IOTA/IOTA-ES occultation update for (49491) 1999 BW25 / TYC 159-02603-1 event on 2024 Dec 22, 15:56 UT Visible from Summary ------- On 2024 Dec 22 UT, the 11.9290190401794 km diameter asteroid (49491) 1999 BW25 will occult a 10.2 mag star in the constellation Monoceros for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.85 mag to 17.07 mag (the magnitude of the asteroid) for at most 1.110 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: 98 * date and approx. time of event: 2024 Dec 22, 15:48 - 2024 Dec 22, 16:05 * geocentric midpoint of event [JD]: 2460667.16451925 * magnitude of target star: 10.22 * magnitude drop [mag]: 6.85 * estimated maximum duration [s]: 1.110 * Moon: 53 % sunlit, 77° distance * Sun: 161° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.36 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.002", 89°) * approx speed of asteroid's shadow [km/s]: 10.8009 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 159-02603-1 by 49491 1999 BW25 on 2024 Dec 22 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 33 0 0 36 51 5 16 5 28.5 0 81 -17 36 54 52 36 47 18 36 57 34 36 44 36 .... 34 0 0 36 58 46 16 5 28.3 1 82 -18 37 2 32 36 54 59 37 5 15 36 52 17 -0.42 35 0 0 37 6 18 16 5 28.1 2 82 -19 37 10 5 37 2 32 37 12 47 36 59 50 -0.47 36 0 0 37 13 42 16 5 27.7 3 83 -20 37 17 28 37 9 55 37 20 10 37 7 14 -0.50 37 0 0 37 20 57 16 5 27.1 4 83 -20 37 24 44 37 17 11 37 27 26 37 14 29 -0.51 38 0 0 37 28 4 16 5 26.5 4 84 -21 37 31 50 37 24 18 37 34 32 37 21 36 -0.52 39 0 0 37 35 2 16 5 25.7 5 85 -22 37 38 48 37 31 16 37 41 30 37 28 34 -0.53 40 0 0 37 41 51 16 5 24.8 6 85 -23 37 45 37 37 38 5 37 48 19 37 35 23 -0.53 41 0 0 37 48 31 16 5 23.7 7 86 -24 37 52 17 37 44 45 37 54 59 37 42 4 -0.53 42 0 0 37 55 3 16 5 22.5 8 87 -24 37 58 49 37 51 17 38 1 30 37 48 35 -0.54 43 0 0 38 1 25 16 5 21.2 8 87 -25 38 5 11 37 57 39 38 7 53 37 54 58 -0.54 44 0 0 38 7 39 16 5 19.8 9 88 -26 38 11 24 38 3 53 38 14 6 38 1 11 -0.54 45 0 0 38 13 43 16 5 18.3 10 88 -27 38 17 29 38 9 57 38 20 10 38 7 16 -0.54 46 0 0 38 19 38 16 5 16.6 11 89 -28 38 23 24 38 15 53 38 26 5 38 13 12 -0.54 47 0 0 38 25 24 16 5 14.8 11 90 -28 38 29 10 38 21 39 38 31 52 38 18 58 -0.54 48 0 0 38 31 1 16 5 12.9 12 90 -29 38 34 47 38 27 16 38 37 28 38 24 35 -0.54 49 0 0 38 36 29 16 5 10.9 13 91 -30 38 40 15 38 32 44 38 42 56 38 30 3 -0.55 50 0 0 38 41 48 16 5 8.7 14 92 -31 38 45 33 38 38 2 38 48 14 38 35 21 -0.55 51 0 0 38 46 57 16 5 6.4 15 92 -31 38 50 42 38 43 12 38 53 23 38 40 31 -0.55 52 0 0 38 51 56 16 5 4.1 15 93 -32 38 55 42 38 48 