IOTA/IOTA-ES occultation update for (306) Unitas / TYC 1350-00326-1 event on 2010 Feb 09, 22:42 UT Visible from N Africa, Europe, SE Canada Summary ------- On 2010 Feb 09 UT, the 47 km diameter asteroid (306) Unitas will occult a 12.5 mag star in the constellation Gemini for observers along a path across N Africa, Europe, SE Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.1 mag to 13.1 mag (the magnitude of the asteroid) for at most 4.9 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 73 * date and approx. time of event: 2010 Feb 09, 22:31 - 2010 Feb 09, 22:50 UT * magnitude of target star: 12.5 * magnitude drop [mag]: 1.1 * estimated maximum duration [s]: 4.9 * Moon: 14 % sunlit, 167° distance * Sun: 147° distance * rough path description: N Africa, Europe, SE Canada The occultation path -------------------- * approximate projected width [km]: 50 * 1 sigma uncertainty interval [path widths]: +/- 0.78 * 1 sigma uncertainty interval [seconds]: +/- 4.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .030 +/- .028) * 1 sigma uncertainty ellipse (major, minor, PA): ( .030", .028", 91° ) * approx speed of asteroid's shadow [km/s]: 9.5819 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1350-00326-1 by 306 Unitas on 2010 Feb 9 Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude - 86 0 0 49 13 24 22 50 55 25 91 0 49 26 59 48 59 49 49 48 13 48 38 42 - 85 0 0 49 19 4 22 50 51 26 92 -1 49 32 38 49 5 31 49 53 51 48 44 25 - 84 0 0 49 24 23 22 50 48 26 92 -2 49 37 56 49 10 51 49 59 7 48 49 46 - 83 0 0 49 29 20 22 50 44 27 93 -2 49 42 52 49 15 48 50 4 2 48 54 45 - 82 0 0 49 33 54 22 50 41 27 94 -3 49 47 26 49 20 24 50 8 34 48 59 22 - 81 0 0 49 38 7 22 50 37 28 95 -3 49 51 38 49 24 38 50 12 46 49 3 37 - 80 0 0 49 41 59 22 50 33 29 96 -4 49 55 29 49 28 30 50 16 35 49 7 30 - 79 0 0 49 45 29 22 50 29 29 96 -5 49 58 58 49 32 0 50 20 4 49 11 1 - 78 0 0 49 48 37 22 50 25 30 97 -5 50 2 6 49 35 9 50 23 10 49 14 11 - 77 0 0 49 51 24 22 50 21 31 98 -6 50 4 53 49 37 56 50 25 56 49 16 59 - 76 0 0 49 53 49 22 50 17 31 99 -7 50 7 18 49 40 22 50 28 21 49 19 25 - 75 0 0 49 55 54 22 50 13 32 100 -7 50 9 22 49 42 27 50 30 24 49 21 30 - 74 0 0 49 57 37 22 50 9 32 101 -8 50 11 5 49 44 10 50 32 7 49 23 14 - 73 0 0 49 58 59 22 50 5 33 101 -8 50 12 26 49 45 32 50 33 28 49 24 37 - 72 0 0 50 0 0 22 50 1 34 102 -9 50 13 27 49 46 33 50 34 29 49 25 38 - 71 0 0 50 0 39 22 49 56 34 103 -10 50 14 7 49 47 13 50 35 8 49 26 18 - 70 0 0 50 0 58 22 49 52 