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The largest optical telescope started observing very faint NEOs in the Northern hemisphere
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A newly-established collaboration between our team and the Instituto de Astrofísica de Canarias (IAC) led to the first-ever observation of an NEA with the 10.4 m Gran Telescopio Canarias (GTC). We targeted 2019 DS1, a high-rated NEO in our risk list, when it was already as faint as magnitude 25.7.

The object was successfully detected, and the resulting astrometry led to an increase of the object's impact probability, that is now approaching 1 in 800 for an impact in 2082.

For more information you can read the IAC press release at