11 38 58 23 38 45 30 -0.55 53 0 0 38 56 47 16 5 1.6 16 94 -33 39 0 32 38 53 2 39 3 13 38 50 21 -0.55 54 0 0 39 1 27 16 4 59.0 17 94 -34 39 5 13 38 57 42 39 7 54 38 55 2 -0.55 55 0 0 39 5 59 16 4 56.3 18 95 -35 39 9 44 39 2 14 39 12 25 38 59 33 -0.55 56 0 0 39 10 20 16 4 53.4 18 95 -35 39 14 6 39 6 35 39 16 47 39 3 55 -0.55 57 0 0 39 14 33 16 4 50.5 19 96 -36 39 18 18 39 10 48 39 20 59 39 8 7 -0.55 58 0 0 39 18 35 16 4 47.5 20 97 -37 39 22 20 39 14 51 39 25 1 39 12 10 -0.55 59 0 0 39 22 29 16 4 44.3 21 98 -38 39 26 14 39 18 44 39 28 54 39 16 3 -0.55 60 0 0 39 26 12 16 4 41.1 21 98 -38 39 29 57 39 22 27 39 32 38 39 19 47 -0.55 61 0 0 39 29 46 16 4 37.7 22 99 -39 39 33 31 39 26 1 39 36 12 39 23 21 -0.55 62 0 0 39 33 10 16 4 34.2 23 100 -40 39 36 55 39 29 26 39 39 36 39 26 45 -0.55 63 0 0 39 36 25 16 4 30.7 24 100 -41 39 40 10 39 32 40 39 42 50 39 30 0 -0.55 64 0 0 39 39 30 16 4 27.0 24 101 -41 39 43 14 39 35 45 39 45 55 39 33 5 -0.55 65 0 0 39 42 25 16 4 23.2 25 102 -42 39 46 10 39 38 40 39 48 50 39 36 0 -0.55 66 0 0 39 45 10 16 4 19.4 26 102 -43 39 48 55 39 41 26 39 51 36 39 38 46 -0.55 67 0 0 39 47 46 16 4 15.4 27 103 -44 39 51 31 39 44 2 39 54 11 39 41 21 -0.55 68 0 0 39 50 12 16 4 11.4 27 104 -44 39 53 57 39 46 28 39 56 37 39 43 48 -0.55 69 0 0 39 52 29 16 4 7.2 28 105 -45 39 56 13 39 48 44 39 58 54 39 46 4 -0.56 70 0 0 39 54 35 16 4 3.0 29 105 -46 39 58 20 39 50 51 40 1 0 39 48 11 -0.56 71 0 0 39 56 32 16 3 58.6 29 106 -47 40 0 17 39 52 48 40 2 57 39 50 7 -0.56 72 0 0 39 58 19 16 3 54.2 30 107 -47 40 2 4 39 54 35 40 4 44 39 51 54 -0.56 73 0 0 39 59 56 16 3 49.6 31 108 -48 40 3 41 39 56 12 40 6 21 39 53 32 -0.56 74 0 0 40 1 24 16 3 45.0 32 108 -49 40 5 8 39 57 40 40 7 49 39 54 59 -0.56 75 0 0 40 2 42 16 3 40.3 32 109 -50 40 6 26 39 58 57 40 9 7 39 56 17 -0.56 76 0 0 40 3 50 16 3 35.5 33 110 -50 40 7 34 40 0 6 40 10 15 39 57 25 -0.56 77 0 0 40 4 48 16 3 30.6 34 111 -51 40 8 33 40 1 4 40 11 13 39 58 24 -0.56 78 0 0 40 5 37 16 3 25.7 34 112 -52 40 9 21 40 1 53 40 12 2 39 59 12 -0.56 79 0 0 40 6 16 16 3 20.6 35 113 -53 40 10 0 40 2 32 40 12 41 39 59 51 -0.56 80 0 0 40 6 45 16 3 15.5 36 113 -53 40 10 30 40 3 1 40 13 10 40 0 21 -0.56 81 0 0 40 7 5 16 3 10.2 36 114 -54 40 10 49 40 3 20 40 13 29 40 0 40 -0.56 82 0 0 40 7 14 16 3 4.9 37 115 -55 40 10 59 40 3 30 40 13 39 40 0 50 -0.56 83 0 0 40 7 14 16 2 59.6 38 116 -55 40 10 59 40 3 30 40 13 39 40 0 50 -0.56 84 0 0 40 7 4 16 2 54.1 38 117 -56 40 10 49 40 3 20 40 13 29 40 0 40 -0.56 85 0 0 40 6 45 16 2 48.5 39 118 -57 40 10 30 40 3 1 40 13 10 40 0 20 -0.56 86 0 0 40 