35 104 -10 50 14 25 49 47 32 50 35 27 49 26 36 - 69 0 0 50 0 56 22 49 47 36 105 -11 50 14 23 49 47 30 50 35 25 49 26 34 - 68 0 0 50 0 32 22 49 43 36 106 -12 50 14 0 49 47 6 50 35 2 49 26 10 - 67 0 0 49 59 48 22 49 38 37 107 -12 50 13 16 49 46 22 50 34 18 49 25 25 - 66 0 0 49 58 43 22 49 33 37 107 -13 50 12 11 49 45 16 50 33 13 49 24 19 - 65 0 0 49 57 17 22 49 29 38 108 -13 50 10 45 49 43 49 50 31 48 49 22 52 - 64 0 0 49 55 29 22 49 24 39 109 -14 50 8 58 49 42 2 50 30 2 49 21 4 - 63 0 0 49 53 21 22 49 19 39 110 -15 50 6 50 49 39 53 50 27 54 49 18 55 - 62 0 0 49 50 52 22 49 14 40 111 -15 50 4 21 49 37 23 50 25 26 49 16 24 - 61 0 0 49 48 1 22 49 9 40 112 -16 50 1 31 49 34 32 50 22 38 49 13 32 - 60 0 0 49 44 50 22 49 4 41 113 -17 49 58 20 49 31 20 50 19 28 49 10 19 - 59 0 0 49 41 17 22 48 59 42 114 -17 49 54 48 49 27 46 50 15 57 49 6 44 - 58 0 0 49 37 23 22 48 53 42 115 -18 49 50 55 49 23 52 50 12 5 49 2 48 - 57 0 0 49 33 8 22 48 48 43 116 -18 49 46 41 49 19 36 50 7 52 48 58 31 - 56 0 0 49 28 31 22 48 43 43 116 -19 49 42 6 49 14 58 50 3 18 48 53 52 - 55 0 0 49 23 34 22 48 37 44 117 -20 49 37 9 49 10 0 49 58 22 48 48 52 - 54 0 0 49 18 14 22 48 32 45 118 -20 49 31 50 49 4 39 49 53 6 48 43 30 - 53 0 0 49 12 34 22 48 26 45 119 -21 49 26 11 48 58 58 49 47 28 48 37 47 - 52 0 0 49 6 31 22 48 20 46 120 -22 49 20 9 48 52 54 49 41 28 48 31 42 - 51 0 0 49 0 7 22 48 15 46 121 -22 49 13 47 48 46 29 49 35 7 48 25 14 - 50 0 0 48 53 21 22 48 9 47 122 -23 49 7 2 48 39 42 49 28 25 48 18 25 - 49 0 0 48 46 14 22 48 3 48 123 -24 48 59 56 48 32 33 49 21 20 48 11 14 - 48 0 0 48 38 44 22 47 57 48 124 -24 48 52 27 48 25 2 49 13 54 48 3 41 - 47 0 0 48 30 52 22 47 51 49 125 -25 48 44 37 48 17 8 49 6 6 47 55 46 - 46 0 0 48 22 38 22 47 45 49 126 -26 48 36 24 48 8 53 48 57 56 47 47 28 - 45 0 0 48 14 2 22 47 38 50 127 -26 48 27 49 48 0 15 48 49 23 47 38 48 - 44 0 0 48 5 3 22 47 32 51 128 -27 48 18 52 47 51 15 48 40 29 47 29 45 - 43 0 0 47 55 42 22 47 26 51 130 -28 48 9 33 47 41 52 48 31 12 47 20 20 - 42 0 0 47 45 58 22 47 19 52 131 -28 47 59 50 47 32 6 48 21 32 47 10 31 - 41 0 0 47 35 51 22 47 12 52 132 -29 47 49 45 47 21 58 48 11 30 47 0 20 - 40 0 0 47 25 21 22 47 6 53 133 -30 47 39 17 47 11 26 48 1 4 46 49 46 - 39 0 0 47 14 28 22 46 59 54 134 -30 47 28 27 47 0 32 47 50 16 46 38 49 - 38 0 0 47 3 13 22 46 52 54 135 -31 47 17 12 46 49 14 47 39 5 46 27 28 - 37 0 0 46 51 33 22 46 45 55 136 -32 47 5 35 46 37 33 47 27 31 46 15 44 - 36 0 0 46 39 31 22 46 38 55 138 -32 