IOTA/IOTA-ES occultation update for (2) Pallas / TYC 4813-00272-1 event on 2023 Mar 22, 09:19 UT Visible from Japan Summary ------- On 2023 Mar 22 UT, the 532 km diameter asteroid (2) Pallas will occult a 12.0 mag star in the constellation Monoceros for observers along a path across Japan. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.03 mag to 8.12 mag (the magnitude of the asteroid) for at most 23.380 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 22, 09:15 - 2023 Mar 22, 09:23 * geocentric midpoint of event [JD]: 2460025.88856792 * magnitude of target star: 11.97 * magnitude drop [mag]: 0.03 * estimated maximum duration [s]: 23.380 * Moon: 1 % sunlit, 93° distance * Sun: 102° distance * rough path description: Japan Additional comments ------------------- very low mag drop The occultation path -------------------- * approximate projected width [km]: 639 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.040, +/- 0.016) * 1 sigma uncertainty ellipse (major, minor, PA): (0.041", 0.015", 84°) * approx speed of asteroid's shadow [km/s]: 22.7560 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4813-00272-1 by 2 Pallas on 2023 Mar 22 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 53 0 0 -18 25 2 9 15 39.0 0 98 69 -21 16 23 -15 27 45 -21 40 20 .. .. .. .... 54 0 0 -18 31 52 9 15 39.1 1 97 68 -21 22 55 -15 34 56 -21 46 50 -15 9 13 -0.40 55 0 0 -18 37 45 9 15 39.3 2 97 67 -21 28 33 -15 41 5 -21 52 25 -15 15 25 -0.51 56 0 0 -18 42 41 9 15 39.5 3 97 67 -21 33 15 -15 46 14 -21 57 6 -15 20 36 -0.56 57 0 0 -18 46 39 9 15 39.9 4 96 66 -21 37 3 -15 50 23 -22 0 53 -15 24 46 -0.58 58 0 0 -18 49 39 9 15 40.4 5 96 66 -21 39 57 -15 53 31 -22 3 45 -15 27 56 -0.60 59 0 0 -18 51 43 9 15 40.9 6 96 65 -21 41 56 -15 55 39 -22 5 44 -15 30 5 -0.61 60 0 0 -18 52 49 9 15 41.6 7 95 64 -21 43 1 -15 56 47 -22 6 48 -15 31 13 -0.62 61 0 0 -18 52 58 9 15 42.3 8 95 64 -21 43 11 -15 56 55 -22 6 59 -15 31 20 -0.63 62 0 0 -18 52 10 9 15 43.1 9 95 63 -21 42 27 -15 56 2 -22 6 15 -15 30 27 -0.63 63 0 0 -18 50 25 9 15 44.0 10 94 62 -21 40 49 -15 54 9 -22 4 38 -15 28 32 -0.64 64 0 0 -18 47 42 9 15 45.0 11 94 62 -21 38 15 -15 51 15 -22 2 6 -15 25 37 -0.64 65 0 0 -18 44 1 9 15 46.1 12 94 61 -21 34 47 -15 47 21 -21 58 39 -15 21 40 -0.64 66 0 0 -18 39 23 9 15 47.3 13 94 60 -21 30 24 -15 42 25 -21 54 18 -15 16 42 -0.64 67 0 0 -18 33 46 9 15 48.6 14 93 59 -21 25 5 -15 36 28 -21 49 2 -15 10 42 -0.65 