6 16 16 2 42.9 40 119 -58 40 10 0 40 2 32 40 12 41 39 59 51 -0.56 87 0 0 40 5 37 16 2 37.2 40 120 -58 40 9 22 40 1 53 40 12 2 39 59 13 -0.56 88 0 0 40 4 49 16 2 31.4 41 121 -59 40 8 33 40 1 4 40 11 14 39 58 24 -0.56 89 0 0 40 3 51 16 2 25.6 42 122 -60 40 7 35 40 0 6 40 10 16 39 57 26 -0.56 90 0 0 40 2 43 16 2 19.6 42 122 -60 40 6 28 39 58 58 40 9 8 39 56 18 -0.56 91 0 0 40 1 26 16 2 13.6 43 123 -61 40 5 10 39 57 41 40 7 51 39 55 1 -0.56 92 0 0 39 59 59 16 2 7.6 44 124 -62 40 3 43 39 56 14 40 6 24 39 53 34 -0.56 93 0 0 39 58 22 16 2 1.4 44 125 -62 40 2 7 39 54 38 40 4 48 39 51 57 -0.56 94 0 0 39 56 36 16 1 55.2 45 127 -63 40 0 21 39 52 52 40 3 2 39 50 11 -0.56 95 0 0 39 54 41 16 1 48.9 45 128 -64 39 58 26 39 50 56 40 1 6 39 48 16 -0.56 96 0 0 39 52 36 16 1 42.6 46 129 -64 39 56 21 39 48 51 39 59 1 39 46 11 -0.56 97 0 0 39 50 21 16 1 36.1 47 130 -65 39 54 6 39 46 37 39 56 47 39 43 56 -0.56 98 0 0 39 47 57 16 1 29.6 47 131 -66 39 51 42 39 44 13 39 54 23 39 41 32 -0.56 99 0 0 39 45 24 16 1 23.1 48 132 -66 39 49 9 39 41 39 39 51 50 39 38 59 -0.56 100 0 0 39 42 41 16 1 16.5 48 133 -67 39 46 26 39 38 57 39 49 7 39 36 16 -0.56 101 0 0 39 39 49 16 1 9.8 49 134 -67 39 43 34 39 36 4 39 46 15 39 33 24 -0.56 102 0 0 39 36 48 16 1 3.0 50 135 -68 39 40 33 39 33 3 39 43 14 39 30 22 -0.56 103 0 0 39 33 37 16 0 56.2 50 137 -69 39 37 22 39 29 52 39 40 3 39 27 12 -0.56 104 0 0 39 30 17 16 0 49.4 51 138 -69 39 34 2 39 26 32 39 36 44 39 23 51 -0.56 105 0 0 39 26 48 16 0 42.4 51 139 -70 39 30 33 39 23 3 39 33 14 39 20 22 -0.56 106 0 0 39 23 10 16 0 35.5 52 140 -70 39 26 55 39 19 25 39 29 36 39 16 44 -0.56 107 0 0 39 19 22 16 0 28.4 52 142 -71 39 23 8 39 15 37 39 25 49 39 12 56 -0.56 108 0 0 39 15 26 16 0 21.3 53 143 -71 39 19 11 39 11 40 39 21 52 39 8 59 -0.56 109 0 0 39 11 20 16 0 14.2 53 145 -72 39 15 5 39 7 34 39 17 47 39 4 54 -0.56 110 0 0 39 7 5 16 0 7.0 54 146 -72 39 10 51 39 3 20 39 13 32 39 0 39 -0.56 111 0 0 39 2 41 15 59 59.7 54 147 -73 39 6 27 38 58 56 39 9 8 38 56 15 -0.56 112 0 0 38 58 9 15 59 52.4 55 149 -73 39 1 54 38 54 23 39 4 36 38 51 42 -0.56 113 0 0 38 53 27 15 59 45.0 55 150 -73 38 57 13 38 49 42 38 59 54 38 47 0 -0.56 114 0 0 38 48 37 15 59 37.6 56 152 -74 38 52 23 38 44 51 38 55 4 38 42 10 -0.56 115 0 0 38 43 38 15 59 30.2 56 153 -74 38 47 24 38 39 52 38 50 5 38 37 11 -0.56 116 0 0 38 38 30 15 59 22.7 56 155 -74 38 42 16 38 34 44 38 44 57 38 32 3 -0.56 117 0 0 38 33 13 15 59 15.1 57 157 -75 38 36 59 38 29 27 38 39 41 38 26 46 -0.56 118 0 0 38 27 48 15 59 7.5 57 158 -75 38 31 34 38 24 2 38 34 16 38 21 21 -0.56 119 0 0 38 22 14 15 58 59.9 58 160 -75 38 26 1 38 18 28 38 28 42 38 15 47 -0.56 120 0 0 38 16 32 15 58 52.2 58 162 -75 38 20 18 38 12 46 38 23 0 38 10 4 -0.57 121 0 0 38 10 41 15 58 44.5 58 163 -75 38 14 28 38 6 55 38 17 10 38 4 14 -0.57 122 0 0 38 4 42 15 58 36.8 59 165 -75 38 8 29 38 0 56 38 11 11 37 58 14 -0.57 123 0 0 37 58 35 15 58 29.0 59 167 -75 38 2 21 37 54 48 38 5 3 37 52 7 -0.57 124 0 0 37 52 19 15 58 21.2 59 169 -75 37 56 6 37 48 33 37 58 48 37 45 51 -0.57 125 0 0 37 45 55 15 58 13.3 59 170 -75 37 49 42 37 42 9 37 52 24 37 39 27 -0.57 126 0 0 37 39 23 15 58 5.4 60 172 -75 37 43 10 37 35 37 37 45 52 37 32 55 -0.57 127 0 0 37 32 43 15 57 57.5 60 174 -75 37 36 30 37 28 57 37 39 12 37 26 15 -0.57 128 0 0 37 25 55 15 57 49.6 60 176 -74 37 29 42 37 22 9 37 32 25 37 19 27 -0.57 129 0 0 37 19 0 15 57 41.6 60 178 -74 37 22 47 37 15 13 37 25 29 37 12 31 -0.57 130 0 0 37 11 56 15 57 33.6 60 180 -74 37 15 43 37 8 9 37 18 25 37 5 27 -0.57 131 0 0 37 4 45 15 57 25.6 60 182 -73 37 8 32 37 0 58 37 11 14 36 58 16 -0.57 132 0 0 36 57 26 15 57 17.5 60 184 -73 37 1 13 36 53 39 37 3 55 36 50 56 -0.57 133 0 0 36 49 59 15 57 9.4 60 186 -73 36 53 46 36 46 12 36 56 29 36 43 30 -0.57 134 0 0 36 42 25 15 57 1.4 61 188 -72 36 46 12 36 38 38 36 48 55 36 35 56 -0.57 135 0 0 36 34 44 15 56 53.2 61 190 -72 36 38 31 36 30 56 36 41 14 36 28 14 -0.57 136 0 0 36 26 55 15 56 45.1 60 192 -71 36 30 43 36 23 8 36 33 25 36 20 25 -0.57 137 0 0 36 18 59 15 56 37.0 60 194 -71 36 22 47 36 15 12 36 25 29 36 12 29 -0.57 138 0 0 36 10 56 15 56 28.8 60 196 -70 36 14 44 36 7 9 36 17 27 36 4 26 -0.57 139 0 0 36 2 46 15 56 20.7 60 198 -70 36 6 34 35 58 59 36 9 17 35 56 16 -0.57 140 0 0 35 54 30 15 56 12.5 60 200 -69 35 58 17 35 50 42 36 1 0 35 47 59 -0.57 141 0 0 35 46 6 15 56 4.3 60 201 -68 35 49 54 35 42 18 35 52 37 35 39 36 -0.57 142 0 0 35 37 36 15 55 56.2 60 203 -68 35 41 24 35 33 48 35 44 7 35 31 6 -0.57 143 0 0 35 28 59 15 55 48.0 60 205 -67 35 32 47 35 25 11 35 35 30 35 22 29 -0.56 144 0 0 35 20 16 15 55 39.8 59 207 -67 35 24 4 35 16 28 35 26 47 35 13 45 -0.56 145 0 0 35 11 26 15 55 31.6 59 209 -66 35 15 14 35 7 38 35 17 58 35 4 56 -0.56 146 0 0 35 2 31 15 55 23.4 59 211 -65 35 6 19 34 58 43 35 9 2 34 56 0 -0.56 147 0 0 34 53 29 15 55 15.3 59 213 -65 34 57 17 34 49 41 35 0 0 34 46 58 -0.56 148 0 0 34 44 21 15 55 7.1 58 214 -64 34 48 9 34 40 33 34 50 52 34 37 50 -0.56 149 0 0 34 35 7 15 54 59.0 58 216 -63 34 38 56 34 31 19 34 41 39 34 28 36 -0.56 150 0 0 34 25 48 15 54 50.8 58 218 -62 34 29 36 34 22 0 34 32 20 34 19 17 -0.56 151 0 