IOTA/IOTA-ES occultation update for 2005 LB54 / UCAC4 336-117034 event on 2023 May 27, 08:33 UT Visible from Summary ------- On 2023 May 27 UT, the 229.1 km diameter asteroid 2005 LB54 will occult a 12.5 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 9.59 mag to 22.05 mag (the magnitude of the asteroid) for at most 10.270 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: 3 * date and approx. time of event: 2023 May 27, 08:30 - 2023 May 27, 08:40 * geocentric midpoint of event [JD]: 2460091.85787308 * magnitude of target star: 12.46 * magnitude drop [mag]: 9.59 * estimated maximum duration [s]: 10.270 * Moon: 48 % sunlit, 115° distance * Sun: 157° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 239 * 1 sigma uncertainty interval [path widths]: +/- 19.65 * 1 sigma uncertainty interval [seconds]: +/- 998.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.751, +/- 0.153) * 1 sigma uncertainty ellipse (major, minor, PA): (0.752", 0.147", 93°) * approx speed of asteroid's shadow [km/s]: 22.3071 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 336-117034 by 0 2005 LB54 on 2023 May 27 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 171 0 0 14 54 23 8 39 54.5 1 114 -22 16 5 31 13 43 43 .. .. .. -31 48 28 .... 172 0 0 14 28 38 8 39 54.4 2 114 -23 15 39 45 13 18 0 .. .. .. -32 12 53 -0.13 173 0 0 14 2 55 8 39 54.2 3 115 -24 15 13 59 12 52 20 .. .. .. -32 37 7 -0.19 174 0 0 13 37 15 8 39 53.9 4 115 -26 14 48 16 12 26 42 .. .. .. -33 1 10 -0.22 175 0 0 13 11 38 8 39 53.4 5 115 -27 14 22 37 12 1 7 .. .. .. -33 25 1 -0.24 176 0 0 12 46 5 8 39 52.9 6 115 -28 13 57 0 11 35 37 .. .. .. -33 48 39 -0.25 177 0 0 12 20 36 8 39 52.3 7 115 -29 13 31 29 11 10 12 .. .. .. -34 12 4 -0.26 178 0 0 11 55 13 8 39 51.5 8 116 -30 13 6 2 10 44 52 .. .. .. -34 35 16 -0.26 179 0 0 11 29 55 8 39 50.7 9 116 -31 12 40 40 10 19 38 .. .. .. -34 58 14 -0.27 -180 0 0 11 4 44 8 39 49.8 10 116 -32 12 15 26 9 54 31 .. .. .. -35 20 57 -0.27 -179 0 0 10 39 40 8 39 48.7 11 116 -33 11 50 17 9 29 31 .. .. .. -35 43 27 -0.27 -178 0 0 10 14 44 8 39 47.6 12 116 -34 11 25 17 9 4 39 .. .. .. -36 5 41 -0.27 -177 0 0 9 49 56 8 39 46.4 13 117 -35 11 0 25 8 39 55 .. .. .. -36 27 40 -0.28 -176 0 0 9 25 17 8 39 45.0 15 117 -36 10 35 41 8 15 21 .. .. .. -36 49 24 -0.28 -175 0 0 9 0 48 8 39 43.6 16 117 -37 10 11 7 7 50 57 .. .. .. -37 10 52 -0.28 -174 0 0 8 36 29 8 39 42.1 17 117 -38 9 46 42 7 26 42 .. .. .. -37 32 3 -0.28 -173 0 0 8 12 20 8 39 40.4 18 117 -39 9 22 29 7 2 39 .. .. .. -37 52 58 -0.28 -172 0 0 7 48 23 8 39 38.7 19 118 -40 8 58 26 6 38 47 .. .. .. -38 13 37 -0.28 -171 0 0 7 24 37 8 39 36.9 20 118 -41 8 34 35 6 15 6 .. .. .. -38 33 58 -0.28 -170 0 0 7 1 4 8 39 35.0 21 118 -42 8 10 56 5 51 38 .. .. .. -38 54 3 -0.28 -169 0 0 6 37 43 8 39 33.0 22 118 -43 7 47 29 5 28 24 .. .. .. -39 13 50 -0.28 -168 0 0 6 14 36 8 39 30.9 23 118 -44 7 24 16 5 5 22 .. .. .. -39 33 19 -0.29 -167 0 0 5 51 42 8 39 28.7 24 118 -45 7 1 17 4 42 35 .. .. .. -39 52 31 -0.29 -166 0 0 5 29 3 8 39 26.4 25 119 -46 6 38 32 4 20 1 .. .. .. -40 11 25 -0.29 -165 0 0 5 6 39 8 39 24.1 26 119 -47 6 16 1 3 57 43 .. .. .. -40 30 0 -0.29 -164 0 0 4 44 30 8 39 21.6 27 119 -48 5 53 46 3 35 40 .. .. .. -40 48 18 -0.29 -163 0 0 4 22 36 8 39 19.1 28 119 -49 5 31 46 3 13 53 .. .. .. -41 6 17 -0.29 -162 0 0 4 0 59 8 39 16.5 29 119 -50 5 10 2 2 52 22 .. .. .. -41 23 58 -0.29 -161 0 0 3 39 38 8 39 13.8 30 119 -51 4 48 35 2 31 7 .. .. .. -41 41 20 -0.29 -160 0 0 3 18 34 8 39 11.0 31 120 -52 4 27 25 2 10 10 .. .. .. -41 58 24 -0.29 -159 0 0 2 57 48 8 39 8.1 32 120 -53 4 6 31 1 49 29 .. .. .. -42 15 8 -0.29 -158 0 0 2 37 19 8 39 5.2 33 120 -54 3 45 56 1 29 7 .. .. .. -42 31 34 -0.29 -157 0 0 2 17 8 8 39 2.2 34 120 -55 3 25 38 1 9 2 .. .. .. -42 47 41 -0.29 -156 0 0 1 57 15 8 38 59.1 35 120 -56 3 5 39 0 49 16 .. .. .. -43 3 30 -0.29 -155 0 0 1 37 41 8 38 55.9 36 120 -57 2 45 59 0 29 49 .. .. .. -43 18 59 -0.29 -154 0 0 1 18 26 8 38 52.7 37 121 -58 2 26 37 0 10 40 .. .. .. -43 34 9 -0.29 -153 0 0 0 59 31 8 38 49.4 38 121 -59 2 7 35 - 0 8 9 .. .. .. -43 49 0 -0.29 -152 0 0 0 40 55 8 38 46.0 39 121 -60 1 48 53 - 0 26 38 .. .. .. -44 3 32 -0.29 -151 0 0 0 22 39 8 38 42.6 40 121 -60 1 30 30 - 0 44 48 .. .. .. -44 17 46 -0.29 -150 0 0 0 4 43 8 38 39.1 41 121 -61 1 12 28 - 1 2 37 .. .. .. -44 31 40 -0.29 -149 0 0 - 0 12 52 8 38 35.5 42 122 -62 0 54 46 - 1 20 6 .. .. .. -44 45 15 -0.29 -148 0 0 - 0 30 7 8 38 31.9 43 122 -63 0 37 25 - 1 37 15 .. .. .. -44 58 31 -0.29 -147 0 0 - 0 47 1 8 38 28.2 44 122 -64 0 20 25 - 1 54 2 .. .. .. -45 11 28 -0.29 -146 0 0 - 1 3 33 8 38 24.5 45 122 -65 0 3 46 - 2 10 29 .. .. .. -45 24 6 -0.29 -145 0 0 - 1 19 44 8 38 20.7 46 123 -65 - 0 12 31 - 2 26 34 .. .. .. -45 36 25 -0.29 -144 0 0 - 1 35 34 8 38 16.8 47 123 -66 - 0 28 27 - 2 42 17 .. .. .. -45 48 25 -0.29 -143 0 0 - 1 51 2 8 38 12.9 48 123 -67 - 0 44 1 - 2 57 39 .. .. .. -46 0 7 -0.29 -142 0 0 - 2 6 7 8 38 8.9 49 124 -68 - 0 59 12 - 3 12 39 .. .. .. -46 11 29 -0.29 -141 0 0 - 2 20 51 8 38 4.9 50 124 -68 - 1 14 2 - 3 27 17 .. .. .. -46 22 33 -0.29 -140 0 0 - 2 35 13 8 38 0.9 51 125 -69 - 1 28 29 - 3 41 33 .. .. .. -46 33 18 -0.29 -139 0 0 - 2 49 11 8 37 56.7 52 125 -70 - 1 42 34 - 3 55 26 .. .. .. -46 43 44 -0.29 -138 0 0 - 3 2 48 8 37 52.6 53 125 -70 - 1 56 16 - 4 8 57 .. .. .. -46 53 51 -0.29 -137 0 0 - 3 16 1 8 37 48.4 54 126 -71 - 2 9 34 - 4 22 5 .. .. .. -47 3 40 -0.29 -136 0 0 - 3 28 52 8 37 44.2 55 126 -71 - 2 22 30 - 4 34 50 .. .. .. -47 13 10 -0.29 -135 0 0 - 3 41 19 8 37 39.9 56 127 -72 - 2 35 3 - 4 47 13 .. .. .. -47 22 22 -0.29 -134 0 0 - 3 53 24 8 37 35.6 57 128 -72 - 2 47 13 - 4 59 12 .. .. .. -47 31 15 -0.29 -133 0 0 - 4 5 5 8 37 31.2 58 128 -73 - 2 58 59 - 5 10 49 .. .. .. -47 39 50 -0.29 -132 0 0 - 4 16 23 8 37 26.8 58 129 -73 - 3 10 22 - 5 22 2 .. .. .. -47 48 6 -0.29 -131 0 0 - 4 27 17 8 37 22.4 59 130 -73 - 3 21 21 - 5 32 52 .. .. .. -47 56 5 -0.29 -130 0 0 - 4 37 48 8 37 17.9 60 130 -73 - 3 31 56 - 5 43 18 .. .. .. -48 3 45 -0.29 -129 0 0 - 4 47 56 8 37 13.4 61 131 -73 - 3 42 8 - 5 53 21 .. .. .. -48 11 6 -0.29 -128 0 0 - 4 57 39 8 37 8.9 62 132 -74 - 3 51 56 - 6 3 0 .. .. .. -48 18 10 -0.29 -127 0 0 - 5 6 59 8 37 4.4 63 133 -74 - 4 1 20 - 6 12 16 .. .. .. -48 24 55 -0.29 -126 0 0 - 5 15 55 8 36 59.8 63 134 -73 - 4 10 20 - 6 21 8 .. .. .. -48 31 23 -0.29 -125 0 0 - 5 24 27 8 36 55.2 64 135 -73 - 4 18 55 - 6 29 36 .. .. .. -48 37 32 -0.29 -124 0 0 - 5 32 35 8 36 50.6 65 136 -73 - 4 27 7 - 6 37 41 .. .. .. -48 43 24 -0.29 -123 0 0 - 5 40 19 8 36 45.9 66 138 -73 - 4 34 54 - 6 45 22 .. .. .. -48 48 58 -0.29 -122 0 0 - 5 47 39 8 36 41.2 67 139 -73 - 4 42 18 - 6 52 38 .. .. .. -48 54 14 -0.29 -121 0 0 - 5 54 35 8 36 36.5 67 140 -72 - 4 49 16 - 6 59 31 .. .. .. -48 59 12 -0.29 -120 0 0 - 6 1 6 8 36 31.8 68 142 -72 - 4 55 51 - 7 6 0 .. .. .. -49 3 52 -0.29 -119 0 0 - 6 7 14 8 36 27.1 69 144 -72 - 5 2 1 - 7 12 4 .. .. .. -49 8 15 -0.29 -118 0 0 - 6 12 57 8 36 22.4 69 145 -71 - 5 7 47 - 7 17 45 .. .. .. -49 12 20 -0.29 -117 0 0 - 6 18 15 8 36 17.6 70 147 -71 - 5 13 8 - 7 23 1 .. .. .. -49 16 7 -0.29 -116 0 0 - 6 23 10 