IOTA/IOTA-ES occultation update for (470309) 2007 JK43 / UCAC4 507-076920 event on 2023 May 12, 20:29 UT Visible from Summary ------- On 2023 May 12 UT, the 131.8 km diameter asteroid (470309) 2007 JK43 will occult a 14.9 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 6.63 mag to 21.56 mag (the magnitude of the asteroid) for at most 6.210 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: 6 * date and approx. time of event: 2023 May 12, 20:23 - 2023 May 12, 20:33 * geocentric midpoint of event [JD]: 2460077.35317025 * magnitude of target star: 14.93 * magnitude drop [mag]: 6.63 * estimated maximum duration [s]: 6.210 * Moon: 47 % sunlit, 60° distance * Sun: 125° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 133 * 1 sigma uncertainty interval [path widths]: +/- 10.40 * 1 sigma uncertainty interval [seconds]: +/- 33.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.071, +/- 0.046) * 1 sigma uncertainty ellipse (major, minor, PA): (0.079", 0.031", 63°) * approx speed of asteroid's shadow [km/s]: 21.2293 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 507-076920 by 470309 2007 JK43 on 2023 May 12 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 ' " Longitude Longitude Longitude Longitude .. .. .. -50 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 175 48 29 .... .. .. .. -49 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 171 31 6 .... .. .. .. -48 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 167 51 16 .... .. .. .. -47 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 164 37 26 .... .. .. .. -46 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 161 43 2 .... .. .. .. -45 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 159 3 47 .... .. .. .. -44 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 156 36 49 .... .. .. .. -43 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 154 20 1 .... .. .. .. -42 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 152 11 48 .... .. .. .. -41 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 150 10 55 .... .. .. .. -40 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 148 16 26 .... .. .. .. -39 0 0 .. .. .... .. .. .. ... .. .. ... .. .. ... .. .. 146 27 31 .... .. .. .. -38 0 0 .. .. .... .. .. .. ... .. .. -179 58 36 ... .. .. 144 43 32 .... 178 20 46 -37 0 0 20 23 35.7 3 286 14 -178 52 15 175 50 43 ... .. .. 143 3 56 .... 174 28 50 -36 0 0 20 23 37.0 6 288 13 176 49 18 172 18 40 ... .. .. 