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SpaceX Starlink satellite constellation aims to become world’s largest after next launch

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In a sign of things to come next year, SpaceX’s next – and third – 60-satellite Starlink launch is officially on the books, and – if all goes as planned – could make the company the proud owner of the world’s largest operational satellite constellation.

On May 24th, Falcon 9 lifted off for the first time ever on a dedicated Starlink launch, placing 60 ‘v0.9’ prototype satellites in Low Earth Orbit (LEO), where they deployed solar arrays and fired up their own electric krypton thrusters to reach their operational ~550 km (340 mi) orbits. Of those 60 prototypes, several were intentionally deorbited while another handful suffered unintended failures, while 51 (85%) ultimately reached that final orbit and began operations.

A stack of 60 Starlink v0.9 satellites are prepared for their orbital launch debut in May 2019. (SpaceX)
60 v0.9 Starlink satellites ahead of their May 2019 debut. (SpaceX)

Previously expected in mid-October, unspecified delays pushed SpaceX’s next Starlink launch – deemed Starlink-1, the first launch of ‘v1.0’ satellites – into November. On November 11th, Falcon 9 B1048 and a flight-proven payload fairing lifted off with 60 more Starlink satellites, also marking the first time a Falcon 9 booster completed four orbital launches and the first operational reuse of a recovered fairing. Upgraded with four times the overall bandwidth, improved structures, new Ka-band antennas, and more steerable ‘beams’ on each of those antennas, those 60 Starlink v1.0 satellites rapidly came online and began raising their orbits.

This time around, SpaceX received FCC approval to test satellites at a substantially lower altitude of ~350 km (220 mi) and launched to a parking orbit of just 280 km (175 mi), ensuring that any debris or failed spacecraft will reenter Earth’s atmosphere in just a matter of months while also completely avoiding added risk to the International Space Station (ISS) (~400 km). After a brisk ten or so days of active propulsion, 55 of those 60 satellites have raised their orbits to ~350 km, while ~20 of those 55 appear to be aiming for a final altitude somewhat higher, likely the start of a separate orbital plane.

SpaceX’s 60 Starlink-1 satellites as of November 24th.
60 Starlink v1.0 satellites prepare for flight in November 2019. (SpaceX)

The moment that Starlink-1 satellites began to arrive and stabilize at their 350-km operational orbits, nearly all of SpaceX’s 50 operational v0.9 satellites began lowering their orbits, potentially signaling a move down to Starlink-1’s operational altitude, or even an intentional deorbit of the entire prototype tranche (far less likely).

From nothing to #1

The same day that several dozen Starlink-1 satellites finished the climb up to their operational orbits, SpaceX announced media accreditation for its next Starlink launch, presumed to be Starlink-2. According to SpaceX, the mission is targeted for the last two weeks of December 2019, a schedule that will tighten as it gets closer. Previously expected to launch in early November, as few as two weeks after Starlink-1, Starlink-2 has suffered similar delays but still appears to be on track for 2019.

SpaceX breaks over record-breaking Falcon 9 booster B1048.4, the last step before transport to a nearby hangar for inspection and refurbishment. The booster’s fifth launch could very well be Starlink-2. (Richard Angle)

It’s assumed that Starlink-2 – like both dedicated missions preceding it – will launch 60 Starlink satellites. If that is, in fact, the case, the mission could mark a surprising but fully-expected milestone: with >170 functional satellites in orbit, SpaceX might become the proud owner of the world’s largest operational satellite constellation. Excluding two Tintin prototypes launched in February 2018 and 8 failed Starlink v0.9 spacecraft, a perfect Starlink-2 launch would raise SpaceX’s operational constellation to 172 satellites.

The only satellite operator anywhere close to those numbers is Planet Labs, an Earth observation analytics and satellite production company that has launched >400 satellites in its lifetime. Of those ~400 spacecraft, it’s believed that ~150 were operational as of October 2019 and Planet has another 12 Dove observation satellites scheduled to launch on November 27th. In simple terms, this means that SpaceX may become the world’s largest satellite operator after Starlink-2 and it all but guarantees that that will be the case after Starlink-3, a mission that will likely follow just weeks later.

