1366 days since start of observations
167.37 hours of lunar observations
131.75 TB of lunar images
112 NEO lunar impact events
NELIOTA impact flashes

Location of the impact flashes detected so far by NELIOTA.

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NELIOTA Terms & Conditions

Terms and Conditions

The Web Portal of the NELIOTA project presents news, information and archive data of the lunar impacts detected in the framework of the specific project.

The Web Portal offers the general public the possibility to learn all about the specific ESA project, as well as specialized content the related research community.  It also serves as a channel to link visitors to ESA's more specialized scientific and technical data.

The website is hosted by the National Observatory of Athens (NOA), Greece.



Access to, and use of, this website constitutes acceptance of the following general terms and conditions.

Neither ESA nor NOA nor any other party involved in creating, producing or delivering the website shall be liable for any direct, incidental, consequential, indirect or punitive damages arising out of Users' access to, or use of, the website. The Web Portal does not guarantee the accuracy of information provided by external sources and accepts no responsibility or liability for any consequences arising from the use of such data.

Though ESA and NOA use the best technical standards to control its site, material on this website may inadvertently include technical inaccuracies or other errors. We should be grateful if users could notify us of any errors or inaccuracies they may find. Please note that users browse and use the website at their own risk. ESA and NOA does not warrant that the functional aspects of the website will be uninterrupted or error free or that this website, or the server that makes it available, are free of viruses or other harmful components although extra care in daily basis aims to minimization of these risks. ESA and NOA may change material on the site without prior notice.


Access and Availability of service and links

The NELIOTA site may contain links and references to third-party websites. These are provided for the convenience and interest of users and on the part of ESANOA this implies neither responsibility for, nor approval of, information contained in these websites. ESANOA make no warranty, either express or implied, as to the accuracy, availability or content of information, text, graphics which are not under the '' domain. ESANOA has not tested any software located on other sites and does not make any representation as to the quality, safety, reliability or suitability of such software.


Personal data privacy

By accessing the NELIOTA website, certain information about users, such as internet protocol (IP) addresses, navigation through the site, software used and time spent, as well as other similar information, will be stored on NOA servers. These will not specifically identify users and the information will be used internally for website traffic analysis only. If users provide unique identifying information, such as name, address and other information on forms stored on this site, this information will be used for statistical purposes only and will not be published or made available for general access.

ESANOA does not sell or rent its website users' names, addresses, email addresses or other personal information.


Use of IP address

The IP address is a number that is automatically given to your computer when you are surfing on the internet. Servers that host web pages, automatically identify your computer through its IP number. ESANOA uses IP addresses in order to carry out statistics, however, as IP addresses and personal identification are not linked to each other users remain anonymous.



The contents of the NELIOTA Web Portal are intended for the personal and non-commercial use of its users. ESANOA grants permission to users to visit the site, and to download and copy information, images, documents and materials from the website for users' personal non-commercial use under the commitment of direct reference to the specific website. ESANOA does not grant the right to resell or redistribute any information, documents, images or material from its website or to compile or create derivative works from material on its website. Use of material on the website is subject to the terms and conditions outlined below.

All material published on the NELIOTA Web Portal is protected by copyright and owned or controlled by ESA or the party credited as the provider of the content, software or other material.

Users may not modify, publish, transmit, participate in the transfer or sale of, reproduce, create derivative works from, distribute, perform, display or in any way exploit any of the content, software, material or services, in whole or in part, without obtaining prior written authorization.


Use of ESA and NOA logos

The ESA logo is owned by ESA and protected by trademarks and under Article 6ter of the Paris Convention for the Protection of Industrial Property. You may not modify or create derivatives of the ESA logo. Any use, reproduction, publication, display, transmission, making available to the public or exploitation of the ESA logo requires prior written authorization. For authorization, please contact: corporatedesign @

NOA logo is owned by NOA. You may not modify or create derivatives of the ESA logo. Any use, reproduction, publication, display, transmission, making available to the public or exploitation of the NOA logo requires prior written authorization. For authorization, please contact: info_neliota @