IOTA/IOTA-ES occultation update for (909) Ulla / TYC 151-00706-1 event on 2024 Dec 13, 15:46 UT Visible from Summary ------- On 2024 Dec 13 UT, the 116.544 km diameter asteroid (909) Ulla will occult a 11.9 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 2.26 mag to 14.05 mag (the magnitude of the asteroid) for at most 8.980 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 13, 15:38 - 2024 Dec 13, 15:55 * geocentric midpoint of event [JD]: 2460658.15741000 * magnitude of target star: 11.93 * magnitude drop [mag]: 2.26 * estimated maximum duration [s]: 8.980 * Moon: 96 % sunlit, 48° distance * Sun: 152° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 117 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 3.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.028, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.003", 79°) * approx speed of asteroid's shadow [km/s]: 12.9752 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 151-00706-1 by 909 Ulla on 2024 Dec 13 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 49 0 0 12 50 11 15 54 49.3 0 87 -22 13 22 0 .. .. .. 13 30 59 .. .. .. .... 50 0 0 12 53 14 15 54 49.2 1 87 -23 13 25 3 12 21 27 13 34 2 12 12 29 -0.07 51 0 0 12 56 10 15 54 49.0 2 87 -24 13 27 58 12 24 23 13 36 57 12 15 25 -0.08 52 0 0 12 58 57 15 54 48.7 3 88 -25 13 30 45 12 27 10 13 39 44 12 18 12 -0.09 53 0 0 13 1 36 15 54 48.1 4 88 -26 13 33 24 12 29 50 13 42 23 12 20 52 -0.09 54 0 0 13 4 8 15 54 47.5 5 88 -27 13 35 55 12 32 21 13 44 55 12 23 23 -0.09 55 0 0 13 6 31 15 54 46.7 6 88 -28 13 38 18 12 34 45 13 47 18 12 25 47 -0.09 56 0 0 13 8 46 15 54 45.8 7 89 -29 13 40 34 12 37 0 13 49 33 12 28 2 -0.09 57 0 0 13 10 53 15 54 44.7 8 89 -30 13 42 41 12 39 8 13 51 40 12 30 10 -0.09 58 0 0 13 12 52 15 54 43.5 9 89 -31 13 44 39 12 41 7 13 53 38 12 32 9 -0.09 59 0 0 13 14 43 15 54 42.2 10 89 -32 13 46 30 12 42 58 13 55 29 12 34 0 -0.09 60 0 0 13 16 26 15 54 40.7 11 89 -33 13 48 13 12 44 41 13 57 12 12 35 43 -0.09 61 0 0 13 18 1 15 54 39.1 12 90 -33 13 49 47 12 46 15 13 58 46 12 37 18 -0.09 62 0 0 13 19 27 15 54 37.3 13 90 -34 13 51 14 12 47 42 14 0 13 12 38 44 -0.09 63 0 0 13 20 45 15 54 35.4 14 90 -35 13 52 32 12 49 0 14 1 31 12 40 3 -0.09 64 0 0 13 21 56 15 54 33.4 15 90 -36 13 53 42 12 50 11 14 2 41 12 41 13 -0.09 65 0 0 13 22 58 15 54 31.2 16 91 -37 13 54 44 12 51 13 14 3 43 12 42 15 -0.09 66 0 0 13 23 51 15 54 29.0 16 91 -38 13 55 38 12 52 6 14 4 37 12 43 9 -0.09 67 0 0 13 24 37 15 54 26.5 17 91 -39 13 56 23 12 52 52 14 5 22 12 43 54 -0.09 68 0 0 13 25 14 15 54 24.0 18 91 -40 13 57 1 12 53 30 14 6 0 12 44 32 -0.10 69 0 0 13 25 44 15 54 21.3 19 92 -41 13 57 30 12 53 59 14 6 29 12 45 1 -0.10 70 0 0 13 26 5 15 54 18.5 20 92 -42 13 57 51 12 54 20 14 6 50 12 45 22 -0.10 71 0 0 13 26 18 15 54 15.5 21 92 -43 13 58 4 12 54 33 14 7 3 12 45 35 -0.10 72 0 0 13 26 23 15 54 12.5 22 92 -44 13 58 9 12 54 38 14 7 8 12 45 40 -0.10 73 0 0 13 26 19 15 54 9.3 23 93 -44 13 58 6 12 54 34 14 7 4 12 45 37 -0.10 74 0 0 13 26 8 15 54 5.9 24 93 -45 13 57 54 12 54 23 14 6 53 12 45 25 -0.10 75 0 0 13 25 48 15 54 2.5 25 93 -46 13 57 35 12 54 3 14 6 33 12 45 6 -0.10 76 0 0 13 25 21 15 53 58.9 26 93 -47 13 57 7 12 53 36 14 6 6 12 44 38 -0.10 77 0 0 13 24 45 15 53 55.2 27 94 -48 13 56 31 12 53 0 14 5 30 12 44 2 -0.10 78 0 0 13 24 1 15 53 51.4 28 94 -49 13 55 48 12 52 16 14 4 47 12 43 18 -0.10 79 0 0 13 23 9 15 53 47.5 29 94 -50 13 54 56 12 51 24 14 3 55 12 42 27 -0.10 80 0 0 13 22 10 15 53 43.4 30 94 -51 13 53 56 12 50 25 14 2 55 12 41 27 -0.10 81 0 0 13 21 2 15 53 39.2 31 95 -52 13 52 49 12 49 17 14 1 48 12 40 19 -0.10 82 0 0 13 19 46 15 53 34.9 32 95 -52 13 51 33 12 48 1 14 0 32 12 39 3 -0.10 83 0 0 13 18 23 15 53 30.5 33 95 -53 13 50 10 12 46 37 13 59 9 12 37 39 -0.10 84 0 0 13 16 51 15 53 26.0 34 95 -54 13 48 38 12 45 6 13 57 37 12 36 8 -0.10 85 0 0 13 15 12 15 53 21.4 35 96 -55 13 46 59 12 43 26 13 55 58 12 34 28 -0.10 86 0 0 13 13 25 15 53 16.7 36 96 -56 13 45 12 12 41 39 13 54 11 12 32 41 -0.10 87 0 0 13 11 30 15 53 11.8 37 96 -57 13 43 18 12 39 44 13 52 17 12 30 46 -0.10 88 0 0 13 9 27 15 53 6.8 38 96 -58 13 41 15 12 37 41 13 50 14 12 28 43 -0.10 89 0 0 13 7 17 15 53 1.8 38 97 -59 13 39 5 12 35 31 13 48 4 12 26 33 -0.10 90 0 0 13 4 59 15 52 56.6 39 97 -59 13 36 47 12 33 13 13 45 46 12 24 14 -0.10 91 0 0 13 2 33 15 52 51.3 40 97 -60 13 34 22 12 30 47 13 43 21 12 21 49 -0.10 92 0 0 13 0 0 15 52 46.0 41 98 -61 13 31 49 12 28 13 13 40 48 12 19 15 -0.10 93 0 0 12 57 20 15 52 40.5 42 98 -62 13 29 8 12 25 33 13 38 8 12 16 34 -0.10 94 0 0 12 54 32 15 52 34.9 43 98 -63 13 26 21 