IOTA/IOTA-ES occultation update for (20520) 1999 RC38 / TYC 549-00071-1 event on 2024 Jul 03, 03:49 UT Visible from Summary ------- On 2024 Jul 03 UT, the 12.4245999519712 km diameter asteroid (20520) 1999 RC38 will occult a 9.5 mag star in the constellation Pegasus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.09 mag to 17.59 mag (the magnitude of the asteroid) for at most 3.340 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: 64 * date and approx. time of event: 2024 Jul 03, 03:25 - 2024 Jul 03, 04:12 * geocentric midpoint of event [JD]: 2460494.65928683 * magnitude of target star: 9.50 * magnitude drop [mag]: 8.09 * estimated maximum duration [s]: 3.340 * Moon: 9 % sunlit, 94° distance * Sun: 128° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.95 * 1 sigma uncertainty interval [seconds]: +/- 5.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.004", 82°) * approx speed of asteroid's shadow [km/s]: 3.7667 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 549-00071-1 by 20520 1999 RC38 on 2024 Jul 3 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 -109 0 0 55 7 15 4 12 5.1 0 85 -2 55 11 28 55 3 2 55 19 31 54 55 1 .... -108 0 0 55 10 7 4 12 4.8 1 86 -3 55 14 20 55 5 54 55 22 22 54 57 53 -0.55 -107 0 0 55 12 44 4 12 4.3 2 87 -3 55 16 57 55 8 31 55 24 59 55 0 30 -0.61 -106 0 0 55 15 6 4 12 3.7 2 88 -3 55 19 19 55 10 53 55 27 21 55 2 53 -0.64 -105 0 0 55 17 14 4 12 2.8 3 89 -4 55 21 27 55 13 1 55 29 29 55 5 1 -0.66 -104 0 0 55 19 7 4 12 1.7 3 89 -4 55 23 20 55 14 55 55 31 22 55 6 54 -0.67 -103 0 0 55 20 46 4 12 0.4 4 90 -4 55 24 59 55 16 34 55 33 1 55 8 33 -0.68 -102 0 0 55 22 11 4 11 58.9 4 91 -5 55 26 24 55 17 58 55 34 26 55 9 58 -0.69 -101 0 0 55 23 21 4 11 57.2 5 92 -5 55 27 34 55 19 8 55 35 36 55 11 8 -0.69 -100 0 0 55 24 17 4 11 55.3 6 93 -5 55 28 30 55 20 4 55 36 32 55 12 4 -0.70 - 99 0 0 55 24 58 4 11 53.2 6 94 -6 55 29 11 55 20 46 55 37 14 55 12 45 -0.70 - 98 0 0 55 25 26 4 11 50.9 7 94 -6 55 29 39 55 21 13 55 37 41 55 13 12 -0.70 - 97 0 0 55 25 39 4 11 48.4 7 95 -6 55 29 52 55 21 26 55 37 55 55 13 25 -0.70 - 96 0 0 55 25 38 4 11 45.7 8 96 -7 55 29 51 55 21 25 55 37 54 55 13 24 -0.71 - 95 0 0 55 25 23 4 11 42.8 8 97 -7 55 29 36 55 21 10 55 37 39 55 13 9 -0.71 - 94 0 0 55 24 54 4 11 39.7 9 98 -7 55 29 7 55 20 41 55 37 10 55 12 40 -0.71 - 93 0 0 55 24 11 4 11 36.4 9 98 -7 55 28 24 55 19 58 55 36 27 55 11 56 -0.71 - 92 0 0 55 23 14 4 11 33.0 10 99 -8 55 27 27 55 19 0 55 35 30 55 10 59 -0.71 - 91 0 0 55 22 2 4 11 29.3 11 100 -8 55 26 16 55 17 49 55 34 20 55 9 47 -0.72 - 