IOTA/IOTA-ES occultation update for (2527) Gregory / UCAC4 538-006095 event on 2024 Jul 11, 22:27 UT Visible from Summary ------- On 2024 Jul 11 UT, the 14.359 km diameter asteroid (2527) Gregory will occult a 11.9 mag star in the constellation Aries for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.01 mag to 17.95 mag (the magnitude of the asteroid) for at most 0.410 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: 98 * date and approx. time of event: 2024 Jul 11, 22:24 - 2024 Jul 11, 22:29 * geocentric midpoint of event [JD]: 2460503.43560713 * magnitude of target star: 11.94 * magnitude drop [mag]: 6.01 * estimated maximum duration [s]: 0.410 * Moon: 31 % sunlit, 125° distance * Sun: 58° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.34 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.003", 80°) * approx speed of asteroid's shadow [km/s]: 35.2949 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 538-006095 by 2527 Gregory on 2024 Jul 11 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 49 0 0 15 29 46 22 24 38.2 1 72 -46 15 25 4 15 34 28 15 21 52 15 37 41 .... 50 0 0 15 49 15 22 24 38.3 2 72 -45 15 44 32 15 53 57 15 41 20 15 57 10 -0.47 51 0 0 16 9 2 22 24 38.5 3 73 -44 16 4 19 16 13 45 16 1 6 16 16 58 -0.50 52 0 0 16 29 6 22 24 38.7 4 73 -44 16 24 23 16 33 50 16 21 10 16 37 3 -0.52 53 0 0 16 49 28 22 24 38.9 5 73 -43 16 44 44 16 54 12 16 41 31 16 57 26 -0.53 54 0 0 17 10 7 22 24 39.3 6 73 -42 17 5 22 17 14 52 17 2 9 17 18 6 -0.53 55 0 0 17 31 2 22 24 39.7 7 74 -41 17 26 17 17 35 47 17 23 3 17 39 2 -0.54 56 0 0 17 52 13 22 24 40.2 8 74 -40 17 47 28 17 56 59 17 44 13 18 0 14 -0.54 57 0 0 18 13 39 22 24 40.7 9 74 -39 18 8 54 18 18 26 18 5 39 18 21 41 -0.54 58 0 0 18 35 21 22 24 41.3 10 75 -38 18 30 34 18 40 7 18 27 19 18 43 23 -0.54 59 0 0 18 57 17 22 24 41.9 11 75 -38 18 52 30 19 2 4 18 49 14 19 5 19 -0.55 60 0 0 19 19 26 22 24 42.7 12 75 -37 19 14 39 19 24 14 19 11 23 19 27 30 -0.55 61 0 0 19 41 49 22 24 43.5 13 76 -36 19 37 1 19 46 37 19 33 45 19 49 54 -0.55 62 0 0 20 4 25 22 24 44.3 14 76 -35 19 59 37 20 9 13 19 56 20 20 12 30 -0.55 63 0 0 20 27 13 22 24 45.2 15 77 -34 20 22 24 20 32 1 20 19 7 20 35 19 -0.55 64 0 0 20 50 12 22 24 46.2 16 77 -33 20 45 23 20 55 1 20 42 6 20 58 19 -0.55 65 0 0 21 13 23 22 24 47.2 17 77 -32 21 8 33 21 18 12 21 5 16 21 21 30 -0.55 66 0 0 21 36 43 22 24 48.3 18 78 -31 21 31 54 21 