12 22 44 13 35 20 12 13 46 -0.10 95 0 0 12 51 36 15 52 29.2 44 98 -64 13 23 25 12 19 49 13 32 25 12 10 50 -0.10 96 0 0 12 48 33 15 52 23.4 45 99 -64 13 20 23 12 16 46 13 29 22 12 7 47 -0.10 97 0 0 12 45 23 15 52 17.6 46 99 -65 13 17 13 12 13 35 13 26 12 12 4 37 -0.10 98 0 0 12 42 6 15 52 11.6 47 99 -66 13 13 55 12 10 18 13 22 55 12 1 19 -0.10 99 0 0 12 38 41 15 52 5.6 48 100 -67 13 10 31 12 6 53 13 19 31 11 57 54 -0.10 100 0 0 12 35 9 15 51 59.4 49 100 -68 13 7 0 12 3 21 13 15 59 11 54 22 -0.10 101 0 0 12 31 31 15 51 53.2 50 100 -68 13 3 21 11 59 42 13 12 21 11 50 43 -0.10 102 0 0 12 27 45 15 51 46.8 51 101 -69 12 59 36 11 55 56 13 8 36 11 46 57 -0.10 103 0 0 12 23 52 15 51 40.4 52 101 -70 12 55 43 11 52 3 13 4 43 11 43 4 -0.10 104 0 0 12 19 52 15 51 33.9 53 101 -71 12 51 44 11 48 3 13 0 44 11 39 4 -0.10 105 0 0 12 15 46 15 51 27.4 54 102 -71 12 47 37 11 43 56 12 56 38 11 34 57 -0.10 106 0 0 12 11 33 15 51 20.7 55 102 -72 12 43 25 11 39 43 12 52 25 11 30 43 -0.10 107 0 0 12 7 13 15 51 14.0 56 103 -73 12 39 5 11 35 23 12 48 5 11 26 23 -0.10 108 0 0 12 2 46 15 51 7.2 56 103 -73 12 34 39 11 30 56 12 43 39 11 21 57 -0.10 109 0 0 11 58 14 15 51 0.3 57 103 -74 12 30 6 11 26 23 12 39 7 11 17 23 -0.10 110 0 0 11 53 34 15 50 53.3 58 104 -75 12 25 27 11 21 43 12 34 28 11 12 43 -0.10 111 0 0 11 48 48 15 50 46.3 59 104 -75 12 20 42 11 16 57 12 29 42 11 7 57 -0.10 112 0 0 11 43 56 15 50 39.2 60 105 -76 12 15 50 11 12 5 12 24 50 11 3 5 -0.10 113 0 0 11 38 58 15 50 32.0 61 105 -76 12 10 52 11 7 6 12 19 53 10 58 6 -0.10 114 0 0 11 33 54 15 50 24.8 62 106 -76 12 5 48 11 2 1 12 14 48 10 53 1 -0.10 115 0 0 11 28 43 15 50 17.5 63 106 -77 12 0 37 10 56 50 12 9 38 10 47 51 -0.10 116 0 0 11 23 27 15 50 10.1 64 107 -77 11 55 21 10 51 34 12 4 22 10 42 34 -0.10 117 0 0 11 18 4 15 50 2.7 65 107 -77 11 49 59 10 46 11 11 59 0 10 37 11 -0.10 118 0 0 11 12 36 15 49 55.2 66 108 -78 11 44 31 10 40 43 11 53 33 10 31 43 -0.10 119 0 0 11 7 2 15 49 47.7 67 109 -78 11 38 58 10 35 9 11 47 59 10 26 8 -0.10 120 0 0 11 1 23 15 49 40.1 68 110 -78 11 33 19 10 29 29 11 42 20 10 20 29 -0.10 121 0 0 10 55 38 15 49 32.4 69 110 -78 11 27 34 10 23 44 11 36 35 10 14 43 -0.10 122 0 0 10 49 48 15 49 24.7 70 111 -78 11 21 44 10 17 53 11 30 45 10 8 53 -0.10 123 0 0 10 43 52 15 49 17.0 70 112 -77 11 