Starlink’s ‘megaconstellation’ of satellites may account for 90% of close to orbital misses, scientist says


  • Starlink satellites will finally be chargeable for 90% of close to misses in Earth orbit, a scientist predicts.
  • Hugh Lewis instructed that Starlink satellites had been already concerned in about 50% of close to misses.
  • Close to misses happen when two spacecraft go inside one kilometre of one another.
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Starlink satellites will finally be concerned in 9 in 10 close to misses between spacecraft which are orbiting Earth, a scientist and house particles knowledgeable has predicted.

As soon as the “megaconstellation” of Starlink satellites has reached its supposed measurement of 12,000, it will likely be chargeable for 90% of those shut encounters, analysis by Hugh Lewis, of the College of Southampton, printed by, suggests.

Starlink, which is owned by Elon Musk’s SpaceX, goals to create “the world’s most superior broadband web system.” It has already launched round 1,700 satellites into Earth orbit, that are chargeable for about half of all close to misses presently, Professor Lewis’ analysis suggests.

Close to misses in Earth orbit happen when two spacecraft go inside one kilometre of one another. With a quickly rising variety of satellites being despatched into orbit, scientists are involved in regards to the elevated chance of collisions, and the potential for a series response that results in a number of collisions.

Lewis examined information from the Satellite tv for pc Orbital Conjunction Studies Assessing Threatening Encounters in House (Socrates) database, which tracks satellite tv for pc orbits and fashions their trajectory to evaluate collision danger. He checked out information again to Might 2019, when Starlink launched its first batch of satellites.

Lewis stated that Starlink satellites had been chargeable for 1,600 shut encounters between two spacecraft every week. Excluding close to misses involving two Starlink satellites, the determine was 500, he stated.

He instructed that the variety of encounters picked up by the Socrates database “has greater than doubled and now we’re in a scenario the place Starlink accounts for half of all encounters.”

OneWeb, a Starlink competitor, has 250 satellites in orbit, that are concerned in 80 close to misses with different operators’ satellites every week, in response to information that Lewis supplied to

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