8 36 12.8 70 149 -70 - 5 18 5 - 7 27 54 .. .. .. -49 19 37 -0.29 -115 0 0 - 6 27 40 8 36 8.0 71 152 -69 - 5 22 37 - 7 32 22 .. .. .. -49 22 49 -0.29 -114 0 0 - 6 31 46 8 36 3.2 72 154 -69 - 5 26 45 - 7 36 26 .. .. .. -49 25 44 -0.29 -113 0 0 - 6 35 27 8 35 58.4 72 157 -68 - 5 30 28 - 7 40 5 .. .. .. -49 28 21 -0.29 -112 0 0 - 6 38 44 8 35 53.6 72 159 -67 - 5 33 46 - 7 43 21 .. .. .. -49 30 41 -0.29 -111 0 0 - 6 41 37 8 35 48.7 73 162 -67 - 5 36 40 - 7 46 12 .. .. .. -49 32 44 -0.29 -110 0 0 - 6 44 5 8 35 43.9 73 165 -66 - 5 39 9 - 7 48 39 .. .. .. -49 34 29 -0.29 -109 0 0 - 6 46 8 8 35 39.1 73 168 -65 - 5 41 14 - 7 50 42 .. .. .. -49 35 56 -0.29 -108 0 0 - 6 47 48 8 35 34.2 74 171 -65 - 5 42 54 - 7 52 20 .. .. .. -49 37 7 -0.29 -107 0 0 - 6 49 2 8 35 29.4 74 174 -64 - 5 44 9 - 7 53 34 .. .. .. -49 37 59 -0.29 -106 0 0 - 6 49 52 8 35 24.5 74 177 -63 - 5 44 59 - 7 54 24 .. .. .. -49 38 35 -0.29 -105 0 0 - 6 50 18 8 35 19.7 74 180 -62 - 5 45 25 - 7 54 49 .. .. .. -49 38 53 -0.29 -104 0 0 - 6 50 19 8 35 14.8 74 184 -61 - 5 45 26 - 7 54 50 .. .. .. -49 38 54 -0.29 -103 0 0 - 6 49 56 8 35 10.0 74 187 -61 - 5 45 3 - 7 54 27 .. .. .. -49 38 37 -0.29 -102 0 0 - 6 49 8 8 35 5.1 74 190 -60 - 5 44 15 - 7 53 40 .. .. .. -49 38 3 -0.29 -101 0 0 - 6 47 56 8 35 0.3 73 193 -59 - 5 43 2 - 7 52 28 .. .. .. -49 37 12 -0.29 -100 0 0 - 6 46 19 8 34 55.4 73 196 -58 - 5 41 24 - 7 50 52 .. .. .. -49 36 3 -0.29 - 99 0 0 - 6 44 17 8 34 50.6 73 199 -57 - 5 39 22 - 7 48 52 .. .. .. -49 34 37 -0.29 - 98 0 0 - 6 41 52 8 34 45.8 72 202 -56 - 5 36 55 - 7 46 27 .. .. .. -49 32 54 -0.29 - 97 0 0 - 6 39 1 8 34 40.9 72 204 -55 - 5 34 4 - 7 43 38 .. .. .. -49 30 53 -0.29 - 96 0 0 - 6 35 47 8 34 36.1 71 207 -55 - 5 30 47 - 7 40 25 .. .. .. -49 28 35 -0.29 - 95 0 0 - 6 32 8 8 34 31.3 71 209 -54 - 5 27 7 - 7 36 47 .. .. .. -49 25 59 -0.29 - 94 0 0 - 6 28 4 8 34 26.5 70 211 -53 - 5 23 1 - 7 32 46 .. .. .. -49 23 6 -0.29 - 93 0 0 - 6 23 36 8 34 21.8 70 213 -52 - 5 18 31 - 7 28 20 .. .. .. -49 19 55 -0.29 - 92 0 0 - 6 18 44 8 34 17.0 69 215 -51 - 5 13 37 - 7 23 30 .. .. .. -49 16 27 -0.29 - 91 0 0 - 6 13 27 8 34 12.3 69 217 -50 - 5 8 18 - 7 18 15 .. .. .. -49 12 41 -0.29 - 90 0 0 - 6 7 46 8 34 7.5 68 219 -49 - 5 2 34 - 7 12 37 .. .. .. -49 8 38 -0.29 - 89 0 0 - 6 1 41 8 34 2.8 67 220 -48 - 4 56 26 - 7 6 35 .. .. .. -49 4 17 -0.29 - 88 0 0 - 5 55 12 8 33 58.2 