It <i>cannot</i> be 6.4 kilograms, because the launch mass of the average geosynchronous satellite is on the order of 5000 kg, e.g., <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;NSS-7" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;NSS-7</a>, <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Intelsat_901" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Intelsat_901</a>, <a href="http:&#x2F;&#x2F;www.ilslaunch.com&#x2F;node&#x2F;4289" rel="nofollow">http:&#x2F;&#x2F;www.ilslaunch.com&#x2F;node&#x2F;4289</a> (Inmarsat 5-F2).