IOTA/IOTA-ES occultation update for (850) Altona / UCAC4 515-033935 event on 2023 Nov 28, 09:04 UT Visible from Canada Summary ------- On 2023 Nov 28 UT, the 76.2 km diameter asteroid (850) Altona will occult a 12.0 mag star in the constellation Gemini for observers along a path across Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.17 mag to 15.08 mag (the magnitude of the asteroid) for at most 8.020 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: 100 * date and approx. time of event: 2023 Nov 28, 08:56 - 2023 Nov 28, 09:13 * geocentric midpoint of event [JD]: 2460276.87841000 * magnitude of target star: 11.97 * magnitude drop [mag]: 3.17 * estimated maximum duration [s]: 8.020 * Moon: 99 % sunlit, 30° distance * Sun: 141° distance * rough path description: Canada The occultation path -------------------- * approximate projected width [km]: 105 * 1 sigma uncertainty interval [path widths]: +/- 0.09 * 1 sigma uncertainty interval [seconds]: +/- 1.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.001", 80°) * approx speed of asteroid's shadow [km/s]: 9.4972 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 515-033935 by 850 Altona on 2023 Nov 28 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 152 0 0 52 38 5 9 13 2.0 0 69 -31 53 8 24 52 8 1 53 14 3 52 2 29 .... 153 0 0 52 52 15 9 13 1.9 1 70 -31 53 22 32 52 22 14 53 28 11 52 16 42 -0.79 154 0 0 53 6 13 9 13 1.6 2 71 -32 53 36 28 52 36 14 53 42 6 52 30 42 -0.84 155 0 0 53 19 57 9 13 1.2 2 72 -32 53 50 10 52 50 1 53 55 48 52 44 29 -0.87 156 0 0 53 33 29 9 13 0.8 3 72 -33 54 3 39 53 3 34 54 9 16 52 58 3 -0.88 157 0 0 53 46 47 9 13 0.1 4 73 -34 54 16 55 53 16 55 54 22 31 53 11 24 -0.89 158 0 0 53 59 51 9 12 59.4 4 74 -34 54 29 57 53 30 2 54 35 33 53 24 32 -0.89 159 0 0 54 12 43 9 12 58.6 5 75 -35 54 42 46 53 42 56 54 48 22 53 37 26 -0.90 160 0 0 54 25 21 9 12 57.7 6 76 -35 54 55 22 53 55 36 55 0 57 53 50 7 -0.90 161 0 0 54 37 46 9 12 56.7 6 76 -36 55 7 44 54 8 4 55 13 19 54 2 35 -0.91 162 0 0 54 49 57 9 12 55.6 7 77 -36 55 19 53 54 20 17 55 25 28 54 14 49 -0.91 163 0 0 55 1 55 9 12 54.4 7 78 -37 55 31 48 54 32 18 55 37 22 54 26 50 -0.91 164 0 0 55 13 40 9 12 53.1 8 79 -37 55 43 30 54 44 4 55 49 4 54 38 37 -0.91 165 0 0 55 25 10 9 12 51.7 9 80 -38 55 54 58 54 55 37 56 0 31 54 50 10 -0.91 166 0 0 55 36 27 9 12 50.2 9 80 -38 56 6 12 55 6 57 56 11 45 55 1 30 -0.92 167 0 0 55 47 