IOTA/IOTA-ES occultation update for (2542) Calpurnia / UCAC4 401-056965 event on 2024 Dec 23, 03:18 UT Visible from Summary ------- On 2024 Dec 23 UT, the 21.3661328885612 km diameter asteroid (2542) Calpurnia will occult a 11.1 mag star in the constellation Virgo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.39 mag to 17.52 mag (the magnitude of the asteroid) for at most 0.640 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 Dec 23, 03:15 - 2024 Dec 23, 03:21 * geocentric midpoint of event [JD]: 2460667.63797454 * magnitude of target star: 11.13 * magnitude drop [mag]: 6.39 * estimated maximum duration [s]: 0.640 * Moon: 48 % sunlit, 30° distance * Sun: 57° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 23 * 1 sigma uncertainty interval [path widths]: +/- 0.13 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.001", 107°) * approx speed of asteroid's shadow [km/s]: 33.8253 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 401-056965 by 2542 Calpurnia on 2024 Dec 23 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 - 10 0 0 34 13 6 3 15 42.6 1 103 -54 34 6 47 34 19 25 34 5 8 34 21 4 .... - 9 0 0 34 2 1 3 15 42.7 2 103 -53 33 55 41 34 8 20 33 54 2 34 9 59 -0.20 - 8 0 0 33 50 39 3 15 42.8 2 104 -53 33 44 19 33 56 59 33 42 40 33 58 38 -0.24 - 7 0 0 33 39 1 3 15 42.9 3 104 -52 33 32 41 33 45 22 33 31 2 33 47 1 -0.27 - 6 0 0 33 27 7 3 15 43.1 4 105 -51 33 20 46 33 33 28 33 19 7 33 35 7 -0.28 - 5 0 0 33 14 57 3 15 43.3 5 105 -50 33 8 36 33 21 19 33 6 57 33 22 58 -0.29 - 4 0 0 33 2 31 3 15 43.6 6 106 -49 32 56 9 33 8 53 32 54 30 33 10 32 -0.30 - 3 0 0 32 49 49 3 15 43.9 7 106 -49 32 43 27 32 56 11 32 41 48 32 57 51 -0.30 - 2 0 0 32 36 51 3 15 44.3 8 107 -48 32 30 29 32 43 14 32 28 49 32 44 54 -0.31 - 1 0 0 32 23 38 3 15 44.7 9 108 -47 32 17 15 32 30 1 32 15 35 32 31 41 -0.31 0 0 0 32 10 9 3 15 45.2 9 108 -46 32 3 45 32 16 32 32 2 6 32 18 12 -0.31 1 0 0 31 56 24 3 15 45.7 10 109 -45 31 50 0 32 2 48 31 48 20 32 4 28 -0.31 2 0 0 31 42 24 3 15 46.3 11 109 -44 31 36 0 31 48 48 31 34 20 31 50 28 -0.32 3 0 0 31 28 9 3 15 46.9 12 110 -43 31 21 44 31 34 34 31 20 4 31 36 14 -0.32 4 0 0 31 13 38 3 15 47.6 13 110 -43 31 7 13 31 20 4 31 5 33 31 21 44 -0.32 5 0 0 30 58 53 3 15 48.3 14 111 -42 30 52 28 31 5 19 30 50 47 31 6 59 -0.32 6 0 0 30 43 53 3 15 49.1 15 111 -41 30 37 27 30 50 19 30 35 47 30 52 0 -0.32 7 0 0 30 28 38 3 15 49.9 16 112 -40 30 22 12 30 35 5 30 20 32 30 36 45 -0.32 8 0 0 30 13 9 3 15 50.8 16 112 -39 30 6 42 30 19 36 30 5 2 30 21 17 -0.32 9 0 0 29 57 26 3 15 51.7 17 113 -38 29 50 58 