IOTA/IOTA-ES occultation update for (13228) 1997 SJ25 / HIP 85877 event on 2024 Oct 17, 13:41 UT Visible from Summary ------- On 2024 Oct 17 UT, the 12.4880189439378 km diameter asteroid (13228) 1997 SJ25 will occult a 8.4 mag star in the constellation Ophiuchus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 10.11 mag to 18.48 mag (the magnitude of the asteroid) for at most 0.370 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: 82 * date and approx. time of event: 2024 Oct 17, 13:38 - 2024 Oct 17, 13:44 * geocentric midpoint of event [JD]: 2460601.07047933 * magnitude of target star: 8.37 * magnitude drop [mag]: 10.11 * estimated maximum duration [s]: 0.370 * Moon: 100 % sunlit, 122° distance * Sun: 60° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.65 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.004", 96°) * approx speed of asteroid's shadow [km/s]: 34.0469 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 85877 by 13228 1997 SJ25 on 2024 Oct 17 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 - 47 0 0 20 28 57 13 38 32.2 1 116 55 20 24 54 20 33 1 20 19 39 20 38 16 .... - 46 0 0 20 1 9 13 38 32.3 2 117 56 19 57 6 20 5 13 19 51 51 20 10 28 -0.15 - 45 0 0 19 33 18 13 38 32.5 3 117 57 19 29 14 19 37 21 19 24 0 19 42 36 -0.22 - 44 0 0 19 5 23 13 38 32.7 4 117 58 19 1 20 19 9 27 18 56 5 19 14 42 -0.26 - 43 0 0 18 37 27 13 38 32.9 5 118 58 18 33 24 18 41 31 18 28 9 18 46 46 -0.27 - 42 0 0 18 9 30 13 38 33.3 6 118 59 18 5 26 18 13 33 18 0 12 18 18 48 -0.29 - 41 0 0 17 41 32 13 38 33.7 7 118 60 17 37 29 17 45 35 17 32 14 17 50 50 -0.30 - 40 0 0 17 13 34 13 38 34.2 8 119 61 17 9 31 17 17 37 17 4 17 17 22 52 -0.30 - 39 0 0 16 45 37 13 38 34.7 9 119 62 16 41 34 16 49 40 16 36 20 16 54 54 -0.31 - 38 0 0 16 17 42 13 38 35.4 10 119 62 16 13 39 16 21 45 16 8 26 16 26 59 -0.31 - 37 0 0 15 49 50 13 38 36.1 11 120 63 15 45 47 15 53 52 15 40 34 15 59 6 -0.31 - 36 0 0 15 22 1 13 38 36.8 12 120 64 15 17 58 15 26 3 15 12 45 15 31 17 -0.32 - 35 0 0 14 54 16 13 38 37.6 13 120 65 14 50 14 14 58 18 14 45 1 15 3 31 -0.32 - 34 0 0 14 26 36 13 38 38.5 15 120 65 14 22 34 14 30 37 14 17 21 14 35 51 -0.32 - 33 0 0 13 59 1 13 38 39.5 16 121 66 13 54 59 14 3 3 13 49 47 14 8 16 -0.32 - 32 0 0 13 31 33 13 38 40.5 17 121 67 13 27 32 13 35 34 13 22 20 13 40 47 -0.32 - 31 0 0 13 4 12 13 38 41.6 18 121 67 13 0 11 13 8 13 12 54 59 13 13 25 -0.33 - 30 0 0 12 36 59 13 38 42.8 19 121 68 12 32 58 12 41 0 12 27 47 12 46 12 -0.33 - 29 0 0 12 9 54 13 38 44.0 20 122 68 12 5 54 12 13 55 12 0 43 12 19 6 -0.33 - 28 0 0 11 42 59 13 38 45.3 21 122 69 11 38 59 11 46 59 11 33 48 11 52 10 -0.33 - 27 0 0 11 16 14 13 38 46.7 22 122 69 