30 9 12 48.6 10 81 -39 56 17 13 55 18 2 56 22 46 55 12 36 -0.92 168 0 0 55 58 20 9 12 47.0 10 82 -39 56 28 1 55 28 55 56 33 32 55 23 29 -0.92 169 0 0 56 8 57 9 12 45.3 11 83 -40 56 38 35 55 39 34 56 44 6 55 34 9 -0.92 170 0 0 56 19 19 9 12 43.4 11 84 -40 56 48 55 55 49 59 56 54 25 55 44 34 -0.92 171 0 0 56 29 29 9 12 41.5 12 85 -40 56 59 1 56 0 11 57 4 32 55 54 46 -0.92 172 0 0 56 39 24 9 12 39.6 13 86 -41 57 8 55 56 10 9 57 14 24 56 4 45 -0.92 173 0 0 56 49 6 9 12 37.5 13 86 -41 57 18 34 56 19 53 57 24 4 56 14 30 -0.92 174 0 0 56 58 35 9 12 35.4 14 87 -42 57 28 0 56 29 24 57 33 29 56 24 1 -0.92 175 0 0 57 7 50 9 12 33.2 14 88 -42 57 37 13 56 38 42 57 42 41 56 33 19 -0.92 176 0 0 57 16 52 9 12 31.0 15 89 -42 57 46 12 56 47 46 57 51 40 56 42 24 -0.92 177 0 0 57 25 40 9 12 28.6 15 90 -43 57 54 58 56 56 36 58 0 26 56 51 15 -0.93 178 0 0 57 34 15 9 12 26.3 16 91 -43 58 3 31 57 5 13 58 8 58 56 59 52 -0.93 179 0 0 57 42 36 9 12 23.8 16 92 -44 58 11 50 57 13 37 58 17 16 57 8 17 -0.93 -180 0 0 57 50 44 9 12 21.3 17 92 -44 58 19 56 57 21 48 58 25 22 57 16 27 -0.93 -179 0 0 57 58 39 9 12 18.7 17 93 -44 58 27 48 57 29 45 58 33 14 57 24 25 -0.93 -178 0 0 58 6 21 9 12 16.0 18 94 -45 58 35 28 57 37 29 58 40 53 57 32 9 -0.93 -177 0 0 58 13 50 9 12 13.3 18 95 -45 58 42 54 57 44 59 58 48 19 57 39 40 -0.93 -176 0 0 58 21 5 9 12 10.6 19 96 -45 58 50 7 57 52 17 58 55 31 57 46 58 -0.93 -175 0 0 58 28 7 9 12 7.7 19 97 -46 58 57 7 57 59 21 59 2 31 57 54 3 -0.93 -174 0 0 58 34 56 9 12 4.9 20 98 -46 59 3 54 58 6 12 59 9 18 58 0 54 -0.93 -173 0 0 58 41 32 9 12 1.9 20 99 -46 59 10 28 58 12 50 59 15 52 58 7 33 -0.93 -172 0 0 58 47 55 9 11 58.9 21 100 -46 59 16 50 58 19 15 59 22 12 58 13 58 -0.93 -171 0 0 58 54 6 9 11 55.9 21 101 -47 59 22 58 58 25 28 59 28 20 58 20 11 -0.93 -170 0 0 59 0 3 9 11 52.8 22 101 -47 59 28 53 58 31 27 59 34 16 58 26 10 -0.93 -169 0 0 59 5 48 9 11 49.7 22 102 -47 59 34 36 58 37 13 59 39 58 58 31 57 -0.93 -168 0 0 59 11 19 9 11 46.5 23 103 -47 59 40 6 58 42 47 59 45 28 58 37 31 -0.93 -167 0 0 59 16 38 9 11 43.2 23 104 -48 59 45 23 58 48 7 59 50 45 58 42 52 -0.93 -166 0 0 59 21 45 9 11 39.9 24 105 -48 59 50 28 58 53 15 59 55 49 58 48 0 -0.93 -165 0 0 59 26 38 9 11 36.6 24 106 -48 59 55 20 58 58 10 60 0 41 58 52 55 -0.93 -164 0 0 59 31 20 9 11 33.2 25 107 -48 60 0 0 59 2 53 60 5 20 58 57 38 -0.93 -163 0 0 59 35 48 9 11 29.7 25 108 -49 60 4 27 59 7 23 60 