30 3 53 29 49 18 30 5 34 -0.32 10 0 0 29 41 28 3 15 52.6 18 113 -37 29 35 1 29 47 56 29 33 20 29 49 37 -0.32 11 0 0 29 25 17 3 15 53.7 19 114 -36 29 18 49 29 31 45 29 17 8 29 33 26 -0.32 12 0 0 29 8 51 3 15 54.7 20 114 -35 29 2 23 29 15 20 29 0 42 29 17 1 -0.32 13 0 0 28 52 13 3 15 55.9 21 115 -34 28 45 44 28 58 42 28 44 3 29 0 23 -0.33 14 0 0 28 35 21 3 15 57.0 22 116 -34 28 28 52 28 41 51 28 27 11 28 43 32 -0.33 15 0 0 28 18 17 3 15 58.3 23 116 -33 28 11 47 28 24 46 28 10 6 28 26 28 -0.33 16 0 0 28 0 59 3 15 59.6 24 117 -32 27 54 29 28 7 29 27 52 48 28 9 11 -0.33 17 0 0 27 43 29 3 16 0.9 25 117 -31 27 36 59 27 50 0 27 35 18 27 51 41 -0.33 18 0 0 27 25 47 3 16 2.3 26 118 -30 27 19 17 27 32 18 27 17 35 27 34 0 -0.33 19 0 0 27 7 53 3 16 3.7 27 118 -29 27 1 22 27 14 24 26 59 41 27 16 6 -0.33 20 0 0 26 49 48 3 16 5.2 28 119 -28 26 43 17 26 56 19 26 41 35 26 58 1 -0.33 21 0 0 26 31 31 3 16 6.8 28 119 -27 26 24 59 26 38 3 26 23 18 26 39 44 -0.33 22 0 0 26 13 3 3 16 8.4 29 120 -26 26 6 31 26 19 35 26 4 49 26 21 17 -0.33 23 0 0 25 54 24 3 16 10.0 30 120 -25 25 47 52 26 0 57 25 46 10 26 2 39 -0.33 24 0 0 25 35 35 3 16 11.7 31 121 -24 25 29 3 25 42 8 25 27 21 25 43 50 -0.33 25 0 0 25 16 36 3 16 13.5 32 121 -23 25 10 4 25 23 9 25 8 22 25 24 52 -0.33 26 0 0 24 57 28 3 16 15.3 33 122 -22 24 50 55 25 4 1 24 49 13 25 5 43 -0.33 27 0 0 24 38 10 3 16 17.2 34 123 -21 24 31 37 24 44 43 24 29 55 24 46 26 -0.33 28 0 0 24 18 43 3 16 19.1 35 123 -20 24 12 10 24 25 17 24 10 27 24 26 59 -0.33 29 0 0 23 59 8 3 16 21.0 36 124 -19 23 52 34 24 5 41 23 50 52 24 7 24 -0.33 30 0 0 23 39 24 3 16 23.1 37 124 -18 23 32 50 23 45 58 23 31 8 23 47 41 -0.33 31 0 0 23 19 33 3 16 25.1 38 125 -17 23 12 59 23 26 7 23 11 16 23 27 49 -0.33 32 0 0 22 59 34 3 16 27.3 39 126 -16 22 53 0 23 6 8 22 51 17 23 7 51 -0.33 33 0 0 22 39 28 3 16 29.4 40 126 -15 22 32 54 22 46 3 22 31 12 22 47 46 -0.33 34 0 0 22 19 16 3 16 31.7 41 127 -14 22 12 42 22 25 51 22 10 59 22 27 34 -0.33 35 0 0 21 58 58 3 16 33.9 42 127 -13 21 52 23 22 5 33 21 50 41 22 7 16 -0.33 36 0 0 21 38 34 3 16 36.3 43 128 -12 21 31 59 21 45 9 21 30 17 21 46 52 -0.33 37 0 0 21 18 5 3 16 38.6 44 129 -11 21 11 30 21 24 40 21 9 48 21 26 23 -0.33 38 0 0 20 57 31 3 16 41.1 45 129 -10 20 50 57 21 4 6 20 49 14 21 5 49 -0.33 39 0 0 20 36 53 3 16 43.5 45 130 -9 20 30 18 20 43 28 20 28 36 20 45 11 -0.33 40 0 0 20 16 11 3 16 46.1 46 131 -8 20 9 36 20 22 47 20 7 54 20 24 29 -0.33 41 0 0 19 55 26 3 16 48.6 47 132 -7 19 48 51 20 2 1 19 47 9 20 3 44 -0.33 42 0 0 19 34 38 3 16 51.2 48 132 -6 19 28 3 19 41 13 19 26 20 