<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Aptos;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:12.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:11.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Dear CEDAR community, <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>We would to invite you to present your work at the EGU session “<b>LEO satellites for Exploring the near-Earth Magnetic Field and the Ionosphere-Thermosphere Environment”</b> (<a href="https://meetingorganizer.copernicus.org/EGU26/session/55987" target="_blank">https://meetingorganizer.copernicus.org/EGU26/session/55987</a>)<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>We solicit contributions in geomagnetism, ionospheric, and thermospheric sciences related to the Earth and near-Earth processes, with a focus on existing and planned LEO satellites. Studies consisting in combined analysis of multi-mission satellite data, including missions such as ICON and EZIE, with ground-based data or models are welcome. We also welcome studies that use innovative approaches, such as data assimilation-based techniques. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>EGU General Assembly (https://www.egu26.eu/) takes 3–8 May, in Vienna and online. The abstract submission deadline is Thursday, 15 January 2026, 13:00 CET. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Best regards,<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Martin Fillion, Alexander Grayver, Astrid Maute, Alessio Pignalberi, Enkeledja Qamili<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>--------------------------------------------------------------------------------------------------------------------------------------<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Full session description:<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>Low-Earth orbit (LEO) satellites provide unique opportunities to characterize the Earth's magnetic field, ionospheric currents and plasma parameters, and thermospheric density and winds across a wide spectrum of time and spatial scales, and for a large range of solar and geomagnetic activities. At the forefront of this advance are the three ESA Earth Explorer Swarm satellites, which have been providing high-accuracy measurements of the Earth's magnetic field, electric field, plasma parameters, precise-orbit determination, and accelerometer observations since their launch in November 2013. They have proven very valuable for studying the near-Earth magnetic field and the coupled ionospheric-thermospheric environment, and enabled the development and implementation of advanced models and operational space weather services. The scientific potential of the polar-orbiting Swarm satellites is today augmented by newly available data, especially those collected by the low-inclination Macau Science Satellite 1 and CSES satellites.<br>In addition, the ESA Scout NanoMagSat constellation, consisting of one near-polar and two 60° inclination satellites, is scheduled to launch near the end of 2027, with full operation planned for 2028. It will acquire high-accuracy magnetic vector and scalar data, electron density, and electron temperature data, navigation data, and collect ionospheric radio-occultation profiles. All these data are also complemented by increasingly available platform-magnetometer data, such as from the CryoSat-2, GRACE, GRACE-FO, GOCE, and E-POP satellites. The new abundance of satellite data provides unprecedented space-time data coverage at LEO satellite altitudes, opening the way for new scientific opportunities.<o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'>We invite contributions in geomagnetism, ionospheric, and thermospheric sciences related to the Earth and near-Earth processes, with a focus on existing and planned LEO satellites. Studies consisting in combined analysis of multi-mission satellite data, including missions such as ICON and EZIE, with ground-based data or models are welcome. We also welcome studies that use innovative approaches, such as data assimilation-based techniques. <o:p></o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p><p><span style='font-size:10.0pt;font-family:"Verdana",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p></div></body></html>