Table A.1

OSIRIS/NAC observations used in this study.

April 2016 (UTC) NAC filters D(km) Res. (m px−1) αm (°) αminαmax (°) Longitude Latitude
09T12:15:17.916 All filters 47.0 ± 0.6 0.87 ± 0.05 60.6 59.5–61.7 149.89° −5.76°
09T23:01:09.919 F84, F82, F88 28.8 ± 0.2 0.54 ± 0.02 7.80 6.67–8.94 121.33° −17.09°
09T23:08:09.910 F84, F82, F88 28.8 ± 0.2 0.54 ± 0.02 6.99 5.85–8.14 118.12° −16.77°
09T23:14:09.894 F84, F82, F88 28.8 ± 0.2 0.54 ± 0.02 6.29 5.16–7.45 115.04° −16.64°
09T23:19:08.951 F84, F82, F88 28.8 ± 0.2 0.53 ± 0.02 5.72 4.58–6.87 112.54° −16.50°
09T23:22:09.905 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.02 5.37 4.23–6.53 111.24° −16.29°
09T23:25:09.886 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.02 5.02 3.88–6.19 109.92° −16.11°
09T23:28:09.912 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.02 4.68 3.53–5.85 108.70° −15.87°
09T23:31:09.942 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.01 4.34 3.19–5.50 107.51° −15.62°
09T23:34:09.904 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.01 3.99 2.84–5.18 106.47° −14.71°
09T23:37:09.883 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.01 3.65 2.48–4.88 105.35° −13.30°
09T23:40:09.927 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 3.30 2.10–4.58 104.30° −11.19°
09T23:43:09.884 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 2.94 1.69–4.26 103.33° −8.71°
09T23:46:09.901 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 2.57 1.25–3.93 102.74° −5.78°
09T23:49:09.982 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 2.19 0.80–3.56 103.48° −2.47°
09T23:52:10.005 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.82 0.39–3.17 104.65° 0.87°
09T23:55:09.984 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.48 0.095*–2.79 106.05° 3.32°
09T23:58:09.911 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.24 0.095*–2.47 107.85° 5.11°
10T00:01:09.929 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.21 0.095*–2.43 110.21° 5.88°
10T00:04:09.927 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.42 0.095*–2.72 112.57° 5.78°
10T00:07:10.009 F84, F82, F88 28.6 ± 0.1 0.53 ± 0.01 1.75 0.31–3.09 114.98° 4.60°
10T00:10:09.944 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.01 2.11 0.70–3.49 117.11° 2.31°
10T00:13:10.092 F84, F82, F88 28.7 ± 0.1 0.53 ± 0.01 2.48 1.14–3.85 118.13° −0.52°
10T00:16:08.998 F84, F82, F88 28.8 ± 0.1 0.53 ± 0.01 2.84 1.57–4.18 118.36° −3.40°
10T00:19:09.893 F84, F82, F88 28.8 ± 0.1 0.54 ± 0.01 3.19 1.98–4.48 117.89° −6.17°
10T00:22:09.912 F84, F82, F88 28.8 ± 0.2 0.54 ± 0.01 3.54 2.36–4.78 116.89° −8.22°
10T00:25:09.908 F84, F82, F88 28.9 ± 0.2 0.54 ± 0.02 3.88 2.72–5.08 115.50° −9.78°
10T00:28:09.931 F84, F82, F88 28.9 ± 0.2 0.54 ± 0.02 4.21 3.06–5.38 113.83° −10.48°
10T00:31:09.977 F84, F82, F88 28.9 ± 0.2 0.54 ± 0.02 4.54 3.40–5.71 112.01° −10.51°
10T00:34:09.905 F84, F82, F88 28.9 ± 0.2 0.54 ± 0.02 4.88 3.73–6.04 110.17° −10.44°
10T00:37:09.911 F84, F82, F88 28.9 ± 0.2 0.54 ± 0.02 5.21 4.07–6.37 108.31° −10.26°
10T00:40:09.924 F84, F82, F88 29.0 ± 0.2 0.54 ± 0.02 5.54 4.40–6.70 106.39° −9.98°
10T00:43:09.896 F84, F82, F88 29.0 ± 0.2 0.54 ± 0.02 5.87 4.74–7.03 104.49° −9.66°
10T00:46:09.944 F84, F82, F88 29.0 ± 0.2 0.54 ± 0.02 6.21 5.07–7.46 102.60° −9.41°
10T11:50:16.568 All filters 53.8 ± 0.5 1.00 ± 0.05 51.2 49.9–52.2 87.31° −14.82°

Notes. Here, D is the median distance between spacecraft to imaged surface, αm is the median phase angle, and the next column gives the amplitude of the phase angle values. The longitudes and latitudes are those of the NAC boresight in the Cheops frame (see the main text for details).

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