41 34 21 28 36 21 44 52 -0.55 67 0 0 22 0 14 22 24 49.5 19 78 -30 21 55 24 22 5 5 21 52 6 22 8 23 -0.55 68 0 0 22 23 54 22 24 50.7 20 79 -29 22 19 3 22 28 45 22 15 45 22 32 4 -0.55 69 0 0 22 47 43 22 24 51.9 21 79 -28 22 42 52 22 52 34 22 39 33 22 55 53 -0.55 70 0 0 23 11 39 22 24 53.3 22 80 -27 23 6 48 23 16 31 23 3 29 23 19 50 -0.55 71 0 0 23 35 43 22 24 54.6 23 80 -26 23 30 51 23 40 35 23 27 32 23 43 54 -0.55 72 0 0 23 59 54 22 24 56.1 24 81 -25 23 55 1 24 4 46 23 51 42 24 8 5 -0.55 73 0 0 24 24 10 22 24 57.6 25 81 -24 24 19 18 24 29 3 24 15 58 24 32 22 -0.55 74 0 0 24 48 32 22 24 59.1 26 82 -24 24 43 39 24 53 25 24 40 20 24 56 45 -0.55 75 0 0 25 12 58 22 25 0.7 27 82 -23 25 8 5 25 17 52 25 4 46 25 21 12 -0.55 76 0 0 25 37 29 22 25 2.3 28 83 -22 25 32 36 25 42 23 25 29 16 25 45 43 -0.55 77 0 0 26 2 3 22 25 4.0 29 83 -21 25 57 9 26 6 57 25 53 49 26 10 17 -0.55 78 0 0 26 26 40 22 25 5.8 30 84 -20 26 21 46 26 31 34 26 18 25 26 34 54 -0.55 79 0 0 26 51 18 22 25 7.6 30 85 -19 26 46 24 26 56 12 26 43 4 26 59 33 -0.55 80 0 0 27 15 58 22 25 9.4 31 85 -18 27 11 4 27 20 53 27 7 43 27 24 14 -0.55 81 0 0 27 40 39 22 25 11.3 32 86 -17 27 35 44 27 45 33 27 32 24 27 48 55 -0.55 82 0 0 28 5 19 22 25 13.2 33 87 -16 28 0 25 28 10 14 27 57 4 28 13 35 -0.56 83 0 0 28 29 59 22 25 15.1 34 87 -15 28 25 4 28 34 54 28 21 43 28 38 15 -0.56 84 0 0 28 54 37 22 25 17.1 35 88 -14 28 49 42 28 59 32 28 46 21 29 2 53 -0.56 85 0 0 29 19 13 22 25 19.2 36 89 -13 29 14 18 29 24 9 29 10 57 29 27 30 -0.56 86 0 0 29 43 47 22 25 21.2 37 90 -12 29 38 52 29 48 43 29 35 31 29 52 4 -0.56 87 0 0 30 8 18 22 25 23.4 38 90 -11 30 3 23 30 13 13 30 0 2 30 16 35 -0.56 88 0 0 30 32 45 22 25 25.5 39 91 -10 30 27 49 30 37 40 30 24 28 30 41 2 -0.56 89 0 0 30 57 7 22 25 27.7 39 92 -9 30 52 11 31 2 2 30 48 50 31 5 24 -0.56 90 0 0 31 21 24 22 25 29.9 40 93 -8 31 16 28 31 26 19 31 13 7 31 29 41 -0.56 91 0 0 31 45 35 22 25 32.1 41 94 -7 31 40 39 31 50 30 31 37 18 31 53 52 -0.56 92 0 0 32 9 39 22 25 34.4 42 95 -6 32 4 44 32 14 35 32 1 23 32 17 56 -0.56 93 0 0 32 33 37 22 25 36.7 43 96 -5 32 28 42 32 38 32 32 25 21 32 41 54 -0.56 94 0 0 32 57 27 22 25 39.0 43 97 -4 32 52 32 33 2 22 32 49 11 33 5 44 -0.56 95 0 0 33 21 9 22 25 41.3 44 98 -4 33 16 14 33 26 4 33 12 53 33 29 25 -0.56 96 0 0 33 44 42 22 25 43.7 45 99 -3 33 39 47 33 49 37 33 36 26 33 52 58 -0.56 97 0 0 34 8 6 22 25 46.1 46 100 -2 34 3 11 34 13 