Seven generations of Planet Lab’s workhorse Dove satellites, each capable of serving up dozens of gigabytes of 3m/px-imagery daily. (Planet Labs)
An artist’s impression of SpaceX’s Starlink constellation in orbit. (SpaceX – Teslarati)

Once SpaceX passes that milestone, it’s all but guaranteed that Starlink will retain the title of world’s largest satellite constellation for the indefinite future. According to SpaceX COO and President Gwynne Shotwell, as many as 24 Starlink launches are planned for 2020, and SpaceX’s burgeoning Washington-state satellite factory may soon be capable of supporting the unprecedented volume of production such a cadence will require. Even assuming rocky development, it’s hard to picture SpaceX’s next-generation Starship rocket taking more than two additional years to be ready for routine orbital missions to LEO, each of which should be able to place 400 Starlink satellites in orbit.

OneWeb is by far the closest thing SpaceX has to a serious Starlink competitor and its first operational launch of ~30 satellites has recently suffered delays, moving from December to late-January or February 2020. Roughly monthly launches (each with ~30 satellites) will nominally follow that first launch. After Starlink-2 or Starlink-3, the only conceivable ways that SpaceX could ever lose the title of world’s largest satellite operator would require catastrophic failure(s) grounding Falcon 9 and/or Starship for >1 year or outright bankruptcy and liquidation, neither of which seem particularly likely.

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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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Elon Musk

Why Tesla Roadster unveiling delay might have nothing to do with it flying

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tesla roadster elon musk flying
Credit: Grok

Tesla announced on Monday that the Roadster event scheduled for today would be postponed due to the need for it to be held outside.

Less than 24 hours later, CEO Elon Musk broadened that by stating it was due to high winds, immediately sending everyone into a frenzy over the Roadster’s potential ability to fly.

And realistically, it could definitely have to do with it flying, hovering, or hopping; whatever Tesla has in mind for this demonstration could not be impacted by wind. However, it might have nothing to do with the vehicle flying whatsoever, and instead could be a simple precaution, as the Roadster is a very unique vehicle with some already official specs that are just mind-blowing.

Tesla will very, very likely be showcasing both the acceleration rate and potentially even a top speed demo at the event in Waco. Both of these demonstrations, performed with a vehicle that has such incredibly fast metrics, could easily be impacted by wind as well.

Tesla Roadster event requires restricted airspace, and the FAA obliges

Top Speed Demo

At high speeds, aerodynamic forces are already overwhelmingly present. A crosswind or sudden gust adds a layer of sideways force that the tires must counter with slip angle. On a short demo course, that force can shove the car off the intended line, especially in a light car with a low frontal area and little mass to resist the push.

Electric cars, due to their battery packs, have an advantage of an extremely low center of gravity, giving them extra stability. However, the speeds at which the Roadster could travel at the demo could spell some issues if crosswinds are present.

Gusts are worse than a steady wind because the load changes faster than a driver can smoothly correct. That shows up as weaving or a late correction. Headwinds and tailwinds can also spell disaster. Headwinds cut a measured top speed but raise the power needed to get there or maintain it. Meanwhile, a tailwind can inflate the top speed, and downforce issues could become more noticeable.

Wind also loads the body unevenly. A low car can feel light on the upwind side or see a sudden change in downforce if the gust hits a wing or diffuser at an angle. Tire temperature and pressure might stay near a normal level, but lateral grip can be lost as the vehicle is spent fighting the wind.

Acceleration Demo

Launch and 0-60 MPH runs are shorter, so the car spends less time exposed to forces that could cause things to go awry. However, the first second is very sensitive, as a crosswind at launch could yaw the car before speed builds and prior to aerodynamic impact being too great. The driver will be required to correct traction control or manage how much the wheels are spinning, which will likely be corrected automatically by some sort of traction control system within the Roadster (we are fairly certain Tesla will implement something brilliant with it).

These things could cause an unstable run.

A headwind would increase drag as speed rises, while a tailwind would do the opposite. Meanwhile, surface effects, like wind-driven dust, light debris, or even rain, could reduce grip at the exact moment the tires are asked for peak longitudinal force. Standing water plus a crosswind is a common reason an acceleration attempt might be scrapped.

Flying or Not

No matter what Tesla has in store for the Roadster, waiting for ideal conditions is a great idea. People who follow and support the company, along with the engineers involved in the Roadster program, have been waiting nine years since the last unveiling for this moment. Everything should be ideal.

