ISO/TR 23689:2024

FINAL DRAFT
Technical
Report
ISO/DTR 23689
ISO/TC 20/SC 14
Space environment (natural
Secretariat: ANSI
and artificial) — Space weather
Voting begins on:
information for use in space
2024-03-27
systems operations
Voting terminates on:
2024-05-22
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
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BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/DTR 23689:2024(en) © ISO 2024

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FINAL DRAFT
ISO/DTR 23689:2024(en)
Technical
Report
ISO/DTR 23689
ISO/TC 20/SC 14
Space environment (natural
Secretariat: ANSI
and artificial) — Space weather
Voting begins on:
information for use in space
systems operations
Voting terminates on:
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DTR 23689:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

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ISO/DTR 23689:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Space weather . 2
4.1 Origin of space weather concept.2
4.2 Concept of space weather.3
4.3 Space weather factors .3
4.4 Space weather impacts on the near-Earth space .3
4.5 Space weather domains .3
4.6 Space weather information .
...

ISO/DTR2DTR 23689
ISO/TC 20/SC 14
Secretariat: ANSI
Date: 2024-01-2903-13
Space environment (natural and artificial) — Space weather
information for use in space systems operations
1 Table of Contents

---------------------- Page: 1 ----------------------
ISO/DTR 23689:(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2024 – All rights reserved

ii

---------------------- Page: 2 ----------------------
ISO/DTR 23689:(en)
Contents
Foreword . vi
Introduction .vi i
1 Scope . ix
2 Normative references . 1
3 Terms and definitions . 1
4 Space weather . 3
4.1 Origin of space weather concept . 3
4.2 Concept of space weather . 3
4.3 Space weather factors . 3
4.4 Space weather impacts on the near-Earth space . 4
4.5 Space weather domains . 4
4.6 Space weather information . 4
4.7 Space weather operational models . 4
4.8 Space weather time frames . 4
5 Time frames for space weather information . 4
5.1 Historical . 4
5.2 Current epoch (Nowcast) . 4
5.3 Forecast . 5
6 Galactic cosmic rays . 5
7 Solar environment within the heliosphere . 5
7.1 Solar dynamo .
...