IOTA/IOTA-ES occultation update for (335) Roberta / TYC 0840-00493-1 event on 2023 Mar 14, 17:19 UT Visible from China, Russia Summary ------- On 2023 Mar 14 UT, the 95.6 km diameter asteroid (335) Roberta will occult a 12.2 mag star in the constellation Leo for observers along a path across China, Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.24 mag to 13.05 mag (the magnitude of the asteroid) for at most 8.390 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: 100 * date and approx. time of event: 2023 Mar 14, 17:10 - 2023 Mar 14, 17:27 * geocentric midpoint of event [JD]: 2460018.22160671 * magnitude of target star: 12.23 * magnitude drop [mag]: 1.24 * estimated maximum duration [s]: 8.390 * Moon: 54 % sunlit, 108° distance * Sun: 157° distance * rough path description: China, Russia The occultation path -------------------- * approximate projected width [km]: 111 * 1 sigma uncertainty interval [path widths]: +/- 0.06 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.004", 106°) * approx speed of asteroid's shadow [km/s]: 11.3976 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0840-00493-1 by 335 Roberta on 2023 Mar 14 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 - 29 0 0 .. .. .... .. .. .. .. .. .. 56 22 10 .. .. .. 56 25 57 .. .. .. .... - 28 0 0 56 3 39 17 27 9.0 0 68 18 56 35 51 55 31 39 56 39 37 55 27 56 .... - 27 0 0 56 17 2 17 27 8.9 1 69 18 56 49 7 55 45 8 56 52 53 55 41 26 -0.53 - 26 0 0 56 30 1 17 27 8.7 2 70 17 57 2 0 55 58 13 57 5 45 55 54 31 -0.54 - 25 0 0 56 42 36 17 27 8.5 2 71 16 57 14 29 56 10 54 57 18 13 56 7 13 -0.55 - 24 0 0 56 54 47 17 27 8.2 3 72 16 57 26 34 56 23 11 57 30 17 56 19 31 -0.56 - 23 0 0 57 6 35 17 27 7.8 3 72 15 57 38 16 56 35 5 57 41 59 56 31 25 -0.56 - 22 0 0 57 18 0 17 27 7.4 4 73 15 57 49 35 56 46 36 57 53 17 56 42 57 -0.56 - 21 0 0 57 29 2 17 27 6.9 5 74 14 58 0 32 56 57 43 58 4 13 56 54 5 -0.56 - 20 0 0 57 39 42 17 27 6.3 5 75 14 58 11 6 57 8 28 58 14 47 57 4 51 -0.56 - 19 0 0 57 49 59 17 27 5.7 6 76 13 58 21 18 57 18 51 58 24 58 57 15 14 -0.57 - 18 0 0 57 59 55 17 27 5.1 6 77 13 58 31 9 57 28 52 58 34 48 57 25 15 -0.57 - 17 0 0 58 9 29 17 27 4.4 7 78 12 58 40 37 57 38 30 58 44 16 57 34 54 -0.57 - 16 0 0 58 18 41 17 27 3.6 7 78 11 58 49 45 57 47 47 58 53 23 57 44 12 -0.57 - 15 0 0 58 27 32 17 27 2.8 8 79 11 58 