IOTA/IOTA-ES occultation update for (666) Desdemona / TYC 5606-00411-1 event on 2024 Sep 07, 06:07 UT Visible from Summary ------- On 2024 Sep 07 UT, the 28.3620856152049 km diameter asteroid (666) Desdemona will occult a 10.9 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.68 mag to 16.54 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: 99 * date and approx. time of event: 2024 Sep 07, 06:03 - 2024 Sep 07, 06:10 * geocentric midpoint of event [JD]: 2460560.75488904 * magnitude of target star: 10.87 * magnitude drop [mag]: 5.68 * estimated maximum duration [s]: 1.110 * Moon: 15 % sunlit, 22° distance * Sun: 67° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 32 * 1 sigma uncertainty interval [path widths]: +/- 0.11 * 1 sigma uncertainty interval [seconds]: +/- 0.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.005, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.005", 0.001", 101°) * approx speed of asteroid's shadow [km/s]: 25.7122 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5606-00411-1 by 666 Desdemona on 2024 Sep 7 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 76 0 0 40 0 21 6 3 22.1 0 109 54 39 51 11 40 9 33 39 49 8 40 11 36 .... 77 0 0 39 44 15 6 3 22.2 1 110 55 39 35 4 39 53 28 39 33 1 39 55 31 -0.20 78 0 0 39 27 54 6 3 22.3 2 110 55 39 18 41 39 37 7 39 16 38 39 39 10 -0.33 79 0 0 39 11 16 6 3 22.4 3 111 56 39 2 3 39 20 30 39 0 0 39 22 34 -0.38 80 0 0 38 54 23 6 3 22.7 4 112 56 38 45 9 39 3 37 38 43 6 39 5 41 -0.41 81 0 0 38 37 14 6 3 22.9 4 112 57 38 28 0 38 46 29 38 25 56 38 48 33 -0.43 82 0 0 38 19 50 6 3 23.3 5 113 57 38 10 35 38 29 6 38 8 31 38 31 10 -0.44 83 0 0 38 2 11 6 3 23.7 6 114 57 37 52 55 38 11 27 37 50 51 38 13 32 -0.45 84 0 0 37 44 17 6 3 24.1 7 114 58 37 35 0 37 53 34 37 32 56 37 55 39 -0.46 85 0 0 37 26 8 6 3 24.7 8 115 58 37 16 51 37 35 26 37 14 46 37 37 30 -0.46 86 0 0 37 7 44 6 3 25.2 9 115 59 36 58 26 37 17 3 36 56 22 37 19 8 -0.47 87 0 0 36 49 7 6 3 25.9 9 116 59 36 39 48 36 58 26 36 37 44 37 0 31 -0.47 88 0 0 36 30 15 6 3 26.6 10 117 59 36 20 56 36 39 35 36 18 51 36 41 40 -0.47 89 0 0 36 11 10 6 3 27.4 11 117 60 36 1 50 36 20 30 35 59 45 36 22 35 -0.48 90 0 0 35 51 51 6 3 28.2 12 118 60 35 42 30 36 1 12 35 40 25 36 3 17 -0.48 91 0 0 35 32 19 6 3 29.2 13 118 60 35 22 58 35 41 40 35 20 53 35 43 46 -0.48 92 0 0 35 12 34 6 3 30.2 14 119 61 35 3 12 35 21 56 35 1 7 35 24 1 -0.48 93 0 0 34 52 36 6 3 31.2 15 120 61 34 43 14 35 1 59 34 41 9 35 4 4 -0.48 94 0 0 34 32 26 6 3 32.3 