modern Pan-STARRS (not providing a public tool) allow precovery searches of known asteroids and NEAs in their own archives.\
Within the EURONEAR[^5] project, since 2007 we datamined some major image archives to improve known NEA orbits, involving many amateurs and students in a few public outreach and educational projects. In 2010 we published the [*Precovery*]{} tool which allows searches of all know NEAs in a few existing and any other given instrument archive indexed in a simple ASCII meta-data format. Using this tool with four powerful archives (CFHTLS-MegaCam, ESO/MPG-WFI, INT-WFC and Subaru-SuprimeCam) we improved the orbits of more than 400 NEAs searched through 800,000 images [@Vaduvescu2009; @Vaduvescu2011; @Vaduvescu2012; @Vaduvescu2013; @Vaduvescu2017].\
Similar work has been carried out recently for detection and data mining of asteroids in the Kilo-Degree Survey (KiDS) observed with the VST-OmegaCam [@Mahlke2018] which resulted in 20,221 candidate objects (about half known and unknown asteroids) detected in 346 sq.deg. Other authors proposed similar public asteroid data mining and citizen science projects. In 2012, S. Gwyn proposed the “MegaCam Archival Asteroid Search Verification” (MAASV) project focusing on the CFHT-MegaCam archive [@Gwyn2012c]. Following our call for collaboration in 2010, the former EURONEAR member E. Solano proposed the SVO-NEA [@Solano2014] citizen science 