IOTA/IOTA-ES occultation update for (3240) Laokoon / UCAC4 378-170830 event on 2023 Nov 05, 22:17 UT Visible from Europe Summary ------- On 2023 Nov 05 UT, the 51.7 km diameter asteroid (3240) Laokoon will occult a 11.9 mag star in the constellation Aquarius for observers along a path across Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.76 mag to 17.61 mag (the magnitude of the asteroid) for at most 4.060 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 05, 22:08 - 2023 Nov 05, 22:24 * geocentric midpoint of event [JD]: 2460254.42810946 * magnitude of target star: 11.86 * magnitude drop [mag]: 5.76 * estimated maximum duration [s]: 4.060 * Moon: 44 % sunlit, 173° distance * Sun: 94° distance * rough path description: Europe The occultation path -------------------- * approximate projected width [km]: 58 * 1 sigma uncertainty interval [path widths]: +/- 0.10 * 1 sigma uncertainty interval [seconds]: +/- 4.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.001", 70°) * approx speed of asteroid's shadow [km/s]: 12.7285 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 378-170830 by 3240 Laokoon on 2023 Nov 5 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 -145 0 0 8 51 7 22 8 59.2 0 105 63 8 35 3 9 7 13 8 31 54 9 10 23 .... -144 0 0 8 35 59 22 8 59.4 1 105 63 8 19 56 8 52 4 8 16 48 8 55 13 -0.24 -143 0 0 8 21 13 22 8 59.7 2 105 62 8 5 12 8 37 17 8 2 4 8 40 26 -0.34 -142 0 0 8 6 50 22 9 0.2 3 105 62 7 50 50 8 22 52 7 47 42 8 26 1 -0.39 -141 0 0 7 52 50 22 9 0.9 4 105 62 7 36 51 8 8 51 7 33 44 8 11 59 -0.41 -140 0 0 7 39 13 22 9 1.8 5 105 62 7 23 16 7 55 12 7 20 8 7 58 21 -0.42 -139 0 0 7 25 59 22 9 2.8 7 105 61 7 10 3 7 41 58 7 6 56 7 45 6 -0.43 -138 0 0 7 13 9 22 9 4.0 8 106 61 6 57 14 7 29 6 6 54 7 7 32 14 -0.44 -137 0 0 7 0 43 22 9 5.4 9 106 60 6 44 50 7 16 39 6 41 43 7 19 47 -0.45 -136 0 0 6 48 41 22 9 7.0 10 106 60 6 32 49 7 4 36 6 29 42 7 7 44 -0.45 -135 0 0 6 37 4 22 9 8.7 11 106 59 6 21 13 6 52 58 6 18 6 6 56 5 -0.46 -134 0 0 6 25 51 22 9 10.6 12 106 59 6 10 1 6 41 44 6 6 55 6 44 51 -0.46 -133 0 0 6 15 3 22 9 12.7 13 106 58 5 59 14 6 30 54 5 56 8 6 34 1 -0.46 -132 0 0 6 4 40 22 9 15.0 14 106 57 5 48 52 6 20 30 5 45 46 6 23 37 -0.46 -131 0 0 5 54 42 22 9 17.4 15 107 57 5 38 55 6 10 32 5 35 49 6 13 38 -0.47 -130 0 0 5 45 10 22 9 20.0 16 107 56 5 29 23 6 0 58 5 26 18 6 4 4 -0.47 -129 0 0 5 36 3 22 9 22.7 17 107 55 5 20 17 5 51 51 5 17 12 5 54 57 -0.47 -128 0 0 5 27 22 22 9 25.6 18 107 55 5 11 37 5 43 9 5 8 32 5 46 14 -0.47 -127 0 0 5 19 7 