Elon Musk's Tesla Roadster

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Elon Musk's Tesla Roadster
Elon Musk's Tesla Roadster (40110297852).jpg
The Tesla Roadster with Earth in the background
Operator SpaceX
Manufacturer Tesla
Instrument type Inert mass</br>Broadcast device
Function Dummy payload
Website spacex.com
Properties
Mass ≈1,300 kg (2,900 lb)
Host Spacecraft
Launch date February 6, 2018
Rocket Falcon Heavy
Launch Site Kennedy LC-39A
COSPAR ID 2018-017A
Orbit Perihelion: 0.98 AU[1]
Aphelion: 1.67 AU
Inclination: 1.05°
Orbital period: 1.53 year

Entrepreneur Elon Musk's first generation Tesla Roadster is an Electric car that was selected by him as "something fun and without irreplaceable sentimental value" to be launched into space on the maiden demonstration flight of the Falcon Heavy rocket.[2][3] It was launched on February 6, 2018 as part of the dummy payload. The car and rocket were both manufactured by companies founded and directed by Musk: the car was built by Tesla while the rocket was built by SpaceX. Musk's Roadster is the first consumer car sent into space, it had previously been used by Musk to commute to work around Los Angeles.[3]

It was launched with sufficient velocity to escape the Earth and enter an elliptic orbit around the Sun that crosses the orbit of Mars, reaching an aphelion (maximum distance from the Sun) of 1.67 AU.[4] During the early portion of its voyage it functioned as a broadcast device, sending live video back to Earth for four hours.[5]

Objective

Elon Musk's Roadster on Earth

The purpose of including the Roadster on the maiden flight was to demonstrate that the Falcon Heavy can launch payloads as far as the orbit of Mars. Because of the risk involved with the launch of the new rocket, Musk stated that he intended to launch the "silliest thing we can imagine" on the new rocket. The exact payload was not known until the Roadster announcement.[6][7] Initially, there were conflicting reports whether the Roadster payload was fictitious, but Musk and many SpaceX employees later confirmed that the payload was legitimate.[8] On December 22, Musk published pictures of the car taken before payload encapsulation. The automobile was installed at an inclined position above the payload adapter in order to account for the mass distribution.[9]

A license for the launch was issued by the US Office of Commercial Space Transportation on February 2, 2018.[10]

This launcher demonstration makes the Roadster the first consumer car sent into space.[11] Three manned rovers were sent to space on the Apollo 15, 16, and 17 missions in the 1970s and these vehicles were left on the Moon.[12] The Roadster is one of two formerly manned vehicles (albeit not a manned space vehicle) derelict in solar orbit, joining LM-4 Snoopy, Apollo 10's lunar module ascent stage.[13][14]

Roadster payload

The first-generation Tesla Roadster is an all-electric Sports car. Tesla delivered approximately 2,450 Roadsters worldwide between February 2008 and December 2012. The midnight cherry Roadster launched into space is one of Elon Musk's privately owned vehicles.[15][16] Musk said in a 2012 interview that the Roadster was "the one I drive to work".[3]

The Roadster in space. "I like the absurdity of that." —Elon Musk[17]

A number of symbolic and whimsical objects were put in the Roadster. Positioned in the driver's seat is "Starman", a full-scale human dummy clad in SpaceX's pressure spacesuit.[18] He has his right hand on the steering wheel and left elbow resting on the open window sill. Starman is named for the David Bowie song "Starman".[19] The car's sound system was looping the Bowie songs "Space Oddity" and "Life on Mars?";[20] even though no human can hear sound in space,[21][22] the symbolism is palpable.[23]

There is a copy of Douglas Adams' 1979 novel The Hitchhiker's Guide to the Galaxy in the glovebox, along with a towel (a reference to the book) and a sign on the dashboard that reads "Don't Panic!" (another reference to the book).[24][25] The payload also includes a Hot Wheels miniature Roadster with a miniature Starman, a plaque bearing the names of the employees who worked on the project, a message on the vehicle's circuit board stating that it was "Made on Earth by humans",[26] and a copy of Isaac Asimov's Foundation series[27][28] on a laser optical quartz storage device (Arch 5D disk) created by the Arch Mission Foundation.[29]