58 31 57 56 43 59 2 8 57 53 8 -0.57 - 14 0 0 58 36 2 17 27 1.9 8 80 10 59 6 56 58 5 17 59 10 33 58 1 43 -0.57 - 13 0 0 58 44 11 17 27 1.0 9 81 10 59 15 1 58 13 31 59 18 37 58 9 57 -0.57 - 12 0 0 58 51 59 17 27 0.0 9 82 9 59 22 45 58 21 23 59 26 21 58 17 50 -0.57 - 11 0 0 58 59 28 17 26 59.0 10 83 9 59 30 10 58 28 55 59 33 45 58 25 22 -0.57 - 10 0 0 59 6 36 17 26 57.9 11 84 8 59 37 14 58 36 7 59 40 49 58 32 35 -0.57 - 9 0 0 59 13 24 17 26 56.8 11 84 8 59 43 58 58 42 59 59 47 33 58 39 27 -0.57 - 8 0 0 59 19 52 17 26 55.6 12 85 7 59 50 23 58 49 31 59 53 57 58 45 59 -0.57 - 7 0 0 59 26 1 17 26 54.4 12 86 7 59 56 28 58 55 43 60 0 2 58 52 11 -0.57 - 6 0 0 59 31 50 17 26 53.2 13 87 6 60 2 14 59 1 35 60 5 47 58 58 4 -0.57 - 5 0 0 59 37 20 17 26 51.9 13 88 6 60 7 41 59 7 8 60 11 14 59 3 38 -0.57 - 4 0 0 59 42 31 17 26 50.6 14 89 5 60 12 49 59 12 22 60 16 22 59 8 52 -0.57 - 3 0 0 59 47 23 17 26 49.2 14 90 5 60 17 38 59 17 16 60 21 11 59 13 46 -0.57 - 2 0 0 59 51 56 17 26 47.7 15 90 4 60 22 9 59 21 52 60 25 41 59 18 22 -0.57 - 1 0 0 59 56 10 17 26 46.3 15 91 4 60 26 21 59 26 9 60 29 53 59 22 39 -0.57 0 0 0 60 0 6 17 26 44.8 16 92 3 60 30 15 59 30 7 60 33 46 59 26 38 -0.58 1 0 0 60 3 43 17 26 43.2 16 93 3 60 33 50 59 33 46 60 37 21 59 30 17 -0.58 2 0 0 60 7 2 17 26 41.6 17 94 2 60 37 7 59 37 7 60 40 38 59 33 38 -0.58 3 0 0 60 10 3 17 26 40.0 17 95 2 60 40 6 59 40 9 60 43 37 59 36 41 -0.58 4 0 0 60 12 46 17 26 38.3 18 96 1 60 42 48 59 42 53 60 46 18 59 39 25 -0.58 5 0 0 60 15 11 17 26 36.6 18 97 1 60 45 11 59 45 19 60 48 41 59 41 51 -0.58 6 0 0 60 17 17 17 26 34.8 19 98 0 60 47 16 59 47 27 60 50 47 59 43 59 -0.58 7 0 0 60 19 6 17 26 33.0 19 98 0 60 49 4 59 49 16 60 52 34 59 45 48 -0.58 8 0 0 60 20 37 17 26 31.2 19 99 -1 60 50 34 59 50 48 60 54 4 59 47 20 -0.58 9 0 0 60 21 50 17 26 29.3 20 100 -1 60 51 47 59 52 2 60 55 17 59 48 34 -0.58 10 0 0 60 22 45 17 26 27.3 20 101 -2 60 52 41 59 52 57 60 56 11 59 49 29 -0.58 11 0 0 60 23 22 17 26 25.4 21 102 -2 60 53 19 59 53 35 60 56 49 59 50 7 -0.58 12 0 0 60 23 42 17 26 23.4 21 103 -3 60 53 38 59 53 55 60 57 8 59 50 27 -0.58 13 0 0 60 23 44 17 26 21.3 22 104 -3 60 53 41 59 53 57 60 57 11 59 50 29 -0.58 14 0 0 60 23 29 17 26 19.2 22 105 -4 60 53 25 59 53 41 60 56 55 59 50 13 -0.58 15 0 0 60 22 55 17 26 17.1 23 106 -4 60 52 53 59 53 7 60 56 23 59 49 39 -0.58 