The Robot Perseverance had minor contact and temperature issues, automatically activated “safe mode”.
Simulate Perseverance flying in space. Photo: Space.
Perseverance self-propelled robot launched at 6:50 pm on July 30, Hanoi time on the back of the Atlas V missile from Cape Canaveral Air Force Station in Florida, USA, started the Mars 2020 mission. Not long after the press conference after the launch, NASA confirmed Receiver Perseverance switches to “safe mode” due to an unexpected temperature difference. “Data shows the spacecraft automatically activates safe mode, most likely because the ship is somewhat colder than expected when Mars 2020 is in the shadow of the Earth. Currently, the temperature is normal. and the spacecraft was out of the shadow zone, “NASA said.
The project team figured out that the self-heating system uses freons to keep the self-propelled robot’s nuclear battery cool. As Perserverance flies over the Earth’s shadow, the temperature in the cooling system is lower than when it was launched in the sun. Experts will continue to carefully analyze the telecoms data to re-check. Once completed, they can return the Perserverance robot to its operating mode.
On July 31, the project team received a notification that the communication problem has been fixed. During the first few hours after launch, although the mission controller might be able to receive the spacecraft’s signal, the signal was not processed properly. However, the situation is not of much concern, according to Matt Wallace, deputy project manager of Mars 2020 at NASA’s Jet Propulsion Laboratory (JPL) in California. The cause of the communication incident was because NASA relied on a system called the Deep Space Network (DSN) to communicate with Perseverance after a spacecraft had not yet entered this space.
Since the DSN consists of massive antennas equipped with ultra-sensitive receivers, signals from a spaceship too close to the network can bounce off the system, like someone shouting directly into your ear. Engineers need to adjust network settings to process information from spacecraft. NASA’s Curiosity self-propelled robot faced a similar problem when it launched in 2011.
Perseverance is programmed to fly straight and stable for at least the next two weeks. Experts have plenty of time to return the spacecraft to normal operation before the first flight adjustment. The ship will need to travel 7 months in deep space to reach the red planet. After reaching Mars, it will undergo flight through the atmosphere, lower and land on February 18, 2021.
(According to Space)