. production of the AI5 chips by hiring veteran engineers for its Customer Engineering team, which will help resolve complex foundry challenges, stabilize production and yields, and ensure manufacturing goes smoothly for the new project.

The hiring push signals that Tesla’s AI5 project is moving forward quickly at Samsung, which was one of two suppliers to win a contract order from the world’s leading EV maker.

TSMC is the other. TSMC is using its 3nm process, reportedly, while Samsung will do a 2nm as a litmus test for the process.

The different versions are due to the fact that “they translate designs to physical form differently,” CEO Elon Musk said recently. The goal is for the two to operate identically, obviously, which is a challenge.

Some might remember Apple’s A9 “Chipgate” saga, which found that the chips differed in performance because of different manufacturers.

The AI5 chip is Tesla’s next-generation hardware chip for its self-driving program, but it will also contribute to the Optimus program and other AI-driven features in both vehicles and other projects. Currently, Tesla utilizes AI4, formerly known as HW4 or Hardware 4, in its vehicles.

Tesla teases new AI5 chip that will revolutionize self-driving

AI5 is specialized for use by Tesla as it will work in conjunction with the company’s Neural Networks, focusing on real-time inference to make safe and logical decisions during operation.

Musk said it was an “amazing design” and an “immense jump” from Tesla’s current AI4 chip. It will be roughly 40 times faster, and have 8 times the raw compute, with 9 times the memory capacity. It is also expected to be three times as efficient per watt as AI4.

AI5 will make its way into “maybe a small number of units” next year, Musk confirmed. However, it will not make its way to high-volume production until 2027. AI5 is not the last step, either, as Musk has already confirmed AI6 would likely enter production in mid-2028.

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