IOTA/IOTA-ES occultation update for (428) Monachia / TYC 850-00859-1 event on 2024 Oct 21, 21:58 UT Visible from Summary ------- On 2024 Oct 21 UT, the 20.958 km diameter asteroid (428) Monachia will occult a 11.2 mag star in the constellation Leo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.07 mag to 17.23 mag (the magnitude of the asteroid) for at most 0.560 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 21, 21:55 - 2024 Oct 21, 22:01 * geocentric midpoint of event [JD]: 2460605.41566971 * magnitude of target star: 11.16 * magnitude drop [mag]: 6.07 * estimated maximum duration [s]: 0.560 * Moon: 74 % sunlit, 72° distance * Sun: 46° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 21 * 1 sigma uncertainty interval [path widths]: +/- 0.30 * 1 sigma uncertainty interval [seconds]: +/- 0.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.003", 120°) * approx speed of asteroid's shadow [km/s]: 37.1700 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 850-00859-1 by 428 Monachia on 2024 Oct 21 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 71 0 0 29 54 23 21 55 43.8 1 79 -45 29 48 33 30 0 14 29 45 5 30 3 42 .... 72 0 0 30 4 54 21 55 43.8 2 79 -44 29 59 4 30 10 44 29 55 37 30 14 12 -0.14 73 0 0 30 15 2 21 55 43.9 2 80 -43 30 9 13 30 20 52 30 5 46 30 24 19 -0.13 74 0 0 30 24 47 21 55 44.0 3 80 -43 30 18 58 30 30 36 30 15 31 30 34 3 -0.13 75 0 0 30 34 9 21 55 44.2 4 81 -42 30 28 21 30 39 58 30 24 54 30 43 25 -0.13 76 0 0 30 43 9 21 55 44.4 5 81 -41 30 37 21 30 48 57 30 33 54 30 52 24 -0.13 77 0 0 30 51 45 21 55 44.7 6 82 -40 30 45 57 30 57 33 30 42 31 31 0 59 -0.13 78 0 0 30 59 59 21 55 45.0 7 82 -39 30 54 11 31 5 46 30 50 45 31 9 12 -0.13 79 0 0 31 7 49 21 55 45.3 8 83 -38 31 2 2 31 13 36 30 58 36 31 17 2 -0.13 80 0 0 31 15 17 21 55 45.7 9 83 -37 31 9 30 31 21 4 31 6 5 31 24 29 -0.13 81 0 0 31 22 22 21 55 46.1 9 84 -36 31 16 35 31 28 8 31 13 10 31 31 33 -0.13 82 0 0 31 29 4 21 55 46.5 10 84 -36 31 23 18 31 34 50 31 19 53 31 38 15 -0.13 83 0 0 31 35 23 21 55 47.0 11 85 -35 31 29 37 31 41 8 31 26 12 31 44 33 -0.13 84 0 0 31 41 19 21 55 47.5 12 85 -34 31 35 34 31 47 4 31 32 9 31 50 29 -0.13 85 0 0 31 46 52 21 55 48.1 13 86 -33 31 41 7 31 52 37 31 37 43 31 56 2 -0.13 86 0 0 31 52 3 21 55 48.7 14 86 -32 31 46 18 31 57 48 31 42 54 32 1 12 -0.13 87 0 0 31 56 50 21 55 49.3 15 87 -31 31 51 6 32 2 35 31 47 42 32 5 59 -0.13 88 0 0 32 1 15 21 55 50.0 