IOTA/IOTA-ES occultation update for (167) Urda / UCAC4-557-022813 event on 2023 Mar 01, 12:27 UT Visible from China, SE Asia Summary ------- On 2023 Mar 01 UT, the 39.6 km diameter asteroid (167) Urda will occult a 11.8 mag star in the constellation Orion for observers along a path across China, SE Asia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.81 mag to 14.54 mag (the magnitude of the asteroid) for at most 7.180 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 Mar 01, 12:07 - 2023 Mar 01, 12:46 * geocentric midpoint of event [JD]: 2460005.01868175 * magnitude of target star: 11.81 * magnitude drop [mag]: 2.81 * estimated maximum duration [s]: 7.180 * Moon: 71 % sunlit, 8° distance * Sun: 110° distance * rough path description: China, SE Asia The occultation path -------------------- * approximate projected width [km]: 40 * 1 sigma uncertainty interval [path widths]: +/- 0.21 * 1 sigma uncertainty interval [seconds]: +/- 6.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.003", 89°) * approx speed of asteroid's shadow [km/s]: 5.5142 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-557-022813 by 167 Urda on 2023 Mar 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 26 0 0 -12 52 30 12 7 37.4 1 68 65 -13 4 5 -12 40 55 -13 9 1 -12 35 59 .... 27 0 0 -12 28 35 12 7 37.9 2 68 64 -12 40 11 -12 16 59 -12 45 7 -12 12 2 -0.07 28 0 0 -12 4 21 12 7 38.8 3 68 63 -12 15 58 -11 52 44 -12 20 55 -11 47 47 -0.05 29 0 0 -11 39 50 12 7 40.1 4 67 62 -11 51 28 -11 28 11 -11 56 25 -11 23 14 -0.04 30 0 0 -11 15 1 12 7 41.8 5 67 61 -11 26 40 -11 3 21 -11 31 38 -10 58 23 -0.03 31 0 0 -10 49 55 12 7 44.0 6 67 60 -11 1 35 -10 38 14 -11 6 33 -10 33 16 -0.03 32 0 0 -10 24 32 12 7 46.5 7 67 59 -10 36 13 -10 12 50 -10 41 12 -10 7 51 -0.03 33 0 0 - 9 58 53 12 7 49.5 8 67 58 -10 10 35 - 9 47 10 -10 15 34 - 9 42 11 -0.02 34 0 0 - 9 32 58 12 7 52.9 9 66 57 - 9 44 41 - 9 21 14 - 9 49 41 - 9 16 15 -0.02 35 0 0 - 9 6 48 12 7 56.7 11 66 56 - 9 18 32 - 8 55 3 - 9 23 32 - 8 50 3 -0.02 36 0 0 - 8 40 23 12 8 0.9 12 66 55 - 8 52 8 - 8 28 37 - 8 57 9 - 8 23 37 -0.02 37 0 0 - 8 13 44 12 8 5.6 13 66 54 - 8 25 30 - 8 1 57 - 8 30 31 - 7 56 56 -0.02 38 0 0 - 7 46 51 12 8 10.7 14 66 53 - 7 58 38 - 7 35 4 - 8 3 39 - 7 30 2 -0.02 39 0 0 - 7 19 45 12 8 16.3 15 66 52 - 7 31 33 - 7 7 57 - 7 36 35 - 7 2 55 -0.02 40 0 0 - 6 52 27 12 8 22.3 16 66 51 - 7 4 15 - 6 40 38 - 7 9 17 - 6 35 36 -0.02 41 0 0 - 6 24 57 12 8 28.7 17 65 50 - 6 36 46 - 6 13 7 - 6 41 48 - 6 8 5 -0.02 42 0 0 - 5 57 15 12 8 35.6 18 65 49 - 6 9 5 - 5 45 25 - 6 14 8 - 5 40 22 -0.02 43 0 0 - 5 29 23 12 8 43.0 19 65 48 - 5 41 14 - 5 17 32 - 5 46 17 - 5 12 29 -0.02 44 0 0 - 5 1 22 12 8 50.8 21 65 47 - 5 13 13 - 4 49 30 - 5 18 16 - 4 44 27 -0.01 45 0 0 - 4 33 11 12 8 59.0 22 65 46 - 4 45 3 - 4 21 19 - 4 50 6 - 4 16 15 -0.01 46 0 0 - 4 4 52 12 9 7.7 23 65 45 - 4 16 44 - 3 52 59 - 4 21 48 - 3 47 55 -0.01 47 0 0 - 3 36 25 12 9 16.8 24 65 44 - 3 48 18 - 3 24 32 - 3 53 22 - 3 19 28 -0.01 48 0 0 - 3 7 51 12 9 26.3 25 65 43 - 3 19 45 - 2 55 58 - 3 24 49 - 2 50 54 -0.01 49 0 0 - 2 39 12 12 9 36.4 26 65 42 - 2 51 6 - 2 27 18 - 2 56 10 - 2 22 14 -0.01 50 0 0 - 2 10 27 12 9 46.8 27 65 41 - 2 22 21 - 1 58 33 - 2 27 26 - 1 53 28 -0.01 51 0 0 - 1 41 38 12 9 57.7 29 65 39 - 1 53 32 - 1 29 43 - 1 58 37 - 1 24 39 -0.01 52 0 0 - 1 12 45 12 10 9.0 30 65 38 - 1 24 39 - 1 0 50 - 1 29 44 - 0 55 45 -0.01 53 0 0 - 0 43 49 12 10 20.7 31 65 37 - 0 55 44 - 0 31 54 - 1 0 49 - 0 26 50 -0.01 54 0 0 - 0 14 52 12 10 32.9 32 65 36 - 0 26 47 - 0 2 57 - 0 31 51 0 2 8 -0.01 55 0 0 0 14 7 12 10 45.5 33 65 35 0 2 12 0 26 2 - 0 2 53 0 31 6 -0.01 56 0 0 0 43 5 12 10 58.5 34 65 34 0 31 10 0 55 0 0 26 5 1 0 5 -0.01 57 0 0 1 12 3 12 11 11.9 35 65 33 1 0 8 1 23 58 0 55 3 1 29 2 -0.01 58 0 0 1 40 59 12 11 25.7 37 65 32 1 29 4 1 52 54 1 23 59 1 57 58 -0.01 59 0 0 2 9 52 12 11 39.9 38 65 31 1 57 58 2 21 47 1 52 53 2 26 52 -0.01 60 0 0 2 38 42 12 11 54.5 39 65 29 2 26 48 2 50 37 2 21 44 2 55 41 -0.01 61 0 0 3 7 28 12 12 9.4 40 65 28 2 55 34 3 19 22 2 50 30 3 24 26 -0.01 62 0 0 3 36 8 12 12 24.7 41 65 27 3 24 15 3 48 2 3 19 11 3 53 6 -0.01 63 0 0 4 4 42 12 12 40.4 42 65 26 3 52 49 4 16 36 3 47 45 4 21 40 0.00 64 0 0 4 33 9 12 12 56.5 44 65 25 4 21 17 4 45 2 4 16 13 4 50 6 0.00 65 0 0 5 1 29 12 13 12.9 45 65 24 4 49 36 5 13 21 4 44 33 5 18 24 0.00 66 0 0 5 29 39 12 13 29.6 46 65 23 5 17 47 5 41 30 5 12 44 5 46 33 0.00 67 0 0 5 57 39 12 13 46.6 47 65 21 5 45 48 6 9 30 5 40 45 6 14 33 0.00 68 0 0 6 25 29 12 14 4.0 48 65 20 6 13 39 6 37 19 6 8 36 6 42 22 0.00 69 0 0 6 53 7 12 14 21.6 49 65 19 6 41 18 7 4 57 6 36 16 7 9 59 0.00 70 0 0 7 20 34 12 14 39.6 51 65 18 7 8 45 7 32 22 7 3 43 7 37 24 0.00 71 0 0 7 47 47 12 14 57.8 52 65 17 7 35 59 7 59 34 7 30 57 8 4 36 0.00 72 0 0 8 14 46 12 15 16.3 53 65 16 8 2 59 8 26 32 7 57 58 8 31 33 0.00 73 0 0 8 41 30 12 15 35.1 54 66 15 8 29 44 8 53 16 8 24 44 8 58 16 0.00 74 0 0 9 7 59 12 15 54.1 55 66 14 8 56 14 9 19 44 8 51 14 9 24 44 0.00 75 0 0 9 34 12 12 16 13.3 56 66 12 9 22 28 9 45 55 9 17 28 9 50 55 0.00 76 0 0 10 0 7 12 16 32.8 57 66 11 9 48 25 10 11 50 9 43 25 10 16 49 0.01 77 0 0 10 25 45 12 16 52.4 59 66 10 10 14 4 10 37 27 10 9 5 10 42 25 0.01 78 0 0 10 51 5 12 17 12.3 60 66 9 10 39 25 11 2 45 10 34 26 11 7 43 0.01 79 0 0 11 16 6 12 17 32.3 61 66 8 11 4 