This article needs additional citations for verification. (December 2009)
"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 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.
- Luo, Xin; Wang, Maocai; Dai, Guangming; Chen, Xiaoyu (2017). "A Novel Technique to Compute the Revisit Time of Satellites and Its Application in Remote Sensing Satellite Optimization Design". International Journal of Aerospace Engineering. 2017: 1–9. doi:10.1155/2017/6469439. ISSN 1687-5966.