15 87 -30 31 55 31 32 7 0 31 52 7 32 10 24 -0.13 89 0 0 32 5 17 21 55 50.7 16 88 -30 31 59 33 32 11 1 31 56 9 32 14 26 -0.13 90 0 0 32 8 56 21 55 51.4 17 88 -29 32 3 13 32 14 40 31 59 49 32 18 4 -0.13 91 0 0 32 12 13 21 55 52.2 18 89 -28 32 6 29 32 17 57 32 3 5 32 21 20 -0.13 92 0 0 32 15 6 21 55 53.0 19 89 -27 32 9 23 32 20 50 32 5 59 32 24 14 -0.13 93 0 0 32 17 37 21 55 53.9 20 90 -26 32 11 53 32 23 20 32 8 30 32 26 44 -0.13 94 0 0 32 19 45 21 55 54.7 21 91 -25 32 14 1 32 25 28 32 10 38 32 28 52 -0.13 95 0 0 32 21 30 21 55 55.7 21 91 -25 32 15 46 32 27 13 32 12 23 32 30 37 -0.13 96 0 0 32 22 52 21 55 56.6 22 92 -24 32 17 9 32 28 35 32 13 45 32 31 59 -0.13 97 0 0 32 23 51 21 55 57.6 23 92 -23 32 18 8 32 29 34 32 14 45 32 32 58 -0.13 98 0 0 32 24 28 21 55 58.6 24 93 -22 32 18 45 32 30 11 32 15 21 32 33 34 -0.13 99 0 0 32 24 41 21 55 59.7 25 93 -21 32 18 58 32 30 25 32 15 35 32 33 48 -0.13 100 0 0 32 24 32 21 56 0.8 26 94 -20 32 18 49 32 30 15 32 15 26 32 33 39 -0.13 101 0 0 32 24 0 21 56 1.9 26 94 -19 32 18 17 32 29 43 32 14 54 32 33 7 -0.13 102 0 0 32 23 5 21 56 3.0 27 95 -19 32 17 22 32 28 48 32 13 59 32 32 12 -0.13 103 0 0 32 21 47 21 56 4.2 28 96 -18 32 16 4 32 27 31 32 12 41 32 30 54 -0.13 104 0 0 32 20 7 21 56 5.5 29 96 -17 32 14 23 32 25 50 32 11 0 32 29 14 -0.13 105 0 0 32 18 3 21 56 6.7 30 97 -16 32 12 20 32 23 46 32 8 56 32 27 10 -0.13 106 0 0 32 15 36 21 56 8.0 31 97 -15 32 9 53 32 21 20 32 6 29 32 24 44 -0.13 107 0 0 32 12 47 21 56 9.4 32 98 -14 32 7 3 32 18 30 32 3 39 32 21 54 -0.13 108 0 0 32 9 34 21 56 10.7 32 98 -13 32 3 50 32 15 18 32 0 26 32 18 42 -0.13 109 0 0 32 5 59 21 56 12.1 33 99 -13 32 0 15 32 11 43 31 56 51 32 15 7 -0.13 110 0 0 32 2 0 21 56 13.6 34 100 -12 31 56 16 32 7 44 31 52 52 32 11 8 -0.13 111 0 0 31 57 38 21 56 15.0 35 100 -11 31 51 54 32 3 23 31 48 30 32 6 47 -0.13 112 0 0 31 52 54 21 56 16.5 36 101 -10 31 47 9 31 58 38 31 43 45 32 2 3 -0.13 113 0 0 31 47 46 21 56 18.1 37 101 -9 31 42 1 31 53 31 31 38 36 31 56 55 -0.13 114 0 0 31 42 15 21 56 19.6 38 102 -8 31 36 30 31 48 0 31 33 5 31 51 25 -0.13 115 0 0 31 36 21 21 56 21.2 38 103 -7 31 30 35 31 42 6 31 27 10 31 45 31 -0.13 116 0 0 31 30 3 21 56 22.9 39 103 -7 31 24 18 31 35 49 31 20 52 31 39 14 -0.13 117 0 0 31 23 23 21 56 24.5 40 104 -6 31 17 37 31 29 9 31 14 11 31 32 34 -0.13 118 0 0 31 16 19 21 56 26.2 41 104 -5 31 10 33 31 22 6 31 7 7 31 25 31 -0.13 119 0 0 31 8 52 21 56 28.0 42 