Table 1. - Positions of Skiles sea ice prediction locations. Longitudes are east from the
Prime Meridian. Accuracy of latitudes and longitudes is plus or minus 8 seconds of arc.
| Point No. | Latitude | Longitude |
| 1 | 48.88 | 299.98 |
| 2 | 46.24 | 308.61 |
| 3 | 54.46 | 280.00 |
| 4 | 50.57 | 306.57 |
| 5 | 49.02 | 310.96 |
| 6 | 47.27 | 314.99 |
| 7 | 57.63 | 273.66 |
| 8 | 57.82 | 280.00 |
| 9 | 56.18 | 298.43 |
| 10 | 54.97 | 303.96 |
| 11 | 53.48 | 309.05 |
| 12 | 51.76 | 313.69 |
| 13 | 49.86 | 317.88 |
| 14 | 60.39 | 265.96 |
| 15 | 61.03 | 272.88 |
| 16 | 61.24 | 280.00 |
| 17 | 61.03 | 287.12 |
| 18 | 60.39 | 294.04 |
| 19 | 59.37 | 300.56 |
| 20 | 58.01 | 306.57 |
| 21 | 56.36 | 312.01 |
| 22 | 54.46 | 316.87 |
| 23 | 64.46 | 271.87 |
| 24 | 64.71 | 280.00 |
| 25 | 64.46 | 288.13 |
| 26 | 63.74 | 295.95 |
| 27 | 62.57 | 303.20 |
| 28 | 61.03 | 309.74 |
| 29 | 59.18 | 315.54 |
| 30 | 57.08 | 320.60 |
| 31 | 67.08 | 261.57 |
| 32 | 67.94 | 270.54 |
| 33 | 68.23 | 280.00 |
| 34 | 67.08 | 298.43 |
| 35 | 65.73 | 306.57 |
| 36 | 63.98 | 313.69 |
| 37 | 61.90 | 319.81 |
| 38 | 59.58 | 325.00 |
| 39 | 68.83 | 249.04 |
| 40 | 70.42 | 258.20 |
| 41 | 71.44 | 268.69 |
| 42 | 71.79 | 280.00 |
| 43 | 71.44 | 291.31 |
| 44 | 70.42 | 301.80 |
| 45 | 64.46 | 325.00 |
| 46 | 61.90 | 330.19 |
| 47 | 69.45 | 235.00 |
| 48 | 71.79 | 243.13 |
| 49 | 73.69 | 253.44 |
| 50 | 74.95 | 265.96 |
| 51 | 75.39 | 280.00 |
| 52 | 74.95 | 294.04 |
| 53 | 73.69 | 306.57 |
| 54 | 66.81 | 331.34 |
| 55 | 63.98 | 336.31 |
| 56 | 68.83 | 220.96 |
| 57 | 71.79 | 226.87 |
| 58 | 74.51 | 235.00 |
| 59 | 76.82 | 246.31 |
| 60 | 78.43 | 261.57 |
| 61 | 79.02 | 280.00 |
| 62 | 71.79 | 333.13 |
| 63 | 68.83 | 339.04 |
| 64 | 65.73 | 343.43 |
| 65 | 62.57 | 346.80 |
| 66 | 70.42 | 211.80 |
| 67 | 73.69 | 216.57 |
| 68 | 76.82 | 223.69 |
| 69 | 79.64 | 235.00 |
| 70 | 81.80 | 253.44 |
| 71 | 82.67 | 280.00 |
| 72 | 81.80 | 306.57 |
| 73 | 76.82 | 336.31 |
| 74 | 73.69 | 343.43 |
| 75 | 70.42 | 348.20 |
| 76 | 67.08 | 351.57 |
| 77 | 54.30 | 195.71 |
| 78 | 57.63 | 196.34 |
| 79 | 61.03 | 197.12 |
| 80 | 64.46 | 198.13 |
| 81 | 67.94 | 199.46 |
| 82 | 71.44 | 201.31 |
| 83 | 74.95 | 204.04 |
| 84 | 78.43 | 208.44 |
| 85 | 81.80 | 216.56 |
| 86 | 84.81 | 235.00 |
| 87 | 86.33 | 280.00 |
| 88 | 84.81 | 325.00 |
| 89 | 81.80 | 343.43 |
| 90 | 78.43 | 351.57 |
| 91 | 74.95 | 355.96 |
| 92 | 71.44 | 358.69 |
| 93 | 54.46 | 190.00 |
| 94 | 57.82 | 190.00 |
| 95 | 61.24 | 190.00 |
| 96 | 64.71 | 190.00 |
| 97 | 68.23 | 190.00 |
| 98 | 71.79 | 190.00 |
| 99 | 75.39 | 190.00 |
| 100 | 79.02 | 190.00 |
| 101 | 82.67 | 190.00 |