0 33 59 50 34 16 22 -0.56 98 0 0 34 31 20 22 25 48.5 47 101 -1 34 26 25 34 36 14 34 23 4 34 39 35 -0.56 99 0 0 34 54 23 22 25 50.9 47 102 0 34 49 29 34 59 18 34 46 8 35 2 39 -0.56 100 0 0 35 17 16 22 25 53.3 48 103 1 35 12 22 35 22 11 35 9 2 35 25 31 -0.56 101 0 0 35 39 58 22 25 55.7 49 105 2 35 35 4 35 44 52 35 31 44 35 48 13 -0.56 102 0 0 36 2 28 22 25 58.2 49 106 3 35 57 34 36 7 22 35 54 14 36 10 42 -0.56 103 0 0 36 24 45 22 26 0.7 50 107 4 36 19 52 36 29 39 36 16 32 36 32 59 -0.56 104 0 0 36 46 50 22 26 3.2 51 109 5 36 41 57 36 51 44 36 38 38 36 55 4 -0.56 105 0 0 37 8 42 22 26 5.6 51 110 6 37 3 50 37 13 35 37 0 30 37 16 55 -0.56 106 0 0 37 30 21 22 26 8.1 52 111 6 37 25 28 37 35 14 37 22 9 37 38 33 -0.56 107 0 0 37 51 45 22 26 10.7 53 113 7 37 46 53 37 56 38 37 43 34 37 59 58 -0.56 108 0 0 38 12 56 22 26 13.2 53 114 8 38 8 4 38 17 48 38 4 45 38 21 7 -0.56 109 0 0 38 33 52 22 26 15.7 54 116 9 38 29 0 38 38 43 38 25 41 38 42 2 -0.56 110 0 0 38 54 32 22 26 18.2 54 117 10 38 49 41 38 59 24 38 46 23 39 2 43 -0.56 111 0 0 39 14 58 22 26 20.7 55 119 11 39 10 7 39 19 49 39 6 49 39 23 8 -0.56 112 0 0 39 35 8 22 26 23.2 55 120 12 39 30 18 39 39 59 39 27 0 39 43 17 -0.56 113 0 0 39 55 3 22 26 25.7 56 122 12 39 50 13 39 59 53 39 46 55 40 3 11 -0.56 114 0 0 40 14 41 22 26 28.3 56 124 13 40 9 51 40 19 31 40 6 34 40 22 48 -0.56 115 0 0 40 34 3 22 26 30.8 57 126 14 40 29 14 40 38 52 40 25 57 40 42 10 -0.56 116 0 0 40 53 8 22 26 33.3 57 127 15 40 48 20 40 57 57 40 45 3 41 1 14 -0.56 117 0 0 41 11 57 22 26 35.8 58 129 16 41 7 9 41 16 45 41 3 52 41 20 2 -0.56 118 0 0 41 30 28 22 26 38.3 58 131 17 41 25 41 41 35 16 41 22 25 41 38 33 -0.56 119 0 0 41 48 43 22 26 40.8 58 133 17 41 43 56 41 53 30 41 40 40 41 56 47 -0.56 120 0 0 42 6 40 22 26 43.3 59 135 18 42 1 53 42 11 27 41 58 38 42 14 43 -0.56 121 0 0 42 24 19 22 26 45.8 59 137 19 42 19 33 42 29 6 42 16 18 42 32 22 -0.56 122 0 0 42 41 41 22 26 48.3 59 138 20 42 36 56 42 46 27 42 33 41 42 49 43 -0.56 123 0 0 42 58 45 22 26 50.7 60 140 21 42 54 0 43 3 31 42 50 46 43 6 46 -0.56 124 0 0 43 15 32 22 26 53.2 60 142 21 43 10 47 43 20 17 43 7 33 43 23 31 -0.56 125 0 0 43 32 0 22 26 55.7 60 144 22 43 27 15 43 36 44 43 24 2 43 39 58 -0.56 126 0 0 43 48 10 22 26 58.1 60 146 23 43 43 26 43 52 54 43 40 12 43 56 7 -0.56 127 0 0 44 4 1 22 27 0.5 60 148 24 43 59 18 44 8 45 43 56 5 44 11 58 -0.56 128 0 0 44 19 35 22 27 2.9 60 