IOTA/IOTA-ES occultation update for (7065) Fredschaaf / TYC 5736-00383-1 event on 2024 Oct 29, 13:36 UT Visible from Summary ------- On 2024 Oct 29 UT, the 16.2191742234661 km diameter asteroid (7065) Fredschaaf will occult a 10.6 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.79 mag to 18.39 mag (the magnitude of the asteroid) for at most 0.700 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 99 * date and approx. time of event: 2024 Oct 29, 13:33 - 2024 Oct 29, 13:39 * geocentric midpoint of event [JD]: 2460613.06696671 * magnitude of target star: 10.60 * magnitude drop [mag]: 7.79 * estimated maximum duration [s]: 0.700 * Moon: 8 % sunlit, 111° distance * Sun: 79° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 25 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.001", 81°) * approx speed of asteroid's shadow [km/s]: 23.4003 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5736-00383-1 by 7065 Fredschaaf on 2024 Oct 29 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude - 20 0 0 46 4 31 13 33 27.0 0 111 30 45 57 19 46 11 45 45 54 1 46 15 4 .... - 19 0 0 45 48 24 13 33 27.0 1 112 30 45 41 11 45 55 37 45 37 53 45 58 56 -0.47 - 18 0 0 45 32 18 13 33 27.2 2 113 30 45 25 6 45 39 31 45 21 48 45 42 50 -0.77 - 17 0 0 45 16 15 13 33 27.3 2 113 30 45 9 3 45 23 27 45 5 46 45 26 46 -0.89 - 16 0 0 45 0 15 13 33 27.6 3 114 30 44 53 4 45 7 27 44 49 47 45 10 46 -0.95 - 15 0 0 44 44 19 13 33 27.9 4 115 31 44 37 8 44 51 30 44 33 51 44 54 49 -0.98 - 14 0 0 44 28 26 13 33 28.3 5 115 31 44 21 16 44 35 38 44 17 59 44 38 56 -1.01 - 13 0 0 44 12 38 13 33 28.8 5 116 31 44 5 29 44 19 49 44 2 12 44 23 7 -1.03 - 12 0 0 43 56 55 13 33 29.4 6 117 31 43 49 46 44 4 6 43 46 29 44 7 23 -1.04 - 11 0 0 43 41 17 13 33 30.0 7 118 31 43 34 8 43 48 27 43 30 52 43 51 45 -1.05 - 10 0 0 43 25 45 13 33 30.7 8 118 31 43 18 36 43 32 54 43 15 20 43 36 11 -1.06 - 9 0 0 43 10 18 13 33 31.5 8 119 31 43 3 10 43 17 27 42 59 55 43 20 44 -1.07 - 8 0 0 42 54 58 13 33 32.4 9 120 31 42 47 51 43 2 7 42 44 35 43 5 23 -1.07 - 7 0 0 42 39 45 13 33 33.3 10 120 31 42 32 38 42 46 53 42 29 23 42 50 10 -1.08 - 6 0 0 42 24 40 13 33 34.3 11 121 31 42 17 33 42 31 47 42 14 18 42 35 3 -1.08 - 5 0 0 42 9 42 13 33 35.4 12 122 31 42 2 36 42 16 49 41 59 21 42 20 5 -1.09 - 4 0 0 41 54 52 13 33 36.6 12 123 30 41 47 47 42 1 58 41 44 32 42 5 14 -1.09 - 3 0 0 41 40 11 13 33 37.8 13 123 30 41 33 6 41 47 17 41 29 52 41 50 32 -1.09 - 2 0 0 41 25 39 13 33 39.2 14 124 30 41 18 35 41 32 44 41 15 20 41 35 59 -1.10 - 1 0 0 41 11 16 13 33 40.6 15 125 30 41 4 12 41 18 21 41 0 58 41 21 36 -1.10 0 0 0 40 57 3 13 33 42.1 15 125 30 40 50 0 41 4 7 40 46 46 41 7 22 -1.10 1 0 0 40 43 0 13 33 43.6 16 126 30 40 35 57 40 50 4 40 32 44 40 53 18 -1.10 2 0 0 40 29 8 13 33 45.3 17 127 29 40 22 6 40 36 11 40 18 52 40 39 25 -1.11 3 0 0 40 15 26 13 33 47.0 18 128 29 40 8 25 40 22 29 40 5 12 40 25 43 -1.11 4 0 0 40 1 56 13 33 48.8 18 128 29 39 54 55 40 8 58 39 51 42 40 12 12 -1.11 5 0 0 39 48 37 13 33 50.6 19 129 29 39 41 37 39 55 39 39 38 25 39 58 52 -1.11 6 0 0 39 35 31 13 33 52.6 20 130 28 39 28 31 39 42 32 39 25 19 39 45 45 -1.11 7 0 0 39 22 37 13 33 54.6 21 131 28 39 15 37 39 29 37 39 12 26 39 32 50 -1.11 8 0 0 39 9 55 13 33 56.7 21 131 28 39 2 57 39 16 55 38 59 45 39 20 8 -1.12 9 0 0 38 57 27 13 33 58.8 22 132 27 38 50 29 39 4 26 38 47 17 39 7 39 -1.12 10 0 0 38 45 12 13 34 1.1 23 133 27 38 38 15 38 52 11 38 35 3 38 55 23 -1.12 11 0 0 38 33 11 13 34 3.4 23 134 27 38 26 14 38 40 9 38 23 3 38 43 21 -1.12 12 0 0 38 21 24 13 34 5.8 24 135 26 38 14 27 38 28 22 38 11 17 38 31 34 -1.12 13 0 0 38 9 52 13 34 8.2 25 135 26 38 2 55 38 16 49 37 59 45 38 20 0 -1.12 14 0 0 37 58 34 13 34 10.7 26 136 25 37 51 38 38 5 30 37 48 28 38 8 42 -1.12 15 0 0 37 47 31 13 34 13.3 26 137 25 37 40 36 37 54 27 37 37 26 37 57 38 -1.12 16 0 0 37 36 44 13 34 16.0 27 138 24 37 29 49 37 43 39 37 26 39 37 46 50 -1.12 17 0 0 37 26 12 13 34 18.7 28 139 24 37 19 18 37 33 7 37 16 8 37 36 18 -1.13 18 0 0 37 15 56 13 34 21.5 28 140 23 37 9 2 37 22 51 37 5 53 37 26 1 -1.13 19 0 0 37 5 56 13 34 24.3 29 141 23 36 59 3 37 12 50 36 55 54 37 16 1 -1.13 20 0 0 36 56 13 13 34 27.2 30 141 22 36 49 20 37 3 7 36 46 11 37 6 17 -1.13 21 0 0 36 46 47 13 34 30.2 30 142 22 36 39 54 36 53 40 36 36 45 36 56 50 -1.13 22 0 0 36 37 37 13 34 33.2 31 143 21 36 30 45 36 44 30 36 27 36 36 47 39 -1.13 23 0 0 36 28 44 13 34 36.3 31 144 21 36 21 53 36 35 36 36 18 44 36 38 46 -1.13 24 0 0 36 20 9 13 34 39.5 32 145 20 36 13 18 36 27 1 36 10 10 36 30 10 -1.13 25 0 0 36 11 51 13 34 42.6 32 146 20 36 5 1 36 18 43 36 1 53 36 21 52 -1.13 26 0 0 36 3 52 13 34 45.9 33 147 19 35 57 2 36 10 43 35 53 54 36 13 52 -1.13 27 0 0 35 56 11 13 34 49.2 34 148 18 35 49 21 36 3 1 35 46 13 36 6 10 -1.13 28 0 0 35 48 48 13 34 52.6 34 149 18 35 41 58 35 55 38 35 38 51 35 58 47 -1.13 29 0 0 35 41 43 13 34 56.0 35 150 17 35 34 54 35 48 33 35 31 47 35 51 42 -1.13 30 0 0 35 34 57 13 34 59.4 35 151 16 35 28 8 35 41 47 35 25 1 35 44 55 -1.14 31 0 0 35 28 30 13 35 2.9 36 152 16 35 21 41 35 35 19 35 18 34 35 38 28 -1.14 32 0 0 35 22 21 13 35 6.4 36 153 15 35 15 33 35 29 11 35 12 26 35 32 19 -1.14 33 0 0 35 16 32 13 35 10.0 37 155 14 35 9 44 35 23 21 35 6 37 35 26 29 -1.14 34 0 0 35 11 2 13 35 13.6 37 156 14 35 4 15 35 17 51 35 1 8 35 20 59 -1.14 35 0 0 35 5 52 13 35 17.3 37 157 13 34 59 5 35 12 41 34 55 58 35 15 48 -1.14 36 0 0 35 1 2 13 35 21.0 38 158 12 34 54 14 35 7 50 34 51 8 35 10 57 -1.14 37 0 0 34 56 31 13 35 24.7 38 159 12 34 49 44 35 3 18 34 46 37 35 6 26 -1.14 38 0 0 34 52 19 13 35 28.4 39 160 11 34 45 33 34 59 7 34 42 26 35 2 14 -1.14 39 0 0 34 48 28 13 35 32.2 