141 28 15 -0.09 Latitude Latitude Latitude Latitude 173 0 0 -35 34 17 20 23 37.7 7 289 12 -34 56 9 -36 12 23 -21 23 30 -49 21 56 -0.10 172 0 0 -35 16 3 20 23 38.3 8 290 11 -34 37 45 -35 54 18 -21 1 26 -49 7 16 -0.11 171 0 0 -34 57 5 20 23 39.0 9 290 11 -34 18 37 -35 35 30 -20 38 32 -48 52 1 -0.11 170 0 0 -34 37 24 20 23 39.8 10 291 10 -33 58 45 -35 16 0 -20 14 46 -48 36 9 -0.10 169 0 0 -34 16 59 20 23 40.6 11 292 10 -33 38 9 -34 55 45 -19 50 9 -48 19 39 -0.10 168 0 0 -33 55 49 20 23 41.5 12 292 9 -33 16 48 -34 34 47 -19 24 39 -48 2 33 -0.10 167 0 0 -33 33 54 20 23 42.5 12 293 9 -32 54 41 -34 13 3 -18 58 16 -47 44 48 -0.10 166 0 0 -33 11 13 20 23 43.5 13 293 8 -32 31 49 -33 50 34 -18 31 1 -47 26 24 -0.10 165 0 0 -32 47 46 20 23 44.7 14 294 7 -32 8 10 -33 27 19 -18 2 51 -47 7 20 -0.10 164 0 0 -32 23 32 20 23 45.9 15 294 7 -31 43 43 -33 3 17 -17 33 47 -46 47 37 -0.10 163 0 0 -31 58 30 20 23 47.3 16 295 6 -31 18 29 -32 38 29 -17 3 49 -46 27 12 -0.10 162 0 0 -31 32 41 20 23 48.7 17 295 6 -30 52 27 -32 12 52 -16 32 55 -46 6 6 -0.10 161 0 0 -31 6 3 20 23 50.2 18 296 5 -30 25 36 -31 46 28 -16 1 6 -45 44 17 -0.10 160 0 0 -30 38 36 20 23 51.8 19 296 5 -29 57 55 -31 19 14 -15 28 22 -45 21 46 -0.10 159 0 0 -30 10 20 20 23 53.6 20 297 4 -29 29 25 -30 51 12 -14 54 40 -44 58 31 -0.10 158 0 0 -29 41 13 20 23 55.4 21 297 3 -29 0 4 -30 22 19 -14 20 3 -44 34 31 -0.10 157 0 0 -29 11 16 20 23 57.3 22 298 3 -28 29 52 -29 52 36 -13 44 28 -44 9 46 -0.10 156 0 0 -28 40 27 20 23 59.3 23 298 2 -27 58 49 -29 22 2 -13 7 56 -43 44 15 -0.10 155 0 0 -28 8 47 20 24 1.5 24 299 2 -27 26 53 -28 50 36 -12 30 26 -43 17 58 -0.10 154 0 0 -27 36 14 20 24 3.7 25 299 1 -26 54 6 -28 18 19 -11 51 59 -42 50 53 -0.10 153 0 0 -27 2 49 20 24 6.1 26 300 0 -26 20 26 -27 45 9 -11 12 34 -42 23 0 -0.10 152 0 0 -26 28 31 20 24 8.6 27 300 0 -25 45 52 -27 11 7 -10 32 11 -41 54 18 -0.10 151 0 0 -25 53 20 20 24 11.2 28 300 -1 -25 10 25 -26 36 11 - 9 50 50 -41 24 46 -0.10 150 0 0 -25 17 15 20 24 13.9 29 301 -2 -24 34 5 -26 0 22 - 9 8 32 -40 54 25 -0.10 149 0 0 -24 40 17 20 24 16.7 30 301 -2 -23 56 50 -25 23 39 - 8 25 15 -40 23 12 -0.10 148 0 0 -24 2 24 20 24 19.7 31 301 -3 -23 18 41 -24 46 2 - 7 41 1 -39 51 8 -0.10 147 0 0 -23 23 37 20 24 22.8 33 302 -4 -22 39 38 -24 7 31 - 6 55 50 -39 18 12 -0.10 146 0 0 -22 43 55 20 24 26.0 34 302 -4 -21 59 40 -23 28 6 - 6 9 41 -38 44 23 -0.10 145 0 0 -22 3 19 20 24 29.4 35 302 -5 -21 18 48 -22 47 46 - 5 22 36 -38 9 41 -0.10 144 0 0 -21 21 49 20 24 32.9 36 303 -6 -20 37 1 -22 6 32 - 4 34 35 -37 34 5 -0.10 143 0 0 -20 39 24 20 24 36.5 37 303 -6 -19 54 20 -21 24 24 - 3 45 39 -36 57 35 -0.10 142 0 0 -19 56 5 20 24 40.3 38 303 -7 -19 10 45 -20 41 21 - 2 55 48 -36 20 10 -0.10 141 0 0 -19 11 53 20 24 44.2 39 304 -8 -18 26 16 -19 57 25 - 2 5 3 -35 41 51 -0.10 140 0 0 -18 26 47 20 24 