Table 3
Effects of camera distortion on the satellite’s measured limb (made on 100 images of Mimas and Enceladus).
| ⟨ Δs ⟩ | ⟨ Δl ⟩ | σΔs | σΔl | |
| (pixels) | (pixels) | (pixels) | (pixels) | |
|
|
||||
| With minus without distortion correction | −0.011 | −0.022 | 0.032 | 0.033 |
| ⟨O–C⟩ (without distortion correction) | 0.184 | 0.712 | 1.020 | 0.869 |
| ⟨O–C⟩ (with distortion correction) | 0.196 | 0.735 | 1.018 | 0.878 |
Notes.“With distortion” means that the distortion effect was included in limb measurement, “Without distortion” means that no distortion effect added on limb measurement. The first line shows a comparison between satellite positions when adding this effect and removing it. The last two lines show the comparison between the observed positions (with and without adding the distortion to limb measurement) to SAT317 ephemeris predictions.
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