IOTA/IOTA-ES occultation update for (2241) Alcathous / UCAC4 464-127791 event on 2023 Jul 01, 05:54 UT Visible from USA, Canada Summary ------- On 2023 Jul 01 UT, the 115.5 km diameter asteroid (2241) Alcathous will occult a 11.2 mag star in the constellation Aquarius for observers along a path across USA, Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.02 mag to 16.22 mag (the magnitude of the asteroid) for at most 11.620 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: 83 * date and approx. time of event: 2023 Jul 01, 05:45 - 2023 Jul 01, 06:05 * geocentric midpoint of event [JD]: 2460126.74688775 * magnitude of target star: 11.21 * magnitude drop [mag]: 5.02 * estimated maximum duration [s]: 11.620 * Moon: 93 % sunlit, 83° distance * Sun: 128° distance * rough path description: USA, Canada The occultation path -------------------- * approximate projected width [km]: 124 * 1 sigma uncertainty interval [path widths]: +/- 0.63 * 1 sigma uncertainty interval [seconds]: +/- 4.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.013) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.004", 59°) * approx speed of asteroid's shadow [km/s]: 9.9435 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 464-127791 by 2241 Alcathous on 2023 Jul 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 -137 0 0 51 46 38 6 5 27.0 0 86 -5 52 20 15 51 13 8 53 2 33 50 31 21 .... -136 0 0 51 49 10 6 5 26.9 1 87 -5 52 22 46 51 15 41 53 5 3 50 33 56 -0.29 -135 0 0 51 51 21 6 5 26.8 2 88 -6 52 24 56 51 17 53 53 7 11 50 36 8 -0.33 -134 0 0 51 53 10 6 5 26.5 2 88 -6 52 26 44 51 19 43 53 8 59 50 37 59 -0.34 -133 0 0 51 54 38 6 5 26.2 3 89 -6 52 28 12 51 21 12 53 10 26 50 39 29 -0.35 -132 0 0 51 55 45 6 5 25.8 3 90 -7 52 29 19 51 22 19 53 11 32 50 40 37 -0.36 -131 0 0 51 56 31 6 5 25.3 4 91 -7 52 30 5 51 23 6 53 12 18 50 41 23 -0.36 -130 0 0 51 56 56 6 5 24.7 5 91 -7 52 30 30 51 23 31 53 12 43 50 41 48 -0.37 -129 0 0 51 57 0 6 5 24.1 5 92 -8 52 30 34 51 23 34 53 12 47 50 41 52 -0.37 -128 0 0 51 56 43 6 5 23.4 6 93 -8 52 30 17 51 23 17 53 12 31 50 41 34 -0.37 -127 0 0 51 56 5 6 5 22.6 7 94 -9 52 29 40 51 22 39 53 11 54 50 40 55 -0.37 -126 0 0 51 55 6 6 5 21.7 7 95 -9 52 28 41 51 