105 -4 31 3 5 31 14 39 30 59 39 31 18 5 -0.13 120 0 0 31 1 2 21 56 29.8 43 106 -3 30 55 14 31 6 49 30 51 49 31 10 15 -0.13 121 0 0 30 52 48 21 56 31.6 44 106 -2 30 47 0 30 58 36 30 43 34 31 2 2 -0.13 122 0 0 30 44 11 21 56 33.4 44 107 -1 30 38 23 30 49 59 30 34 57 30 53 25 -0.13 123 0 0 30 35 11 21 56 35.3 45 107 -1 30 29 22 30 40 59 30 25 55 30 44 26 -0.13 124 0 0 30 25 47 21 56 37.2 46 108 0 30 19 58 30 31 36 30 16 31 30 35 3 -0.13 125 0 0 30 16 0 21 56 39.1 47 109 1 30 10 10 30 21 49 30 6 43 30 25 16 -0.13 126 0 0 30 5 49 21 56 41.1 48 109 2 29 59 59 30 11 39 29 56 32 30 15 6 -0.13 127 0 0 29 55 15 21 56 43.1 49 110 3 29 49 25 30 1 5 29 45 57 30 4 33 -0.13 128 0 0 29 44 17 21 56 45.2 50 111 4 29 38 26 29 50 8 29 34 58 29 53 36 -0.13 129 0 0 29 32 56 21 56 47.2 51 111 5 29 27 5 29 38 48 29 23 37 29 42 16 -0.13 130 0 0 29 21 12 21 56 49.4 51 112 6 29 15 20 29 27 4 29 11 51 29 30 33 -0.13 131 0 0 29 9 4 21 56 51.5 52 113 7 29 3 12 29 14 57 28 59 43 29 18 26 -0.13 132 0 0 28 56 33 21 56 53.7 53 113 8 28 50 40 29 2 26 28 47 10 29 5 55 -0.13 133 0 0 28 43 38 21 56 55.9 54 114 8 28 37 44 28 49 31 28 34 15 28 53 1 -0.13 134 0 0 28 30 20 21 56 58.2 55 115 9 28 24 25 28 36 14 28 20 55 28 39 44 -0.13 135 0 0 28 16 38 21 57 0.4 56 115 10 28 10 43 28 22 33 28 7 13 28 26 3 -0.13 136 0 0 28 2 33 21 57 2.8 57 116 11 27 56 37 28 8 28 27 53 7 28 11 59 -0.13 137 0 0 27 48 4 21 57 5.1 58 117 12 27 42 8 27 54 0 27 38 37 27 57 32 -0.13 138 0 0 27 33 13 21 57 7.5 59 118 13 27 27 16 27 39 9 27 23 45 27 42 41 -0.13 139 0 0 27 17 58 21 57 9.9 60 119 14 27 12 0 27 23 55 27 8 29 27 27 27 -0.13 140 0 0 27 2 19 21 57 12.4 60 119 15 26 56 22 27 8 17 26 52 49 27 11 50 -0.13 141 0 0 26 46 18 21 57 14.8 61 120 16 26 40 20 26 52 17 26 36 47 26 55 49 -0.13 142 0 0 26 29 54 21 57 17.4 62 121 17 26 23 55 26 35 53 26 20 22 26 39 26 -0.13 143 0 0 26 13 6 21 57 19.9 63 122 18 26 7 7 26 19 6 26 3 33 26 22 40 -0.13 144 0 0 25 55 56 21 57 22.5 64 123 19 25 49 56 26 1 57 25 46 22 26 5 31 -0.13 145 0 0 25 38 23 21 57 25.1 65 124 20 25 32 22 25 44 25 25 28 48 25 47 59 -0.13 146 0 0 25 20 28 21 57 27.7 66 125 21 25 14 26 25 26 30 25 10 51 25 30 4 -0.13 147 0 0 25 2 10 21 57 30.4 67 126 22 24 56 7 25 8 12 24 52 32 25 11 47 -0.13 148 0 0 24 43 29 21 57 33.1 68 127 23 24 37 26 24 49 32 24 33 51 24 53 8 -0.13 149 0 0 24 24 26 21 57 35.8 69 128 23 24 18 23 24 30 30 24 14 47 24 34 6 -0.13 150 0 0 24 5 2 21 57 38.6 