16 0 0 60 22 4 17 26 14.9 23 107 -5 60 52 2 59 52 15 60 55 33 59 48 47 -0.58 17 0 0 60 20 56 17 26 12.7 24 107 -5 60 50 54 59 51 6 60 54 25 59 47 38 -0.58 18 0 0 60 19 29 17 26 10.4 24 108 -6 60 49 29 59 49 38 60 53 0 59 46 10 -0.58 19 0 0 60 17 45 17 26 8.1 25 109 -6 60 47 46 59 47 53 60 51 17 59 44 25 -0.58 20 0 0 60 15 43 17 26 5.7 25 110 -7 60 45 46 59 45 50 60 49 16 59 42 21 -0.58 21 0 0 60 13 23 17 26 3.3 26 111 -7 60 43 27 59 43 28 60 46 58 59 40 0 -0.58 22 0 0 60 10 46 17 26 0.8 26 112 -8 60 40 51 59 40 49 60 44 23 59 37 20 -0.58 23 0 0 60 7 50 17 25 58.3 27 113 -8 60 37 58 59 37 51 60 41 29 59 34 22 -0.58 24 0 0 60 4 36 17 25 55.8 27 114 -9 60 34 46 59 34 36 60 38 18 59 31 6 -0.58 25 0 0 60 1 5 17 25 53.2 28 115 -9 60 31 17 59 31 2 60 34 48 59 27 32 -0.58 26 0 0 59 57 15 17 25 50.6 28 116 -10 60 27 29 59 27 10 60 31 1 59 23 40 -0.58 27 0 0 59 53 7 17 25 47.9 29 117 -10 60 23 23 59 22 59 60 26 56 59 19 29 -0.58 28 0 0 59 48 40 17 25 45.1 29 118 -11 60 19 0 59 18 30 60 22 33 59 14 59 -0.58 29 0 0 59 43 55 17 25 42.3 29 119 -11 60 14 18 59 13 42 60 17 51 59 10 11 -0.58 30 0 0 59 38 51 17 25 39.5 30 120 -12 60 9 17 59 8 35 60 12 51 59 5 4 -0.58 31 0 0 59 33 29 17 25 36.6 30 120 -12 60 3 58 59 3 10 60 7 32 58 59 38 -0.58 32 0 0 59 27 48 17 25 33.6 31 121 -13 59 58 20 58 57 25 60 1 55 58 53 53 -0.58 33 0 0 59 21 48 17 25 30.6 31 122 -13 59 52 24 58 51 22 59 55 59 58 47 49 -0.58 34 0 0 59 15 29 17 25 27.5 32 123 -14 59 46 9 58 44 59 59 49 44 58 41 26 -0.58 35 0 0 59 8 51 17 25 24.4 32 124 -14 59 39 34 58 38 17 59 43 10 58 34 44 -0.58 36 0 0 59 1 53 17 25 21.2 33 125 -15 59 32 40 58 31 15 59 36 17 58 27 41 -0.58 37 0 0 58 54 36 17 25 18.0 33 126 -15 59 25 27 58 23 54 59 29 4 58 20 20 -0.58 38 0 0 58 46 59 17 25 14.7 34 127 -16 59 17 55 58 16 13 59 21 32 58 12 38 -0.58 39 0 0 58 39 2 17 25 11.3 34 128 -16 59 10 2 58 8 11 59 13 40 58 4 36 -0.58 40 0 0 58 30 45 17 25 7.9 35 129 -17 59 1 50 57 59 50 59 5 28 57 56 14 -0.58 41 0 0 58 22 8 17 25 4.4 35 130 -17 58 53 18 57 51 8 58 56 56 57 47 32 -0.58 42 0 0 58 13 10 17 25 0.8 36 131 -18 58 44 25 57 42 6 58 48 4 57 38 29 -0.59 43 0 0 58 3 52 17 24 57.2 36 132 -18 58 35 12 57 32 42 58 38 52 57 29 5 -0.59 44 0 0 57 54 13 17 24 53.5 37 133 -19 58 25 38 57 22 58 58 29 19 57 19 20 -0.59 45 0 0 57 44 13 17 24 49.8 37 134 -20 58 15 43 57 12 53 