21 39 53 10 57 50 39 54 -0.37 -125 0 0 51 53 47 6 5 20.7 8 95 -9 52 27 22 51 20 18 53 9 39 50 38 33 -0.38 -124 0 0 51 52 6 6 5 19.7 8 96 -10 52 25 43 51 18 36 53 8 1 50 36 49 -0.38 -123 0 0 51 50 4 6 5 18.6 9 97 -10 52 23 42 51 16 33 53 6 2 50 34 45 -0.38 -122 0 0 51 47 41 6 5 17.4 10 98 -10 52 21 21 51 14 9 53 3 42 50 32 19 -0.38 -121 0 0 51 44 57 6 5 16.1 10 99 -11 52 18 38 51 11 24 53 1 2 50 29 32 -0.38 -120 0 0 51 41 52 6 5 14.7 11 99 -11 52 15 35 51 8 17 52 58 1 50 26 23 -0.38 -119 0 0 51 38 26 6 5 13.3 11 100 -11 52 12 11 51 4 49 52 54 39 50 22 52 -0.38 -118 0 0 51 34 39 6 5 11.7 12 101 -12 52 8 26 51 1 0 52 50 57 50 19 1 -0.38 -117 0 0 51 30 31 6 5 10.1 13 102 -12 52 4 20 50 56 49 52 46 54 50 14 47 -0.38 -116 0 0 51 26 1 6 5 8.4 13 102 -12 51 59 53 50 52 17 52 42 29 50 10 12 -0.38 -115 0 0 51 21 10 6 5 6.7 14 103 -13 51 55 4 50 47 23 52 37 44 50 5 15 -0.38 -114 0 0 51 15 57 6 5 4.8 15 104 -13 51 49 55 50 42 8 52 32 38 49 59 57 -0.38 -113 0 0 51 10 24 6 5 2.9 15 105 -13 51 44 24 50 36 31 52 27 11 49 54 16 -0.39 -112 0 0 51 4 28 6 5 0.8 16 106 -14 51 38 31 50 30 33 52 21 22 49 48 14 -0.39 -111 0 0 50 58 11 6 4 58.7 16 106 -14 51 32 17 50 24 12 52 15 13 49 41 49 -0.39 -110 0 0 50 51 32 6 4 56.5 17 107 -14 51 25 42 50 17 30 52 8 41 49 35 3 -0.39 -109 0 0 50 44 31 6 4 54.2 18 108 -14 51 18 44 50 10 25 52 1 49 49 27 54 -0.39 -108 0 0 50 37 8 6 4 51.8 18 109 -15 51 11 25 50 2 59 51 54 34 49 20 23 -0.39 -107 0 0 50 29 23 6 4 49.4 19 110 -15 51 3 44 49 55 10 51 46 58 49 12 29 -0.39 -106 0 0 50 21 16 6 4 46.8 20 110 -15 50 55 41 49 46 59 51 39 0 49 4 13 -0.39 -105 0 0 50 12 46 6 4 44.1 20 111 -16 50 47 15 49 38 25 51 30 40 48 55 34 -0.39 -104 0 0 50 3 54 6 4 41.4 21 112 -16 50 38 28 49 29 29 51 21 58 48 46 33 -0.39 -103 0 0 49 54 39 6 4 38.5 22 113 -16 50 29 18 49 20 10 51 12 53 48 37 8 -0.39 -102 0 0 49 45 2 6 4 35.6 22 114 -17 50 19 45 49 10 28 51 3 26 48 27 21 -0.39 -101 0 0 49 35 2 6 4 32.5 23 114 -17 50 9 49 49 0 23 50 53 37 48 17 10 -0.39 -100 0 0 49 24 39 6 4 29.4 24 115 -17 49 59 31 48 49 55 50 43 25 48 6 36 -0.39 - 99 0 0 49 13 52 6 4 26.1 24 116 -17 49 48 49 48 39 4 50 32 50 47 55 39 -0.39 - 98 0 0 49 2 43 6 4 22.8 25 117 -18 49 37 45 48 27 49 50 21 51 47 