IOTA/IOTA-ES occultation update for (393) Lampetia / UCAC4 416-111763 event on 2023 May 01, 09:50 UT Visible from Canada, USA, Mexico Summary ------- On 2023 May 01 UT, the 129.2 km diameter asteroid (393) Lampetia will occult a 11.4 mag star in the constellation Scutum for observers along a path across Canada, USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.01 mag to 11.86 mag (the magnitude of the asteroid) for at most 9.510 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: 2023 May 01, 09:44 - 2023 May 01, 09:57 * geocentric midpoint of event [JD]: 2460065.91037258 * magnitude of target star: 11.40 * magnitude drop [mag]: 1.01 * estimated maximum duration [s]: 9.510 * Moon: 81 % sunlit, 113° distance * Sun: 115° distance * rough path description: Canada, USA, Mexico The occultation path -------------------- * approximate projected width [km]: 161 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.025, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.003", 79°) * approx speed of asteroid's shadow [km/s]: 13.5811 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 416-111763 by 393 Lampetia on 2023 May 1 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 -10 11 7 9 44 39.4 1 97 -66 -10 54 43 - 9 27 7 -11 4 44 - 9 16 53 .... -170 0 0 -10 17 9 9 44 39.6 2 97 -67 -11 0 41 - 9 33 12 -11 10 41 - 9 22 59 -0.53 -169 0 0 -10 22 13 9 44 40.1 3 97 -68 -11 5 42 - 9 38 19 -11 15 42 - 9 28 6 -0.60 -168 0 0 -10 26 20 9 44 40.6 4 96 -69 -11 9 47 - 9 42 28 -11 19 46 - 9 32 16 -0.64 -167 0 0 -10 29 30 9 44 41.4 5 96 -70 -11 12 55 - 9 45 39 -11 22 55 - 9 35 27 -0.66 -166 0 0 -10 31 43 9 44 42.4 6 96 -71 -11 15 7 - 9 47 53 -11 25 6 - 9 37 41 -0.68 -165 0 0 -10 32 58 9 44 43.5 7 96 -72 -11 16 23 - 9 49 8 -11 26 22 - 9 38 57 -0.69 -164 0 0 -10 33 16 9 44 44.8 8 96 -73 -11 16 42 - 9 49 26 -11 26 41 - 9 39 14 -0.70 -163 0 0 -10 32 37 9 44 46.2 9 96 -74 -11 16 4 - 9 48 46 -11 26 3 - 9 38 34 -0.70 -162 0 0 -10 31 1 9 44 47.8 10 95 -75 -11 14 29 - 9 47 7 -11 24 29 - 9 36 54 -0.71 -161 0 0 -10 28 26 9 44 49.6 11 95 -75 -11 11 58 - 9 44 30 -11 21 58 - 9 34 17 -0.71 -160 0 0 -10 24 54 9 44 51.6 12 95 -76 -11 8 29 - 9 40 54 -11 18 30 - 9 30 40 -0.72 -159 0 0 -10 20 24 9 44 53.8 13 95 -77 -11 4 2 - 9 36 20 -11 14 4 - 9 26 5 -0.72 -158 0 0 -10 14 55 9 44 56.1 14 95 -78 -10 58 38 - 9 30 46 -11 8 41 - 9 20 30 -0.72 -157 0 0 -10 8 27 9 44 58.6 15 95 -79 -10 52 16 - 9 24 13 -11 2 20 - 9 13 55 -0.73 -156 0 0 -10 1 0 9 45 1.3 16 95 -80 -10 44 55 - 9 16 40 -10 55 1 - 9 6 20 -0.73 -155 0 0 - 9 52 34 9 45 4.1 17 94 -81 -10 36 35 - 9 8 6 -10 46 43 - 8 57 45 -0.73 -154 0 0 - 9 43 7 9 45 7.2 18 94 -81 -10 27 16 - 8 58 32 -10 37 26 - 8 48 9 -0.73 -153 0 0 - 9 32 40 9 