Karayip Astronomi Topluluğu (SAC), 7 Şubat’ta mahalli saatle 02:40 civarında, Starlink uydularının Porto Riko’nun üstündeki Dünya atmosferine düşüşünü gösteren görüntüleri elde etti. SAC, uyduların yörüngesini inceleyen birkaç uzmanın, görüntülerin Starlink uydularının Dünya atmosferine çarparken birçok bölüme ayrıldığını gösterdiğini doğruladığını söylüyor. Video ek olarak, uyduların muhtemelen adanın üstünde parçalanmış bulunduğunu gösteriyor.
SpaceX, 3 Şubat’ta 49 yeni Starlink uydusu fırlatmış, sadece ertesi gün, uzaydaki ortam koşulları sebebiyle minimum 40 tanesini kaybetmişti. Uydu filosu atmosferin ısınmasına ve atmosferik yoğunluğun artmasına yol açan bir jeomanyetik fırtınanın içinde kaldı. Bu, sürüklenmeyi yüzde 50’nin üstünde artırdı ve uyduların güvenli moddan çıkmalarını önleyerek onları Dünya atmosferine tekrardan girmeye zorladı. Uydular atmosfere girerken yandı, kısaca yere oldukca azca yada asla yıkıntı düşmedi.
Dünya’ya düşen Starlink uydularının videosunu aşağıda seyredebilirsiniz:
Most of the recent batch of Starlink satellites launched on February 3, 2022, may have reentered the Earth’s atmosphere, or will do it soon, as a recent geomagnetic storm prevented the satellites from reaching their intented orbit, SpaceX said. As of February, over 2,000 Starlink satellites have been launched, as part of a constellation that provides satellite web access to remote areas, and most of Earth. On February 3, 2022, a Falcon 9 rocket was launched from Cape Canaveral with 49 new Starlink satellites, designated as group G4-7. Soon after the launch, satellite tracking experts suspected something went wrong, as the details of the orbit of these new satellites were not still published.
In fact, it’s possible that one or more of the satellites reentered the atmosphere over the Caribbean recently. This video from cameras that monitor the skies of Puerto Rico, from Sociedad de Astronomia del Caribe, shows an interesting event that appears to be related: first, an object is seen disintegrating, with noticeable fragmentation, which is characteristic of space debris.
Impressive visuals are seen moments later, as just one minute later, a bigger object is seen in a spectacular disintegration event, and satellite tracking experts agree the event is probably related to the Starlink satellites launched on February 3, 2022.It turns out that a recent solar storm may be responsible.
It is possible the bigger object seen in the second segment of this video, might be 2, 3 or more satellites disintegrating at the same time.
“Unfortunately, the satellites deployed on Thursday were significantly impacted by a geomagnetic storm on Friday. These storms cause the atmosphere to warm and atmospheric density at our low deployment altitudes to increase. In fact, onboard GPS suggests the escalation speed and severity of the storm caused atmospheric drag to increase up to 50 percent higher than during previous launches. The Starlink team commanded the satellites into a safe-mode where they would fly edge-on (like a sheet of paper) to minimize drag—to effectively “take cover from the storm”—and continued to work closely with the Space Force’s 18th Space Control Squadron and LeoLabs to provide updates on the satellites based on ground radars.Preliminary analysis show the increased drag at the low altitudes prevented the satellites from leaving safe-mode to begin orbit raising maneuvers, and up to 40 of the satellites will reenter or already have reentered the Earth’s atmosphere. The deorbiting satellites pose zero collision risk with other satellites and by design demise upon atmospheric reentry—meaning no orbital debris is created and no satellite parts hit the ground.”, SpaceX said in a recent update.
Marco Langbroeg, a satellite tracking expert from the Netherlands, said: “I did astrometry on the Puerto Rico sighting, and the orbital inclination fits the 53.2 degrees of the Starlink launch. My best guess still remains that this was one of the failed Starlink satellites from Feb 3.”
This sighting over Puerto Rico occurred at 2:40 a.m. AST (06:40 UT) on February 7, 2022.
Each Starlink satellite özgü a size of 10.5 ft (3.2 meter) x 5.25 ft (1.6 meters) and weights 573 lbs. (260 kilograms). Some of the doomed satellites will be reentering the atmosphere during the next few days, and although it is still uncertain exactly where and when, just in case, keep looking up!
Video & article by Eddie Irizarry / Sociedad de Astronomia del Caribe (SAC)
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