PROBA

<h2 id="series-of-satellites">Series of satellites</h2>
<p>PROBA is also the name of the series of satellites starting with PROBA-1. The name is also used to refer to the bus of the satellites.
</p><p>The second satellite in the PROBA series, <a href="/facts/PROBA-2/RWE8gmY8">PROBA-2</a>, was launched on 2 November 2009 together with the <a href="/facts/Soil_Moisture_and_Ocean_Salinity_satellite/lBc3U9Rs">SMOS</a> satellite.
</p><p>The third satellite to be launched was <a href="/facts/PROBA-V/dp4j1uUE">PROBA-V</a> (PROBA-Vegetation), on 7 May 2013.
</p><p>The fourth satelite in the program is the formation flying demonstration mission <a href="/facts/PROBA-3/uEyFWydL">PROBA-3</a> launched on 5 December 2024.<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a>
</p><p>Further planned satellites in the PROBA series include the limb sounder <a href="/facts/ALTIUS/b3LDoolT">ALTIUS</a>.
</p>
<h2 id="see-also">See also</h2>
<ul>
<li>Spaceflight portal</li></ul>
<ul><li><a href="/facts/Miniaturized_satellite/vXN5EwvX">Miniaturized satellite</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li><a href="http://earth.esa.int/proba/">http://earth.esa.int/proba/</a> <a href="https://web.archive.org/web/20120109232747/http://earth.esa.int/proba/">Archived</a> 2012-01-09 at the <a href="/facts/Wayback_Machine/nmQ3a6JC">Wayback Machine</a></li>
<li><a href="https://www.eoportal.org/satellite-missions/proba-1">PROBA-1 article on eoPortal by ESA</a></li>
<li><a href="https://www.eoportal.org/satellite-missions/proba-2">PROBA-2 article on eoPortal by ESA</a></li>
<li><a href="https://www.eoportal.org/satellite-missions/proba-3">PROBA-3 article on eoPortal by ESA</a></li>
<li><a href="https://www.eoportal.org/satellite-missions/proba-v">PROBA-V article on eoPortal by ESA</a></li>
<li><a href="https://www.eoportal.org/satellite-missions/proba-v-plus-one">PROBA-V plus one article on eoPortal by ESA</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Ramakrishnan, S.; Somanath, S.; Balakrishnan, S. S. (January 2002). "Multi-Orbit Mission by PSLV-C3 and Future Launch Opportunities". IAF Abstracts: 936. Bibcode:2002iaf..confE.936R. <a href="/wiki/Bibcode_(identifier)" target="_blank">/wiki/Bibcode_(identifier)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>"PSLV-C3". ISRO. 22 October 2001. Archived from the original on 25 March 2014. Retrieved 25 October 2021. <a href="https://web.archive.org/web/20140325082903/http://www.isro.org/pslv-c3/pslv-c3.aspx" target="_blank">https://web.archive.org/web/20140325082903/http://www.isro.org/pslv-c3/pslv-c3.aspx</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>"PROBA-1 - Overview". ESA. 11 December 2012. Retrieved 25 October 2021. <a href="https://www.esa.int/Applications/Observing_the_Earth/Proba-1/Overview" target="_blank">https://www.esa.int/Applications/Observing_the_Earth/Proba-1/Overview</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>"PROBA-1 (Project for On-Board Autonomy - 1)". www.eoportal.org. Retrieved 2022-12-28. <a href="https://www.eoportal.org/satellite-missions/proba-1#proba-1-project-for-on-board-autonomy---1" target="_blank">https://www.eoportal.org/satellite-missions/proba-1#proba-1-project-for-on-board-autonomy---1</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>"Proba-1 Celebrates 20th Birthday In Orbit". ESA. 22 October 2021. Retrieved 25 October 2021. <a href="https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Shaping_the_Future/Proba-1_Celebrates_20th_Birthday_In_Orbit" target="_blank">https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Shaping_the_Future/Proba-1_Celebrates_20th_Birthday_In_Orbit</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
<li id="fn:6"><p>"Proba-1 Celebrates 20th Birthday In Orbit". ESA. 22 October 2021. Retrieved 25 October 2021. <a href="https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Shaping_the_Future/Proba-1_Celebrates_20th_Birthday_In_Orbit" target="_blank">https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Shaping_the_Future/Proba-1_Celebrates_20th_Birthday_In_Orbit</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li>
<li id="fn:7"><p>"Proba-1 sets new record". ESA. 8 March 2018. Retrieved 11 March 2018. <a href="https://www.esa.int/Applications/Observing_the_Earth/Proba-1/Proba-1_sets_new_record" target="_blank">https://www.esa.int/Applications/Observing_the_Earth/Proba-1/Proba-1_sets_new_record</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li>
<li id="fn:8"><p>Werner, Debra (24 April 2024). "Major changes approved for ClearSpace-1 mission". SpaceNews. Retrieved 24 April 2024. <a href="https://spacenews.com/major-changes-approved-for-clearspace-1-mission/" target="_blank">https://spacenews.com/major-changes-approved-for-clearspace-1-mission/</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li>
<li id="fn:9"><p>"Eclipse-making double satellite Proba-3 enters orbit". www.esa.int. Retrieved 2025-02-19. <a href="https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Proba-3/Eclipse-making_double_satellite_Proba-3_enters_orbit#:~:text=A%20pair%20of%20spacecraft%20were,were%20one%20single%20giant%20spacecraft" target="_blank">https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Proba-3/Eclipse-making_double_satellite_Proba-3_enters_orbit#:~:text=A%20pair%20of%20spacecraft%20were,were%20one%20single%20giant%20spacecraft</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li>
</ol>

PROBA open-in-new

PROBA