IOTA/IOTA-ES occultation update for (40316) 1999 LU4 / UCAC4 367-087226 event on 2024 Sep 22, 22:31 UT Visible from Summary ------- On 2024 Sep 22 UT, the 8.871 km diameter asteroid (40316) 1999 LU4 will occult a 11.9 mag star in the constellation Ophiuchus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.50 mag to 18.41 mag (the magnitude of the asteroid) for at most 0.400 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 Sep 22, 22:26 - 2024 Sep 22, 22:36 * geocentric midpoint of event [JD]: 2460576.43846304 * magnitude of target star: 11.91 * magnitude drop [mag]: 6.50 * estimated maximum duration [s]: 0.400 * Moon: 69 % sunlit, 162° distance * Sun: 82° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 9 * 1 sigma uncertainty interval [path widths]: +/- 0.34 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.002", 117°) * approx speed of asteroid's shadow [km/s]: 22.4137 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 367-087226 by 40316 1999 LU4 on 2024 Sep 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 -155 0 0 34 49 46 22 26 40.5 0 110 55 34 47 11 34 52 20 34 45 27 34 54 5 .... -154 0 0 34 31 3 22 26 40.5 1 111 55 34 28 28 34 33 38 34 26 43 34 35 23 0.07 -153 0 0 34 11 47 22 26 40.6 2 112 55 34 9 12 34 14 22 34 7 26 34 16 8 -0.01 -152 0 0 33 51 58 22 26 40.8 3 112 56 33 49 22 33 54 34 33 47 37 33 56 20 -0.04 -151 0 0 33 31 36 22 26 41.0 4 113 56 33 28 59 33 34 12 33 27 13 33 35 58 -0.05 -150 0 0 33 10 40 22 26 41.4 5 113 56 33 8 3 33 13 17 33 6 17 33 15 3 -0.06 -149 0 0 32 49 10 22 26 41.8 5 114 56 32 46 33 32 51 48 32 44 46 32 53 35 -0.06 -148 0 0 32 27 7 22 26 42.2 6 114 56 32 24 29 32 29 45 32 22 42 32 31 32 -0.07 -147 0 0 32 4 29 22 26 42.8 7 115 56 32 1 51 32 7 8 32 0 3 32 8 56 -0.07 -146 0 0 31 41 18 22 26 43.4 8 115 56 31 38 38 31 43 57 31 36 51 31 45 45 -0.07 -145 0 0 31 17 31 22 26 44.1 9 116 56 31 14 52 31 20 11 31 13 4 31 21 59 -0.08 -144 0 0 30 53 11 22 26 44.9 10 116 56 30 50 31 30 55 51 30 48 42 30 57 40 -0.08 -143 0 0 30 28 16 22 26 45.8 11 117 56 30 25 35 30 30 57 30 23 46 30 32 46 -0.08 -142 0 0 30 2 46 22 26 46.7 12 117 56 30 0 4 30 5 27 29 58 15 30 7 17 -0.08 -141 0 0 29 36 41 22 26 47.8 13 118 56 29 33 59 29 39 23 29 32 10 29 41 13 -0.08 -140 0 0 29 10 2 22 26 48.9 14 118 56 29 7 19 29 12 45 29 5 29 29 14 35 -0.08 -139 0 0 28 42 48 22 26 50.1 15 119 56 28 40 5 28 45 31 28 38 14 28 47 22 -0.08 -138 0 0 28 14 59 22 26 