kmiainfo: 5 days after its launch, a geomagnetic storm drops 40 SpaceX satellites 5 days after its launch, a geomagnetic storm drops 40 SpaceX satellites

5 days after its launch, a geomagnetic storm drops 40 SpaceX satellites

بعد 5 أيام من إطلاقها.. عاصفة جيومغناطيسية تسقط 40 قمرا صناعيا لسبيس إكس تتزايد احتمالات حدوث انفجارات شمسية شديدة كلما اقتربت الشمس من ذروة نشاطها في دورة تحدث كل 11 سنة، تتنقل خلالها الشمس بين حالة نشاط أعلى وحالة نشاط أدنى.  في 8 فبراير/شباط الجاري، أعلنت شركة تقنيات استكشاف الفضاء الأميركية "سبيس إكس" (SpaceX) عن سقوط أكثر من 40 قمرا صناعيا تابعا لمشروع "ستارلينك" من مدارها في الفضاء إلى الأرض، وذلك بعد 5 أيام فقط من إطلاقها من قاعدة في مركز كندي للفضاء بولاية فلوريدا الأميركية.  وفي بيان رسمي للشركة، جاء أن سبب هذا السقوط كان عاصفة جيومغناطيسية (geomagnetic storm) قوية، أدت إلى ارتفاع كثافة الغلاف الجوي بقدر طفيف، فازدادت قدرته على سحب الأقمار الصناعية في المدارات المنخفضة بنسبة 50%.  ولأن شركة سبيس إكس عادة ما تطلق أقمارها في مرحلة أولى على ارتفاع حوالي 210 كيلومترات فقط من سطح الأرض (مدار منخفض)، فإن أقمارها الصناعية قد سُحبت بالفعل إلى داخل الغلاف الجوي، وبدأت بالتساقط.  وقد رُصدت قطع ساقطة بالفعل من بعض أقمار ستارلينك في بورتوريكو من قبل الجمعية الفلكية للكاريبي، لكن أحجام الأقمار الصناعية -في العموم- صغيرة بحيث تحترق بالكامل في الغلاف الجوي، وبالتالي لا يوجد ضرر محتمل من سقوطها على الأرض.  ترتبط كبرى العواصف الجيومغناطيسية بظاهرة تسمى الانبعاث الكتلي الإكليلي (ناسا) ما العاصفة الجيومغناطيسية؟ العاصفة الجيومغناطيسية هي اضطراب كبير في الغلاف المغناطيسي للأرض، يحدث بسبب تبادل فعال للغاية للطاقة مع الرياح الشمسية، وهي جسيمات مشحونة عالية الطاقة تنطلق من الشمس من حين لآخر.  وترتبط كبرى العواصف الجيومغناطيسية بظاهرة تسمى الانبعاث الكتلي الإكليلي (Coronal mass ejection)، وهو انفجار هائل على سطح الشمس يُطلق حوالي مليار طن من الجسيمات المشحونة إلى الفضاء، وتتأثر الأرض إذا كان هذا الانفجار في اتجاهها، وعادة ما يستغرق وصول أثره إلى الأرض عدة أيام، وفي هذه الحالة حدث الانفجار الشمسي يوم 30 يناير/كانون الثاني الماضي وتأثرت به الأرض في 2 فبراير/شباط الجاري.  وبشكل عام، فإنه لم يرصد وجود آثار ضارة لتلك العواصف الجيومغناطيسية على جسم الإنسان، لكن مع الانفجارات الشمسية الشديدة يمكن أن تتأثر خطوط ومحطات الطاقة على الأرض وتتوقف عن العمل، وكذلك وسائل الاتصالات وأنظمة الأقمار الصناعية وتقنيات تحديد المواقع.  تتزايد احتمالات حدوث انفجارات شمسية شديدة كلما اقتربت الشمس من ذروة نشاطها (ناسا) دورة الشمس وتتزايد احتمالات حدوث انفجارات شمسية شديدة كلما اقتربت الشمس من ذروة نشاطها في دورة تحدث كل 11 سنة، تتنقل خلالها الشمس بين حالة نشاط أعلى وحالة نشاط أدنى.   ومن المعروف أن الشمس تمرّ حاليا بدورتها المُسجلة رقم 25، والتي بدأت في ديسمبر/كانون الأول 2019-يناير/كانون الثاني 2020، وتتجه في السنوات القادمة إلى ذروتها التي يُتوقع أن تحدث خلال عام 2025.  وتهتم وكالات الفضاء حاليا بهذه الظاهرة، لأن عدد الأقمار الصناعية يتصاعد بشكل كبير، وكذلك تعتمد أنظمة الاتصالات والملاحة على الأرض بشكل كامل على الأقمار الصناعية، ولذلك فإن انفجارا شمسيا كبيرا قد يتسبب يوما ما في مشكلات كبيرة للبشر على الأرض.   5 days after its launch, a geomagnetic storm drops 40 SpaceX satellites  The possibilities of severe solar explosions increase as the sun approaches its peak activity in a cycle that occurs every 11 years, during which the sun moves between a state of higher activity and a state of lower activity.  On February 8, the American space exploration technology company SpaceX announced that more than 40 satellites belonging to the “Starlink” project had fallen from its orbit into space to Earth, just 5 days after its launch from a base in the International Space Station. Kennedy Aerospace Center, Florida, USA.  In an official statement by the company, it was stated that the cause of this fall was a strong geomagnetic storm, which led to a slight increase in the density of the atmosphere, increasing its ability to pull satellites in low orbits by 50%.  Because SpaceX usually launches its satellites in the first stage at an altitude of only about 210 kilometers from the Earth's surface (low orbit), its satellites have already been pulled into the atmosphere and are starting to fall.  Fallen pieces of some of the Starlink satellites in Puerto Rico have already been observed by the Caribbean Astronomical Society, but the satellite sizes are - in general - so small that they burn completely in the atmosphere, so there is no potential damage from falling to Earth.  What is a geomagnetic storm? A geomagnetic storm is a major disturbance in the Earth's magnetosphere, caused by a very efficient exchange of energy with the solar wind, which are charged, high-energy particles that occasionally blast out from the sun.  The largest geomagnetic storms are associated with a phenomenon called coronal mass ejection, which is a massive explosion on the surface of the sun that releases about a billion tons of charged particles into space, and the Earth is affected if this explosion is in its direction, and its effect usually takes several days to reach the Earth, In this case, the solar eruption occurred on January 30, and the Earth was affected on February 2.  In general, the harmful effects of these geomagnetic storms on the human body have not been detected, but with severe solar eruptions, power lines and stations on the ground can be affected and stop working, as well as communications, satellite systems and GPS technologies.  Sun cycle The possibilities of severe solar explosions increase as the sun approaches the peak of its activity in a cycle that occurs every 11 years, during which the sun moves between a state of higher activity and a state of lower activity.  It is known that the sun is currently going through its 25th recorded cycle, which began in December 2019-January 2020, and is heading in the coming years to its peak, which is expected to occur during the year 2025.  Space agencies are currently interested in this phenomenon, because the number of satellites is increasing dramatically, and communication and navigation systems on Earth are completely dependent on satellites, and therefore a large solar explosion may one day cause major problems for humans on Earth.