90 0 0 55 20 37 4 11 25.4 11 101 -8 55 24 51 55 16 24 55 32 55 55 8 21 -0.72 - 89 0 0 55 18 58 4 11 21.4 12 102 -9 55 23 12 55 14 44 55 31 16 55 6 42 -0.72 - 88 0 0 55 17 5 4 11 17.1 12 103 -9 55 21 19 55 12 51 55 29 24 55 4 48 -0.72 - 87 0 0 55 14 58 4 11 12.6 13 103 -9 55 19 12 55 10 44 55 27 17 55 2 41 -0.72 - 86 0 0 55 12 37 4 11 8.0 13 104 -9 55 16 52 55 8 23 55 24 57 55 0 20 -0.72 - 85 0 0 55 10 2 4 11 3.1 14 105 -10 55 14 17 55 5 48 55 22 23 54 57 44 -0.72 - 84 0 0 55 7 14 4 10 58.1 14 106 -10 55 11 29 55 2 59 55 19 35 54 54 55 -0.72 - 83 0 0 55 4 11 4 10 52.8 15 107 -10 55 8 26 54 59 57 55 16 33 54 51 52 -0.72 - 82 0 0 55 0 55 4 10 47.4 16 107 -10 55 5 10 54 56 40 55 13 17 54 48 35 -0.73 - 81 0 0 54 57 25 4 10 41.8 16 108 -11 55 1 41 54 53 10 55 9 48 54 45 4 -0.73 - 80 0 0 54 53 41 4 10 35.9 17 109 -11 54 57 57 54 49 26 55 6 5 54 41 20 -0.73 - 79 0 0 54 49 43 4 10 29.9 17 110 -11 54 53 59 54 45 28 55 2 8 54 37 21 -0.73 - 78 0 0 54 45 32 4 10 23.6 18 111 -11 54 49 48 54 41 16 54 57 57 54 33 9 -0.73 - 77 0 0 54 41 6 4 10 17.2 18 112 -11 54 45 23 54 36 50 54 53 32 54 28 43 -0.73 - 76 0 0 54 36 27 4 10 10.5 19 112 -12 54 40 44 54 32 11 54 48 54 54 24 3 -0.73 - 75 0 0 54 31 34 4 10 3.7 19 113 -12 54 35 51 54 27 18 54 44 2 54 19 9 -0.73 - 74 0 0 54 26 28 4 9 56.6 20 114 -12 54 30 45 54 22 11 54 38 56 54 14 2 -0.73 - 73 0 0 54 21 7 4 9 49.4 21 115 -12 54 25 25 54 16 50 54 33 36 54 8 40 -0.73 - 72 0 0 54 15 33 4 9 41.9 21 116 -12 54 19 51 54 11 15 54 28 3 54 3 5 -0.73 - 71 0 0 54 9 45 4 9 34.2 22 117 -13 54 14 3 54 5 27 54 22 16 53 57 16 -0.73 - 70 0 0 54 3 43 4 9 26.4 22 118 -13 54 8 2 53 59 25 54 16 15 53 51 13 -0.74 - 69 0 0 53 57 27 4 9 18.3 23 118 -13 54 1 46 53 53 9 54 10 0 53 44 57 -0.74 - 68 0 0 53 50 58 4 9 10.0 23 119 -13 53 55 17 53 46 39 54 3 32 53 38 27 -0.74 - 67 0 0 53 44 15 4 9 1.4 24 120 -13 53 48 35 53 39 56 53 56 50 53 31 43 -0.74 - 66 0 0 53 37 18 4 8 52.7 24 121 -13 53 41 38 53 32 59 53 49 54 53 24 45 -0.74 - 65 0 0 53 30 8 4 8 43.8 25 122 -14 53 34 28 53 25 48 53 42 44 53 17 33 -0.74 - 64 0 0 53 22 43 4 8 34.6 25 123 -14 53 27 4 53 18 23 53 35 21 53 10 8 -0.74 - 63 0 0 53 15 5 4 8 25.2 26 124 -14 53 19 26 53 10 45 53 27 44 53 2 29 -0.74 - 62 0 0 53 7 14 4 8 15.6 27 124 -14 53 11 35 53 2 53 53 19 53 52 54 36 -0.74 - 61 0 0 52 59 8 4 8 5.8 27 125 -14 53 3 30 52 54 47 53 11 49 52 46 30 -0.74 - 60 0 0 52 50 49 4 7 55.8 28 126 -14 52 55 11 52 46 27 53 3 31 52 38 10 -0.74 - 59 0 0 52 42 16 4 7 45.5 28 127 -15 52 46 39 52 37 54 52 54 59 52 29 36 -0.74 - 58 0 0 52 33 30 4 7 35.0 29 128 -15 