11 12 14 11 20 14 11 7 4 11 25 25 -0.33 - 26 0 0 10 49 40 13 38 48.2 23 122 70 10 45 40 10 53 39 10 40 30 10 58 50 -0.33 - 25 0 0 10 23 17 13 38 49.7 24 123 70 10 19 18 10 27 16 10 14 8 10 32 26 -0.33 - 24 0 0 9 57 6 13 38 51.2 25 123 70 9 53 7 10 1 5 9 47 58 10 6 14 -0.33 - 23 0 0 9 31 8 13 38 52.8 26 123 70 9 27 10 9 35 7 9 22 1 9 40 16 -0.33 - 22 0 0 9 5 24 13 38 54.5 27 124 70 9 1 26 9 9 22 8 56 18 9 14 30 -0.33 - 21 0 0 8 39 54 13 38 56.3 28 124 70 8 35 56 8 43 51 8 30 48 8 48 59 -0.33 - 20 0 0 8 14 38 13 38 58.1 29 124 70 8 10 41 8 18 35 8 5 34 8 23 43 -0.33 - 19 0 0 7 49 38 13 39 0.0 31 124 70 7 45 41 7 53 35 7 40 35 7 58 42 -0.34 - 18 0 0 7 24 54 13 39 1.9 32 125 70 7 20 57 7 28 50 7 15 51 7 33 57 -0.34 - 17 0 0 7 0 26 13 39 3.9 33 125 70 6 56 30 7 4 23 6 51 25 7 9 28 -0.34 - 16 0 0 6 36 16 13 39 5.9 34 125 70 6 32 20 6 40 12 6 27 15 6 45 17 -0.34 - 15 0 0 6 12 23 13 39 8.0 35 125 69 6 8 28 6 16 19 6 3 24 6 21 23 -0.34 - 14 0 0 5 48 49 13 39 10.2 36 126 69 5 44 54 5 52 44 5 39 50 5 57 48 -0.34 - 13 0 0 5 25 33 13 39 12.4 37 126 69 5 21 39 5 29 28 5 16 36 5 34 31 -0.34 - 12 0 0 5 2 37 13 39 14.6 38 126 68 4 58 43 5 6 31 4 53 40 5 11 34 -0.34 - 11 0 0 4 40 0 13 39 17.0 39 127 68 4 36 7 4 43 54 4 31 5 4 48 56 -0.34 - 10 0 0 4 17 44 13 39 19.3 40 127 67 4 13 51 4 21 37 4 8 49 4 26 39 -0.34 - 9 0 0 3 55 48 13 39 21.7 41 127 66 3 51 56 3 59 41 3 46 55 4 4 42 -0.34 - 8 0 0 3 34 14 13 39 24.2 42 128 66 3 30 22 3 38 6 3 25 21 3 43 7 -0.34 - 7 0 0 3 13 1 13 39 26.7 43 128 65 3 9 9 3 16 53 3 4 9 3 21 53 -0.34 - 6 0 0 2 52 10 13 39 29.2 44 128 64 2 48 19 2 56 1 2 43 19 3 1 1 -0.34 - 5 0 0 2 31 41 13 39 31.8 45 129 64 2 27 50 2 35 32 2 22 52 2 40 31 -0.34 - 4 0 0 2 11 35 13 39 34.4 46 129 63 2 7 45 2 15 26 2 2 47 2 20 24 -0.34 - 3 0 0 1 51 53 13 39 37.1 47 130 62 1 48 3 1 55 43 1 43 5 2 0 41 -0.34 - 2 0 0 1 32 33 13 39 39.8 48 130 61 1 28 44 1 36 23 1 23 47 1 41 20 -0.34 - 1 0 0 1 13 38 13 39 42.5 49 131 60 1 9 49 1 17 27 1 4 52 1 22 24 -0.34 0 0 0 0 55 6 13 39 45.3 50 131 60 0 51 18 0 58 55 0 46 22 1 3 51 -0.34 1 0 0 0 36 59 13 39 48.1 51 132 59 0 33 11 0 40 48 0 28 16 0 45 43 -0.34 2 0 0 0 19 17 13 39 51.0 52 132 58 0 15 29 0 23 5 0 10 34 0 28 0 -0.34 3 0 0 0 1 59 13 39 53.9 53 133 57 - 0 1 48 0 5 47 - 0 6 42 0 10 42 -0.34 4 0 0 - 0 14 53 13 39 56.8 54 134 56 - 0 18 40 - 0 11 6 - 0 23 34 - 0 6 12 -0.34 5 0 0 - 0 31 20 13 39 59.7 55 134 55 - 0 35 6 - 0 27 33 - 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5 0 21 - 4 53 1 - 5 5 5 - 4 48 17 -0.35 31 0 0 - 5 1 15 13 41 22.8 71 178 30 - 5 4 55 - 4 57 36 - 5 9 39 - 4 52 51 -0.35 32 0 0 - 5 5 21 13 41 26.1 71 181 29 - 5 9 1 - 5 1 42 - 5 13 45 - 4 56 58 -0.35 33 0 