IOTA/IOTA-ES occultation update for (24362) 2000 AR120 / UCAC4 533-046383 event on 2024 Oct 15, 20:20 UT Visible from Summary ------- On 2024 Oct 15 UT, the 17.1594500879146 km diameter asteroid (24362) 2000 AR120 will occult a 10.9 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.76 mag to 18.67 mag (the magnitude of the asteroid) for at most 0.800 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 15, 20:16 - 2024 Oct 15, 20:24 * geocentric midpoint of event [JD]: 2460599.34782904 * magnitude of target star: 10.91 * magnitude drop [mag]: 7.76 * estimated maximum duration [s]: 0.800 * Moon: 96 % sunlit, 123° distance * Sun: 80° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 0.29 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.002", 111°) * approx speed of asteroid's shadow [km/s]: 21.6703 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 533-046383 by 24362 2000 AR120 on 2024 Oct 15 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 40 0 0 56 14 51 20 16 56.8 0 60 -42 56 8 3 56 21 40 56 4 10 56 25 35 .... 41 0 0 56 34 17 20 16 56.8 1 61 -42 56 27 31 56 41 4 56 23 38 56 44 58 -0.68 42 0 0 56 53 17 20 16 56.9 2 61 -41 56 46 32 57 0 3 56 42 40 57 3 56 -0.71 43 0 0 57 11 51 20 16 57.0 2 62 -41 57 5 8 57 18 35 57 1 16 57 22 27 -0.72 44 0 0 57 29 59 20 16 57.2 3 63 -41 57 23 17 57 36 42 57 19 27 57 40 33 -0.73 45 0 0 57 47 41 20 16 57.4 3 64 -41 57 41 1 57 54 22 57 37 12 57 58 13 -0.73 46 0 0 58 4 58 20 16 57.7 4 65 -41 57 58 19 58 11 38 57 54 31 58 15 27 -0.74 47 0 0 58 21 50 20 16 58.0 5 66 -40 58 15 13 58 28 28 58 11 25 58 32 17 -0.74 48 0 0 58 38 17 20 16 58.3 5 67 -40 58 31 41 58 44 53 58 27 54 58 48 41 -0.74 49 0 0 58 54 19 20 16 58.7 6 67 -40 58 47 45 59 0 54 58 43 59 59 4 41 -0.74 50 0 0 59 9 57 20 16 59.1 6 68 -40 59 3 24 59 16 30 58 59 39 59 20 16 -0.74 51 0 0 59 25 10 20 16 59.5 7 69 -40 59 18 39 59 31 42 59 14 54 59 35 27 -0.74 52 0 0 59 39 59 20 17 0.0 7 70 -39 59 33 29 59 46 30 59 29 46 59 50 14 -0.74 53 0 0 59 54 25 20 17 0.4 8 71 -39 59 47 57 60 0 54 59 44 14 60 4 37 -0.74 54 0 0 60 8 27 20 17 1.0 9 72 -39 60 2 0 60 14 55 59 58 19 60 18 37 -0.74 55 0 0 60 22 6 20 17 1.5 9 73 -39 60 15 41 60 28 32 60 12 0 60 32 14 -0.74 56 0 0 60 35 22 20 17 2.1 10 74 -38 60 28 58 60 41 47 60 25 18 60 45 28 -0.74 57 0 0 60 48 16 20 17 2.7 10 74 -38 60 41 53 60 54 39 60 38 14 60 58 19 -0.74 58 0 0 61 0 47 20 17 3.3 11 75 -38 60 54 26 61 7 8 60 50 47 61 10 48 -0.74 59 0 0 61 12 56 20 17 3.9 11 76 -38 61 6 36 61 19 16 61 2 58 61 22 54 -0.74 60 0 0 61 24 43 20 17 4.6 12 77 -37 61 18 24 61 31 2 61 14 47 61 34 39 -0.74 61 0 0 61 36 8 20 17 5.3 12 78 -37 61 29 51 61 42 26 61 26 15 61 46 3 -0.74 62 0 0 61 47 13 20 17 6.0 13 79 -37 61 40 57 61 53 29 61 37 22 61 57 5 -0.74 63 0 0 61 57 56 20 17 6.8 13 80 -36 61 51 41 62 4 11 61 48 7 62 7 46 -0.74 