46 53 34 46 25 28 47 15 33 46 3 36 - 35 0 0 46 27 4 22 46 31 56 139 -33 46 41 10 46 13 0 47 3 12 45 51 5 - 34 0 0 46 14 14 22 46 24 57 140 -34 46 28 22 46 0 8 46 50 27 45 38 10 - 33 0 0 46 1 0 22 46 17 57 141 -34 46 15 10 45 46 52 46 37 19 45 24 51 - 32 0 0 45 47 23 22 46 9 58 143 -35 46 1 35 45 33 12 46 23 46 45 11 7 - 31 0 0 45 33 21 22 46 2 58 144 -36 45 47 35 45 19 8 46 9 50 44 57 0 - 30 0 0 45 18 54 22 45 54 59 145 -37 45 33 11 45 4 39 45 55 29 44 42 28 - 29 0 0 45 4 4 22 45 46 60 147 -37 45 18 22 44 49 47 45 40 44 44 27 32 - 28 0 0 44 48 49 22 45 39 60 148 -38 45 3 9 44 34 29 45 25 35 44 12 11 - 27 0 0 44 33 9 22 45 31 61 150 -39 44 47 32 44 18 47 45 10 1 43 56 26 - 26 0 0 44 17 4 22 45 23 61 151 -40 44 31 30 44 2 41 44 54 2 43 40 16 - 25 0 0 44 0 35 22 45 15 62 153 -40 44 15 2 43 46 9 44 37 38 43 23 41 - 24 0 0 43 43 41 22 45 6 62 155 -41 43 58 10 43 29 12 44 20 50 43 6 41 - 23 0 0 43 26 21 22 44 58 63 156 -42 43 40 53 43 11 51 44 3 37 42 49 15 - 22 0 0 43 8 37 22 44 50 64 158 -43 43 23 11 42 54 4 43 45 58 42 31 25 - 21 0 0 42 50 27 22 44 41 64 160 -43 43 5 4 42 35 52 43 27 54 42 13 9 - 20 0 0 42 31 52 22 44 33 65 162 -44 42 46 31 42 17 15 43 9 25 41 54 28 - 19 0 0 42 12 52 22 44 24 65 164 -45 42 27 33 41 58 12 42 50 31 41 35 22 - 18 0 0 41 53 26 22 44 15 66 166 -46 42 8 10 41 38 44 42 31 11 41 15 50 - 17 0 0 41 33 35 22 44 6 66 168 -46 41 48 21 41 18 50 42 11 26 40 55 53 - 16 0 0 41 13 18 22 43 57 67 170 -47 41 28 6 40 58 31 41 51 15 40 35 30 - 15 0 0 40 52 36 22 43 48 67 172 -48 41 7 27 40 37 47 41 30 39 40 14 42 - 14 0 0 40 31 28 22 43 39 67 174 -49 40 46 21 40 16 36 41 9 37 39 53 29 - 13 0 0 40 9 55 22 43 30 68 176 -50 40 24 50 39 55 1 40 48 10 39 31 49 - 12 0 0 39 47 56 22 43 20 68 179 -50 40 2 54 39 33 0 40 26 17 39 9 45 - 11 0 0 39 25 32 22 43 11 69 181 -51 39 40 32 39 10 33 40 3 59 38 47 15 - 10 0 0 39 2 42 22 43 1 69 184 -52 39 17 44 38 47 41 39 41 15 38 24 19 - 9 0 0 38 39 27 22 42 51 69 187 -53 38 54 31 38 24 24 39 18 6 38 0 59 - 8 0 0 38 15 47 22 42 42 70 189 -54 38 30 53 38 0 42 38 54 31 37 37 13 - 7 0 0 37 51 41 22 42 32 70 192 -55 38 6 50 37 36 34 38 30 31 37 13 2 - 6 0 0 37 27 11 22 42 22 70 195 -56 37 42 22 37 12 2 38 6 7 36 48 26 - 5 0 0 37 2 16 22 42 12 70 198 -56 37 17 29 36 47 4 37 41 17 36 23 26 - 4 0 0 36 36 56 22 42 1 70 201 -57 36 52 11 36 21 43 37 16 2 35 58 1 - 3 0 0 36 11 12 22 41 51 70 204 -58 36 26 29 35 55 56 36 50 23 35 32 11 - 2 0 0 35 45 3 22 41 41 71 207 -59 36 0 22 35 29 46 36 24 20 35 