39 161 10 34 41 42 34 55 16 34 38 36 34 58 23 -1.14 40 0 0 34 44 57 13 35 36.0 39 163 10 34 38 11 34 51 45 34 35 5 34 54 52 -1.14 41 0 0 34 41 46 13 35 39.9 39 164 9 34 35 0 34 48 33 34 31 54 34 51 40 -1.14 42 0 0 34 38 56 13 35 43.7 40 165 8 34 32 9 34 45 43 34 29 4 34 48 49 -1.14 43 0 0 34 36 25 13 35 47.6 40 166 7 34 29 39 34 43 12 34 26 33 34 46 19 -1.14 44 0 0 34 34 15 13 35 51.5 40 168 6 34 27 29 34 41 2 34 24 23 34 44 9 -1.14 45 0 0 34 32 25 13 35 55.4 40 169 6 34 25 40 34 39 12 34 22 34 34 42 19 -1.14 46 0 0 34 30 56 13 35 59.4 41 170 5 34 24 10 34 37 42 34 21 4 34 40 49 -1.14 47 0 0 34 29 47 13 36 3.3 41 171 4 34 23 1 34 36 33 34 19 56 34 39 40 -1.14 48 0 0 34 28 58 13 36 7.3 41 173 3 34 22 13 34 35 45 34 19 7 34 38 52 -1.14 49 0 0 34 28 31 13 36 11.3 41 174 3 34 21 45 34 35 17 34 18 39 34 38 24 -1.14 50 0 0 34 28 23 13 36 15.3 41 175 2 34 21 38 34 35 10 34 18 32 34 38 16 -1.14 51 0 0 34 28 37 13 36 19.2 41 177 1 34 21 51 34 35 23 34 18 45 34 38 30 -1.14 52 0 0 34 29 11 13 36 23.2 41 178 0 34 22 25 34 35 57 34 19 19 34 39 4 -1.14 53 0 0 34 30 5 13 36 27.2 41 179 -1 34 23 19 34 36 52 34 20 14 34 39 58 -1.15 54 0 0 34 31 20 13 36 31.2 41 181 -1 34 24 34 34 38 7 34 21 29 34 41 13 -1.15 55 0 0 34 32 55 13 36 35.2 41 182 -2 34 26 10 34 39 42 34 23 4 34 42 49 -1.15 56 0 0 34 34 51 13 36 39.2 41 183 -3 34 28 5 34 41 38 34 25 0 34 44 45 -1.15 57 0 0 34 37 8 13 36 43.2 41 185 -4 34 30 22 34 43 54 34 27 16 34 47 1 -1.15 58 0 0 34 39 44 13 36 47.1 41 186 -5 34 32 58 34 46 31 34 29 52 34 49 38 -1.15 59 0 0 34 42 41 13 36 51.1 41 187 -6 34 35 55 34 49 28 34 32 49 34 52 35 -1.15 60 0 0 34 45 58 13 36 55.0 40 188 -6 34 39 12 34 52 46 34 36 6 34 55 53 -1.15 61 0 0 34 49 35 13 36 58.9 40 190 -7 34 42 49 34 56 23 34 39 43 34 59 30 -1.15 62 0 0 34 53 33 13 37 2.9 40 191 -8 34 46 46 35 0 20 34 43 40 35 3 28 -1.15 63 0 0 34 57 50 13 37 6.7 40 192 -9 34 51 3 35 4 38 34 47 56 35 7 45 -1.15 64 0 0 35 2 27 13 37 10.6 40 193 -10 34 55 39 35 9 15 34 52 33 35 12 23 -1.15 65 0 0 35 7 23 13 37 14.4 39 195 -11 35 0 36 35 14 12 34 57 29 35 17 20 -1.15 66 0 0 35 12 40 13 37 18.3 39 196 -11 35 5 52 35 19 29 35 2 45 35 22 36 -1.15 67 0 0 35 18 15 13 37 22.1 39 197 -12 35 11 27 35 25 5 35 8 21 35 28 12 -1.15 68 0 0 35 24 11 13 37 25.8 38 198 -13 35 17 22 35 31 0 35 14 15 35 34 8 -1.15 69 0 0 35 30 25 13 37 29.5 38 199 -14 35 23 36 35 37 15 35 20 29 35 40 23 -1.15 70 0 0 35 36 58 13 37 33.2 38 201 -15 35 30 9 35 43 48 35 27 2 35 46 56 -1.15 71 0 0 35 43 50 13 37 36.9 37 202 -16 35 37 1 35 50 40 35 33 53 35 53 49 -1.15 72 0 0 35 51 1 13 37 40.5 37 203 -16 35 44 11 35 57 51 35 41 4 36 1 0 -1.15 73 0 0 35 58 30 13 37 44.1 36 204 -17 35 51 40 36 5 21 35 48 32 36 8 30 -1.15 74 0 0 36 6 17 13 37 47.6 36 205 -18 35 59 27 36 13 9 35 56 19 36 16 18 -1.15 75 0 0 36 14 23 13 37 51.1 35 206 -19 