The pair will attempt to beam a "hello world" message tomorrow when they pass near Los Angeles.
Elon Musk is celebrating another successful launch as two of SpaceX' experimental satellites enter low-Earth orbit.
The pair represents the first microsatellites in the company's proposed Starlink service. Eventually, a constellation of 4,000+ satellites could provide wireless broadband internet service across the globe.
"First two Starlink demo satellites, called Tintin A & B, deployed and communicating to Earth stations," Musk announced on Twitter. "Tintin A & B will attempt to beam 'hello world' in about 22 hours when they pass near LA."
The company was not as successful in catching a payload fairing with a giant "catcher's mitt" attached to a ship. Musk suggests the maneuverable fairing missed its target by a few hundred meters and landed intact in water.
The fairings are worth several million dollars, presenting another opportunity for SpaceX to slash launch costs as it continues to serve third-party customers an potentially expand its own Starlink network.
First two Starlink demo satellites, called Tintin A & B, deployed and communicating to Earth stations pic.twitter.com/TfI53wHEtz— Elon Musk (@elonmusk) February 22, 2018