5 58 - 1 0 0 35 18 31 22 41 31 71 210 -60 35 33 52 35 3 11 35 57 52 34 39 20 0 0 0 34 51 34 22 41 20 71 214 -61 35 6 57 34 36 13 35 31 1 34 12 19 1 0 0 34 24 15 22 41 9 70 217 -62 34 39 40 34 8 52 35 3 46 33 44 55 2 0 0 33 56 32 22 40 59 70 220 -63 34 11 58 33 41 7 34 36 7 33 17 7 3 0 0 33 28 26 22 40 48 70 223 -64 33 43 54 33 13 0 34 8 6 32 48 57 4 0 0 32 59 58 22 40 37 70 226 -64 33 15 28 32 44 30 33 39 42 32 20 25 5 0 0 32 31 8 22 40 27 70 229 -65 32 46 40 32 15 38 33 10 56 31 51 31 6 0 0 32 1 56 22 40 16 69 232 -66 32 17 29 31 46 25 32 41 48 31 22 15 7 0 0 31 32 23 22 40 5 69 235 -67 31 47 58 31 16 51 32 12 19 30 52 39 8 0 0 31 2 30 22 39 54 69 237 -68 31 18 6 30 46 56 31 42 29 30 22 42 9 0 0 30 32 16 22 39 43 68 240 -69 30 47 53 30 16 41 31 12 19 29 52 25 10 0 0 30 1 43 22 39 32 68 243 -70 30 17 21 29 46 6 30 41 49 29 21 49 11 0 0 29 30 51 22 39 21 67 245 -71 29 46 30 29 15 13 30 10 59 28 50 53 12 0 0 28 59 40 22 39 10 67 247 -72 29 15 20 28 44 1 29 39 51 28 19 40 13 0 0 28 28 11 22 38 58 66 250 -73 28 43 52 28 12 31 29 8 25 27 48 9 14 0 0 27 56 25 22 38 47 65 252 -74 28 12 7 27 40 44 28 36 41 27 16 20 15 0 0 27 24 23 22 38 36 65 254 -75 27 40 6 27 8 41 28 4 41 26 44 16 16 0 0 26 52 4 22 38 25 64 256 -76 27 7 48 26 36 22 27 32 24 26 11 56 17 0 0 26 19 31 22 38 14 63 258 -76 26 35 15 26 3 48 26 59 52 25 39 21 18 0 0 25 46 43 22 38 3 63 260 -77 26 2 28 25 30 59 26 27 6 25 6 31 19 0 0 25 13 41 22 37 52 62 261 -78 25 29 27 24 57 57 25 54 5 24 33 29 20 0 0 24 40 27 22 37 40 61 263 -79 24 56 12 24 24 43 25 20 52 24 0 13 21 0 0 24 7 0 22 37 29 60 265 -80 24 22 46 23 51 16 24 47 26 23 26 46 22 0 0 23 33 23 22 37 18 60 266 -81 23 49 9 23 17 38 24 13 49 22 53 8 23 0 0 22 59 35 22 37 7 59 267 -81 23 15 21 22 43 50 23 40 1 22 19 20 24 0 0 22 25 37 22 36 56 58 269 -82 22 41 23 22 9 53 23 6 3 21 45 23 25 0 0 21 51 31 22 36 45 57 270 -83 22 7 17 21 35 47 22 31 57 21 11 17 26 0 0 21 17 17 22 36 35 56 271 -83 21 33 3 21 1 33 21 57 42 20 37 3 27 0 0 20 42 57 22 36 24 55 272 -83 20 58 42 20 27 13 21 23 21 20 2 44 28 0 0 20 8 30 22 36 13 54 273 -83 20 24 16 19 52 47 20 48 54 19 28 18 29 0 0 19 33 59 22 36 3 53 274 -83 19 49 44 19 18 16 20 14 21 18 53 48 30 0 0 18 59 24 22 35 52 52 275 -83 19 15 8 18 43 42 19 39 45 18 19 15 31 0 0 18 24 46 22 35 42 51 276 -83 18 40 30 18 9 4 19 5 5 17 44 38 32 0 0 17 50 6 22 35 31 50 277 -82 18 5 49 17 34 25 18 30 23 17 10 0 33 0 0 17 15 25 22 35 21 49 278 -81 17 31 7 16 59 45 17 55 40 16 35 21 34 0 0 16 40 44 