19 42 56 -0.33 43 0 0 19 13 48 3 16 53.9 49 133 -5 19 7 13 19 20 23 19 5 30 19 22 6 -0.33 44 0 0 18 52 55 3 16 56.6 50 134 -4 18 46 21 18 59 31 18 44 38 19 1 14 -0.33 45 0 0 18 32 2 3 16 59.3 51 135 -3 18 25 27 18 38 37 18 23 44 18 40 20 -0.33 46 0 0 18 11 7 3 17 2.1 52 136 -2 18 4 33 18 17 43 18 2 50 18 19 25 -0.33 47 0 0 17 50 12 3 17 4.9 53 137 -1 17 43 38 17 56 48 17 41 55 17 58 30 -0.33 48 0 0 17 29 18 3 17 7.8 54 138 0 17 22 43 17 35 53 17 21 0 17 37 35 -0.33 49 0 0 17 8 23 3 17 10.7 55 138 1 17 1 49 17 14 58 17 0 6 17 16 41 -0.33 50 0 0 16 47 30 3 17 13.6 56 139 2 16 40 56 16 54 5 16 39 13 16 55 48 -0.34 51 0 0 16 26 39 3 17 16.6 57 141 3 16 20 5 16 33 14 16 18 22 16 34 56 -0.34 52 0 0 16 5 50 3 17 19.6 57 142 4 15 59 16 16 12 24 15 57 33 16 14 7 -0.34 53 0 0 15 45 3 3 17 22.6 58 143 5 15 38 29 15 51 37 15 36 47 15 53 20 -0.34 54 0 0 15 24 20 3 17 25.7 59 144 6 15 17 46 15 30 54 15 16 3 15 32 36 -0.34 55 0 0 15 3 40 3 17 28.8 60 145 7 14 57 6 15 10 14 14 55 24 15 11 56 -0.34 56 0 0 14 43 4 3 17 31.9 61 147 8 14 36 31 14 49 38 14 34 49 14 51 21 -0.34 57 0 0 14 22 33 3 17 35.1 62 148 9 14 16 0 14 29 7 14 14 18 14 30 49 -0.34 58 0 0 14 2 8 3 17 38.3 62 150 10 13 55 35 14 8 41 13 53 53 14 10 23 -0.34 59 0 0 13 41 48 3 17 41.5 63 151 11 13 35 15 13 48 21 13 33 33 13 50 3 -0.34 60 0 0 13 21 34 3 17 44.7 64 153 12 13 15 1 13 28 7 13 13 19 13 29 49 -0.34 61 0 0 13 1 27 3 17 48.0 65 155 13 12 54 54 13 7 59 12 53 12 13 9 41 -0.34 62 0 0 12 41 26 3 17 51.3 65 157 14 12 34 55 12 47 59 12 33 13 12 49 41 -0.34 63 0 0 12 21 34 3 17 54.6 66 159 15 12 15 2 12 28 6 12 13 21 12 29 48 -0.34 64 0 0 12 1 50 3 17 57.9 67 161 16 11 55 18 12 8 21 11 53 37 12 10 3 -0.34 65 0 0 11 42 14 3 18 1.3 67 163 17 11 35 43 11 48 45 11 34 1 11 50 27 -0.34 66 0 0 11 22 47 3 18 4.6 68 165 18 11 16 17 11 29 18 11 14 35 11 31 0 -0.34 67 0 0 11 3 30 3 18 8.0 68 168 19 10 57 0 11 10 1 10 55 18 11 11 42 -0.34 68 0 0 10 44 23 3 18 11.4 69 170 20 10 37 53 10 50 53 10 36 11 10 52 34 -0.34 69 0 0 10 25 26 3 18 14.8 69 173 21 10 18 56 10 31 56 10 17 15 10 33 37 -0.34 70 0 0 10 6 40 3 18 18.2 70 176 22 10 0 11 10 13 9 9 58 29 10 14 51 -0.34 71 0 0 9 48 5 3 18 21.6 70 178 23 9 41 36 9 54 34 9 39 55 9 56 15 -0.34 72 0 0 9 29 42 3 18 25.0 71 181 24 9 23 13 9 36 11 9 21 32 9 37 52 -0.34 73 0 0 9 11 31 3 18 28.5 71 184 25 9 5 3 9 17 59 9 3 22 9 19 40 -0.34 74 0 0 8 53 32 3 18 31.9 71 188 26 8 47 5 9 0 0 8 45 24 9 1 41 -0.34 75 0 0 8 35 47 3 18 35.3 71 191 27 8 29 19 8 42 14 8 27 39 8 43 55 -0.34 76 0 0 8 18 14 3 18 38.8 71 194 28 8 11 47 8 24 41 8 10 7 8 