52 37 53 52 29 7 52 46 14 52 20 48 -0.74 - 57 0 0 52 24 30 4 7 24.3 29 129 -15 52 28 53 52 20 7 52 37 15 52 11 47 -0.74 - 56 0 0 52 15 16 4 7 13.4 30 130 -15 52 19 40 52 10 53 52 28 2 52 2 33 -0.74 - 55 0 0 52 5 49 4 7 2.2 30 131 -15 52 10 13 52 1 25 52 18 36 51 53 4 -0.74 - 54 0 0 51 56 8 4 6 50.8 31 132 -15 52 0 32 51 51 44 52 8 56 51 43 22 -0.74 - 53 0 0 51 46 14 4 6 39.2 32 132 -15 51 50 38 51 41 50 51 59 3 51 33 27 -0.74 - 52 0 0 51 36 6 4 6 27.4 32 133 -15 51 40 31 51 31 41 51 48 56 51 23 18 -0.74 - 51 0 0 51 25 45 4 6 15.3 33 134 -15 51 30 10 51 21 20 51 38 36 51 12 56 -0.74 - 50 0 0 51 15 10 4 6 2.9 33 135 -15 51 19 36 51 10 45 51 28 2 51 2 20 -0.74 - 49 0 0 51 4 22 4 5 50.4 34 136 -15 51 8 48 50 59 56 51 17 15 50 51 31 -0.75 - 48 0 0 50 53 21 4 5 37.6 34 137 -16 50 57 47 50 48 55 51 6 15 50 40 29 -0.75 - 47 0 0 50 42 6 4 5 24.6 35 138 -16 50 46 33 50 37 40 50 55 1 50 29 13 -0.75 - 46 0 0 50 30 39 4 5 11.3 35 139 -16 50 35 6 50 26 12 50 43 35 50 17 45 -0.75 - 45 0 0 50 18 58 4 4 57.8 36 140 -16 50 23 25 50 14 31 50 31 55 50 6 3 -0.75 - 44 0 0 50 7 4 4 4 44.1 36 141 -16 50 11 31 50 2 36 50 20 2 49 54 8 -0.75 - 43 0 0 49 54 57 4 4 30.1 37 142 -16 49 59 25 49 50 29 50 7 56 49 42 0 -0.75 - 42 0 0 49 42 37 4 4 15.9 37 143 -16 49 47 5 49 38 9 49 55 37 49 29 39 -0.75 - 41 0 0 49 30 4 4 4 1.4 38 144 -16 49 34 33 49 25 36 49 43 5 49 17 5 -0.75 - 40 0 0 49 17 19 4 3 46.7 39 145 -16 49 21 48 49 12 50 49 30 21 49 4 19 -0.75 - 39 0 0 49 4 21 4 3 31.8 39 146 -16 49 8 50 48 59 52 49 17 24 48 51 20 -0.75 - 38 0 0 48 51 10 4 3 16.6 40 147 -16 48 55 40 48 46 41 49 4 14 48 38 9 -0.75 - 37 0 0 48 37 47 4 3 1.2 40 148 -16 48 42 17 48 33 17 48 50 51 48 24 45 -0.75 - 36 0 0 48 24 11 4 2 45.5 41 149 -16 48 28 42 48 19 41 48 37 17 48 11 8 -0.75 - 35 0 0 48 10 24 4 2 29.6 41 150 -16 48 14 54 48 5 54 48 23 30 47 57 20 -0.75 - 34 0 0 47 56 24 4 2 13.5 42 151 -16 48 0 55 47 51 53 48 9 31 47 43 19 -0.75 - 33 0 0 47 42 12 4 1 57.1 42 152 -16 47 46 43 47 37 41 47 55 20 47 29 7 -0.75 - 32 0 0 47 27 48 4 1 40.4 43 153 -16 47 32 20 47 23 18 47 40 57 47 14 42 -0.75 - 31 0 0 47 13 13 4 1 23.6 43 155 -16 47 17 45 47 8 42 47 26 22 47 0 6 -0.75 - 30 0 0 46 58 26 4 1 6.5 44 156 -15 47 2 58 46 53 55 47 11 36 46 45 19 -0.75 - 29 0 0 46 43 28 4 0 49.2 44 157 -15 46 48 0 46 38 56 46 56 39 46 30 20 -0.75 - 28 0 0 46 28 18 4 0 31.6 45 158 -15 46 32 50 46 23 46 46 41 30 46 15 9 -0.75 - 27 0 0 46 12 58 4 0 13.8 45 159 -15 46 17 30 46 8 26 46 26 10 45 59 48 -0.75 - 26 0 0 45 57 26 3 59 55.8 46 160 -15 46 1 59 45 52 54 46 10 39 45 44 16 -0.75 - 25 