22 9 28.7 19 107 54 5 3 23 5 34 53 5 0 18 5 37 58 -0.47 -126 0 0 5 11 18 22 9 32.0 20 107 53 4 55 34 5 27 3 4 52 30 5 30 8 -0.47 -125 0 0 5 3 55 22 9 35.4 21 107 53 4 48 12 5 19 39 4 45 8 5 22 44 -0.47 -124 0 0 4 56 58 22 9 39.0 22 108 52 4 41 16 5 12 42 4 38 12 5 15 47 -0.48 -123 0 0 4 50 28 22 9 42.7 23 108 51 4 34 47 5 6 11 4 31 43 5 9 16 -0.48 -122 0 0 4 44 25 22 9 46.6 24 108 50 4 28 44 5 0 7 4 25 40 5 3 12 -0.48 -121 0 0 4 38 48 22 9 50.7 25 108 49 4 23 8 4 54 30 4 20 4 4 57 35 -0.48 -120 0 0 4 33 38 22 9 54.9 26 108 48 4 17 59 4 49 20 4 14 55 4 52 25 -0.48 -119 0 0 4 28 56 22 9 59.3 27 108 48 4 13 17 4 44 37 4 10 13 4 47 42 -0.48 -118 0 0 4 24 40 22 10 3.8 28 109 47 4 9 2 4 40 21 4 5 58 4 43 25 -0.48 -117 0 0 4 20 52 22 10 8.5 29 109 46 4 5 13 4 36 32 4 2 10 4 39 37 -0.48 -116 0 0 4 17 31 22 10 13.3 30 109 45 4 1 53 4 33 11 3 58 49 4 36 15 -0.48 -115 0 0 4 14 37 22 10 18.3 31 109 44 3 58 59 4 30 17 3 55 56 4 33 21 -0.48 -114 0 0 4 12 11 22 10 23.4 32 110 43 3 56 33 4 27 50 3 53 29 4 30 55 -0.48 -113 0 0 4 10 12 22 10 28.7 32 110 42 3 54 34 4 25 51 3 51 31 4 28 56 -0.48 -112 0 0 4 8 41 22 10 34.1 33 110 41 3 53 3 4 24 20 3 50 0 4 27 25 -0.49 -111 0 0 4 7 37 22 10 39.7 34 110 41 3 52 0 4 23 17 3 48 56 4 26 21 -0.49 -110 0 0 4 7 2 22 10 45.4 35 111 40 3 51 24 4 22 41 3 48 21 4 25 45 -0.49 -109 0 0 4 6 54 22 10 51.2 36 111 39 3 51 16 4 22 33 3 48 13 4 25 38 -0.49 -108 0 0 4 7 14 22 10 57.2 37 112 38 3 51 36 4 22 53 3 48 33 4 25 58 -0.49 -107 0 0 4 8 1 22 11 3.3 38 112 37 3 52 24 4 23 41 3 49 20 4 26 46 -0.49 -106 0 0 4 9 17 22 11 9.5 39 112 36 3 53 39 4 24 57 3 50 36 4 28 2 -0.49 -105 0 0 4 11 1 22 11 15.9 40 113 35 3 55 23 4 26 41 3 52 19 4 29 46 -0.49 -104 0 0 4 13 12 22 11 22.4 41 113 34 3 57 34 4 28 53 3 54 30 4 31 58 -0.49 -103 0 0 4 15 52 22 11 29.0 42 114 33 4 0 13 4 31 33 3 57 9 4 34 38 -0.49 -102 0 0 4 19 0 22 11 35.8 43 114 32 4 3 20 4 34 41 4 0 17 4 37 46 -0.49 -101 0 0 4 22 35 22 11 42.6 44 115 31 4 6 56 4 38 17 4 3 52 4 41 22 -0.49 -100 0 0 4 26 39 22 11 49.6 45 115 30 4 10 59 4 42 22 4 7 55 4 45 27 -0.49 - 99 0 0 4 31 11 22 11 56.7 46 116 29 4 15 30 4 46 54 4 12 26 4 49 59 -0.49 - 98 0 0 4 36 11 22 12 4.0 46 116 28 4 20 29 4 51 54 4 17 25 4 55 0 -0.49 - 97 0 0 4 41 38 22 12 11.3 47 117 27 4 25 56 4 57 23 4 22 51 5 0 28 -0.49 - 96 0 0 4 47 34 22 12 18.8 48 118 26 4 31 51 5 3 19 4 28 46 5 6 25 -0.49 - 95 0 0 4 53 57 22 12 26.3 49 119 25 4 38 14 5 9 43 4 35 9 5 12 49 -0.49 - 94 0 0 5 0 49 22 12 34.0 50 119 24 4 45 4 5 16 36 4 41 59 5 19 42 -0.49 - 93 