48.2 41 304 -8 -17 40 54 -19 12 35 - 1 13 26 -35 2 36 -0.10 139 0 0 -17 40 48 20 24 52.4 42 304 -9 -16 54 39 -18 26 52 - 0 20 58 -34 22 26 -0.10 138 0 0 -16 53 56 20 24 56.7 43 304 -10 -16 7 31 -17 40 16 0 32 21 -33 41 20 -0.10 137 0 0 -16 6 13 20 25 1.2 44 304 -10 -15 19 32 -16 52 49 1 26 29 -32 59 19 -0.10 136 0 0 -15 17 39 20 25 5.8 46 305 -11 -14 30 42 -16 4 30 2 21 24 -32 16 23 -0.10 135 0 0 -14 28 14 20 25 10.6 47 305 -12 -13 41 2 -15 15 21 3 17 5 -31 32 32 -0.10 134 0 0 -13 38 1 20 25 15.5 48 305 -12 -12 50 34 -14 25 23 4 13 29 -30 47 45 -0.10 133 0 0 -12 47 0 20 25 20.5 49 305 -13 -11 59 18 -13 34 37 5 10 36 -30 2 4 -0.10 132 0 0 -11 55 12 20 25 25.7 51 305 -14 -11 7 15 -12 43 3 6 8 22 -29 15 29 -0.10 131 0 0 -11 2 39 20 25 31.0 52 305 -14 -10 14 28 -11 50 44 7 6 45 -28 28 0 -0.10 130 0 0 -10 9 22 20 25 36.4 53 305 -15 - 9 20 57 -10 57 41 8 5 44 -27 39 39 -0.10 129 0 0 - 9 15 23 20 25 42.0 54 305 -16 - 8 26 45 -10 3 56 9 5 15 -26 50 26 -0.10 128 0 0 - 8 20 44 20 25 47.8 56 304 -16 - 7 31 53 - 9 9 30 10 5 16 -26 0 23 -0.10 127 0 0 - 7 25 27 20 25 53.6 57 304 -17 - 6 36 23 - 8 14 25 11 5 44 -25 9 30 -0.10 126 0 0 - 6 29 33 20 25 59.6 58 304 -18 - 5 40 18 - 7 18 43 12 6 36 -24 17 48 -0.10 125 0 0 - 5 33 5 20 26 5.7 60 304 -18 - 4 43 39 - 6 22 26 13 7 49 -23 25 20 -0.10 124 0 0 - 4 36 6 20 26 11.9 61 303 -19 - 3 46 28 - 5 25 37 14 9 21 -22 32 6 -0.10 123 0 0 - 3 38 37 20 26 18.2 62 303 -20 - 2 48 49 - 4 28 18 15 11 7 -21 38 9 -0.10 122 0 0 - 2 40 41 20 26 24.6 64 302 -20 - 1 50 44 - 3 30 32 16 13 4 -20 43 31 -0.10 121 0 0 - 1 42 20 20 26 31.1 65 302 -21 - 0 52 15 - 2 32 20 17 15 9 -19 48 12 -0.10 120 0 0 - 0 43 39 20 26 37.7 66 301 -21 0 6 35 - 1 33 46 18 17 19 -18 52 17 -0.10 119 0 0 0 15 22 20 26 44.4 68 300 -22 1 5 43 - 0 34 53 19 19 30 -17 55 46 -0.10 118 0 0 1 14 39 20 26 51.2 69 299 -23 2 5 6 0 24 18 20 21 39 -16 58 42 -0.10 117 0 0 2 14 8 20 26 58.0 70 298 -23 3 4 42 1 23 42 21 23 41 -16 1 8 -0.10 116 0 0 3 13 48 20 27 4.9 72 297 -24 4 4 26 2 23 16 22 25 34 -15 3 7 -0.10 115 0 0 4 13 35 20 27 11.9 73 296 -24 5 4 17 3 22 59 23 27 13 -14 4 40 -0.10 114 0 0 5 13 25 20 27 18.9 74 294 -25 6 4 11 4 22 46 24 28 36 -13 5 52 -0.10 113 0 0 6 13 17 20 27 25.9 76 292 -25 7 4 5 5 22 35 25 29 38 -12 6 44 -0.10 112 0 0 7 13 6 20 27 33.0 77 289 -26 8 3 55 6 22 23 26 30 18 -11 7 20 -0.10 111 0 0 8 12 50 20 27 40.1 78 286 -26 9 3 40 7 22 6 27 30 30 -10 7 43 -0.10 110 0 0 9 12 25 20 27 47.2 79 282 -27 10 3 15 8 21 42 28 30 12 - 9 7 56 -0.10 109 0 0 10 11 49 20 27 54.3 80 278 -27 11 2 38 9 21 6 29 29 21 - 8 8 2 -0.10 108 0 0 11 10 58 20 28 1.4 81 272 -28 12 1 45 10 20 18 30 27 54 - 7 8 4 -0.10 107 0 0 12 9 50 20 28 8.6 82 265 -28 13 0 35 11 19 12 31 25 47 - 6 8 6 -0.10 106 0 0 13 8 22 20 28 15.6 83 256 -28 13 59 3 12 17 48 32 22 59 - 5 8 9 -0.11 105 0 0 14 6 31 20 28 22.7 84 245 -29 14 57 7 13 16 1 33 19 27 - 4 8 19 -0.11 104 0 0 15 4 13 20 28 29.7 84 233 -29 15 54 45 14 13 49 34 15 8 - 3 8 36 -0.11 103 0 0 16 1 28 20 28 36.7 84 220 -29 16 51 53 15 11 9 35 10 1 - 2 9 6 -0.11 102 0 0 16 58 11 20 28 43.7 84 208 -29 17 48 30 16 8 0 36 4 2 - 1 9 50 -0.11 101 0 0 17 54 22 20 28 50.5 83 197 -30 18 44 33 17 4 17 36 57 11 - 0 10 51 -0.11 100 0 0 18 49 56 20 28 57.4 82 188 -30 19 39 59 18 0 0 37 49 26 0 47 47 -0.11 99 0 0 19 44 53 20 29 4.1 82 180 -30 20 34 47 18 55 6 38 40 44 1 46 2 -0.11 98 0 0 20 39 11 20 29 10.8 81 174 -30 21 28 55 19 49 33 39 31 6 2 43 52 -0.11 97 0 0 21 32 46 20 29 17.4 80 170 -31 22 22 20 20 43 19 40 20 29 3 41 14 -0.11 96 0 0 22 25 38 20 29 23.9 79 166 -31 23 15 1 21 36 22 41 8 53 4 38 5 -0.11 95 0 0 23 17 45 20 29 30.3 77 162 -31 24 6 57 22 28 41 41 56 18 5 34 22 -0.11 94 0 0 24 9 6 20 29 36.6 76 159 -31 24 58 5 23 20 13 42 42 41 6 30 5 -0.11 93 0 0 24 59 39 20 29 42.9 75 157 -31 25 48 25 24 10 59 43 28 4 7 25 11 -0.11 92 0 0 25 49 23 20 29 49.0 74 155 -31 26 37 56 25 0 55 44 12 25 8 19 38 -0.11 91 0 0 26 38 16 20 29 55.1 73 153 -31 27 26 36 25 50 2 44 55 45 9 13 23 -0.11 90 0 0 27 26 19 20 30 1.0 72 151 -31 28 14 24 26 38 19 45 38 4 10 6 26 -0.11 89 0 0 28 13 29 20 30 6.8 71 150 -31 29 1 21 27 25 44 46 19 21 10 58 45 -0.11 88 0 0 28 59 47 20 30 12.5 70 148 -31 29 47 24 28 12 16 46 59 38 11 50 18 -0.11 87 0 0 29 45 12 20 30 18.1 69 147 -31 30 32 34 28 57 56 47 38 53 12 41 5 -0.11 86 0 0 30 29 43 20 30 23.6 68 146 -31 31 16 50 29 42 43 48 17 8 13 31 3 -0.11 85 0 0 31 13 21 20 30 29.0 66 145 -31 32 0 12 30 26 35 48 54 24 14 20 12 -0.11 84 0 0 31 56 4 20 30 34.3 65 143 -31 32 42 39 31 9 34 49 30 40 15 8 31 -0.11 83 0 0 32 37 52 20 30 39.4 64 142 -31 33 24 12 31 51 39 50 5 59 15 56 0 -0.11 82 0 0 33 18 47 20 30 44.5 63 141 -31 34 4 50 32 32 49 50 40 19 16 42 36 -0.11 81 0 0 33 58 46 20 30 49.4 62 140 -31 34 44 33 33 13 5 51 13 43 17 28 21 -0.11 80 0 0 34 37 52 20 30 54.2 61 140 -31 35 23 23 33 52 26 51 46 10 18 13 13 -0.11 79 0 0 35 16 3 20 30 58.9 60 139 -31 36 1 18 34 30 54 52 17 43 18 57 11 -0.11 78 0 0 35 53 21 20 31 3.5 59 138 -30 36 38 19 35 8 27 52 48 21 19 40 16 -0.11 77 0 0 36 29 45 20 31 8.0 58 137 -30 37 14 26 35 45 8 53 18 7 20 22 28 -0.11 76 0 0 37 5 15 20 31 12.4 57 136 -30 37 49 41 36 20 55 53 47 0 21 3 46 -0.11 75 0 0 37 39 53 20 31 16.7 56 135 -30 38 24 2 36 55 49 54 15 2 21 44 10 -0.11 74 0 0 38 13 39 20 31 20.9 55 134 -30 38 57 32 37 