26 22 -0.34 77 0 0 8 0 55 3 18 42.2 71 197 29 7 54 29 8 7 22 7 52 48 8 9 3 -0.34 78 0 0 7 43 51 3 18 45.6 71 200 30 7 37 25 7 50 17 7 35 44 7 51 58 -0.34 79 0 0 7 27 1 3 18 49.1 71 203 31 7 20 35 7 33 26 7 18 55 7 35 7 -0.34 80 0 0 7 10 25 3 18 52.5 71 207 32 7 4 0 7 16 50 7 2 19 7 18 31 -0.34 81 0 0 6 54 4 3 18 55.9 71 210 33 6 47 40 7 0 29 6 46 0 7 2 10 -0.34 82 0 0 6 37 59 3 18 59.3 70 213 34 6 31 35 6 44 24 6 29 55 6 46 4 -0.34 83 0 0 6 22 10 3 19 2.7 70 215 35 6 15 46 6 28 34 6 14 6 6 30 14 -0.34 84 0 0 6 6 37 3 19 6.1 70 218 36 6 0 13 6 13 1 5 58 33 6 14 40 -0.34 85 0 0 5 51 20 3 19 9.5 69 221 37 5 44 57 5 57 43 5 43 17 5 59 23 -0.34 86 0 0 5 36 19 3 19 12.9 69 223 38 5 29 57 5 42 42 5 28 17 5 44 22 -0.34 87 0 0 5 21 36 3 19 16.2 68 226 39 5 15 14 5 27 59 5 13 34 5 29 38 -0.34 88 0 0 5 7 10 3 19 19.6 68 228 40 5 0 48 5 13 32 4 59 9 5 15 11 -0.34 89 0 0 4 53 1 3 19 22.9 67 230 41 4 46 40 4 59 23 4 45 1 5 1 2 -0.34 90 0 0 4 39 10 3 19 26.2 66 232 42 4 32 49 4 45 31 4 31 10 4 47 11 -0.34 91 0 0 4 25 37 3 19 29.5 66 234 43 4 19 17 4 31 58 4 17 38 4 33 37 -0.34 92 0 0 4 12 22 3 19 32.8 65 235 44 4 6 2 4 18 43 4 4 23 4 20 22 -0.34 93 0 0 3 59 26 3 19 36.0 64 237 45 3 53 6 4 5 46 3 51 28 4 7 25 -0.34 94 0 0 3 46 48 3 19 39.2 63 239 46 3 40 29 3 53 8 3 38 50 3 54 47 -0.34 95 0 0 3 34 30 3 19 42.4 63 240 47 3 28 11 3 40 49 3 26 32 3 42 28 -0.34 96 0 0 3 22 30 3 19 45.6 62 241 48 3 16 11 3 28 49 3 14 33 3 30 27 -0.34 97 0 0 3 10 50 3 19 48.7 61 243 48 3 4 31 3 17 8 3 2 53 3 18 47 -0.34 98 0 0 2 59 29 3 19 51.9 60 244 49 2 53 11 3 5 47 2 51 32 3 7 25 -0.34 99 0 0 2 48 27 3 19 55.0 59 245 50 2 42 10 2 54 45 2 40 32 2 56 23 -0.34 100 0 0 2 37 46 3 19 58.0 59 246 51 2 31 29 2 44 3 2 29 51 2 45 41 -0.34 101 0 0 2 27 24 3 20 1.0 58 247 52 2 21 7 2 33 41 2 19 29 2 35 19 -0.34 102 0 0 2 17 23 3 20 4.0 57 248 53 2 11 6 2 23 39 2 9 28 2 25 18 -0.34 103 0 0 2 7 42 3 20 7.0 56 249 54 2 1 26 2 13 58 1 59 48 2 15 36 -0.34 104 0 0 1 58 21 3 20 10.0 55 249 54 1 52 5 2 4 37 1 50 27 2 6 15 -0.34 105 0 0 1 49 21 3 20 12.9 54 250 55 1 43 5 1 55 36 1 41 28 1 57 14 -0.34 106 0 0 1 40 41 3 20 15.7 53 251 56 1 34 26 1 46 57 1 32 49 1 48 34 -0.34 107 0 0 1 32 23 3 20 18.5 52 251 57 1 26 8 1 38 38 1 24 30 1 40 15 -0.34 108 0 0 1 24 25 3 20 21.3 51 252 57 1 18 10 1 30 40 1 16 33 1 32 17 -0.34 109 0 0 1 16 48 3 20 24.1 51 252 58 1 10 34 1 23 2 1 8 56 1 24 40 -0.34 110 0 0 1 9 32 3 20 26.8 50 253 59 1 3 18 1 15 46 1 1 41 1 17 24 -0.34 111 0 0 1 2 38 3 20 29.5 49 253 60 0 56 24 1 8 52 0 54 47 1 10 29 -0.34 112 0 0 0 56 4 3 20 32.1 48 254 60 