IOTA/IOTA-ES occultation update for (406) Erna / UCAC4 324-125937 event on 2024 Sep 16, 11:14 UT Visible from Summary ------- On 2024 Sep 16 UT, the 47.052797671059 km diameter asteroid (406) Erna will occult a 8.6 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.73 mag to 15.29 mag (the magnitude of the asteroid) for at most 4.310 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: 97 * date and approx. time of event: 2024 Sep 16, 11:07 - 2024 Sep 16, 11:20 * geocentric midpoint of event [JD]: 2460569.96818854 * magnitude of target star: 8.56 * magnitude drop [mag]: 6.73 * estimated maximum duration [s]: 4.310 * Moon: 96 % sunlit, 60° distance * Sun: 97° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 75 * 1 sigma uncertainty interval [path widths]: +/- 0.38 * 1 sigma uncertainty interval [seconds]: +/- 3.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.013) * 1 sigma uncertainty ellipse (major, minor, PA): (0.031", 0.013", 86°) * approx speed of asteroid's shadow [km/s]: 13.7432 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 324-125937 by 406 Erna on 2024 Sep 16 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 32 0 0 25 41 7 11 8 4.0 1 118 60 25 18 23 26 4 0 25 1 20 26 21 19 25 27 46 25 54 31 .... 33 0 0 25 12 12 11 8 4.2 2 119 59 24 49 32 25 35 0 24 32 32 25 52 16 24 58 53 25 25 33 -0.38 34 0 0 24 43 35 11 8 4.6 3 119 59 24 20 59 25 6 18 24 4 2 25 23 31 24 30 19 24 56 53 -0.53 35 0 0 24 15 17 11 8 5.1 4 120 59 23 52 45 24 37 57 23 35 51 24 55 6 24 2 3 24 28 33 -0.59 36 0 0 23 47 20 11 8 5.9 5 120 58 23 24 52 24 9 55 23 8 1 24 27 1 23 34 8 24 0 34 -0.63 37 0 0 23 19 43 11 8 6.8 6 121 58 22 57 20 23 42 14 22 40 33 23 59 17 23 6 35 23 32 55 -0.65 38 0 0 22 52 29 11 8 8.0 7 121 57 22 30 10 23 14 55 22 13 25 23 31 55 22 39 23 23 5 38 -0.67 39 0 0 22 25 37 11 8 9.3 8 121 57 22 3 22 22 47 59 21 46 41 23 4 55 22 12 33 22 38 43 -0.68 40 0 0 21 59 8 11 8 10.8 9 122 56 21 36 57 22 21 26 21 20 19 22 38 19 21 46 7 22 12 12 -0.69 41 0 0 21 33 4 11 8 12.5 10 122 56 21 10 57 21 55 17 20 54 22 22 12 7 21 20 5 21 46 5 -0.70 42 0 0 21 7 24 11 8 14.3 11 123 55 20 45 21 21 29 33 20 28 50 21 46 20 20 54 27 21 20 23 -0.70 43 0 0 20 42 10 11 8 16.4 12 123 54 20 20 11 21 4 15 20 3 42 21 20 58 20 29 16 20 55 6 -0.71 44 0 0 20 17 21 11 8 18.6 13 123 54 19 55 27 20 39 22 19 39 1 20 56 3 20 4 30 20 30 15 -0.71 45 0 0 19 53 0 11 8 21.1 14 124 53 19 31 10 20 14 57 19 14 47 20 31 34 19 40 11 20 5 51 -0.72 46 0 0 19 29 5 11 8 23.7 15 124 52 19 7 19 19 50 58 18 51 0 20 7 32 19 16 19 19 41 55 -0.72 47 0 0 19 5 39 11 8 26.5 16 125 52 18 43 57 19 27 28 18 27 40 19 43 59 18 52 54 19 18 26 -0.72 48 0 0 18 42 41 11 8 29.4 17 125 51 