Table 2
Results of polarimetric observations of the bright side of Iapetus.
| Date | |||||||
| (yyyy mm dd) | Time (UT) (hh:mm) | Exp (sec) | α (°) | Filter |  (%) |
 (%) |
Ob-lon (°) |
|
|
|||||||
| 2009-04-04 | 05:04–05:19 | 20 × 16 | 2.90 | B | −0.46 ± 0.02 | 0.00 ± 0.02 | 271.36 |
| V | −0.50 ± 0.02 | 0.00 ± 0.02 | |||||
| R | −0.53 ± 0.02 | −0.01 ± 0.02 | |||||
| I | −0.58 ± 0.02 | −0.02 ± 0.02 | |||||
| 2010-02-22 | 04:11–04:29 | 40 × 16 | 3.0 | B | −0.42 ± 0.02 | 0.00 ± 0.02 | 284.86 |
| V | −0.46 ± 0.02 | −0.02 ± 0.02 | |||||
| R | −0.49 ± 0.02 | −0.03 ± 0.02 | |||||
| I | −0.51 ± 0.02 | −0.02 ± 0.02 | |||||
| 2010-05-04 | 00:02–00:51 | 50 × 16 | 4.31 | B | −0.26 ± 0.02 | 0.04 ± 0.02 | 251.13 |
| V | −0.26 ± 0.02 | 0.02 ± 0.02 | |||||
| R | −0.25 ± 0.02 | −0.01 ± 0.02 | |||||
| I | −0.23 ± 0.02 | −0.04 ± 0.02 | |||||
| 2010-07-25 | 23:55–00:37 | 50 × 16 | 5.20 | B | −0.27 ± 0.03 | 0.00 ± 0.03 | 261.40 |
| V | −0.26 ± 0.03 | −0.02 ± 0.03 | |||||
| R | −0.24 ± 0.03 | −0.04 ± 0.03 | |||||
| I | −0.22 ± 0.03 | −0.05 ± 0.03 | |||||
| 2011-03-28 | 08:07–09:33 | 20 × 16 | 0.77 | B | −0.86 ± 0.03 | 0.00 ± 0.03 | 285.26 |
| V | −0.86 ± 0.02 | 0.00 ± 0.02 | |||||
| R | −0.85 ± 0.02 | 0.00 ± 0.02 | |||||
| I | −0.84 ± 0.02 | 0.00 ± 0.02 | |||||
Notes. The table includes the epoch of the observations (date and UT time), the exposure time, the phase angle, the measured Stokes parameters and (with respect to the scattering plane), and the longitude of the sub-Earth point. Measurements in different filter bands were obtained after applying Eq. (12) of Fossati et al. (2007).
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