70 130 24 23 58 57 24 11 6 23 55 21 24 14 43 -0.13 151 0 0 23 45 15 21 57 41.4 71 131 25 23 39 10 23 51 21 23 35 34 23 54 57 -0.13 152 0 0 23 25 7 21 57 44.2 71 133 26 23 19 1 23 31 13 23 15 24 23 34 50 -0.13 153 0 0 23 4 38 21 57 47.0 72 134 27 22 58 31 23 10 44 22 54 54 23 14 22 -0.13 154 0 0 22 43 47 21 57 49.9 73 136 28 22 37 40 22 49 54 22 34 2 22 53 32 -0.13 155 0 0 22 22 35 21 57 52.8 74 138 29 22 16 27 22 28 43 22 12 49 22 32 21 -0.13 156 0 0 22 1 3 21 57 55.7 75 140 30 21 54 54 22 7 11 21 51 16 22 10 50 -0.13 157 0 0 21 39 10 21 57 58.7 76 142 31 21 33 1 21 45 19 21 29 22 21 48 58 -0.13 158 0 0 21 16 57 21 58 1.6 77 145 32 21 10 48 21 23 7 21 7 8 21 26 46 -0.13 159 0 0 20 54 25 21 58 4.6 78 148 33 20 48 14 21 0 35 20 44 35 21 4 15 -0.13 160 0 0 20 31 33 21 58 7.6 78 151 34 20 25 22 20 37 44 20 21 42 20 41 24 -0.13 161 0 0 20 8 22 21 58 10.7 79 155 35 20 2 10 20 14 33 19 58 30 20 18 14 -0.13 162 0 0 19 44 52 21 58 13.7 80 159 36 19 38 40 19 51 4 19 34 59 19 54 45 -0.13 163 0 0 19 21 4 21 58 16.8 81 164 37 19 14 51 19 27 17 19 11 10 19 30 58 -0.13 164 0 0 18 56 58 21 58 19.9 81 170 38 18 50 45 19 3 12 18 47 3 19 6 53 -0.13 165 0 0 18 32 35 21 58 23.0 82 176 39 18 26 21 18 38 49 18 22 39 18 42 31 -0.13 166 0 0 18 7 55 21 58 26.1 82 184 41 18 1 40 18 14 9 17 57 58 18 17 51 -0.13 167 0 0 17 42 58 21 58 29.3 82 192 42 17 36 43 17 49 13 17 33 0 17 52 55 -0.13 168 0 0 17 17 45 21 58 32.4 83 200 43 17 11 29 17 24 0 17 7 47 17 27 43 -0.13 169 0 0 16 52 16 21 58 35.6 83 208 44 16 46 1 16 58 33 16 42 18 17 2 16 -0.13 170 0 0 16 26 33 21 58 38.8 82 217 45 16 20 17 16 32 50 16 16 34 16 36 33 -0.13 171 0 0 16 0 35 21 58 42.0 82 225 46 15 54 18 16 6 52 15 50 35 16 10 36 -0.13 172 0 0 15 34 24 21 58 45.2 82 232 47 15 28 6 15 40 41 15 24 23 15 44 25 -0.13 173 0 0 15 7 59 21 58 48.4 81 238 48 15 1 41 15 14 16 14 57 57 15 18 1 -0.13 174 0 0 14 41 21 21 58 51.6 80 244 49 14 35 3 14 47 39 14 31 19 14 51 23 -0.13 175 0 0 14 14 31 21 58 54.8 80 249 50 14 8 13 14 20 50 14 4 28 14 24 34 -0.13 176 0 0 13 47 30 21 58 58.0 79 253 51 13 41 11 13 53 49 13 37 27 13 57 34 -0.13 177 0 0 13 20 18 21 59 1.2 78 257 52 13 13 59 13 26 37 13 10 14 13 30 22 -0.13 178 0 0 12 52 56 21 59 4.4 77 260 53 12 46 37 12 59 15 12 42 52 13 3 1 -0.13 179 0 0 12 25 24 21 59 7.6 76 263 54 12 19 5 12 31 44 12 15 20 12 35 29 -0.13 180 0 0 11 57 44 21 59 10.8 75 265 55 11 51 24 12 4 4 11 47 39 12 7 50 -0.13 -179 0 0 