15 48 10 11 57 11 24 50 10 2 57 -0.10 124 0 0 10 37 51 15 49 9.2 71 113 -77 11 9 48 10 5 56 11 18 50 9 56 55 -0.10 125 0 0 10 31 45 15 49 1.4 72 114 -77 11 3 42 9 59 50 11 12 44 9 50 49 -0.10 126 0 0 10 25 34 15 48 53.5 73 115 -76 10 57 31 9 53 38 11 6 33 9 44 37 -0.10 127 0 0 10 19 18 15 48 45.6 74 116 -76 10 51 15 9 47 22 11 0 17 9 38 21 -0.10 128 0 0 10 12 57 15 48 37.6 75 118 -76 10 44 55 9 41 1 10 53 57 9 32 0 -0.10 129 0 0 10 6 31 15 48 29.6 76 119 -75 10 38 29 9 34 35 10 47 32 9 25 34 -0.10 130 0 0 10 0 1 15 48 21.6 77 121 -74 10 31 59 9 28 4 10 41 2 9 19 3 -0.10 131 0 0 9 53 26 15 48 13.5 78 123 -74 10 25 25 9 21 29 10 34 27 9 12 28 -0.10 132 0 0 9 46 47 15 48 5.5 78 125 -73 10 18 46 9 14 50 10 27 48 9 5 49 -0.10 133 0 0 9 40 4 15 47 57.3 79 128 -73 10 12 3 9 8 6 10 21 5 8 59 5 -0.10 134 0 0 9 33 16 15 47 49.2 80 131 -72 10 5 15 9 1 18 10 14 18 8 52 17 -0.10 135 0 0 9 26 24 15 47 41.1 81 135 -71 9 58 24 8 54 26 10 7 26 8 45 25 -0.10 136 0 0 9 19 28 15 47 32.9 82 139 -70 9 51 28 8 47 30 10 0 31 8 38 29 -0.10 137 0 0 9 12 29 15 47 24.7 82 144 -70 9 44 29 8 40 30 9 53 31 8 31 29 -0.10 138 0 0 9 5 25 15 47 16.5 83 150 -69 9 37 26 8 33 27 9 46 28 8 24 25 -0.10 139 0 0 8 58 18 15 47 8.2 83 157 -68 9 30 19 8 26 19 9 39 22 8 17 18 -0.10 140 0 0 8 51 8 15 47 0.0 84 165 -67 9 23 8 8 19 9 9 32 11 8 10 7 -0.10 141 0 0 8 43 54 15 46 51.8 84 174 -67 9 15 55 8 11 55 9 24 58 8 2 53 -0.10 142 0 0 8 36 37 15 46 43.5 84 183 -66 9 8 38 8 4 37 9 17 41 7 55 35 -0.10 143 0 0 8 29 16 15 46 35.2 84 193 -65 9 1 17 7 57 17 9 10 20 7 48 15 -0.10 144 0 0 8 21 53 15 46 27.0 84 203 -64 8 53 54 7 49 53 9 2 57 7 40 51 -0.10 145 0 0 8 14 26 15 46 18.7 84 212 -63 8 46 28 7 42 26 8 55 31 7 33 24 -0.10 146 0 0 8 6 57 15 46 10.5 83 219 -63 8 38 59 7 34 57 8 48 2 7 25 55 -0.10 147 0 0 7 59 25 15 46 2.2 83 226 -62 8 31 27 7 27 25 8 40 31 7 18 23 -0.10 148 0 0 7 51 51 15 45 54.0 82 232 -61 8 23 53 7 19 51 8 32 56 7 10 49 -0.10 149 0 0 7 44 14 15 45 45.7 81 237 -60 8 16 17 7 12 14 8 25 20 7 3 12 -0.10 150 0 0 7 36 35 15 45 37.5 81 241 -59 8 8 38 7 4 35 8 17 41 6 55 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45.0 68 264 -47 6 18 43 5 14 38 6 27 47 5 5 36 -0.10 165 0 0 5 38 42 15 43 37.2 67 264 -46 6 10 45 5 6 40 6 19 49 4 57 38 -0.10 166 0 0 5 30 44 15 43 29.5 66 265 -45 6 2 47 4 58 42 6 11 51 4 49 40 -0.10 167 0 0 5 22 46 15 43 21.8 65 265 -44 5 54 49 4 50 44 6 3 53 4 41 42 -0.10 168 0 0 5 14 48 15 43 14.2 65 266 -43 5 46 51 4 42 47 5 55 55 4 33 44 -0.10 169 0 0 5 6 50 15 43 6.7 64 266 -42 5 38 54 4 34 49 5 47 57 4 25 46 -0.10 170 0 0 4 58 53 15 42 59.2 63 267 -41 5 30 56 4 26 52 5 40 0 4 17 49 -0.10 171 0 0 4 50 56 15 42 51.8 62 267 -40 5 23 0 4 18 55 5 32 3 4 9 52 -0.10 172 0 0 4 43 0 15 42 44.4 61 268 -39 5 15 3 4 10 59 5 24 7 4 1 56 -0.10 173 0 0 4 35 5 15 42 37.1 60 268 -38 5 7 8 4 3 3 5 16 11 3 54 1 -0.10 174 0 0 4 27 10 15 42 29.9 59 268 -37 4 59 13 3 55 9 5 8 17 3 46 7 -0.10 175 0 0 4 19 17 15 42 22.7 58 269 -36 4 51 20 3 47 16 5 0 23 3 38 14 -0.10 176 0 0 4 11 25 15 42 15.7 57 269 -36 4 43 28 3 39 24 4 52 31 3 30 21 -0.10 177 0 0 4 3 34 15 42 8.6 56 269 -35 4 35 37 3 31 33 4 44 40 3 22 31 -0.10 178 0 0 3 55 45 15 42 1.7 55 270 -34 4 27 47 3 23 44 4 36 51 3 14 42 -0.10 179 0 0 3 47 57 15 41 54.8 54 270 -33 4 19 59 3 15 56 4 29 3 3 6 54 -0.10 180 0 0 3 40 11 15 41 48.1 53 270 -32 4 12 13 3 8 10 4 21 17 2 59 8 -0.10 -179 0 0 3 32 27 15 41 41.4 52 270 -31 4 4 29 3 0 26 4 13 32 2 51 24 -0.10 -178 0 0 3 24 45 15 41 34.8 51 271 -30 3 56 47 2 52 44 4 5 50 2 43 42 -0.10 -177 0 0 3 17 5 15 41 28.3 50 271 -29 3 49 7 2 45 5 3 58 10 2 36 3 -0.10 -176 0 0 3 9 27 15 41 21.8 49 271 -28 3 41 29 2 37 27 3 50 32 2 28 25 -0.10 -175 0 0 3 1 52 15 41 15.5 48 271 -27 3 33 54 2 29 52 3 42 57 2 20 50 -0.10 -174 0 0 2 54 19 15 41 9.2 47 271 -26 3 26 21 2 22 20 3 35 24 2 13 18 -0.10 -173 0 0 2 46 49 15 41 3.1 46 271 -25 3 18 51 2 14 50 3 27 54 2 5 48 -0.10 -172 0 0 2 39 22 15 40 57.0 45 272 -24 3 11 23 2 7 23 3 20 26 1 58 21 -0.10 -171 0 0 2 31 58 15 40 51.1 44 272 -23 3 3 59 1 59 59 3 13 2 1 50 57 -0.10 -170 0 0 2 24 37 15 40 45.2 43 272 -22 2 56 38 1 52 38 3 5 41 1 43 37 -0.10 -169 0 0 2 17 19 15 40 39.5 42 272 -21 2 49 20 1 45 21 2 58 22 1 36 19 -0.10 -168 0 0 2 10 5 15 40 33.8 41 272 -21 2 42 5 1 38 7 2 51 8 1 29 5 -0.10 -167 0 0 2 2 54 15 40 28.3 40 272 -20 2 34 54 1 30 56 2 43 57 1 21 54 -0.10 -166 0 0 1 55 47 15 40 22.9 39 272 -19 2 27 46 1 23 49 2 36 49 1 14 47 -0.10 -165 0 0 1 48 43 15 40 17.6 38 272 -18 2 20 43 1 16 46 2 29 45 1 7 44 -0.10 -164 0 0 1 41 44 15 40 12.3 37 272 -17 2 13 43 1 9 46 2 22 45 1 0 45 -0.10 -163 0 0 1 34 48 15 40 7.3 36 273 -16 2 6 47 1 2 51 2 15 49 0 53 50 -0.10 -162 0 0 1 27 56 15 40 2.3 35 273 -15 1 59 55 0 56 0 2 8 57 0 46 58 -0.10 -161 0 0 1 21 9 15 39 57.4 34 273 -14 1 53 8 0 49 13 2 2 10 0 40 11 -0.10 -160 0 0 1 14 26 15 39 52.7 33 273 -13 1 46 25 0 42 30 1 55 27 0 33 29 -0.10 -159 0 0 1 7 48 15 39 48.0 32 273 -12 1 39 46 0 35 52 1 48 48 0 26 51 -0.10 -158 0 0 1 1 14 15 39 43.5 31 273 -11 1 33 12 0 29 18 1 42 14 0 20 18 -0.10 -157 0 0 0 54 45 15 39 39.2 30 273 -10 1 26 43 0 22 50 1 35 45 0 13 49 -0.10 -156 0 0 0 48 21 15 39 34.9 29 273 -9 1 20 18 0 16 26 1 29 20 0 7 25 -0.10 -155 0 0 0 42 2 15 39 30.8 28 273 -8 1 13 59 0 10 7 1 23 1 0 1 7 -0.10 -154 0 0 0 35 48 15 39 26.8 28 273 -7 1 7 45 0 3 54 1 16 47 - 0 5 7 -0.10 -153 0 0 0 29 40 15 39 22.9 27 273 -6 1 1 36 - 0 2 15 1 10 38 - 0 11 15 -0.10 -152 0 0 0 23 36 15 39 19.2 26 273 -5 0 55 32 - 0 8 18 1 4 34 - 0 17 18 -0.10 -151 0 0 0 17 39 15 39 15.6 25 273 -5 0 49 34 - 0 14 15 0 58 36 - 0 23 16 -0.10 -150 0 0 0 11 46 15 39 12.1 24 273 -4 0 43 42 - 0 20 7 0 52 43 - 0 29 8 -0.10 -149 0 0 0 6 0 15 39 8.7 23 273 -3 0 37 55 - 0 25 54 0 46 56 - 0 34 54 -0.10 -148 0 0 0 0 19 15 39 5.5 22 273 -2 0 32 14 - 0 31 34 0 41 15 - 0 40 34 -0.10 -147 0 0 - 0 5 16 15 39 2.5 21 273 -1 0 26 38 - 0 37 9 0 35 40 - 0 46 9 -0.10 -146 0 0 - 0 10 45 15 38 59.5 20 273 0 0 21 9 - 0 42 38 0 30 10 - 0 51 37 -0.10 -145 0 0 - 0 16 8 15 38 56.7 19 273 1 0 15 46 - 0 48 0 0 24 47 - 0 57 0 -0.10 -144 0 0 - 0 21 24 15 38 54.1 18 273 2 0 10 29 - 0 53 16 0 19 30 - 1 2 16 -0.10 -143 0 0 - 0 26 34 15 38 51.5 17 273 3 0 5 19 - 0 58 26 0 14 20 - 1 7 26 -0.10 -142 0 0 - 0 31 38 15 38 49.2 16 273 4 0 0 15 - 1 3 30 0 9 16 - 1 12 29 -0.10 -141 0 0 - 0 36 36 15 38 46.9 15 273 5 - 0 4 43 - 1 8 27 0 4 18 - 1 17 26 -0.10 -140 0 0 - 0 41 26 15 38 44.8 14 273 6 - 0 9 34 - 1 13 17 - 0 0 33 - 1 22 16 -0.10 -139 0 0 - 0 46 10 15 38 42.9 13 273 7 - 0 14 18 - 1 18 1 - 0 5 17 - 1 27 0 -0.10 -138 0 0 - 0 50 47 15 38 41.1 12 273 8 - 0 18 55 - 1 22 38 - 0 9 55 - 1 31 37 -0.10 -137 0 0 - 0 55 17 15 38 39.4 11 273 9 - 0 23 26 - 1 27 7 - 0 14 25 - 1 36 7 -0.10 -136 0 0 - 0 59 41 15 38 37.9 10 273 10 - 0 27 49 - 1 31 30 - 0 18 49 - 1 40 29 -0.10 -135 0 0 - 1 3 57 15 38 36.6 9 273 11 - 0 32 5 - 1 35 46 - 0 23 5 - 1 44 45 -0.10 -134 0 0 - 