IOTA/IOTA-ES occultation update for (990) Yerkes / TYC 1422-01113-1 event on 2024 Jan 12, 04:35 UT Visible from Summary ------- On 2024 Jan 12 UT, the 20.431 km diameter asteroid (990) Yerkes will occult a 11.9 mag star in the constellation Leo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.67 mag to 16.52 mag (the magnitude of the asteroid) for at most 2.180 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: 2024 Jan 12, 04:25 - 2024 Jan 12, 04:45 * geocentric midpoint of event [JD]: 2460321.69146208 * magnitude of target star: 11.86 * magnitude drop [mag]: 4.67 * estimated maximum duration [s]: 2.180 * Moon: 1 % sunlit, 154° distance * Sun: 143° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 24 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.002", 119°) * approx speed of asteroid's shadow [km/s]: 9.3513 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1422-01113-1 by 990 Yerkes on 2024 Jan 12 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 -143 0 0 49 52 39 4 45 12.4 0 60 -27 50 0 14 49 45 6 50 2 45 49 42 35 .... -142 0 0 50 15 4 4 45 12.3 1 61 -27 50 22 36 50 7 31 50 25 8 50 5 1 -0.57 -141 0 0 50 37 1 4 45 12.0 2 62 -28 50 44 33 50 29 30 50 47 4 50 27 0 -0.60 -140 0 0 50 58 33 4 45 11.6 2 62 -29 51 6 3 50 51 3 51 8 33 50 48 33 -0.61 -139 0 0 51 19 38 4 45 11.1 3 63 -29 51 27 7 51 12 10 51 29 37 51 9 40 -0.62 -138 0 0 51 40 17 4 45 10.5 4 64 -30 51 47 44 51 32 50 51 50 14 51 30 21 -0.62 -137 0 0 52 0 30 4 45 9.7 5 65 -31 52 7 56 51 53 4 52 10 25 51 50 36 -0.62 -136 0 0 52 20 17 4 45 8.9 5 65 -31 52 27 41 52 12 53 52 30 10 52 10 25 -0.62 -135 0 0 52 39 38 4 45 7.9 6 66 -32 52 47 1 52 32 15 52 49 29 52 29 48 -0.63 -134 0 0 52 58 34 4 45 6.8 7 67 -32 53 5 56 52 51 12 53 8 23 52 48 45 -0.63 -133 0 1 53 17 4 4 45 5.7 7 68 -33 53 24 24 53 9 44 53 26 52 53 7 17 -0.63 -132 0 1 53 35 9 4 45 4.4 8 69 -33 53 42 28 53 27 50 53 44 55 53 25 24 -0.63 -131 0 1 53 52 48 4 45 3.0 9 69 -34 54 0 6 53 45 31 54 2 33 53 43 6 -0.63 -130 0 1 54 10 3 4 45 1.6 9 70 -34 54 17 20 54 2 48 54 19 46 54 0 22 -0.63 -129 0 1 54 26 54 4 45 0.1 10 71 -35 54 34 9 54 19 39 54 36 34 54 17 14 -0.63 -128 0 1 54 43 19 4 44 58.4 11 72 -35 54 50 33 54 36 6 54 52 58 54 33 42 -0.63 -127 0 1 54 59 21 4 44 56.7 11 73 -36 55 6 33 54 52 9 55 8 58 54 49 45 -0.63 -126 0 1 55 14 58 4 44 54.9 12 74 -36 55 22 9 55 7 48 55 24 33 55 5 25 -0.63 -125 0 1 55 30 