NOTE:- Round Island boas, (also called Mauritius snakes and splitjaw snakes) are no longer regarded as Boas (Boidae family) and are now in the Bolyeriidae family. There were 2 species, one if which is believed to be extinct.
This is where the Shuttle and ISS conduct their operations. One complete orbit in LEO takes about 90 minutes. Satellites that seem to be attached to some location on Earth are in Geosynchronous Earth Orbit (GEO). These satellites orbit about 23,000 miles above the equator and complete one revolution around the Earth precisely every 24 hours. Satellites headed for GEO first go to an elliptical orbit with an apogee about 23,000 miles.
Depends on the Altitude of the Satellite. Most are around 90 minutes. The closer an object is to the Earth, the faster it must circle to balance the gravitational pull of the Earth. The closest satellites (~100+ km) are in in low Earth orbit (LEO); these can circle the Earth in as little as 90-100 minutes. Any lower than this and the atmosphere would quickly slow the object down so that it would fall back to Earth after relatively few orbits.