18 21 3 19 4 26 18 4 49 19 20 54 18 29 59 18 55 25 -0.73 49 0 0 18 20 12 11 8 32.6 18 125 50 17 58 37 18 41 53 17 42 26 18 58 18 18 7 32 18 32 54 -0.73 50 0 0 17 58 12 11 8 35.9 19 126 49 17 36 41 18 19 49 17 20 33 18 36 11 17 45 34 18 10 52 -0.73 51 0 0 17 36 42 11 8 39.4 20 126 48 17 15 15 17 58 16 16 59 10 18 14 35 17 24 7 17 49 20 -0.73 52 0 0 17 15 43 11 8 43.0 21 127 48 16 54 20 17 37 13 16 38 17 17 53 29 17 3 10 17 28 18 -0.73 53 0 0 16 55 14 11 8 46.8 22 127 47 16 33 55 17 16 40 16 17 55 17 32 54 16 42 43 17 7 48 -0.74 54 0 0 16 35 17 11 8 50.8 23 127 46 16 14 1 16 56 40 15 58 4 17 12 50 16 22 48 16 47 49 -0.74 55 0 0 16 15 52 11 8 55.0 24 128 45 15 54 39 16 37 11 15 38 45 16 53 19 16 3 25 16 28 21 -0.74 56 0 0 15 56 59 11 8 59.3 25 128 44 15 35 49 16 18 14 15 19 57 16 34 19 15 44 33 16 9 26 -0.74 57 0 0 15 38 38 11 9 3.8 26 129 43 15 17 32 15 59 50 15 1 42 16 15 52 15 26 15 15 51 3 -0.74 58 0 0 15 20 50 11 9 8.4 27 129 42 14 59 47 15 41 58 14 44 0 15 57 59 15 8 28 15 33 13 -0.74 59 0 0 15 3 35 11 9 13.2 28 130 41 14 42 35 15 24 40 14 26 50 15 40 38 14 51 15 15 15 56 -0.74 60 0 0 14 46 53 11 9 18.1 29 130 40 14 25 57 15 7 56 14 10 14 15 23 51 14 34 36 14 59 13 -0.75 61 0 0 14 30 46 11 9 23.1 29 131 40 14 9 52 14 51 45 13 54 12 15 7 38 14 18 30 14 43 4 -0.75 62 0 0 14 15 12 11 9 28.4 30 131 39 13 54 21 14 36 9 13 38 43 14 52 0 14 2 58 14 27 28 -0.75 63 0 0 14 0 13 11 9 33.7 31 132 38 13 39 25 14 21 7 13 23 48 14 36 55 13 48 0 14 12 27 -0.75 64 0 0 13 45 48 11 9 39.2 32 132 37 13 25 3 14 6 39 13 9 28 14 22 26 13 33 37 13 58 1 -0.75 65 0 0 13 31 58 11 9 44.8 33 133 36 13 11 15 13 52 47 12 55 43 14 8 31 13 19 49 13 44 10 -0.75 66 0 0 13 18 43 11 9 50.6 34 133 35 12 58 3 13 39 29 12 42 32 13 55 12 13 6 35 13 30 53 -0.75 67 0 0 13 6 3 11 9 56.5 35 134 34 12 45 26 13 26 47 12 29 57 13 42 28 12 53 57 13 18 12 -0.75 68 0 0 12 53 59 11 10 2.5 36 135 33 12 33 24 13 14 41 12 17 56 13 30 20 12 41 54 13 6 7 -0.75 69 0 0 12 42 31 11 10 8.6 37 135 32 12 21 57 13 3 10 12 6 31 13 18 48 12 30 27 12 54 37 -0.76 70 0 0 12 31 38 11 10 14.8 37 136 31 12 11 6 12 52 15 11 55 42 13 7 51 12 19 35 12 43 43 -0.76 71 0 0 12 21 21 11 10 21.2 38 137 30 12 0 52 12 41 57 11 45 29 12 57 31 12 9 19 12 33 25 -0.76 72 0 0 12 11 41 11 10 27.7 39 137 29 11 51 13 12 32 14 11 35 51 12 47 47 11 59 40 12 23 43 -0.76 73 0 0 12 2 36 11 10 34.3 40 138 28 11 42 10 12 23 8 11 26 50 12 38 40 11 50 36 12 14 38 -0.76 74 0 0 11 54 8 11 10 41.0 41 139 27 11 33 44 12 14 38 11 18 25 12 30 9 11 42 9 12 6 9 -0.76 75 0 0 11 46 17 11 10 47.8 41 140 26 11 25 54 12 6 45 11 10 36 12 22 15 11 34 19 11 58 17 -0.76 76 0 0 11 39 2 11 10 54.6 42 140 25 11 18 40 11 59 29 11 3 23 12 14 58 