27 11 27 44 10 59 29 11 32 42 0.01 80 0 0 11 40 46 12 17 52.6 62 66 7 11 29 9 11 52 24 11 24 12 11 57 21 0.01 81 0 0 12 5 7 12 18 12.9 63 66 6 11 53 31 12 16 43 11 48 34 12 21 40 0.01 82 0 0 12 29 7 12 18 33.5 64 67 5 12 17 32 12 40 42 12 12 36 12 45 38 0.01 83 0 0 12 52 45 12 18 54.1 65 67 4 12 41 12 13 4 19 12 36 16 13 9 15 0.01 84 0 0 13 16 2 12 19 14.9 67 67 2 13 4 29 13 27 34 12 59 34 13 32 29 0.01 85 0 0 13 38 55 12 19 35.9 68 67 1 13 27 25 13 50 26 13 22 30 13 55 21 0.01 86 0 0 14 1 26 12 19 56.9 69 67 0 13 49 57 14 12 56 13 45 3 14 17 50 0.01 87 0 0 14 23 34 12 20 18.0 70 67 -1 14 12 6 14 35 2 14 7 12 14 39 55 0.01 88 0 0 14 45 17 12 20 39.2 71 67 -2 14 33 51 14 56 44 14 28 58 15 1 37 0.02 89 0 0 15 6 36 12 21 0.5 72 67 -3 14 55 11 15 18 2 14 50 19 15 22 54 0.02 90 0 0 15 27 31 12 21 21.8 73 67 -4 15 16 7 15 38 55 15 11 16 15 43 46 0.02 91 0 0 15 48 0 12 21 43.2 74 67 -5 15 36 38 15 59 23 15 31 47 16 4 13 0.02 92 0 0 16 8 4 12 22 4.7 75 67 -6 15 56 43 16 19 25 15 51 53 16 24 15 0.02 93 0 0 16 27 42 12 22 26.2 76 67 -7 16 16 23 16 39 2 16 11 33 16 43 51 0.02 94 0 0 16 46 55 12 22 47.7 78 67 -8 16 35 36 16 58 13 16 30 47 17 3 2 0.02 95 0 0 17 5 40 12 23 9.2 79 66 -10 16 54 24 17 16 57 16 49 35 17 21 45 0.02 96 0 0 17 24 0 12 23 30.7 80 66 -11 17 12 44 17 35 15 17 7 56 17 40 2 0.02 97 0 0 17 41 52 12 23 52.2 81 65 -12 17 30 38 17 53 6 17 25 51 17 57 53 0.02 98 0 0 17 59 17 12 24 13.7 82 64 -13 17 48 5 18 10 30 17 43 18 18 15 16 0.02 99 0 0 18 16 15 12 24 35.2 83 63 -14 18 5 4 18 27 26 18 0 18 18 32 12 0.02 100 0 0 18 32 46 12 24 56.7 84 62 -15 18 21 36 18 43 55 18 16 51 18 48 41 0.02 101 0 0 18 48 49 12 25 18.1 85 59 -16 18 37 40 18 59 57 18 32 56 19 4 42 0.02 102 0 0 19 4 24 12 25 39.5 86 55 -17 18 53 17 19 15 31 18 48 33 19 20 15 0.03 103 0 0 19 19 31 12 26 0.9 87 48 -18 19 8 26 19 30 37 19 3 42 19 35 21 0.03 104 0 0 19 34 11 12 26 22.2 87 35 -19 19 23 6 19 45 15 19 18 23 19 49 58 0.03 105 0 0 19 48 22 12 26 43.4 88 7 -20 19 37 19 19 59 25 19 32 36 20 4 8 0.04 106 0 0 20 2 5 12 27 4.6 88 328 -21 19 51 3 20 13 7 19 46 21 20 17 49 0.04 107 0 0 20 15 20 12 27 25.7 87 301 -22 20 4 19 20 26 20 19 59 37 20 31 2 0.03 108 0 0 20 28 6 12 27 46.7 87 287 -23 20 17 6 20 39 6 20 12 25 20 43 47 0.03 109 0 0 20 40 24 12 28 7.6 86 280 -24 20 29 25 20 51 23 20 24 45 20 56 3 0.03 110 0 0 20 52 14 12 28 28.5 85 276 -25 20 41 16 21 3 11 20 36 36 21 7 51 0.03 111 0 0 21 3 35 12 28 49.2 84 274 -26 20 52 38 21 14 31 20 47 58 21 19 11 0.03 112 0 0 21 14 27 12 29 9.9 83 272 -27 21 3 32 21 25 23 20 58 52 21 30 2 0.03 113 0 0 21 24 51 12 29 30.4 82 271 -28 21 13 57 21 35 46 21 9 18 21 40 24 0.03 114 0 0 21 34 