He posted side-by-side photos of the Starlink craft in their fairing and his Tesla Roadster in its fairing in early 2018, before the vehicle took flight on the first test mission of SpaceX's Falcon Heavy rocket.
The satellites are the first operational units of SpaceX's Starlink initiative, a planned mega-constellation of almost 12,000 spacecraft that will sit in a low orbit above Earth and beam internet connectivity to the surface below. Some of the satellites will form network that will use the V band or a band of frequencies ranging between 40 to 75 GHz.
Satellites loaded into a Falcon fairing.
Musk anticipates that "much will likely go wrong" during the first few missions.
Musk first announced the idea in 2015 and aims to build up a fleet of almost 12,000 satellites. The satellites will be launched into three different orbital shells.
So far, SpaceX has only launched two test Starlink satellites, nicknamed TinTin A and TinTin B, which flew to space in February of 2018. Musk confirmed that the satellites are "production design", but they lack certain network components.
Musk also shared a game plan for SpaceX moving forward.
As one Twitter user noted in response to Musk, six additional launches of 60 satellites comes to 420 satellites total. Musk was famously fined $20 million by the SEC for claiming that he might take Tesla public at $420 a share.
Now the company is preparing to launch the Starlink project in earnest.
The five dozen satellites pretty much fill the cavernous fairing, as Musk showed in another tweet.
What's more, a Starship designed for people may be poised to launch them to the moon and perhaps Mars.