GENERAL SEARCH

Total found (348)

  • 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: 2019-07-31 15:24 UTC

    The number of known near-Earth asteroids has just surpassed the threshold of 15000. That is a 50% increase with respect to 2013, when the 10000th object was found, highlighting the ever increasing success of ground-based NEO detection surveys.

  • Type: Document
    Date/Time: 2019-08-02 09:52 UTC

    2016 NA39 is a newly-discovered asteroid that for a few days in mid-July deserved attention. Because of its large size, around one kilometre, it became the highest rated object with possible impacts in the current century, scoring as high as Palermo Scale of —2.6.

  • 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: 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: 2019-08-02 11:12 UTC

    In the month of December, (29075) 1950 DA, an old NEA, entered the risk list in a peculiar way: the addition is not based on new observations but it is the combined result of an already existing good observational coverage for this object, together with a newly implemented dynamical model now available at NEODYS.

  • 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: 2019-08-02 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: 2019-08-02 15:30 UTC

    Over the past few days there has been a significant media interest in 2015 TB145, a large asteroid that flew past Earth on the night of Halloween. Apart for the popularity of the event generated by the date,the fly-by itself is interesting from a scientific perspective, because it was discovered only three weeks before its closest approach.

  • Type: Document
    Date/Time: 2019-08-02 11:09 UTC

    This month, while reading this newsletter, you will find an object designated with a “non-standard” name: XDg2F93. Labels like this, not following the standard form of year + letters + numbers,are called “temporary designations”.

  • Type: Document
    Date/Time: 2019-08-02 15:42 UTC

    In recent years, it has become increasingly common for ground-based surveys to discover small objects that seem to be in distant Earth-centred orbits. Most of them turn out to be man-made spacecraft or upper stages of spent rockets residing in Earth’s region.

  • 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 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: Web Content Article
    Date/Time: 2019-12-20 09:23 UTC

    The ESA SSA-NEO Coordination Centre has released the December newsletter.

  • Type: Document
    Date/Time: 2020-06-25 10:14 UTC

    February 2020 Newsletter

  • Type: Document
    Date/Time: 2019-08-02 15:47 UTC

    On 25 March 2015 our website experienced unusually high traffic for a few hours, seven times above our average rate. We tracked this boost of popularity to some news about the flyby of asteroid 2014 YB35 that were circulating on the web around that time.

  • Type: Document
    Date/Time: 2020-06-25 10:16 UTC

    March 2020 Newsletter

  • Type: Document
    Date/Time: 2020-06-25 10:17 UTC

    April 2020 Newsletter

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

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

Showing 141 to 160 of 348 entries.