0 - 5 8 59 13 41 29.4 71 184 28 - 5 12 38 - 5 5 20 - 5 17 22 - 5 0 36 -0.35 34 0 0 - 5 12 8 13 41 32.7 71 186 27 - 5 15 48 - 5 8 29 - 5 20 31 - 5 3 45 -0.35 35 0 0 - 5 14 49 13 41 36.0 71 189 26 - 5 18 28 - 5 11 10 - 5 23 12 - 5 6 26 -0.35 36 0 0 - 5 17 1 13 41 39.3 70 192 25 - 5 20 40 - 5 13 22 - 5 25 24 - 5 8 38 -0.35 37 0 0 - 5 18 45 13 41 42.6 70 195 24 - 5 22 24 - 5 15 6 - 5 27 7 - 5 10 22 -0.35 38 0 0 - 5 20 0 13 41 45.9 70 197 23 - 5 23 39 - 5 16 21 - 5 28 23 - 5 11 38 -0.35 39 0 0 - 5 20 47 13 41 49.2 70 200 22 - 5 24 26 - 5 17 8 - 5 29 9 - 5 12 24 -0.35 40 0 0 - 5 21 5 13 41 52.4 69 202 21 - 5 24 44 - 5 17 26 - 5 29 27 - 5 12 42 -0.35 41 0 0 - 5 20 55 13 41 55.7 69 204 20 - 5 24 34 - 5 17 16 - 5 29 17 - 5 12 32 -0.35 42 0 0 - 5 20 16 13 41 59.0 68 207 19 - 5 23 55 - 5 16 37 - 5 28 38 - 5 11 53 -0.35 43 0 0 - 5 19 9 13 42 2.2 68 209 18 - 5 22 48 - 5 15 30 - 5 27 31 - 5 10 46 -0.35 44 0 0 - 5 17 33 13 42 5.4 67 211 17 - 5 21 12 - 5 13 54 - 5 25 55 - 5 9 10 -0.35 45 0 0 - 5 15 29 13 42 8.7 67 213 16 - 5 19 8 - 5 11 49 - 5 23 51 - 5 7 6 -0.35 46 0 0 - 5 12 56 13 42 11.9 66 215 15 - 5 16 35 - 5 9 17 - 5 21 19 - 5 4 33 -0.35 47 0 0 - 5 9 55 13 42 15.1 66 216 14 - 5 13 34 - 5 6 15 - 5 18 18 - 5 1 31 -0.35 48 0 0 - 5 6 25 13 42 18.3 65 218 13 - 5 10 5 - 5 2 46 - 5 14 48 - 4 58 2 -0.35 49 0 0 - 5 2 27 13 42 21.4 64 219 12 - 5 6 7 - 4 58 48 - 5 10 51 - 4 54 3 -0.35 50 0 0 - 4 58 1 13 42 24.6 64 221 11 - 5 1 41 - 4 54 21 - 5 6 25 - 4 49 37 -0.35 51 0 0 - 4 53 6 13 42 27.7 63 222 10 - 4 56 46 - 4 49 26 - 5 1 30 - 4 44 42 -0.35 52 0 0 - 4 47 43 13 42 30.8 62 223 9 - 4 51 23 - 4 44 3 - 4 56 8 - 4 39 19 -0.35 53 0 0 - 4 41 52 13 42 33.9 61 224 8 - 4 45 32 - 4 38 12 - 4 50 17 - 4 33 27 -0.35 54 0 0 - 4 35 33 13 42 37.0 61 225 7 - 4 39 13 - 4 31 53 - 4 43 58 - 4 27 7 -0.35 55 0 0 - 4 28 45 13 42 40.0 60 226 6 - 4 32 26 - 4 25 5 - 4 37 11 - 4 20 19 -0.35 56 0 0 - 4 21 30 13 42 43.1 59 227 5 - 4 25 10 - 4 17 49 - 4 29 56 - 4 13 3 -0.35 57 0 0 - 4 13 46 13 42 46.1 58 228 4 - 4 17 27 - 4 10 5 - 4 22 12 - 4 5 19 -0.35 58 0 0 - 4 5 34 13 42 49.1 57 229 3 - 4 9 15 - 4 1 53 - 4 14 1 - 3 57 7 -0.35 59 0 0 - 3 56 55 13 42 52.0 56 230 2 - 4 0 36 - 3 53 13 - 4 5 22 - 3 48 27 -0.35 60 0 0 - 3 47 47 13 42 55.0 56 231 1 - 3 51 29 - 3 44 6 - 3 56 15 - 3 39 19 -0.35 61 0 0 - 3 38 12 13 42 57.9 55 231 0 - 3 41 54 - 3 34 30 - 3 46 41 - 3 29 43 -0.35 62 0 0 - 3 28 9 13 43 0.7 54 232 -1 - 3 31 51 - 3 24 27 - 3 36 39 - 3 19 40 -0.35 63 0 0 - 3 17 39 13 43 3.6 53 233 -2 - 3 21 21 - 3 13 56 - 3 26 9 - 3 9 9 -0.35 64 0 0 - 3 6 41 13 43 6.4 52 233 -3 - 3 10 24 - 3 2 58 - 3 15 12 - 2 58 10 -0.35 65 0 0 - 2 55 16 13 43 9.2 51 234 -4 - 2 58 59 - 2 