51.5 16 119 55 28 12 16 28 17 43 28 10 25 28 19 34 -0.08 -137 0 0 27 46 36 22 26 52.9 17 120 55 27 43 52 27 49 20 27 42 0 27 51 12 -0.08 -136 0 0 27 17 38 22 26 54.4 18 120 55 27 14 53 27 20 23 27 13 1 27 22 15 -0.08 -135 0 0 26 48 6 22 26 56.0 19 121 55 26 45 20 26 50 51 26 43 28 26 52 43 -0.08 -134 0 0 26 17 59 22 26 57.7 20 121 55 26 15 13 26 20 45 26 13 20 26 22 38 -0.08 -133 0 0 25 47 18 22 26 59.5 21 122 54 25 44 31 25 50 5 25 42 38 25 51 58 -0.08 -132 0 0 25 16 3 22 27 1.5 22 122 54 25 13 16 25 18 51 25 11 23 25 20 44 -0.08 -131 0 0 24 44 15 22 27 3.5 23 123 53 24 41 27 24 47 3 24 39 33 24 48 57 -0.08 -130 0 0 24 11 53 22 27 5.6 24 123 53 24 9 5 24 14 42 24 7 11 24 16 36 -0.09 -129 0 0 23 38 59 22 27 7.9 25 123 53 23 36 10 23 41 48 23 34 15 23 43 42 -0.09 -128 0 0 23 5 31 22 27 10.2 26 124 52 23 2 42 23 8 21 23 0 47 23 10 16 -0.09 -127 0 0 22 31 32 22 27 12.7 27 124 52 22 28 42 22 34 22 22 26 47 22 36 17 -0.09 -126 0 0 21 57 1 22 27 15.2 29 125 51 21 54 11 21 59 52 21 52 15 22 1 47 -0.09 -125 0 0 21 21 59 22 27 17.9 30 125 51 21 19 8 21 24 50 21 17 12 21 26 46 -0.09 -124 0 0 20 46 27 22 27 20.7 31 126 50 20 43 35 20 49 18 20 41 39 20 51 15 -0.09 -123 0 0 20 10 25 22 27 23.6 32 126 50 20 7 33 20 13 17 20 5 36 20 15 13 -0.09 -122 0 0 19 33 53 22 27 26.7 33 126 49 19 31 1 19 36 46 19 29 4 19 38 43 -0.09 -121 0 0 18 56 54 22 27 29.8 34 127 48 18 54 1 18 59 47 18 52 3 19 1 44 -0.09 -120 0 0 18 19 27 22 27 33.0 35 127 48 18 16 33 18 22 20 18 14 36 18 24 18 -0.09 -119 0 0 17 41 33 22 27 36.4 36 127 47 17 38 39 17 44 27 17 36 41 17 46 25 -0.09 -118 0 0 17 3 14 22 27 39.9 38 128 46 17 0 19 17 6 8 16 58 21 17 8 6 -0.09 -117 0 0 16 24 30 22 27 43.5 39 128 46 16 21 35 16 27 24 16 19 37 16 29 23 -0.09 -116 0 0 15 45 22 22 27 47.2 40 129 45 15 42 27 15 48 17 15 40 28 15 50 16 -0.09 -115 0 0 15 5 52 22 27 51.0 41 129 44 15 2 56 15 8 47 15 0 57 15 10 46 -0.09 -114 0 0 14 26 0 22 27 54.9 42 129 43 14 23 4 14 28 56 14 21 5 14 30 55 -0.09 -113 0 0 13 45 48 22 27 59.0 44 130 42 13 42 52 13 48 44 13 40 53 13 50 44 -0.09 -112 0 0 13 5 18 22 28 3.1 45 130 42 13 2 21 13 8 14 13 0 22 13 10 14 -0.09 -111 0 0 12 24 29 22 28 7.4 46 130 41 12 21 33 12 27 26 12 19 33 12 29 26 -0.09 -110 0 0 11 43 25 22 28 11.8 47 131 40 11 40 28 11 46 22 11 38 28 11 48 21 -0.09 -109 0 0 11 2 5 22 28 16.2 48 131 39 10 59 9 11 5 2 10 57 9 11 7 2 -0.09 -108 0 0 10 20 33 22 28 20.8 49 131 38 10 17 36 10 23 30 