22 35 11 48 279 -81 16 56 25 16 25 5 17 20 57 16 0 43 35 0 0 16 6 4 22 35 1 47 280 -80 16 21 44 15 50 26 16 46 14 15 26 5 36 0 0 15 31 26 22 34 51 46 280 -79 15 47 5 15 15 49 16 11 33 14 51 30 37 0 0 14 56 51 22 34 42 45 281 -78 15 12 29 14 41 15 15 36 55 14 16 58 38 0 0 14 22 20 22 34 32 44 281 -77 14 37 56 14 6 45 15 2 21 13 42 30 39 0 0 13 47 54 22 34 23 43 282 -76 14 3 29 13 32 20 14 27 51 13 8 7 40 0 0 13 13 34 22 34 14 42 283 -75 13 29 7 12 58 2 13 53 28 12 33 51 41 0 0 12 39 20 22 34 5 41 283 -74 12 54 53 12 23 50 13 19 11 11 59 41 42 0 0 12 5 15 22 33 56 40 284 -73 12 20 46 11 49 46 12 45 1 11 25 40 43 0 0 11 31 19 22 33 47 39 284 -72 11 46 48 11 15 51 12 11 1 10 51 47 44 0 0 10 57 32 22 33 39 38 285 -71 11 13 0 10 42 6 11 37 10 10 18 5 45 0 0 10 23 56 22 33 31 37 285 -70 10 39 22 10 8 32 11 3 30 9 44 33 46 0 0 9 50 32 22 33 22 36 285 -69 10 5 56 9 35 10 10 30 1 9 11 14 47 0 0 9 17 21 22 33 15 35 286 -68 9 32 43 9 2 0 9 56 45 8 38 7 48 0 0 8 44 23 22 33 7 34 286 -67 8 59 43 8 29 4 9 23 42 8 5 14 49 0 0 8 11 39 22 32 59 33 286 -66 8 26 58 7 56 22 8 50 53 7 32 35 50 0 0 7 39 11 22 32 52 32 287 -65 7 54 27 7 23 56 8 18 20 7 0 12 51 0 0 7 6 59 22 32 45 31 287 -64 7 22 13 6 51 46 7 46 2 6 28 5 52 0 0 6 35 4 22 32 38 30 287 -63 6 50 16 6 19 53 7 14 2 5 56 15 53 0 0 6 3 26 22 32 32 29 287 -62 6 18 36 5 48 18 6 42 19 5 24 43 54 0 0 5 32 7 22 32 25 27 288 -61 5 47 15 5 17 1 6 10 54 4 53 30 55 0 0 5 1 8 22 32 19 26 288 -59 5 16 14 4 46 4 5 39 49 4 22 36 56 0 0 4 30 28 22 32 13 25 288 -58 4 45 32 4 15 26 5 9 4 3 52 2 57 0 0 4 0 10 22 32 8 24 288 -57 4 15 11 3 45 10 4 38 40 3 21 49 58 0 0 3 30 13 22 32 2 23 288 -56 3 45 12 3 15 15 4 8 37 2 51 58 59 0 0 3 0 38 22 31 57 22 288 -55 3 15 35 2 45 43 3 38 56 2 22 29 60 0 0 2 31 26 22 31 52 21 288 -54 2 46 20 2 16 33 3 9 38 1 53 23 61 0 0 2 2 38 22 31 48 20 289 -53 2 17 30 1 47 47 2 40 44 1 24 41 62 0 0 1 34 13 22 31 43 19 289 -52 1 49 3 1 19 25 2 12 14 0 56 22 63 0 0 1 6 14 22 31 39 18 289 -51 1 21 1 0 51 28 1 44 8 0 28 29 64 0 0 0 38 40 22 31 35 17 289 -50 0 53 24 0 23 56 1 16 28 0 1 1 65 0 0 0 11 31 22 31 31 16 289 -49 0 26 14 - 0 3 10 0 49 13 - 0 26 2 66 0 0 - 0 15 11 22 31 28 15 289 -48 - 0 0 31 - 0 29 50 0 22 25 - 0 52 38 67 0 0 - 0 41 26 22 31 25 13 289 -46 - 0 26 48 - 0 56 2 - 0 3 56 - 1 18 47 68 0 0 - 1 7 14 22 31 22 12 289 -45 - 0 52 38 - 1 21 48 - 0 29 50 - 1 44 29 69 0 0 - 1 32 34 22 31 19 11 289 -44 - 1 18 1 - 1 47 5 - 0 55 16 - 2 9 43 70 0 0 - 1 57 25 22 31 16 10 289 -43 - 