9 47 59 2 8 -0.93 -162 0 0 59 40 4 9 11 26.2 26 109 -49 60 8 41 59 11 40 60 14 1 59 6 26 -0.93 -161 0 0 59 44 7 9 11 22.7 26 110 -49 60 12 44 59 15 45 60 18 3 59 10 31 -0.94 -160 0 0 59 47 58 9 11 19.1 26 111 -49 60 16 33 59 19 37 60 21 53 59 14 23 -0.94 -159 0 0 59 51 37 9 11 15.5 27 112 -49 60 20 11 59 23 17 60 25 30 59 18 3 -0.94 -158 0 1 59 55 3 9 11 11.8 27 113 -49 60 23 36 59 26 44 60 28 55 59 21 31 -0.94 -157 0 1 59 58 17 9 11 8.1 28 114 -50 60 26 49 59 29 59 60 32 7 59 24 46 -0.94 -156 0 1 60 1 19 9 11 4.3 28 115 -50 60 29 49 59 33 2 60 35 8 59 27 49 -0.94 -155 0 1 60 4 8 9 11 0.5 29 116 -50 60 32 38 59 35 52 60 37 56 59 30 39 -0.94 -154 0 1 60 6 45 9 10 56.7 29 117 -50 60 35 14 59 38 30 60 40 32 59 33 17 -0.94 -153 0 1 60 9 10 9 10 52.8 29 118 -50 60 37 38 59 40 56 60 42 56 59 35 43 -0.94 -152 0 1 60 11 23 9 10 48.9 30 119 -50 60 39 50 59 43 9 60 45 8 59 37 57 -0.94 -151 0 1 60 13 24 9 10 44.9 30 120 -50 60 41 50 59 45 10 60 47 8 59 39 58 -0.94 -150 0 1 60 15 12 9 10 40.9 31 121 -50 60 43 38 59 46 59 60 48 56 59 41 47 -0.94 -149 0 1 60 16 48 9 10 36.8 31 122 -51 60 45 14 59 48 36 60 50 32 59 43 24 -0.94 -148 0 1 60 18 13 9 10 32.7 31 123 -51 60 46 38 59 50 1 60 51 55 59 44 49 -0.94 -147 0 1 60 19 25 9 10 28.6 32 124 -51 60 47 50 59 51 13 60 53 7 59 46 1 -0.94 -146 0 1 60 20 25 9 10 24.4 32 125 -51 60 48 50 59 52 14 60 54 7 59 47 2 -0.94 -145 0 1 60 21 13 9 10 20.2 33 126 -51 60 49 37 59 53 2 60 54 55 59 47 50 -0.94 -144 0 1 60 21 49 9 10 15.9 33 127 -51 60 50 13 59 53 38 60 55 31 59 48 26 -0.94 -143 0 1 60 22 13 9 10 11.6 33 128 -51 60 50 37 59 54 2 60 55 55 59 48 50 -0.94 -142 0 1 60 22 25 9 10 7.2 34 129 -51 60 50 50 59 54 14 60 56 7 59 49 2 -0.94 -141 0 1 60 22 25 9 10 2.8 34 130 -51 60 50 50 59 54 14 60 56 7 59 49 2 -0.94 -140 0 1 60 22 14 9 9 58.4 35 131 -51 60 50 38 59 54 2 60 55 55 59 48 50 -0.94 -139 0 1 60 21 50 9 9 53.9 35 132 -51 60 50 15 59 53 38 60 55 32 59 48 26 -0.94 -138 0 1 60 21 14 9 9 49.4 35 133 -51 60 49 39 59 53 2 60 54 57 59 47 50 -0.94 -137 0 1 60 20 26 9 9 44.8 36 134 -51 60 48 52 59 52 14 60 54 9 59 47 1 -0.94 -136 0 1 60 19 26 9 9 40.2 36 136 -51 60 47 53 59 51 13 60 53 10 59 46 1 -0.94 -135 0 1 60 18 15 9 9 35.6 36 137 -51 60 46 41 59 50 1 60 51 59 59 44 49 -0.94 -134 0 1 60 16 51 9 9 30.9 37 138 -51 60 45 18 59 48 37 60 50 36 59 43 24 -0.94 -133 0 1 60 15 15 9 9 26.2 37 139 -51 60 43 43 59 47 0 60 49 1 59 41 