0 49 51 1 2 18 0 48 14 1 3 55 -0.34 113 0 0 0 49 52 3 20 34.7 47 254 61 0 43 39 0 56 6 0 42 2 0 57 43 -0.34 114 0 0 0 44 2 3 20 37.3 46 255 61 0 37 49 0 50 15 0 36 12 0 51 52 -0.34 115 0 0 0 38 33 3 20 39.8 45 255 62 0 32 20 0 44 46 0 30 43 0 46 23 -0.34 116 0 0 0 33 25 3 20 42.2 44 255 63 0 27 13 0 39 38 0 25 36 0 41 15 -0.34 117 0 0 0 28 40 3 20 44.7 43 256 63 0 22 27 0 34 52 0 20 50 0 36 29 -0.34 118 0 0 0 24 15 3 20 47.1 42 256 64 0 18 3 0 30 28 0 16 26 0 32 5 -0.34 119 0 0 0 20 13 3 20 49.4 41 256 64 0 14 1 0 26 25 0 12 24 0 28 2 -0.34 120 0 0 0 16 32 3 20 51.7 40 257 65 0 10 20 0 22 44 0 8 43 0 24 21 -0.34 121 0 0 0 13 13 3 20 53.9 39 257 65 0 7 1 0 19 25 0 5 24 0 21 2 -0.34 122 0 0 0 10 16 3 20 56.1 38 257 65 0 4 4 0 16 28 0 2 27 0 18 5 -0.34 123 0 0 0 7 41 3 20 58.3 37 257 66 0 1 29 0 13 53 - 0 0 8 0 15 29 -0.34 124 0 0 0 5 27 3 21 0.4 36 257 66 - 0 0 44 0 11 39 - 0 2 21 0 13 16 -0.34 125 0 0 0 3 36 3 21 2.4 35 258 66 - 0 2 36 0 9 47 - 0 4 13 0 11 24 -0.35 126 0 0 0 2 6 3 21 4.4 34 258 66 - 0 4 6 0 8 18 - 0 5 42 0 9 54 -0.35 127 0 0 0 0 58 3 21 6.3 33 258 66 - 0 5 14 0 7 9 - 0 6 50 0 8 46 -0.35 128 0 0 0 0 12 3 21 8.2 32 258 67 - 0 6 0 0 6 23 - 0 7 36 0 8 0 -0.35 129 0 0 - 0 0 12 3 21 10.1 31 258 67 - 0 6 24 0 5 59 - 0 8 0 0 7 36 -0.35 130 0 0 - 0 0 15 3 21 11.9 30 258 67 - 0 6 26 0 5 57 - 0 8 3 0 7 34 -0.35 131 0 0 0 0 5 3 21 13.6 29 258 67 - 0 6 7 0 6 16 - 0 7 43 0 7 53 -0.35 132 0 0 0 0 46 3 21 15.3 28 259 66 - 0 5 25 0 6 58 - 0 7 2 0 8 35 -0.35 133 0 0 0 1 49 3 21 17.0 27 259 66 - 0 4 22 0 8 1 - 0 5 59 0 9 38 -0.35 134 0 0 0 3 14 3 21 18.5 26 259 66 - 0 2 57 0 9 26 - 0 4 34 0 11 3 -0.35 135 0 0 0 5 1 3 21 20.1 25 259 66 - 0 1 10 0 11 13 - 0 2 47 0 12 50 -0.35 136 0 0 0 7 10 3 21 21.5 24 259 66 0 0 58 0 13 21 - 0 0 39 0 14 58 -0.35 137 0 0 0 9 40 3 21 22.9 23 259 65 0 3 28 0 15 51 0 1 51 0 17 28 -0.35 138 0 0 0 12 31 3 21 24.3 22 259 65 0 6 20 0 18 43 0 4 43 0 20 20 -0.35 139 0 0 0 15 45 3 21 25.6 21 259 65 0 9 33 0 21 57 0 7 56 0 23 33 -0.35 140 0 0 0 19 19 3 21 26.9 20 259 64 0 13 7 0 25 32 0 11 31 0 27 8 -0.35 141 0 0 0 23 16 3 21 28.1 19 259 64 0 17 3 0 29 28 0 15 27 0 31 5 -0.35 142 0 0 0 27 33 3 21 29.2 18 259 63 0 21 21 0 33 46 0 19 44 0 35 23 -0.35 143 0 0 0 32 12 3 21 30.3 17 259 63 0 26 0 0 38 25 0 24 23 0 40 2 -0.35 144 0 0 0 37 12 3 21 31.3 16 259 62 0 31 0 0 43 25 0 29 23 0 45 2 -0.35 145 0 0 0 42 34 3 21 32.2 15 259 61 0 36 21 0 48 47 0 34 44 0 50 24 -0.35 146 0 0 0 48 16 3 21 33.1 14 259 61 0 42 3 0 54 29 0 40 26 0 56 7 -0.35 147 0 0 0 54 20 3 21 34.0 13 259 60 0 48 7 1 0 33 0 46 29 