ISO INTERNATIONAL STANDARD 19923 First edition 2017-06 Space environment (natural and artificial) Plasma environments for generation of worst case electrical potential differences for spacecraft Environnement spatial (naturel et artificiel) -Environnements plasmatiques pour la génération de différences de potentiel électrique lesplusdefavorablespourlesvehiculesspatiaux Reference number IS0 19923:2017(E) International Organization for Standardization @ IS0 2017 HEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS IS0 19923:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZAISQ 017 - All rights reserVed Not for Resale, 2017/9/12 03:12:23 networking permited without license from IHS IS0 19923:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions. 4 Symbols and abbreviated terms. 5 Criteria for worst-case environment. 6 Procedures for application to spacecraft design .2 7 Space environments for worst-case simulations ..3 7.1 GEO worst-case environment.. ..3 7.2 PEO and MEO worst-case environments ..3 Annex A (informative) Spacecraft charging analysis tools ..4 Annex B (informative) Round-robin simulation[Z] ..5 Annex C (normative) Material properties. ..10 Annex D (informative) Tailoring guideline for this document ..13 Bibliography ..14 iii nSee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 ithout license from IHS