11 29 56 21 59 14.0 75 267 56 11 23 36 11 36 16 11 19 50 11 40 2 -0.13 -178 0 0 11 2 0 21 59 17.2 74 269 57 10 55 40 11 8 21 10 51 54 11 12 6 -0.13 -177 0 0 10 33 58 21 59 20.3 73 271 58 10 27 37 10 40 18 10 23 52 10 44 4 -0.13 -176 0 0 10 5 50 21 59 23.5 72 272 59 9 59 29 10 12 11 9 55 44 10 15 56 -0.13 -175 0 0 9 37 37 21 59 26.6 71 274 60 9 31 16 9 43 57 9 27 30 9 47 43 -0.13 -174 0 0 9 9 19 21 59 29.8 69 275 61 9 2 58 9 15 40 8 59 13 9 19 26 -0.13 -173 0 0 8 40 58 21 59 32.9 68 276 62 8 34 37 8 47 19 8 30 51 8 51 5 -0.13 -172 0 0 8 12 34 21 59 36.0 67 277 64 8 6 13 8 18 55 8 2 27 8 22 41 -0.13 -171 0 0 7 44 8 21 59 39.1 66 278 65 7 37 47 7 50 29 7 34 2 7 54 15 -0.13 -170 0 0 7 15 41 21 59 42.1 65 279 66 7 9 20 7 22 2 7 5 34 7 25 48 -0.13 -169 0 0 6 47 13 21 59 45.2 64 280 67 6 40 53 6 53 34 6 37 7 6 57 20 -0.13 -168 0 0 6 18 46 21 59 48.2 63 280 68 6 12 25 6 25 7 6 8 40 6 28 53 -0.13 -167 0 0 5 50 20 21 59 51.1 62 281 69 5 43 59 5 56 40 5 40 14 6 0 26 -0.13 -166 0 0 5 21 55 21 59 54.1 61 282 70 5 15 35 5 28 16 5 11 49 5 32 2 -0.13 -165 0 0 4 53 34 21 59 57.0 60 282 71 4 47 13 4 59 54 4 43 28 5 3 40 -0.13 -164 0 0 4 25 15 21 59 59.9 59 283 72 4 18 55 4 31 36 4 15 10 4 35 21 -0.13 -163 0 0 3 57 1 22 0 2.8 58 283 72 3 50 41 4 3 21 3 46 56 4 7 7 -0.13 -162 0 0 3 28 52 22 0 5.6 57 284 73 3 22 33 3 35 12 3 18 48 3 38 57 -0.13 -161 0 0 3 0 49 22 0 8.4 56 284 74 2 54 30 3 7 8 2 50 45 3 10 53 -0.13 -160 0 0 2 32 52 22 0 11.1 54 284 75 2 26 33 2 39 11 2 22 48 2 42 56 -0.13 -159 0 0 2 5 2 22 0 13.8 53 285 76 1 58 44 2 11 21 1 54 59 2 15 6 -0.13 -158 0 0 1 37 21 22 0 16.5 52 285 77 1 31 2 1 43 39 1 27 18 1 47 24 -0.13 -157 0 0 1 9 48 22 0 19.1 51 285 77 1 3 30 1 16 6 0 59 46 1 19 50 -0.13 -156 0 0 0 42 24 22 0 21.7 50 285 78 0 36 6 0 48 42 0 32 23 0 52 26 -0.13 -155 0 0 0 15 11 22 0 24.3 49 285 79 0 8 53 0 21 28 0 5 10 0 25 12 -0.13 -154 0 0 - 0 11 52 22 0 26.7 48 286 79 - 0 18 9 - 0 5 35 - 0 21 52 - 0 1 52 -0.14 -153 0 0 - 0 38 43 22 0 29.2 47 286 79 - 0 45 0 - 0 32 27 - 0 48 43 - 0 28 44 -0.14 -152 0 0 - 1 5 23 22 0 31.6 46 286 80 - 1 11 38 - 0 59 7 - 1 15 21 - 0 55 24 -0.14 -151 0 0 - 1 31 49 22 0 34.0 45 286 80 - 1 38 4 - 1 25 34 - 1 41 47 - 1 21 51 -0.14 -150 0 0 - 1 58 2 22 0 36.3 44 286 80 - 2 4 17 - 1 51 47 - 2 7 59 - 1 48 5 -0.14 -149 0 0 - 2 24 1 22 0 38.5 42 286 80 - 2 30 16 - 2 17 47 - 2 33 58 - 2 14 5 -0.14 -148 0 0 - 2 49 46 22 0 40.7 41 286 80 - 2 56 0 - 2 43 