5 days after its launch, a geomagnetic storm drops 40 SpaceX satellites


The possibilities of severe solar explosions increase as the sun approaches its peak activity in a cycle that occurs every 11 years, during which the sun moves between a state of higher activity and a state of lower activity.

On February 8, the American space exploration technology company SpaceX announced that more than 40 satellites belonging to the “Starlink” project had fallen from its orbit into space to Earth, just 5 days after its launch from a base in the International Space Station. Kennedy Aerospace Center, Florida, USA.

In an official statement by the company, it was stated that the cause of this fall was a strong geomagnetic storm, which led to a slight increase in the density of the atmosphere, increasing its ability to pull satellites in low orbits by 50%.

Because SpaceX usually launches its satellites in the first stage at an altitude of only about 210 kilometers from the Earth's surface (low orbit), its satellites have already been pulled into the atmosphere and are starting to fall.

Fallen pieces of some of the Starlink satellites in Puerto Rico have already been observed by the Caribbean Astronomical Society, but the satellite sizes are - in general - so small that they burn completely in the atmosphere, so there is no potential damage from falling to Earth.

What is a geomagnetic storm?
A geomagnetic storm is a major disturbance in the Earth's magnetosphere, caused by a very efficient exchange of energy with the solar wind, which are charged, high-energy particles that occasionally blast out from the sun.

The largest geomagnetic storms are associated with a phenomenon called coronal mass ejection, which is a massive explosion on the surface of the sun that releases about a billion tons of charged particles into space, and the Earth is affected if this explosion is in its direction, and its effect usually takes several days to reach the Earth, In this case, the solar eruption occurred on January 30, and the Earth was affected on February 2.

In general, the harmful effects of these geomagnetic storms on the human body have not been detected, but with severe solar eruptions, power lines and stations on the ground can be affected and stop working, as well as communications, satellite systems and GPS technologies.

Sun cycle
The possibilities of severe solar explosions increase as the sun approaches the peak of its activity in a cycle that occurs every 11 years, during which the sun moves between a state of higher activity and a state of lower activity.

It is known that the sun is currently going through its 25th recorded cycle, which began in December 2019-January 2020, and is heading in the coming years to its peak, which is expected to occur during the year 2025.

Space agencies are currently interested in this phenomenon, because the number of satellites is increasing dramatically, and communication and navigation systems on Earth are completely dependent on satellites, and therefore a large solar explosion may one day cause major problems for humans on Earth.

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