0 0 45 41 44 3 59 37.5 46 162 -15 45 46 17 45 37 11 45 54 57 45 28 33 -0.75 - 24 0 0 45 25 51 3 59 19.0 46 163 -15 45 30 24 45 21 19 45 39 5 45 12 40 -0.75 - 23 0 0 45 9 48 3 59 0.3 47 164 -15 45 14 21 45 5 15 45 23 2 44 56 36 -0.75 - 22 0 0 44 53 35 3 58 41.4 47 165 -15 44 58 8 44 49 2 45 6 49 44 40 23 -0.75 - 21 0 0 44 37 12 3 58 22.2 48 167 -14 44 41 45 44 32 38 44 50 26 44 23 59 -0.75 - 20 0 0 44 20 39 3 58 2.8 48 168 -14 44 25 12 44 16 5 44 33 54 44 7 26 -0.75 - 19 0 0 44 3 56 3 57 43.2 49 169 -14 44 8 30 43 59 23 44 17 12 43 50 43 -0.75 - 18 0 0 43 47 4 3 57 23.4 49 170 -14 43 51 38 43 42 31 44 0 20 43 33 51 -0.75 - 17 0 0 43 30 3 3 57 3.4 49 172 -14 43 34 37 43 25 30 43 43 19 43 16 50 -0.74 - 16 0 0 43 12 54 3 56 43.2 50 173 -14 43 17 28 43 8 20 43 26 10 42 59 40 -0.74 - 15 0 0 42 55 35 3 56 22.8 50 175 -13 43 0 9 42 51 2 43 8 52 42 42 21 -0.74 - 14 0 0 42 38 9 3 56 2.2 50 176 -13 42 42 43 42 33 35 42 51 26 42 24 55 -0.74 - 13 0 0 42 20 34 3 55 41.4 51 177 -13 42 25 8 42 16 0 42 33 51 42 7 20 -0.74 - 12 0 0 42 2 52 3 55 20.4 51 179 -13 42 7 26 41 58 18 42 16 9 41 49 37 -0.74 - 11 0 0 41 45 2 3 54 59.2 51 180 -12 41 49 36 41 40 28 41 58 18 41 31 47 -0.74 - 10 0 0 41 27 4 3 54 37.9 52 182 -12 41 31 38 41 22 30 41 40 21 41 13 50 -0.74 - 9 0 0 41 9 0 3 54 16.3 52 183 -12 41 13 34 41 4 26 41 22 17 40 55 45 -0.74 - 8 0 0 40 50 49 3 53 54.6 52 185 -12 40 55 23 40 46 15 41 4 5 40 37 34 -0.74 - 7 0 0 40 32 31 3 53 32.8 52 186 -11 40 37 5 40 27 57 40 45 48 40 19 17 -0.74 - 6 0 0 40 14 7 3 53 10.8 53 188 -11 40 18 41 40 9 34 40 27 24 40 0 53 -0.74 - 5 0 0 39 55 38 3 52 48.6 53 189 -11 40 0 12 39 51 4 40 8 54 39 42 24 -0.74 - 4 0 0 39 37 3 3 52 26.3 53 191 -10 39 41 37 39 32 29 39 50 19 39 23 49 -0.74 - 3 0 0 39 18 23 3 52 3.8 53 192 -10 39 22 57 39 13 49 39 31 39 39 5 9 -0.74 - 2 0 0 38 59 38 3 51 41.2 53 194 -10 39 4 11 38 55 4 39 12 53 38 46 24 -0.74 - 1 0 0 38 40 48 3 51 18.5 53 196 -9 38 45 22 38 36 15 38 54 3 38 27 35 -0.74 0 0 0 38 21 54 3 50 55.7 54 197 -9 38 26 28 38 17 21 38 35 9 38 8 41 -0.74 1 0 0 38 2 56 3 50 32.7 54 199 -9 38 7 30 37 58 23 38 16 11 37 49 44 -0.74 2 0 0 37 43 55 3 50 9.7 54 200 -8 37 48 28 37 39 22 37 57 9 37 30 43 -0.73 3 0 0 37 24 50 3 49 46.5 54 202 -8 37 29 23 37 20 17 37 38 4 37 11 38 -0.73 4 0 0 37 5 42 3 49 23.3 54 204 -8 37 10 15 37 1 10 37 18 56 36 52 31 -0.73 5 0 0 36 46 32 3 49 0.0 54 205 -7 36 51 5 36 41 59 36 59 45 36 33 21 -0.73 6 0 0 36 27 19 3 48 36.5 54 207 -7 36 31 52 36 22 47 36 40 32 36 14 9 -0.73 7 0 0 36 8 5 3 48 13.1 54 209 -6 36 12 37 36 3 33 36 21 16 35 