47 12 29 50.9 81 270 -29 21 23 53 21 45 40 21 19 15 21 50 19 0.03 115 0 0 21 44 14 12 30 11.2 80 270 -30 21 33 21 21 55 6 21 28 43 21 59 44 0.03 116 0 0 21 53 12 12 30 31.4 79 269 -31 21 42 20 22 4 4 21 37 42 22 8 41 0.03 117 0 0 22 1 42 12 30 51.5 78 269 -32 21 50 51 22 12 33 21 46 13 22 17 10 0.03 118 0 0 22 9 43 12 31 11.5 77 269 -33 21 58 53 22 20 33 21 54 16 22 25 10 0.03 119 0 0 22 17 16 12 31 31.3 76 269 -34 22 6 26 22 28 5 22 1 50 22 32 42 0.03 120 0 0 22 24 20 12 31 51.1 75 269 -35 22 13 31 22 35 9 22 8 55 22 39 45 0.03 121 0 0 22 30 56 12 32 10.6 74 269 -36 22 20 8 22 41 44 22 15 32 22 46 20 0.03 122 0 0 22 37 4 12 32 30.1 73 269 -37 22 26 16 22 47 51 22 21 40 22 52 27 0.03 123 0 0 22 42 43 12 32 49.4 72 269 -38 22 31 56 22 53 30 22 27 20 22 58 5 0.03 124 0 0 22 47 54 12 33 8.5 71 269 -39 22 37 7 22 58 40 22 32 32 23 3 15 0.03 125 0 0 22 52 36 12 33 27.5 70 270 -40 22 41 50 23 3 22 22 37 15 23 7 57 0.03 126 0 0 22 56 50 12 33 46.4 69 270 -41 22 46 5 23 7 36 22 41 30 23 12 11 0.03 127 0 0 23 0 36 12 34 5.1 68 270 -42 22 49 51 23 11 21 22 45 16 23 15 56 0.03 128 0 0 23 3 54 12 34 23.6 67 270 -43 22 53 9 23 14 39 22 48 35 23 19 14 0.03 129 0 0 23 6 44 12 34 42.0 66 271 -44 22 55 59 23 17 29 22 51 25 23 22 3 0.03 130 0 0 23 9 6 12 35 0.2 65 271 -45 22 58 21 23 19 50 22 53 47 23 24 25 0.03 131 0 0 23 10 59 12 35 18.2 64 271 -46 23 0 15 23 21 44 22 55 41 23 26 18 0.03 132 0 0 23 12 25 12 35 36.1 63 272 -47 23 1 41 23 23 9 22 57 7 23 27 44 0.03 133 0 0 23 13 23 12 35 53.8 62 272 -48 23 2 39 23 24 7 22 58 5 23 28 41 0.03 134 0 0 23 13 53 12 36 11.3 61 272 -49 23 3 9 23 24 37 22 58 35 23 29 11 0.03 135 0 0 23 13 55 12 36 28.7 60 273 -49 23 3 12 23 24 39 22 58 37 23 29 14 0.03 136 0 0 23 13 30 12 36 45.8 59 273 -50 23 2 46 23 24 14 22 58 12 23 28 48 0.03 137 0 0 23 12 37 12 37 2.8 58 273 -51 23 1 53 23 23 21 22 57 19 23 27 55 0.02 138 0 0 23 11 16 12 37 19.6 57 274 -52 23 0 32 23 22 0 22 55 58 23 26 35 0.02 139 0 0 23 9 28 12 37 36.2 56 274 -53 22 58 44 23 20 12 22 54 9 23 24 47 0.02 140 0 0 23 7 12 12 37 52.6 55 274 -54 22 56 28 23 17 57 22 51 53 23 22 31 0.02 141 0 0 23 4 29 12 38 8.8 54 275 -55 22 53 45 23 15 14 22 49 10 23 19 49 0.02 142 0 0 23 1 19 12 38 24.8 53 275 -56 22 50 34 23 12 4 22 45 59 23 16 39 0.02 143 0 0 22 57 41 12 38 40.6 52 276 -57 22 46 56 23 8 26 22 42 21 23 13 1 0.02 144 0 0 22 53 36 12 38 56.2 51 276 -58 22 42 50 23 4 22 22 38 15 23 8 57 0.02 145 0 0 22 49 4 12 39 11.6 50 276 -59 22 38 18 22 59 50 22 33 43 23 4 26 0.02 146 0 0 22 44 5 12 39 26.8 49 277 -60 22 33 18 22 54 52 22 28 43 22 59 27 0.02 147 0 0 22 38 39 12 39 41.8 48 277 -61 22 27 52 22 49 26 22 23 16 22 54 