16 120 61 34 23 4 34 41 49 34 20 59 34 43 55 -0.48 95 0 0 34 12 5 6 3 33.5 16 121 61 34 2 42 34 21 28 34 0 36 34 23 34 -0.49 96 0 0 33 51 31 6 3 34.8 17 121 61 33 42 8 34 0 55 33 40 3 34 3 2 -0.49 97 0 0 33 30 47 6 3 36.2 18 122 61 33 21 23 33 40 11 33 19 18 33 42 18 -0.49 98 0 0 33 9 52 6 3 37.6 19 123 61 33 0 28 33 19 17 32 58 22 33 21 23 -0.49 99 0 0 32 48 46 6 3 39.1 20 123 61 32 39 22 32 58 11 32 37 16 33 0 18 -0.49 100 0 0 32 27 31 6 3 40.6 21 124 61 32 18 6 32 36 56 32 16 0 32 39 2 -0.49 101 0 0 32 6 5 6 3 42.3 22 125 61 31 56 40 32 15 31 31 54 34 32 17 38 -0.49 102 0 0 31 44 31 6 3 44.0 23 125 61 31 35 6 31 53 57 31 33 0 31 56 4 -0.49 103 0 0 31 22 48 6 3 45.8 24 126 61 31 13 23 31 32 15 31 11 16 31 34 21 -0.49 104 0 0 31 0 57 6 3 47.6 25 126 61 30 51 31 31 10 24 30 49 25 31 12 30 -0.49 105 0 0 30 38 58 6 3 49.5 25 127 61 30 29 32 30 48 25 30 27 26 30 50 32 -0.49 106 0 0 30 16 52 6 3 51.6 26 128 61 30 7 26 30 26 19 30 5 20 30 28 26 -0.49 107 0 0 29 54 39 6 3 53.6 27 128 60 29 45 13 30 4 6 29 43 6 30 6 13 -0.49 108 0 0 29 32 20 6 3 55.8 28 129 60 29 22 53 29 41 47 29 20 47 29 43 53 -0.49 109 0 0 29 9 55 6 3 58.0 29 129 60 29 0 28 29 19 22 28 58 22 29 21 28 -0.50 110 0 0 28 47 24 6 4 0.3 30 130 59 28 37 58 28 56 51 28 35 51 28 58 58 -0.50 111 0 0 28 24 49 6 4 2.7 31 131 59 28 15 23 28 34 16 28 13 16 28 36 23 -0.50 112 0 0 28 2 10 6 4 5.2 32 131 59 27 52 44 28 11 37 27 50 37 28 13 44 -0.50 113 0 0 27 39 27 6 4 7.7 33 132 58 27 30 1 27 48 55 27 27 55 27 51 1 -0.50 114 0 0 27 16 42 6 4 10.3 34 133 58 27 7 15 27 26 9 27 5 9 27 28 15 -0.50 115 0 0 26 53 53 6 4 12.9 35 133 57 26 44 27 27 3 20 26 42 21 27 5 27 -0.50 116 0 0 26 31 3 6 4 15.7 36 134 57 26 21 37 26 40 30 26 19 31 26 42 37 -0.50 117 0 0 26 8 12 6 4 18.5 36 135 56 25 58 46 26 17 38 25 56 40 26 19 45 -0.50 118 0 0 25 45 20 6 4 21.4 37 136 55 25 35 54 25 54 46 25 33 48 25 56 53 -0.50 119 0 0 25 22 27 6 4 24.3 38 136 55 25 13 2 25 31 53 25 10 56 25 34 0 -0.50 120 0 0 24 59 35 6 4 27.4 39 137 54 24 50 10 25 9 1 24 48 4 25 11 8 -0.50 121 0 0 24 36 45 6 4 30.4 40 138 54 24 27 20 24 46 10 24 25 14 24 48 17 -0.50 122 0 0 24 13 56 6 4 33.6 41 139 53 24 4 31 24 23 21 24 2 25 24 25 27 -0.50 123 0 0 23 51 9 6 4 36.8 42 140 52 23 41 45 24 0 34 23 39 39 24 2 40 -0.50 124 0 0 23 28 25 6 4 40.1 43 140 51 23 19 1 23 37 49 23 16 56 23 39 56 -0.50 125 0 0 23 5 44 6 4 43.4 44 141 51 22 56 21 23 15 9 22 54 16 23 17 15 -0.50 126 0 0 22 43 8 6 4 46.9 45 142 50 22 33 45 22 52 32 22 31 40 22 54 38 -0.50 127 