Its moon Phobos orbits the planet in 7 hours, rises in the west, & sets in the east
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Because it is just above Areosynchronous orbit, it has a period only a few hours 
longer... [DOC] [TLE] Question 'Is it true that the Mars moon Phobos orbits faster around ... [PAR] Phobos takes only 7 hours, 39 minutes to complete one orbit of Mars.