51 33 - 3 3 47 - 2 46 44 -0.35 66 0 0 - 2 43 24 13 43 11.9 50 234 -5 - 2 47 7 - 2 39 40 - 2 51 56 - 2 34 51 -0.35 67 0 0 - 2 31 4 13 43 14.7 49 235 -6 - 2 34 48 - 2 27 20 - 2 39 37 - 2 22 31 -0.35 68 0 0 - 2 18 17 13 43 17.4 48 235 -7 - 2 22 1 - 2 14 33 - 2 26 51 - 2 9 43 -0.35 69 0 0 - 2 5 4 13 43 20.0 47 235 -8 - 2 8 48 - 2 1 20 - 2 13 38 - 1 56 29 -0.35 70 0 0 - 1 51 24 13 43 22.6 46 236 -9 - 1 55 9 - 1 47 39 - 1 59 59 - 1 42 49 -0.35 71 0 0 - 1 37 18 13 43 25.2 45 236 -10 - 1 41 3 - 1 33 33 - 1 45 54 - 1 28 41 -0.35 72 0 0 - 1 22 45 13 43 27.7 44 236 -11 - 1 26 30 - 1 18 59 - 1 31 22 - 1 14 7 -0.35 73 0 0 - 1 7 46 13 43 30.2 43 237 -12 - 1 11 31 - 1 4 0 - 1 16 23 - 0 59 8 -0.35 74 0 0 - 0 52 21 13 43 32.7 42 237 -13 - 0 56 7 - 0 48 35 - 1 0 59 - 0 43 42 -0.35 75 0 0 - 0 36 30 13 43 35.1 41 237 -14 - 0 40 16 - 0 32 43 - 0 45 9 - 0 27 50 -0.35 76 0 0 - 0 20 14 13 43 37.5 40 238 -15 - 0 24 1 - 0 16 27 - 0 28 54 - 0 11 33 -0.35 77 0 0 - 0 3 32 13 43 39.8 39 238 -16 - 0 7 19 0 0 15 - 0 12 13 0 5 10 -0.35 78 0 0 0 13 35 13 43 42.1 38 238 -17 0 9 47 0 17 22 0 4 53 0 22 17 -0.35 79 0 0 0 31 6 13 43 44.3 37 238 -18 0 27 18 0 34 54 0 22 23 0 39 50 -0.35 80 0 0 0 49 2 13 43 46.5 36 238 -19 0 45 14 0 52 51 0 40 18 0 57 47 -0.35 81 0 0 1 7 23 13 43 48.6 35 239 -21 1 3 34 1 11 12 0 58 38 1 16 8 -0.35 82 0 0 1 26 7 13 43 50.7 34 239 -22 1 22 18 1 29 56 1 17 21 1 34 53 -0.35 83 0 0 1 45 15 13 43 52.8 33 239 -23 1 41 25 1 49 5 1 36 28 1 54 2 -0.35 84 0 0 2 4 46 13 43 54.8 32 239 -24 2 0 56 2 8 37 1 55 58 2 13 35 -0.35 85 0 0 2 24 41 13 43 56.7 31 239 -25 2 20 50 2 28 31 2 15 52 2 33 30 -0.35 86 0 0 2 44 58 13 43 58.6 30 240 -26 2 41 7 2 48 49 2 36 8 2 53 48 -0.35 87 0 0 3 5 37 13 44 0.4 29 240 -27 3 1 45 3 9 29 2 56 46 3 14 28 -0.35 88 0 0 3 26 38 13 44 2.2 28 240 -28 3 22 46 3 30 30 3 17 46 3 35 31 -0.35 89 0 0 3 48 1 13 44 3.9 27 240 -29 3 44 8 3 51 53 3 39 8 3 56 54 -0.35 90 0 0 4 9 45 13 44 5.5 26 240 -30 4 5 52 4 13 38 4 0 51 4 18 39 -0.35 91 0 0 4 31 49 13 44 7.1 25 240 -31 4 27 56 4 35 42 4 22 54 4 40 44 -0.35 92 0 0 4 54 14 13 44 8.7 24 241 -32 4 50 20 4 58 8 4 45 18 5 3 10 -0.35 93 0 0 5 16 58 13 44 10.1 23 241 -33 5 13 4 5 20 53 5 8 1 5 25 56 -0.35 94 0 0 5 40 2 13 44 11.5 22 241 -34 5 36 8 5 43 57 5 31 4 5 49 0 -0.35 95 0 0 6 3 25 13 44 12.9 21 241 -35 5 59 30 6 7 20 5 54 26 6 12 24 -0.35 96 0 0 6 27 5 13 44 14.2 20 241 -36 6 23 10 6 31 1 6 18 6 6 36 6 -0.35 97 0 0 6 51 4 13 44 15.4 19 241 -37 6 47 8 6 55 0 6 42 3 7 0 5 -0.35 98 0 0 7 15 19 13 44 16.5 18 242 -38 7 11 23 7 19 16 7 6 18 7 24 22 -0.35 99 0 0 7 39 52 13 44 17.6 16 242 -39 7 35 55 7 43 49 7 30 49 7 48 55 -0.35 100 0 0 8 4 40 13 44 18.7 15 242 -40 8 0 43 