0 0 22 20 36 6 4 50.3 45 143 49 22 11 14 22 29 59 22 9 8 22 32 5 -0.50 128 0 0 21 58 10 6 4 53.9 46 144 48 21 48 48 22 7 32 21 46 43 22 9 38 -0.50 129 0 0 21 35 49 6 4 57.4 47 145 48 21 26 28 21 45 11 21 24 23 21 47 17 -0.50 130 0 0 21 13 35 6 5 1.1 48 146 47 21 4 14 21 22 57 21 2 9 21 25 2 -0.50 131 0 0 20 51 28 6 5 4.8 49 147 46 20 42 8 21 0 49 20 40 3 21 2 54 -0.50 132 0 0 20 29 29 6 5 8.5 50 148 45 20 20 9 20 38 49 20 18 4 20 40 54 -0.50 133 0 0 20 7 37 6 5 12.3 50 149 44 19 58 18 20 16 57 19 56 14 20 19 2 -0.50 134 0 0 19 45 55 6 5 16.2 51 150 43 19 36 36 19 55 14 19 34 32 19 57 19 -0.51 135 0 0 19 24 22 6 5 20.1 52 151 43 19 15 4 19 33 41 19 13 0 19 35 45 -0.51 136 0 0 19 2 59 6 5 24.0 53 153 42 18 53 42 19 12 17 18 51 37 19 14 22 -0.51 137 0 0 18 41 46 6 5 28.0 54 154 41 18 32 30 18 51 4 18 30 26 18 53 8 -0.51 138 0 0 18 20 45 6 5 32.0 54 155 40 18 11 29 18 30 1 18 9 25 18 32 6 -0.51 139 0 0 17 59 55 6 5 36.1 55 156 39 17 50 40 18 9 11 17 48 36 18 11 15 -0.51 140 0 0 17 39 17 6 5 40.2 56 158 38 17 30 2 17 48 32 17 27 59 17 50 36 -0.51 141 0 0 17 18 52 6 5 44.4 56 159 37 17 9 38 17 28 6 17 7 34 17 30 10 -0.51 142 0 0 16 58 39 6 5 48.5 57 161 36 16 49 26 17 7 53 16 47 23 17 9 57 -0.51 143 0 0 16 38 41 6 5 52.7 58 162 35 16 29 29 16 47 54 16 27 26 16 49 58 -0.51 144 0 0 16 18 57 6 5 57.0 58 164 34 16 9 45 16 28 9 16 7 42 16 30 12 -0.51 145 0 0 15 59 27 6 6 1.3 59 166 33 15 50 16 16 8 38 15 48 13 16 10 42 -0.51 146 0 0 15 40 12 6 6 5.6 59 168 32 15 31 2 15 49 23 15 29 0 15 51 26 -0.51 147 0 0 15 21 14 6 6 9.9 60 169 31 15 12 4 15 30 23 15 10 2 15 32 26 -0.51 148 0 0 15 2 30 6 6 14.2 60 171 30 14 53 22 15 11 40 14 51 20 15 13 42 -0.51 149 0 0 14 44 4 6 6 18.6 61 173 29 14 34 56 14 53 12 14 32 54 14 55 15 -0.51 150 0 0 14 25 54 6 6 23.0 61 175 28 14 16 47 14 35 1 14 14 45 14 37 4 -0.51 151 0 0 14 8 1 6 6 27.4 61 177 27 13 58 55 14 17 8 13 56 54 14 19 10 -0.51 152 0 0 13 50 27 6 6 31.8 62 179 26 13 41 21 13 59 33 13 39 20 14 1 35 -0.51 153 0 0 13 33 10 6 6 36.2 62 181 25 13 24 5 13 42 15 13 22 4 13 44 17 -0.51 154 0 0 13 16 11 6 6 40.6 62 183 24 13 7 8 13 25 16 13 5 7 13 27 18 -0.51 155 0 0 12 59 32 6 6 45.1 63 186 23 12 50 29 13 8 36 12 48 28 13 10 37 -0.51 156 0 0 12 43 12 6 6 49.5 63 188 22 12 34 9 12 52 14 12 32 9 12 54 16 -0.51 157 0 0 12 27 11 6 6 54.0 63 190 21 12 18 9 12 36 13 12 16 9 12 38 14 -0.51 158 0 0 12 11 30 6 6 58.4 63 192 20 12 2 29 12 20 31 12 0 28 12 22 32 -0.51 159 0 0 11 56 9 6 7 2.9 63 194 19 11 47 9 12 5 9 11 45 8 12 7 