2 0.02 148 0 0 22 32 46 12 39 56.5 47 277 -62 22 21 58 22 43 34 22 17 22 22 48 10 0.02 149 0 0 22 26 26 12 40 11.0 46 278 -63 22 15 38 22 37 14 22 11 2 22 41 51 0.02 150 0 0 22 19 40 12 40 25.3 45 278 -63 22 8 51 22 30 28 22 4 14 22 35 5 0.02 151 0 0 22 12 26 12 40 39.4 44 279 -64 22 1 37 22 23 16 21 57 0 22 27 53 0.02 152 0 0 22 4 47 12 40 53.2 43 279 -65 21 53 56 22 15 37 21 49 19 22 20 14 0.02 153 0 0 21 56 40 12 41 6.8 42 279 -66 21 45 49 22 7 31 21 41 12 22 12 9 0.02 154 0 0 21 48 8 12 41 20.2 41 280 -67 21 37 16 21 58 59 21 32 38 22 3 37 0.02 155 0 0 21 39 9 12 41 33.3 40 280 -68 21 28 16 21 50 1 21 23 38 21 54 39 0.01 156 0 0 21 29 44 12 41 46.1 39 280 -69 21 18 51 21 40 37 21 14 12 21 45 15 0.01 157 0 0 21 19 53 12 41 58.7 38 281 -70 21 8 59 21 30 47 21 4 20 21 35 26 0.01 158 0 0 21 9 36 12 42 11.1 37 281 -70 20 58 41 21 20 31 20 54 2 21 25 10 0.01 159 0 0 20 58 53 12 42 23.2 36 282 -71 20 47 57 21 9 49 20 43 17 21 14 28 0.01 160 0 0 20 47 44 12 42 35.0 35 282 -72 20 36 48 20 58 41 20 32 8 21 3 21 0.01 161 0 0 20 36 10 12 42 46.6 34 282 -73 20 25 13 20 47 8 20 20 32 20 51 48 0.01 162 0 0 20 24 11 12 42 57.9 33 283 -74 20 13 12 20 35 10 20 8 32 20 39 50 0.01 163 0 0 20 11 46 12 43 8.9 32 283 -75 20 0 47 20 22 46 19 56 5 20 27 27 0.01 164 0 0 19 58 57 12 43 19.6 31 283 -75 19 47 56 20 9 57 19 43 14 20 14 39 0.01 165 0 0 19 45 42 12 43 30.1 30 284 -76 19 34 40 19 56 44 19 29 58 20 1 26 0.01 166 0 0 19 32 3 12 43 40.2 29 284 -77 19 21 0 19 43 5 19 16 17 19 47 48 0.01 167 0 0 19 17 59 12 43 50.1 28 284 -77 19 6 55 19 29 3 19 2 12 19 33 46 0.01 168 0 0 19 3 31 12 43 59.6 27 285 -78 18 52 26 19 14 35 18 47 42 19 19 19 0.00 169 0 0 18 48 38 12 44 8.9 26 285 -78 18 37 32 18 59 44 18 32 48 19 4 28 0.00 170 0 0 18 33 22 12 44 17.8 25 285 -79 18 22 15 18 44 29 18 17 30 18 49 13 0.00 171 0 0 18 17 42 12 44 26.5 24 286 -79 18 6 34 18 28 50 18 1 49 18 33 35 0.00 172 0 0 18 1 38 12 44 34.8 23 286 -80 17 50 29 18 12 48 17 45 44 18 17 33 0.00 173 0 0 17 45 12 12 44 42.8 22 286 -80 17 34 1 17 56 22 17 29 16 18 1 8 0.00 174 0 0 17 28 22 12 44 50.5 21 287 -80 17 17 11 17 39 34 17 12 24 17 44 20 0.00 175 0 0 17 11 10 12 44 57.8 20 287 -80 16 59 57 17 22 23 16 55 10 17 27 9 0.00 176 0 0 16 53 35 12 45 4.8 19 287 -80 16 42 21 17 4 49 16 37 34 17 9 36 0.00 177 0 0 16 35 38 12 45 11.5 18 287 -80 16 24 23 16 46 53 16 19 36 16 51 41 0.00 178 0 0 16 17 20 12 45 17.8 17 288 -79 16 6 4 16 28 36 16 1 15 16 33 24 0.00 179 0 0 15 58 40 12 45 23.8 16 288 -79 15 47 22 16 9 57 15 42 34 16 14 46 -0.01 180 0 0 15 39 39 12 45 29.4 15 288 -79 15 28 20 15 50 57 15 23 31 15 55 46 -0.01 -179 0 0 15 20 16 12 45 34.7 14 289 -78 