1 2 10 -0.35 148 0 0 1 0 44 3 21 34.8 12 260 60 0 54 31 1 6 58 0 52 54 1 8 35 -0.35 149 0 0 1 7 29 3 21 35.5 11 260 59 1 1 16 1 13 43 0 59 38 1 15 20 -0.35 150 0 0 1 14 35 3 21 36.1 10 260 58 1 8 21 1 20 49 1 6 44 1 22 27 -0.35 151 0 0 1 22 2 3 21 36.7 9 260 57 1 15 47 1 28 16 1 14 10 1 29 53 -0.35 152 0 0 1 29 48 3 21 37.3 8 260 57 1 23 34 1 36 3 1 21 57 1 37 41 -0.35 153 0 0 1 37 56 3 21 37.8 7 260 56 1 31 41 1 44 11 1 30 4 1 45 48 -0.35 154 0 0 1 46 23 3 21 38.2 6 260 55 1 40 8 1 52 38 1 38 31 1 54 16 -0.36 155 0 0 1 55 11 3 21 38.5 5 260 54 1 48 55 2 1 26 1 47 18 2 3 4 -0.36 156 0 0 2 4 18 3 21 38.8 4 260 54 1 58 3 2 10 34 1 56 25 2 12 12 -0.36 157 0 0 2 13 45 3 21 39.1 3 260 53 2 7 29 2 20 1 2 5 52 2 21 39 -0.37 158 0 0 2 23 32 3 21 39.2 2 260 52 2 17 16 2 29 49 2 15 38 2 31 27 -0.39 159 0 0 2 33 39 3 21 39.3 1 260 51 2 27 22 2 39 55 2 25 44 2 41 33 -0.42 160 0 0 2 44 4 3 21 39.4 0 260 50 2 37 47 2 50 21 2 36 9 2 51 59 -0.77 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.8 Data for the target star ------------------------ * name: UCAC4 401-056965 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 11 54.4311 DE: -09 53 36.461 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 11 54.4312 DE: -09 53 36.461 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.1 * B mag [mag]: 12.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2542) Calpurnia asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.009 distance from Earth [AU]: 3.27970 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): 0.017", 0.001", 106.804° remarks: * orbital elements for (2542)Calpurnia : Mean anomaly = 1.6309655500 deg Arg. of pericenter = 49.9304627058 deg Long. of node = 145.5847007437 deg Inclination = 4.6353802142 deg Eccentricity = 0.0813760768 Semimajor axis = 3.1254453985 AU Perihelion dist = 2.8711089137 AU Mag: H = 11.76, G = 0.15 Epoch of elements : MJD 60667.13797471 TDT (2024 Dec 23.1380) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,0.64,2024,12,23,3.311389,0.089390,0.309489,18.353128,-5.259737,-0.004667,0.001840,-0.000001,0.000000 71.4712,-10.0104,130.11,-23.43,False UCAC4 401-056965,14.19845306,-9.8934611,12.05,11.13,10.63,0.1,0,,14.22043909,-10.0103715,6.40,6.44,0,0,0 2542,Calpurnia,17.52,21.604,3.2797,0,0,3.332,-14.10,,1.6,0 0,1.6064,2024,12,23,49.9305,145.5847,4.6354,0.08138,3.12545,2.87111,11.76,5.0,0.15 1.130,0.0170,0.0012,107,0.0012,Known errors,1.10,0,-1,-1 20241223_056965,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 18:02 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org