0 34 16 23 15 54 42.7 57 220 -62 34 20 11 34 12 35 34 22 55 34 9 52 -0.56 152 0 0 34 6 52 15 54 34.6 57 221 -61 34 10 41 34 3 4 34 13 24 34 0 21 -0.56 153 0 0 33 57 17 15 54 26.5 56 223 -60 34 1 5 33 53 28 34 3 49 33 50 45 -0.56 154 0 0 33 47 36 15 54 18.4 56 224 -59 33 51 24 33 43 47 33 54 8 33 41 4 -0.56 155 0 0 33 37 50 15 54 10.4 56 226 -59 33 41 39 33 34 1 33 44 22 33 31 18 -0.56 156 0 0 33 27 59 15 54 2.4 55 227 -58 33 31 48 33 24 10 33 34 31 33 21 27 -0.56 157 0 0 33 18 3 15 53 54.4 55 229 -57 33 21 52 33 14 15 33 24 36 33 11 32 -0.56 158 0 0 33 8 3 15 53 46.4 54 230 -56 33 11 52 33 4 15 33 14 36 33 1 31 -0.56 159 0 0 32 57 59 15 53 38.5 54 232 -56 33 1 47 32 54 10 33 4 31 32 51 27 -0.56 160 0 0 32 47 50 15 53 30.6 53 233 -55 32 51 38 32 44 1 32 54 22 32 41 18 -0.56 161 0 0 32 37 37 15 53 22.8 53 234 -54 32 41 25 32 33 48 32 44 9 32 31 4 -0.56 162 0 0 32 27 20 15 53 15.0 52 236 -53 32 31 8 32 23 31 32 33 52 32 20 47 -0.56 163 0 0 32 16 59 15 53 7.2 51 237 -52 32 20 48 32 13 10 32 23 31 32 10 27 -0.56 164 0 0 32 6 34 15 52 59.5 51 238 -52 32 10 23 32 2 45 32 13 7 32 0 2 -0.56 165 0 0 31 56 6 15 52 51.8 50 239 -51 31 59 55 31 52 17 32 2 39 31 49 34 -0.56 166 0 0 31 45 35 15 52 44.2 50 241 -50 31 49 24 31 41 46 31 52 8 31 39 3 -0.56 167 0 0 31 35 0 15 52 36.7 49 242 -49 31 38 49 31 31 12 31 41 33 31 28 28 -0.56 168 0 0 31 24 23 15 52 29.2 48 243 -48 31 28 12 31 20 34 31 30 56 31 17 51 -0.56 169 0 0 31 13 43 15 52 21.7 48 244 -47 31 17 32 31 9 54 31 20 16 31 7 10 -0.56 170 0 0 31 3 0 15 52 14.3 47 245 -47 31 6 49 30 59 11 31 9 33 30 56 28 -0.56 171 0 0 30 52 15 15 52 7.0 46 246 -46 30 56 4 30 48 26 30 58 47 30 45 42 -0.56 172 0 0 30 41 27 15 51 59.8 46 247 -45 30 45 16 30 37 38 30 48 0 30 34 55 -0.56 173 0 0 30 30 38 15 51 52.6 45 248 -44 30 34 27 30 26 49 30 37 10 30 24 5 -0.56 174 0 0 30 19 46 15 51 45.5 44 249 -43 30 23 35 30 15 57 30 26 19 30 13 14 -0.56 175 0 0 30 8 53 15 51 38.4 43 250 -42 30 12 42 30 5 4 30 15 26 30 2 20 -0.56 176 0 0 29 57 58 15 51 31.5 43 251 -42 30 1 47 29 54 9 30 4 31 29 51 26 -0.56 177 0 0 29 47 2 15 51 24.6 42 252 -41 29 50 51 29 43 13 29 53 35 29 40 30 -0.56 178 0 0 29 36 5 15 51 17.8 41 253 -40 29 39 54 29 32 16 29 42 38 29 29 33 -0.56 179 0 0 29 25 7 15 51 11.1 40 253 -39 29 28 56 29 21 18 29 31 40 29 18 35 -0.56 180 0 0 29 14 8 15 51 4.5 40 254 -38 29 17 57 29 10 19 29 20 41 29 7 36 -0.56 -179 0 0 29 3 9 15 50 58.0 39 255 -37 29 6 58 28 59 20 29 9 42 28 56 37 -0.56 -178 0 0 28 52 9 15 50 51.6 38 256 -36 28 55 58 28 48 21 28 58 42 28 45 37 -0.56 -177 0 0 28 41 10 15 50 