48 -0.94 -132 0 1 60 13 28 9 9 21.4 37 140 -51 60 41 56 59 45 12 60 47 15 59 39 59 -0.94 -131 0 1 60 11 28 9 9 16.6 38 141 -51 60 39 57 59 43 11 60 45 16 59 37 58 -0.94 -130 0 1 60 9 16 9 9 11.7 38 142 -50 60 37 47 59 40 59 60 43 5 59 35 46 -0.94 -129 0 1 60 6 52 9 9 6.8 38 143 -50 60 35 24 59 38 34 60 40 43 59 33 21 -0.94 -128 0 1 60 4 17 9 9 1.9 39 145 -50 60 32 49 59 35 57 60 38 8 59 30 44 -0.94 -127 0 1 60 1 29 9 8 56.9 39 146 -50 60 30 2 59 33 8 60 35 22 59 27 55 -0.95 -126 0 1 59 58 29 9 8 51.9 39 147 -50 60 27 4 59 30 7 60 32 23 59 24 53 -0.95 -125 0 1 59 55 17 9 8 46.8 40 148 -50 60 23 53 59 26 54 60 29 12 59 21 40 -0.95 -124 0 1 59 51 53 9 8 41.7 40 149 -50 60 20 30 59 23 28 60 25 50 59 18 14 -0.95 -123 0 1 59 48 16 9 8 36.5 40 150 -50 60 16 55 59 19 51 60 22 15 59 14 36 -0.95 -122 0 1 59 44 28 9 8 31.3 41 152 -49 60 13 8 59 16 1 60 18 29 59 10 46 -0.95 -121 0 1 59 40 27 9 8 26.0 41 153 -49 60 9 9 59 11 59 60 14 30 59 6 44 -0.95 -120 0 1 59 36 14 9 8 20.7 41 154 -49 60 4 58 59 7 45 60 10 19 59 2 29 -0.95 -119 0 1 59 31 49 9 8 15.4 41 155 -49 60 0 35 59 3 18 60 5 56 58 58 2 -0.95 -118 0 0 59 27 12 9 8 10.0 42 156 -49 59 55 59 58 58 39 60 1 20 58 53 23 -0.95 -117 0 0 59 22 23 9 8 4.6 42 158 -48 59 51 11 58 53 48 59 56 33 58 48 31 -0.95 -116 0 0 59 17 21 9 7 59.1 42 159 -48 59 46 11 58 48 44 59 51 33 58 43 27 -0.95 -115 0 0 59 12 6 9 7 53.6 42 160 -48 59 40 59 58 43 28 59 46 21 58 38 11 -0.95 -114 0 0 59 6 40 9 7 48.0 43 161 -48 59 35 34 58 38 0 59 40 57 58 32 42 -0.95 -113 0 0 59 1 1 9 7 42.4 43 163 -48 59 29 57 58 32 19 59 35 20 58 27 1 -0.95 -112 0 0 58 55 10 9 7 36.7 43 164 -47 59 24 8 58 26 26 59 29 31 58 21 8 -0.95 -111 0 0 58 49 6 9 7 31.0 43 165 -47 59 18 6 58 20 20 59 23 30 58 15 2 -0.95 -110 0 0 58 42 50 9 7 25.2 44 166 -47 59 11 52 58 14 2 59 17 16 58 8 43 -0.95 -109 0 0 58 36 21 9 7 19.4 44 168 -47 59 5 25 58 7 31 59 10 50 58 2 12 -0.95 -108 0 0 58 29 40 9 7 13.6 44 169 -46 58 58 46 58 0 47 59 4 11 57 55 28 -0.95 -107 0 0 58 22 46 9 7 7.7 44 170 -46 58 51 54 57 53 52 58 57 20 57 48 32 -0.95 -106 0 0 58 15 40 9 7 1.7 44 172 -46 58 44 50 57 46 43 58 50 16 57 41 23 -0.95 -105 0 0 58 8 21 9 6 55.7 45 173 -45 58 37 34 57 39 22 58 43 0 57 34 1 -0.95 -104 0 0 58 0 49 9 6 49.7 45 174 -45 58 30 4 57 31 48 58 35 31 57 26 27 -0.95 -103 0 0 57 53 5 9 6 43.6 45 176 -45 58 22 22 57 24 2 58 27 50 57 18 40 -0.95 -102 0 0 57 45 8 9 6 37.4 45 177 -44 58 14 28 57 16 2 58 19 56 57 10 41 -0.95 -101 0 0 57 36 58 9 6 31.3 45 178 -44 58 6 21 57 7 51 58 11 49 57 2 28 -0.95 -100 0 0 57 28 36 9 6 25.0 45 180 -44 57 58 1 56 59 26 58 3 30 56 54 3 -0.95 - 99 0 0 57 20 1 9 6 18.7 46 181 -43 57 49 28 56 50 49 57 54 58 56 45 26 -0.95 - 98 0 0 57 11 14 9 6 12.4 46 182 -43 57 40 43 56 41 59 57 46 13 56 36 35 -0.95 - 97 0 0 57 2 14 9 6 6.0 46 184 -43 57 31 45 56 32 56 57 37 15 56 27 32 -0.95 - 96 0 0 56 53 0 9 5 59.6 46 185 -42 57 22 35 56 23 41 57 28 5 56 18 17 -0.95 - 95 0 0 56 43 35 9 5 53.1 46 187 -42 57 13 11 56 14 13 57 18 42 56 8 48 -0.95 - 94 0 0 56 33 56 9 5 46.6 46 188 -41 57 3 35 56 4 32 57 9 7 55 59 7 -0.95 - 93 0 0 56 24 5 9 5 40.1 46 189 -41 56 53 47 55 54 39 56 59 19 55 49 13 -0.95 - 92 0 0 56 14 1 9 5 33.5 46 191 -41 56 43 45 55 44 32 56 49 18 55 39 6 -0.95 - 91 0 0 56 3 45 9 5 26.8 46 192 -40 56 33 31 55 34 13 56 39 4 55 28 47 -0.95 - 90 0 0 55 53 15 9 5 20.1 46 194 -40 56 23 4 55 23 42 56 28 37 55 18 15 -0.95 - 89 0 0 55 42 33 9 5 13.4 46 195 -39 56 12 25 55 12 57 56 17 58 55 7 30 -0.95 - 88 0 0 55 31 39 9 5 6.6 47 196 -39 56 1 32 55 2 1 56 7 6 54 56 33 -0.95 - 87 0 0 55 20 32 9 4 59.7 47 198 -38 55 50 28 54 50 51 55 56 2 54 45 23 -0.95 - 86 0 0 55 9 12 9 4 52.9 47 199 -38 55 39 10 54 39 29 55 44 45 54 34 0 -0.95 - 85 0 0 54 57 39 9 4 46.0 47 201 -38 55 27 40 54 27 54 55 33 15 54 22 25 -0.95 - 84 0 0 54 45 55 9 4 39.0 46 202 -37 55 15 57 54 16 7 55 21 33 54 10 38 -0.95 - 83 0 0 54 33 57 9 4 32.0 46 203 -37 55 4 2 54 4 8 55 9 39 53 58 38 -0.95 - 82 0 0 54 21 48 9 4 25.0 46 205 -36 54 51 55 53 51 56 54 57 32 53 46 26 -0.95 - 81 0 0 54 9 25 9 4 17.9 46 206 -36 54 39 35 53 39 32 54 45 12 53 34 1 -0.95 - 80 0 0 53 56 51 9 4 10.8 46 208 -35 54 27 3 53 26 55 54 32 40 53 21 24 -0.95 - 79 0 0 53 44 5 9 4 3.7 46 209 -35 54 14 19 53 14 7 54 19 56 53 8 35 -0.95 - 78 0 0 53 31 6 9 3 56.5 46 211 -34 54 1 22 53 1 6 54 7 0 52 55 34 -0.95 - 77 0 0 53 17 56 9 3 49.3 46 212 -33 53 48 13 52 47 54 53 53 52 52 42 22 -0.95 - 76 0 0 53 4 33 9 3 42.1 46 213 -33 53 34 53 52 34 29 53 40 32 52 28 57 -0.95 - 75 0 0 52 50 59 9 3 34.8 46 215 -32 53 21 20 52 20 53 53 27 0 52 15 20 -0.95 - 74 0 0 52 37 12 9 3 27.5 46 216 -32 53 7 36 52 7 5 53 13 16 52 1 32 -0.95 - 73 0 0 52 23 15 9 3 20.2 45 218 -31 52 53 40 51 53 6 52 59 20 51 47 32 -0.95 - 72 0 0 52 9 6 9 3 12.8 45 219 -31 52 39 33 51 38 55 52 45 13 51 33 21 -0.95 - 