The Chinese space station suddenly accelerated its orbit and descended! What's the situation? The Shenzhou-18 astronauts are still inside, how to deal with it?
Indeed, judging from the orbital inspection data of China's space station, China's space station has indeed experienced an accelerated decline, so what is going on?
The Shenzhou-18 astronauts are still in the space station, how to deal with this problem? Let's take a closer look.
The Chinese space station suddenly accelerated its descent! What is the reason?
You can see from the changes in the orbital data of the Chinese space station that the magnitude of the decline has indeed increased a lot, judging from the data graph given by SegerYu - at least in terms of the amplitude of the line, this can be seen clearly, so what is going on?
For most people, if the Chinese space station undergoes a slight orbit descent, this is no problem, after all, in the process of operation, it will also be affected by the "weak atmosphere".
But this "accelerating" change, then it is definitely not a normal phenomenon, there must be certain factors in this, so what is the reason? In fact, a little understanding will know that this may be related to the sun.
As we all know, there are aurora phenomena in many parts of the mainland, but this aurora activity is brought about by the change of the sun, and the sun is in the 25th cycle of activity, and around the peak of the maximum, there are continuous eruptions, among which X-class flares are very many this year, and the stronger they are, the greater the impact it will bring.
It just so happens that the same is true of the sun's activity in May, and the mainland has even issued a super-geomagnetic storm warning, that is, the maximum level of ultra-geomagnetic storm (Kp=9) level.
And this is also a phenomenon caused by strong solar activity.
Under the influence of geomagnetic storms, the ionosphere will be disturbed in most parts of the continent, short-wave communication and navigation and positioning will be affected to varying degrees, and the density of the upper atmosphere will increase significantly, which will lead to the aggravation of the orbit attenuation of low-orbit satellites.
See? This shows that the impact on space exists, and for the Chinese space station, the impact is also there.
In fact, the mainland's National Space Weather Monitoring and Warning Center has long stated that the development of geomagnetic storms may have an impact on the space station, and the space station may be dragged by the atmosphere to cause the orbit altitude to drop.
Therefore, when you see the orbit of the space station accelerating downward, it may be because the solar activity during this period is too fierce to cause such a phenomenon.
Of course, for people on Earth, this effect can be ignored, and everyone has nothing but to see the beautiful aurora.
So, from the data point of view, the Chinese space station is accelerating its decline, which may be due to solar activity, which is too strong, and this is the reason, which is also the main factor in addition to the weak decline of the Chinese space station itself.
Shenzhou 18 is still on a mission, how to deal with it?
That's right, in space, China's space station has been so affected, does that also have an impact on astronauts?
In fact, there is no need to worry about this, since the mainland has issued a space warning, it must also have an early warning for the Shenzhou 18 astronauts Ye Guangfu, Li Cong, and Li Guangsu who carried out the mission.
Generally speaking, after the warning is issued, the three astronauts cannot go out of the capsule to carry out mission activities, but can only be in the capsule.
Because China's space station will have the ability to defend itself in the face of large-scale high-energy particles, most of them will be bounced away when the high-energy particles hit the space station, so as to protect the astronauts.
In the event of stronger activity, astronauts also have special risk mitigation measures to take place in areas of the station's internal structure that are thicker and then avoid being affected.
Therefore, for the Shenzhou 18 astronauts on the mission, there is no problem at all.
Of course, the Shenzhou 18 astronauts also have countermeasures to the problem of the descent of the space station, and they only need to adjust the orbit of the space station, and the things used in the adjustment have already arrived at the space station.
As we all know, when the mainland performs space station missions, it has to transport cargo materials for astronauts, since Tianzhou-6, including the Tianzhou-7 cargo spacecraft launched in 2024, are all spacecraft that belong to the upgraded version of the mainland, and the cargo compartment has been greatly improved, greatly enhancing the cargo transportation capacity of the sealed cabin, and the materials provided to the astronauts will be able to support a longer time.
Compared with the previous batch, the new batch of spacecraft has increased the volume of the sealed cabin, and the capacity has been increased by about 500 kilograms, from the previous 6.9 tons of "Tianzhou 5" to about 7.4 tons.
Based on the increase in capacity, the launch density of the space station mission "Tianzhou" cargo spacecraft has been adjusted from the previous 2 times/1 year to 3 times/2 years.
The Tianzhou-7 cargo spacecraft that carried out the mission this year is 10.6 meters long and weighs 13.5 tons. The whole is composed of two parts, the lower part is the propulsion module, the upper part is the cargo compartment, with a cargo capacity of 7.4 tons, it is one of the most powerful cargo spacecraft in the world.
In the process of this launch, Tianzhou-7 cargo rumored that in addition to transporting daily necessities and environmental control and health protection materials to astronauts, it also carried fruits, and 30 kilograms more than the last time, in addition to carrying a number of payloads for scientific experiments and verification.
Flying in space requires adjusting the flight attitude and consumes fuel. Therefore, in addition to transporting supplies to astronauts, Tianzhou-7 also needs to replenish propellant to the space station.
The Tianzhou-7 spacecraft carried 1,750 kilograms of propellant, of which 700 kilograms were used to refuel the space station.
Then, when the orbit is gradually lowered, the space station cargo spacecraft will start the engine and raise the orbit, which is very simple and there are no problems.
And if the solar activity continues, can it only be like this?
Indeed, there is no way to do it in space, and there is no way to completely avoid the effects of human activity relative to solar activity.
Therefore, as long as there is a strong activity of the sun, affecting all spacecraft in space, they can only maneuver, adjust their orbits, and then restore them, which is no "way", and may be the only way, at least I personally have not seen other solutions.
Then, in order to reduce the crisis caused by space, it can only be said that we hope that the sun's activity will move to the next stage as soon as possible, that is, to develop to the minimum period, and then the sun's activity will weaken, and it will not have much impact, and this is the general situation.
Therefore, it is also hoped that during the implementation phase of the continental space mission, more attention will be paid to the changes in space activities, after all, how long will the solar eruption weaken.
No one knows this, and it is generally judged in the future, and it is explained according to the number of "sunspots" that erupted in solar activity, so I will not discuss it much here.
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