Some speculate that it’s just not ready, and that’s ridiculous. Why would Tesla even schedule the event — albeit prematurely — after nine years if it was not ready? Why would they jump the gun now?

We were all excited for today, but it truly is the most ideal thing in the world to wait two more weeks so everything, including the weather, can be perfect. The delay is simply worth it. But Tesla, seriously, make this the last one.

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Elon Musk

SpaceX nails “Lucky 13” astronaut launch, leaning into Tesla tradition and superstition

SpaceX launched Crew-13 astronauts to the ISS Thursday, setting up a record fast Dragon docking.

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Crew Dragon sits atop Falcon 9 at sunrise on Cape Canaveral's pad 40, less than a day before four astronauts are set to launch to the ISS. (Credit: SpaceX)

SpaceX launched NASA’s Crew-13 mission to the International Space Station on Thursday morning, getting four astronauts to orbit despite a forecast of thunderstorms and gusty winds that had threatened to push the flight to Friday.

Falcon 9 lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station at 11:10 a.m. ET carrying Dragon Grace, NASA confirmed. On board are NASA commander Jessica Watkins, NASA pilot Luke Delaney, Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov. The first stage booster, B1101, landed at Landing Zone 40 beside the pad on its third flight after previously supporting Crew-12 and a Starlink mission.

It was the first spaceflight for Delaney, Kutryk and Teteryatnikov. Watkins, who flew on Crew-4 in 2022, became the first NASA astronaut to launch aboard a Crew Dragon twice.

Before launch, the crew rode to the pad in Teslas, a tradition on NASA’s SpaceX crew flights since 2020. This time the cars carried specialty plates reading “Lucky 13.” Watkins said the mission patch leans into the number on purpose, as a nod to Apollo 13 and the resilience of that crew.

Grace is now on a short trip to the station. Docking at the forward port of the Harmony module is scheduled for about 7 p.m. ET, roughly 7 hours and 50 minutes after liftoff, which Space.com notes would be the fastest Crew Dragon transit to the ISS yet. Most Dragon flights take around 15 to 24 hours to catch the station. Hatch opening is planned for 8:25 p.m. ET.

The launch came more than two weeks later than originally planned. An oxidizer leak was found in Grace’s propulsion system in August, and NASA and SpaceX added time for tests. That pushed back the return of Crew-12, which has been aboard the station since February and is now set to splash down off Southern California next week. Crew-13 is expected to stay about six months.

SpaceX rescue mission for stranded ISS astronauts nears end — Here’s when they’ll return home

SpaceX already holds NASA orders for crew rotations through Crew-17, while Boeing is preparing an uncrewed Starliner flight to the station as early as December.

Crew-13 was only the first of three SpaceX launches planned for Thursday, as Teslarati previewed on Wednesday. A Falcon 9 launched its Transporter-18 mission from California today, where Google will be launching its first orbital artificial intelligence (AI) test satellite. Meanwhile, Falcon Heavy is set to launch the classified NROL-97 mission for the National Reconnaissance Office from Launch Complex 39A at 11:53 p.m. ET. Its two side boosters will return to Landing Zones 1 and 2, which means Central Florida could hear up to three sonic booms in a single day. The busy stretch follows Starship’s Flight 14 on Monday, which reached orbit for the first time.

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Tesla moves forward on Wireless Charging for vehicles

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Credit: Tesla | X

Tesla has moved its Wireless Charging efforts for its electric vehicles forward, as it had a new patent published today, one that it submitted back in March.

The patent describes a system for detecting foreign objects on the wireless charging pad under varying temperatures, aiming to mitigate any undesired results that could come from something being on top of the charging pad.

The abstract of the patent states:

“The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”

The object detection system will utilize a set of inductive coils included in resonant tanks, and “excite the resonant tank using signals in a range of frequencies including or near a nominal resonant frequency of the tanks.” Metal can be detected by an increase in the coil’s resistance and a decrease in the coil’s inductance.

By analyzing shifts or disruptions in resonant frequencies and output magnitudes, the system can detect foreign objects. These types of safeguards need to be implemented through the normal operation of the charging pads.

Tesla says its Cybercab wireless charging efficiency is ‘well above 90%’

Tesla plans to utilize wireless charging with Cybercab and Robotaxi-enabled units to help streamline the fully autonomous experience from A to Z. The last thing the company wants to do is have any sort of small obstruction preventing the rider from experiencing Robotaxi as intended.

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