151 24 44 14 52 44 24 18 44 11 39 44 27 31 -0.56 129 0 0 44 34 50 22 27 5.3 61 153 25 44 30 8 44 39 32 44 26 55 44 42 45 -0.56 130 0 0 44 49 47 22 27 7.7 61 155 26 44 45 5 44 54 29 44 41 53 44 57 41 -0.56 131 0 0 45 4 25 22 27 10.1 61 157 27 44 59 43 45 9 6 44 56 32 45 12 18 -0.56 132 0 0 45 18 44 22 27 12.5 61 159 27 45 14 4 45 23 25 45 10 52 45 26 37 -0.56 133 0 0 45 32 46 22 27 14.9 61 161 28 45 28 5 45 37 26 45 24 54 45 40 37 -0.56 134 0 0 45 46 28 22 27 17.2 61 163 29 45 41 48 45 51 8 45 38 38 45 54 19 -0.56 135 0 0 45 59 52 22 27 19.5 61 165 30 45 55 13 46 4 32 45 52 3 46 7 42 -0.56 136 0 0 46 12 57 22 27 21.8 61 167 30 46 8 19 46 17 36 46 5 9 46 20 47 -0.56 137 0 0 46 25 44 22 27 24.1 61 169 31 46 21 6 46 30 23 46 17 57 46 33 33 -0.56 138 0 0 46 38 13 22 27 26.4 61 171 32 46 33 35 46 42 51 46 30 26 46 46 0 -0.56 139 0 0 46 50 22 22 27 28.7 61 173 32 46 45 45 46 55 0 46 42 36 46 58 9 -0.56 140 0 0 47 2 13 22 27 31.0 60 175 33 46 57 37 47 6 50 46 54 28 47 9 59 -0.56 141 0 0 47 13 46 22 27 33.2 60 177 34 47 9 10 47 18 23 47 6 2 47 21 31 -0.56 142 0 0 47 25 0 22 27 35.4 60 179 34 47 20 24 47 29 36 47 17 17 47 32 44 -0.56 143 0 0 47 35 56 22 27 37.6 60 181 35 47 31 21 47 40 31 47 28 13 47 43 39 -0.56 144 0 0 47 46 33 22 27 39.8 60 183 36 47 41 58 47 51 8 47 38 51 47 54 16 -0.56 145 0 0 47 56 52 22 27 42.0 59 185 36 47 52 18 48 1 27 47 49 11 48 4 34 -0.56 146 0 0 48 6 52 22 27 44.2 59 187 37 48 2 18 48 11 27 47 59 12 48 14 34 -0.56 147 0 0 48 16 35 22 27 46.3 59 189 38 48 12 1 48 21 8 48 8 55 48 24 15 -0.56 148 0 0 48 25 58 22 27 48.4 59 190 38 48 21 25 48 30 32 48 18 19 48 33 38 -0.56 149 0 0 48 35 4 22 27 50.6 58 192 39 48 30 31 48 39 37 48 27 26 48 42 43 -0.56 150 0 0 48 43 52 22 27 52.7 58 194 39 48 39 19 48 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47 50 6 30 50 15 27 50 3 28 50 18 30 -0.56 164 0 0 50 15 37 22 28 20.4 53 216 48 50 11 9 50 20 5 50 8 7 50 23 8 -0.56 165 0 0 50 19 58 22 28 22.3 52 217 48 50 15 30 50 24 26 50 12 28 50 27 28 -0.56 166 0 0 50 24 1 22 28 24.1 52 219 49 50 19 34 50 28 29 50 16 32 50 31 31 -0.56 167 0 0 50 27 48 22 28 26.0 52 220 49 50 23 20 50 32 15 50 20 18 50 35 17 -0.56 168 0 0 50 31 17 22 28 27.8 51 221 50 50 26 50 50 35 44 50 23 48 50 38 46 -0.56 169 0 0 50 34 28 22 28 29.6 51 223 50 50 30 1 50 38 55 50 27 0 50 41 57 -0.56 170 0 0 50 37 23 22 28 31.4 50 224 51 50 32 56 50 41 49 50 29 54 50 44 52 -0.56 171 0 0 50 40 0 22 28 33.2 50 225 51 50 35 33 50 44 27 50 32 32 50 47 29 -0.56 172 0 0 50 42 20 22 28 34.9 49 227 52 50 37 53 50 46 46 50 34 52 50 49 48 -0.56 173 0 0 50 44 23 22 28 36.7 49 228 52 50 39 56 50 48 49 50 36 55 50 51 51 -0.56 174 0 0 50 46 8 22 28 38.4 48 229 53 50 41 42 50 50 35 50 38 41 50 53 37 -0.56 175 0 0 50 47 37 22 28 40.1 48 230 53 50 43 11 50 52 3 50 40 10 50 55 5 -0.56 176 0 0 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258 62 49 41 24 49 50 23 49 38 20 49 53 27 -0.56 -158 0 0 49 39 38 22 29 20.6 33 259 62 49 35 8 49 44 8 49 32 4 49 47 12 -0.56 -157 0 0 49 33 4 22 29 21.9 32 259 62 49 28 34 49 37 35 49 25 30 49 40 39 -0.56 -156 0 0 49 26 13 22 29 23.2 31 260 62 49 21 43 49 30 44 49 18 39 49 33 49 -0.56 -155 0 0 49 19 5 22 29 24.4 31 261 63 49 14 34 49 23 36 49 11 30 49 26 41 -0.56 -154 0 0 49 11 39 22 29 25.6 30 262 63 49 7 7 49 16 10 49 4 3 49 19 15 -0.56 -153 0 0 49 3 55 22 29 26.8 29 263 63 48 59 23 49 8 26 48 56 18 49 11 32 -0.56 -152 0 0 48 55 53 22 29 28.0 29 264 63 48 51 21 49 0 25 48 48 16 49 3 30 -0.56 -151 0 0 48 47 33 22 29 29.2 28 265 63 48 43 1 48 52 6 48 39 55 48 55 11 -0.56 -150 0 0 48 38 55 22 29 30.3 27 266 63 48 34 23 48 43 28 48 31 17 48 46 35 -0.56 -149 0 0 48 30 0 22 29 31.4 27 266 63 48 25 27 48 34 33 48 22 21 48 37 40 -0.57 -148 0 0 48 20 47 22 29 32.5 26 267 63 48 16 13 48 25 20 48 13 7 48 28 27 -0.57 -147 0 0 48 11 15 22 29 33.6 25 268 63 48 6 41 48 15 49 48 3 34 48 18 56 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14 45 44 35 45 32 4 45 47 46 -0.58 -133 0 0 45 26 9 22 29 46.4 16 279 60 45 21 28 45 30 50 45 18 17 45 34 1 -0.58 -132 0 0 45 12 5 22 29 47.1 15 280 60 45 7 23 45 16 46 45 4 12 45 19 58 -0.58 -131 0 0 44 57 42 22 29 47.8 14 281 59 44 53 1 45 2 24 44 49 49 45 5 37 -0.58 -130 0 0 44 43 2 22 29 48.4 14 281 59 44 38 20 44 47 44 44 35 8 44 50 57 -0.58 -129 0 0 44 28 4 22 29 49.1 13 282 58 44 23 21 44 32 47 44 20 8 44 36 0 -0.58 -128 0 0 44 12 47 22 29 49.7 12 283 58 44 8 4 44 17 31 44 4 51 44 20 44 -0.59 -127 0 0 43 57 13 22 29 50.2 11 284 57 43 52 29 44 1 57 43 49 16 44 5 11 -0.59 -126 0 0 43 41 21 22 29 50.7 10 284 57 43 36 37 43 46 6 43 33 23 43 49 20 -0.59 -125 0 0 43 25 11 22 29 51.2 10 285 56 43 20 27 43 29 56 43 17 13 43 33 11 -0.59 -124 0 0 43 8 44 22 29 51.7 9 286 56 43 3 59 43 13 29 43 0 45 43 16 44 -0.60 -123 0 0 42 51 59 22 29 52.1 8 286 55 42 47 13 42 56 