P2_7 Close Encounters of the Unkind

Daniel Staab, Emily Jane Watkinson, Maria Walach, Zach Rogerson



Possible effects on satellites in Earth orbit caused by the unusually close encounter between the asteroid 9942 Apophis and Earth in 2029 are assessed. A worst case scenario for GPS, the most important system at risk, showed that the gravitational perturbation of orbits is negligible. Furthermore, it was found that Apophis will remain intact during the encounter, as its closest possible approach occurs at approximately twice the Roche limit.

Full Text:



  • There are currently no refbacks.
We use both functional and performance cookies to improve visitor experience. Continue browsing if you are happy to accept cookies. Please see our Privacy Policy for more information.