11 27 5 11 51 1 -0.76 77 0 0 11 32 24 11 11 1.6 43 141 24 11 12 3 11 52 50 10 56 47 12 8 18 11 20 27 11 44 22 -0.76 78 0 0 11 26 23 11 11 8.7 43 142 23 11 6 3 11 46 48 10 50 48 12 2 15 11 14 27 11 38 21 -0.76 79 0 0 11 20 59 11 11 15.9 44 143 22 11 0 40 11 41 23 10 45 26 11 56 49 11 9 3 11 32 56 -0.76 80 0 0 11 16 12 11 11 23.1 45 144 21 10 55 54 11 36 35 10 40 40 11 52 0 11 4 17 11 28 8 -0.76 81 0 0 11 12 2 11 11 30.5 45 145 20 10 51 45 11 32 24 10 36 32 11 47 49 11 0 7 11 23 58 -0.76 82 0 0 11 8 29 11 11 37.9 46 146 19 10 48 13 11 28 51 10 33 0 11 44 15 10 56 35 11 20 25 -0.76 83 0 0 11 5 33 11 11 45.4 47 147 18 10 45 18 11 25 55 10 30 5 11 41 18 10 53 40 11 17 29 -0.76 84 0 0 11 3 15 11 11 53.0 47 148 17 10 43 0 11 23 36 10 27 47 11 39 0 10 51 22 11 15 10 -0.77 85 0 0 11 1 34 11 12 0.6 48 149 16 10 41 19 11 21 55 10 26 7 11 37 18 10 49 41 11 13 29 -0.77 86 0 0 11 0 31 11 12 8.3 48 150 15 10 40 16 11 20 51 10 25 4 11 36 14 10 48 37 11 12 26 -0.77 87 0 0 11 0 5 11 12 16.1 49 152 14 10 39 50 11 20 25 10 24 38 11 35 48 10 48 11 11 12 0 -0.77 88 0 0 11 0 16 11 12 23.9 49 153 13 10 40 1 11 20 37 10 24 49 11 36 0 10 48 23 11 12 11 -0.77 89 0 0 11 1 5 11 12 31.8 50 154 12 10 40 49 11 21 26 10 25 37 11 36 49 10 49 11 11 13 0 -0.77 90 0 0 11 2 31 11 12 39.7 50 155 11 10 42 16 11 22 53 10 27 3 11 38 16 10 50 38 11 14 27 -0.77 91 0 0 11 4 35 11 12 47.7 50 157 10 10 44 19 11 24 57 10 29 6 11 40 21 10 52 41 11 16 31 -0.77 92 0 0 11 7 17 11 12 55.7 51 158 9 10 47 0 11 27 39 10 31 47 11 43 4 10 55 23 11 19 13 -0.77 93 0 0 11 10 36 11 13 3.8 51 160 8 10 50 19 11 30 59 10 35 5 11 46 25 10 58 42 11 22 33 -0.77 94 0 0 11 14 33 11 13 11.9 51 161 7 10 54 14 11 34 57 10 39 0 11 50 23 11 2 37 11 26 30 -0.77 95 0 0 11 19 7 11 13 20.0 52 162 6 10 58 47 11 39 32 10 43 32 11 54 59 11 7 11 11 31 5 -0.77 96 0 0 11 24 18 11 13 28.2 52 164 5 11 3 58 11 44 45 10 48 42 12 0 12 11 12 22 11 36 17 -0.77 97 0 0 11 30 8 11 13 36.4 52 165 4 11 9 46 11 50 35 10 54 29 12 6 3 11 18 10 11 42 7 -0.77 98 0 0 11 36 34 11 13 44.6 52 167 3 11 16 11 11 57 3 11 0 53 12 12 32 11 24 36 11 48 34 -0.77 99 0 0 11 43 38 11 13 52.9 52 168 2 11 23 13 12 4 8 11 7 54 12 19 39 11 31 39 11 55 39 -0.77 100 0 0 11 51 19 11 14 1.1 52 170 1 11 30 53 12 11 51 11 15 33 12 27 23 11 39 19 12 3 21 -0.77 101 0 0 11 59 38 11 14 9.4 52 171 0 11 39 10 12 20 11 11 23 48 12 35 45 11 47 37 12 11 40 -0.77 102 0 0 12 8 33 11 14 17.7 52 173 -1 11 48 4 12 29 9 11 32 41 12 44 43 11 56 32 12 20 37 -0.77 103 0 0 12 18 6 11 14 26.0 52 175 -2 11 57 35 12 38 44 11 42 10 12 54 20 12 6 3 12 30 11 -0.77 104 0 0 12 28 16 11 14 34.3 52 176 -3 12 7 42 12 48 55 11 52 17 13 4 33 12 16 12 12 40 22 -0.77 105 0 0 12 39 3 