66 222 -47 - 4 49 54 - 7 0 8 .. .. .. -48 59 38 -0.29 - 87 0 0 - 5 48 18 8 33 53.5 66 223 -46 - 4 42 57 - 6 53 18 .. .. .. -48 54 42 -0.29 - 86 0 0 - 5 41 1 8 33 48.8 65 224 -45 - 4 35 36 - 6 46 3 .. .. .. -48 49 27 -0.29 - 85 0 0 - 5 33 19 8 33 44.2 64 226 -44 - 4 27 51 - 6 38 25 .. .. .. -48 43 55 -0.29 - 84 0 0 - 5 25 13 8 33 39.6 63 227 -44 - 4 19 42 - 6 30 22 .. .. .. -48 38 5 -0.29 - 83 0 0 - 5 16 43 8 33 35.1 63 228 -43 - 4 11 8 - 6 21 56 .. .. .. -48 31 57 -0.29 - 82 0 0 - 5 7 49 8 33 30.5 62 229 -42 - 4 2 10 - 6 13 6 .. .. .. -48 25 31 -0.29 - 81 0 0 - 4 58 32 8 33 26.0 61 229 -41 - 3 52 48 - 6 3 52 .. .. .. -48 18 48 -0.29 - 80 0 0 - 4 48 50 8 33 21.5 60 230 -40 - 3 43 3 - 5 54 15 .. .. .. -48 11 46 -0.29 - 79 0 0 - 4 38 45 8 33 17.1 59 231 -39 - 3 32 53 - 5 44 14 .. .. .. -48 4 25 -0.29 - 78 0 0 - 4 28 16 8 33 12.7 58 232 -38 - 3 22 20 - 5 33 50 .. .. .. -47 56 47 -0.29 - 77 0 0 - 4 17 23 8 33 8.3 57 232 -37 - 3 11 23 - 5 23 2 .. .. .. -47 48 51 -0.29 - 76 0 0 - 4 6 8 8 33 4.0 57 233 -36 - 3 0 2 - 5 11 51 .. .. .. -47 40 36 -0.29 - 75 0 0 - 3 54 28 8 32 59.6 56 234 -35 - 2 48 18 - 5 0 16 .. .. .. -47 32 2 -0.29 - 74 0 0 - 3 42 26 8 32 55.4 55 234 -34 - 2 36 10 - 4 48 19 .. .. .. -47 23 11 -0.29 - 73 0 0 - 3 30 0 8 32 51.2 54 235 -33 - 2 23 39 - 4 35 58 .. .. .. -47 14 1 -0.29 - 72 0 0 - 3 17 11 8 32 47.0 53 235 -32 - 2 10 45 - 4 23 15 .. .. .. -47 4 32 -0.29 - 71 0 0 - 3 4 0 8 32 42.8 52 236 -31 - 1 57 28 - 4 10 8 .. .. .. -46 54 45 -0.29 - 70 0 0 - 2 50 25 8 32 38.7 51 236 -30 - 1 43 48 - 3 56 39 .. .. .. -46 44 39 -0.29 - 69 0 0 - 2 36 28 8 32 34.7 50 236 -29 - 1 29 45 - 3 42 48 .. .. .. -46 34 15 -0.29 - 68 0 0 - 2 22 8 8 32 30.7 49 237 -28 - 1 15 20 - 3 28 34 .. .. .. -46 23 31 -0.29 - 67 0 0 - 2 7 26 8 32 26.7 48 237 -27 - 1 0 32 - 3 13 58 .. .. .. -46 12 29 -0.29 - 66 0 0 - 1 52 22 8 32 22.8 47 237 -26 - 0 45 22 - 2 58 59 .. .. .. -46 1 8 -0.29 - 65 0 0 - 1 36 56 8 32 19.0 46 238 -25 - 0 29 49 - 2 43 39 .. .. .. -45 49 29 -0.29 - 64 0 0 - 1 21 8 8 32 15.2 45 238 -24 - 0 13 55 - 2 27 57 .. .. .. -45 37 30 -0.29 - 63 0 0 - 1 4 59 8 32 11.5 44 238 -23 0 2 20 - 2 11 54 .. .. .. -45 25 12 -0.30 - 62 0 0 - 0 48 28 8 32 7.8 43 238 -22 0 18 58 - 1 55 29 .. .. .. -45 12 36 -0.30 - 61 0 0 - 0 31 35 8 32 4.2 42 239 -21 0 35 56 - 1 38 43 .. .. .. -44 59 40 -0.30 - 60 0 0 - 0 14 22 8 32 0.6 41 239 -20 0 53 