64 0 0 62 8 18 20 17 7.5 14 81 -36 62 2 5 62 14 32 61 58 31 62 18 7 -0.74 65 0 0 62 18 20 20 17 8.3 14 82 -36 62 12 8 62 24 33 62 8 35 62 28 7 -0.74 66 0 0 62 28 2 20 17 9.1 15 82 -36 62 21 51 62 34 13 62 18 19 62 37 46 -0.74 67 0 0 62 37 23 20 17 9.9 15 83 -35 62 31 14 62 43 34 62 27 42 62 47 6 -0.74 68 0 0 62 46 25 20 17 10.7 16 84 -35 62 40 17 62 52 34 62 36 46 62 56 6 -0.74 69 0 0 62 55 7 20 17 11.6 16 85 -35 62 49 0 63 1 15 62 45 30 63 4 47 -0.74 70 0 0 63 3 30 20 17 12.4 17 86 -34 62 57 24 63 9 37 62 53 54 63 13 8 -0.74 71 0 0 63 11 34 20 17 13.3 17 87 -34 63 5 29 63 17 40 63 2 0 63 21 10 -0.74 72 0 0 63 19 19 20 17 14.2 18 88 -34 63 13 15 63 25 24 63 9 46 63 28 53 -0.74 73 0 0 63 26 45 20 17 15.1 18 89 -34 63 20 42 63 32 49 63 17 14 63 36 18 -0.74 74 0 0 63 33 53 20 17 16.1 18 90 -33 63 27 51 63 39 56 63 24 23 63 43 24 -0.74 75 0 0 63 40 42 20 17 17.0 19 91 -33 63 34 41 63 46 44 63 31 14 63 50 12 -0.74 76 0 0 63 47 13 20 17 18.0 19 92 -33 63 41 13 63 53 14 63 37 46 63 56 42 -0.74 77 0 0 63 53 27 20 17 19.0 20 93 -32 63 47 27 63 59 27 63 44 1 64 2 54 -0.74 78 0 0 63 59 22 20 17 20.0 20 94 -32 63 53 24 64 5 22 63 49 58 64 8 48 -0.74 79 0 0 64 5 0 20 17 21.0 21 95 -32 63 59 2 64 10 59 63 55 37 64 14 25 -0.74 80 0 0 64 10 21 20 17 22.0 21 96 -31 64 4 24 64 16 19 64 0 59 64 19 44 -0.74 81 0 0 64 15 24 20 17 23.0 21 96 -31 64 9 28 64 21 21 64 6 4 64 24 46 -0.74 82 0 0 64 20 11 20 17 24.1 22 97 -31 64 14 15 64 26 7 64 10 51 64 29 32 -0.74 83 0 0 64 24 40 20 17 25.2 22 98 -30 64 18 45 64 30 36 64 15 21 64 34 0 -0.74 84 0 0 64 28 52 20 17 26.3 23 99 -30 64 22 58 64 34 47 64 19 34 64 38 11 -0.74 85 0 0 64 32 48 20 17 27.4 23 100 -30 64 26 54 64 38 42 64 23 31 64 42 6 -0.74 86 0 0 64 36 27 20 17 28.5 24 101 -29 64 30 33 64 42 21 64 27 11 64 45 44 -0.74 87 0 0 64 39 50 20 17 29.6 24 102 -29 64 33 57 64 45 43 64 30 34 64 49 6 -0.74 88 0 0 64 42 56 20 17 30.7 24 103 -29 64 37 3 64 48 49 64 33 41 64 52 11 -0.74 89 0 0 64 45 45 20 17 31.9 25 104 -29 64 39 53 64 51 38 64 36 32 64 55 0 -0.74 90 0 0 64 48 19 20 17 33.1 25 105 -28 64 42 27 64 54 11 64 39 6 64 57 33 -0.74 91 0 0 64 50 36 20 17 34.3 26 106 -28 64 44 45 64 56 28 64 41 24 64 59 50 -0.74 92 0 0 64 52 38 20 17 35.5 26 107 -28 64 46 47 64 58 29 64 43 25 65 1 51 -0.74 93 0 0 64 54 23 20 17 36.7 26 108 -27 64 48 32 65 0 14 64 45 11 65 3 36 -0.74 94 0 0 64 55 52 20 17 37.9 27 109 -27 64 50 2 65 1 43 64 46 41 65 5 5 -0.74 95 0 0 64 57 6 20 17 39.1 27 110 -27 64 51 15 65 2 56 64 47 54 65 6 18 -0.74 96 0 0 64 58 3 20 17 40.4 28 111 -26 64 52 13 65 3 54 64 48 52 65 7 15 -0.74 97 0 0 64 58 45 20 17 41.7 28 112 -26 64 52 54 65 4 35 64 49 34 65 7 56 -0.74 98 0 0 64 59 10 20 17 43.0 28 113 -26 64 53 20 65 5 1 64 50 0 65 8 22 -0.74 99 0 0 64 59 20 20 17 44.3 29 114 -25 64 53 30 65 5 10 64 50 9 65 8 32 -0.74 100 0 0 64 