11 14 42.6 52 178 -4 12 18 27 12 59 44 12 2 59 13 15 24 12 26 57 12 51 10 -0.77 106 0 0 12 50 26 11 14 50.8 52 179 -5 12 29 48 13 11 10 12 14 19 13 26 51 12 38 19 13 2 35 -0.77 107 0 0 13 2 26 11 14 59.1 52 181 -6 12 41 46 13 23 13 12 26 15 13 38 56 12 50 18 13 14 36 -0.77 108 0 0 13 15 3 11 15 7.4 52 182 -7 12 54 20 13 35 52 12 38 47 13 51 37 13 2 53 13 27 14 -0.77 109 0 0 13 28 16 11 15 15.6 51 184 -8 13 7 30 13 49 7 12 51 55 14 4 54 13 16 4 13 40 29 -0.77 110 0 0 13 42 5 11 15 23.8 51 185 -9 13 21 16 14 2 59 13 5 40 14 18 48 13 29 52 13 54 20 -0.77 111 0 0 13 56 30 11 15 32.0 51 187 -10 13 35 39 14 17 27 13 20 0 14 33 18 13 44 15 14 8 46 -0.77 112 0 0 14 11 31 11 15 40.1 50 188 -11 13 50 36 14 32 31 13 34 55 14 48 25 13 59 14 14 23 49 -0.77 113 0 0 14 27 7 11 15 48.2 50 189 -12 14 6 10 14 48 10 13 50 27 15 4 6 14 14 49 14 39 27 -0.77 114 0 0 14 43 19 11 15 56.3 49 191 -13 14 22 18 15 4 25 14 6 33 15 20 24 14 30 59 14 55 41 -0.77 115 0 0 15 0 6 11 16 4.3 49 192 -14 14 39 2 15 21 15 14 23 14 15 37 16 14 47 44 15 12 30 -0.77 116 0 0 15 17 27 11 16 12.3 48 193 -15 14 56 20 15 38 40 14 40 30 15 54 44 15 5 4 15 29 53 -0.77 117 0 0 15 35 23 11 16 20.2 48 195 -16 15 14 13 15 56 40 14 58 20 16 12 46 15 22 58 15 47 51 -0.77 118 0 0 15 53 54 11 16 28.1 47 196 -17 15 32 40 16 15 14 15 16 44 16 31 23 15 41 26 16 6 24 -0.77 119 0 0 16 12 58 11 16 35.9 47 197 -18 15 51 41 16 34 22 15 35 42 16 50 34 16 0 28 16 25 30 -0.77 120 0 0 16 32 36 11 16 43.6 46 198 -19 16 11 15 16 54 3 15 55 13 17 10 18 16 20 4 16 45 10 -0.77 121 0 0 16 52 47 11 16 51.2 46 199 -20 16 31 22 17 14 18 16 15 18 17 30 35 16 40 12 17 5 23 -0.77 122 0 0 17 13 30 11 16 58.8 45 201 -21 16 52 2 17 35 6 16 35 55 17 51 26 17 0 54 17 26 9 -0.77 123 0 0 17 34 47 11 17 6.3 44 202 -22 17 13 14 17 56 26 16 57 4 18 12 49 17 22 8 17 47 28 -0.77 124 0 0 17 56 35 11 17 13.7 43 203 -23 17 34 58 18 18 18 17 18 45 18 34 44 17 43 53 18 9 18 -0.77 125 0 0 18 18 54 11 17 21.0 43 204 -23 17 57 13 18 40 41 17 40 58 18 57 11 18 6 10 18 31 40 -0.77 126 0 0 18 41 44 11 17 28.3 42 205 -24 18 20 0 19 3 36 18 3 41 19 20 9 18 28 58 18 54 33 -0.77 127 0 0 19 5 5 11 17 35.4 41 206 -25 18 43 16 19 27 1 18 26 55 19 43 37 18 52 17 19 17 56 -0.77 128 0 0 19 28 56 11 17 42.4 40 207 -26 19 7 3 19 50 56 18 50 38 20 7 35 19 16 5 19 41 49 -0.76 129 0 0 19 53 16 11 17 49.3 40 208 -27 19 31 18 20 15 20 19 14 50 20 32 2 19 40 22 20 6 11 -0.76 130 0 0 20 18 4 11 17 56.1 39 208 -28 19 56 3 20 40 13 19 39 32 20 56 59 20 5 8 20 31 3 -0.76 131 0 0 20 43 21 11 18 2.7 38 209 -29 20 21 15 21 5 34 20 4 41 21 22 23 20 30 23 20 56 22 -0.76 132 0 0 21 9 5 11 18 9.3 37 210 -29 20 46 55 21 31 22 20 30 17 21 48 15 20 56 4 21 22 