IOTA/IOTA-ES occultation update for (1428) Mombasa / UCAC4 504-027734 event on 2023 Dec 02, 02:23 UT Visible from Africa, SE USA Summary ------- On 2023 Dec 02 UT, the 55.4 km diameter asteroid (1428) Mombasa will occult a 12.5 mag star in the constellation Monoceros for observers along a path across Africa, SE USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.11 mag to 14.41 mag (the magnitude of the asteroid) for at most 5.540 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 Dec 02, 02:12 - 2023 Dec 02, 02:34 * geocentric midpoint of event [JD]: 2460280.59950742 * magnitude of target star: 12.47 * magnitude drop [mag]: 2.11 * estimated maximum duration [s]: 5.540 * Moon: 78 % sunlit, 32° distance * Sun: 149° distance * rough path description: Africa, SE USA The occultation path -------------------- * approximate projected width [km]: 56 * 1 sigma uncertainty interval [path widths]: +/- 0.20 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.016", 0.001", 75°) * approx speed of asteroid's shadow [km/s]: 10.0032 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 504-027734 by 1428 Mombasa on 2023 Dec 2 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 -106 0 0 26 2 33 2 33 48.6 0 78 -31 26 18 1 .. .. .. 26 24 15 .. .. .. .... -105 0 0 26 13 50 2 33 48.5 1 79 -32 26 29 18 25 58 24 26 35 31 25 52 11 -0.14 -104 0 0 26 24 48 2 33 48.2 2 79 -33 26 40 14 26 9 22 26 46 26 26 3 10 -0.14 -103 0 0 26 35 25 2 33 47.8 3 79 -34 26 50 50 26 20 0 26 57 2 26 13 49 -0.13 -102 0 0 26 45 42 2 33 47.2 4 80 -35 27 1 6 26 30 19 27 7 18 26 24 7 -0.13 -101 0 0 26 55 39 2 33 46.5 5 80 -36 27 11 3 26 40 17 27 17 14 26 34 6 -0.13 -100 0 0 27 5 17 2 33 45.6 5 81 -37 27 20 39 26 49 55 27 26 50 26 43 44 -0.13 - 99 0 0 27 14 34 2 33 44.6 6 81 -38 27 29 55 26 59 13 27 36 6 26 53 3 -0.13 - 98 0 0 27 23 31 2 33 43.4 7 82 -38 27 38 52 27 8 11 27 45 2 27 2 1 -0.13 - 97 0 0 27 32 8 2 33 42.0 8 82 -39 27 47 28 27 16 49 27 53 38 27 10 40 -0.13 - 96 0 0 27 40 25 2 33 40.5 9 83 -40 27 55 44 27 25 7 28 1 54 27 18 58 -0.13 - 95 0 0 27 48 23 2 33 38.8 10 83 -41 28 3 41 27 33 5 28 9 50 27 26 56 -0.13 - 94 0 0 27 56 0 2 33 37.0 11 84 -42 28 11 17 27 40 43 28 17 26 27 34 34 -0.13 - 93 0 0 28 3 17 2 33 35.1 12 84 -43 28 18 33 27 48 1 28 24 42 27 41 53 -0.13 - 92 0 0 28 10 14 2 33 33.0 13 84 -44 28 25 30 27 54 59 28 31 38 27 48 51 -0.13 - 91 0 0 28 16 51 2 33 30.7 13 85 -45 28 32 6 28 1 37 28 38 15 27 55 29 -0.13 - 90 0 0 28 23 9 2 33 28.4 14 85 -45 28 38 23 28 7 55 28 44 