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Total found (348)

  • 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 15:41 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: 2021-01-05 11:13 UTC

    January 2021 Newsletter

  • Type: Document
    Date/Time: 2021-02-05 12:21 UTC

    February 2021 Newsletter

  • Type: Document
    Date/Time: 2020-12-04 09:29 UTC

    December 2020 Newsletter

  • Type: Document
    Date/Time: 2019-07-31 10:57 UTC

    On 22 June 2019, around 21:26 UT (17:26 local time), a roughly 5-metre object entered the atmosphere over the Caribbean Sea, and exploded at an altitude of about 25 km over the sea surface, releasing an energy roughly equivalent to 3 kt of TNT. The explosion was first detected by the Geostationary Lightning Mapper (GLM) instrument on board the GOES-16 geostationary satellite.

  • Type: Document
    Date/Time: 2019-07-31 11:02 UTC

    May will likely be the last month before summer with an average rate of NEO discoveries. Starting in June, most surveys in the South-West of the United States will likely temporarily decrease their productivity due to the summer monsoon season.

  • 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: Web Content Article
    Date/Time: 2020-07-16 06:46 UTC

    Close Approach Fact Sheet for asteroid (52768) 1998 OR2

  • Type: Document
    Date/Time: 2019-07-31 11:08 UTC

    The first edition of the Planetary Defense Conference (PDC) managed by the International Academy of Astronautics happened exactly 10 years ago,in the week of 27-30 April 2009 (before the IAA became involved, there were two other PDCs, both in the USA). The conference was held in Granada, Spain, and was the first of a biennial IAA series that is continuing this month, with the 6th conference being held in College Park, USA.

  • Type: Document
    Date/Time: 2019-07-31 13:15 UTC

    The Fly-Eye Telescope is an innovative project of ESA‘s SSA-NEO Segment that will focus on survey and follow-up of NEOs. Another important milestone on the way to build the telescope was achieved: from 30 July to 1 August ESA attended the acceptance test of the equatorial mount at its production site in Verona, Italy.

  • Type: Document
    Date/Time: 2019-07-31 12:22 UTC

    On 19 October a very small asteroid, designated as 2018 UA, was discovered by the Catalina Sky Survey, and quickly flagged as a potential very close approacher. Immediate follow-up observations by both Catalina and the Spacewatch project led to a much more accurate orbit solution.

  • Type: Document
    Date/Time: 2019-07-31 12:12 UTC

    This year on 8 February marks the 50th anniversary of the fall of the Allende meteorite, the largest carbonaceous chondrite ever found. The atmospheric entry and impact happened at night local time, and were therefore well observed over the entire Northern Mexico. About 2 tonnes of fragments were later collected on ground in a strewn field of about 50 km size.

  • Type: Document
    Date/Time: 2019-07-31 12:08 UTC

    On 1 February 2019 a bright daytime fireball was seen by multiple eyewitnesses around the area of Gulf of Mexico. It exploded over the western tip of Cuba, producing a significant shockwave felt by local residents, and the fall of a large number of stony meteorites, mostly near the village of Viflales.

  • Type: Document
    Date/Time: 2019-07-31 12:19 UTC

    The month of December this year marks the fifth anniversary of the launch of ESA’s Gaia spacecraft. The mission, now operating continuously near the Earth-Sun L2 Lagrangian point, has already revolutionized many fields of astronomy, thanks to the broad and exquisite quality of the data it is producing.

  • Type: Document
    Date/Time: 2019-07-31 13:18 UTC

    On 27 June 2018, after a cruise phase of 3.5 years, the Japanese Hayabusa 2 spacecraft rendezvoused with its target, near-Earth asteroid (162173) Ryugu. The first images sent back by the mission's cameras show a nearly spherical object, much more symmetric

  • Type: Document
    Date/Time: 2019-07-31 12:25 UTC

    Ten years ago, on 6 October 2008,Richard Kowalski, an observer of the Catalina Sky Survey, spotted the first-ever asteroid found on an imminent collision course with the Earth. Over the following hours, hundreds of astrometric observations, plus light curves and spectroscopic data, were collected by observers all over the world.

  • Type: Document
    Date/Time: 2019-07-31 12:14 UTC

    For the first time since 2012 the year that just ended did not break all records of annual NEO discoveries. This was mostly due to unusually poor weather in Hawaii, where many current NEO discovery surveys are located.

  • 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: 2019-07-31 13:29 UTC

    On 10 February 1896 at 09:30 a large fireball appeared in the sky over the Spanish capital, Madrid. The bolide exploded at high-altitude and an air-burst was reported by many observers. Slightly more than one minute after the explosion the shock wave reached the city, causing quite some fear among the population.

Showing 101 to 120 of 348 entries.