12 4 44 53.1 12 74 -37 55 37 22 55 23 3 55 39 45 55 20 40 -0.63 -124 0 1 55 45 2 4 44 51.2 13 75 -37 55 52 10 55 37 54 55 54 33 55 35 32 -0.64 -123 0 1 55 59 29 4 44 49.2 14 76 -38 56 6 36 55 52 23 56 8 58 55 50 0 -0.64 -122 0 1 56 13 33 4 44 47.1 14 77 -38 56 20 38 56 6 27 56 23 0 56 4 6 -0.64 -121 0 1 56 27 13 4 44 45.0 15 78 -39 56 34 18 56 20 9 56 36 39 56 17 48 -0.64 -120 0 1 56 40 31 4 44 42.8 15 79 -39 56 47 35 56 33 29 56 49 56 56 31 8 -0.64 -119 0 1 56 53 27 4 44 40.5 16 79 -40 57 0 29 56 46 26 57 2 50 56 44 5 -0.64 -118 0 0 57 6 1 4 44 38.2 16 80 -40 57 13 1 56 59 1 57 15 22 56 56 41 -0.64 -117 0 0 57 18 12 4 44 35.8 17 81 -40 57 25 12 57 11 13 57 27 32 57 8 54 -0.64 -116 0 0 57 30 2 4 44 33.4 18 82 -41 57 37 1 57 23 5 57 39 20 57 20 45 -0.64 -115 0 0 57 41 31 4 44 30.9 18 83 -41 57 48 28 57 34 34 57 50 47 57 32 15 -0.64 -114 0 0 57 52 38 4 44 28.4 19 84 -42 57 59 34 57 45 43 58 1 53 57 43 24 -0.64 -113 0 0 58 3 24 4 44 25.8 19 85 -42 58 10 19 57 56 30 58 12 38 57 54 12 -0.64 -112 0 0 58 13 50 4 44 23.2 20 86 -42 58 20 44 58 6 57 58 23 2 58 4 39 -0.64 -111 0 0 58 23 55 4 44 20.5 20 86 -43 58 30 47 58 17 3 58 33 5 58 14 45 -0.64 -110 0 0 58 33 39 4 44 17.8 21 87 -43 58 40 31 58 26 48 58 42 49 58 24 31 -0.64 -109 0 0 58 43 4 4 44 15.0 21 88 -43 58 49 54 58 36 14 58 52 12 58 33 57 -0.64 -108 0 0 58 52 8 4 44 12.2 22 89 -44 58 58 58 58 45 19 59 1 15 58 43 3 -0.64 -107 0 0 59 0 53 4 44 9.4 22 90 -44 59 7 42 58 54 5 59 9 58 58 51 49 -0.64 -106 0 0 59 9 18 4 44 6.5 23 91 -44 59 16 6 59 2 31 59 18 23 59 0 15 -0.64 -105 0 0 59 17 24 4 44 3.5 23 92 -45 59 24 11 59 10 38 59 26 27 59 8 22 -0.64 -104 0 0 59 25 11 4 44 0.5 24 93 -45 59 31 57 59 18 26 59 34 13 59 16 10 -0.64 -103 0 0 59 32 39 4 43 57.5 24 94 -45 59 39 24 59 25 54 59 41 40 59 23 39 -0.64 -102 0 0 59 39 48 4 43 54.5 25 95 -45 59 46 33 59 33 4 59 48 48 59 30 50 -0.64 -101 0 0 59 46 39 4 43 51.4 25 95 -46 59 53 22 59 39 56 59 55 37 59 37 41 -0.64 -100 0 0 59 53 11 4 43 48.2 26 96 -46 59 59 54 59 46 28 60 2 8 59 44 14 -0.64 - 99 0 0 59 59 25 4 43 45.0 26 97 -46 60 6 7 59 52 43 60 8 21 59 50 29 -0.64 - 98 0 0 60 5 20 4 43 41.8 27 98 -47 60 12 2 59 58 39 60 14 16 59 56 26 -0.64 - 97 0 0 60 10 58 4 43 38.6 27 99 -47 60 17 39 60 4 18 60 19 53 60 2 4 -0.64 - 96 0 0 60 16 18 4 43 35.3 28 100 -47 60 22 58 60 9 38 60 25 12 60 7 25 -0.65 - 95 0 0 60 21 20 4 43 32.0 28 101 -47 60 28 0 60 