0 0 5 8 8 22 12 41.8 51 120 23 4 52 22 5 23 56 4 49 17 5 27 2 -0.49 - 92 0 0 5 15 55 22 12 49.6 52 121 22 5 0 8 5 31 44 4 57 3 5 34 50 -0.49 - 91 0 0 5 24 10 22 12 57.6 52 122 21 5 8 22 5 39 59 5 5 16 5 43 6 -0.49 - 90 0 0 5 32 52 22 13 5.7 53 123 20 5 17 3 5 48 43 5 13 57 5 51 49 -0.49 - 89 0 0 5 42 2 22 13 13.8 54 124 19 5 26 12 5 57 53 5 23 6 6 1 0 -0.49 - 88 0 0 5 51 39 22 13 22.1 55 125 18 5 35 48 6 7 32 5 32 42 6 10 39 -0.49 - 87 0 0 6 1 43 22 13 30.4 55 126 17 5 45 51 6 17 37 5 42 45 6 20 45 -0.49 - 86 0 0 6 12 15 22 13 38.8 56 127 16 5 56 21 6 28 10 5 53 15 6 31 18 -0.49 - 85 0 0 6 23 13 22 13 47.3 57 129 15 6 7 19 6 39 10 6 4 12 6 42 18 -0.49 - 84 0 0 6 34 39 22 13 55.9 58 130 14 6 18 43 6 50 37 6 15 36 6 53 45 -0.49 - 83 0 0 6 46 31 22 14 4.6 58 132 13 6 30 34 7 2 31 6 27 27 7 5 39 -0.49 - 82 0 0 6 58 50 22 14 13.3 59 133 12 6 42 52 7 14 51 6 39 44 7 18 0 -0.49 - 81 0 0 7 11 36 22 14 22.1 59 135 11 6 55 36 7 27 38 6 52 28 7 30 47 -0.49 - 80 0 0 7 24 48 22 14 30.9 60 136 10 7 8 46 7 40 51 7 5 38 7 44 1 -0.49 - 79 0 0 7 38 25 22 14 39.8 60 138 9 7 22 22 7 54 31 7 19 14 7 57 40 -0.49 - 78 0 0 7 52 29 22 14 48.8 61 140 8 7 36 25 8 8 36 7 33 16 8 11 46 -0.49 - 77 0 0 8 6 58 22 14 57.8 61 142 7 7 50 52 8 23 7 7 47 43 8 26 17 -0.49 - 76 0 0 8 21 53 22 15 6.9 62 144 5 8 5 45 8 38 3 8 2 36 8 41 13 -0.49 - 75 0 0 8 37 13 22 15 16.0 62 146 4 8 21 4 8 53 24 8 17 54 8 56 35 -0.49 - 74 0 0 8 52 57 22 15 25.2 63 148 3 8 36 47 9 9 10 8 33 36 9 12 22 -0.49 - 73 0 0 9 9 6 22 15 34.4 63 150 2 8 52 54 9 25 21 8 49 44 9 28 33 -0.49 - 72 0 0 9 25 40 22 15 43.6 63 152 1 9 9 26 9 41 56 9 6 15 9 45 8 -0.49 - 71 0 0 9 42 37 22 15 52.8 63 154 0 9 26 21 9 58 56 9 23 10 10 2 8 -0.49 - 70 0 0 9 59 58 22 16 2.1 64 157 -1 9 43 41 10 16 18 9 40 29 10 19 30 -0.49 - 69 0 0 10 17 42 22 16 11.4 64 159 -2 10 1 23 10 34 4 9 58 12 10 37 17 -0.49 - 68 0 0 10 35 50 22 16 20.7 64 161 -3 10 19 29 10 52 13 10 16 17 10 55 26 -0.49 - 67 0 0 10 54 19 22 16 30.0 64 164 -4 10 37 57 11 10 44 10 34 44 11 13 58 -0.49 - 66 0 0 11 13 11 22 16 39.4 64 166 -5 10 56 47 11 29 38 10 53 34 11 32 52 -0.49 - 65 0 0 11 32 25 22 16 48.7 64 168 -6 11 15 59 11 48 53 11 12 46 11 52 8 -0.49 - 64 0 0 11 52 0 22 16 58.0 64 171 -7 11 35 32 12 8 30 11 32 18 12 11 44 -0.49 - 63 0 0 12 11 55 22 17 7.3 63 173 -8 11 55 26 12 28 27 11 52 12 12 31 42 -0.49 - 62 0 0 12 32 11 22 17 16.6 63 175 -9 12 15 40 12 48 45 12 12 26 12 52 0 -0.49 - 61 0 0 12 52 47 22 17 25.9 63 177 -10 12 36 14 13 9 23 12 33 0 13 12 38 -0.49 - 60 0 0 13 13 43 