32 - 2 59 41 - 2 39 50 -0.14 -147 0 0 - 3 15 15 22 0 42.9 40 286 79 - 3 21 28 - 3 9 2 - 3 25 10 - 3 5 20 -0.14 -146 0 0 - 3 40 29 22 0 45.0 39 286 79 - 3 46 41 - 3 34 16 - 3 50 22 - 3 30 35 -0.14 -145 0 0 - 4 5 26 22 0 47.0 38 286 79 - 4 11 38 - 3 59 14 - 4 15 19 - 3 55 33 -0.14 -144 0 0 - 4 30 7 22 0 49.0 37 286 78 - 4 36 18 - 4 23 55 - 4 39 59 - 4 20 15 -0.14 -143 0 0 - 4 54 30 22 0 51.0 36 286 77 - 5 0 41 - 4 48 19 - 5 4 21 - 4 44 39 -0.14 -142 0 0 - 5 18 36 22 0 52.9 35 286 77 - 5 24 46 - 5 12 25 - 5 28 26 - 5 8 46 -0.14 -141 0 0 - 5 42 23 22 0 54.7 34 286 76 - 5 48 33 - 5 36 13 - 5 52 12 - 5 32 34 -0.14 -140 0 0 - 6 5 52 22 0 56.5 33 286 75 - 6 12 1 - 5 59 43 - 6 15 40 - 5 56 4 -0.14 -139 0 0 - 6 29 2 22 0 58.2 32 286 74 - 6 35 10 - 6 22 53 - 6 38 48 - 6 19 14 -0.14 -138 0 0 - 6 51 52 22 0 59.9 31 286 73 - 6 57 59 - 6 45 44 - 7 1 37 - 6 42 6 -0.14 -137 0 0 - 7 14 22 22 1 1.5 30 286 73 - 7 20 29 - 7 8 15 - 7 24 7 - 7 4 37 -0.14 -136 0 0 - 7 36 32 22 1 3.0 28 286 72 - 7 42 38 - 7 30 25 - 7 46 15 - 7 26 48 -0.14 -135 0 0 - 7 58 21 22 1 4.5 27 286 71 - 8 4 27 - 7 52 15 - 8 8 4 - 7 48 38 -0.14 -134 0 0 - 8 19 49 22 1 6.0 26 286 70 - 8 25 54 - 8 13 44 - 8 29 31 - 8 10 7 -0.14 -133 0 0 - 8 40 56 22 1 7.4 25 286 69 - 8 47 0 - 8 34 51 - 8 50 36 - 8 31 15 -0.14 -132 0 0 - 9 1 41 22 1 8.7 24 286 68 - 9 7 45 - 8 55 37 - 9 11 21 - 8 52 1 -0.14 -131 0 0 - 9 22 4 22 1 10.0 23 285 67 - 9 28 8 - 9 16 1 - 9 31 43 - 9 12 26 -0.14 -130 0 0 - 9 42 5 22 1 11.2 22 285 66 - 9 48 8 - 9 36 3 - 9 51 43 - 9 32 28 -0.14 -129 0 0 -10 1 44 22 1 12.4 21 285 65 -10 7 46 - 9 55 42 -10 11 20 - 9 52 7 -0.14 -128 0 0 -10 21 0 22 1 13.5 20 285 64 -10 27 1 -10 14 59 -10 30 35 -10 11 24 -0.14 -127 0 0 -10 39 53 22 1 14.5 19 285 63 -10 45 53 -10 33 52 -10 49 27 -10 30 18 -0.14 -126 0 0 -10 58 23 22 1 15.5 18 285 62 -11 4 22 -10 52 23 -11 7 56 -10 48 49 -0.14 -125 0 0 -11 16 29 22 1 16.4 17 285 61 -11 22 28 -11 10 29 -11 26 1 -11 6 56 -0.14 -124 0 0 -11 34 12 22 1 17.3 16 284 60 -11 40 10 -11 28 13 -11 43 43 -11 24 40 -0.14 -123 0 0 -11 51 31 22 1 18.1 15 284 59 -11 57 29 -11 45 32 -12 1 1 -11 42 0 -0.14 -122 0 0 -12 8 26 22 1 18.9 14 284 58 -12 14 23 -12 2 28 -12 17 55 -11 58 56 -0.14 -121 0 0 -12 24 57 22 1 19.6 13 284 57 -12 30 53 -12 19 0 -12 34 25 -12 15 28 -0.14 -120 0 0 -12 41 3 22 1 20.3 12 284 56 -12 47 0 -12 35 7 -12 50 31 -12 31 36 -0.14 -119 0 0 -12 56 46 22 1 20.9 11 283 56 -13 2 41 -12 50 