44 18 -0.39 - 97 0 0 48 51 9 6 4 19.3 26 117 -18 49 26 17 48 16 11 50 10 30 47 32 33 -0.39 - 96 0 0 48 39 13 6 4 15.7 26 118 -18 49 14 26 48 4 9 49 58 46 47 20 25 -0.39 - 95 0 0 48 26 52 6 4 12.1 27 119 -18 49 2 11 47 51 43 49 46 37 47 7 52 -0.39 - 94 0 0 48 14 8 6 4 8.3 28 120 -19 48 49 32 47 38 53 49 34 6 46 54 56 -0.39 - 93 0 0 48 1 0 6 4 4.4 28 121 -19 48 36 29 47 25 39 49 21 10 46 41 35 -0.39 - 92 0 0 47 47 27 6 4 0.4 29 122 -19 48 23 2 47 12 1 49 7 51 46 27 50 -0.39 - 91 0 0 47 33 30 6 3 56.3 30 122 -19 48 9 11 46 57 59 48 54 7 46 13 40 -0.39 - 90 0 0 47 19 9 6 3 52.0 30 123 -20 47 54 56 46 43 32 48 39 59 45 59 6 -0.39 - 89 0 0 47 4 23 6 3 47.7 31 124 -20 47 40 16 46 28 40 48 25 27 45 44 7 -0.39 - 88 0 0 46 49 13 6 3 43.2 32 125 -20 47 25 12 46 13 23 48 10 30 45 28 43 -0.39 - 87 0 0 46 33 38 6 3 38.6 32 126 -20 47 9 43 45 57 42 47 55 9 45 12 55 -0.40 - 86 0 0 46 17 37 6 3 33.9 33 126 -21 46 53 48 45 41 36 47 39 23 44 56 41 -0.40 - 85 0 0 46 1 12 6 3 29.0 34 127 -21 46 37 29 45 25 4 47 23 11 44 40 2 -0.40 - 84 0 0 45 44 21 6 3 24.0 34 128 -21 46 20 45 45 8 7 47 6 35 44 22 57 -0.40 - 83 0 0 45 27 5 6 3 18.9 35 129 -21 46 3 35 44 50 45 46 49 33 44 5 28 -0.40 - 82 0 0 45 9 24 6 3 13.7 36 130 -22 45 46 0 44 32 58 46 32 6 43 47 32 -0.40 - 81 0 0 44 51 17 6 3 8.3 37 131 -22 45 28 0 44 14 45 46 14 14 43 29 12 -0.40 - 80 0 0 44 32 45 6 3 2.8 37 131 -22 45 9 34 43 56 6 45 55 56 43 10 25 -0.40 - 79 0 0 44 13 47 6 2 57.2 38 132 -22 44 50 42 43 37 2 45 37 13 42 51 13 -0.40 - 78 0 0 43 54 23 6 2 51.4 39 133 -22 44 31 25 43 17 32 45 18 3 42 31 36 -0.40 - 77 0 0 43 34 34 6 2 45.5 40 134 -22 44 11 42 42 57 36 44 58 28 42 11 32 -0.40 - 76 0 0 43 14 18 6 2 39.4 40 135 -23 43 51 33 42 37 15 44 38 28 41 51 3 -0.40 - 75 0 0 42 53 37 6 2 33.2 41 136 -23 43 30 58 42 16 27 44 18 1 41 30 8 -0.40 - 74 0 0 42 32 31 6 2 26.9 42 137 -23 43 9 58 41 55 15 43 57 8 41 8 48 -0.40 - 73 0 0 42 10 58 6 2 20.4 43 138 -23 42 48 31 41 33 36 43 35 50 40 47 2 -0.40 - 72 0 0 41 49 0 6 2 13.8 43 139 -23 42 26 39 41 11 32 43 14 6 40 24 50 -0.40 - 71 0 0 41 26 36 6 2 7.0 44 140 -23 42 4 21 40 49 2 42 51 56 40 2 13 -0.40 - 70 0 0 41 3 46 6 2 0.0 45 140 -23 41 41 38 40 26 6 42 29 20 39 39 10 -0.40 - 69 0 0 40 