22 17 35.2 62 180 -12 12 57 8 13 30 20 12 53 53 13 33 36 -0.49 - 59 0 0 13 34 57 22 17 44.4 62 182 -13 13 18 20 13 51 36 13 15 5 13 54 52 -0.49 - 58 0 0 13 56 29 22 17 53.6 62 184 -14 13 39 51 14 13 10 13 36 36 14 16 27 -0.49 - 57 0 0 14 18 20 22 18 2.8 61 186 -15 14 1 40 14 35 2 13 58 24 14 38 19 -0.49 - 56 0 0 14 40 27 22 18 11.9 61 188 -16 14 23 46 14 57 12 14 20 30 15 0 29 -0.49 - 55 0 0 15 2 52 22 18 21.0 60 190 -17 14 46 8 15 19 38 14 42 52 15 22 55 -0.49 - 54 0 0 15 25 32 22 18 30.0 60 192 -18 15 8 47 15 42 20 15 5 30 15 45 37 -0.49 - 53 0 0 15 48 28 22 18 39.0 59 194 -19 15 31 41 16 5 17 15 28 24 16 8 35 -0.49 - 52 0 0 16 11 38 22 18 47.9 58 195 -20 15 54 50 16 28 29 15 51 33 16 31 48 -0.49 - 51 0 0 16 35 3 22 18 56.8 58 197 -21 16 18 14 16 51 56 16 14 56 16 55 14 -0.49 - 50 0 0 16 58 42 22 19 5.6 57 198 -22 16 41 51 17 15 36 16 38 33 17 18 55 -0.49 - 49 0 0 17 22 33 22 19 14.3 56 200 -23 17 5 40 17 39 28 17 2 22 17 42 48 -0.49 - 48 0 0 17 46 37 22 19 22.9 56 202 -24 17 29 43 18 3 33 17 26 24 18 6 53 -0.49 - 47 0 0 18 10 52 22 19 31.4 55 203 -25 17 53 56 18 27 50 17 50 38 18 31 10 -0.49 - 46 0 0 18 35 18 22 19 39.9 54 204 -26 18 18 21 18 52 17 18 15 2 18 55 37 -0.49 - 45 0 0 18 59 54 22 19 48.2 53 206 -27 18 42 56 19 16 54 18 39 36 19 20 15 -0.49 - 44 0 0 19 24 39 22 19 56.5 53 207 -28 19 7 40 19 41 41 19 4 20 19 45 2 -0.49 - 43 0 0 19 49 33 22 20 4.6 52 208 -29 19 32 33 20 6 37 19 29 13 20 9 57 -0.49 - 42 0 0 20 14 36 22 20 12.7 51 209 -30 19 57 34 20 31 40 19 54 14 20 35 1 -0.49 - 41 0 0 20 39 45 22 20 20.6 50 210 -31 20 22 42 20 56 50 20 19 22 21 0 12 -0.49 - 40 0 0 21 5 1 22 20 28.5 49 211 -32 20 47 57 21 22 7 20 44 37 21 25 29 -0.49 - 39 0 0 21 30 23 22 20 36.2 48 213 -33 21 13 18 21 47 30 21 9 57 21 50 52 -0.49 - 38 0 0 21 55 49 22 20 43.8 48 214 -34 21 38 44 22 12 58 21 35 23 22 16 20 -0.49 - 37 0 0 22 21 20 22 20 51.2 47 215 -35 22 4 14 22 38 30 22 0 53 22 41 52 -0.49 - 36 0 0 22 46 55 22 20 58.6 46 216 -36 22 29 48 23 4 5 22 26 27 23 7 27 -0.49 - 35 0 0 23 12 32 22 21 5.8 45 216 -37 22 55 24 23 29 43 22 52 3 23 33 5 -0.49 - 34 0 0 23 38 12 22 21 12.8 44 217 -38 23 21 3 23 55 23 23 17 42 23 58 45 -0.48 - 33 0 0 24 3 52 22 21 19.8 43 218 -39 23 46 43 24 21 4 23 43 22 24 24 27 -0.48 - 32 0 0 24 29 33 22 21 26.6 42 219 -40 24 12 24 24 46 46 24 9 2 24 50 8 -0.48 - 31 0 0 24 55 14 22 21 33.2 41 220 -41 24 38 4 25 12 27 24 34 42 25 15 50 -0.48 - 30 0 0 25 20 54 22 21 39.7 40 221 -42 25 3 44 25 38 7 25 0 22 25 41 30 -0.48 - 29 0 0 25 46 33 22 21 46.1 39 