NEO Coordination Centre


Precursor services

Current number of known NEAs:
Current number of NEAs in risk list:
Last update: 2019-08-18 14:18:00 UTC


2006 QV89 direct observations allow its complete removal from the risk list

16 August 2019

Ecliptic projection of the orbit of asteroid 2006 QV89.

Credit: ESA / NEOCC


One month ago, NEOCC team ruled out the possibility that asteroid 2006 QV89 would impact the Earth this September by making a “non-detection”, i.e. observing the area of the sky where the asteroid would appear if it were on a collision course with our planet - and not detecting it.

New observations taken on 10-11 August with the Canada-France-Hawaii Telescope (CFHT) by Dr. D. Tholen of the University of Hawaii’s Institute for Astronomy retrieved the actual position of the asteroid, ruling out any potential future impact threat to the Earth by this asteroid for the next century. Dr. M. Micheli from NEOCC participated to the recovery of 2006 QV89 using the Calar Alto Schmidt telescope to obtain confirmatory observations.

The press release from CFHT can be found here:










Asteroid's surprise close approach illustrates need for more eyes in the sky

08 August 2019

Asteroid 2019 OK observed moving against backdrop of stars.

Credit: S. Schmalz / ISON

On 25 July, an asteroid the size of a football field flew by Earth, coming within 65 000 km of our planet’s surface during its closest approach – about one fifth of the distance to the Moon.

The 100 m-wide asteroid dubbed '2019 OK' was detected just days before it passed Earth, although archival records from sky surveys show it had previously been observed but wasn't recognised as a near-Earth asteroid.

While 2019 OK illustrates the need for even more eyes on the sky, it also provides an opportunity to improve the asteroid recognising abilities of current and future telescopes, including ESA's upcoming 'Flyeye'.

For more information you can read ESA’s dedicated news at









NEOCC Newsletter: August 2019

05 August 2019

The ESA SSA-NEO Coordination Centre has released the August newsletter summarising the most relevant data and events on asteroids and comets approaching the orbit of the Earth. Please, feel free to forward it to potentially interested people.

You can download the newsletter by clicking on the button below; to subscribe to the service, please fill in the form on page