31 28 1 47 -0.13 - 89 0 0 28 29 6 2 33 25.8 15 86 -46 28 44 20 28 13 53 28 50 28 28 7 46 -0.13 - 88 0 0 28 34 44 2 33 23.2 16 86 -47 28 49 57 28 19 31 28 56 4 28 13 24 -0.13 - 87 0 0 28 40 1 2 33 20.4 17 87 -48 28 55 14 28 24 49 29 1 21 28 18 42 -0.13 - 86 0 0 28 44 59 2 33 17.4 18 87 -49 29 0 11 28 29 47 29 6 19 28 23 41 -0.13 - 85 0 0 28 49 37 2 33 14.4 19 88 -50 29 4 49 28 34 26 29 10 56 28 28 20 -0.13 - 84 0 0 28 53 56 2 33 11.2 20 88 -51 29 9 7 28 38 45 29 15 14 28 32 39 -0.13 - 83 0 0 28 57 54 2 33 7.8 20 89 -52 29 13 5 28 42 44 29 19 12 28 36 38 -0.13 - 82 0 0 29 1 33 2 33 4.4 21 89 -52 29 16 43 28 46 23 29 22 50 28 40 17 -0.13 - 81 0 0 29 4 52 2 33 0.8 22 90 -53 29 20 2 28 49 42 29 26 9 28 43 37 -0.13 - 80 0 0 29 7 52 2 32 57.0 23 90 -54 29 23 1 28 52 42 29 29 8 28 46 36 -0.13 - 79 0 0 29 10 31 2 32 53.2 24 91 -55 29 25 41 28 55 22 29 31 47 28 49 17 -0.13 - 78 0 0 29 12 52 2 32 49.2 25 91 -56 29 28 1 28 57 43 29 34 7 28 51 37 -0.13 - 77 0 0 29 14 52 2 32 45.1 26 92 -57 29 30 2 28 59 44 29 36 7 28 53 38 -0.14 - 76 0 0 29 16 33 2 32 40.8 26 92 -58 29 31 43 29 1 25 29 37 48 28 55 19 -0.14 - 75 0 0 29 17 55 2 32 36.5 27 93 -58 29 33 4 29 2 47 29 39 10 28 56 41 -0.14 - 74 0 0 29 18 57 2 32 32.0 28 93 -59 29 34 6 29 3 49 29 40 12 28 57 43 -0.14 - 73 0 0 29 19 40 2 32 27.4 29 94 -60 29 34 49 29 4 31 29 40 54 28 58 26 -0.14 - 72 0 0 29 20 3 2 32 22.7 30 94 -61 29 35 12 29 4 55 29 41 18 28 58 49 -0.14 - 71 0 0 29 20 7 2 32 17.8 31 95 -62 29 35 16 29 4 58 29 41 21 28 58 53 -0.14 - 70 0 0 29 19 51 2 32 12.8 32 95 -63 29 35 0 29 4 43 29 41 6 28 58 38 -0.14 - 69 0 0 29 19 16 2 32 7.7 32 96 -63 29 34 25 29 4 8 29 40 31 28 58 3 -0.14 - 68 0 0 29 18 22 2 32 2.5 33 96 -64 29 33 31 29 3 14 29 39 37 28 57 8 -0.14 - 67 0 0 29 17 9 2 31 57.2 34 97 -65 29 32 18 29 2 0 29 38 24 28 55 55 -0.14 - 66 0 0 29 15 36 2 31 51.8 35 97 -66 29 30 46 29 0 27 29 36 52 28 54 22 -0.14 - 65 0 0 29 13 44 2 31 46.2 36 98 -67 29 28 54 28 58 35 29 35 0 28 52 29 -0.14 - 64 0 0 29 11 33 2 31 40.5 37 99 -68 29 26 43 28 56 24 29 32 49 28 50 18 -0.14 - 63 0 0 29 9 3 2 31 34.7 38 99 -69 29 24 13 28 53 53 29 30 19 28 47 47 -0.14 - 62 0 0 29 6 13 2 31 28.8 38 100 -69 29 21 24 28 51 3 29 27 30 28 44 57 -0.14 - 61 0 0 29 3 5 2 31 22.8 39 100 -70 29 18 16 28 47 54 29 24 22 28 41 48 -0.14 - 60 0 0 28 59 37 2 31 16.7 40 101 -71 29 14 49 28 44 27 29 20 55 28 38 20 -0.14 - 59 0 0 28 55 51 2 31 10.4 41 101 -72 29 11 3 28 40 40 29 17 9 28 34 33 -0.14 - 58 0 0 28 51 45 2 31 4.1 42 102 -73 29 6 57 