10 -0.51 160 0 0 11 41 8 6 7 7.3 63 197 18 11 32 9 11 50 8 11 30 9 11 52 9 -0.51 161 0 0 11 26 28 6 7 11.8 63 199 17 11 17 30 11 35 27 11 15 30 11 37 28 -0.51 162 0 0 11 12 10 6 7 16.2 63 201 16 11 3 12 11 21 8 11 1 12 11 23 8 -0.51 163 0 0 10 58 12 6 7 20.6 62 203 15 10 49 15 11 7 10 10 47 16 11 9 10 -0.51 164 0 0 10 44 36 6 7 25.0 62 205 14 10 35 40 10 53 33 10 33 41 10 55 33 -0.51 165 0 0 10 31 22 6 7 29.5 62 207 13 10 22 27 10 40 19 10 20 28 10 42 18 -0.51 166 0 0 10 18 30 6 7 33.8 62 209 12 10 9 36 10 27 26 10 7 36 10 29 25 -0.51 167 0 0 10 6 1 6 7 38.2 61 211 11 9 57 7 10 14 55 9 55 7 10 16 55 -0.51 168 0 0 9 53 53 6 7 42.6 61 213 10 9 45 0 10 2 48 9 43 1 10 4 47 -0.51 169 0 0 9 42 9 6 7 46.9 61 215 9 9 33 16 9 51 2 9 31 17 9 53 2 -0.51 170 0 0 9 30 47 6 7 51.3 60 217 8 9 21 55 9 39 40 9 19 56 9 41 39 -0.51 171 0 0 9 19 49 6 7 55.6 60 219 7 9 10 57 9 28 41 9 8 59 9 30 40 -0.51 172 0 0 9 9 13 6 7 59.8 59 220 6 9 0 22 9 18 5 8 58 24 9 20 4 -0.52 173 0 0 8 59 1 6 8 4.1 59 222 5 8 50 11 9 7 53 8 48 13 9 9 51 -0.52 174 0 0 8 49 13 6 8 8.3 58 223 4 8 40 23 8 58 4 8 38 25 9 0 2 -0.52 175 0 0 8 39 49 6 8 12.5 58 225 3 8 30 59 8 48 39 8 29 1 8 50 37 -0.52 176 0 0 8 30 48 6 8 16.7 57 226 2 8 21 59 8 39 37 8 20 1 8 41 36 -0.52 177 0 0 8 22 11 6 8 20.8 56 228 1 8 13 23 8 31 0 8 11 25 8 32 58 -0.52 178 0 0 8 13 59 6 8 24.9 56 229 0 8 5 11 8 22 47 8 3 13 8 24 45 -0.52 179 0 0 8 6 10 6 8 28.9 55 230 -1 7 57 23 8 14 58 7 55 25 8 16 56 -0.52 180 0 0 7 58 46 6 8 33.0 54 231 -2 7 50 0 8 7 34 7 48 2 8 9 32 -0.52 -179 0 0 7 51 47 6 8 37.0 54 232 -3 7 43 0 8 0 34 7 41 3 8 2 32 -0.52 -178 0 0 7 45 12 6 8 40.9 53 233 -4 7 36 26 7 53 59 7 34 28 7 55 56 -0.52 -177 0 0 7 39 1 6 8 44.8 52 235 -5 7 30 16 7 47 48 7 28 19 7 49 45 -0.52 -176 0 0 7 33 16 6 8 48.7 51 235 -6 7 24 30 7 42 2 7 22 33 7 43 59 -0.52 -175 0 0 7 27 55 6 8 52.5 51 236 -7 7 19 10 7 36 40 7 17 13 7 38 38 -0.52 -174 0 0 7 22 59 6 8 56.3 50 237 -8 7 14 14 7 31 44 7 12 17 7 33 41 -0.52 -173 0 0 7 18 27 6 9 0.0 49 238 -9 7 9 43 7 27 12 7 7 46 7 29 10 -0.52 -172 0 0 7 14 21 6 9 3.7 48 239 -10 7 5 37 7 23 6 7 3 40 7 25 3 -0.52 -171 0 0 7 10 40 6 9 7.3 47 240 -11 7 1 56 7 19 24 6 59 59 7 21 22 -0.52 -170 0 0 7 7 23 6 9 10.9 46 240 -12 6 58 40 7 16 8 6 56 43 7 18 5 -0.52 -169 0 0 7 4 32 6 9 14.4 46 241 -13 6 55 49 7 13 16 6 53 52 7 15 13 -0.52 -168 0 0 7 2 6 6 9 17.9 45 242 -14 6 53 23 7 10 50 6 51 26 7 12 47 -0.52 -167 0 0 7 0 5 6 9 21.3 44 242 -15 6 51 21 7 8 48 6 49 25 7 10 46 -0.52 -166 0 0 6 58 29 6 9 