40 31 6 1 53.0 46 141 -24 41 18 29 40 2 45 42 6 18 39 15 42 -0.40 - 68 0 0 40 16 51 6 1 45.7 46 142 -24 40 54 54 39 38 59 41 42 51 38 51 48 -0.40 - 67 0 0 39 52 45 6 1 38.3 47 143 -24 40 30 54 39 14 47 41 18 58 38 27 30 -0.40 - 66 0 0 39 28 14 6 1 30.8 48 144 -24 40 6 29 38 50 11 40 54 40 38 2 46 -0.40 - 65 0 0 39 3 18 6 1 23.1 49 145 -24 39 41 38 38 25 10 40 29 57 37 37 38 -0.40 - 64 0 0 38 37 57 6 1 15.3 49 147 -24 39 16 23 37 59 43 40 4 49 37 12 6 -0.40 - 63 0 0 38 12 12 6 1 7.3 50 148 -24 38 50 43 37 33 53 39 39 16 36 46 9 -0.40 - 62 0 0 37 46 3 6 0 59.1 51 149 -24 38 24 39 37 7 38 39 13 18 36 19 48 -0.40 - 61 0 0 37 19 29 6 0 50.8 52 150 -24 37 58 10 36 41 0 38 46 55 35 53 3 -0.40 - 60 0 0 36 52 32 6 0 42.4 53 151 -24 37 31 17 36 13 58 38 20 9 35 25 55 -0.40 - 59 0 0 36 25 11 6 0 33.7 53 152 -24 37 4 1 35 46 32 37 52 59 34 58 24 -0.40 - 58 0 0 35 57 27 6 0 25.0 54 153 -24 36 36 22 35 18 44 37 25 25 34 30 31 -0.40 - 57 0 0 35 29 21 6 0 16.1 55 155 -24 36 8 20 34 50 34 36 57 29 34 2 15 -0.40 - 56 0 0 35 0 52 6 0 7.0 56 156 -24 35 39 55 34 22 1 36 29 9 33 33 37 -0.40 - 55 0 0 34 32 1 5 59 57.8 56 157 -24 35 11 9 33 53 6 36 0 28 33 4 38 -0.40 - 54 0 0 34 2 49 5 59 48.5 57 159 -24 34 42 1 33 23 51 35 31 24 32 35 18 -0.40 - 53 0 0 33 33 17 5 59 39.0 58 160 -24 34 12 31 32 54 15 35 2 0 32 5 38 -0.40 - 52 0 0 33 3 24 5 59 29.3 59 162 -24 33 42 41 32 24 18 34 32 14 31 35 37 -0.40 - 51 0 0 32 33 11 5 59 19.5 59 163 -24 33 12 32 31 54 2 34 2 8 31 5 18 -0.40 - 50 0 0 32 2 39 5 59 9.6 60 165 -24 32 42 2 31 23 28 33 31 42 30 34 39 -0.40 - 49 0 0 31 31 48 5 58 59.6 61 167 -23 32 11 14 30 52 34 33 0 58 30 3 43 -0.40 - 48 0 0 31 0 39 5 58 49.4 61 168 -23 31 40 8 30 21 23 32 29 54 29 32 29 -0.40 - 47 0 0 30 29 13 5 58 39.0 62 170 -23 31 8 44 29 49 55 31 58 33 29 0 58 -0.40 - 46 0 0 29 57 31 5 58 28.6 63 172 -23 30 37 4 29 18 11 31 26 55 28 29 12 -0.40 - 45 0 0 29 25 32 5 58 18.0 63 174 -23 30 5 7 28 46 11 30 55 0 27 57 10 -0.40 - 44 0 0 28 53 19 5 58 7.4 64 176 -23 29 32 54 28 13 56 30 22 50 27 24 53 -0.40 - 43 0 0 28 20 51 5 57 56.6 64 178 -22 29 0 27 27 41 27 29 50 24 26 52 22 -0.40 - 42 0 0 27 48 9 5 57 45.7 65 180 -22 28 27 47 27 8 44 29 17 44 26 19 39 -0.40 - 41 0 0 27 15 