59 14 20 17 45.6 29 115 -25 64 53 24 65 5 4 64 50 3 65 8 26 -0.74 101 0 0 64 58 52 20 17 47.0 30 116 -25 64 53 2 65 4 43 64 49 41 65 8 4 -0.74 102 0 0 64 58 14 20 17 48.3 30 117 -24 64 52 24 65 4 5 64 49 3 65 7 26 -0.74 103 0 0 64 57 21 20 17 49.7 30 118 -24 64 51 30 65 3 11 64 48 10 65 6 33 -0.74 104 0 0 64 56 11 20 17 51.1 31 119 -23 64 50 20 65 2 2 64 47 0 65 5 23 -0.74 105 0 0 64 54 45 20 17 52.5 31 120 -23 64 48 55 65 0 36 64 45 34 65 3 58 -0.74 106 0 0 64 53 4 20 17 53.9 31 121 -23 64 47 13 64 58 55 64 43 52 65 2 17 -0.74 107 0 0 64 51 6 20 17 55.4 32 122 -22 64 45 15 64 56 57 64 41 54 65 0 19 -0.74 108 0 0 64 48 52 20 17 56.8 32 123 -22 64 43 1 64 54 44 64 39 39 64 58 6 -0.74 109 0 0 64 46 22 20 17 58.3 33 124 -22 64 40 30 64 52 14 64 37 9 64 55 36 -0.74 110 0 0 64 43 36 20 17 59.8 33 125 -21 64 37 44 64 49 28 64 34 22 64 52 51 -0.74 111 0 0 64 40 33 20 18 1.4 33 126 -21 64 34 40 64 46 26 64 31 18 64 49 49 -0.74 112 0 0 64 37 14 20 18 2.9 34 127 -21 64 31 21 64 43 7 64 27 59 64 46 30 -0.74 113 0 0 64 33 38 20 18 4.5 34 129 -20 64 27 45 64 39 32 64 24 22 64 42 55 -0.74 114 0 0 64 29 46 20 18 6.1 34 130 -20 64 23 52 64 35 40 64 20 29 64 39 4 -0.74 115 0 0 64 25 36 20 18 7.7 35 131 -19 64 19 42 64 31 31 64 16 19 64 34 55 -0.74 116 0 0 64 21 10 20 18 9.3 35 132 -19 64 15 15 64 27 6 64 11 52 64 30 30 -0.74 117 0 0 64 16 27 20 18 10.9 36 133 -19 64 10 31 64 22 23 64 7 7 64 25 48 -0.74 118 0 0 64 11 26 20 18 12.6 36 134 -18 64 5 30 64 17 23 64 2 6 64 20 48 -0.74 119 0 0 64 6 9 20 18 14.3 36 135 -18 64 0 11 64 12 6 63 56 47 64 15 32 -0.74 120 0 0 64 0 33 20 18 16.1 37 136 -17 63 54 35 64 6 32 63 51 10 64 9 57 -0.74 121 0 0 63 54 40 20 18 17.8 37 137 -17 63 48 41 64 0 39 63 45 16 64 4 6 -0.74 122 0 0 63 48 29 20 18 19.6 37 138 -17 63 42 29 63 54 29 63 39 3 63 57 56 -0.74 123 0 0 63 42 0 20 18 21.4 38 139 -16 63 36 0 63 48 1 63 32 33 63 51 28 -0.74 124 0 0 63 35 13 20 18 23.2 38 140 -16 63 29 11 63 41 14 63 25 44 63 44 42 -0.74 125 0 0 63 28 7 20 18 25.1 39 142 -15 63 22 5 63 34 10 63 18 37 63 37 38 -0.74 126 0 0 63 20 42 20 18 27.0 39 143 -15 63 14 39 63 26 46 63 11 11 63 30 15 -0.74 127 0 0 63 12 59 20 18 28.9 39 144 -15 63 6 55 63 19 4 63 3 26 63 22 33 -0.74 128 0 0 63 4 56 20 18 30.8 40 145 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57 56 -0.74 154 0 0 57 29 31 20 19 34.3 49 179 -1 57 22 50 57 36 13 57 19 0 57 40 4 -0.74 155 0 0 57 11 9 20 19 37.4 49 180 0 57 4 26 57 17 52 57 0 35 57 21 44 -0.74 156 0 0 56 52 20 20 19 40.5 50 181 0 56 45 36 56 59 5 56 41 44 57 2 58 -0.74 157 0 0 56 33 4 20 19 43.6 50 183 1 56 26 18 56 39 51 56 22 25 56 43 44 -0.74 158 0 0 56 13 21 20 19 46.9 50 185 2 56 6 33 56 20 9 56 2 40 56 24 4 -0.74 159 0 0 55 53 10 20 19 50.1 51 186 2 55 46 21 56 0 0 55 42 26 56 3 55 -0.74 160 0 0 55 32 31 20 19 53.4 51 188 3 55 25 41 55 