We are a few weeks from the first Demo-1 flight test at Space Station, but NASA and SpaceX have pushed back. By switching from a commercial crew program, switching back from ten days from January 7 to January 17 will allow time for the Dragon capsule to return from its 16th ISS supply cycle (if you're fast, you can capture a spaceship to live this morning, two days after it was started). Her competition, Boeing's Starliner, is scheduled for testing in March.
Obtaining this test for data acquisition and testing of the suppression function during a flight before flying with the Crew Dragon capsule carrying the astronauts on board is critical, as stated by Commercial Crew Program Manager Kathy Lueders. "The upcoming steps before the test missions are critical, and their significance can not be underestimated. We do not run data but data. Finally we are flying the SpaceX Demo-1 at the right time, so we get the right data back to support the flight cancellation test and another trial flight our astronauts are on board. "