14 41 60 30 13 60 12 28 -0.65 - 94 0 0 60 26 5 4 43 28.6 29 102 -47 60 32 44 60 19 26 60 34 57 60 17 13 -0.65 - 93 0 0 60 30 32 4 43 25.2 29 103 -48 60 37 10 60 23 54 60 39 23 60 21 41 -0.65 - 92 0 0 60 34 41 4 43 21.8 30 104 -48 60 41 20 60 28 4 60 43 33 60 25 51 -0.65 - 91 0 0 60 38 34 4 43 18.3 30 105 -48 60 45 12 60 31 57 60 47 24 60 29 44 -0.65 - 90 0 0 60 42 9 4 43 14.8 30 106 -48 60 48 47 60 35 32 60 50 59 60 33 20 -0.65 - 89 0 0 60 45 28 4 43 11.3 31 107 -48 60 52 5 60 38 51 60 54 17 60 36 39 -0.65 - 88 0 0 60 48 29 4 43 7.7 31 108 -49 60 55 6 60 41 53 60 57 18 60 39 41 -0.65 - 87 0 0 60 51 14 4 43 4.1 32 109 -49 60 57 50 60 44 38 61 0 2 60 42 26 -0.65 - 86 0 0 60 53 41 4 43 0.4 32 110 -49 61 0 17 60 47 6 61 2 30 60 44 54 -0.65 - 85 0 0 60 55 52 4 42 56.8 33 111 -49 61 2 28 60 49 17 61 4 40 60 47 5 -0.65 - 84 0 0 60 57 47 4 42 53.0 33 112 -49 61 4 22 60 51 12 61 6 34 60 49 0 -0.65 - 83 0 0 60 59 24 4 42 49.3 34 113 -49 61 6 0 60 52 49 61 8 12 60 50 38 -0.65 - 82 0 0 61 0 45 4 42 45.5 34 114 -50 61 7 21 60 54 11 61 9 33 60 51 59 -0.65 - 81 0 0 61 1 50 4 42 41.7 34 115 -50 61 8 25 60 55 15 61 10 37 60 53 4 -0.65 - 80 0 0 61 2 38 4 42 37.8 35 116 -50 61 9 13 60 56 4 61 11 25 60 53 52 -0.65 - 79 0 0 61 3 10 4 42 33.9 35 117 -50 61 9 45 60 56 35 61 11 57 60 54 24 -0.65 - 78 0 0 61 3 25 4 42 29.9 36 118 -50 61 10 0 60 56 51 61 12 12 60 54 39 -0.65 - 77 0 0 61 3 24 4 42 25.9 36 119 -50 61 9 59 60 56 50 61 12 11 60 54 38 -0.65 - 76 0 0 61 3 7 4 42 21.9 37 120 -50 61 9 42 60 56 32 61 11 54 60 54 20 -0.65 - 75 0 0 61 2 33 4 42 17.9 37 121 -50 61 9 8 60 55 58 61 11 20 60 53 46 -0.65 - 74 0 0 61 1 42 4 42 13.7 37 122 -50 61 8 18 60 55 7 61 10 30 60 52 56 -0.65 - 73 0 0 61 0 35 4 42 9.6 38 123 -51 61 7 11 60 54 0 61 9 23 60 51 48 -0.65 - 72 0 0 60 59 12 4 42 5.4 38 124 -51 61 5 48 60 52 37 61 8 0 60 50 25 -0.65 - 71 0 0 60 57 32 4 42 1.2 39 125 -51 61 4 8 60 50 57 61 6 21 60 48 45 -0.65 - 70 0 0 60 55 36 4 41 56.9 39 126 -51 61 2 12 60 49 0 61 4 25 60 46 48 -0.65 - 69 0 0 60 53 23 4 41 52.6 39 127 -51 61 0 0 60 46 47 61 2 12 60 44 35 -0.65 - 68 0 0 60 50 54 4 41 48.2 40 128 -51 60 57 31 60 44 17 60 59 44 60 42 5 -0.65 - 67 0 0 60 48 8 4 41 43.8 40 129 -51 60 54 45 60 41 31 60 56 58 60 39 19 -0.65 - 66 0 0 60 45 5 4 41 39.3 41 130 -51 60 51 43 60 38 28 60 53 56 60 36 15 -0.65 - 65 0 0 60 41 46 4 41 34.8 41 131 -51 60 48 24 60 35 8 60 50 37 60 