221 -43 25 29 22 26 3 46 25 26 0 26 7 9 -0.48 - 28 0 0 26 12 9 22 21 52.3 38 222 -44 25 54 57 26 29 22 25 51 36 26 32 45 -0.48 - 27 0 0 26 37 41 22 21 58.4 37 223 -45 26 20 30 26 54 55 26 17 8 26 58 18 -0.48 - 26 0 0 27 3 11 22 22 4.3 37 224 -46 26 45 59 27 20 25 26 42 37 27 23 48 -0.48 - 25 0 0 27 28 35 22 22 10.0 36 224 -46 27 11 24 27 45 49 27 8 2 27 49 12 -0.48 - 24 0 0 27 53 55 22 22 15.6 35 225 -47 27 36 44 28 11 9 27 33 22 28 14 32 -0.48 - 23 0 0 28 19 9 22 22 21.1 34 226 -48 28 1 57 28 36 23 27 58 36 28 39 46 -0.48 - 22 0 0 28 44 16 22 22 26.4 33 227 -49 28 27 5 29 1 30 28 23 43 29 4 53 -0.48 - 21 0 0 29 9 16 22 22 31.5 32 227 -50 28 52 6 29 26 30 28 48 44 29 29 53 -0.48 - 20 0 0 29 34 9 22 22 36.5 31 228 -51 29 16 58 29 51 22 29 13 37 29 54 45 -0.48 - 19 0 0 29 58 53 22 22 41.3 30 229 -51 29 41 43 30 16 6 29 38 21 30 19 29 -0.48 - 18 0 0 30 23 28 22 22 46.0 29 229 -52 30 6 19 30 40 41 30 2 57 30 44 3 -0.48 - 17 0 0 30 47 54 22 22 50.5 28 230 -53 30 30 45 31 5 6 30 27 24 31 8 29 -0.48 - 16 0 0 31 12 10 22 22 54.8 27 231 -54 30 55 2 31 29 21 30 51 40 31 32 44 -0.48 - 15 0 0 31 36 15 22 22 59.0 26 231 -54 31 19 8 31 53 26 31 15 46 31 56 48 -0.48 - 14 0 0 32 0 10 22 23 3.1 25 232 -55 31 43 2 32 17 19 31 39 41 32 20 42 -0.48 - 13 0 0 32 23 52 22 23 6.9 24 233 -56 32 6 46 32 41 1 32 3 25 32 44 23 -0.48 - 12 0 0 32 47 23 22 23 10.7 24 233 -56 32 30 17 33 4 31 32 26 57 33 7 53 -0.48 - 11 0 0 33 10 41 22 23 14.2 23 234 -57 32 53 36 33 27 48 32 50 16 33 31 10 -0.48 - 10 0 0 33 33 46 22 23 17.6 22 234 -58 33 16 42 33 50 52 33 13 22 33 54 14 -0.48 - 9 0 0 33 56 37 22 23 20.9 21 235 -58 33 39 35 34 13 43 33 36 14 34 17 4 -0.48 - 8 0 0 34 19 15 22 23 24.0 20 236 -59 34 2 13 34 36 19 33 58 53 34 39 40 -0.48 - 7 0 0 34 41 38 22 23 27.0 19 236 -59 34 24 38 34 58 42 34 21 18 35 2 2 -0.48 - 6 0 0 35 3 47 22 23 29.8 18 237 -60 34 46 48 35 20 49 34 43 28 35 24 10 -0.48 - 5 0 0 35 25 41 22 23 32.4 17 238 -60 35 8 43 35 42 42 35 5 24 35 46 2 -0.48 - 4 0 0 35 47 20 22 23 34.9 16 238 -61 35 30 23 36 4 19 35 27 4 36 7 39 -0.48 - 3 0 0 36 8 42 22 23 37.3 15 239 -61 35 51 47 36 25 41 35 48 28 36 29 0 -0.48 - 2 0 0 36 29 49 22 23 39.5 15 239 -62 36 12 55 36 46 46 36 9 37 36 50 6 -0.49 - 1 0 0 36 50 40 22 23 41.6 14 240 -62 36 33 47 37 7 36 36 30 29 37 10 55 -0.49 0 0 0 37 11 14 22 23 43.6 13 241 -62 36 54 23 37 28 8 36 51 5 37 31 27 -0.49 1 0 0 37 31 32 22 23 45.4 12 241 -63 37 14 42 37 48 24 37 11 24 37 51 43 -0.49 2 0 0 37 51 32 22 23 47.0 11 242 -63 37 34 44 38 8 23 37 31 26 38 11 