Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ The spacecraft, which carries permanence, switches to “safe mode” after an error, but NASA says it is not worried

The spacecraft, which carries permanence, switches to “safe mode” after an error, but NASA says it is not worried



The Mars 2020 mission is launched with a Perseverance rover on board.

Mars 2020 mission lAunch, with the rover Perseverance on board.
Image: NASA / Joel Kowski

True to this torturous year, which is 2020, yesterday’s launch of NASA’s Mars permanence rover was not without problems.

On schedule, a ULA Atlas V missile carrying perseverance rover and ingenuity helicopter raised from the nose Canaveral Air Force Station in Florida yesterday morningNow in space, the Mars 2020 mission is expected to reach the Red Planet in February 2021.

Everything looked like a picture perfect, but said NASA several glamorous things happened during the launch, none of which are expected to threaten the mission.

While Atlas V rushed to space, telemetry signals sent to terrestrial antennas failed to receive the input data. The spaceship was obviously too close to NASA’s Deep Space Network – a system of terrestrial antennas designed to communicate in deep space – causes signal saturation on terrestrial receivers, which prevents proper telemetry data acquisition, according to NASA.

“This is a known problem we have encountered in other planetary missions, including during the launch of the NASA Curiosity rover in 2011,” said Matt Wallace, deputy project manager for the Mars 2020 mission at NASA. statement, “The Perseverance team worked through prepared mitigation strategies, including blowing up the receivers and directing the antennas slightly off target from the spacecraft to bring the signal within acceptable limits. We are already in the telemetry conclusion after you take these actions. ”

Okay, so it’s not a big deal, but the second problem, though not serious, is still ongoing: The spacecraft is currently in safe mode after a temperature anomaly.

The system uses a liquid freon circuit in which heat from the spacecraft’s core is transported to radiators on the cruise stage, the part of the vehicle that delivers the rover to Mars. SizIt is possible that the temperature difference between the warm inlet to the radiators and the outlet of the cooler from the radiators will lead to the precautionary software mode.

“When the spacecraft entered the Earth’s shadow, the Sun was temporarily blocked by the Earth and the temperature of the exit dropped,” Wallace said. “This has led to an increase in the gap between warm inlet and power supply. This transient differential triggered an alarm and caused the spacecraft to enter standby mode known as “safe mode”. “

Calling it a “transitional event”, Wallace said that triggering a safe mode “during this transitional phase is not problematic for Mars 2020”.

NASA claims that there is a solution to the problem and the mission controllers are taking the necessary steps to put the spacecraft into normal cruise mode.

Pfu. I am glad that these are secondary problems. The main failure of the Mars 2020 mission is exactly what we do not need at the moment.


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