1 42 55 - 2 11 55 - 1 20 14 - 2 34 29 71 0 0 - 2 21 49 22 31 14 9 289 -42 - 2 7 20 - 2 36 16 - 1 44 43 - 2 58 46 72 0 0 - 2 45 43 22 31 12 8 289 -41 - 2 31 16 - 3 0 7 - 2 8 43 - 3 22 34 73 0 0 - 3 9 7 22 31 11 7 289 -40 - 2 54 43 - 3 23 30 - 2 32 13 - 3 45 53 74 0 0 - 3 32 2 22 31 9 6 289 -39 - 3 17 40 - 3 46 22 - 2 55 14 - 4 8 42 75 0 0 - 3 54 27 22 31 8 5 289 -38 - 3 40 7 - 4 8 45 - 3 17 44 - 4 31 1 76 0 0 - 4 16 21 22 31 7 4 288 -37 - 4 2 4 - 4 30 37 - 3 39 44 - 4 52 49 77 0 0 - 4 37 44 22 31 6 3 288 -36 - 4 23 29 - 4 51 58 - 4 1 13 - 5 14 7 78 0 0 - 4 58 37 22 31 6 2 288 -35 - 4 44 24 - 5 12 48 - 4 22 11 - 5 34 54 79 0 0 - 5 18 58 22 31 5 1 288 -34 - 5 4 47 - 5 33 7 - 4 42 38 - 5 55 10 Uncertainty in time = +/- 4 secs Prediction of 2010 Jan 10.0 Data for the target star ------------------------ * name: TYC 1350-00326-1 * constellation : Gemini * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 07 16 01.2760 DE: +18 06 24.563 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .025, .025 ) * V mag [mag]: 12.5 * B mag [mag]: 12.7 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (306) Unitas approx. diameter [km]: 47 approx. diameter ["]: .036 distance from Earth [AU]: 1.82400 * orbital information: orbit source: Preston date of fit: 2010 Jan 10 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 801 number of rejected observations: 137 time covered by the observations: 1902 Mar 13 - 2009 Dec 26 1 sigma uncertainty ellipse (major, minor, PA): 0.017, 0.013, 92° remarks: * orbital elements for (306) Unitas : Mean anomaly = 166.45092234 deg Arg. of pericenter = 167.48076570 deg Long. of node = 142.01222425 deg Inclination = 7.27012435 deg Eccentricity = 0.15006827 Semimajor axis = 2.35845819 AU Perihelion dist = 2.00452845 AU Mag: H = 8.73, G = 0.15 Epoch of elements : MJD 55236.94600000 TDT (2010 Feb 09.946) ------ occelmnt file for Occult BEGIN ----------------------------------- 2010 Feb 9 306 Unitas 22h 41.5m UT 12.5 7 16 1.276 18 6 24.56TYC 1350-00326-1 12.7 13.1 47 4.9 1.824 -1.656 11.03 -11.2943 18.104 -156.83 -14.47 22.6924 0.14079 0.29800 -4.90003 2.28893 0.00321 -0.00006 2000 164.5607712010 2 3.00000167.480766142.012224 7.2701240.15006827 2.3584582 2.0045284 9.0 5.00.15 RATE 2.7212080 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.030 0.028 91 1.78 0.028 0 055206.0020100209_0326-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2010 Jan 10, 08:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org