50 -13 6 12 -12 47 19 -0.15 -118 0 0 -13 12 4 22 1 21.4 10 283 55 -13 17 59 -13 6 9 -13 21 29 -13 2 38 -0.15 -117 0 0 -13 26 57 22 1 21.9 9 283 54 -13 32 51 -13 21 3 -13 36 22 -13 17 32 -0.15 -116 0 0 -13 41 26 22 1 22.3 8 283 53 -13 47 19 -13 35 32 -13 50 49 -13 32 2 -0.15 -115 0 0 -13 55 29 22 1 22.7 7 282 52 -14 1 23 -13 49 36 -14 4 52 -13 46 7 -0.15 -114 0 0 -14 9 8 22 1 23.1 6 282 51 -14 15 1 -14 3 16 -14 18 30 -13 59 46 -0.16 -113 0 0 -14 22 22 22 1 23.3 5 282 50 -14 28 15 -14 16 30 -14 31 43 -14 13 1 -0.16 -112 0 0 -14 35 11 22 1 23.6 4 282 49 -14 41 3 -14 29 20 -14 44 31 -14 25 51 -0.17 -111 0 0 -14 47 35 22 1 23.7 3 281 48 -14 53 26 -14 41 44 -14 56 55 -14 38 16 -0.18 -110 0 0 -14 59 34 22 1 23.9 2 281 47 -15 5 25 -14 53 43 -15 8 52 -14 50 15 -0.20 -109 0 0 -15 11 7 22 1 23.9 1 281 46 -15 16 58 -15 5 17 -15 20 25 -15 1 49 -0.28 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 850-00859-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 11 02 30.1980 DE: +10 24 53.314 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 11 02 30.1981 DE: +10 24 53.313 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.2 * B mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (428) Monachia asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.010 distance from Earth [AU]: 2.97410 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 date of fit: 2023 Apr 24 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): 0.009", 0.003", 119.588° remarks: * orbital elements for (428)Monachia : Mean anomaly = 92.0016700200 deg Arg. of pericenter = 15.7394066817 deg Long. of node = 17.5217898952 deg Inclination = 6.1900542232 deg Eccentricity = 0.1784988270 Semimajor axis = 2.3073281574 AU Perihelion dist = 1.8954727879 AU Mag: H = 12.05, G = 0.15 Epoch of elements : MJD 60604.91566971 TDT (2024 Oct 21.9157) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,0.56,2024,10,21,21.976073,0.049721,0.117108,19.336916,-8.138508,-0.003605,0.001802,-0.000001,0.000000 165.4699,10.2831,-153.52,-11.12,False TYC 850-00859-1,11.04172161,10.4148098,11.40,11.16,11.03,0.0,0,,11.06305396,10.2831074,6.07,5.75,0,0,0 428,Monachia,17.23,20.958,2.9741,0,0,3.875,-24.07,,1.0,0 0,91.7442,2024,10,21,15.7394,17.5218,6.1901,0.17850,2.30733,1.89547,12.05,5.0,0.15 1.297,0.0093,0.0027,120,0.0029,Known errors,0.88,0,-1,-1 20241021_0859-1,60140.65 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org