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((More citations needed|date=December 2009))
The '''satellite revisit period''' is the time elapsed between observations of the same point on Earth by a [[satellite]].<ref name=":0">((Cite book |last=Raizer |first=Victor |url=https://books.google.com/books?id=VtqMDwAAQBAJ&dq=%22Satellite+revisit+time%22&pg=PA161 |title=Optical Remote Sensing of Ocean Hydrodynamics |date=2019-03-04 |publisher=CRC Press |isbn=978-1-351-11917-7 |pages=161 |language=en))</ref><ref>((Cite book |last1=Demyanov |first1=Vladislav |url=https://books.google.com/books?id=-mD9DwAAQBAJ&dq=%22Satellite+revisit+time%22&pg=PA115 |title=Satellites Missions and Technologies for Geosciences |last2=Becedas |first2=Jonathan |date=2020-07-22 |publisher=BoD – Books on Demand |isbn=978-1-78985-995-9 |language=en))</ref> It depends on the satellite's [[orbit]], target location, and [[Swathe|swath]] of the sensor.<ref name=":0" />

"Revisit" is related to the same [[ground trace]], a projection of the satellite's orbit on to the Earth.  Revisit requires a very close repeat of the ground trace.   In the case of [[polar orbit]] or [[Orbital inclination|highly inclined]] [[low Earth orbit]] [[reconnaissance satellite]]s, the sensor must have the variable swath, to look longitudinally (east-west, or sideways) at a target, in addition to direct overflight observation, looking [[nadir]]. 

In the case of the [[Israel]]i [[EROS (satellite)|EROS]] Earth observation satellite, the ground trace repeat is 15 days, but the actual revisit time is 3 days, because of the swath ability of the camera payload.

==See also==
*[[Orbit period]]
* [[Satellite watching]], spotting satellites in the sky as they pass

==References==
<references />

((DEFAULTSORT:Satellite Revisit))
[[Category:Satellites]]
[[Category:Orbits]]

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