Safe mode can only be turned off by new commands from mission control, but as of now NASA says it isn't too anxious.
The Perseverance team, he said, worked through prepared mitigation strategies that included detuning the receivers and pointing the antennas slightly off-target from the spacecraft to bring the signal within an acceptable range.
The Perseverance forms part of NASA's Moon to Mars mission, which aims to have the first woman (and the next man) on the moon by 2024.
OK, so no big deal, but the second issue, though also not serious, is still a work in progress: The spacecraft is now in safe mode following a temperature anomaly.
Technical issues aside, NASA hopes the Mars rover will be able to find signs of past microscopic life on the planet, as well as study its geology in preparation for future robotic - and perhaps even human - expeditions.
Perseverance is due to land at the base of a 250m-deep crater called Jezero, site of a former lake and water system from 3.5 billion years ago that scientists suspect could bear evidence of potential past microbial life.
The second issue that triggered the "safe mode" involved the temperature of the courier spacecraft - also known as the cruise stage - as it orbited the Earth. Perseverance also will collect and store rock and soil samples meant to be returned to Earth in the future. When they arrive on Earth, the Mars samples will undergo in-depth analysis by scientists around the world using equipment far too large to send to the Red Planet.
Among the many high-tech tools on board the Perseverance, the Mars Oxygen In-Situ Resource Utilization Experiment, or MOXIE, is created to prove that it is in fact possible to convert Martian carbon dioxide into oxygen.
Since NASA's first Mars rover Sojourner landed in 1997, the agency has sent two others, Spirit and Opportunity. "Next stop, Jezero Crater".
JPL, which is managed for NASA by Caltech in Pasadena, California, built and will manage operations of the Mars Perseverance rover.