36 7 32 36 21 15 36 4 24 36 24 24 -1.15 76 0 0 36 22 46 13 37 54.6 35 207 -20 36 15 55 36 29 39 36 12 47 36 32 48 -1.15 77 0 0 36 31 27 13 37 58.0 34 208 -21 36 24 36 36 38 20 36 21 27 36 41 30 -1.15 78 0 0 36 40 26 13 38 1.4 34 209 -21 36 33 34 36 47 19 36 30 25 36 50 29 -1.15 79 0 0 36 49 42 13 38 4.7 33 210 -22 36 42 49 36 56 35 36 39 40 36 59 45 -1.15 80 0 0 36 59 15 13 38 7.9 33 211 -23 36 52 22 37 6 9 36 49 13 37 9 19 -1.15 81 0 0 37 9 4 13 38 11.1 32 212 -24 37 2 11 37 15 59 36 59 1 37 19 9 -1.15 82 0 0 37 19 10 13 38 14.3 32 213 -25 37 12 16 37 26 5 37 9 6 37 29 15 -1.15 83 0 0 37 29 32 13 38 17.4 31 214 -25 37 22 37 37 36 27 37 19 28 37 39 38 -1.15 84 0 0 37 40 10 13 38 20.4 30 215 -26 37 33 15 37 47 6 37 30 5 37 50 17 -1.15 85 0 0 37 51 3 13 38 23.4 30 216 -27 37 44 7 37 57 59 37 40 57 38 1 11 -1.15 86 0 0 38 2 12 13 38 26.3 29 217 -28 37 55 16 38 9 9 37 52 5 38 12 20 -1.15 87 0 0 38 13 35 13 38 29.2 29 218 -29 38 6 39 38 20 33 38 3 28 38 23 44 -1.15 88 0 0 38 25 13 13 38 32.0 28 219 -29 38 18 16 38 32 12 38 15 6 38 35 24 -1.15 89 0 0 38 37 6 13 38 34.7 27 220 -30 38 30 9 38 44 5 38 26 58 38 47 17 -1.15 90 0 0 38 49 13 13 38 37.3 27 221 -31 38 42 15 38 56 12 38 39 4 38 59 24 -1.15 91 0 0 39 1 33 13 38 39.9 26 222 -32 38 54 35 39 8 33 38 51 23 39 11 46 -1.15 92 0 0 39 14 7 13 38 42.5 25 222 -32 39 7 8 39 21 8 39 3 56 39 24 21 -1.15 93 0 0 39 26 54 13 38 44.9 25 223 -33 39 19 55 39 33 55 39 16 43 39 37 8 -1.15 94 0 0 39 39 54 13 38 47.3 24 224 -34 39 32 54 39 46 55 39 29 41 39 50 9 -1.15 95 0 0 39 53 6 13 38 49.7 23 225 -35 39 46 5 40 0 8 39 42 52 40 3 21 -1.15 96 0 0 40 6 30 13 38 51.9 22 226 -35 39 59 28 40 13 32 39 56 15 40 16 46 -1.15 97 0 0 40 20 5 13 38 54.1 22 227 -36 40 13 3 40 27 8 40 9 50 40 30 22 -1.15 98 0 0 40 33 52 13 38 56.2 21 227 -37 40 26 49 40 40 55 40 23 36 40 44 10 -1.15 99 0 0 40 47 49 13 38 58.2 20 228 -37 40 40 46 40 54 53 40 37 33 40 58 8 -1.15 100 0 0 41 1 57 13 39 0.2 20 229 -38 40 54 54 41 9 2 40 51 40 41 12 17 -1.15 101 0 0 41 16 15 13 39 2.1 19 230 -39 41 9 11 41 23 20 41 5 57 41 26 36 -1.15 102 0 0 41 30 43 13 39 3.9 18 230 -39 41 23 38 41 37 48 41 20 24 41 41 4 -1.15 103 0 0 41 45 20 13 39 5.6 17 231 -40 41 38 15 41 52 26 41 35 0 41 55 42 -1.15 104 0 0 42 0 6 13 39 7.3 17 232 -41 41 53 0 42 7 12 41 49 45 42 10 28 -1.15 105 0 0 42 15 0 13 39 8.9 16 233 -41 42 7 54 42 22 7 42 4 39 42 25 23 -1.16 106 0 0 42 30 2 13 39 10.4 15 233 -42 42 22 55 42 37 10 42 19 40 42 40 26 -1.16 107 0 0 42 45 12 13 39 11.8 14 234 -42 42 38 5 42 52 20 42 34 49 42 55 37 -1.16 108 0 0 43 0 29 13 39 13.2 14 235 -43 42 53 21 43 7 38 42 50 6 43 10 55 -1.16 109 0 0 43 15 53 13 39 14.5 13 236 -43 43 8 45 43 23 2 43 5 29 43 26 19 -1.16 110 0 0 43 31 23 13 39 15.7 12 236 -44 43 24 14 43 38 33 43 20 58 43 41 50 -1.16 111 0 0 43 46 59 13 39 16.8 11 237 -44 43 39 50 43 54 9 43 36 34 43 57 27 -1.16 112 0 0 44 2 41 13 39 17.9 11 238 -45 43 55 31 44 9 51 43 52 14 44 13 9 -1.16 113 0 0 44 18 27 13 39 18.9 10 239 -45 44 11 17 44 25 39 44 8 1 44 28 57 -1.16 114 0 0 44 34 19 13 39 19.8 9 239 -46 44 27 8 44 41 30 44 23 51 44 44 49 -1.17 115 0 0 44 50 14 13 39 20.6 8 240 -46 44 43 3 44 57 26 44 39 46 45 0 45 -1.17 116 0 0 45 6 14 13 39 21.4 8 241 -47 44 59 2 45 13 26 44 55 45 45 16 45 -1.17 117 0 0 45 22 17 13 39 22.0 7 241 -47 45 15 5 45 29 30 45 11 47 45 32 48 -1.18 118 0 0 45 38 22 13 39 22.7 6 242 -48 45 31 10 45 45 36 45 27 52 45 48 55 -1.18 119 0 0 45 54 31 13 39 23.2 5 243 -48 45 47 18 46 1 44 45 44 0 46 5 4 -1.18 120 0 0 46 10 41 13 39 23.7 5 244 -48 46 3 28 46 17 55 46 0 10 46 21 15 -1.19 121 0 0 46 26 53 13 39 24.1 4 244 -49 46 19 40 46 34 8 46 16 22 46 37 27 -1.20 122 0 0 46 43 7 13 39 24.4 3 245 -49 46 35 53 46 50 21 46 32 35 46 53 41 -1.22 123 0 0 46 59 21 13 39 24.6 2 246 -49 46 52 7 47 6 36 46 48 48 47 9 56 -1.24 124 0 0 47 15 36 13 39 24.8 2 247 -50 47 8 21 47 22 51 47 5 3 47 26 11 -1.28 125 0 0 47 31 50 13 39 24.9 1 247 -50 47 24 36 47 39 6 47 21 17 47 42 26 -1.39 126 0 0 47 48 5 13 39 25.0 0 248 -50 47 40 50 47 55 20 47 37 31 47 58 41 -2.22 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5736-00383-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 42 44.6958 DE: -14 33 01.912 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 42 44.6957 DE: -14 33 01.912 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.6 * B mag [mag]: 11.5 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (7065) Fredschaaf asteroid class: approx. diameter [km]: 16 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.74140 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 date of fit: 2023 Apr 25 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.013", 0.001", 81.184° remarks: * orbital elements for (7065)Fredschaaf : Mean anomaly = 301.7391065999 deg Arg. of pericenter = 178.5112122538 deg Long. of node = 199.1633766957 deg Inclination = 7.5272022238 deg Eccentricity = 0.0356398822 Semimajor axis = 2.7775418506 AU Perihelion dist = 2.6785505863 AU Mag: H = 12.99, G = 0.15 Epoch of elements : MJD 60612.56696638 TDT (2024 Oct 29.5670) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr25,0.70,2024,10,29,13.607201,-0.012618,0.751686,13.206014,0.216166,0.005616,0.001136,0.000000,0.000000 53.5504,-14.4923,-28.19,-13.73,False TYC 5736-00383-1,19.71241552,-14.5505311,11.52,10.60,10.10,0.1,0,,19.73564648,-14.4922837,7.79,7.84,0,0,0 7065,Fredschaaf,18.39,16.418,2.7414,0,0,2.917,0.70,,1.4,0 0,301.6184,2024,10,29,178.5112,199.1634,7.5272,0.03564,2.77754,2.67855,12.99,5.0,0.15 1.229,0.0130,0.0007,81,0.0019,Known errors,1.00,0,-1,-1 20241029_0383-1,60140.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org