28 36 34 29 13 4 28 30 27 -0.14 - 57 0 0 28 47 21 2 30 57.6 43 102 -73 29 2 33 28 32 9 29 8 41 28 26 2 -0.14 - 56 0 0 28 42 37 2 30 51.0 43 103 -74 28 57 50 28 27 25 29 3 58 28 21 18 -0.14 - 55 0 0 28 37 35 2 30 44.4 44 104 -75 28 52 48 28 22 22 28 58 56 28 16 14 -0.14 - 54 0 0 28 32 14 2 30 37.6 45 104 -76 28 47 28 28 17 0 28 53 36 28 10 52 -0.14 - 53 0 0 28 26 33 2 30 30.7 46 105 -77 28 41 48 28 11 19 28 47 56 28 5 12 -0.14 - 52 0 0 28 20 35 2 30 23.7 47 105 -78 28 35 50 28 5 20 28 41 58 27 59 12 -0.14 - 51 0 0 28 14 17 2 30 16.5 48 106 -78 28 29 33 27 59 1 28 35 42 27 52 53 -0.14 - 50 0 0 28 7 41 2 30 9.3 49 106 -79 28 22 57 27 52 24 28 29 6 27 46 16 -0.14 - 49 0 0 28 0 46 2 30 2.0 49 107 -80 28 16 3 27 45 29 28 22 12 27 39 20 -0.14 - 48 0 0 27 53 32 2 29 54.6 50 108 -81 28 8 50 27 38 14 28 15 0 27 32 6 -0.14 - 47 0 0 27 46 0 2 29 47.0 51 108 -81 28 1 19 27 30 42 28 7 29 27 24 32 -0.14 - 46 0 0 27 38 9 2 29 39.4 52 109 -82 27 53 29 27 22 50 27 59 39 27 16 41 -0.14 - 45 0 0 27 30 0 2 29 31.6 53 110 -83 27 45 20 27 14 40 27 51 31 27 8 30 -0.14 - 44 0 0 27 21 32 2 29 23.8 54 110 -83 27 36 54 27 6 12 27 43 4 27 0 1 -0.14 - 43 0 0 27 12 46 2 29 15.9 55 111 -84 27 28 9 26 57 25 27 34 20 26 51 14 -0.14 - 42 0 0 27 3 42 2 29 7.8 55 112 -84 27 19 5 26 48 20 27 25 16 26 42 9 -0.14 - 41 0 0 26 54 19 2 28 59.7 56 112 -85 27 9 43 26 38 56 27 15 55 26 32 45 -0.14 - 40 0 0 26 44 39 2 28 51.4 57 113 -85 27 0 3 26 29 15 27 6 16 26 23 3 -0.14 - 39 0 0 26 34 40 2 28 43.1 58 114 -85 26 50 5 26 19 15 26 56 18 26 13 3 -0.14 - 38 0 0 26 24 23 2 28 34.7 59 115 -85 26 39 49 26 8 57 26 46 2 26 2 45 -0.14 - 37 0 0 26 13 48 2 28 26.2 60 115 -85 26 29 15 25 58 21 26 35 29 25 52 8 -0.14 - 36 0 0 26 2 55 2 28 17.5 61 116 -84 26 18 24 25 47 27 26 24 37 25 41 14 -0.14 - 35 0 0 25 51 44 2 28 8.8 61 117 -84 26 7 14 25 36 16 26 13 28 25 30 2 -0.14 - 34 0 0 25 40 16 2 28 0.0 62 118 -83 25 55 46 25 24 46 26 2 1 25 18 32 -0.14 - 33 0 0 25 28 30 2 27 51.1 63 119 -83 25 44 1 25 12 59 25 50 16 25 6 45 -0.14 - 32 0 0 25 16 26 2 27 42.1 64 120 -82 25 31 59 25 0 54 25 38 14 24 54 40 -0.14 - 31 0 0 25 4 5 2 27 33.1 65 121 -81 25 19 38 24 48 32 25 25 54 24 42 17 -0.14 - 30 0 0 24 51 27 2 27 23.9 66 122 -81 25 7 1 24 35 53 25 13 17 24 29 37 -0.14 - 29 0 0 24 38 31 2 27 14.7 67 123 -80 24 54 6 24 22 56 25 0 23 24 16 40 -0.14 - 28 0 0 24 25 18 2 27 5.3 67 124 -79 24 40 54 24 9 42 24 47 11 24 3 26 -0.14 - 27 0 0 24 11 48 2 26 55.9 68 125 -78 24 27 25 23 56 11 24 33 43 23 49 54 -0.14 - 26 0 0 