58 19 24 57 9 15 -0.59 46 0 0 57 33 52 17 24 45.9 38 135 -20 58 5 28 57 2 27 58 9 9 56 58 47 -0.59 47 0 0 57 23 9 17 24 42.0 38 136 -21 57 54 50 56 51 39 57 58 33 56 47 59 -0.59 48 0 0 57 12 5 17 24 38.1 39 137 -21 57 43 52 56 40 29 57 47 35 56 36 48 -0.59 49 0 0 57 0 39 17 24 34.0 39 138 -22 57 32 31 56 28 57 57 36 15 56 25 16 -0.59 50 0 0 56 48 50 17 24 29.9 40 139 -22 57 20 49 56 17 3 57 24 34 56 13 21 -0.59 51 0 0 56 36 40 17 24 25.7 40 141 -23 57 8 45 56 4 47 57 12 30 56 1 4 -0.59 52 0 0 56 24 7 17 24 21.4 41 142 -23 56 56 18 55 52 8 57 0 4 55 48 24 -0.59 53 0 0 56 11 11 17 24 17.0 41 143 -24 56 43 28 55 39 6 56 47 15 55 35 22 -0.59 54 0 0 55 57 53 17 24 12.6 42 144 -25 56 30 16 55 25 41 56 34 3 55 21 56 -0.59 55 0 0 55 44 11 17 24 8.1 42 145 -25 56 16 40 55 11 53 56 20 28 55 8 8 -0.59 56 0 0 55 30 6 17 24 3.4 43 146 -26 56 2 41 54 57 41 56 6 30 54 53 55 -0.59 57 0 0 55 15 37 17 23 58.7 43 147 -26 55 48 19 54 43 6 55 52 9 54 39 19 -0.59 58 0 0 55 0 44 17 23 54.0 44 148 -27 55 33 33 54 28 7 55 37 23 54 24 20 -0.59 59 0 0 54 45 27 17 23 49.1 44 149 -27 55 18 23 54 12 44 55 22 14 54 8 56 -0.59 60 0 0 54 29 46 17 23 44.1 45 150 -28 55 2 48 53 56 56 55 6 40 53 53 7 -0.59 61 0 0 54 13 41 17 23 39.0 45 152 -29 54 46 49 53 40 44 54 50 42 53 36 55 -0.59 62 0 0 53 57 11 17 23 33.9 46 153 -29 54 30 26 53 24 8 54 34 20 53 20 17 -0.59 63 0 0 53 40 16 17 23 28.6 46 154 -30 54 13 38 53 7 6 54 17 32 53 3 15 -0.59 64 0 0 53 22 56 17 23 23.3 47 155 -31 53 56 24 52 49 39 54 0 20 52 45 47 -0.59 65 0 0 53 5 10 17 23 17.8 47 156 -31 53 38 46 52 31 47 53 42 42 52 27 55 -0.59 66 0 0 52 47 0 17 23 12.3 48 158 -32 53 20 42 52 13 30 53 24 39 52 9 37 -0.59 67 0 0 52 28 23 17 23 6.6 48 159 -32 53 2 12 51 54 47 53 6 10 51 50 53 -0.59 68 0 0 52 9 21 17 23 0.9 49 160 -33 52 43 17 51 35 39 52 47 16 51 31 44 -0.59 69 0 0 51 49 54 17 22 55.0 49 162 -34 52 23 56 51 16 4 52 27 55 51 12 9 -0.59 70 0 0 51 30 0 17 22 49.1 50 163 -34 52 4 9 50 56 4 52 8 9 50 52 8 -0.59 71 0 0 51 9 40 17 22 43.0 50 164 -35 51 43 56 50 35 38 51 47 56 50 31 41 -0.59 72 0 0 50 48 54 17 22 36.8 51 166 -36 51 23 16 50 14 45 51 27 18 50 10 47 -0.59 73 0 0 50 27 42 17 22 30.6 51 167 -36 51 2 10 49 53 27 51 6 13 49 49 28 -0.59 74 0 0 50 6 3 17 22 24.2 52 168 -37 50 40 38 49 31 42 50 44 41 49 27 42 -0.59 75 0 0 49 43 58 17 22 17.7 52 170 -38 50 