39 23 55 21 45 55 43 19 -0.74 161 0 0 55 11 25 20 19 56.8 51 189 4 55 4 33 55 18 18 55 0 37 55 22 15 -0.74 162 0 0 54 49 51 20 20 0.2 51 191 4 54 42 57 54 56 45 54 39 0 55 0 43 -0.74 163 0 0 54 27 48 20 20 3.7 52 193 5 54 20 53 54 34 44 54 16 55 54 38 43 -0.74 164 0 0 54 5 17 20 20 7.2 52 194 6 53 58 21 54 12 15 53 54 22 54 16 15 -0.75 165 0 0 53 42 18 20 20 10.8 52 196 6 53 35 20 53 49 17 53 31 21 53 53 18 -0.75 166 0 0 53 18 51 20 20 14.5 52 198 7 53 11 51 53 25 51 53 7 51 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33 51 0 -0.76 -155 0 0 33 4 40 20 23 5.7 41 263 42 32 57 31 33 11 50 32 53 25 33 15 57 -0.76 -154 0 0 32 29 41 20 23 10.0 41 264 42 32 22 33 32 36 50 32 18 28 32 40 56 -0.76 -153 0 0 31 54 47 20 23 14.3 40 265 43 31 47 40 32 1 55 31 43 36 32 6 0 -0.76 -152 0 0 31 19 59 20 23 18.6 39 266 44 31 12 54 31 27 6 31 8 50 31 31 10 -0.76 -151 0 0 30 45 19 20 23 22.8 38 267 45 30 38 14 30 52 24 30 34 11 30 56 28 -0.76 -150 0 0 30 10 47 20 23 26.9 37 268 46 30 3 44 30 17 51 29 59 41 30 21 54 -0.76 -149 0 0 29 36 25 20 23 30.9 36 269 47 29 29 23 29 43 27 29 25 22 29 47 30 -0.76 -148 0 0 29 2 14 20 23 34.9 36 270 48 28 55 14 29 9 15 28 51 13 29 13 17 -0.76 -147 0 0 28 28 16 20 23 38.8 35 271 49 28 21 17 28 35 15 28 17 17 28 39 17 -0.76 -146 0 0 27 54 31 20 23 42.6 34 272 50 27 47 34 28 1 29 27 43 34 28 5 30 -0.77 -145 0 0 27 21 1 20 23 46.3 33 273 51 27 14 5 27 27 58 27 10 7 27 31 57 -0.77 -144 0 0 26 47 47 20 23 50.0 32 274 52 26 40 53 26 54 43 26 36 55 26 58 41 -0.77 -143 0 0 26 14 51 20 23 53.5 31 274 53 26 7 57 26 21 44 26 4 1 26 25 42 -0.77 -142 0 0 25 42 12 20 23 57.0 30 275 53 25 35 20 25 49 4 25 31 24 25 53 1 -0.77 -141 0 0 25 9 52 20 24 0.3 29 276 54 25 3 2 25 16 43 24 59 7 25 20 39 -0.77 -140 0 0 24 37 53 20 24 3.6 28 276 55 24 31 5 24 44 42 24 27 11 24 48 38 -0.77 -139 0 0 24 6 15 20 24 6.7 27 277 56 23 59 28 24 13 3 23 55 35 24 16 57 -0.77 -138 0 0 23 34 59 20 24 9.8 26 278 57 23 28 14 23 41 46 23 24 22 23 45 39 -0.77 -137 0 0 23 4 7 20 24 12.8 25 278 57 22 57 23 23 10 51 22 53 31 23 14 44 -0.77 -136 0 0 22 33 38 20 24 15.6 24 279 58 22 26 56 22 40 21 22 23 5 22 44 12 -0.77 -135 0 0 22 3 34 20 24 18.3 23 279 59 21 56 53 22 10 15 21 53 3 22 14 6 -0.78 -134 0 0 21 33 55 20 24 20.9 22 280 59 21 27 16 21 40 35 21 23 27 21 44 25 -0.78 -133 0 0 21 4 43 20 24 23.4 21 280 60 20 58 6 21 11 21 20 54 18 21 15 10 -0.78 -132 0 0 20 35 58 20 24 25.8 20 281 60 20 29 22 20 42 35 20 25 35 20 46 23 -0.78 -131 0 0 20 7 41 20 24 28.1 19 281 61 20 1 6 20 14 16 19 57 20 20 18 3 -0.78 -130 0 0 19 39 52 20 24 30.3 18 282 61 19 33 19 19 46 25 19 29 34 19 50 11 -0.78 -129 0 0 19 12 32 20 24 32.3 17 282 62 19 6 0 19 19 4 19 2 16 19 22 49 -0.78 -128 0 0 18 45 42 20 24 34.2 16 282 62 18 39 12 18 52 12 18 35 28 18 55 57 -0.79 -127 0 0 18 19 22 20 24 36.0 15 283 