45 10.4 19 94 -82 -10 16 58 - 8 47 56 -10 27 9 - 8 37 31 -0.73 -152 0 0 - 9 21 12 9 45 13.8 20 94 -82 -10 5 39 - 8 36 18 -10 15 52 - 8 25 51 -0.74 -151 0 0 - 9 8 42 9 45 17.4 21 94 -83 - 9 53 19 - 8 23 38 -10 3 34 - 8 13 9 -0.74 -150 0 0 - 8 55 10 9 45 21.2 22 94 -83 - 9 39 57 - 8 9 55 - 9 50 15 - 7 59 23 -0.74 -149 0 0 - 8 40 35 9 45 25.1 23 94 -83 - 9 25 34 - 7 55 8 - 9 35 54 - 7 44 34 -0.74 -148 0 0 - 8 24 56 9 45 29.3 24 94 -83 - 9 10 8 - 7 39 17 - 9 20 31 - 7 28 39 -0.74 -147 0 0 - 8 8 14 9 45 33.6 25 94 -83 - 8 53 38 - 7 22 21 - 9 4 4 - 7 11 40 -0.74 -146 0 0 - 7 50 26 9 45 38.2 26 94 -83 - 8 36 4 - 7 4 18 - 8 46 33 - 6 53 34 -0.74 -145 0 0 - 7 31 32 9 45 42.9 26 94 -82 - 8 17 25 - 6 45 9 - 8 27 57 - 6 34 21 -0.74 -144 0 0 - 7 11 31 9 45 47.8 27 94 -81 - 7 57 40 - 6 24 52 - 8 8 16 - 6 14 0 -0.75 -143 0 0 - 6 50 22 9 45 53.0 28 94 -81 - 7 36 48 - 6 3 26 - 7 47 28 - 5 52 30 -0.75 -142 0 0 - 6 28 5 9 45 58.3 29 94 -80 - 7 14 49 - 5 40 51 - 7 25 33 - 5 29 51 -0.75 -141 0 0 - 6 4 39 9 46 3.9 30 95 -79 - 6 51 41 - 5 17 5 - 7 2 29 - 5 6 0 -0.75 -140 0 0 - 5 40 1 9 46 9.6 31 95 -78 - 6 27 23 - 4 52 8 - 6 38 15 - 4 40 58 -0.75 -139 0 0 - 5 14 12 9 46 15.6 32 95 -77 - 6 1 54 - 4 25 57 - 6 12 52 - 4 14 43 -0.75 -138 0 0 - 4 47 11 9 46 21.8 33 95 -76 - 5 35 14 - 3 58 33 - 5 46 16 - 3 47 13 -0.75 -137 0 0 - 4 18 55 9 46 28.2 34 96 -75 - 5 7 21 - 3 29 54 - 5 18 29 - 3 18 28 -0.75 -136 0 0 - 3 49 24 9 46 34.8 35 96 -74 - 4 38 14 - 2 59 58 - 4 49 27 - 2 48 27 -0.75 -135 0 0 - 3 18 37 9 46 41.6 36 96 -73 - 4 7 52 - 2 28 45 - 4 19 10 - 2 17 8 -0.75 -134 0 0 - 2 46 32 9 46 48.7 37 97 -72 - 3 36 14 - 1 56 13 - 3 47 38 - 1 44 30 -0.75 -133 0 0 - 2 13 9 9 46 56.0 38 97 -71 - 3 3 17 - 1 22 21 - 3 14 48 - 1 10 31 -0.75 -132 0 0 - 1 38 25 9 47 3.6 39 98 -70 - 2 29 2 - 0 47 8 - 2 40 39 - 0 35 11 -0.75 -131 0 0 - 1 2 20 9 47 11.3 40 98 -68 - 1 53 27 - 0 10 32 - 2 5 11 0 1 33 -0.75 -130 0 0 - 0 24 52 9 47 19.3 41 99 -67 - 1 16 31 0 27 28 - 1 28 22 0 39 41 -0.75 -129 0 0 0 14 0 9 47 27.6 42 100 -66 - 0 38 11 1 6 54 - 0 50 10 1 19 15 -0.75 -128 0 0 0 54 17 9 47 36.0 43 100 -65 0 1 32 1 47 47 - 0 10 34 2 0 16 -0.75 -127 0 0 1 36 1 9 47 44.8 44 101 -64 0 42 41 2 30 8 0 30 27 2 42 46 -0.75 -126 0 0 2 19 13 9 47 53.7 45 102 -62 1 25 16 3 13 59 1 12 54 3 26 46 -0.75 -125 0 0 3 3 55 9 48 2.9 45 103 -61 2 9 19 3 59 21 1 56 49 4 12 18 -0.75 -124 0 0 3 50 8 9 48 12.4 46 104 -60 2 54 52 4 46 16 2 42 12 4 59 22 -0.75 -123 0 0 4 37 53 9 48 22.1 47 105 -59 3 41 55 5 34 44 3 29 6 5 48 1 -0.75 -122 0 0 5 27 11 9 48 32.0 48 107 -57 4 30 30 6 24 48 4 17 31 6 38 16 -0.75 -121 0 0 6 18 4 9 48 42.2 49 108 -56 5 20 37 7 16 29 5 7 28 7 30 8 -0.75 -120 0 0 7 10 33 9 48 52.6 49 109 -55 6 12 19 8 9 