23 58 1 2 26 46.4 69 126 -77 24 13 40 23 42 23 24 19 57 23 36 6 -0.14 - 25 0 0 23 43 58 2 26 36.9 70 127 -77 23 59 37 23 28 19 24 5 55 23 22 1 -0.14 - 24 0 0 23 29 37 2 26 27.2 71 129 -76 23 45 18 23 13 57 23 51 36 23 7 39 -0.14 - 23 0 0 23 15 1 2 26 17.5 72 130 -75 23 30 42 22 59 20 23 37 1 22 53 1 -0.14 - 22 0 0 23 0 7 2 26 7.7 72 132 -74 23 15 50 22 44 25 23 22 10 22 38 7 -0.14 - 21 0 0 22 44 58 2 25 57.8 73 134 -73 23 0 42 22 29 15 23 7 2 22 22 56 -0.14 - 20 0 0 22 29 33 2 25 47.9 74 135 -72 22 45 18 22 13 49 22 51 38 22 7 29 -0.14 - 19 0 0 22 13 52 2 25 37.9 75 137 -71 22 29 38 21 58 7 22 35 58 21 51 47 -0.14 - 18 0 0 21 57 55 2 25 27.8 76 140 -70 22 13 42 21 42 9 22 20 3 21 35 48 -0.14 - 17 0 0 21 41 42 2 25 17.7 76 142 -69 21 57 30 21 25 55 22 3 52 21 19 34 -0.14 - 16 0 0 21 25 15 2 25 7.5 77 145 -69 21 41 4 21 9 26 21 47 25 21 3 5 -0.14 - 15 0 0 21 8 32 2 24 57.3 78 148 -68 21 24 22 20 52 43 21 30 44 20 46 21 -0.14 - 14 0 0 20 51 34 2 24 47.0 79 151 -67 21 7 25 20 35 44 21 13 48 20 29 22 -0.14 - 13 0 0 20 34 22 2 24 36.6 79 155 -66 20 50 14 20 18 30 20 56 37 20 12 8 -0.14 - 12 0 0 20 16 55 2 24 26.2 80 159 -65 20 32 48 20 1 3 20 39 11 19 54 40 -0.14 - 11 0 0 19 59 14 2 24 15.7 80 164 -64 20 15 7 19 43 20 20 21 31 19 36 57 -0.14 - 10 0 0 19 41 18 2 24 5.2 81 169 -63 19 57 13 19 25 24 20 3 37 19 19 1 -0.14 - 9 0 0 19 23 9 2 23 54.7 81 175 -62 19 39 5 19 7 14 19 45 30 19 0 50 -0.14 - 8 0 0 19 4 47 2 23 44.1 82 182 -61 19 20 44 18 48 51 19 27 9 18 42 27 -0.14 - 7 0 0 18 46 11 2 23 33.5 82 188 -60 19 2 9 18 30 14 19 8 34 18 23 49 -0.14 - 6 0 0 18 27 22 2 23 22.8 82 196 -59 18 43 21 18 11 24 18 49 46 18 4 59 -0.14 - 5 0 0 18 8 21 2 23 12.1 82 203 -58 18 24 20 17 52 22 18 30 46 17 45 57 -0.14 - 4 0 0 17 49 7 2 23 1.4 82 210 -57 18 5 7 17 33 7 18 11 33 17 26 42 -0.14 - 3 0 0 17 29 41 2 22 50.7 82 217 -56 17 45 42 17 13 40 17 52 9 17 7 14 -0.14 - 2 0 0 17 10 3 2 22 39.9 81 223 -55 17 26 5 16 54 2 17 32 32 16 47 35 -0.14 - 1 0 0 16 50 13 2 22 29.1 81 229 -54 17 6 16 16 34 11 17 12 43 16 27 45 -0.14 0 0 0 16 30 13 2 22 18.3 80 234 -53 16 46 16 16 14 10 16 52 44 16 7 43 -0.14 1 0 0 16 10 1 2 22 7.5 80 239 -53 16 26 5 15 53 58 16 32 33 15 47 30 -0.14 2 0 0 15 49 39 2 21 56.7 79 244 -52 16 5 44 15 33 35 16 12 12 15 27 7 -0.14 3 0 0 15 29 7 2 21 45.9 78 247 -51 15 45 12 15 13 2 15 51 41 15 6 34 -0.14 4 0 0 15 8 25 2 21 35.1 78 251 -50 15 24 31 14 52 19 15 30 59 14 45 51 -0.14 5 0 0 14 47 33 2 21 24.3 77 254 -49 15 3 40 14 31 27 15 10 9 14 24 58 -0.14 