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Type: Document
Date/Time: 2021-04-01 12:42 UTC

Type: Document
Date/Time: 2019-12-20 09:31 UTC

Type: Document
Date/Time: 2020-07-03 07:51 UTC
Type: Document
Date/Time: 2022-02-14 07:12 UTC
Type: Document
Date/Time: 2020-07-03 07:33 UTC
Type: Document
Date/Time: 2020-06-25 11:25 UTC
Type: Document
Date/Time: 2019-07-31 13:24 UTC

On 25 April 2018 ESA’s Gaia Data Processing and Analysis Consortium published the second release of the mission data products (known as Data Release 2, or DR2 for short). For the first time, Gaia astrometry of more than 14 000 known asteroids was made public, showing that the spacecraft can achieve astrometric precisions at the milliarcsecond level.

Type: Document
Date/Time: 2022-04-05 14:49 UTC

April 2022 Newsletter

Type: Document
Date/Time: 2019-08-02 15:39 UTC

Two large objects have been observed in the month ofJuly. (85989) 1999 JD6 had a distant encounter with the Earth, while the newly discovered asteroid 2015 OL35 entered our priority list for follow-up observations.

Type: Document
Date/Time: 2019-08-02 15:31 UTC

During the month of September a news circulated on European media claiming that between 22 and 28 September the Earth would have been hit by meteorites and other cataclysmic events.

Type: Document
Date/Time: 2019-08-02 15:41 UTC

Some media attention was given to the distant fly-by of asteroid (1566) Icarus. Although the event in itself posed no collision threat whatsoever,Icarus is indeed an interesting object for the history of NEOs.

Type: Document
Date/Time: 2023-01-05 12:17 UTC

January 2023 Newsletter

Type: Document
Date/Time: 2019-08-02 11:02 UTC

The newly discovered asteroid (469219) 2016 HO3 has been attracting the interest of the NEO community becauseof its peculiar orbital path. Having the same period of revolution of the Earth but a higher eccentricity and being properly phased, this object appears to circle our planet in a retrograde “quasi-satellite” orbit with period one year.

Type: Document
Date/Time: 2019-08-02 11:05 UTC

On 9 May the planet Mercury will transit the Sun as seen from Earth. Although not an asteroid event, this gives us a chance to talk about how transits have been used in the past to probe the population of small asteroids extremely close to the Sun (the so-called Vulcanoids).

Type: Document
Date/Time: 2019-07-31 14:53 UTC

During 2015-2016 ESA funded the development of two small robotic observatories, called the Test-Bed Telescopes (TBTs). The main goal is to develop and test a fully automated telescope control system to observe NEOs and space debris.

Type: Document
Date/Time: 2019-07-31 13:21 UTC

Current NEO statistics About 4% of the known NEO population is in the risk list. This value has remained roughly constant over the past years even if the discovery rate has increased.

Type: Document
Date/Time: 2019-07-31 14:48 UTC

The closest approach distance is not the only important parameter for assessing the asteroid hazard. The velocity plays a crucial role in shaping the outcome of a close encounter as well as in evaluating the consequences of an impact. The speed at which an asteroid flies by the Earth results from geometrical and dynamical considerations characterizing its pre-encounter orbit.

Type: Document
Date/Time: 2021-11-05 13:47 UTC

November 2021 Newsletter

Type: Document
Date/Time: 2019-07-31 14:50 UTC

During the past year ESA funded the refurbishment and modernization of the 0.8 m Schmidt reflector located at the Calar Alto Observatory in Spain. The telescope, identified with the MPC code Z84,is now operational and can be remotely controlled.

Type: Document
Date/Time: 2019-07-31 13:30 UTC

For the first time in the history of NEA observations more than 2 000 new NEAs have been discovered in one calendar year, resulting in a monthly average of nearly 170 new asteroids. In addition, 2017 was the fifth year in a row with NEA discoveries above a thousand.