16 - 1 21 36 .. .. .. -44 46 26 -0.30 - 59 0 0 0 3 12 8 31 57.1 40 239 -19 1 10 56 - 1 4 8 .. .. .. -44 32 52 -0.30 - 58 0 0 0 21 6 8 31 53.7 39 239 -18 1 28 57 - 0 46 20 .. .. .. -44 19 0 -0.30 - 57 0 0 0 39 21 8 31 50.4 38 240 -17 1 47 18 - 0 28 12 .. .. .. -44 4 48 -0.30 - 56 0 0 0 57 55 8 31 47.1 37 240 -16 2 5 59 - 0 9 44 .. .. .. -43 50 17 -0.30 - 55 0 0 1 16 50 8 31 43.8 36 240 -15 2 25 0 0 9 4 .. .. .. -43 35 28 -0.30 - 54 0 0 1 36 3 8 31 40.7 35 240 -14 2 44 21 0 28 11 .. .. .. -43 20 19 -0.30 - 53 0 0 1 55 36 8 31 37.6 34 240 -13 3 4 0 0 47 37 .. .. .. -43 4 51 -0.30 - 52 0 0 2 15 28 8 31 34.6 33 240 -12 3 23 58 1 7 22 .. .. .. -42 49 4 -0.30 - 51 0 0 2 35 38 8 31 31.7 32 241 -11 3 44 15 1 27 26 .. .. .. -42 32 58 -0.30 - 50 0 0 2 56 6 8 31 28.8 31 241 -10 4 4 49 1 47 48 .. .. .. -42 16 34 -0.30 - 49 0 0 3 16 51 8 31 26.1 30 241 -9 4 25 41 2 8 27 .. .. .. -41 59 50 -0.30 - 48 0 0 3 37 54 8 31 23.4 29 241 -7 4 46 51 2 29 24 .. .. .. -41 42 48 -0.30 - 47 0 0 3 59 14 8 31 20.8 28 241 -6 5 8 17 2 50 37 .. .. .. -41 25 27 -0.30 - 46 0 0 4 20 51 8 31 18.2 27 241 -5 5 30 0 3 12 8 .. .. .. -41 7 48 -0.30 - 45 0 0 4 42 44 8 31 15.8 26 242 -4 5 52 0 3 33 54 .. .. .. -40 49 50 -0.30 - 44 0 0 5 4 52 8 31 13.4 25 242 -3 6 14 14 3 55 56 .. .. .. -40 31 34 -0.30 - 43 0 0 5 27 16 8 31 11.2 24 242 -2 6 36 44 4 18 14 .. .. .. -40 12 59 -0.30 - 42 0 0 5 49 54 8 31 9.0 23 242 -1 6 59 29 4 40 47 .. .. .. -39 54 7 -0.30 - 41 0 0 6 12 47 8 31 6.9 22 242 0 7 22 28 5 3 34 .. .. .. -39 34 56 -0.30 - 40 0 0 6 35 54 8 31 4.9 21 242 1 7 45 40 5 26 35 .. .. .. -39 15 28 -0.30 - 39 0 0 6 59 14 8 31 3.0 20 243 2 8 9 6 5 49 49 .. .. .. -38 55 42 -0.30 - 38 0 0 7 22 47 8 31 1.2 19 243 3 8 32 45 6 13 17 .. .. .. -38 35 39 -0.30 - 37 0 0 7 46 33 8 30 59.5 18 243 4 8 56 36 6 36 57 .. .. .. -38 15 18 -0.30 - 36 0 0 8 10 30 8 30 57.9 17 243 5 9 20 38 7 0 49 .. .. .. -37 54 41 -0.30 - 35 0 0 8 34 38 8 30 56.3 16 243 6 9 44 52 7 24 52 .. .. .. -37 33 47 -0.30 - 34 0 0 8 58 58 8 30 54.9 14 243 7 10 9 16 7 49 6 .. .. .. -37 12 36 -0.30 - 33 0 0 9 23 27 8 30 53.6 13 244 8 10 33 50 8 13 31 .. .. .. -36 51 9 -0.30 - 32 0 0 9 48 6 8 30 52.4 12 244 9 10 58 34 8 38 5 .. .. .. -36 29 26 -0.30 - 31 0 0 10 12 54 8 30 51.2 11 244 11 11 23 27 9 2 48 .. .. .. -36 7 28 -0.30 - 30 0 0 10 37 50 8 30 50.2 10 244 12 11 48 27 9 27 41 .. .. .. -35 45 14 -0.30 - 29 