18 40 49 9 31 50 22 43 49 5 31 -0.59 76 0 0 49 21 27 17 22 11.1 53 171 -38 49 56 14 48 46 53 50 0 19 48 42 53 -0.59 77 0 0 48 58 29 17 22 4.3 53 173 -39 49 33 23 48 23 50 49 37 28 48 19 48 -0.59 78 0 0 48 35 5 17 21 57.5 54 174 -40 49 10 5 48 0 20 49 14 10 47 56 18 -0.59 79 0 0 48 11 15 17 21 50.6 54 176 -40 48 46 20 47 36 24 48 50 27 47 32 21 -0.59 80 0 0 47 46 58 17 21 43.5 55 178 -41 48 22 9 47 12 2 48 26 17 47 7 58 -0.59 81 0 0 47 22 15 17 21 36.3 55 179 -42 47 57 32 46 47 14 48 1 40 46 43 9 -0.59 82 0 0 46 57 7 17 21 29.1 55 181 -42 47 32 29 46 22 0 47 36 37 46 17 55 -0.59 83 0 0 46 31 32 17 21 21.7 56 183 -43 47 7 0 45 56 20 47 11 9 45 52 15 -0.59 84 0 0 46 5 32 17 21 14.2 56 184 -44 46 41 4 45 30 15 46 45 14 45 26 9 -0.59 85 0 0 45 39 6 17 21 6.6 57 186 -44 46 14 44 45 3 45 46 18 54 44 59 38 -0.59 86 0 0 45 12 16 17 20 58.9 57 188 -45 45 47 58 44 36 49 45 52 8 44 32 42 -0.59 87 0 0 44 45 0 17 20 51.1 57 190 -46 45 20 46 44 9 29 45 24 58 44 5 22 -0.59 88 0 0 44 17 20 17 20 43.1 58 192 -46 44 53 10 43 41 45 44 57 22 43 37 37 -0.59 89 0 0 43 49 15 17 20 35.1 58 194 -47 44 25 9 43 13 36 44 29 22 43 9 28 -0.59 90 0 0 43 20 46 17 20 27.0 58 196 -48 43 56 44 42 45 4 44 0 57 42 40 55 -0.59 91 0 0 42 51 54 17 20 18.7 59 198 -48 43 27 56 42 16 9 43 32 9 42 11 59 -0.59 92 0 0 42 22 39 17 20 10.4 59 200 -49 42 58 44 41 46 50 43 2 58 41 42 41 -0.59 93 0 0 41 53 1 17 20 2.0 59 202 -50 42 29 9 41 17 10 42 33 23 41 13 0 -0.59 94 0 0 41 23 2 17 19 53.5 59 204 -50 41 59 12 40 47 7 42 3 27 40 42 57 -0.59 95 0 0 40 52 40 17 19 44.8 59 206 -51 41 28 54 40 16 44 41 33 8 40 12 33 -0.59 96 0 0 40 21 58 17 19 36.1 59 208 -52 40 58 14 39 45 59 41 2 28 39 41 49 -0.59 97 0 0 39 50 56 17 19 27.4 60 210 -52 40 27 13 39 14 55 40 31 28 39 10 44 -0.59 98 0 0 39 19 34 17 19 18.5 60 212 -53 39 55 53 38 43 31 40 0 8 38 39 20 -0.59 99 0 0 38 47 53 17 19 9.6 60 215 -54 39 24 13 38 11 49 39 28 28 38 7 38 -0.59 100 0 0 38 15 53 17 19 0.6 60 217 -54 38 52 15 37 39 48 38 56 30 37 35 37 -0.59 101 0 0 37 43 36 17 18 51.5 60 219 -55 38 19 59 37 7 31 38 24 14 37 3 19 -0.59 102 0 0 37 11 3 17 18 42.3 59 221 -55 37 47 26 36 34 57 37 51 41 36 30 45 -0.59 103 0 0 36 38 14 17 18 33.1 59 223 -56 37 14 36 36 2 7 37 18 52 35 57 56 -0.59 104 0 0 36 5 9 17 18 23.9 59 225 -56 36 41 32 35 29 3 36 45 47 35 24 51 -0.58 105 0 0 35 31 50 