1 8 6 15 38 35.3 8 273 11 - 0 36 15 - 1 39 55 - 0 27 14 - 1 48 54 -0.10 -133 0 0 - 1 12 7 15 38 34.3 7 273 12 - 0 40 16 - 1 43 56 - 0 31 16 - 1 52 55 -0.11 -132 0 0 - 1 16 2 15 38 33.3 6 273 13 - 0 44 11 - 1 47 50 - 0 35 11 - 1 56 49 -0.11 -131 0 0 - 1 19 48 15 38 32.6 5 273 14 - 0 47 58 - 1 51 37 - 0 38 58 - 2 0 36 -0.11 -130 0 0 - 1 23 28 15 38 31.9 4 273 15 - 0 51 38 - 1 55 16 - 0 42 38 - 2 4 15 -0.11 -129 0 0 - 1 27 0 15 38 31.5 3 273 16 - 0 55 10 - 1 58 48 - 0 46 10 - 2 7 46 -0.12 -128 0 0 - 1 30 24 15 38 31.1 2 273 17 - 0 58 34 - 2 2 12 - 0 49 34 - 2 11 10 -0.14 -127 0 0 - 1 33 40 15 38 31.0 1 273 18 - 1 1 51 - 2 5 28 - 0 52 51 - 2 14 26 -0.20 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 151-00706-1 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 43 24.4586 DE: +02 59 01.474 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 43 24.4587 DE: +02 59 01.473 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.9 * B mag [mag]: 12.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (909) Ulla asteroid class: approx. diameter [km]: 117 approx. diameter ["]: 0.063 distance from Earth [AU]: 2.54500 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#123 date of fit: 2023 Apr 27 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): 0.028", 0.003", 79.361° remarks: * orbital elements for (909)Ulla : Mean anomaly = 66.7753358539 deg Arg. of pericenter = 231.1460109639 deg Long. of node = 146.0494267465 deg Inclination = 18.7786268607 deg Eccentricity = 0.0939451684 Semimajor axis = 3.5499590238 AU Perihelion dist = 3.2164575255 AU Mag: H = 8.79, G = 0.15 Epoch of elements : MJD 60657.65741275 TDT (2024 Dec 13.6574) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1232023Apr27,8.98,2024,12,13,15.777840,0.012084,0.096634,-7.266182,0.915108,-0.001861,0.002105,0.000001,0.000000 141.6963,2.9598,-58.05,-23.21,False TYC 151-00706-1,6.72346073,2.9837427,12.31,11.93,11.72,0.0,0,,6.74558861,2.9597519,2.27,2.06,0,0,0 909,Ulla,14.05,116.544,2.5450,0,0,-1.676,3.16,,6.4,0 0,66.6785,2024,12,13,231.1460,146.0494,18.7786,0.09395,3.54996,3.21646,8.79,5.0,0.15 1.141,0.0280,0.0026,79,0.0089,Known errors,1.59,0,-1,-1 20241213_0706-1,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:43 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org