9 -0.76 133 0 0 21 35 16 11 18 15.7 36 211 -30 21 13 1 21 57 38 20 56 20 22 14 34 21 22 12 21 48 22 -0.76 134 0 0 22 1 53 11 18 22.0 35 212 -31 21 39 34 22 24 19 21 22 50 22 41 18 21 48 47 22 15 1 -0.76 135 0 0 22 28 55 11 18 28.1 35 213 -32 22 6 31 22 51 26 21 49 44 23 8 28 22 15 46 22 42 6 -0.76 136 0 0 22 56 22 11 18 34.1 34 213 -33 22 33 54 23 18 57 22 17 3 23 36 3 22 43 10 23 9 35 -0.76 137 0 0 23 24 12 11 18 40.0 33 214 -33 23 1 40 23 46 52 22 44 46 24 4 1 23 10 58 23 37 28 -0.76 138 0 0 23 52 25 11 18 45.7 32 215 -34 23 29 48 24 15 9 23 12 51 24 32 22 23 39 9 24 5 44 -0.76 139 0 0 24 21 0 11 18 51.3 31 216 -35 23 58 19 24 43 49 23 41 19 25 1 6 24 7 41 24 34 22 -0.76 140 0 0 24 49 57 11 18 56.7 30 216 -35 24 27 12 25 12 50 24 10 8 25 30 10 24 36 35 25 3 21 -0.76 141 0 0 25 19 14 11 19 2.0 29 217 -36 24 56 24 25 42 12 24 39 17 25 59 35 25 5 50 25 32 41 -0.76 142 0 0 25 48 50 11 19 7.1 28 218 -37 25 25 56 26 11 52 25 8 46 26 29 19 25 35 23 26 2 20 -0.76 143 0 0 26 18 45 11 19 12.0 27 218 -37 25 55 47 26 41 51 25 38 33 26 59 21 26 5 16 26 32 17 -0.76 144 0 0 26 48 57 11 19 16.8 26 219 -38 26 25 55 27 12 8 26 8 38 27 29 41 26 35 25 27 2 32 -0.76 145 0 0 27 19 26 11 19 21.4 25 220 -38 26 56 19 27 42 41 26 38 59 28 0 17 27 5 51 27 33 3 -0.76 146 0 0 27 50 10 11 19 25.8 24 220 -39 27 26 59 28 13 29 27 9 36 28 31 9 27 36 33 28 3 49 -0.76 147 0 0 28 21 8 11 19 30.0 23 221 -40 27 57 53 28 44 32 27 40 28 29 2 15 28 7 29 28 34 50 -0.76 148 0 0 28 52 20 11 19 34.1 22 221 -40 28 29 1 29 15 48 28 11 33 29 33 34 28 38 39 29 6 5 -0.76 149 0 0 29 23 44 11 19 38.0 21 222 -41 29 0 21 29 47 16 28 42 50 30 5 5 29 10 1 29 37 31 -0.76 150 0 0 29 55 20 11 19 41.7 20 223 -41 29 31 53 30 18 55 29 14 19 30 36 47 29 41 34 30 9 9 -0.76 151 0 0 30 27 5 11 19 45.2 19 223 -41 30 3 35 30 50 44 29 45 58 31 8 39 30 13 17 30 40 57 -0.76 152 0 0 30 59 0 11 19 48.6 18 224 -42 30 35 26 31 22 43 30 17 46 31 40 41 30 45 10 31 12 53 -0.76 153 0 0 31 31 2 11 19 51.8 17 225 -42 31 7 25 31 54 49 30 49 42 32 12 49 31 17 10 31 44 58 -0.76 154 0 0 32 3 11 11 19 54.8 16 225 -42 31 39 30 32 27 1 31 21 45 32 45 5 31 49 17 32 17 9 -0.76 155 0 0 32 35 26 11 19 57.6 15 226 -43 32 11 42 32 59 20 31 53 54 33 17 25 32 21 30 32 49 26 -0.76 156 0 0 33 7 46 11 20 0.2 14 226 -43 32 43 58 33 31 42 32 26 8 33 49 50 32 53 47 33 21 47 -0.76 157 0 0 33 40 8 11 20 2.6 13 227 -43 33 16 18 34 4 8 32 58 25 34 22 18 33 26 8 33 54 11 -0.76 158 0 0 34 12 33 11 20 4.9 12 228 -44 33 48 39 34 36 36 33 30 45 34 54 49 33 58 31 34 26 38 -0.76 159 0 0 34 44 59 11 20 7.0 11 228 -44 34 21 3 35 9 4 34 3 6 35 27 20 34 30 56 34 59 5 -0.77 160 0 0 35 17 25 11 20 8.9 10 229 -44 34 53 26 35 41 33 34 35 28 35 