BS IS0 16457:2022 BSl Standards Publication Space environment (natural and artificial) - The Earth's ionosphere model International reference ionosphere (IRI) model and extensions to the plasmasphere bsi. BSISO16457:2022 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 16457:2022.It supersedes BS IS0 16457:2014 which is withdrawn. The UKparticipation in its preparation was entrusted toTechnical Committee ACE/68, Space systems and operations. request to its committee manager. Contractual and legal considerations This publication has been prepared in goodfaith, however no representation,warranty,assuranceorundertaking (express or implied) is orwill be made, and no responsibility or liability is or will be accepted by BsIinrelationto the adequacy,accuracy,completeness or Thispublication is provided as is,and is to be used at the recipient's ownrisk. The recipient is advised to consider seeking professional guidance with respect to its use of this publication. This publication is not intended to constitute a contract. Users are responsible for its correct application. @TheBritishStandards Institution2022 PublishedbyBSIStandards Limited2022 ISBN9780539066845 ICS 07.060; 49.140 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published underthe authority of the StandardsPolicyand StrategyCommittee on30April2022. Amendments/corrigendaissuedsincepublication Date Text affected BS ISO 16457:2022 INTERNATIONAL ISO STANDARD 16457 Second edition 2022-02-10 Space environment (natural and artificial) The Earth's ionosphere model International reference ionosphere (IRI) model and extensions to the plasmasphere Environnement spatial (naturel etartificiel)-Modele de Iionospheredela Terre- ModeledeIionosphereinternationalede référence (IRl)etextensionsalaplasmasphere Reference number ISO 16457:2022(E) ISO @ ISO 2022