6 0 0 14 26 32 2 21 13.5 76 256 -48 14 42 39 14 10 25 14 49 9 14 3 57 -0.14 7 0 0 14 5 23 2 21 2.7 75 259 -47 14 21 30 13 49 15 14 28 0 13 42 46 -0.14 8 0 0 13 44 5 2 20 51.9 75 261 -46 14 0 13 13 27 57 14 6 43 13 21 28 -0.14 9 0 0 13 22 39 2 20 41.2 74 263 -45 13 38 48 13 6 30 13 45 17 13 0 1 -0.14 10 0 0 13 1 5 2 20 30.5 73 264 -44 13 17 14 12 44 56 13 23 45 12 38 27 -0.14 11 0 0 12 39 24 2 20 19.8 72 266 -43 12 55 34 12 23 15 13 2 4 12 16 45 -0.14 12 0 0 12 17 37 2 20 9.1 71 267 -42 12 33 47 12 1 27 12 40 18 11 54 57 -0.13 13 0 0 11 55 43 2 19 58.5 70 269 -41 12 11 54 11 39 33 12 18 24 11 33 3 -0.13 14 0 0 11 33 43 2 19 47.9 69 270 -40 11 49 54 11 17 33 11 56 25 11 11 3 -0.13 15 0 0 11 11 38 2 19 37.4 68 271 -39 11 27 49 10 55 27 11 34 20 10 48 57 -0.13 16 0 0 10 49 27 2 19 26.9 67 272 -38 11 5 39 10 33 17 11 12 10 10 26 46 -0.13 17 0 0 10 27 12 2 19 16.5 66 273 -37 10 43 24 10 11 1 10 49 55 10 4 31 -0.13 18 0 0 10 4 53 2 19 6.1 65 274 -36 10 21 5 9 48 42 10 27 36 9 42 11 -0.13 19 0 0 9 42 30 2 18 55.8 64 275 -35 9 58 42 9 26 19 10 5 14 9 19 48 -0.13 20 0 0 9 20 4 2 18 45.6 63 275 -34 9 36 16 9 3 52 9 42 47 8 57 22 -0.13 21 0 0 8 57 35 2 18 35.4 62 276 -33 9 13 47 8 41 23 9 20 18 8 34 53 -0.13 22 0 0 8 35 3 2 18 25.3 61 277 -32 8 51 16 8 18 52 8 57 47 8 12 21 -0.13 23 0 0 8 12 30 2 18 15.3 60 277 -31 8 28 42 7 56 18 8 35 14 7 49 48 -0.13 24 0 0 7 49 55 2 18 5.4 59 278 -30 8 6 8 7 33 43 8 12 39 7 27 13 -0.13 25 0 0 7 27 19 2 17 55.6 58 278 -29 7 43 32 7 11 8 7 50 3 7 4 37 -0.13 26 0 0 7 4 43 2 17 45.8 57 279 -27 7 20 55 6 48 32 7 27 27 6 42 1 -0.13 27 0 0 6 42 7 2 17 36.2 56 279 -26 6 58 19 6 25 55 7 4 50 6 19 25 -0.13 28 0 0 6 19 31 2 17 26.6 55 280 -25 6 35 43 6 3 20 6 42 14 5 56 49 -0.13 29 0 0 5 56 56 2 17 17.2 54 280 -24 6 13 8 5 40 45 6 19 39 5 34 15 -0.13 30 0 0 5 34 23 2 17 7.9 53 281 -23 5 50 34 5 18 12 5 57 5 5 11 42 -0.13 31 0 0 5 11 51 2 16 58.7 52 281 -22 5 28 2 4 55 41 5 34 33 4 49 10 -0.13 32 0 0 4 49 22 2 16 49.6 51 281 -21 5 5 33 4 33 12 5 12 3 4 26 42 -0.13 33 0 0 4 26 56 2 16 40.6 50 282 -20 4 43 6 4 10 46 4 49 37 4 4 16 -0.13 34 0 0 4 4 33 2 16 31.7 49 282 -19 4 20 43 3 48 23 4 27 13 3 41 53 -0.13 35 0 0 3 42 13 2 16 23.0 48 282 -18 3 58 23 3 26 4 4 4 53 3 19 35 -0.13 36 0 0 3 19 59 2 16 14.4 47 282 -17 3 36 8 3 3 50 3 42 38 2 57 21 -0.13 37 0 0 2 57 49 2 16 6.0 46 282 -16 3 13 57 2 41 41 3 20 27 2 35 11 -0.13 38 0 0 2 35 44 2 15 57.7 45 283 -15 2 51 52 2 19 36 2 58 21 2 13 7 -0.13 39 0 0 2 13 45 2 15 49.5 44 283 -14 2 29 