15 8 57 15 31 36 15 4 7 15 36 26 -0.01 -178 0 0 15 0 34 12 45 39.6 13 289 -77 14 49 13 15 11 55 14 44 23 15 16 45 -0.01 -177 0 0 14 40 31 12 45 44.2 12 289 -77 14 29 10 14 51 53 14 24 19 14 56 44 -0.01 -176 0 0 14 20 9 12 45 48.4 11 289 -76 14 8 46 14 31 32 14 3 55 14 36 23 -0.01 -175 0 0 13 59 28 12 45 52.2 10 290 -75 13 48 4 14 10 52 13 43 12 14 15 43 -0.01 -174 0 0 13 38 27 12 45 55.7 9 290 -75 13 27 2 13 49 52 13 22 11 13 54 44 -0.02 -173 0 0 13 17 9 12 45 58.8 8 290 -74 13 5 43 13 28 34 13 0 50 13 33 27 -0.02 -172 0 0 12 55 32 12 46 1.5 7 290 -73 12 44 5 13 6 59 12 39 12 13 11 51 -0.02 -171 0 0 12 33 37 12 46 3.8 6 290 -72 12 22 9 12 45 5 12 17 16 12 49 58 -0.03 -170 0 0 12 11 26 12 46 5.7 5 291 -71 11 59 57 12 22 55 11 55 3 12 27 48 -0.03 -169 0 0 11 48 57 12 46 7.3 4 291 -70 11 37 28 12 0 27 11 32 34 12 5 21 -0.04 -168 0 0 11 26 13 12 46 8.4 3 291 -69 11 14 42 11 37 44 11 9 48 11 42 38 -0.05 -167 0 0 11 3 13 12 46 9.2 2 291 -69 10 51 41 11 14 45 10 46 47 11 19 40 -0.09 -166 0 0 10 39 58 12 46 9.6 0 291 -68 10 28 25 10 51 31 10 23 30 10 56 26 -0.29 Uncertainty in time = +/- 6 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4-557-022813 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 02 24.3409 DE: +21 12 05.406 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 02 24.3408 DE: +21 12 05.406 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (167) Urda asteroid class: approx. diameter [km]: 40 approx. diameter ["]: 0.022 distance from Earth [AU]: 2.46660 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 date of fit: 2023 Feb 07 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): 0.019", 0.003", 88.91° remarks: * orbital elements for (167)Urda : Mean anomaly = 174.1561349121 deg Arg. of pericenter = 128.1856797075 deg Long. of node = 166.1061751231 deg Inclination = 2.2175425121 deg Eccentricity = 0.0375897563 Semimajor axis = 2.8520414157 AU Perihelion dist = 2.7448338739 AU Mag: H = 9.25, G = 0.15 Epoch of elements : MJD 60004.51875000 TDT (2023 Mar 01.5187) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Feb07,7.18,2023,3,1,12.448362,0.005523,-0.024453,3.036954,0.680936,0.005541,0.000040,0.000000,0.000000 105.1688,21.2017,-3.63,-7.57,False UCAC4-557-022813,6.04009470,21.2015016,0.00,11.81,0.00,0.0,0,,6.06317978,21.2016805,2.82,0.00,0,0,0 167,Urda,14.54,39.6,2.4666,0,0,0.775,2.43,,1.8,0 0,174.0500,2023,3,1,128.1857,166.1062,2.2175,0.03759,2.85204,2.74483,9.28,5.0,0.15 1.213,0.0190,0.0028,89,0.0047,Known errors,-1.00,-1,-1,-1 20230301_022813,59990.86 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:42 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org