8 8 37 7 55 37 8 13 44 -0.35 101 0 0 8 29 44 13 44 19.6 14 242 -41 8 25 47 8 33 42 8 20 40 8 38 49 -0.35 102 0 0 8 55 3 13 44 20.5 13 242 -42 8 51 5 8 59 1 8 45 58 9 4 9 -0.35 103 0 0 9 20 36 13 44 21.3 12 242 -43 9 16 38 9 24 34 9 11 30 9 29 42 -0.35 104 0 0 9 46 22 13 44 22.1 11 243 -44 9 42 24 9 50 21 9 37 16 9 55 30 -0.35 105 0 0 10 12 22 13 44 22.8 10 243 -45 10 8 23 10 16 21 10 3 14 10 21 30 -0.35 106 0 0 10 38 34 13 44 23.4 9 243 -46 10 34 35 10 42 33 10 29 25 10 47 43 -0.35 107 0 0 11 4 57 13 44 23.9 8 243 -47 11 0 58 11 8 57 10 55 48 11 14 7 -0.35 108 0 0 11 31 32 13 44 24.4 7 243 -48 11 27 32 11 35 32 11 22 22 11 40 42 -0.35 109 0 0 11 58 16 13 44 24.8 6 244 -49 11 54 16 12 2 17 11 49 6 12 7 28 -0.35 110 0 0 12 25 11 13 44 25.1 5 244 -50 12 21 10 12 29 11 12 15 59 12 34 23 -0.35 111 0 0 12 52 14 13 44 25.4 4 244 -51 12 48 13 12 56 15 12 43 2 13 1 26 -0.35 112 0 0 13 19 25 13 44 25.6 3 244 -52 13 15 24 13 23 26 13 10 12 13 28 38 -0.36 113 0 0 13 46 43 13 44 25.7 1 245 -53 13 42 42 13 50 45 13 37 30 13 55 57 -0.36 114 0 0 14 14 9 13 44 25.8 0 245 -54 14 10 7 14 18 10 14 4 55 14 23 23 -0.42 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: HIP 85877 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 33 00.3204 DE: -24 19 26.409 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 33 00.3198 DE: -24 19 26.409 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.4 * B mag [mag]: 8.6 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (13228) 1997 SJ25 asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.006 distance from Earth [AU]: 3.01930 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): 0.020", 0.004", 95.788° remarks: * orbital elements for (13228)1997 SJ25 : Mean anomaly = 353.9840284340 deg Arg. of pericenter = 211.4332110932 deg Long. of node = 79.7549584738 deg Inclination = 2.9956113201 deg Eccentricity = 0.1617820476 Semimajor axis = 3.1644120503 AU Perihelion dist = 2.6524669895 AU Mag: H = 13.00, G = 0.15 Epoch of elements : MJD 60600.57047909 TDT (2024 Oct 17.5705) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Apr25,0.37,2024,10,17,13.691504,0.022721,0.329184,19.180367,-1.186558,0.004913,-0.000271,-0.000001,0.000000 31.7022,-24.3423,-29.06,-9.56,False HIP 85877,17.55008906,-24.3240026,8.59,8.37,8.25,0.1,0,,17.57511421,-24.3423152,10.11,9.78,0,0,0 13228,1997 SJ25,18.48,12.707,3.0193,0,0,4.088,-3.45,,1.2,0 0,353.8841,2024,10,17,211.4332,79.7550,2.9956,0.16178,3.16441,2.65247,13.00,5.0,0.15 1.647,0.0197,0.0037,96,0.0037,Known errors,0.89,0,-1,-1 20241017__85877,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:23 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org