0 0 11 2 54 8 30 49.3 9 244 13 12 13 35 9 52 41 .. .. .. -35 22 46 -0.30 - 28 0 0 11 28 5 8 30 48.4 8 244 14 12 38 51 10 17 48 .. .. .. -35 0 2 -0.30 - 27 0 0 11 53 23 8 30 47.7 7 245 15 13 4 12 10 43 2 .. .. .. -34 37 5 -0.30 - 26 0 0 12 18 47 8 30 47.1 6 245 16 13 29 39 11 8 22 .. .. .. -34 13 54 -0.30 - 25 0 0 12 44 16 8 30 46.6 5 245 17 13 55 12 11 33 48 .. .. .. -33 50 29 -0.30 - 24 0 0 13 9 49 8 30 46.2 4 245 18 14 20 48 11 59 19 .. .. .. -33 26 52 -0.30 - 23 0 0 13 35 27 8 30 45.8 3 246 19 14 46 29 12 24 54 .. .. .. -33 3 1 -0.30 - 22 0 0 14 1 8 8 30 45.6 2 246 20 15 12 12 12 50 32 .. .. .. -32 38 59 -0.30 - 21 0 0 14 26 51 8 30 45.5 1 246 21 15 37 58 13 16 13 .. .. .. -32 14 45 -0.31 Uncertainty in time = +/- 995 secs Prediction of 2022 Jun 15.2 Data for the target star ------------------------ * name: UCAC4 336-117034 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 51 53.1991 DE: -22 58 21.010 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 51 53.1991 DE: -22 58 21.010 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: 2005 LB54 asteroid class: TNO approx. diameter [km]: 229 approx. diameter ["]: 0.008 distance from Earth [AU]: 40.70200 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#5 date of fit: 2021 Apr 14 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): 0.752", 0.147", 93.367° remarks: * orbital elements for 2005 LB54 : Mean anomaly = 356.6694131093 deg Arg. of pericenter = 175.1686651297 deg Long. of node = 96.0716308800 deg Inclination = 3.0065158960 deg Eccentricity = 0.0459080706 Semimajor axis = 43.6368840244 AU Perihelion dist = 41.6335988732 AU Mag: H = 5.80, G = 0.15 Epoch of elements : MJD 60091.35666667 TDT (2023 May 27.3567) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#52021Apr14,10.27,2023,5,27,8.588954,0.000564,0.278749,-12.590634,0.058725,-0.002231,-0.000020,0.000001,0.000000 -105.1511,-22.9788,50.46,21.28,False UCAC4 336-117034,17.86477753,-22.9725027,0.00,12.46,0.00,0.0,0,,17.88862098,-22.9788106,9.59,0.00,0,0,0 0,2005 LB54,22.05,229.1,40.7020,0,0,-0.196,0.01,,22.9 0,356.6682,2023,5,27,175.1687,96.0716,3.0065,0.04591,43.63688,41.63360,5.80,5.0,0.15 20.650,0.7520,0.1470,93,0.1525,Known errors,-1.00,-1,-1,-1 20230527_117034,59745.16 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Jun 15, 03:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org