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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Dear IGS Colleagues,</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">At the recent IGS Governing Board (GB) meeting held in Rimini on
<b>August 30, 2025</b>, the GB members engaged in a forward-looking discussion on the potential evolution of the IGS. </span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">A key topic was whether the IGS should embrace the emerging
<b>Low Earth Orbit Positioning, Navigation, and Timing (LEO-PNT)</b> technology.</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">A collaborative effort between international agencies, industry, and academia produced the
<b>State of the Market Report for LEO-PNT</b>, published last year, accessible </span>
<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(204, 98, 103);"><b><u><a href="https://frontiersi.com.au/wp-content/uploads/2025/01/FrontierSI-State-of-Market-Report-LEO-PNT-2024-Edition-v1.1.pdf" title="https://frontiersi.com.au/wp-content/uploads/2025/01/FrontierSI-State-of-Market-Report-LEO-PNT-2024-Edition-v1.1.pdf" data-outlook-id="2b446428-0935-4439-b3ec-a7ce08298778" data-ogsc="" style="color: rgb(204, 98, 103); margin-top: 0px; margin-bottom: 0px;">here</a></u></b></span><span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">.
</span><span style="font-family: Aptos; font-size: 16px; color: rgb(0, 0, 0);">This shall provide an overview of the LEO-PNT technology.</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">We are now seeking input from the entire IGS community to understand your perspectives on this important topic. The central question is:</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 16px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">👉
</span><span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><b>Should the IGS include LEO-PNT systems in its scope?</b></span></p>
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<span style="font-family: Aptos; font-size: 16px; color: rgb(0, 0, 0);">This includes exploring, for example, the following areas:</span></p>
<ul style="text-align: left;">
<li style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<div role="presentation" style="line-height: 1.5;">How LEO-PNT data could be integrated into current GNSS processing (e.g., by IGS Analysis Centers)</div>
</li><li style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
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Whether and how the IGS should support standardization of LEO-PNT data formats (e.g., RINEX or a brand-new format)</div>
</li><li style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<div role="presentation" style="line-height: 1.5;">How the IGS infrastructure might evolve to support LEO-PNT data tracking</div>
</li></ul>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Your feedback is essential. Based on the survey results, the IGS Governing Board will decide by the end of the year whether to support LEO-PNT systems. A positive
outcome may lead to the creation of a <b>LEO-PNT Task Force</b> to coordinate efforts across IGS domains such as RINEX, ACC, RF, IC, etc.</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><u>📝
</u><b><u>Please share your views by completing the survey below by October 31, 2025. </u></b></span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Your feedback is essential and every perspective is important: 👉
</span><span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(204, 98, 103);"><a href="https://forms.office.com/e/EpnwM9XNCr?origin=lprLink" title="https://forms.office.com/e/EpnwM9XNCr?origin=lprLink" data-outlook-id="046303b4-383e-4416-96bd-976364e86613" data-ogsc="" style="color: rgb(204, 98, 103); margin-top: 0px; margin-bottom: 0px;">https://forms.office.com/e/EpnwM9XNCr?origin=lprLink</a></span></p>
<div style="font-family: Aptos, Arial, Helvetica, sans-serif;"><span style="font-size: 12pt;">We look forward to shaping the future of IGS together.
</span><span style="font-size: 16px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Thank you for your time and valuable support.</span></div>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Warm regards,</span></p>
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<span style="font-family: Aptos, Arial, Helvetica, sans-serif; font-size: 12pt; color: black;">Francesco Gini</span></p>
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<span style="font-family: Aptos; font-size: 16px; color: black;"><i>Navigation Engineer @ ESA/ESOC - Navigation Support Office and IGS RINEX
</i></span><span style="font-family: Aptos; font-size: 16px; color: rgb(0, 0, 0);"><i>Committee</i></span><span style="font-family: Aptos; font-size: 16px; color: black;"><i> chair</i></span></p>
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