24.6 43 243 -16 6 49 45 7 7 12 6 47 49 7 9 9 -0.52 -165 0 0 6 57 17 6 9 28.0 42 243 -17 6 48 35 7 6 1 6 46 38 7 7 58 -0.52 -164 0 0 6 56 32 6 9 31.2 41 244 -18 6 47 49 7 5 15 6 45 52 7 7 12 -0.52 -163 0 0 6 56 11 6 9 34.4 40 244 -19 6 47 28 7 4 54 6 45 31 7 6 51 -0.52 -162 0 0 6 56 15 6 9 37.5 39 245 -20 6 47 32 7 4 58 6 45 35 7 6 55 -0.52 -161 0 0 6 56 44 6 9 40.6 38 245 -21 6 48 1 7 5 28 6 46 5 7 7 25 -0.52 -160 0 0 6 57 38 6 9 43.6 37 246 -22 6 48 55 7 6 22 6 46 59 7 8 19 -0.52 -159 0 0 6 58 58 6 9 46.5 37 246 -23 6 50 15 7 7 41 6 48 18 7 9 38 -0.52 -158 0 0 7 0 42 6 9 49.4 36 247 -24 6 51 59 7 9 25 6 50 2 7 11 22 -0.52 -157 0 0 7 2 51 6 9 52.2 35 247 -25 6 54 8 7 11 35 6 52 11 7 13 32 -0.52 -156 0 0 7 5 25 6 9 55.0 34 247 -26 6 56 42 7 14 9 6 54 45 7 16 6 -0.52 -155 0 0 7 8 24 6 9 57.7 33 248 -27 6 59 40 7 17 8 6 57 43 7 19 5 -0.52 -154 0 0 7 11 47 6 10 0.3 32 248 -28 7 3 3 7 20 31 7 1 7 7 22 28 -0.52 -153 0 0 7 15 35 6 10 2.8 31 248 -29 7 6 51 7 24 20 7 4 55 7 26 17 -0.52 -152 0 0 7 19 48 6 10 5.3 30 249 -30 7 11 4 7 28 33 7 9 7 7 30 30 -0.52 -151 0 0 7 24 25 6 10 7.7 29 249 -31 7 15 41 7 33 10 7 13 44 7 35 7 -0.52 -150 0 0 7 29 27 6 10 10.0 28 249 -32 7 20 42 7 38 12 7 18 45 7 40 9 -0.52 -149 0 0 7 34 53 6 10 12.3 27 250 -33 7 26 8 7 43 38 7 24 11 7 45 36 -0.52 -148 0 0 7 40 43 6 10 14.5 26 250 -34 7 31 58 7 49 29 7 30 1 7 51 27 -0.52 -147 0 0 7 46 58 6 10 16.6 25 250 -35 7 38 12 7 55 44 7 36 15 7 57 41 -0.52 -146 0 0 7 53 36 6 10 18.6 24 250 -35 7 44 50 8 2 23 7 42 53 8 4 20 -0.52 -145 0 0 8 0 39 6 10 20.6 23 251 -36 7 51 52 8 9 26 7 49 55 8 11 23 -0.52 -144 0 0 8 8 5 6 10 22.5 22 251 -37 7 59 18 8 16 52 7 57 21 8 18 50 -0.52 -143 0 0 8 15 55 6 10 24.3 21 251 -38 8 7 8 8 24 42 8 5 10 8 26 40 -0.52 -142 0 0 8 24 8 6 10 26.0 20 251 -39 8 15 21 8 32 56 8 13 23 8 34 54 -0.52 -141 0 0 8 32 45 6 10 27.7 19 251 -40 8 23 57 8 41 34 8 21 59 8 43 32 -0.52 -140 0 0 8 41 45 6 10 29.2 18 252 -41 8 32 57 8 50 34 8 30 59 8 52 32 -0.52 -139 0 0 8 51 8 6 10 30.7 17 252 -42 8 42 19 8 59 58 8 40 21 9 1 56 -0.52 -138 0 0 9 0 54 6 10 32.1 16 252 -43 8 52 5 9 9 44 8 50 7 9 11 43 -0.52 -137 0 0 9 11 3 6 10 33.5 15 252 -44 9 2 13 9 19 54 9 0 15 9 21 52 -0.52 -136 0 0 9 21 34 6 10 34.7 14 252 -45 9 12 44 9 30 25 9 10 45 9 32 24 -0.52 -135 0 0 9 32 28 6 10 35.9 13 253 -46 9 23 37 9 41 20 9 21 38 9 43 18 -0.52 -134 0 0 9 43 44 6 10 36.9 12 253 -46 9 34 52 9 52 36 9 32 54 9 54 35 -0.52 -133 0 0 9 55 22 6 10 37.9 11 253 -47 9 46 29 10 4 14 9 44 31 10 6 14 -0.52 -132 