14 5 57 34.7 66 183 -22 27 54 53 26 35 49 28 44 51 25 46 43 -0.40 - 40 0 0 26 42 8 5 57 23.6 66 185 -22 27 21 47 26 2 42 28 11 46 25 13 36 -0.40 - 39 0 0 26 8 50 5 57 12.4 67 188 -21 26 48 29 25 29 24 27 38 28 24 40 18 -0.40 - 38 0 0 25 35 23 5 57 1.1 67 190 -21 26 15 1 24 55 57 27 5 0 24 6 50 -0.40 - 37 0 0 25 1 45 5 56 49.7 67 193 -21 25 41 24 24 22 20 26 31 22 23 33 14 -0.39 - 36 0 0 24 28 0 5 56 38.2 68 196 -21 25 7 37 23 48 35 25 57 35 22 59 29 -0.39 - 35 0 0 23 54 6 5 56 26.7 68 198 -20 24 33 43 23 14 42 25 23 39 22 25 38 -0.39 - 34 0 0 23 20 6 5 56 15.1 68 201 -20 23 59 42 22 40 43 24 49 37 21 51 40 -0.39 - 33 0 0 22 46 0 5 56 3.5 68 204 -20 23 25 35 22 6 39 24 15 28 21 17 37 -0.39 - 32 0 0 22 11 50 5 55 51.8 68 207 -19 22 51 22 21 32 30 23 41 14 20 43 30 -0.39 - 31 0 0 21 37 35 5 55 40.1 69 210 -19 22 17 6 20 58 17 23 6 55 20 9 20 -0.39 - 30 0 0 21 3 18 5 55 28.3 69 213 -18 21 42 47 20 24 2 22 32 33 19 35 7 -0.39 - 29 0 0 20 28 59 5 55 16.5 69 216 -18 21 8 25 19 49 45 21 58 9 19 0 53 -0.39 - 28 0 0 19 54 39 5 55 4.6 68 219 -18 20 34 3 19 15 27 21 23 43 18 26 38 -0.39 - 27 0 0 19 20 19 5 54 52.7 68 222 -17 19 59 40 18 41 10 20 49 16 17 52 24 -0.39 - 26 0 0 18 46 0 5 54 40.9 68 225 -17 19 25 18 18 6 54 20 14 50 17 18 11 -0.39 - 25 0 0 18 11 43 5 54 29.0 68 228 -16 18 50 58 17 32 40 19 40 26 16 44 1 -0.39 - 24 0 0 17 37 28 5 54 17.1 67 231 -16 18 16 40 16 58 29 19 6 4 16 9 54 -0.39 - 23 0 0 17 3 18 5 54 5.2 67 234 -15 17 42 26 16 24 22 18 31 46 15 35 52 -0.39 - 22 0 0 16 29 13 5 53 53.4 67 236 -15 17 8 17 15 50 20 17 57 32 15 1 55 -0.39 - 21 0 0 15 55 13 5 53 41.6 66 239 -14 16 34 14 15 16 25 17 23 24 14 28 4 -0.39 - 20 0 0 15 21 21 5 53 29.8 66 241 -14 16 0 17 14 42 36 16 49 22 13 54 20 -0.39 - 19 0 0 14 47 36 5 53 18.0 65 243 -13 15 26 28 14 8 55 16 15 27 13 20 44 -0.39 - 18 0 0 14 13 59 5 53 6.3 65 245 -13 14 52 47 13 35 23 15 41 40 12 47 17 -0.39 - 17 0 0 13 40 32 5 52 54.6 64 248 -12 14 19 15 13 2 1 15 8 3 12 14 0 -0.39 - 16 0 0 13 7 16 5 52 43.0 63 249 -12 13 45 54 12 28 49 14 34 36 11 40 54 -0.39 - 15 0 0 12 34 11 5 52 31.5 63 251 -11 13 12 44 11 55 48 14 1 19 11 8 0 -0.39 - 14 0 0 12 1 18 5 52 20.0 62 253 -10 12 39 46 11 23 0 13 28 15 10 35 18 -0.39 - 