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Type: Document
Date/Time: 2019-08-02 12:12 UTC

November was a month of close approaches of many small objects. A particularly interesting case was 2015 VY105, which came to less than 30 000 km from the Earth’s surface on 15 November.

Type: Document
Date/Time: 2019-12-20 09:25 UTC

Type: Document
Date/Time: 2020-07-09 15:47 UTC

Type: Document
Date/Time: 2020-07-27 14:02 UTC

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: 2021-04-27 15:18 UTC

Type: Document
Date/Time: 2019-08-02 11:07 UTC

We took the opportunity of the ExoMars 2016 launch to organize a ground-based observational campaign. The goal was to test, in a reverse mode, the observational scenario needed to monitor the approach of a small Earth impactor. The spacecraft and other hardware related to the launch was successfully imaged;

Type: Document
Date/Time: 2023-02-23 08:40 UTC
Type: Document
Date/Time: 2023-02-23 08:40 UTC
Type: Document
Date/Time: 2021-04-28 12:33 UTC

Type: Document
Date/Time: 2019-09-09 16:53 UTC

Type: Document
Date/Time: 2019-08-02 15:44 UTC

The month ofApril saw two very important international meetings on NEOs taking place at the ESA ESRIN establishment in Frascati. On g—10 April the Space Mission Planning Advisory Group (SMPAG) met for two days for their third regular meeting.

Type: Document
Date/Time: 2019-07-31 15:26 UTC

The month of September was unusually rich of close approaches. Nine objects,all with a diameter of about 10 metres, flew by our planet closer than about the distance of the Moon.

Type: Document
Date/Time: 2022-09-05 14:00 UTC

September 2022 Newsletter

Type: Document
Date/Time: 2023-09-07 10:49 UTC

Type: Document
Date/Time: 2019-07-31 11:05 UTC

The number of known NEAs reached the round total of 20 000 at the end oflast month. This group of asteroids is steadily growing at a pace of roughly 160 new discoveries each month, thanks to the work done by the main asteroid surveys.

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

A new release of our NEO Web Portal is on-line at http://neo.ssa.esa.int/. It represents a major update of the SSA-NEO system since it includes a number of new functionalities and an improved graphics. The possibility of visualizing the actual trajectory of an NEO including gravitational perturbations and an enlarged plot at close encounter has been implemented.

Type: Document
Date/Time: 2020-08-18 15:45 UTC
Type: Document
Date/Time: 2020-06-25 10:57 UTC
Type: Document
Date/Time: 2021-07-06 08:49 UTC

July 2021 Newsletter