10 15 35 10 25 30 -0.09 -107 0 0 9 38 48 22 28 25.5 51 132 37 9 35 51 9 41 45 9 33 50 9 43 45 -0.09 -106 0 0 8 56 53 22 28 30.2 52 132 36 8 53 55 8 59 50 8 51 55 9 1 50 -0.09 -105 0 0 8 14 48 22 28 35.1 53 132 35 8 11 51 8 17 46 8 9 51 8 19 46 -0.09 -104 0 0 7 32 37 22 28 40.0 54 133 35 7 29 39 7 35 34 7 27 39 7 37 35 -0.09 -103 0 0 6 50 20 22 28 45.1 56 133 34 6 47 22 6 53 17 6 45 22 6 55 18 -0.09 -102 0 0 6 7 58 22 28 50.2 57 134 33 6 5 1 6 10 56 6 3 0 6 12 56 -0.09 -101 0 0 5 25 34 22 28 55.4 58 134 32 5 22 37 5 28 32 5 20 36 5 30 32 -0.09 -100 0 0 4 43 9 22 29 0.6 59 134 31 4 40 12 4 46 7 4 38 11 4 48 7 -0.09 - 99 0 0 4 0 45 22 29 6.0 60 135 30 3 57 48 4 3 42 3 55 47 4 5 43 -0.09 - 98 0 0 3 18 23 22 29 11.4 62 135 29 3 15 26 3 21 20 3 13 26 3 23 21 -0.09 - 97 0 0 2 36 5 22 29 16.9 63 136 28 2 33 8 2 39 2 2 31 8 2 41 3 -0.09 - 96 0 0 1 53 53 22 29 22.4 64 136 27 1 50 56 1 56 50 1 48 56 1 58 50 -0.09 - 95 0 0 1 11 48 22 29 28.0 65 137 26 1 8 51 1 14 45 1 6 51 1 16 45 -0.10 - 94 0 0 0 29 52 22 29 33.6 67 138 25 0 26 55 0 32 48 0 24 56 0 34 48 -0.10 - 93 0 0 - 0 11 54 22 29 39.3 68 138 24 - 0 14 50 - 0 8 58 - 0 16 50 - 0 6 58 -0.10 - 92 0 0 - 0 53 28 22 29 45.0 69 139 23 - 0 56 24 - 0 50 32 - 0 58 23 - 0 48 33 -0.10 - 91 0 0 - 1 34 49 22 29 50.8 70 140 22 - 1 37 44 - 1 31 53 - 1 39 43 - 1 29 54 -0.10 - 90 0 0 - 2 15 54 22 29 56.6 71 141 21 - 2 18 50 - 2 12 59 - 2 20 48 - 2 11 0 -0.10 - 89 0 0 - 2 56 44 22 30 2.4 72 142 20 - 2 59 39 - 2 53 49 - 3 1 37 - 2 51 50 -0.10 - 88 0 0 - 3 37 15 22 30 8.2 74 143 19 - 3 40 10 - 3 34 20 - 3 42 8 - 3 32 22 -0.10 - 87 0 0 - 4 17 28 22 30 14.1 75 145 18 - 4 20 22 - 4 14 33 - 4 22 20 - 4 12 35 -0.10 - 86 0 0 - 4 57 20 22 30 20.0 76 147 16 - 5 0 13 - 4 54 26 - 5 2 11 - 4 52 28 -0.10 - 85 0 0 - 5 36 50 22 30 25.8 77 149 15 - 5 39 43 - 5 33 57 - 5 41 41 - 5 31 59 -0.10 - 84 0 0 - 6 15 57 22 30 31.7 78 151 14 - 6 18 50 - 6 13 4 - 6 20 48 - 6 11 7 -0.10 - 83 0 0 - 6 54 41 22 30 37.6 79 154 13 - 6 57 33 - 6 51 48 - 6 59 30 - 6 49 51 -0.10 - 82 0 0 - 7 32 59 22 30 43.5 80 157 12 - 7 35 51 - 7 30 7 - 7 37 47 - 7 28 10 -0.10 - 81 0 0 - 8 10 51 22 30 49.4 81 162 11 - 8 13 42 - 8 7 59 - 8 15 39 - 8 6 3 -0.10 - 80 0 0 - 8 48 16 22 30 55.2 82 167 10 - 8 51 6 - 8 45 25 - 8 53 2 - 8 43 29 -0.10 - 79 0 0 - 9 25 12 22 31 1.1 83 173 9 - 9 28 2 - 9 22 22 - 9 29 58 - 9 20 26 -0.10 - 78 0 0 -10 1 39 22 31 6.9 83 181 8 -10 4 29 - 9 58 50 -10 6 24 - 9 56 54 -0.10 - 77 0 0 -10 37 37 22 31 12.7 84 190 7 -10 40 26 -10 34 48 -10 42 21 -10 32 53 -0.10 - 76 0 0 -11 13 4 22 31 18.5 84 201 6 -11 15 52 -11 10 15 -11 17 47 -11 8 20 -0.10 - 75 0 0 -11 47 59 22 31 24.3 84 212 5 -11 50 47 -11 45 11 -11 52 41 -11 43 17 -0.10 - 74 0 0 -12 22 22 22 31 30.0 84 223 4 -12 25 9 -12 19 34 -12 27 3 -12 17 41 -0.10 - 73 0 0 -12 56 12 22 31 35.7 84 232 3 -12 58 59 -12 53 25 -13 0 52 -12 51 32 -0.10 - 72 0 0 -13 29 29 22 31 41.3 83 241 2 -13 32 15 -13 26 43 -13 34 8 -13 24 50 -0.10 - 71 0 0 -14 2 12 22 31 46.9 82 248 1 -14 4 58 -13 59 26 -14 6 50 -13 57 34 -0.10 - 70 0 0 -14 34 21 22 31 52.5 82 254 0 -14 37 6 -14 31 36 -14 38 58 -14 29 44 -0.10 - 69 0 0 -15 5 55 22 31 58.0 81 258 -1 -15 8 39 -15 3 10 -15 10 31 -15 1 18 -0.10 - 68 0 0 -15 36 53 22 32 3.5 80 262 -2 -15 39 37 -15 34 9 -15 41 29 -15 32 18 -0.10 - 67 0 0 -16 7 17 22 32 8.9 79 265 -3 -16 10 0 -16 4 33 -16 11 51 -16 2 42 -0.10 - 66 0 0 -16 37 4 22 32 14.3 78 268 -4 -16 39 47 -16 34 21 -16 41 37 -16 32 31 -0.11 - 65 0 0 -17 6 15 22 32 19.6 77 270 -5 -17 8 57 -17 3 33 -17 10 47 -17 1 43 -0.11 - 64 0 0 -17 34 50 22 32 24.9 76 271 -6 -17 37 32 -17 32 9 -17 39 21 -17 30 19 -0.11 - 63 0 0 -18 2 49 22 32 30.1 75 273 -7 -18 5 30 -18 0 8 -18 7 19 -17 58 18 -0.11 - 62 0 0 -18 30 10 22 32 35.2 74 274 -8 -18 32 51 -18 27 30 -18 34 40 -18 25 41 -0.11 - 61 0 0 -18 56 56 22 32 40.3 73 275 -9 -18 59 35 -18 54 16 -19 1 24 -18 52 27 -0.11 - 60 0 0 -19 23 4 22 32 45.4 72 275 -9 -19 25 43 -19 20 24 -19 27 31 -19 18 37 -0.11 - 59 0 0 -19 48 35 22 32 50.4 71 276 -10 -19 51 14 -19 45 56 -19 53 1 -19 44 9 -0.11 - 58 0 0 -20 13 29 22 32 55.3 70 277 -11 -20 16 7 -20 10 51 -20 17 55 -20 9 4 -0.11 - 57 0 0 -20 37 47 22 33 0.1 69 277 -12 -20 40 24 -20 35 9 -20 42 11 -20 33 22 -0.11 - 56 0 0 -21 1 27 22 33 4.9 68 277 -13 -21 4 4 -20 58 50 -21 5 50 -20 57 4 -0.11 - 55 0 0 -21 24 30 22 33 9.7 67 278 -14 -21 27 7 -21 21 54 -21 28 53 -21 20 8 -0.11 - 54 0 0 -21 46 57 22 33 14.3 66 278 -15 -21 49 33 -21 44 21 -21 51 18 -21 42 35 -0.11 - 53 0 0 -22 8 47 22 33 18.9 65 278 -16 -22 11 22 -22 6 11 -22 13 7 -22 4 26 -0.11 - 52 0 0 -22 30 0 22 33 23.5 64 278 -17 -22 32 35 -22 27 25 -22 34 19 -22 25 40 -0.11 - 51 0 0 -22 50 36 22 33 28.0 63 278 -18 -22 53 10 -22 48 2 -22 54 55 -22 46 17 -0.11 - 50 0 0 -23 10 36 22 33 32.4 62 278 -19 -23 13 10 -23 8 2 -23 14 54 -23 6 18 -0.11 - 49 0 0 -23 29 59 22 33 36.7 61 278 -19 -23 32 33 -23 27 26 -23 34 17 -23 25 42 -0.11 - 48 0 0 -23 48 47 22 33 41.0 60 278 -20 -23 51 19 -23 46 14 -23 53 3 -23 44 30 -0.11 - 47 0 0 -24 6 58 22 33 45.2 59 278 -21 -24 9 30 -24 4 25 -24 11 13 -24 2 42 -0.11 - 46 0 0 -24 24 33 22 33 49.4 58 278 -22 -24 27 5 -24 22 1 -24 28 48 -24 20 18 -0.11 - 45 0 0 -24 41 32 22 33 53.5 57 277 -23 -24 44 4 -24 39 1 -24 45 46 -24 37 18 -0.11 - 44 0 0 -24 57 56 22 33 57.5 56 277 -24 -25 0 27 -24 55 25 -25 2 9 -24 53 42 -0.11 - 43 0 0 -25 13 44 22 34 1.5 56 277 -25 -25 16 14 -25 11 13 -25 17 57 -25 9 31 -0.11 - 42 0 0 -25 28 57 22 34 5.4 55 277 -25 -25 31 27 -25 26 26 -25 33 9 -25 24 44 -0.11 - 41 0 0 -25 43 34 22 34 9.2 54 277 -26 -25 46 4 -25 41 4 -25 47 46 -25 39 23 -0.11 - 40 0 0 -25 57 37 22 34 13.0 53 276 -27 -26 0 6 -25 55 7 -26 1 48 -25 53 26 -0.11 - 39 0 0 -26 11 4 22 34 16.7 52 276 -28 -26 13 34 -26 8 35 -26 15 15 -26 6 54 -0.11 - 38 0 0 -26 23 58 22 34 20.3 51 276 -29 -26 26 26 -26 21 29 -26 28 7 -26 19 48 -0.11 - 37 0 0 -26 36 16 22 34 23.9 50 275 -30 -26 38 45 -26 33 48 -26 40 25 -26 32 7 -0.11 - 36 0 0 -26 48 1 22 34 27.4 49 275 -30 -26 50 29 -26 45 32 -26 52 9 -26 43 52 -0.11 - 35 0 0 -26 59 11 22 34 30.9 48 275 -31 -27 1 38 -26 56 43 -27 3 19 -26 55 3 -0.11 - 34 0 0 -27 9 47 22 34 34.3 47 274 -32 -27 12 14 -27 7 19 -27 13 54 -27 5 39 -0.11 - 33 0 0 -27 19 49 22 34 37.6 46 274 -33 -27 22 16 -27 17 22 -27 23 56 -27 15 42 -0.11 - 32 0 0 -27 29 18 22 34 40.9 45 274 -34 -27 31 45 -27 26 51 -27 33 24 -27 25 11 -0.11 - 31 0 0 -27 38 13 22 34 44.1 44 273 -34 -27 40 39 -27 35 46 -27 42 19 -27 34 7 -0.11 - 30 0 0 -27 46 34 22 34 47.3 44 273 -35 -27 49 1 -27 44 8 -27 50 40 -27 42 29 -0.11 - 29 0 0 -27 54 23 22 34 50.3 43 273 -36 -27 56 49 -27 51 56 -27 58 28 -27 50 17 -0.11 - 28 0 0 -28 1 38 22 34 53.4 42 272 -37 -28 4 4 -27 59 12 -28 5 43 -27 57 33 -0.11 - 27 0 0 -28 8 20 22 34 56.3 41 272 -37 -28 10 46 -28 5 54 -28 12 25 -28 4 15 -0.11 - 26 0 0 -28 14 30 22 34 59.2 40 271 -38 -28 16 55 -28 12 4 -28 18 34 -28 10 25 -0.11 - 25 0 0 -28 20 6 22 35 2.1 39 271 -39 -28 22 32 -28 17 41 -28 24 10 -28 16 2 -0.11 - 24 0 0 -28 25 10 22 35 4.9 38 270 -40 -28 27 35 -28 22 45 -28 29 14 -28 21 6 -0.11 - 23 0 0 -28 29 41 22 35 7.6 37 270 -40 -28 32 7 -28 27 16 -28 33 45 -28 25 38 -0.11 - 22 0 0 -28 33 40 22 35 10.3 36 270 -41 -28 36 5 -28 31 15 -28 37 44 -28 29 37 -0.10 - 21 0 0 -28 37 7 22 35 12.9 35 269 -42 -28 39 32 -28 34 42 -28 41 10 -28 33 3 -0.10 - 20 0 0 -28 40 1 22 35 15.4 35 269 -43 -28 42 26 -28 37 36 -28 44 4 -28 35 57 -0.10 - 19 0 0 -28 42 22 22 35 17.9 34 268 -43 -28 44 47 -28 39 58 -28 46 26 -28 38 19 -0.10 - 18 0 0 -28 44 12 22 35 20.4 33 268 -44 -28 46 37 -28 41 47 -28 48 15 -28 40 9 -0.10 - 17 0 0 -28 45 30 22 35 22.7 32 267 -45 -28 47 54 -28 43 5 -28 49 33 -28 41 27 -0.10 - 16 0 0 -28 46 15 22 35 25.0 31 267 -46 -28 48 40 -28 43 50 -28 50 18 -28 42 12 -0.10 - 15 0 0 -28 46 28 22 35 27.3 30 267 -46 -28 48 53 -28 44 3 -28 50 31 -28 42 25 -0.10 - 14 0 0 -28 46 9 22 35 29.5 29 266 -47 -28 48 34 -28 43 45 -28 50 12 -28 42 6 -0.10 - 13 0 0 -28 45 19 22 35 31.6 28 266 -48 -28 47 43 -28 42 54 -28 49 21 -28 41 15 -0.10 - 12 0 0 -28 43 56 22 35 33.7 28 265 -49 -28 46 20 -28 41 31 -28 47 59 -28 39 53 -0.10 - 11 0 0 -28 42 1 22 35 35.7 27 265 -49 -28 44 26 -28 39 36 -28 46 4 -28 37 58 -0.10 - 10 0 0 -28 39 34 22 35 37.7 26 264 -50 -28 41 59 -28 37 9 -28 43 37 -28 35 31 -0.10 - 9 0 0 -28 36 35 22 35 39.6 25 264 -51 -28 39 0 -28 34 10 -28 40 38 -28 32 32 -0.10 - 8 0 0 -28 33 4 22 35 41.4 24 263 -51 -28 35 29 -28 30 39 -28 37 8 -28 29 0 -0.10 - 7 0 0 -28 29 1 22 35 43.2 23 263 -52 -28 31 26 -28 26 36 -28 33 5 -28 24 57 -0.10 - 6 0 0 -28 24 26 22 35 44.9 22 262 -53 -28 26 51 -28 22 0 -28 28 30 -28 20 22 -0.10 - 5 0 0 -28 19 18 22 35 46.5 21 262 -53 -28 21 44 -28 16 53 -28 23 23 -28 15 14 -0.10 - 4 0 0 -28 13 39 22 35 48.1 20 261 -54 -28 16 5 -28 11 13 -28 17 43 -28 9 34 -0.10 - 3 0 0 -28 7 27 22 35 49.7 20 261 -55 -28 9 53 -28 5 1 -28 11 32 -28 3 22 -0.10 - 2 0 0 -28 0 43 22 35 51.1 19 261 -55 -28 3 9 -27 58 17 -28 4 48 -27 56 38 -0.10 - 1 0 0 -27 53 26 22 35 52.5 18 260 -56 -27 55 53 -27 51 0 -27 57 32 -27 49 21 -0.10 0 0 0 -27 45 38 22 35 53.9 17 260 -57 -27 48 4 -27 43 11 -27 49 43 -27 41 32 -0.10 1 0 0 -27 37 16 22 35 55.1 16 259 -57 -27 39 43 -27 34 49 -27 41 22 -27 33 10 -0.10 2 0 0 -27 28 22 22 35 56.4 15 259 -58 -27 30 49 -27 25 55 -27 32 28 -27 24 15 -0.10 3 0 0 -27 18 55 22 35 57.5 14 258 -59 -27 21 22 -27 16 28 -27 23 2 -27 14 48 -0.10 4 0 0 -27 8 56 22 35 58.6 13 258 -59 -27 11 23 -27 6 28 -27 13 3 -27 4 48 -0.10 5 0 0 -26 58 23 22 35 59.6 12 257 -60 -27 0 51 -26 55 55 -27 2 31 -26 54 15 -0.10 6 0 0 -26 47 18 22 36 0.5 11 257 -60 -26 49 46 -26 44 50 -26 51 26 -26 43 9 -0.10 7 0 0 -26 35 39 22 36 1.4 10 257 -61 -26 38 7 -26 33 11 -26 39 48 -26 31 30 -0.10 8 0 0 -26 23 27 22 36 2.2 10 256 -61 -26 25 