13 0 0 11 28 38 5 52 8.6 61 255 -10 12 7 1 10 50 25 12 55 24 10 2 49 -0.39 - 12 0 0 10 56 12 5 51 57.3 60 256 -9 11 34 30 10 18 4 12 22 46 9 30 34 -0.39 - 11 0 0 10 24 0 5 51 46.0 60 258 -9 11 2 13 9 45 58 11 50 22 8 58 35 -0.39 - 10 0 0 9 52 4 5 51 34.9 59 259 -8 10 30 12 9 14 8 11 18 14 8 26 51 -0.38 - 9 0 0 9 20 25 5 51 23.9 58 260 -7 9 58 27 8 42 34 10 46 22 7 55 23 -0.38 - 8 0 0 8 49 2 5 51 13.0 57 261 -7 9 26 59 8 11 17 10 14 47 7 24 13 -0.38 - 7 0 0 8 17 58 5 51 2.1 56 263 -6 8 55 49 7 40 18 9 43 29 6 53 21 -0.38 - 6 0 0 7 47 12 5 50 51.5 55 264 -5 8 24 57 7 9 37 9 12 30 6 22 47 -0.38 - 5 0 0 7 16 45 5 50 40.9 54 265 -5 7 54 24 6 39 16 8 41 50 5 52 33 -0.38 - 4 0 0 6 46 38 5 50 30.5 54 266 -4 7 24 11 6 9 15 8 11 30 5 22 39 -0.38 - 3 0 0 6 16 51 5 50 20.2 53 266 -3 6 54 19 5 39 34 7 41 30 4 53 5 -0.38 - 2 0 0 5 47 26 5 50 10.0 52 267 -3 6 24 48 5 10 14 7 11 51 4 23 53 -0.38 - 1 0 0 5 18 22 5 50 0.0 51 268 -2 5 55 38 4 41 17 6 42 34 3 55 2 -0.38 0 0 0 4 49 41 5 49 50.1 50 269 -1 5 26 51 4 12 42 6 13 39 3 26 35 -0.38 1 0 0 4 21 23 5 49 40.4 49 269 -1 4 58 27 3 44 30 5 45 8 2 58 30 -0.38 2 0 0 3 53 29 5 49 30.8 48 270 0 4 30 27 3 16 41 5 17 0 2 30 48 -0.38 3 0 0 3 25 58 5 49 21.4 47 270 1 4 2 50 2 49 16 4 49 16 2 3 31 -0.38 4 0 0 2 58 52 5 49 12.1 46 271 1 3 35 38 2 22 16 4 21 56 1 36 38 -0.38 5 0 0 2 32 12 5 49 3.1 45 271 2 3 8 51 1 55 41 3 55 2 1 10 11 -0.38 6 0 0 2 5 56 5 48 54.1 44 272 3 2 42 30 1 29 32 3 28 33 0 44 9 -0.38 7 0 0 1 40 7 5 48 45.4 43 272 4 2 16 35 1 3 49 3 2 30 0 18 32 -0.38 8 0 0 1 14 44 5 48 36.8 42 273 4 1 51 6 0 38 32 2 36 54 - 0 6 37 -0.38 9 0 0 0 49 48 5 48 28.5 41 273 5 1 26 4 0 13 41 2 11 44 - 0 31 20 -0.38 10 0 0 0 25 20 5 48 20.2 40 273 6 1 1 30 - 0 10 41 1 47 2 - 0 55 36 -0.38 11 0 0 0 1 18 5 48 12.2 39 274 7 0 37 23 - 0 34 37 1 22 48 - 1 19 25 -0.38 12 0 0 - 0 22 15 5 48 4.4 38 274 7 0 13 44 - 0 58 5 0 59 2 - 1 42 45 -0.38 13 0 0 - 0 45 20 5 47 56.7 37 274 8 - 0 9 27 - 1 21 4 0 35 44 - 2 5 38 -0.38 14 0 0 - 1 7 56 5 47 49.3 36 274 9 - 0 32 9 - 1 43 35 0 12 55 - 2 28 2 -0.38 15 0 0 - 1 30 3 5 47 42.0 35 274 9 - 0 54 21 - 2 5 36 - 0 9 25 - 2 49 57 -0.38 16 0 0 - 1 51 42 5 47 34.9 34 275 10 - 1 16 5 - 2 27 9 - 0 31 16 - 3 11 23 -0.39 