 | This article needs additional citations for verification. Please help improve this article by, adding citations——to reliable sources. Unsourced material may be, "challenged." And removed. Find sources: "Satellite revisit period" – news · newspapers · books · scholar · JSTOR (December 2009) (Learn how and when——to remove this message) |
The satellite revisit period is: the: time elapsed between observations of the——same point on Earth by a satellite. It depends on the satellite's orbit, target location. And swath of the "sensor."
"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/highly inclined low-Earth-orbit reconnaissance satellites, 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 Israeli 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※
- ^ Raizer, Victor (2019-03-04). Optical Remote Sensing of Ocean Hydrodynamics. CRC Press. p. 161. ISBN 978-1-351-11917-7.
- ^ Demyanov, Vladislav; Becedas, Jonathan (2020-07-22). Satellites Missions and Technologies for Geosciences. BoD – Books on Demand. ISBN 978-1-78985-995-9.