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11 December 2018, 15:50 | Updated: 11 December 2018, 17:19
Santa and ISS are set to take part in a 'joint flyby' this evening, and you can track the sleigh test.
Santa is gearing up for his lengthy journey across the world to deliver presents to all the good kids this year.
And, ever the professional, St Nick is taking his sleigh for a little test flight tonight (December 11th) to make sure everything is well oiled and working.
To catch a glimpse of the big fat fella you need to make sure you are outside at 5.12pm precisely, and looking up to the west.
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Metorwatch are asking believers to keep a beady eye out at 5.15pm, when he will be at his highest, before vanishing into the shadows in the south east at around 5.18pm.
They also warn that tonight will be the best opportunity to spot Santa, as his next flybys won't be as visible.
Non believers might argue that Santa is in fact the International Space Station passing overhead, but we know that's not the case.
It is purely coincidence that Saint Nick takes the exact same path as the ISS, at exactly the same speed (17,150mph).
Quick - go spot Santa now!