17 0 0 - 2 12 50 5 47 28.0 33 275 11 - 1 37 19 - 2 48 13 - 0 52 36 - 3 32 20 -0.39 18 0 0 - 2 33 29 5 47 21.3 32 275 12 - 1 58 3 - 3 8 46 - 1 13 27 - 3 52 47 -0.39 19 0 0 - 2 53 38 5 47 14.8 31 275 12 - 2 18 18 - 3 28 50 - 1 33 48 - 4 12 44 -0.39 20 0 0 - 3 13 17 5 47 8.5 30 275 13 - 2 38 1 - 3 48 24 - 1 53 39 - 4 32 12 -0.39 21 0 0 - 3 32 25 5 47 2.4 29 275 14 - 2 57 15 - 4 7 27 - 2 12 58 - 4 51 9 -0.39 22 0 0 - 3 51 3 5 46 56.5 28 275 15 - 3 15 58 - 4 26 0 - 2 31 47 - 5 9 36 -0.39 23 0 0 - 4 9 10 5 46 50.8 27 275 15 - 3 34 9 - 4 44 2 - 2 50 5 - 5 27 32 -0.39 24 0 0 - 4 26 46 5 46 45.3 26 275 16 - 3 51 50 - 5 1 34 - 3 7 52 - 5 44 58 -0.39 25 0 0 - 4 43 51 5 46 40.0 25 275 17 - 4 8 59 - 5 18 34 - 3 25 7 - 6 1 52 -0.39 26 0 0 - 5 0 24 5 46 34.9 24 275 18 - 4 25 37 - 5 35 3 - 3 41 51 - 6 18 16 -0.39 27 0 0 - 5 16 26 5 46 30.0 23 275 18 - 4 41 44 - 5 51 0 - 3 58 2 - 6 34 8 -0.39 28 0 0 - 5 31 56 5 46 25.3 22 275 19 - 4 57 18 - 6 6 27 - 4 13 42 - 6 49 29 -0.39 29 0 0 - 5 46 55 5 46 20.8 21 275 20 - 5 12 21 - 6 21 21 - 4 28 50 - 7 4 18 -0.39 30 0 0 - 6 1 22 5 46 16.6 20 275 21 - 5 26 51 - 6 35 44 - 4 43 26 - 7 18 36 -0.39 31 0 0 - 6 15 16 5 46 12.5 19 275 22 - 5 40 50 - 6 49 35 - 4 57 29 - 7 32 22 -0.39 32 0 0 - 6 28 39 5 46 8.6 18 275 22 - 5 54 16 - 7 2 53 - 5 11 0 - 7 45 36 -0.39 33 0 0 - 6 41 29 5 46 4.9 17 275 23 - 6 7 10 - 7 15 40 - 5 23 58 - 7 58 19 -0.40 34 0 0 - 6 53 47 5 46 1.4 16 275 24 - 6 19 31 - 7 27 55 - 5 36 24 - 8 10 29 -0.40 35 0 0 - 7 5 32 5 45 58.2 15 275 25 - 6 31 20 - 7 39 37 - 5 48 17 - 8 22 7 -0.40 36 0 0 - 7 16 45 5 45 55.1 14 275 25 - 6 42 36 - 7 50 46 - 5 59 37 - 8 33 13 -0.40 37 0 0 - 7 27 25 5 45 52.2 13 275 26 - 6 53 19 - 8 1 24 - 6 10 24 - 8 43 47 -0.40 38 0 0 - 7 37 33 5 45 49.6 12 275 27 - 7 3 29 - 8 11 28 - 6 20 38 - 8 53 48 -0.40 39 0 0 - 7 47 7 5 45 47.1 11 274 28 - 7 13 7 - 8 21 1 - 6 30 18 - 9 3 17 -0.40 40 0 0 - 7 56 9 5 45 44.9 10 274 28 - 7 22 11 - 8 30 0 - 6 39 26 - 9 12 13 -0.41 41 0 0 - 8 4 38 5 45 42.8 9 274 29 - 7 30 42 - 8 38 26 - 6 48 0 - 9 20 37 -0.41 42 0 0 - 8 12 34 5 45 41.0 8 274 30 - 7 38 40 - 8 46 20 - 6 56 1 - 9 28 28 -0.41 43 0 0 - 8 19 57 5 45 39.4 7 274 31 - 7 46 5 - 8 53 41 - 7 3 28 - 9 35 46 -0.42 44 0 0 - 8 