17 18 14.6 59 228 -57 36 8 13 34 55 45 36 12 28 34 51 33 -0.58 106 0 0 34 58 18 17 18 5.3 59 230 -57 35 34 40 34 22 13 35 38 56 34 18 2 -0.58 107 0 0 34 24 34 17 17 55.9 59 232 -58 35 0 55 33 48 30 35 5 10 33 44 19 -0.58 108 0 0 33 50 38 17 17 46.5 58 234 -58 34 26 58 33 14 35 34 31 13 33 10 24 -0.58 109 0 0 33 16 32 17 17 37.0 58 236 -59 33 52 50 32 40 30 33 57 5 32 36 19 -0.58 110 0 0 32 42 16 17 17 27.6 58 238 -59 33 18 32 32 6 16 33 22 47 32 2 5 -0.58 111 0 0 32 7 52 17 17 18.1 57 240 -59 32 44 6 31 31 54 32 48 21 31 27 43 -0.58 112 0 0 31 33 20 17 17 8.6 57 242 -60 32 9 32 30 57 25 32 13 46 30 53 14 -0.58 113 0 0 30 58 42 17 16 59.1 56 243 -60 31 34 51 30 22 49 31 39 5 30 18 39 -0.58 114 0 0 30 23 58 17 16 49.7 56 245 -60 31 0 5 29 48 8 31 4 18 29 43 58 -0.58 115 0 0 29 49 10 17 16 40.2 55 247 -60 30 25 14 29 13 23 30 29 27 29 9 14 -0.58 116 0 0 29 14 19 17 16 30.8 55 249 -61 29 50 19 28 38 35 29 54 32 28 34 26 -0.58 117 0 0 28 39 26 17 16 21.4 54 250 -61 29 15 22 28 3 45 29 19 35 27 59 36 -0.58 118 0 0 28 4 31 17 16 12.0 54 252 -61 28 40 24 27 28 54 28 44 36 27 24 46 -0.58 119 0 0 27 29 37 17 16 2.7 53 253 -61 28 5 26 26 54 4 28 9 37 26 49 56 -0.58 120 0 0 26 54 43 17 15 53.4 52 255 -61 27 30 28 26 19 14 27 34 39 26 15 7 -0.58 121 0 0 26 19 52 17 15 44.1 52 256 -61 26 55 32 25 44 27 26 59 43 25 40 21 -0.58 122 0 0 25 45 4 17 15 34.9 51 258 -61 26 20 40 25 9 44 26 24 50 25 5 38 -0.58 123 0 0 25 10 21 17 15 25.8 50 259 -61 25 45 51 24 35 5 25 50 1 24 30 59 -0.58 124 0 0 24 35 42 17 15 16.8 49 260 -60 25 11 8 24 0 32 25 15 17 23 56 26 -0.58 125 0 0 24 1 11 17 15 7.8 49 261 -60 24 36 31 23 26 5 24 40 40 23 22 0 -0.58 126 0 0 23 26 46 17 14 59.0 48 263 -60 24 2 2 22 51 46 24 6 9 22 47 42 -0.58 127 0 0 22 52 31 17 14 50.2 47 264 -59 23 27 41 22 17 35 23 31 48 22 13 32 -0.58 128 0 0 22 18 24 17 14 41.5 46 265 -59 22 53 29 21 43 34 22 57 35 21 39 32 -0.58 129 0 0 21 44 29 17 14 33.0 45 266 -59 22 19 28 21 9 44 22 23 34 21 5 42 -0.58 130 0 0 21 10 45 17 14 24.5 44 267 -58 21 45 38 20 36 6 21 49 43 20 32 5 -0.58 131 0 0 20 37 14 17 14 16.2 44 268 -58 21 12 1 20 2 41 21 16 6 19 58 40 -0.58 132 0 0 20 3 56 17 14 7.9 43 269 -57 20 38 38 19 29 29 20 42 41 19 25 29 -0.58 133 0 0 19 30 53 17 13 59.9 42 269 -57 20 5 28 18 56 32 20 9 31 18 52 32 -0.58 134 0 0 18 58 6 17 13 51.9 41 270 -56 19 32 