Launch

The car was launched aboard a Falcon Heavy rocket from Historic Launch Complex 39A at Kennedy Space Center[10] at 15:45 EST (20:45 UTC) on February 6, 2018,[30] putting the dummy payload into Earth orbit for an eventual elliptical orbit around the Sun.[4]

The car was initially placed in Earth Parking orbit, still attached to the Falcon Heavy second stage. After a longer-than-usual six-hour coast phase through the Van Allen radiation belts (thereby demonstrating a new capability requested by the U.S. Air Force for direct GEO insertion of heavy intelligence satellites), the second stage reignited for the Earth-escape trajectory.[31][32][33] The car features three cameras, which provided "epic views".[34]

Following the successful launch, the payload was given the USSPACECOM Satellite Catalog Number of 43205 with a description of "Tesla Roadster/Falcon SH" along with the International Designator of 2018-017A.

Media coverage

Final image from the Roadster

In the hours after the successful Falcon Heavy launch, a live video feed of the Roadster and Starman from three cameras mounted inside and on booms attached to the outside of the vehicle was broadcast on YouTube. It was expected to last for about twelve hours until the on-board batteries were depleted; however, the livestream lasted for just over four hours.[5]

Orbit

Its elliptical orbit goes out to 1.67 AUs from the sun in November 2018 just outside Mars' orbit

The car was launched into an Elliptical orbit around the Sun that will cross the orbit of Mars and reach a distance of 1.70 AU from the Sun.[4] The trajectory was not designed to intercept Mars, so the car will not fly by Mars nor enter an orbit around Mars.[35]

Even if the launch targeted an actual Mars Transfer orbit, neither the car nor the Falcon Heavy upper stage is designed to function in deep space, lacking the propulsion, maneuvering, power, and communications capabilities required to operate in interplanetary space or enter Mars' orbit. The purpose of launching the Roadster into this heliocentric orbit is to demonstrate that the Falcon Heavy can launch payloads that could reach Mars.[35]

Future

According to Musk, the car could stay drifting in space for a billion years. According to William Carroll, a chemist at Indiana University, over time it is expected that the Roadster will steadily sustain structural damage from solar radiation, Cosmic radiation, and Micrometeoroid impacts. Organic material, i.e. any material with carbon–carbon bonds, including carbon fiber parts, will eventually break apart due to radiation. Tires, paint, plastic and leather might last only about a year. The carbon fiber parts will last considerably longer. Eventually only the aluminum frame, inert metals and glass not shattered by Meteoroids will remain.[36]