59 50 35 3 20 35 31 33 -0.77 161 0 0 35 49 50 11 20 10.6 9 229 -44 35 25 48 36 14 0 35 7 48 36 32 19 35 35 43 36 3 59 -0.77 162 0 0 36 22 12 11 20 12.1 9 230 -44 35 58 8 36 46 25 35 40 7 37 4 46 36 8 4 36 36 23 -0.77 163 0 0 36 54 31 11 20 13.5 8 231 -44 36 30 25 37 18 46 36 12 22 37 37 9 36 40 22 37 8 43 -0.77 164 0 0 37 26 46 11 20 14.7 7 231 -44 37 2 38 37 51 3 36 44 33 38 9 27 37 12 36 37 40 59 -0.77 165 0 0 37 58 55 11 20 15.7 6 232 -44 37 34 45 38 23 14 37 16 39 38 41 39 37 44 44 38 13 9 -0.78 166 0 0 38 30 57 11 20 16.6 5 232 -44 38 6 46 38 55 18 37 48 39 39 13 44 38 16 45 38 45 12 -0.78 167 0 0 39 2 52 11 20 17.3 4 233 -44 38 38 39 39 27 14 38 20 31 39 45 42 38 48 39 39 17 8 -0.79 168 0 0 39 34 38 11 20 17.8 3 234 -44 39 10 24 39 59 1 38 52 15 40 17 30 39 20 24 39 48 55 -0.80 169 0 0 40 6 14 11 20 18.2 2 234 -44 39 42 0 40 30 39 39 23 50 40 49 9 39 52 0 40 20 32 -0.82 170 0 0 40 37 40 11 20 18.4 1 235 -44 40 13 24 41 2 5 39 55 14 41 20 36 40 23 25 40 51 58 -0.89 171 0 0 41 8 54 11 20 18.5 0 236 -44 40 44 38 .. .. .. 40 26 27 .. .. .. 40 54 39 ... .. .. -4.09 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 324-125937 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 03 14.3820 DE: -25 14 22.170 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 03 14.3819 DE: -25 14 22.170 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.600,0.400) * V mag [mag]: 8.6 * B mag [mag]: 11.4 * Diameter [mas]: 7.40 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (406) Erna asteroid class: approx. diameter [km]: 47 approx. diameter ["]: 0.029 distance from Earth [AU]: 2.27300 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): 0.031", 0.013", 86.171° remarks: * orbital elements for (406)Erna : Mean anomaly = 316.4481097291 deg Arg. of pericenter = 37.9106581644 deg Long. of node = 315.4371432012 deg Inclination = 4.1915147274 deg Eccentricity = 0.1779477307 Semimajor axis = 2.9177583534 AU Perihelion dist = 2.3985498756 AU Mag: H = 10.37, G = 0.15 Epoch of elements : MJD 60569.46818796 TDT (2024 Sep 16.4682) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,4.31,2024,9,16,11.236525,-0.093712,0.602476,7.664999,1.191546,0.005540,0.000069,0.000000,0.000000 106.7473,-25.2399,10.13,2.35,False UCAC4 324-125937,18.05399503,-25.2394917,11.43,8.56,7.01,7.4,4,,18.07943237,-25.2399473,6.74,7.84,0,0,0 406,Erna,15.29,59.252,2.2730,0,0,2.186,4.61,,2.4,0 0,316.3555,2024,9,16,37.9107,315.4371,4.1915,0.17795,2.91776,2.39855,10.36,5.0,0.15 1.377,0.0307,0.0133,86,0.0136,Known errors,0.93,0,-1,-1 20240916_125937,60140.57 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:34 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org