47 5 58 59 8 23 38 -0.75 -119 0 0 8 4 38 9 49 3.3 50 111 -53 7 5 35 9 4 43 6 52 5 9 18 47 -0.75 -118 0 0 9 0 21 9 49 14.2 51 113 -52 8 0 28 10 1 20 7 46 45 10 15 36 -0.75 -117 0 0 9 57 43 9 49 25.3 51 114 -50 8 56 57 10 59 37 8 43 3 11 14 6 -0.75 -116 0 0 10 56 43 9 49 36.6 52 116 -49 9 55 3 11 59 36 9 40 56 12 14 19 -0.75 -115 0 0 11 57 24 9 49 48.2 52 118 -48 10 54 46 13 1 16 10 40 27 13 16 14 -0.75 -114 0 0 12 59 45 9 50 0.0 53 120 -46 11 56 8 14 4 39 11 41 36 14 19 52 -0.75 -113 0 0 14 3 45 9 50 11.9 53 122 -45 12 59 8 15 9 45 12 44 22 15 25 13 -0.75 -112 0 0 15 9 26 9 50 24.1 53 125 -43 14 3 46 16 16 33 13 48 46 16 32 17 -0.75 -111 0 0 16 16 47 9 50 36.4 53 127 -42 15 10 1 17 25 3 14 54 46 17 41 4 -0.75 -110 0 0 17 25 47 9 50 48.9 53 129 -40 16 17 53 18 35 15 16 2 23 18 51 33 -0.74 -109 0 0 18 36 24 9 51 1.5 53 132 -39 17 27 21 19 47 7 17 11 36 20 3 43 -0.74 -108 0 0 19 48 39 9 51 14.2 53 134 -37 18 38 23 21 0 39 18 22 22 21 17 34 -0.74 -107 0 0 21 2 28 9 51 27.1 53 136 -36 19 50 59 22 15 48 19 34 41 22 33 2 -0.74 -106 0 0 22 17 50 9 51 40.0 53 139 -34 21 5 4 23 32 32 20 48 30 23 50 6 -0.74 -105 0 0 23 34 42 9 51 53.1 52 141 -32 22 20 38 24 50 49 22 3 46 25 8 44 -0.74 -104 0 0 24 53 1 9 52 6.1 52 144 -31 23 37 36 26 10 35 23 20 26 26 28 51 -0.74 -103 0 0 26 12 43 9 52 19.2 51 146 -29 24 55 56 27 31 47 24 38 28 27 50 25 -0.74 -102 0 0 27 33 44 9 52 32.2 51 149 -28 26 15 32 28 54 20 25 57 46 29 13 20 -0.74 -101 0 0 28 55 59 9 52 45.2 50 151 -26 27 36 21 30 18 9 27 18 16 30 37 32 -0.74 -100 0 0 30 19 22 9 52 58.2 49 153 -25 28 58 17 31 43 8 28 39 52 32 2 56 -0.74 - 99 0 0 31 43 48 9 53 11.0 48 155 -23 30 21 13 33 9 12 30 2 30 33 29 23 -0.74 - 98 0 0 33 9 9 9 53 23.7 47 157 -22 31 45 4 34 36 13 31 26 1 34 56 49 -0.74 - 97 0 0 34 35 18 9 53 36.2 46 159 -20 33 9 43 36 4 3 32 50 19 36 25 4 -0.74 - 96 0 0 36 2 8 9 53 48.6 45 161 -18 34 35 0 37 32 34 34 15 17 37 54 0 -0.74 - 95 0 0 37 29 28 9 54 0.6 44 163 -17 36 0 49 39 1 37 35 40 46 39 23 28 -0.74 - 94 0 0 38 57 10 9 54 12.5 43 165 -15 37 27 0 40 31 1 37 6 37 40 53 19 -0.74 - 93 0 0 40 25 4 9 54 24.0 42 167 -14 38 53 24 42 0 38 38 32 42 42 23 20 -0.74 - 92 0 0 41 53 0 9 54 35.2 41 168 -12 40 19 50 43 30 14 39 58 49 43 53 23 -0.74 - 91 0 0 43 20 46 9 54 46.0 39 170 -11 41 46 9 44 59 40 41 24 49 45 23 14 -0.74 - 90 0 0 44 48 12 9 54 56.4 38 171 -10 43 12 10 46 28 43 42 50 32 46 52 41 -0.74 - 89 0 0 46 15 5 9 55 6.4 37 173 -8 44 37 42 47 57 11 44 15 47 48 21 33 -0.74 - 88 0 0 47 41 16 9 55 16.0 35 174 -7 46 2 34 49 24 51 45 40 22 49 49 36 -0.74 - 87 0 0 49 6 30 9 55 25.2 34 176 -6 47 26 36 50 51 31 47 4 8 51 16 38 -0.74 - 86 0 0 50 30 38 9 55 33.9 33 177 -4 48 49 35 52 16 58 48 26 53 52 42 25 -0.74 - 85 