29 50 54 42 14 22 23 40 -0.11 73 0 0 38 46 32 20 31 25.0 54 134 -30 39 30 9 38 3 0 55 8 37 23 2 16 -0.11 72 0 0 39 18 35 20 31 28.9 54 133 -29 40 1 56 38 35 18 55 34 11 23 39 59 -0.11 71 0 0 39 49 47 20 31 32.8 53 132 -29 40 32 52 39 6 46 55 58 59 24 16 48 -0.11 70 0 0 40 20 8 20 31 36.6 52 131 -29 41 2 58 39 37 23 56 23 1 24 52 43 -0.11 69 0 0 40 49 41 20 31 40.3 51 130 -29 41 32 14 40 7 11 56 46 18 25 27 46 -0.11 68 0 0 41 18 24 20 31 43.9 50 130 -29 42 0 43 40 36 10 57 8 51 26 1 56 -0.11 67 0 0 41 46 19 20 31 47.4 49 129 -28 42 28 23 41 4 20 57 30 41 26 35 14 -0.11 66 0 0 42 13 27 20 31 50.8 48 128 -28 42 55 15 41 31 43 57 51 49 27 7 40 -0.11 65 0 0 42 39 48 20 31 54.1 47 127 -28 43 21 22 41 58 19 58 12 16 27 39 14 -0.11 64 0 0 43 5 23 20 31 57.3 47 126 -28 43 46 42 42 24 8 58 32 3 28 9 58 -0.11 63 0 0 43 30 13 20 32 0.5 46 126 -27 44 11 17 42 49 12 58 51 11 28 39 51 -0.11 62 0 0 43 54 18 20 32 3.6 45 125 -27 44 35 8 43 13 30 59 9 40 29 8 53 -0.11 61 0 0 44 17 38 20 32 6.6 44 124 -27 44 58 15 43 37 5 59 27 33 29 37 7 -0.11 60 0 0 44 40 16 20 32 9.5 43 123 -27 45 20 39 43 59 56 59 44 49 30 4 31 -0.11 59 0 0 45 2 11 20 32 12.3 43 123 -26 45 42 21 44 22 4 60 1 29 30 31 6 -0.11 58 0 0 45 23 24 20 32 15.1 42 122 -26 46 3 21 44 43 30 60 17 34 30 56 54 -0.11 57 0 0 45 43 55 20 32 17.8 41 121 -26 46 23 40 45 4 14 60 33 6 31 21 54 -0.11 56 0 0 46 3 46 20 32 20.4 40 120 -26 46 43 19 45 24 17 60 48 4 31 46 7 -0.11 55 0 0 46 22 57 20 32 23.0 39 120 -25 47 2 18 45 43 40 61 2 30 32 9 34 -0.11 54 0 0 46 41 29 20 32 25.4 39 119 -25 47 20 38 46 2 23 61 16 24 32 32 15 -0.11 53 0 0 46 59 22 20 32 27.9 38 118 -25 47 38 19 46 20 28 61 29 48 32 54 11 -0.11 52 0 0 47 16 37 20 32 30.2 37 117 -25 47 55 23 46 37 54 61 42 40 33 15 21 -0.11 51 0 0 47 33 15 20 32 32.5 37 116 -24 48 11 50 46 54 42 61 55 3 33 35 48 -0.11 50 0 0 47 49 15 20 32 34.8 36 116 -24 48 27 40 47 10 53 62 6 57 33 55 31 -0.11 49 0 0 48 4 39 20 32 36.9 35 115 -24 48 42 54 47 26 27 62 18 23 34 14 31 -0.11 48 0 0 48 19 28 20 32 39.1 34 114 -24 48 57 33 47 41 25 62 29 21 34 32 48 -0.11 47 0 0 48 33 41 20 32 41.1 34 113 -23 49 11 37 47 55 48 62 39 51 34 50 23 -0.11 46 0 0 48 47 20 20 32 43.1 33 113 -23 49 25 6 48 9 36 62 49 54 35 7 16 -0.11 45 0 0 49 0 24 20 32 45.1 32 112 -23 49 38 2 48 22 49 62 59 31 35 23 28 -0.11 44 0 0 49 12 54 20 32 47.0 32 111 -22 49 50 24 48 35 28 63 8 43 35 38 59 -0.11 43 0 0 49 24 52 20 32 48.9 31 110 -22 50 2 13 48 47 33 63 17 29 35 53 50 -0.11 42 0 0 49 36 16 20 32 50.7 30 110 -22 50 13 29 48 59 5 63 25 50 36 8 1 -0.11 41 0 0 49 47 8 20 32 52.4 30 109 -22 50 24 14 49 10 5 63 33 46 36 21 32 -0.11 40 0 0 49 57 28 