71 0 0 51 54 45 9 3 5.5 45 220 -30 52 25 14 51 24 33 52 30 55 51 18 58 -0.95 - 70 0 0 51 40 13 9 2 58.1 45 222 -30 52 10 44 51 9 59 52 16 25 51 4 25 -0.95 - 69 0 0 51 25 31 9 2 50.7 45 223 -29 51 56 3 50 55 15 52 1 44 50 49 40 -0.95 - 68 0 0 51 10 37 9 2 43.3 44 224 -28 51 41 10 50 40 20 51 46 52 50 34 45 -0.95 - 67 0 0 50 55 33 9 2 35.8 44 226 -28 51 26 7 50 25 14 51 31 49 50 19 39 -0.95 - 66 0 0 50 40 18 9 2 28.4 44 227 -27 51 10 54 50 9 58 51 16 36 50 4 23 -0.95 - 65 0 0 50 24 53 9 2 20.9 44 228 -26 50 55 30 49 54 32 51 1 12 49 48 56 -0.94 - 64 0 0 50 9 17 9 2 13.4 43 230 -26 50 39 56 49 38 55 50 45 38 49 33 19 -0.94 - 63 0 0 49 53 32 9 2 6.0 43 231 -25 50 24 11 49 23 9 50 29 54 49 17 33 -0.94 - 62 0 0 49 37 37 9 1 58.5 43 232 -25 50 8 17 49 7 13 50 14 0 49 1 37 -0.94 - 61 0 0 49 21 32 9 1 51.0 42 234 -24 49 52 14 48 51 7 49 57 57 48 45 31 -0.94 - 60 0 0 49 5 18 9 1 43.6 42 235 -23 49 36 0 48 34 52 49 41 44 48 29 16 -0.94 - 59 0 0 48 48 55 9 1 36.1 42 236 -23 49 19 38 48 18 28 49 25 21 48 12 52 -0.94 - 58 0 0 48 32 23 9 1 28.7 41 237 -22 49 3 7 48 1 56 49 8 50 47 56 19 -0.94 - 57 0 0 48 15 42 9 1 21.2 41 239 -21 48 46 27 47 45 15 48 52 10 47 39 38 -0.94 - 56 0 0 47 58 54 9 1 13.8 40 240 -21 48 29 39 47 28 26 48 35 22 47 22 49 -0.94 - 55 0 0 47 41 57 9 1 6.4 40 241 -20 48 12 42 47 11 29 48 18 26 47 5 51 -0.94 - 54 0 0 47 24 52 9 0 59.1 39 242 -19 47 55 38 46 54 24 48 1 22 46 48 47 -0.94 - 53 0 0 47 7 41 9 0 51.7 39 243 -18 47 38 26 46 37 12 47 44 10 46 31 34 -0.94 - 52 0 0 46 50 21 9 0 44.4 39 245 -18 47 21 7 46 19 52 47 26 51 46 14 15 -0.94 - 51 0 0 46 32 55 9 0 37.1 38 246 -17 47 3 41 46 2 26 47 9 25 45 56 49 -0.94 - 50 0 0 46 15 23 9 0 29.9 38 247 -16 46 46 9 45 44 54 46 51 53 45 39 17 -0.94 - 49 0 0 45 57 44 9 0 22.7 37 248 -16 46 28 30 45 27 15 46 34 14 45 21 38 -0.94 - 48 0 0 45 40 0 9 0 15.5 37 249 -15 46 10 45 45 9 31 46 16 29 45 3 54 -0.94 - 47 0 0 45 22 10 9 0 8.4 36 250 -14 45 52 55 44 51 42 45 58 39 44 46 5 -0.94 - 46 0 0 45 4 15 9 0 1.4 35 251 -13 45 35 0 44 33 47 45 40 43 44 28 10 -0.94 - 45 0 0 44 46 15 8 59 54.4 35 252 -13 45 16 59 44 15 47 45 22 43 44 10 11 -0.94 - 44 0 0 44 28 11 8 59 47.4 34 253 -12 44 58 54 43 57 44 45 4 38 43 52 7 -0.94 - 43 0 0 44 10 2 8 59 40.6 34 254 -11 44 40 45 43 39 36 44 46 28 43 33 59 -0.94 - 42 0 0 43 51 50 8 59 33.8 33 255 -10 44 22 32 43 21 24 44 28 15 43 15 48 -0.94 - 41 0 0 43 33 35 8 59 27.0 33 