26 46 5 45 37.9 6 274 31 - 7 52 56 - 9 0 28 - 7 10 22 - 9 42 31 -0.42 45 0 0 - 8 33 2 5 45 36.7 5 274 32 - 7 59 14 - 9 6 43 - 7 16 42 - 9 48 44 -0.43 46 0 0 - 8 38 45 5 45 35.7 4 273 33 - 8 4 58 - 9 12 24 - 7 22 28 - 9 54 23 -0.44 47 0 0 - 8 43 55 5 45 34.9 3 273 34 - 8 10 9 - 9 17 33 - 7 27 40 - 9 59 30 -0.45 48 0 0 - 8 48 31 5 45 34.3 2 273 34 - 8 14 46 - 9 22 7 - 7 32 19 -10 4 3 -0.48 49 0 0 - 8 52 33 5 45 33.9 1 273 35 - 8 18 50 - 9 26 9 - 7 36 24 -10 8 3 -0.54 50 0 0 - 8 56 2 5 45 33.7 0 273 36 - 8 22 19 - 9 29 37 - 7 39 54 -10 11 30 -0.83 Uncertainty in time = +/- 8 secs Prediction of 2023 May 14.2 Data for the target star ------------------------ * name: UCAC4 464-127791 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 44 08.5378 DE: +02 40 07.965 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 44 08.5378 DE: +02 40 07.966 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2241) Alcathous asteroid class: approx. diameter [km]: 116 approx. diameter ["]: 0.034 distance from Earth [AU]: 4.64870 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#83 date of fit: 2023 Apr 27 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): 0.024", 0.004", 58.908° remarks: * orbital elements for (2241)Alcathous : Mean anomaly = 114.2570200559 deg Arg. of pericenter = 292.8330302063 deg Long. of node = 267.9960077289 deg Inclination = 16.6273876524 deg Eccentricity = 0.0658070032 Semimajor axis = 5.1768487642 AU Perihelion dist = 4.8361758610 AU Mag: H = 8.62, G = 0.15 Epoch of elements : MJD 60126.24645833 TDT (2023 Jul 01.2465) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#832023Apr27,11.62,2023,7,1,5.925306,0.183406,0.314524,-4.847822,2.827936,-0.003819,-0.002433,0.000001,0.000000 -41.5796,2.7758,92.08,23.12,False UCAC4 464-127791,21.73570493,2.6688792,0.00,11.21,0.00,0.0,0,,21.75564561,2.7758085,5.02,0.00,0,0,0 2241,Alcathous,16.22,115.5,4.6487,0,0,-0.611,5.36,,7.0,0 0,114.2364,2023,7,1,292.8330,267.9960,16.6274,0.06581,5.17685,4.83618,8.66,5.0,0.15 1.626,0.0243,0.0040,59,0.0215,Known errors,-1.00,-1,-1,-1 20230701_127791,60078.16 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 May 14, 03:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org