56 -26 20 59 -26 27 37 -26 19 18 -0.10 9 0 0 -26 10 42 22 36 2.9 9 256 -62 -26 13 11 -26 8 14 -26 14 52 -26 6 33 -0.09 10 0 0 -25 57 24 22 36 3.6 8 255 -63 -25 59 53 -25 54 55 -26 1 35 -25 53 14 -0.09 11 0 0 -25 43 32 22 36 4.2 7 255 -63 -25 46 2 -25 41 3 -25 47 43 -25 39 21 -0.09 12 0 0 -25 29 7 22 36 4.7 6 254 -64 -25 31 37 -25 26 37 -25 33 18 -25 24 55 -0.09 13 0 0 -25 14 8 22 36 5.1 5 254 -64 -25 16 38 -25 11 37 -25 18 20 -25 9 55 -0.09 14 0 0 -24 58 35 22 36 5.5 4 253 -64 -25 1 5 -24 56 4 -25 2 48 -24 54 22 -0.09 15 0 0 -24 42 28 22 36 5.8 3 253 -65 -24 44 59 -24 39 57 -24 46 41 -24 38 14 -0.08 16 0 0 -24 25 47 22 36 6.0 2 253 -65 -24 28 19 -24 23 16 -24 30 1 -24 21 33 -0.07 17 0 0 -24 8 32 22 36 6.2 1 252 -66 -24 11 4 -24 6 0 -24 12 47 -24 4 17 -0.05 18 0 0 -23 50 43 22 36 6.2 0 252 -66 -23 53 16 -23 48 11 -23 54 59 -23 46 28 0.26 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 367-087226 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 26 17.4002 DE: -16 38 27.061 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 26 17.4002 DE: -16 38 27.060 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (40316) 1999 LU4 asteroid class: approx. diameter [km]: 9 approx. diameter ["]: 0.006 distance from Earth [AU]: 1.97420 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#38 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): 0.018", 0.002", 117.05° remarks: * orbital elements for (40316)1999 LU4 : Mean anomaly = 307.7744783015 deg Arg. of pericenter = 243.0148511645 deg Long. of node = 125.3223500545 deg Inclination = 23.0789105843 deg Eccentricity = 0.2493169681 Semimajor axis = 2.3276402443 AU Perihelion dist = 1.7473200358 AU Mag: H = 14.08, G = 0.15 Epoch of elements : MJD 60575.93846300 TDT (2024 Sep 22.9385) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#382023Apr25,0.40,2024,9,22,22.523113,0.051422,0.087529,10.890238,-6.438081,0.005248,-0.000216,0.000000,0.000000 -78.1919,-16.6625,-159.75,-0.16,False UCAC4 367-087226,17.43816675,-16.6408502,12.72,11.91,11.47,0.0,0,,17.46189292,-16.6624945,6.50,6.49,0,0,0 40316,1999 LU4,18.41,8.871,1.9742,0,0,3.377,-28.67,,0.8,0 0,307.5140,2024,9,22,243.0149,125.3224,23.0789,0.24932,2.32764,1.74732,14.08,5.0,0.15 1.339,0.0177,0.0018,117,0.0021,Known errors,1.02,0,-1,-1 20240922_087226,60140.58 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:54 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org