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Name:

Help: Search for Asteroids

Type: Web Content Article
Date/Time: 2023-09-28 09:59 UTC

Our search engine provides a comprehensive exploration of the entire asteroid database, offering a wide range of filtering options based on object group, risk class, orbital parameters,...

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Help: Object

Type: Web Content Article
Date/Time: 2023-09-28 09:58 UTC

Orbit Properties This page contains information about orbital properties of the object, as computed by the Aegis Orbit Determination and Impact Monitoring system. Orbital elements at a refence...

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Homepage top web content

Type: Web Content Article
Date/Time: 2019-09-02 12:42 UTC

The NEOCC is ESA's centre for observing and computing asteroid orbits and assessing their impact risk.

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Definitions & Assumptions

Type: Web Content Article
Date/Time: 2019-06-04 14:08 UTC

Albedo The ratio of reflected sunlight to incident sunlight. Given an albedo and the distance of the asteroid from the Sun and the observer, the size of an object can be estimated from its...

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gv

Type: Page
Date/Time: 2025-01-21 17:38 UTC
Name:

NEA Chronology v111.0 Jan-01-2021.pdf

Type: Document
Date/Time: 2021-01-04 08:13 UTC

Name:

NEA Chronology v109.0 Nov-01-2020.pdf

Type: Document
Date/Time: 2020-11-02 07:22 UTC

Name:

NEA Chronology v107.0 Sep-01-2020.pdf

Type: Document
Date/Time: 2020-09-02 07:11 UTC

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2024 YR4

Type: Web Content Article
Date/Time: 2020-07-29 11:02 UTC

Close Approach Fact Sheet for asteroid 2024 YR4 (version 1.0)

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Planetary Defense Conference Exercise

Type: Web Content Article
Date/Time: 2019-10-16 09:44 UTC

Planetary Defence involves a collaborative effort among various organizations, including the European Space Agency (ESA), NASA, the Jet Propulsion Laboratory (JPL), and the Center for Near Earth...

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ESA’s Planetary Defence Office is keeping a very close eye on 2024 YR4

Type: Web Content Article
Date/Time: 2025-01-31 09:38 UTC

2024 YR4 has scored the highest Torino Scale in the last 20 years

smpag iawn 2024 yr4
Name:

Optical Ground Station (OGS)

Type: Web Content Article
Date/Time: 2023-05-05 11:59 UTC

ESA's Optical Ground Station (OGS) is a facility built by ESA to support tests of optical communication between Earth and orbiting satellites. The instrument is routinely used by ESA's Space Safety...

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Maintenance Advice 18 02 2025

Type: Web Content Article
Date/Time: 2024-03-28 17:26 UTC

Warning: On 18th February, some maintenance activities will be performed on our portal. Some services may be temporarily unavailable.

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Maintenance Advice 27 02 2025

Type: Web Content Article
Date/Time: 2024-12-04 09:30 UTC

Warning: the NEO Toolkit is undergoing maintenance activities. Some functionalities might not work as expected.

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2024 XA1

Type: Web Content Article
Date/Time: 2024-12-06 16:33 UTC

Summary 2024 XA1 was the eleventh asteroid discovered on an impact trajectory, and the fourth one in 2024. It was found by the Catalina Sky Survey team observing from Kitt Peak, Arizona. It...

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Imminent Impactors

Type: Page
Date/Time: 2025-03-05 09:54 UTC
Name:

Imminent Impactors

Type: Page
Date/Time: 2025-03-05 10:29 UTC
Name:

Help: Imminent Impactors

Type: Web Content Article
Date/Time: 2025-03-05 10:27 UTC

This table contains a list of NEAs with confirmed 100% Earth impact. The columns provide key parameters used in the assessment, including nominal impact time, absolute magnitude, and estimated size...

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NEA Chronology v110.0 Dec-01-2020.pdf

Type: Document
Date/Time: 2020-12-01 07:13 UTC

Name:

NEO Toolkit

Type: Page
Date/Time: 2022-09-27 08:33 UTC
Name:

NEO Toolkit

Type: Web Content Article
Date/Time: 2022-09-27 08:43 UTC

This is the page hosting links for the NEO Tools

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NEA Chronology v112.0 Feb-01-2021.pdf

Type: Document
Date/Time: 2021-02-02 07:25 UTC

Name:

Help pages

Type: Page
Date/Time: 2025-03-20 11:53 UTC
Name:

Help pages

Type: Web Content Article
Date/Time: 2025-03-20 11:58 UTC

The topics available on this page are designed to help you navigate our site and understand its features. While we aim to cover the most common questions and issues, please note that some topics...