52 1 57 38 2 36 22 1 51 9 -0.13 40 0 0 1 51 52 2 15 41.5 43 283 -13 2 7 59 1 35 45 2 14 28 1 29 17 -0.13 41 0 0 1 30 5 2 15 33.6 42 283 -12 1 46 12 1 14 0 1 52 41 1 7 31 -0.13 42 0 0 1 8 26 2 15 25.9 41 283 -11 1 24 32 0 52 21 1 31 1 0 45 53 -0.13 43 0 0 0 46 55 2 15 18.3 40 283 -10 1 3 0 0 30 50 1 9 28 0 24 23 -0.13 44 0 0 0 25 31 2 15 10.9 39 284 -9 0 41 36 0 9 28 0 48 4 0 3 0 -0.13 45 0 0 0 4 16 2 15 3.7 38 284 -8 0 20 20 - 0 11 47 0 26 47 - 0 18 14 -0.13 46 0 0 - 0 16 50 2 14 56.6 37 284 -7 - 0 0 47 - 0 32 52 0 5 40 - 0 39 19 -0.13 47 0 0 - 0 37 47 2 14 49.7 36 284 -6 - 0 21 45 - 0 53 48 - 0 15 18 - 1 0 15 -0.13 48 0 0 - 0 58 34 2 14 43.0 35 284 -5 - 0 42 33 - 1 14 34 - 0 36 6 - 1 21 1 -0.13 49 0 0 - 1 19 11 2 14 36.4 34 284 -4 - 1 3 10 - 1 35 10 - 0 56 44 - 1 41 36 -0.13 50 0 0 - 1 39 37 2 14 30.0 33 284 -3 - 1 23 38 - 1 55 36 - 1 17 11 - 2 2 1 -0.13 51 0 0 - 1 59 52 2 14 23.8 32 284 -2 - 1 43 54 - 2 15 50 - 1 37 28 - 2 22 15 -0.13 52 0 0 - 2 19 56 2 14 17.8 31 284 -1 - 2 3 58 - 2 35 53 - 1 57 33 - 2 42 18 -0.13 53 0 0 - 2 39 48 2 14 11.9 30 284 0 - 2 23 51 - 2 55 44 - 2 17 26 - 3 2 8 -0.13 54 0 0 - 2 59 27 2 14 6.2 29 284 1 - 2 43 32 - 3 15 23 - 2 37 7 - 3 21 47 -0.13 55 0 0 - 3 18 54 2 14 0.7 28 284 2 - 3 3 0 - 3 34 49 - 2 56 35 - 3 41 12 -0.13 56 0 0 - 3 38 8 2 13 55.4 27 284 3 - 3 22 14 - 3 54 1 - 3 15 51 - 4 0 25 -0.13 57 0 0 - 3 57 9 2 13 50.3 26 284 4 - 3 41 16 - 4 13 1 - 3 34 53 - 4 19 24 -0.13 58 0 0 - 4 15 56 2 13 45.4 25 284 5 - 4 0 4 - 4 31 47 - 3 53 41 - 4 38 9 -0.13 59 0 0 - 4 34 28 2 13 40.6 24 284 6 - 4 18 38 - 4 50 19 - 4 12 15 - 4 56 41 -0.13 60 0 0 - 4 52 47 2 13 36.1 23 284 7 - 4 36 57 - 5 8 36 - 4 30 35 - 5 14 57 -0.13 61 0 0 - 5 10 50 2 13 31.8 22 284 8 - 4 55 1 - 5 26 38 - 4 48 40 - 5 32 59 -0.13 62 0 0 - 5 28 38 2 13 27.6 21 284 9 - 5 12 51 - 5 44 25 - 5 6 29 - 5 50 46 -0.13 63 0 0 - 5 46 11 2 13 23.6 20 284 11 - 5 30 25 - 6 1 57 - 5 24 4 - 6 8 17 -0.13 64 0 0 - 6 3 28 2 13 19.9 19 283 12 - 5 47 43 - 6 19 13 - 5 41 22 - 6 25 33 -0.13 65 0 0 - 6 20 29 2 13 16.3 18 283 13 - 6 4 45 - 6 36 13 - 5 58 25 - 6 42 32 -0.14 66 0 0 - 6 37 14 2 13 12.9 17 283 14 - 6 21 30 - 6 52 56 - 6 15 11 - 6 59 15 -0.14 67 0 0 - 6 53 42 2 13 9.7 16 283 15 - 6 37 59 - 7 9 23 - 6 31 40 - 7 15 42 -0.14 68 0 0 - 7 9 52 2 13 6.8 15 283 16 - 6 54 11 - 7 25 33 - 6 47 53 - 7 31 51 -0.14 69 0 0 - 7 25 46 2 13 4.0 14 283 17 - 7 10 6 - 7 41 25 - 7 3 48 - 7 47 43 -0.14 70 0 0 - 7 41 22 2 13 1.4 13 283 18 - 7 25 43 - 7 57 0 - 7 19 25 - 8 3 18 -0.14 71 0 