54 55 -0.73 8 0 0 35 48 48 3 47 49.5 54 210 -6 35 53 21 35 44 17 36 2 0 35 35 40 -0.73 9 0 0 35 29 31 3 47 26.0 53 212 -5 35 34 3 35 25 0 35 42 42 35 16 23 -0.73 10 0 0 35 10 13 3 47 2.3 53 213 -5 35 14 45 35 5 42 35 23 23 34 57 5 -0.73 11 0 0 34 50 54 3 46 38.7 53 215 -5 34 55 26 34 46 23 35 4 4 34 37 47 -0.73 12 0 0 34 31 35 3 46 15.0 53 217 -4 34 36 7 34 27 4 34 44 44 34 18 29 -0.73 13 0 0 34 12 17 3 45 51.3 53 218 -4 34 16 48 34 7 46 34 25 25 33 59 11 -0.73 14 0 0 33 52 59 3 45 27.5 53 220 -3 33 57 29 33 48 28 34 6 6 33 39 54 -0.73 15 0 0 33 33 41 3 45 3.8 52 221 -3 33 38 12 33 29 11 33 46 48 33 20 37 -0.73 16 0 0 33 14 25 3 44 40.1 52 223 -2 33 18 56 33 9 55 33 27 31 33 1 22 -0.73 17 0 0 32 55 11 3 44 16.4 52 224 -2 32 59 41 32 50 41 33 8 16 32 42 8 -0.72 18 0 0 32 35 59 3 43 52.7 52 226 -1 32 40 28 32 31 29 32 49 3 32 22 57 -0.72 19 0 0 32 16 49 3 43 29.1 51 227 -1 32 21 18 32 12 20 32 29 52 32 3 48 -0.72 20 0 0 31 57 41 3 43 5.5 51 228 0 32 2 11 31 53 13 32 10 44 31 44 41 -0.72 21 0 0 31 38 37 3 42 42.0 50 230 0 31 43 6 31 34 9 31 51 39 31 25 38 -0.72 22 0 0 31 19 37 3 42 18.5 50 231 1 31 24 5 31 15 8 31 32 37 31 6 38 -0.72 23 0 0 31 0 40 3 41 55.2 50 232 2 31 5 8 30 56 12 31 13 40 30 47 42 -0.72 24 0 0 30 41 47 3 41 31.8 49 234 2 30 46 15 30 37 19 30 54 46 30 28 50 -0.72 25 0 0 30 22 59 3 41 8.6 49 235 3 30 27 26 30 18 31 30 35 57 30 10 3 -0.72 26 0 0 30 4 16 3 40 45.5 48 236 3 30 8 43 29 59 48 30 17 13 29 51 21 -0.72 27 0 0 29 45 38 3 40 22.5 48 237 4 29 50 5 29 41 11 29 58 34 29 32 44 -0.72 28 0 0 29 27 5 3 39 59.6 47 239 4 29 31 32 29 22 39 29 40 0 29 14 12 -0.72 29 0 0 29 8 39 3 39 36.9 47 240 5 29 13 5 29 4 13 29 21 33 28 55 47 -0.72 30 0 0 28 50 19 3 39 14.3 46 241 6 28 54 45 28 45 53 29 3 12 28 37 28 -0.72 31 0 0 28 32 5 3 38 51.9 46 242 6 28 36 31 28 27 40 28 44 58 28 19 15 -0.72 32 0 0 28 13 59 3 38 29.6 45 243 7 28 18 24 28 9 34 28 26 51 28 1 10 -0.72 33 0 0 27 56 0 3 38 7.4 45 244 8 28 0 25 27 51 35 28 8 51 27 43 12 -0.72 34 0 0 27 38 9 3 37 45.5 44 245 8 27 42 34 27 33 45 27 50 59 27 25 22 -0.72 35 0 0 27 20 26 3 37 23.8 43 246 9 27 24 51 27 16 2 27 33 15 27 7 40 -0.72 36 0 0 27 2 52 3 37 2.2 43 247 9 27 7 16 26 58 28 27 15 39 26 50 6 -0.72 37 0 0 26 45 26 3 36 40.9 42 248 10 26 49 50 26 41 3 26 58 13 26 32 42 -0.71 38 0 0 26 28 10 3 36 19.8 41 249 11 26 32 33 26 23 47 26 40 55 26 15 26 -0.71 39 0 0 26 11 3 3 35 58.9 41 250 11 26 15 26 26 6 40 26 23 48 25 58 20 -0.71 40 0 0 25 54 6 3 35 38.2 40 251 12 25 58 28 25 49 43 26 6 50 25 41 24 -0.71 41 0 0 25 37 19 3 35 17.8 39 252 13 25 41 