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Aegis version 5: Faster, more resilient, and ready for the next generation of asteroid data

Type: Web Content Article
Date/Time: 2020-09-10 10:33 UTC

latest news

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Aegis version 5: Faster, more resilient, and ready for the next generation of asteroid data

Type: Web Content Article
Date/Time: 2025-03-28 08:11 UTC

Introducing Aegis version 5, the new ESA operational software for asteroid orbit determination and impact monitoring.

aegis orbit determination 2024 yr4
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NEOCC team

Type: Web Content Article
Date/Time: 2025-03-31 08:42 UTC

Last update: 2025-03-31 10:00 UTC Richard Moissl Head of Planetary Defence Office Luca Conversi NEOCC Manager Juan Luis Cano Information Provision Coordinator Marco Micheli NEO Observer...

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NEOCC team former members

Type: Web Content Article
Date/Time: 2025-03-31 08:44 UTC

Former members of NEOCC Detlef Koschny SSA-NEO Office Co-manager (2010-2019) Acting Head of the PDO (2020-2022) Tobias Hoffmann Intern (2024) Selina Machnitzky Intern (2025)

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NEOCC Team

Type: Page
Date/Time: 2025-03-31 08:25 UTC
Name:

April 2025

Type: Web Content Article
Date/Time: 2020-08-05 09:29 UTC

The ESA NEO Coordination Centre has released the April newsletter.

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Maintenance Advice 11 04 2025

Type: Web Content Article
Date/Time: 2025-03-21 16:10 UTC

The portal is undergoing maintenance. Daily updates may be delayed.

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NEA Chronology v115.0 May-02-2021.pdf

Type: Document
Date/Time: 2021-05-03 06:09 UTC

Name:

2018LA_corridor

Type: Document
Date/Time: 2023-02-23 08:40 UTC
Name:

Close approach fact sheet for asteroid 2023RS.pdf

Type: Document
Date/Time: 2023-09-13 15:11 UTC

Name:

NEA Chronology v113.0 Mar-01-2021.pdf

Type: Document
Date/Time: 2021-03-02 07:18 UTC

Name:

NEA Chronology v114.0 Apr-01-2021.pdf

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

Name:

NEO

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

2018LA_FBVT

Type: Document
Date/Time: 2024-11-29 14:09 UTC
Name:

OBS

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

ESA-S2P-PD-RDL-0006_1_0_Riddle_03_with_answer_2020-08-26.pdf

Type: Document
Date/Time: 2020-08-27 08:09 UTC

Name:

riskList-innerMainBelt-didymos-apophis.mp4

Type: Document
Date/Time: 2022-09-27 15:11 UTC
Name:

Close approach fact sheet for asteroid C9FMVU2.pdf

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

Name:

DART impact observations.mp4

Type: Document
Date/Time: 2022-09-27 15:10 UTC
Name:

2022WJ1_meerkat.png

Type: Document
Date/Time: 2022-11-22 15:06 UTC
Name:

SOVT

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

Dino

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

flyeye

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

NEA Chronology v119.0 Sep-01-2021.pdf

Type: Document
Date/Time: 2021-09-01 06:05 UTC

Name:

2023CX1_IC_3D

Type: Document
Date/Time: 2023-02-23 08:41 UTC
Name:

2023CX1_FBVT

Type: Document
Date/Time: 2024-11-29 14:08 UTC
Name:

2023CX1 OVT

Type: Document
Date/Time: 2023-02-23 08:41 UTC
Name:

SOVT_demo

Type: Document
Date/Time: 2024-03-19 09:42 UTC
Name:

NEA Chronology v118.0 Aug-01-2021.pdf

Type: Document
Date/Time: 2021-08-02 11:20 UTC

Name:

2018LA_IC_3D

Type: Document
Date/Time: 2023-02-23 08:40 UTC
Name:

2008TC3 OVT

Type: Document
Date/Time: 2023-02-23 08:36 UTC
Name:

OD

Type: Document
Date/Time: 2025-03-31 08:31 UTC
Name:

2014AA_FBVT

Type: Document
Date/Time: 2024-11-29 14:09 UTC
Name:

2019MO_FBVT

Type: Document
Date/Time: 2024-11-29 14:09 UTC
Name:

2020_QG_square.png

Type: Document
Date/Time: 2020-08-20 11:39 UTC
Name:

The ZTF Survey

Type: Document
Date/Time: 2020-01-21 13:47 UTC