32 55 -0.65 - 64 0 0 60 38 9 4 41 30.3 41 133 -51 60 44 48 60 31 31 60 47 1 60 29 18 -0.65 - 63 0 0 60 34 16 4 41 25.7 42 134 -51 60 40 55 60 27 37 60 43 9 60 25 24 -0.65 - 62 0 0 60 30 6 4 41 21.0 42 135 -51 60 36 46 60 23 27 60 38 59 60 21 14 -0.65 - 61 0 0 60 25 39 4 41 16.3 43 136 -51 60 32 19 60 18 59 60 34 33 60 16 46 -0.65 - 60 0 0 60 20 54 4 41 11.5 43 137 -51 60 27 35 60 14 14 60 29 49 60 12 0 -0.65 - 59 0 0 60 15 53 4 41 6.7 43 138 -51 60 22 34 60 9 12 60 24 48 60 6 58 -0.65 - 58 0 0 60 10 34 4 41 1.9 44 139 -51 60 17 16 60 3 52 60 19 30 60 1 38 -0.65 - 57 0 0 60 4 57 4 40 56.9 44 141 -51 60 11 40 59 58 15 60 13 55 59 56 0 -0.65 - 56 0 0 59 59 3 4 40 52.0 45 142 -51 60 5 47 59 52 20 60 8 1 59 50 5 -0.65 - 55 0 0 59 52 51 4 40 46.9 45 143 -51 59 59 35 59 46 7 60 1 51 59 43 53 -0.66 - 54 0 0 59 46 21 4 40 41.8 45 144 -51 59 53 7 59 39 37 59 55 22 59 37 22 -0.66 - 53 0 0 59 39 34 4 40 36.7 46 145 -51 59 46 20 59 32 48 59 48 35 59 30 33 -0.66 - 52 0 0 59 32 28 4 40 31.5 46 146 -50 59 39 15 59 25 42 59 41 31 59 23 26 -0.66 - 51 0 0 59 25 4 4 40 26.2 46 148 -50 59 31 52 59 18 17 59 34 8 59 16 1 -0.66 - 50 0 0 59 17 22 4 40 20.9 47 149 -50 59 24 10 59 10 34 59 26 27 59 8 18 -0.66 - 49 0 0 59 9 21 4 40 15.5 47 150 -50 59 16 10 59 2 32 59 18 27 59 0 15 -0.66 - 48 0 0 59 1 1 4 40 10.0 48 151 -50 59 7 52 58 54 11 59 10 9 58 51 55 -0.66 - 47 0 0 58 52 23 4 40 4.5 48 153 -50 58 59 14 58 45 32 59 1 32 58 43 15 -0.66 - 46 0 0 58 43 25 4 39 58.9 48 154 -50 58 50 18 58 36 33 58 52 36 58 34 16 -0.66 - 45 0 0 58 34 9 4 39 53.2 49 155 -50 58 41 2 58 27 16 58 43 20 58 24 58 -0.66 - 44 0 0 58 24 33 4 39 47.5 49 156 -49 58 31 27 58 17 39 58 33 46 58 15 21 -0.66 - 43 0 0 58 14 37 4 39 41.7 49 158 -49 58 21 33 58 7 42 58 23 52 58 5 24 -0.66 - 42 0 0 58 4 22 4 39 35.8 50 159 -49 58 11 19 57 57 26 58 13 38 57 55 7 -0.66 - 41 0 0 57 53 47 4 39 29.8 50 160 -49 58 0 45 57 46 50 58 3 4 57 44 31 -0.66 - 40 0 0 57 42 52 4 39 23.8 50 162 -49 57 49 51 57 35 54 57 52 11 57 33 34 -0.66 - 39 0 0 57 31 37 4 39 17.7 51 163 -49 57 38 37 57 24 37 57 40 57 57 22 17 -0.66 - 38 0 0 57 20 1 4 39 11.5 51 164 -48 57 27 2 57 13 0 57 29 23 57 10 40 -0.66 - 37 0 0 57 8 5 4 39 5.2 51 166 -48 57 15 7 57 1 3 57 17 28 56 58 42 -0.66 - 36 0 0 56 55 48 4 38 58.9 52 167 -48 57 2 51 56 48 45 57 5 13 56 46 24 -0.66 - 35 0 0 56 43 10 4 38 52.5 52 169 -48 56 50 15 56 36 6 56 52 37 56 33 