See also

References

  1. There's a Starman Waiting in the Sky SatTrackCam Leiden (b)log. Retrieved February 8, 2018.
  2. "Falcon Heavy Demonstration Press Kit" (PDF). SpaceX. February 2018. 
  3. 3.0 3.1 3.2 Musk, Elon (March 27, 2012). "Driving with Elon Musk: Tesla's Iron Man Behind the Wheel". Forbes Life (Interview). Interview with Hannah Elliott. Retrieved February 7, 2018. 
  4. 4.0 4.1 4.2 Harwood, William (February 8, 2017). "'Starman' puts Earth in the rearview mirror". Spaceflight Now (originally writtern for CBS NEWS). 
  5. 5.0 5.1
  6. "Elon Musk says SpaceX will try to launch his Tesla Roadster on new heavy-lift rocket". Space Flight Now. 
  7. Malik, Tariq (December 1, 2017). "Elon Musk Will Launch His Tesla Roadster to Mars on SpaceX's 1st Falcon Heavy Rocket". Space.com. 
  8. "Falcon Heavy’s Debut Flight Payload: A Tesla Roadster". Aviation Week. December 6, 2017. Retrieved December 7, 2017. 
  9. Knapp, Alex (December 22, 2017). "Elon Musk Shows Off Photos of a Tesla Roadster Getting Prepped to Go to Mars". Forbes. Retrieved December 23, 2017. 
  10. 10.0 10.1 Wong, Kenneth; Office of Commercial Space Transportation (February 2, 2018). License Number: LLS 18-107 (PDF) (Report). Archived from the original on February 3, 2018. Retrieved February 5, 2018. Space Exploration Technologies is authorized … flight of the Falcon Heavy launch vehicle from Kennedy Space Center Launch Complex 39A at Kennedy Space Center (KSC) transporting the modified Tesla Roadster (mass simulator) to a hyperbolic orbit 
  11. "The First Car in Space". December 30, 2017. Retrieved January 14, 2018. 
  12. "The Apollo Lunar Roving Vehicle". NASA. November 15, 2005. Retrieved May 16, 2010. 
  13. Ryba, Jeanne (ed.). "Apollo 10". NASA. Retrieved June 26, 2013. 
  14. "Current locations of the Apollo Command Module Capsules (and Lunar Module crash sites)". Apollo: Where are they now?. NASA. Retrieved December 27, 2014. 
  15. "Falcon Heavy to Launch Next Month, Musk Says He's Sending His Roadster to Mars". Tesla Motors Club. Retrieved February 6, 2018. 
  16. Musk, Elon [@elonmusk] (December 1, 2017). "Payload will be my midnight cherry Tesla Roadster" (Tweet). Retrieved February 6, 2018 – via Twitter. 
  17. Michael Greshko (February 6, 2018). "Falcon Heavy Rocket Makes History With Successful First Launch". National Geographic. Retrieved February 8, 2018. 
  18. Elon Musk Unveils 'Starman' in Tesla Roadster Launching on SpaceX's Falcon Heavy Rocket. Hanneke Weitering, Space.com. February 5, 2018.
  19. Joe Pappalardo (February 5, 2018). "Elon Musk's Space Tesla Isn't Going to Mars. It's Going Somewhere More Important.". Popular Mechanics. 
  20. "SpaceX Successfully Launches the Falcon Heavy—And Elon Musk's Roadster". WIRED. Retrieved February 7, 2018. 
  21. "Car Playing David Bowie's Music Will Be Shot Into Space". Ultimate Classic Rock. 
  22. Can you hear sounds in space? (Beginner). Cornell University.
  23. "Elon Musk Sent a Tesla Playing David Bowie to Mars Yesterday". February 7, 2018. 
  24. Musk, Elon [@elonmusk] (December 7, 2017). "Yes" (Tweet). Retrieved December 8, 2017 – via Twitter. 
  25. Musk, Elon [@elonmusk] (December 7, 2017). "Plus a towel and a sign saying 'Don’t Panic'" (Tweet). Retrieved December 8, 2017 – via Twitter. 
  26. "Elon Musk on Instagram: "Printed on the circuit board of a car in deep space"". Instagram. 
  27. "Falcon Heavy Test Flight". YouTube. Retrieved February 6, 2018. 
  28. Gartenberg, Chaim. "The Falcon Heavy test flight included a copy of Isaac Asimov’s Foundation novels". The Verge. 
  29. "Home". Arch Mission. 
  30. Brinkmann & Santana. "SpaceX Falcon Heavy launch live coverage: Liftoff successful". OrlandoSentinel.com. Retrieved February 6, 2018. 
  31. Berger, Eric. "Elon Musk says the Falcon Heavy has a 50-50 chance of success". Ars Technica. Retrieved February 6, 2018. 
  32. Gebhardt, Chris. "SpaceX set to debut Falcon Heavy in demonstration launch from KSC – NASASpaceFlight.com". NASAspaceflight.com. Retrieved February 6, 2018. 
  33. Boyle, Alan (February 6, 2018). "Elon Musk explains why SpaceX’s Falcon Heavy rocket is risky – and revolutionary". GeekWire. Retrieved February 6, 2018. 
  34. Foust, Jeff [@jeff_foust] (February 5, 2018). "Musk: will be three cameras mounted on the Roadster, should provide "epic views" if all goes well." (Tweet) – via Twitter. 
  35. 35.0 35.1 Plait, Phil. "Elon Musk: On the Roadster to Mars". Syfy Wire. Retrieved December 7, 2017. 
  36. Lezter, Rafi. "Radiation Will Tear Elon Musk's Rocket Car to Bits in a Year". LiveScience. Retrieved February 7, 2018. 

External links

Elon Musk Tesla Motors Falcon rocket launches Orbital launches in 2018