0 0 10 7 21 6 10 38.8 10 253 -48 9 58 28 10 16 15 9 56 29 10 18 14 -0.53 -131 0 0 10 19 42 6 10 39.7 9 253 -49 10 10 49 10 28 36 10 8 50 10 30 36 -0.53 -130 0 0 10 32 24 6 10 40.4 8 254 -50 10 23 30 10 41 19 10 21 31 10 43 19 -0.53 -129 0 0 10 45 28 6 10 41.1 7 254 -51 10 36 33 10 54 23 10 34 34 10 56 23 -0.53 -128 0 0 10 58 52 6 10 41.6 6 254 -51 10 49 57 11 7 48 10 47 57 11 9 48 -0.53 -127 0 0 11 12 37 6 10 42.1 5 254 -52 11 3 41 11 21 34 11 1 41 11 23 33 -0.54 -126 0 0 11 26 42 6 10 42.5 4 254 -53 11 17 45 11 35 39 11 15 45 11 37 39 -0.55 -125 0 0 11 41 7 6 10 42.8 3 255 -54 11 32 9 11 50 5 11 30 9 11 52 5 -0.56 -124 0 0 11 55 51 6 10 43.1 2 255 -55 11 46 53 12 4 50 11 44 53 12 6 51 -0.58 -123 0 0 12 10 55 6 10 43.2 1 255 -55 12 1 57 12 19 55 11 59 56 12 21 56 -0.64 -122 0 0 12 26 19 6 10 43.3 0 255 -56 12 17 19 12 35 19 12 15 19 12 37 20 -1.60 Uncertainty in time = +/- 0 secs Prediction of 2023 Jul 15.5 Data for the target star ------------------------ * name: TYC 5606-00411-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 22 10.3559 DE: -14 21 29.101 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 22 10.3559 DE: -14 21 29.101 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.9 * B mag [mag]: 12.0 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (666) Desdemona asteroid class: approx. diameter [km]: 28 approx. diameter ["]: 0.012 distance from Earth [AU]: 3.22520 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 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): 0.005", 0.001", 100.789° remarks: * orbital elements for (666)Desdemona : Mean anomaly = 241.3403414753 deg Arg. of pericenter = 174.0684872618 deg Long. of node = 215.2961820049 deg Inclination = 7.5821719361 deg Eccentricity = 0.2364629837 Semimajor axis = 2.5949954210 AU Perihelion dist = 1.9813750610 AU Mag: H = 10.68, G = 0.15 Epoch of elements : MJD 60560.25488900 TDT (2024 Sep 07.2549) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,1.11,2024,9,7,6.117337,0.112308,0.441858,14.061577,-3.590190,0.005137,-0.001172,-0.000001,0.000000 152.3083,-14.4461,87.73,5.86,False TYC 5606-00411-1,15.36954335,-14.3580838,11.95,10.87,10.29,0.1,0,,15.39223747,-14.4460917,5.67,5.80,0,0,0 666,Desdemona,16.54,28.596,3.2252,0,0,2.640,-9.79,,1.8,0 0,241.2802,2024,9,7,174.0685,215.2962,7.5822,0.23646,2.59500,1.98138,10.68,5.0,0.15 1.112,0.0050,0.0013,101,0.0014,Known errors,1.15,0,-1,-1 20240907_0411-1,60140.55 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org