256 -10 44 4 16 43 3 10 44 9 59 42 57 33 -0.94 - 40 0 0 43 15 16 8 59 20.4 32 257 -9 43 45 57 42 44 52 43 51 40 42 39 16 -0.94 - 39 0 0 42 56 55 8 59 13.8 31 258 -8 43 27 35 42 26 33 43 33 18 42 20 57 -0.94 - 38 0 0 42 38 32 8 59 7.3 31 259 -7 43 9 11 42 8 11 43 14 53 42 2 35 -0.94 - 37 0 0 42 20 8 8 59 1.0 30 260 -7 42 50 45 41 49 47 42 56 27 41 44 12 -0.94 - 36 0 0 42 1 42 8 58 54.7 29 261 -6 42 32 18 41 31 23 42 38 0 41 25 47 -0.94 - 35 0 0 41 43 15 8 58 48.5 29 262 -5 42 13 50 41 12 57 42 19 32 41 7 22 -0.94 - 34 0 0 41 24 48 8 58 42.4 28 262 -4 41 55 21 40 54 31 42 1 3 40 48 56 -0.94 - 33 0 0 41 6 21 8 58 36.4 27 263 -3 41 36 53 40 36 6 41 42 34 40 30 31 -0.94 - 32 0 0 40 47 54 8 58 30.6 27 264 -3 41 18 25 40 17 40 41 24 6 40 12 6 -0.94 - 31 0 0 40 29 29 8 58 24.8 26 265 -2 40 59 57 39 59 16 41 5 38 39 53 42 -0.95 - 30 0 0 40 11 4 8 58 19.2 25 266 -1 40 41 31 39 40 53 40 47 12 39 35 20 -0.95 - 29 0 0 39 52 42 8 58 13.7 24 267 0 40 23 7 39 22 32 40 28 47 39 16 59 -0.95 - 28 0 0 39 34 21 8 58 8.3 24 267 1 40 4 45 39 4 14 40 10 24 38 58 41 -0.95 - 27 0 0 39 16 3 8 58 3.1 23 268 1 39 46 25 38 45 58 39 52 4 38 40 25 -0.95 - 26 0 0 38 57 49 8 57 58.0 22 269 2 39 28 9 38 27 45 39 33 48 38 22 13 -0.95 - 25 0 0 38 39 38 8 57 53.0 22 270 3 39 9 56 38 9 36 39 15 34 38 4 4 -0.95 - 24 0 0 38 21 31 8 57 48.2 21 270 4 38 51 47 37 51 31 38 57 25 37 45 59 -0.95 - 23 0 0 38 3 28 8 57 43.6 20 271 5 38 33 42 37 33 30 38 39 20 37 27 59 -0.95 - 22 0 0 37 45 31 8 57 39.1 19 272 6 38 15 42 37 15 35 38 21 20 37 10 4 -0.95 - 21 0 0 37 27 39 8 57 34.7 18 272 6 37 57 48 36 57 45 38 3 25 36 52 14 -0.95 - 20 0 0 37 9 52 8 57 30.6 18 273 7 37 40 0 36 40 1 37 45 36 36 34 30 -0.95 - 19 0 0 36 52 12 8 57 26.5 17 274 8 37 22 18 36 22 23 37 27 54 36 16 53 -0.96 - 18 0 0 36 34 39 8 57 22.7 16 274 9 37 4 42 36 4 52 37 10 18 35 59 22 -0.96 - 17 0 0 36 17 13 8 57 19.0 15 275 10 36 47 14 35 47 28 36 52 49 35 41 58 -0.96 - 16 0 0 35 59 54 8 57 15.5 14 276 10 36 29 53 35 30 11 36 35 28 35 24 43 -0.96 - 15 0 0 35 42 44 8 57 12.2 14 276 11 36 12 40 35 13 3 36 18 15 35 7 35 -0.96 - 14 0 0 35 25 42 8 57 9.1 13 277 12 35 55 36 34 56 4 36 1 11 34 50 36 -0.97 - 13 0 0 35 8 50 8 57 6.1 12 278 13 35 38 41 34 39 13 35 44 15 34 33 46 -0.97 - 12 0 0 34 52 6 8 57 3.4 11 278 14 35 21 56 34 22 32 35 27 29 34 17 5 -0.97 - 11 0 0 34 35 33 8 57 0.8 10 279 14 35 5 20 34 6 1 35 10 53 34 0 35 -0.98 - 10 