45.3 37 257 -36 28 44 59 28 37 21 28 47 42 28 34 37 -0.56 -176 0 0 28 30 10 15 50 39.0 37 257 -35 28 33 59 28 26 21 28 36 43 28 23 38 -0.56 -175 0 0 28 19 11 15 50 32.9 36 258 -34 28 23 0 28 15 22 28 25 43 28 12 39 -0.56 -174 0 0 28 8 12 15 50 26.9 35 259 -33 28 12 1 28 4 23 28 14 44 28 1 40 -0.56 -173 0 0 27 57 14 15 50 21.0 34 259 -32 28 1 2 27 53 25 28 3 46 27 50 42 -0.56 -172 0 0 27 46 16 15 50 15.2 33 260 -31 27 50 5 27 42 28 27 52 49 27 39 44 -0.56 -171 0 0 27 35 20 15 50 9.5 32 261 -30 27 39 9 27 31 32 27 41 53 27 28 48 -0.56 -170 0 0 27 24 25 15 50 3.9 32 261 -29 27 28 14 27 20 37 27 30 58 27 17 54 -0.56 -169 0 0 27 13 32 15 49 58.5 31 262 -28 27 17 21 27 9 44 27 20 4 27 7 0 -0.56 -168 0 0 27 2 41 15 49 53.2 30 263 -28 27 6 29 26 58 52 27 9 13 26 56 9 -0.57 -167 0 0 26 51 51 15 49 47.9 29 263 -27 26 55 40 26 48 3 26 58 23 26 45 19 -0.57 -166 0 0 26 41 4 15 49 42.9 28 264 -26 26 44 52 26 37 15 26 47 36 26 34 32 -0.57 -165 0 0 26 30 19 15 49 37.9 27 264 -25 26 34 7 26 26 30 26 36 51 26 23 47 -0.57 -164 0 0 26 19 36 15 49 33.1 27 265 -24 26 23 25 26 15 48 26 26 8 26 13 5 -0.57 -163 0 0 26 8 57 15 49 28.4 26 266 -23 26 12 45 26 5 9 26 15 28 26 2 25 -0.57 -162 0 0 25 58 20 15 49 23.9 25 266 -22 26 2 9 25 54 32 26 4 52 25 51 49 -0.57 -161 0 0 25 47 47 15 49 19.5 24 267 -21 25 51 35 25 43 59 25 54 18 25 41 16 -0.57 -160 0 0 25 37 17 15 49 15.2 23 267 -20 25 41 5 25 33 29 25 43 49 25 30 46 -0.57 -159 0 0 25 26 51 15 49 11.1 22 268 -20 25 30 39 25 23 3 25 33 22 25 20 20 -0.57 -158 0 0 25 16 29 15 49 7.1 21 268 -19 25 20 17 25 12 41 25 23 0 25 9 58 -0.57 -157 0 0 25 6 11 15 49 3.3 20 269 -18 25 9 59 25 2 23 25 12 42 24 59 40 -0.57 -156 0 0 24 55 57 15 48 59.6 20 269 -17 24 59 45 24 52 9 25 2 28 24 49 27 -0.57 -155 0 0 24 45 48 15 48 56.0 19 270 -16 24 49 36 24 42 0 24 52 19 24 39 17 -0.57 -154 0 0 24 35 43 15 48 52.7 18 270 -15 24 39 31 24 31 56 24 42 14 24 29 13 -0.57 -153 0 0 24 25 44 15 48 49.4 17 271 -14 24 29 32 24 21 56 24 32 15 24 19 14 -0.57 -152 0 0 24 15 50 15 48 46.4 16 271 -13 24 19 37 24 12 2 24 22 20 24 9 20 -0.57 -151 0 0 24 6 1 15 48 43.5 15 271 -12 24 9 48 24 2 13 24 12 31 23 59 31 -0.58 -150 0 0 23 56 17 15 48 40.7 14 272 -11 24 0 5 23 52 30 24 2 48 23 49 48 -0.58 -149 0 0 23 46 40 15 48 38.1 13 272 -11 23 50 27 23 42 53 23 53 10 23 40 10 -0.58 -148 0 0 23 37 8 15 48 35.7 12 273 -10 23 40 56 23 33 21 23 43 38 23 30 39 -0.58 -147 0 0 23 27 43 15 48 33.5 11 273 -9 23 31 31 23 23 56 23 34 13 23 21 14 -0.58 -146 0 0 23 18 24 15 48 31.4 11 274 -8 23 22 12 23 14 37 23 24 54 23 11 55 -0.59 -145 0 