35 18 23 50 19 36 37 18 19 52 -0.58 135 0 0 18 25 35 17 13 44.1 40 271 -56 18 59 57 17 51 25 19 3 59 17 47 27 -0.58 136 0 0 17 53 21 17 13 36.4 39 272 -55 18 27 37 17 19 18 18 31 38 17 15 20 -0.58 137 0 0 17 21 25 17 13 28.9 38 272 -54 17 55 35 16 47 28 17 59 35 16 43 31 -0.58 138 0 0 16 49 48 17 13 21.5 37 273 -54 17 23 52 16 15 58 17 27 51 16 12 2 -0.58 139 0 0 16 18 32 17 13 14.3 36 274 -53 16 52 29 15 44 47 16 56 27 15 40 52 -0.58 140 0 0 15 47 35 17 13 7.3 35 274 -52 16 21 26 15 13 57 16 25 24 15 10 3 -0.58 141 0 0 15 17 1 17 13 0.4 34 275 -51 15 50 45 14 43 29 15 54 42 14 39 35 -0.58 142 0 0 14 46 48 17 12 53.7 33 275 -51 15 20 26 14 13 23 15 24 22 14 9 30 -0.58 143 0 0 14 16 59 17 12 47.2 32 276 -50 14 50 30 13 43 40 14 54 25 13 39 47 -0.58 144 0 0 13 47 33 17 12 40.9 31 276 -49 14 20 58 13 14 20 14 24 52 13 10 29 -0.58 145 0 0 13 18 31 17 12 34.7 30 277 -48 13 51 50 12 45 25 13 55 43 12 41 34 -0.58 146 0 0 12 49 55 17 12 28.7 29 277 -47 13 23 7 12 16 55 13 27 0 12 13 5 -0.58 147 0 0 12 21 44 17 12 22.9 28 278 -46 12 54 49 11 48 50 12 58 42 11 45 1 -0.58 148 0 0 11 53 59 17 12 17.3 27 278 -46 12 26 58 11 21 12 12 30 50 11 17 23 -0.58 149 0 0 11 26 41 17 12 11.9 26 278 -45 11 59 34 10 54 0 12 3 25 10 50 12 -0.58 150 0 0 10 59 51 17 12 6.7 25 279 -44 11 32 37 10 27 16 11 36 27 10 23 28 -0.58 151 0 0 10 33 28 17 12 1.7 24 279 -43 11 6 8 10 0 59 11 9 58 9 57 13 -0.58 152 0 0 10 7 34 17 11 56.9 23 279 -42 10 40 8 9 35 11 10 43 57 9 31 25 -0.58 153 0 0 9 42 9 17 11 52.3 22 280 -41 10 14 37 9 9 52 10 18 25 9 6 7 -0.58 154 0 0 9 17 13 17 11 47.9 21 280 -40 9 49 35 8 45 2 9 53 22 8 41 18 -0.59 155 0 0 8 52 47 17 11 43.7 20 280 -39 9 25 3 8 20 42 9 28 50 8 16 58 -0.59 156 0 0 8 28 52 17 11 39.7 19 280 -38 9 1 2 7 56 52 9 4 47 7 53 9 -0.59 157 0 0 8 5 27 17 11 35.9 18 280 -37 8 37 31 7 33 33 8 41 16 7 29 51 -0.59 158 0 0 7 42 33 17 11 32.3 17 281 -36 8 14 32 7 10 45 8 18 16 7 7 3 -0.59 159 0 0 7 20 11 17 11 28.9 16 281 -35 7 52 4 6 48 29 7 55 48 6 44 47 -0.59 160 0 0 6 58 21 17 11 25.7 15 281 -34 7 30 8 6 26 44 7 33 51 6 23 3 -0.59 161 0 0 6 37 2 17 11 22.8 14 281 -34 7 8 45 6 5 31 7 12 27 6 1 51 -0.60 162 0 0 6 16 17 17 11 20.0 13 281 -33 6 47 54 5 44 51 6 51 36 5 41 11 -0.60 163 0 0 5 56 4 17 11 17.5 12 281 -32 6 27 36 5 24 43 6 31 17 5 21 4 -0.60 164 0 0 5 36 24 17 11 15.2 11 282 -31 