20 32 54.2 29 108 -21 50 34 27 49 20 32 63 41 19 36 34 25 -0.11 39 0 0 50 7 16 20 32 55.8 28 107 -21 50 44 8 49 30 27 63 48 28 36 46 38 -0.11 38 0 0 50 16 33 20 32 57.4 28 106 -21 50 53 19 49 39 50 63 55 13 36 58 13 -0.11 37 0 0 50 25 19 20 32 59.0 27 106 -20 51 1 59 49 48 43 64 1 35 37 9 10 -0.11 36 0 0 50 33 35 20 33 0.6 26 105 -20 51 10 9 49 57 4 64 7 35 37 19 30 -0.11 35 0 0 50 41 20 20 33 2.1 26 104 -20 51 17 48 50 4 55 64 13 12 37 29 12 -0.11 34 0 0 50 48 36 20 33 3.5 25 103 -20 51 24 59 50 12 15 64 18 28 37 38 17 -0.11 33 0 0 50 55 21 20 33 4.9 24 103 -19 51 31 40 50 19 6 64 23 21 37 46 45 -0.11 32 0 0 51 1 38 20 33 6.3 24 102 -19 51 37 51 50 25 26 64 27 53 37 54 36 -0.11 31 0 0 51 7 25 20 33 7.6 23 101 -19 51 43 34 50 31 17 64 32 3 38 1 51 -0.11 30 0 0 51 12 43 20 33 8.9 23 100 -18 51 48 49 50 36 39 64 35 52 38 8 30 -0.11 29 0 0 51 17 32 20 33 10.2 22 99 -18 51 53 34 50 41 32 64 39 20 38 14 33 -0.11 28 0 0 51 21 53 20 33 11.4 21 99 -18 51 57 52 50 45 56 64 42 28 38 20 1 -0.11 27 0 0 51 25 45 20 33 12.6 21 98 -17 52 1 41 50 49 51 64 45 14 38 24 52 -0.11 26 0 0 51 29 9 20 33 13.7 20 97 -17 52 5 3 50 53 17 64 47 40 38 29 9 -0.11 25 0 0 51 32 5 20 33 14.8 19 96 -17 52 7 56 50 56 15 64 49 46 38 32 50 -0.11 24 0 0 51 34 32 20 33 15.9 19 95 -17 52 10 22 50 58 45 64 51 31 38 35 55 -0.11 23 0 0 51 36 32 20 33 16.9 18 95 -16 52 12 21 51 0 46 64 52 57 38 38 26 -0.11 22 0 0 51 38 4 20 33 17.9 18 94 -16 52 13 51 51 2 19 64 54 2 38 40 21 -0.11 21 0 0 51 39 8 20 33 18.9 17 93 -16 52 14 54 51 3 24 64 54 47 38 41 42 -0.11 20 0 0 51 39 44 20 33 19.8 16 92 -15 52 15 30 51 4 0 64 55 11 38 42 27 -0.11 19 0 0 51 39 52 20 33 20.7 16 92 -15 52 15 38 51 4 9 64 55 16 38 42 38 -0.11 18 0 0 51 39 33 20 33 21.6 15 91 -15 52 15 19 51 3 49 64 55 1 38 42 13 -0.11 17 0 0 51 38 46 20 33 22.4 14 90 -14 52 14 32 51 3 1 64 54 26 38 41 13 -0.11 16 0 0 51 37 30 20 33 23.3 14 89 -14 52 13 18 51 1 45 64 53 30 38 39 39 -0.11 15 0 0 51 35 47 20 33 24.0 13 88 -14 52 11 36 51 0 1 64 52 14 38 37 29 -0.11 14 0 0 51 33 36 20 33 24.8 13 88 -13 52 9 26 50 57 48 64 50 39 38 34 43 -0.11 13 0 0 51 30 57 20 33 25.5 12 87 -13 52 6 49 50 55 7 64 48 42 38 31 23 -0.11 12 0 0 51 27 49 20 33 26.1 11 86 -13 52 3 43 50 51 57 64 46 26 38 27 26 -0.11 11 0 0 51 24 13 20 33 26.8 11 85 -12 52 0 10 50 48 18 64 43 49 38 22 54 -0.11 10 0 0 51 20 8 20 33 27.4 10 85 -12 51 56 8 50 44 11 64 40 51 38 17 47 -0.11 9 0 0 51 15 35 20 33 27.9 9 84 -12 51 51 38 50 39 34 64 37 32 38 12 3 -0.11 8 0 0 51 10 33 20 33 28.5 9 83 -11 51 46 40 50 34 29 64 33 52 38 5 42 -0.11 7 0 0 51 5 2 20 33 29.0 8 82 -11 51 41 12 50 28 53 64 29 52 37 58 45 -0.11 6 0 0 50 59 