41 25 32 57 25 50 2 25 24 38 -0.71 42 0 0 25 20 43 3 34 57.7 39 252 13 25 25 5 25 16 21 25 33 25 25 8 3 -0.71 43 0 0 25 4 18 3 34 37.8 38 253 14 25 8 39 24 59 56 25 16 59 24 51 39 -0.71 44 0 0 24 48 4 3 34 18.2 37 254 15 24 52 25 24 43 43 25 0 44 24 35 26 -0.71 45 0 0 24 32 1 3 33 58.9 37 255 16 24 36 22 24 27 40 24 44 40 24 19 24 -0.71 46 0 0 24 16 11 3 33 39.8 36 255 16 24 20 32 24 11 50 24 28 49 24 3 35 -0.71 47 0 0 24 0 33 3 33 21.1 35 256 17 24 4 53 23 56 12 24 13 10 23 47 58 -0.71 48 0 0 23 45 7 3 33 2.7 34 257 18 23 49 27 23 40 47 23 57 43 23 32 33 -0.71 49 0 0 23 29 55 3 32 44.6 34 257 18 23 34 14 23 25 35 23 42 30 23 17 21 -0.71 50 0 0 23 14 55 3 32 26.9 33 258 19 23 19 15 23 10 36 23 27 30 23 2 23 -0.71 51 0 0 23 0 9 3 32 9.4 32 259 20 23 4 29 22 55 50 23 12 43 22 47 38 -0.71 52 0 0 22 45 37 3 31 52.4 31 259 21 22 49 56 22 41 19 22 58 10 22 33 7 -0.72 53 0 0 22 31 19 3 31 35.7 30 260 21 22 35 38 22 27 1 22 43 51 22 18 50 -0.72 54 0 0 22 17 16 3 31 19.3 30 260 22 22 21 35 22 12 58 22 29 47 22 4 47 -0.72 55 0 0 22 3 28 3 31 3.3 29 261 23 22 7 46 21 59 10 22 15 58 21 50 59 -0.72 56 0 0 21 49 55 3 30 47.7 28 262 24 21 54 12 21 45 37 22 2 24 21 37 27 -0.72 57 0 0 21 36 37 3 30 32.5 27 262 25 21 40 54 21 32 19 21 49 5 21 24 10 -0.72 58 0 0 21 23 35 3 30 17.7 26 263 25 21 27 52 21 19 18 21 36 3 21 11 9 -0.72 59 0 0 21 10 49 3 30 3.3 25 263 26 21 15 6 21 6 32 21 23 16 20 58 24 -0.72 60 0 0 20 58 19 3 29 49.3 25 264 27 21 2 36 20 54 3 21 10 46 20 45 55 -0.72 61 0 0 20 46 7 3 29 35.8 24 264 28 20 50 23 20 41 50 20 58 32 20 33 43 -0.72 62 0 0 20 34 11 3 29 22.6 23 264 28 20 38 27 20 29 55 20 46 36 20 21 48 -0.72 63 0 0 20 22 32 3 29 10.0 22 265 29 20 26 48 20 18 17 20 34 57 20 10 10 -0.72 64 0 0 20 11 12 3 28 57.7 21 265 30 20 15 27 20 6 56 20 23 35 19 58 50 -0.72 65 0 0 20 0 9 3 28 45.9 20 266 31 20 4 24 19 55 53 20 12 32 19 47 47 -0.73 66 0 0 19 49 24 3 28 34.6 19 266 32 19 53 39 19 45 9 20 1 46 19 37 3 -0.73 67 0 0 19 38 57 3 28 23.7 18 267 33 19 43 13 19 34 42 19 51 19 19 26 37 -0.73 68 0 0 19 28 50 3 28 13.3 18 267 33 19 33 5 19 24 35 19 41 11 19 16 30 -0.73 69 0 0 19 19 1 3 28 3.4 17 267 34 19 23 16 19 14 47 19 31 22 19 6 42 -0.73 70 0 0 19 9 32 3 27 53.9 16 268 35 19 13 47 19 5 18 19 21 52 18 57 14 -0.73 71 0 0 19 0 22 3 27 45.0 15 268 36 19 4 37 18 56 8 19 12 42 18 48 4 -0.74 72 0 0 18 51 33 3 27 36.5 14 268 37 18 55 47 18 47 18 19 3 52 18 39 15 -0.74 73 0 0 18 43 3 3 27 28.6 13 269 38 18 47 17 18 38 49 18 55 22 18 30 46 -0.74 74 0 0 18 34 54 3 27 21.2 12 269 38 18 39 8 18 30 40 18 47 12 18 22 37 -0.74 75 0 0 18 27 5 3 27 14.3 11 269 39 18 31 19 18 22 51 18 39 24 18 14 49 -0.75 76 0 0 18 19 38 3 27 7.9 10 270 40 18 23 51 18 15 24 18 31 56 18 7 21 -0.75 77 0 0 18 12 31 3 27 2.1 9 270 41 18 16 45 18 8 18 18 24 49 18 0 15 -0.76 78 0 0 18 5 46 3 26 56.8 8 270 42 18 10 0 18 1 33 18 18 4 17 53 31 -0.76 79 0 0 17 59 23 3 26 52.0 7 271 43 18 3 37 17 55 10 18 11 40 17 47 8 -0.77 80 0 0 17 53 22 3 26 47.8 7 271 44 17 57 35 17 49 8 18 5 39 17 41 7 -0.77 81 0 0 17 47 43 3 26 44.1 6 271 44 17 51 56 17 43 30 18 0 0 17 35 28 -0.79 82 0 0 17 42 26 3 26 41.0 5 272 45 17 46 40 17 38 13 17 54 43 17 30 11 -0.80 83 0 0 17 37 32 3 26 38.5 4 272 46 17 41 46 17 33 19 17 49 49 17 25 18 -0.82 84 0 0 17 33 2 3 26 36.5 3 272 47 17 37 15 17 28 49 17 45 18 17 20 47 -0.86 85 0 0 17 28 54 3 26 35.1 2 273 48 17 33 8 17 24 41 17 41 11 17 16 39 -0.93 86 0 0 17 25 10 3 26 34.2 1 273 49 17 29 23 17 20 57 17 37 27 17 12 55 -1.15 Uncertainty in time = +/- 6 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 549-00071-1 * constellation : Pegasus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 55 50.3732 DE: +02 53 35.938 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 55 50.3732 DE: +02 53 35.938 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 9.5 * B mag [mag]: 10.2 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (20520) 1999 RC38 asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.19780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#51 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): 0.015", 0.004", 81.987° remarks: * orbital elements for (20520)1999 RC38 : Mean anomaly = 200.0520009912 deg Arg. of pericenter = 289.7206153294 deg Long. of node = 189.9547900678 deg Inclination = 13.3805964545 deg Eccentricity = 0.1225389092 Semimajor axis = 2.6264726515 AU Perihelion dist = 2.3046275577 AU Mag: H = 12.69, G = 0.15 Epoch of elements : MJD 60494.15928742 TDT (2024 Jul 03.1593) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#512023Apr25,3.34,2024,7,3,3.822884,0.190214,0.558114,-2.012278,0.686024,-0.003764,-0.002373,0.000001,0.000000 -9.7382,3.0092,123.74,22.92,False TYC 549-00071-1,21.93065921,2.8933159,10.15,9.50,9.15,0.1,0,,21.95153953,3.0091512,8.09,7.99,0,0,0 20520,1999 RC38,17.59,12.584,2.1978,0,0,-0.537,2.75,,1.0,0 0,200.0151,2024,7,3,289.7206,189.9548,13.3806,0.12254,2.62647,2.30463,12.68,5.0,0.15 1.952,0.0150,0.0037,82,0.0075,Known errors,1.20,0,-1,-1 20240703_0071-1,60140.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:21 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org