0 0 34 19 10 8 56 58.5 9 279 15 34 48 55 33 49 41 34 54 27 33 44 14 -0.98 - 9 0 0 34 2 58 8 56 56.3 8 280 16 34 32 40 33 33 31 34 38 12 33 28 5 -0.99 - 8 0 0 33 46 57 8 56 54.3 8 280 17 34 16 37 33 17 32 34 22 8 33 12 6 -1.00 - 7 0 0 33 31 7 8 56 52.6 7 281 18 34 0 45 33 1 44 34 6 16 32 56 19 -1.01 - 6 0 0 33 15 30 8 56 51.0 6 282 18 33 45 5 32 46 9 33 50 35 32 40 45 -1.02 - 5 0 0 33 0 4 8 56 49.7 5 282 19 33 29 37 32 30 47 33 35 7 32 25 22 -1.03 - 4 0 0 32 44 52 8 56 48.5 4 283 20 33 14 23 32 15 37 33 19 52 32 10 13 -1.06 - 3 0 0 32 29 54 8 56 47.6 3 283 21 32 59 22 32 0 40 33 4 51 31 55 17 -1.09 - 2 0 0 32 15 9 8 56 46.9 2 284 22 32 44 34 31 45 58 32 50 3 31 40 35 -1.15 - 1 0 0 32 0 38 8 56 46.4 2 284 22 32 30 1 31 31 29 32 35 29 31 26 6 -1.28 0 0 0 31 46 21 8 56 46.1 1 285 23 32 15 42 31 17 15 32 21 10 31 11 52 -1.77 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 515-033935 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 54 06.3916 DE: +12 56 24.947 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 54 06.3916 DE: +12 56 24.947 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (850) Altona asteroid class: approx. diameter [km]: 76 approx. diameter ["]: 0.041 distance from Earth [AU]: 2.53880 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#66 date of fit: 2023 Oct 09 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): 0.011", 0.001", 80.163° remarks: * orbital elements for (850)Altona : Mean anomaly = 201.1836890098 deg Arg. of pericenter = 134.5597339918 deg Long. of node = 120.9399669679 deg Inclination = 15.5273374750 deg Eccentricity = 0.1294957288 Semimajor axis = 2.9966144733 AU Perihelion dist = 2.6085656980 AU Mag: H = 9.74, G = 0.15 Epoch of elements : MJD 60276.37826389 TDT (2023 Nov 28.3783) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#662023Oct09,8.02,2023,11,28,9.081840,0.129832,0.672372,-5.263373,1.015869,-0.003592,0.001162,0.000001,0.000000 -99.3739,12.9112,40.73,-21.28,False UCAC4 515-033935,6.90177544,12.9402630,0.00,11.97,0.00,0.0,0,,6.92435618,12.9112493,3.17,0.00,0,0,0 850,Altona,15.08,76.200,2.5388,0,0,-1.247,3.52,,3.8,0 0,201.1118,2023,11,28,134.5597,120.9400,15.5273,0.12950,2.99661,2.60857,9.75,5.0,0.15 1.093,0.0107,0.0007,80,0.0107,Known errors,-1.00,0,-1,-1 20231128_033935,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:10 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org