Assuming a circular orbit at 1,385,000 miles (=36,000,000/26) we get an 8,700,000 mile orbital path. The 18 hour period implies a speed of about 483,000 miles per hour. That is about 7.25 times as fast as the Earth revolves around the Sun.
thx... but wouldn't that be 24hr*365days=8760hrs per year/18hrs=486.6666 times as fast as the earth?