0 - 7 56 40 2 12 59.0 12 283 19 - 7 41 3 - 8 12 18 - 7 34 45 - 8 18 34 -0.14 72 0 0 - 8 11 41 2 12 56.8 11 283 20 - 7 56 4 - 8 27 17 - 7 49 47 - 8 33 33 -0.14 73 0 0 - 8 26 23 2 12 54.8 10 282 21 - 8 10 47 - 8 41 58 - 8 4 30 - 8 48 14 -0.14 74 0 0 - 8 40 46 2 12 53.1 9 282 22 - 8 25 11 - 8 56 20 - 8 18 55 - 9 2 35 -0.14 75 0 0 - 8 54 51 2 12 51.5 8 282 23 - 8 39 17 - 9 10 24 - 8 33 1 - 9 16 39 -0.15 76 0 0 - 9 8 36 2 12 50.1 7 282 24 - 8 53 4 - 9 24 8 - 8 46 48 - 9 30 23 -0.15 77 0 0 - 9 22 3 2 12 48.9 6 282 25 - 9 6 31 - 9 37 33 - 9 0 16 - 9 43 48 -0.15 78 0 0 - 9 35 10 2 12 47.9 5 282 26 - 9 19 39 - 9 50 39 - 9 13 25 - 9 56 53 -0.16 79 0 0 - 9 47 57 2 12 47.1 4 282 27 - 9 32 27 -10 3 26 - 9 26 13 -10 9 39 -0.17 80 0 0 -10 0 24 2 12 46.5 3 281 28 - 9 44 56 -10 15 52 - 9 38 42 -10 22 5 -0.18 81 0 0 -10 12 32 2 12 46.1 2 281 29 - 9 57 4 -10 27 59 - 9 50 51 -10 34 11 -0.22 82 0 0 -10 24 19 2 12 45.9 1 281 30 -10 8 53 -10 39 45 -10 2 40 -10 45 57 -0.39 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 504-027734 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 32 10.1150 DE: +10 44 36.887 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 32 10.1150 DE: +10 44 36.887 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1428) Mombasa asteroid class: approx. diameter [km]: 55 approx. diameter ["]: 0.043 distance from Earth [AU]: 1.78750 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 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): 0.016", 0.001", 75.287° remarks: * orbital elements for (1428)Mombasa : Mean anomaly = 63.4202836783 deg Arg. of pericenter = 252.0179714957 deg Long. of node = 115.6303103464 deg Inclination = 17.3031862674 deg Eccentricity = 0.1419575112 Semimajor axis = 2.8093755437 AU Perihelion dist = 2.4105635834 AU Mag: H = 10.31, G = 0.15 Epoch of elements : MJD 60280.09937500 TDT (2023 Dec 02.0994) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Oct09,5.54,2023,12,2,2.388178,0.043523,0.129910,-5.354366,1.791463,-0.002780,0.001273,0.000001,0.000000 -8.1253,10.7272,141.47,-21.89,False UCAC4 504-027734,6.53614306,10.7435797,0.00,12.47,0.00,0.0,0,,6.55845735,10.7271588,2.11,0.00,0,0,0 1428,Mombasa,14.41,55.400,1.7875,0,0,-1.787,8.82,,2.4,0 0,63.3995,2023,12,2,252.0180,115.6303,17.3032,0.14196,2.80938,2.41056,10.32,5.0,0.15 1.201,0.0157,0.0006,75,0.0157,Known errors,-1.00,0,-1,-1 20231202_027734,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:11 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org