HST CELL OPTICAL INVESTIGATION craters marked with < > are not included in flux calculations CELL ID Crater Front/back Visual search Maximum SEM search at 500 X Coordinates reference Spall diameter Pit diameter Depth Conchoidal diam. Dco Pit diameter X Y (µm) (µm) (µm) (µm) (µm) (cm) (cm) I Z5 D c1 195 80 16 160 36 3 0.73 c2 100 10 70 25 3.07 0.98 c3 40 6 32 9 2.85 0.25 <1700> <340> <114> <1600> <250> <5.02> <0.72> <340> <50> <16> <350> <62> <4.99> <0.33> I V16 D c1 39 5 40 30x15 2.05 0.3 III N2 E c1 350 40 30 325 50 1.42 1.5 I Y25 E c1 1000 400 110 1000 400x260 0.4 0.68 II B4 E c 620 80 75 600 66 3.01 1.54 i 455 66 37 467 75 1.47 0.9 j 230 40 30 223 43 0.48 0.82 I Z37 E <625> <90> <600> <1.87> <1.69> c2 260 40 18 167 50 1.18 0.47 c3 130 80 20 120 22 2.72 2.02 I L2 E c1 1125 660 120 1100 700x500 1.19 1.9 II A14 E <5200> <260> <300> III B4 E c1 340 53 26 <3750> no crater I Z41 E <1550> <400> <65> Munich data from here on: e= elongated crater (one axis longer by more than 10%) III D38/39 D 1 e 35 III C38/39 D 1 e 37 7 2 e 46 14 3 163 38 4 24 9 5 e 36 10 6 e 31 5 7 e 33 6 8 e 28 8 9 23 3 10 e 34 5 III B38/39 D 1 26 6 2 e 100 25 3 e 22 4 e 54 5 68 18 III D40/41 D 1 51 14 2 36 8 3 205 39 4 e 188 45 5 e 29 8 III D42/43 D 1 e 50 26 2 e 120 38 3 43 11 4 e 42 5 31 10 III C42/43 D 1 16 2 17 6 3 e 21 5 4 131 31 5 44 11 6 43 13 7 22 III B42/43 D 1 e 38 13 2 44 4 3 e 40 10 4 89 22 5 29 8 III D44/45 D 1 68 13 2 115 15 3 34 12 4 e 52 13 III C44/45 D 1 e 71 13 2 205 30 3 49 15 4 17 7 5 93 33 III B44/45 D 1 81 21 2 12 3 3 34 13 4 125 26 5 260 40 6 e 86 14 III Y11/12 D 1 76 17 2 e 31 10 3 e 45 13 4 e 26 12 III Y7/8 D 1 e 54 10 2 e 13 3 3 28 10 4 e 9 5 5 e 662 170 6 12 3 7 89 20 8 59 16 III D5/6 E 1 17 4 2 13 4 3 59 16 4 38 8 III X3/4 D 1 e 113 27 2 28 7 3 22 5 4 e 33 7 5 32 11 6 e 33 9 III W3/4 D 1 43 10 2 15 3 3 38 9 4 105 21 5 16 6 6 31 9 III W7/8 D 1 e 22 4 III W5/6 D 1 e 58 15 2 44 13 3 38 12 4 20 5 e 26 8 6 20 5 7 e 15 8 e 300 65 9 220 19 III W9/10 D 1 28 13 2 e 17 7 3 20 5 4 51 15 5 110 29 III W11/12 D 1 83 14 2 37 14 3 29 4 III Z5/6 D 1 28 14 2 e 22 8 3 529 71 4 e 34 3 I A35/36 D 1 e 45 17 2 e 58 23 3 114 22 I B35/36 D 1 37 11 2 e 32 13 3 e 68 21 I A37/38 D 1 e 25 11 2 e 28 6 3 27 7 4 71 26 I B37/38 D 1 e 39 16 2 160 46 3 10 2 4 e 43 10 I A39/40 D 1 35 2 56 21 3 41 16 4 32 13 5 95 26 6 e 63 19 7 e 46 19 I B39/40 D 1 e 21 9 2 e 30 8 3 e 28 10 4 75 17 5 43 16 6 e 19 5 I A41/42 D 1 17 6 2 e 22 5 I B41/42 D 1 207 43 2 e 56 15 3 26 11 4 208 45 5 32 10 6 20 8 7 14 4 8 17 8 9 37 11 10 38 18 I A43/44 D 1 57 22 2 40 19 3 21 9 4 27 12 5 13 5 I B43/44 D 1 139 43 2 126 30 3 26 5 4 22 10