6 7 51 5 5 8 6 11 32 5 1 30 -0.61 165 0 0 5 17 18 17 11 13.0 10 282 -30 5 48 40 4 46 7 5 52 20 4 42 29 -0.61 166 0 0 4 58 46 17 11 11.1 9 282 -29 5 30 2 4 27 39 5 33 42 4 24 2 -0.61 167 0 0 4 40 47 17 11 9.4 8 282 -28 5 11 59 4 9 45 5 15 38 4 6 8 -0.62 168 0 0 4 23 22 17 11 7.9 7 282 -27 4 54 30 3 52 25 4 58 8 3 48 49 -0.63 169 0 0 4 6 32 17 11 6.7 6 282 -26 4 37 35 3 35 39 4 41 13 3 32 3 -0.64 170 0 0 3 50 16 17 11 5.6 5 282 -25 4 21 15 3 19 27 4 24 52 3 15 52 -0.65 171 0 0 3 34 35 17 11 4.7 4 282 -24 4 5 30 3 3 50 4 9 7 3 0 15 -0.68 172 0 0 3 19 29 17 11 4.1 3 282 -23 3 50 20 2 48 48 3 53 56 2 45 14 -0.71 173 0 0 3 4 58 17 11 3.6 2 282 -22 3 35 45 2 34 21 3 39 21 2 30 47 -0.80 174 0 0 2 51 2 17 11 3.4 1 282 -21 3 21 45 2 20 29 3 25 21 2 16 55 -1.15 Uncertainty in time = +/- 1 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 0840-00493-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 14 15.4567 DE: +12 29 21.111 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 14 15.4566 DE: +12 29 21.111 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (335) Roberta asteroid class: approx. diameter [km]: 96 approx. diameter ["]: 0.075 distance from Earth [AU]: 1.74990 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#73 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): 0.010", 0.004", 106.074° remarks: * orbital elements for (335)Roberta : Mean anomaly = 247.5516176289 deg Arg. of pericenter = 139.8126773722 deg Long. of node = 148.4244595840 deg Inclination = 5.1025735188 deg Eccentricity = 0.1722668888 Semimajor axis = 2.4758056467 AU Perihelion dist = 2.0493063107 AU Mag: H = 9.11, G = 0.15 Epoch of elements : MJD 60017.72152778 TDT (2023 Mar 14.7215) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#732023Feb07,8.39,2023,3,14,17.318561,0.232252,0.446522,-5.707979,2.967208,0.001994,-0.000907,0.000001,0.000000 82.0321,12.3735,-77.48,-2.44,False TYC 0840-00493-1,10.23762686,12.4891973,0.00,12.23,0.00,0.0,0,,10.25847901,12.3734767,1.24,0.00,0,0,0 335,Roberta,13.05,95.6,1.7499,0,0,-1.957,14.90,,4.8,0 0,247.3691,2023,3,14,139.8127,148.4245,5.1026,0.17227,2.47581,2.04931,9.11,5.0,0.15 1.058,0.0100,0.0040,106,0.0044,Known errors,-1.00,-1,-1,-1 20230314_0493-1,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:48 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org