42 -0.49 3 0 0 38 11 16 22 23 48.6 10 243 -63 37 54 28 38 28 5 37 51 11 38 31 23 -0.49 4 0 0 38 30 41 22 23 50.0 9 243 -63 38 13 56 38 47 29 38 10 39 38 50 47 -0.49 5 0 0 38 49 50 22 23 51.3 9 244 -64 38 33 6 39 6 36 38 29 49 39 9 54 -0.49 6 0 0 39 8 40 22 23 52.4 8 245 -64 38 51 58 39 25 25 38 48 41 39 28 42 -0.49 7 0 0 39 27 13 22 23 53.4 7 245 -64 39 10 32 39 43 56 39 7 16 39 47 13 -0.49 8 0 0 39 45 27 22 23 54.3 6 246 -64 39 28 48 40 2 9 39 25 32 40 5 25 -0.49 9 0 0 40 3 23 22 23 55.1 5 246 -64 39 46 46 40 20 3 39 43 30 40 23 20 -0.49 10 0 0 40 21 1 22 23 55.8 4 247 -64 40 4 25 40 37 40 40 1 10 40 40 56 -0.50 11 0 0 40 38 21 22 23 56.3 4 248 -64 40 21 46 40 54 57 40 18 32 40 58 13 -0.50 12 0 0 40 55 22 22 23 56.7 3 248 -64 40 38 49 41 11 57 40 35 35 41 15 12 -0.51 13 0 0 41 12 4 22 23 57.0 2 249 -64 40 55 33 41 28 37 40 52 19 41 31 52 -0.52 14 0 0 41 28 27 22 23 57.2 1 250 -64 41 11 58 41 44 59 41 8 44 41 48 14 -0.54 15 0 0 41 44 32 22 23 57.3 0 250 -64 41 28 5 42 1 2 41 24 51 42 4 17 -0.69 Uncertainty in time = +/- 5 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 378-170830 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 16 28.0363 DE: -14 26 30.607 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 16 28.0363 DE: -14 26 30.607 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3240) Laokoon asteroid class: approx. diameter [km]: 52 approx. diameter ["]: 0.016 distance from Earth [AU]: 4.39570 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 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): 0.019", 0.001", 70.431° remarks: * orbital elements for (3240)Laokoon : Mean anomaly = 13.0423084625 deg Arg. of pericenter = 16.3424718237 deg Long. of node = 296.2935085001 deg Inclination = 2.3369501703 deg Eccentricity = 0.1280166999 Semimajor axis = 5.2219125524 AU Perihelion dist = 4.5534205401 AU Mag: H = 10.33, G = 0.15 Epoch of elements : MJD 60253.92861111 TDT (2023 Nov 05.9286) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Oct09,4.06,2023,11,5,22.274627,-0.129691,0.422518,6.868529,2.106594,0.005772,0.001816,0.000000,0.000000 -59.5598,-14.3432,-158.22,-15.81,False UCAC4 378-170830,21.27445455,-14.4418353,0.00,11.86,0.00,0.0,0,,21.29620781,-14.3431827,5.76,0.00,0,0,0 3240,Laokoon,17.61,51.700,4.3957,0,0,0.946,4.21,,5.2,0 0,12.9656,2023,11,5,16.3425,296.2935,2.3370,0.12802,5.22191,4.55342,10.35,5.0,0.15 1.098,0.0193,0.0013,70,0.0194,Known errors,-1.00,0,-1,-1 20231105_170830,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org