44 -0.66 - 34 0 0 56 30 11 4 38 46.0 52 170 -47 56 37 17 56 23 5 56 39 39 56 20 44 -0.66 - 33 0 0 56 16 51 4 38 39.4 53 172 -47 56 23 58 56 9 44 56 26 21 56 7 22 -0.66 - 32 0 0 56 3 9 4 38 32.7 53 173 -47 56 10 17 55 56 1 56 12 41 55 53 38 -0.66 - 31 0 0 55 49 6 4 38 26.0 53 175 -46 55 56 15 55 41 57 55 58 39 55 39 33 -0.66 - 30 0 0 55 34 41 4 38 19.1 53 176 -46 55 41 52 55 27 30 55 44 16 55 25 7 -0.66 - 29 0 0 55 19 54 4 38 12.2 54 178 -46 55 27 6 55 12 42 55 29 30 55 10 18 -0.66 - 28 0 0 55 4 44 4 38 5.2 54 179 -46 55 11 58 54 57 31 55 14 23 54 55 7 -0.66 - 27 0 0 54 49 13 4 37 58.1 54 181 -45 54 56 28 54 41 59 54 58 53 54 39 34 -0.66 - 26 0 0 54 33 19 4 37 50.9 55 182 -45 54 40 35 54 26 4 54 43 1 54 23 38 -0.66 - 25 0 0 54 17 3 4 37 43.6 55 184 -44 54 24 20 54 9 46 54 26 46 54 7 20 -0.66 - 24 0 0 54 0 24 4 37 36.2 55 186 -44 54 7 42 53 53 6 54 10 9 53 50 40 -0.66 - 23 0 0 53 43 22 4 37 28.8 55 187 -44 53 50 42 53 36 2 53 53 9 53 33 36 -0.66 - 22 0 0 53 25 57 4 37 21.2 55 189 -43 53 33 18 53 18 36 53 35 46 53 16 9 -0.66 - 21 0 0 53 8 9 4 37 13.6 56 191 -43 53 15 31 53 0 47 53 17 59 52 58 20 -0.66 - 20 0 0 52 49 58 4 37 5.8 56 192 -42 52 57 22 52 42 35 52 59 50 52 40 7 -0.66 - 19 0 0 52 31 24 4 36 58.0 56 194 -42 52 38 49 52 23 59 52 41 17 52 21 31 -0.66 - 18 0 0 52 12 26 4 36 50.1 56 196 -42 52 19 52 52 5 1 52 22 22 52 2 32 -0.66 - 17 0 0 51 53 5 4 36 42.1 56 198 -41 52 0 33 51 45 39 52 3 2 51 43 10 -0.66 - 16 0 0 51 33 21 4 36 34.0 56 199 -41 51 40 50 51 25 53 51 43 20 51 23 24 -0.66 - 15 0 0 51 13 13 4 36 25.8 56 201 -40 51 20 43 51 5 44 51 23 13 51 3 14 -0.66 - 14 0 0 50 52 42 4 36 17.5 57 203 -40 51 0 13 50 45 12 51 2 44 50 42 42 -0.66 - 13 0 0 50 31 48 4 36 9.1 57 205 -39 50 39 20 50 24 16 50 41 51 50 21 46 -0.66 - 12 0 0 50 10 30 4 36 0.7 57 207 -39 50 18 3 50 2 57 50 20 34 50 0 26 -0.66 - 11 0 0 49 48 48 4 35 52.1 57 208 -38 49 56 23 49 41 15 49 58 54 49 38 43 -0.66 - 10 0 0 49 26 44 4 35 43.5 57 210 -38 49 34 19 49 19 9 49 36 51 49 16 37 -0.66 - 9 0 0 49 4 16 4 35 34.8 57 212 -37 49 11 52 48 56 40 49 14 25 48 54 8 -0.66 - 8 0 0 48 41 25 4 35 26.0 57 214 -36 48 49 2 48 33 48 48 51 35 48 31 16 -0.66 - 7 0 0 48 18 11 4 35 17.1 57 216 -36 48 25 49 48 10 33 48 28 22 48 8 0 -0.66 - 6 0 0 47 54 34 4 35 8.1 57 218 -35 48 2 13 47 46 55 48 4 47 47 44 22 -0.65 - 5 0 0 47 30 34 4 34 59.1 56 220 -35 47 38 14 47 22 55 47 40 48 47 20 21 -0.65 - 4 0 0 47 6 12 4 34 49.9 56 221 -34 47 13 53 46 58 32 47 16 27 46 55 58 -0.65 - 3 0 0 46 41 28 4 34 40.7 56 223 -33 46 49 10 46 33 46 46 51 44 46 31 13 -0.65 - 2 0 0 46 16 21 4 34 31.5 56 225 -33 46 24 4 46 8 39 46 26 39 46 6 5 -0.65 - 1 0 0 45 50 53 4 34 22.1 56 227 -32 45 58 36 45 43 10 46 1 11 45 40 36 -0.65 0 0 0 45 25 3 4 34 12.7 56 229 -31 45 32 47 45 17 20 45 35 23 45 14 45 -0.65 1 0 0 44 58 52 4 34 3.3 55 231 -31 45 6 37 44 51 8 45 9 13 44 48 33 -0.65 2 0 0 44 32 21 4 33 53.7 55 232 -30 44 40 6 44 24 36 44 42 42 44 22 1 -0.65 3 0 0 44 5 29 4 33 44.2 55 234 -29 44 13 15 43 57 43 44 15 50 43 55 8 -0.65 4 0 0 43 38 16 4 33 34.5 55 236 -29 43 46 3 43 30 31 43 48 39 43 27 55 -0.65 5 0 0 43 10 45 4 33 24.9 54 238 -28 43 18 32 43 2 59 43 21 8 43 0 23 -0.65 6 0 0 42 42 54 4 33 15.1 54 239 -27 42 50 42 42 35 7 42 53 18 42 32 32 -0.65 7 0 0 42 14 45 4 33 5.4 54 241 -26 42 22 33 42 6 58 42 25 9 42 4 22 -0.65 8 0 0 41 46 17 4 32 55.6 53 243 -26 41 54 5 41 38 30 41 56 42 41 35 54 -0.65 9 0 0 41 17 32 4 32 45.8 53 244 -25 41 25 21 41 9 44 41 27 57 41 7 8 -0.65 10 0 0 40 48 30 4 32 36.0 52 246 -24 40 56 19 40 40 42 40 58 56 40 38 6 -0.65 11 0 0 40 19 12 4 32 26.1 52 248 -23 40 27 1 40 11 24 40 29 37 40 8 48 -0.65 12 0 0 39 49 37 4 32 16.3 51 249 -23 39 57 27 39 41 49 40 0 3 39 39 13 -0.65 13 0 0 39 19 48 4 32 6.4 51 251 -22 39 27 37 39 12 0 39 30 14 39 9 24 -0.65 14 0 0 38 49 44 4 31 56.5 50 252 -21 38 57 34 38 41 56 39 0 10 38 39 20 -0.65 15 0 0 38 19 27 4 31 46.7 50 253 -20 38 27 16 38 11 39 38 29 53 38 9 3 -0.65 16 0 0 37 48 57 4 31 36.8 49 255 -19 37 56 46 37 41 8 37 59 22 37 38 32 -0.65 17 0 0 37 18 14 4 31 27.0 48 256 -18 37 26 3 37 10 26 37 28 40 37 7 50 -0.65 18 0 0 36 47 20 4 31 17.2 48 258 -18 36 55 8 36 39 32 36 57 45 36 36 56 -0.65 19 0 0 36 16 15 4 31 7.5 47 259 -17 36 24 3 36 8 27 36 26 40 36 5 51 -0.65 20 0 0 35 45 0 4 30 57.8 47 260 -16 35 52 48 35 37 13 35 55 25 35 34 37 -0.65 21 0 0 35 13 37 4 30 48.1 46 261 -15 35 21 24 35 5 50 35 24 1 35 3 14 -0.65 22 0 0 34 42 5 4 30 38.5 45 263 -14 34 49 52 34 34 18 34 52 28 34 31 42 -0.64 23 0 0 34 10 25 4 30 29.0 44 264 -13 34 18 12 34 2 39 34 20 48 34 0 4 -0.64 24 0 0 33 38 39 4 30 19.5 44 265 -12 33 46 26 33 30 54 33 49 2 33 28 18 -0.64 25 0 0 33 6 48 4 30 10.1 43 266 -11 33 14 34 32 59 3 33 17 10 32 56 28 -0.64 26 0 0 32 34 52 4 30 0.8 42 267 -10 32 42 37 32 27 7 32 45 13 32 24 