| 102 | 86.33 | 190.00 |
| 103 | 90.00 | 280.00 |
| 104 | 86.33 | 010.00 |
| 105 | 82.67 | 010.00 |
| 106 | 79.02 | 010.00 |
| 107 | 75.39 | 010.00 |
| 108 | 71.79 | 010.00 |
| 109 | 57.82 | 010.00 |
| 110 | 54.46 | 010.00 |
| 111 | 54.30 | 184.29 |
| 112 | 57.63 | 183.66 |
| 113 | 61.03 | 182.88 |
| 114 | 64.46 | 181.87 |
| 115 | 67.94 | 180.54 |
| 116 | 71.44 | 178.69 |
| 117 | 74.95 | 175.96 |
| 118 | 78.43 | 171.56 |
| 119 | 81.80 | 163.44 |
| 120 | 84.81 | 145.00 |
| 121 | 86.33 | 100.00 |
| 122 | 84.81 | 055.00 |
| 123 | 81.80 | 036.57 |
| 124 | 78.43 | 028.43 |
| 125 | 74.95 | 024.04 |
| 126 | 71.44 | 021.31 |
| 127 | 61.03 | 017.12 |
| 128 | 57.63 | 016.34 |
| 129 | 54.30 | 015.71 |
| 130 | 53.80 | 178.69 |
| 131 | 57.08 | 177.47 |
| 132 | 60.39 | 175.96 |
| 133 | 70.42 | 168.20 |
| 134 | 73.69 | 163.44 |
| 135 | 76.82 | 156.31 |
| 136 | 79.64 | 145.00 |
| 137 | 81.80 | 126.56 |
| 138 | 82.67 | 100.00 |
| 139 | 81.80 | 073.43 |
| 140 | 79.64 | 055.00 |
| 141 | 76.82 | 043.69 |
| 142 | 73.69 | 036.56 |
| 143 | 70.42 | 031.80 |
| 144 | 63.74 | 025.95 |
| 145 | 60.39 | 024.04 |
| 146 | 57.08 | 022.53 |
| 147 | 56.18 | 171.56 |
| 148 | 59.37 | 169.44 |
| 149 | 71.79 | 153.13 |
| 150 | 74.51 | 145.00 |
| 151 | 76.82 | 133.69 |
| 152 | 78.43 | 118.44 |
| 153 | 79.02 | 100.00 |
| 154 | 78.43 | 081.56 |
| 155 | 76.82 | 066.31 |
| 156 | 74.51 | 055.00 |
| 157 | 71.79 | 046.87 |
| 158 | 68.83 | 040.96 |
| 159 | 65.73 | 036.57 |
| 160 | 59.37 | 030.56 |
| 161 | 54.97 | 166.04 |
| 162 | 58.01 | 163.44 |
| 163 | 61.02 | 160.26 |
| 164 | 71.79 | 136.87 |
| 165 | 73.69 | 126.56 |
| 166 | 74.95 | 114.04 |
| 167 | 74.95 | 085.96 |
| 168 | 73.69 | 073.43 |
| 169 | 71.79 | 063.13 |
| 170 | 69.45 | 055.00 |
| 171 | 66.81 | 048.66 |
| 172 | 45.87 | 028.43 |
| 173 | 42.90 | 027.10 |
| 174 | 53.48 | 160.95 |
| 175 | 59.18 | 154.46 |
| 176 | 70.42 | 078.20 |
| 177 | 68.83 | 069.04 |
| 178 | 66.81 | 061.34 |
| 179 | 44.77 | 032.62 |
| 180 | 41.89 | 031.04 |
| 181 | 49.02 | 159.04 |
| 182 | 51.76 | 156.31 |
| 183 | 54.46 | 153.13 |
| 184 | 57.08 | 149.40 |
| 185 | 59.58 | 145.00 |
| 186 | 46.24 | 038.61 |
| 187 | 43.47 | 036.57 |
| 188 | 47.27 | 155.01 |
| 189 | 49.86 | 152.12 |
| 190 | 52.38 | 148.81 |
| 191 | 54.80 | 145.00 |
| 192 | 57.08 | 140.60 |
| 193 | 45.37 | 151.34 |
| 194 | 47.80 | 148.37 |
| 195 | 50.14 | 145.00 |
| 196 | 52.38 | 141.19 |
| 197 | 54.46 | 136.87 |
| 198 | 43.35 | 148.01 |
| 199 | 45.62 | 145.00 |
| 200 | 47.80 | 141.63 |
| 201 | 45.37 | 138.66 |
| 202 | 42.90 | 136.03 |
| 203 | 40.39 | 133.69 |
| 204 | 42.00 | 130.26 |
| 205 | 39.36 | 128.30 |
| 206 | 37.96 | 123.20 |
| 207 | 39.05 | 119.65 |