0 23 9 12 15 48 29.5 10 274 -7 23 12 59 23 5 25 23 15 42 23 2 43 -0.59 -144 0 0 23 0 7 15 48 27.7 9 274 -6 23 3 54 22 56 20 23 6 36 22 53 38 -0.59 -143 0 0 22 51 9 15 48 26.2 8 275 -5 22 54 56 22 47 22 22 57 38 22 44 40 -0.60 -142 0 0 22 42 17 15 48 24.8 7 275 -4 22 46 4 22 38 31 22 48 47 22 35 49 -0.60 -141 0 0 22 33 34 15 48 23.6 6 276 -3 22 37 21 22 29 47 22 40 3 22 27 5 -0.61 -140 0 0 22 24 58 15 48 22.5 5 276 -2 22 28 45 22 21 11 22 31 27 22 18 29 -0.62 -139 0 0 22 16 30 15 48 21.6 4 276 -2 22 20 16 22 12 43 22 22 59 22 10 1 -0.64 -138 0 0 22 8 10 15 48 21.0 3 277 -1 22 11 56 22 4 23 22 14 38 22 1 41 -0.66 -137 0 0 21 59 58 15 48 20.4 2 277 0 22 3 44 21 56 11 22 6 26 21 53 29 -0.71 -136 0 0 21 51 54 15 48 20.1 1 277 1 21 55 41 21 48 8 21 58 23 21 45 26 -0.82 -135 0 0 21 43 59 15 48 20.0 0 278 2 21 47 46 21 40 13 21 50 28 21 37 31 -1.70 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.8 Data for the target star ------------------------ * name: TYC 159-02603-1 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 43 14.4594 DE: +07 22 31.941 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 43 14.4594 DE: +07 22 31.941 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.300) * V mag [mag]: 10.2 * B mag [mag]: 11.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (49491) 1999 BW25 asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.011 distance from Earth [AU]: 1.53020 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#44 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): 0.023", 0.002", 88.661° remarks: * orbital elements for (49491)1999 BW25 : Mean anomaly = 55.9594775272 deg Arg. of pericenter = 218.3575365362 deg Long. of node = 164.7849131023 deg Inclination = 10.3268521331 deg Eccentricity = 0.1668464228 Semimajor axis = 2.6737919401 AU Perihelion dist = 2.2276793196 AU Mag: H = 13.64, G = 0.15 Epoch of elements : MJD 60666.66452100 TDT (2024 Dec 22.6645) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#442023Apr25,1.11,2024,12,22,15.948462,0.064765,0.485530,-6.042816,0.805896,-0.000935,0.001628,0.000001,0.000000 130.2287,7.3512,-59.50,-23.43,False TYC 159-02603-1,6.72068316,7.3755393,11.12,10.22,9.73,0.1,0,,6.74357021,7.3512397,6.85,6.89,0,0,0 49491,1999 BW25,17.07,12.040,1.5302,0,0,-2.334,4.64,,1.0,0 0,55.8097,2024,12,22,218.3575,164.7849,10.3269,0.16685,2.67379,2.22768,13.64,5.0,0.15 1.357,0.0227,0.0017,89,0.0039,Known errors,1.47,0,-1,-1 20241222_2603-1,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 18:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org