63 18 12 53 18 25 51 18 9 11 18 29 34 -0.79 -126 0 0 17 53 32 20 24 37.7 14 283 63 17 47 5 18 0 0 17 43 23 18 3 42 -0.79 -125 0 0 17 28 14 20 24 39.3 13 284 63 17 21 48 17 34 40 17 18 7 17 38 22 -0.79 -124 0 0 17 3 27 20 24 40.7 12 284 63 16 57 3 17 9 52 16 53 23 17 13 33 -0.80 -123 0 0 16 39 13 20 24 42.0 11 284 64 16 32 50 16 45 36 16 29 11 16 49 16 -0.80 -122 0 0 16 15 30 20 24 43.2 10 284 64 16 9 9 16 21 52 16 5 31 16 25 32 -0.81 -121 0 0 15 52 21 20 24 44.3 9 285 64 15 46 1 15 58 42 15 42 24 16 2 20 -0.81 -120 0 0 15 29 45 20 24 45.3 8 285 64 15 23 26 15 36 4 15 19 50 15 39 42 -0.82 -119 0 0 15 7 42 20 24 46.1 7 285 64 15 1 25 15 14 0 14 57 49 15 17 37 -0.83 -118 0 0 14 46 14 20 24 46.9 6 286 64 14 39 58 14 52 30 14 36 22 14 56 6 -0.84 -117 0 0 14 25 19 20 24 47.5 5 286 63 14 19 4 14 31 34 14 15 29 14 35 9 -0.86 -116 0 0 14 4 58 20 24 47.9 4 286 63 13 58 45 14 11 12 13 55 11 14 14 47 -0.89 -115 0 0 13 45 12 20 24 48.3 3 286 63 13 39 0 13 51 25 13 35 27 13 54 59 -0.95 -114 0 0 13 26 1 20 24 48.5 2 287 63 13 19 50 13 32 13 13 16 17 13 35 46 -1.07 -113 0 0 13 7 25 20 24 48.7 1 287 62 13 1 15 13 13 35 12 57 43 13 17 8 -1.60 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 533-046383 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 17 39.7480 DE: +16 35 44.595 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 17 39.7480 DE: +16 35 44.595 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.9 * B mag [mag]: 11.7 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (24362) 2000 AR120 asteroid class: approx. diameter [km]: 17 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.84790 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#44 date of fit: 2022 Nov 26 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): 0.016", 0.002", 111.476° remarks: * orbital elements for (24362)2000 AR120 : Mean anomaly = 37.8859099262 deg Arg. of pericenter = 159.8121661393 deg Long. of node = 262.5793576027 deg Inclination = 8.7046818573 deg Eccentricity = 0.0355485094 Semimajor axis = 2.9264232665 AU Perihelion dist = 2.8223932814 AU Mag: H = 13.12, G = 0.15 Epoch of elements : MJD 60598.84782833 TDT (2024 Oct 15.8478) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#442022Nov26,0.80,2024,10,15,20.347897,0.234351,0.547605,11.247265,-4.806632,-0.005541,0.001238,0.000000,0.000000 154.6933,16.5202,-128.82,-8.93,False UCAC4 533-046383,8.29437441,16.5957209,11.73,10.91,10.47,0.1,0,,8.31772096,16.5202322,7.76,7.75,0,0,0 24362,2000 AR120,18.67,17.366,2.8479,0,0,2.415,-14.84,,1.4,0 0,37.7190,2024,10,15,159.8122,262.5794,8.7047,0.03555,2.92642,2.82239,13.12,5.0,0.15 1.287,0.0157,0.0024,111,0.0024,Known errors,1.18,0,-1,-1 20241015_046383,60140.64 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:17 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org