32 -0.64 27 0 0 32 2 52 4 29 51.6 41 268 -9 32 10 37 31 55 8 32 13 12 31 52 33 -0.64 28 0 0 31 30 49 4 29 42.5 41 269 -8 31 38 33 31 23 6 31 41 8 31 20 32 -0.64 29 0 0 30 58 45 4 29 33.5 40 270 -7 31 6 28 30 51 2 31 9 3 30 48 28 -0.64 30 0 0 30 26 39 4 29 24.6 39 271 -6 30 34 22 30 18 58 30 36 56 30 16 24 -0.64 31 0 0 29 54 34 4 29 15.8 38 272 -5 30 2 16 29 46 53 30 4 50 29 44 19 -0.64 32 0 0 29 22 29 4 29 7.2 37 273 -4 29 30 10 29 14 49 29 32 44 29 12 16 -0.64 33 0 0 28 50 27 4 28 58.7 36 273 -3 28 58 7 28 42 48 29 0 41 28 40 15 -0.64 34 0 0 28 18 27 4 28 50.3 35 274 -2 28 26 6 28 10 49 28 28 40 28 8 16 -0.64 35 0 0 27 46 32 4 28 42.1 35 275 -2 27 54 10 27 38 54 27 56 43 27 36 22 -0.64 36 0 0 27 14 41 4 28 34.0 34 276 -1 27 22 18 27 7 4 27 24 51 27 4 32 -0.64 37 0 0 26 42 55 4 28 26.1 33 276 0 26 50 31 26 35 20 26 53 4 26 32 48 -0.64 38 0 0 26 11 17 4 28 18.4 32 277 2 26 18 52 26 3 42 26 21 24 26 1 11 -0.64 39 0 0 25 39 46 4 28 10.9 31 278 3 25 47 20 25 32 12 25 49 52 25 29 41 -0.64 40 0 0 25 8 23 4 28 3.5 30 278 4 25 15 56 25 0 51 25 18 28 24 58 20 -0.64 41 0 0 24 37 10 4 27 56.4 29 279 5 24 44 42 24 29 39 24 47 13 24 27 9 -0.64 42 0 0 24 6 8 4 27 49.4 28 280 6 24 13 39 23 58 38 24 16 9 23 56 7 -0.64 43 0 0 23 35 16 4 27 42.6 27 280 7 23 42 46 23 27 47 23 45 16 23 25 18 -0.65 44 0 0 23 4 37 4 27 36.1 26 281 8 23 12 6 22 57 10 23 14 36 22 54 40 -0.65 45 0 0 22 34 12 4 27 29.7 25 281 9 22 41 39 22 26 45 22 44 8 22 24 16 -0.65 46 0 0 22 4 0 4 27 23.6 24 282 10 22 11 26 21 56 34 22 13 55 21 54 6 -0.65 47 0 0 21 34 3 4 27 17.7 23 282 11 21 41 28 21 26 38 21 43 56 21 24 10 -0.65 48 0 0 21 4 21 4 27 12.0 22 283 12 21 11 45 20 56 58 21 14 13 20 54 30 -0.65 49 0 0 20 34 56 4 27 6.5 21 283 13 20 42 19 20 27 34 20 44 47 20 25 7 -0.65 50 0 0 20 5 48 4 27 1.3 20 284 14 20 13 10 19 58 28 20 15 37 19 56 1 -0.65 51 0 0 19 36 59 4 26 56.3 19 284 15 19 44 19 19 29 39 19 46 46 19 27 13 -0.65 52 0 0 19 8 28 4 26 51.6 18 285 16 19 15 47 19 1 10 19 18 13 18 58 43 -0.65 53 0 0 18 40 16 4 26 47.1 17 285 17 18 47 34 18 33 0 18 50 0 18 30 34 -0.66 54 0 0 18 12 26 4 26 42.9 16 285 18 18 19 42 18 5 10 18 22 8 18 2 45 -0.66 55 0 0 17 44 56 4 26 38.9 15 286 19 17 52 11 17 37 41 17 54 36 17 35 16 -0.66 56 0 0 17 17 48 4 26 35.1 14 286 20 17 25 2 17 10 34 17 27 26 17 8 10 -0.66 57 0 0 16 51 2 4 26 31.7 13 286 21 16 58 15 16 43 50 17 0 39 16 41 26 -0.66 58 0 0 16 24 