1 20 33 29.4 8 81 -11 51 35 16 50 22 48 64 25 29 37 51 12 -0.11 5 0 0 50 52 31 20 33 29.8 7 81 -10 51 28 50 50 16 13 64 20 45 37 43 1 -0.11 4 0 0 50 45 30 20 33 30.2 6 80 -10 51 21 54 50 9 8 64 15 40 37 34 12 -0.12 3 0 0 50 38 0 20 33 30.6 6 79 -10 51 14 29 50 1 32 64 10 12 37 24 46 -0.12 2 0 0 50 29 59 20 33 30.9 5 78 -9 51 6 34 49 53 26 64 4 21 37 14 42 -0.12 1 0 0 50 21 27 20 33 31.2 4 78 -9 50 58 8 49 44 48 63 58 8 37 4 0 -0.12 0 0 0 50 12 23 20 33 31.4 4 77 -8 50 49 11 49 35 38 63 51 32 36 52 38 -0.13 - 1 0 0 50 2 49 20 33 31.6 3 76 -8 50 39 43 49 25 57 63 44 33 .. .. .. -0.14 - 2 0 0 49 52 42 20 33 31.8 2 75 -8 50 29 43 49 15 43 63 37 9 .. .. .. -0.15 - 3 0 0 49 42 3 20 33 31.9 2 75 -7 50 19 11 49 4 56 63 29 22 .. .. .. -0.17 - 4 0 0 49 30 50 20 33 32.0 1 74 -7 50 8 7 48 53 36 63 21 10 .. .. .. -0.21 - 5 0 0 49 19 5 20 33 32.1 0 73 -7 49 56 30 48 41 43 63 12 33 .. .. .. -0.47 Uncertainty in time = +/- 67 secs Prediction of 2022 Jun 15.2 Data for the target star ------------------------ * name: UCAC4 507-076920 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 25 09.6412 DE: +11 16 59.955 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 25 09.6412 DE: +11 16 59.955 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 14.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (470309) 2007 JK43 asteroid class: Centaur approx. diameter [km]: 132 approx. diameter ["]: 0.007 distance from Earth [AU]: 25.07420 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#9 date of fit: 2021 Apr 14 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): 0.079", 0.031", 62.749° remarks: * orbital elements for (470309)2007 JK43 : Mean anomaly = 12.9719342428 deg Arg. of pericenter = 10.6182243942 deg Long. of node = 233.6813602954 deg Inclination = 44.9291831023 deg Eccentricity = 0.4902541836 Semimajor axis = 46.2707683980 AU Perihelion dist = 23.5863306133 AU Mag: H = 7.29, G = 0.15 Epoch of elements : MJD 60076.85354167 TDT (2023 May 12.8535) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#92021Apr14,6.21,2023,5,12,20.476086,0.072690,0.074596,-8.566236,8.378448,-0.004136,-0.002544,0.000001,-0.000001 99.0745,11.2936,-128.05,18.23,False UCAC4 507-076920,18.41934478,11.2833208,0.00,14.93,0.00,0.0,0,,18.43768912,11.2935535,6.63,0.00,0,0,0 470309,2007 JK43,21.56,131.8,25.0742,0,0,-0.203,2.94,,13.0 0,12.9693,2023,5,12,10.6182,233.6814,44.9292,0.49025,46.27077,23.58633,7.29,5.0,0.15 11.400,0.0787,0.0313,63,0.0754,Known errors,-1.00,-1,-1,-1 20230512_076920,59745.16 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Jun 15, 03:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org