Free Access

Table 2

Identified and suggested topographic features on Iris.

Crater λ ϕ Rotation phase Diameter (km) Diameter (km) Depth (km) Depth (km) dD
(°) (°) 0.03 0.47 0.59 0.72 (image) (model) (image) (model) (image)
Xanthos 0 −16 Y Y Y Y 38 ± 5 44 ± 5 13 ± 3 12 ± 2 0.34 ± 0.09
Erythros 255 −22 Y Y Y 31 ± 8
Cyanos 53 −25 Y Y Y 25 ± 5
Chloros 47 −40 n.d. Y Y Y 41 ± 6 62 ± 5 6 ± 2
Cirrhos 2 −34 n.d. Y Y Y 23 ± 5 31 ± 5 2 ± 2
Porphyra 202 −21 Y Y Y Y 35 ± 5
Chrysos 182 −14 Y n.i. n.i. Y 36 ± 9 37 ± 5 3 ± 2
Glaucos 164 −20 Y n.i. n.i. Y 30 ± 9 49 ± 5 6 ± 2
A 65 −21 n.d. A n.d. n.d. 23 ± 5 5 ± 3 0.22 ± 0.14
B 126 −2 Y - n.d. 35 ± 5 6 ± 3 0.17 ± 0.09
C 67 −65 n.i. Y n.i. n.i. (64×16) ± 5
D 105 −27 n.i. Y n.d. n.i. 21 ± 5
E 57 −15 Y 23 ± 5
F 18 −19 Y Y n.i. 27 ± 5
G 243 −5 Y Y Y 43 ± 8

Notes. We indicate for each epoch whether we clearly identified the feature (Y); if we probably identified it, but the contours were not well defined (n.d.); if we did not identify it (n.i.); or if the feature does not fall within the visible part of the surface (–). The uncertainties in the diameter (D) and depth (d) values were computed as their variance across the complete set of images in which they are visible, unless the variance is lower than 3 km. In that case the uncertainty was set to 3 km, which reflects a conservative approximation of the pixel size at the distance of Iris (~2.3 km). Moreover, we also included crater diameters and depths measured on the shape model. Their uncertainties reflect the resolution of the shape model.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.