40 4 26 28.4 12 287 22 16 31 51 16 17 29 16 34 15 16 15 5 -0.67 59 0 0 15 58 41 4 26 25.5 11 287 23 16 5 51 15 51 32 16 8 15 15 49 8 -0.67 60 0 0 15 33 7 4 26 22.8 10 287 24 15 40 16 15 25 59 15 42 39 15 23 36 -0.68 61 0 0 15 7 58 4 26 20.3 9 287 25 15 15 6 15 0 51 15 17 28 14 58 28 -0.68 62 0 0 14 43 14 4 26 18.2 8 288 26 14 50 21 14 36 8 14 52 43 14 33 46 -0.69 63 0 0 14 18 57 4 26 16.2 7 288 27 14 26 2 14 11 52 14 28 24 14 9 31 -0.70 64 0 0 13 55 6 4 26 14.6 6 288 28 14 2 10 13 48 3 14 4 32 13 45 41 -0.71 65 0 0 13 31 43 4 26 13.2 5 288 29 13 38 46 13 24 40 13 41 7 13 22 20 -0.73 66 0 0 13 8 47 4 26 12.1 4 289 30 13 15 49 13 1 46 13 18 10 12 59 25 -0.76 67 0 0 12 46 20 4 26 11.3 3 289 31 12 53 20 12 39 20 12 55 41 12 36 59 -0.80 68 0 0 12 24 21 4 26 10.7 2 289 32 12 31 20 12 17 22 12 33 40 12 15 2 -0.91 69 0 0 12 2 51 4 26 10.4 1 289 33 12 9 50 11 55 54 12 12 9 11 53 34 -1.39 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 1422-01113-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 11 23.7524 DE: +19 11 57.281 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 11 23.7525 DE: +19 11 57.280 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (990) Yerkes asteroid class: approx. diameter [km]: 20 approx. diameter ["]: 0.013 distance from Earth [AU]: 2.14230 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#58 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): 0.010", 0.002", 119.372° remarks: * orbital elements for (990)Yerkes : Mean anomaly = 112.4890921644 deg Arg. of pericenter = 9.2985729619 deg Long. of node = 353.9357344687 deg Inclination = 8.7866922337 deg Eccentricity = 0.2178765440 Semimajor axis = 2.6672805508 AU Perihelion dist = 2.0861426826 AU Mag: H = 11.77, G = 0.15 Epoch of elements : MJD 60321.19146196 TDT (2024 Jan 12.1915) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#582023Apr27,2.18,2024,1,12,4.595090,0.191323,0.510318,-4.941540,1.854756,-0.003602,0.000709,0.000001,-0.000001 -26.9269,19.0794,113.08,-21.73,False TYC 1422-01113-1,10.18993121,19.1992446,12.12,11.86,11.72,0.0,0,,10.21211506,19.0794359,4.67,4.37,0,0,0 990,Yerkes,16.52,20.431,2.1423,0,0,-1.431,7.61,,1.4,0 0,112.4458,2024,1,12,9.2986,353.9357,8.7867,0.21788,2.66728,2.08614,11.78,5.0,0.15 1.167,0.0097,0.0016,119,0.0022,Known errors,0.83,0,-1,-1 20240112_1113-1,60137.01 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org