0 0 51 53 27 9 55 42.1 31 178 -3 50 11 22 53 41 0 49 48 27 54 6 46 -0.74 - 84 0 0 53 14 47 9 55 49.9 30 179 -2 51 31 47 55 3 26 51 8 40 55 29 29 -0.74 - 83 0 0 54 34 27 9 55 57.2 29 181 -1 52 50 39 56 24 3 52 27 22 56 50 21 -0.74 - 82 0 0 55 52 17 9 56 4.0 27 182 0 54 7 49 57 42 42 53 44 24 58 9 12 -0.74 - 81 0 0 57 8 9 9 56 10.3 26 183 2 55 23 9 58 59 12 54 59 37 59 25 53 -0.74 - 80 0 0 58 21 55 9 56 16.2 25 184 3 56 36 31 60 13 26 56 12 55 60 40 14 -0.74 - 79 0 0 59 33 27 9 56 21.6 23 185 4 57 47 49 61 25 15 57 24 10 61 52 8 -0.74 - 78 0 0 60 42 39 9 56 26.6 22 186 4 58 56 57 62 34 34 58 33 17 63 1 29 -0.74 - 77 0 0 61 49 27 9 56 31.2 21 187 5 60 3 50 63 41 18 59 40 11 64 8 11 -0.74 - 76 0 0 62 53 49 9 56 35.4 20 188 6 61 8 25 64 45 23 60 44 49 65 12 12 -0.74 - 75 0 0 63 55 39 9 56 39.2 19 189 7 62 10 39 65 46 47 61 47 8 66 13 30 -0.74 - 74 0 0 64 54 59 9 56 42.7 18 190 8 63 10 31 66 45 30 62 47 6 67 12 4 -0.75 - 73 0 0 65 51 47 9 56 45.9 17 191 8 64 7 59 67 41 32 63 44 44 68 7 53 -0.75 - 72 0 0 66 46 5 9 56 48.7 16 192 9 65 3 6 68 34 54 64 40 0 69 1 1 -0.75 - 71 0 0 67 37 55 9 56 51.3 15 193 10 65 55 51 69 25 39 65 32 57 69 51 30 -0.75 - 70 0 0 68 27 18 9 56 53.6 14 194 10 66 46 16 70 13 51 66 23 35 70 39 23 -0.75 - 69 0 0 69 14 20 9 56 55.7 13 195 11 67 34 25 70 59 34 67 11 59 71 24 46 -0.75 - 68 0 0 69 59 3 9 56 57.5 12 196 11 68 20 21 71 42 53 67 58 10 72 7 43 -0.75 - 67 0 0 70 41 32 9 56 59.2 12 197 12 69 4 7 72 23 53 68 42 13 72 48 21 -0.75 - 66 0 0 71 21 52 9 57 0.7 11 198 12 69 45 48 73 2 40 69 24 11 73 26 45 -0.75 - 65 0 0 72 0 8 9 57 2.0 10 199 13 70 25 28 73 39 20 70 4 9 74 3 0 -0.75 - 64 0 0 72 36 26 9 57 3.2 9 200 13 71 3 12 74 14 0 70 42 11 74 37 15 -0.75 - 63 0 0 73 10 50 9 57 4.2 9 201 13 71 39 4 74 46 44 71 18 22 75 9 34 -0.75 - 62 0 0 73 43 27 9 57 5.2 8 202 14 72 13 10 75 17 40 71 52 47 75 40 5 -0.75 - 61 0 0 74 14 21 9 57 6.0 8 203 14 72 45 33 75 46 53 72 25 30 76 8 52 -0.75 - 60 0 0 74 43 38 9 57 6.7 7 204 14 73 16 20 76 14 29 72 56 36 76 36 3 -0.75 - 59 0 0 75 11 23 9 57 7.4 7 205 15 73 45 35 76 40 33 73 26 11 77 1 42 -0.75 - 58 0 0 75 37 41 9 57 7.9 6 206 15 74 13 22 77 5 12 73 54 17 77 25 56 -0.75 - 57 0 0 76 2 37 9 57 8.4 6 207 15 74 39 46 77 28 30 74 21 0 77 48 50 -0.75 - 56 0 0 76 26 15 9 57 8.9 5 208 16 75 4 51 77 50 32 74 46 24 78 10 28 -0.75 - 55 0 0 76 48 40 9 57 9.2 5 209 16 75 28 42 78 11 22 75 10 33 78 30 55 -0.75 - 54 0 0 77 9 57 9 57 9.6 4 210 16 75 51 22 78 31 6 75 33 32 78 50 16 -0.75 - 53 0 0 77 30 8 9 57 9.9 4 211 16 76 12 55 78 49 47 75 55 23 79 8 35 -0.74 - 52 0 0 77 49 18 9 57 10.1 3 212 16 76 33 25 79 7 29 76 16 11 79 25 55 -0.74 - 51 0 0 78 7 30 9 57 10.3 3 213 17 76 52 56 79 24 16 76 35 59 79 42 21 -0.74 - 50 0 0 78 24 47 9 57 10.5 3 214 17 77 11 30 79 40 10 76 54 49 79 57 55 -0.74 - 49 0 0 78 41 14 9 57 10.7 2 215 17 77 29 11 79 55 16 77 12 47 80 12 41 -0.74 - 48 0 0 78 56 52 9 57 10.8 2 216 17 77 46 1 80 9 36 77 29 53 80 26 42 -0.73 - 47 0 0 79 11 44 9 57 10.9 2 217 17 78 2 4 80 23 13 77 46 11 80 40 1 -0.73 - 46 0 0 79 25 54 9 57 11.0 1 218 17 78 17 21 80 36 9 78 1 44 80 52 39 -0.73 - 45 0 0 79 39 23 9 57 11.0 1 219 17 78 31 56 80 48 27 78 16 34 81 4 40 -0.72 - 44 0 0 79 52 14 9 57 11.1 1 220 18 78 45 51 81 0 9 78 30 42 .. .. .. -0.71 - 43 0 0 80 4 28 9 57 11.1 1 221 18 78 59 7 .. .. .. 78 44 12 .. .. .. -0.69 - 42 0 0 80 16 8 9 57 11.1 0 222 18 79 11 47 .. .. .. 78 57 6 .. .. .. -0.65 - 41 0 0 80 27 16 9 57 11.1 0 223 18 79 23 53 .. .. .. 79 9 24 .. .. .. -0.42 - 40 0 0 .. .. .... .. .. .. .. .. .. 79 35 26 .. .. .. 79 21 10 .. .. .. .... - 39 0 0 .. .. .... .. .. .. .. .. .. 79 46 28 .. .. .. 79 32 24 .. .. .. .... - 38 0 0 .. .. .... .. .. .. .. .. .. 79 57 1 .. .. .. 79 43 8 .. .. .. .... - 37 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 79 53 24 .. .. .. .... Uncertainty in time = +/- 2 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: UCAC4 416-111763 * constellation : Scutum * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 56 59.7233 DE: -06 59 12.225 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 56 59.7233 DE: -06 59 12.224 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (393) Lampetia asteroid class: approx. diameter [km]: 129 approx. diameter ["]: 0.130 distance from Earth [AU]: 1.36600 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#127 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): 0.026", 0.003", 78.571° remarks: * orbital elements for (393)Lampetia : Mean anomaly = 337.4949335214 deg Arg. of pericenter = 90.8676380826 deg Long. of node = 212.3931338638 deg Inclination = 14.8773233650 deg Eccentricity = 0.3299794537 Semimajor axis = 2.7796988651 AU Perihelion dist = 1.8624553522 AU Mag: H = 8.42, G = 0.15 Epoch of elements : MJD 60065.41034722 TDT (2023 May 01.4103) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1272023Apr24,9.51,2023,5,1,9.848942,-0.434238,0.409065,5.255141,5.580705,-0.004554,-0.001096,0.000001,0.000000 -82.2421,-6.9579,31.56,15.06,False UCAC4 416-111763,18.94992312,-6.9867291,0.00,11.40,0.00,0.0,0,,18.97086098,-6.9579371,1.01,0.00,0,0,0 393,Lampetia,11.86,129.2,1.3660,0,0,2.272,35.93,,8.4,0 0,337.4077,2023,5,1,90.8676,212.3931,14.8773,0.32998,2.77970,1.86246,8.45,5.0,0.15 1.116,0.0257,0.0033,79,0.0151,Known errors,-1.00,-1,-1,-1 20230501_111763,60063.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:17 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org