45 42 43 59 43 0 0 -0.60 -122 0 0 42 34 57 22 29 52.5 7 287 55 42 30 11 42 39 43 42 26 56 42 42 58 -0.61 -121 0 0 42 17 37 22 29 52.9 7 288 54 42 12 51 42 22 24 42 9 35 42 25 40 -0.61 -120 0 0 42 0 1 22 29 53.2 6 288 54 41 55 14 42 4 48 41 51 58 42 8 4 -0.62 -119 0 0 41 42 7 22 29 53.4 5 289 53 41 37 19 41 46 55 41 34 4 41 50 11 -0.63 -118 0 0 41 23 57 22 29 53.7 4 290 53 41 19 9 41 28 45 41 15 52 41 32 1 -0.65 -117 0 0 41 5 30 22 29 53.9 3 290 52 41 0 41 41 10 18 40 57 25 41 13 35 -0.67 -116 0 0 40 46 46 22 29 54.0 3 291 51 40 41 57 40 51 35 40 38 41 40 54 53 -0.71 -115 0 0 40 27 47 22 29 54.1 2 292 51 40 22 58 40 32 36 40 19 41 40 35 54 -0.78 -114 0 0 40 8 31 22 29 54.2 1 292 50 40 3 42 40 13 21 40 0 24 40 16 39 -1.00 -113 0 0 39 49 0 22 29 54.2 0 293 49 39 44 10 39 53 50 .. .. .. 39 57 8 -10.97 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: UCAC4 538-006095 * constellation : Aries * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 17 29.0972 DE: +17 24 35.958 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 17 29.0972 DE: +17 24 35.958 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2527) Gregory asteroid class: approx. diameter [km]: 14 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.37590 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2023 Apr 24 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): 0.012", 0.003", 79.639° remarks: * orbital elements for (2527)Gregory : Mean anomaly = 15.1557867972 deg Arg. of pericenter = 177.9952948289 deg Long. of node = 186.1991350335 deg Inclination = 2.6155810353 deg Eccentricity = 0.1852663667 Semimajor axis = 2.4656489572 AU Perihelion dist = 2.0088471334 AU Mag: H = 13.38, G = 0.15 Epoch of elements : MJD 60502.93560725 TDT (2024 Jul 11.9356) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr24,0.41,2024,7,11,22.454571,-0.108152,0.471366,19.411665,4.477764,-0.004202,-0.001157,-0.000001,0.000000 142.5769,17.4996,-155.40,21.93,False UCAC4 538-006095,3.29141583,17.4099882,12.54,11.94,11.62,0.0,0,,3.31426821,17.4995532,6.01,5.89,0,0,0 2527,Gregory,17.95,14.359,2.3759,0,0,5.023,16.57,,1.6,0 0,14.9176,2024,7,11,177.9953,186.1991,2.6156,0.18527,2.46565,2.00885,13.37,5.0,0.15 1.341,0.0117,0.0028,80,0.0029,Known errors,1.17,0,-1,-1 20240711_006095,60140.20 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:42 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org