68 0 0 -18 27 11 9 15 50.0 15 93 59 -21 18 51 -15 29 29 -21 42 50 -15 3 40 -0.65 69 0 0 -18 19 36 9 15 51.5 16 93 58 -21 11 41 -15 21 28 -21 35 43 -14 55 34 -0.65 70 0 0 -18 11 3 9 15 53.0 17 92 57 -21 3 34 -15 12 25 -21 27 40 -14 46 26 -0.65 71 0 0 -18 1 29 9 15 54.7 17 92 57 -20 54 30 -15 2 17 -21 18 40 -14 36 14 -0.65 72 0 0 -17 50 55 9 15 56.4 18 92 56 -20 44 29 -14 51 7 -21 8 44 -14 24 57 -0.66 73 0 0 -17 39 20 9 15 58.3 19 92 55 -20 33 30 -14 38 51 -20 57 49 -14 12 36 -0.66 74 0 0 -17 26 43 9 16 0.3 20 92 54 -20 21 32 -14 25 30 -20 45 57 -13 59 8 -0.66 75 0 0 -17 13 4 9 16 2.3 21 91 54 -20 8 36 -14 11 4 -20 33 6 -13 44 34 -0.66 76 0 0 -16 58 21 9 16 4.5 22 91 53 -19 54 39 -13 55 30 -20 19 16 -13 28 53 -0.66 77 0 0 -16 42 35 9 16 6.8 23 91 52 -19 39 42 -13 38 49 -20 4 25 -13 12 3 -0.66 78 0 0 -16 25 44 9 16 9.1 24 91 51 -19 23 43 -13 20 59 -19 48 33 -12 54 4 -0.66 79 0 0 -16 7 47 9 16 11.6 25 91 50 -19 6 42 -13 1 59 -19 31 40 -12 34 55 -0.66 80 0 0 -15 48 43 9 16 14.2 26 91 50 -18 48 38 -12 41 48 -19 13 43 -12 14 34 -0.66 81 0 0 -15 28 31 9 16 16.9 27 90 49 -18 29 29 -12 20 26 -18 54 43 -11 53 0 -0.66 82 0 0 -15 7 11 9 16 19.8 28 90 48 -18 9 16 -11 57 50 -18 34 39 -11 30 13 -0.66 83 0 0 -14 44 40 9 16 22.7 29 90 47 -17 47 56 -11 33 59 -18 13 28 -11 6 10 -0.66 84 0 0 -14 20 58 9 16 25.7 30 90 46 -17 25 29 -11 8 53 -17 51 11 -10 40 51 -0.67 85 0 0 -13 56 3 9 16 28.9 31 90 46 -17 1 53 -10 42 29 -17 27 46 -10 14 14 -0.67 86 0 0 -13 29 55 9 16 32.2 32 90 45 -16 37 7 -10 14 46 -17 3 12 - 9 46 16 -0.67 87 0 0 -13 2 31 9 16 35.6 33 90 44 -16 11 11 - 9 45 43 -16 37 27 - 9 16 58 -0.67 88 0 0 -12 33 50 9 16 39.2 34 90 43 -15 44 2 - 9 15 18 -16 10 30 - 8 46 17 -0.67 89 0 0 -12 3 51 9 16 42.9 35 91 42 -15 15 39 - 8 43 29 -15 42 20 - 8 14 11 -0.67 90 0 0 -11 32 31 9 16 46.7 36 91 41 -14 46 1 - 8 10 14 -15 12 55 - 7 40 38 -0.67 91 0 0 -10 59 50 9 16 50.7 37 91 40 -14 15 6 - 7 35 31 -14 42 14 - 7 5 37 -0.67 92 0 0 -10 25 45 9 16 54.7 38 91 40 -13 42 53 - 6 59 19 -14 10 16 - 6 29 5 -0.67 93 0 0 - 9 50 16 9 16 59.0 39 92 39 -13 9 19 - 6 21 36 -13 36 58 - 5 51 0 -0.67 94 0 0 - 9 13 18 9 17 3.4 40 92 38 -12 34 24 - 5 42 18 -13 2 19 - 5 11 20 -0.67 95 0 0 - 8 34 52 9 17 7.9 41 92 37 -11 58 5 - 5 1 24 -12 26 17 - 4 30 4 -0.67 96 0 0 - 7 54 55 9 17 12.6 42 93 36 -11 20 22 - 4 18 52 -11 48 51 - 3 47 7 -0.67 97 0 0 - 7 13 24 9 17 17.4 43 93 35 -10 41 11 - 3 34 39 -11 9 58 - 3 2 29 -0.67 98 0 0 - 6 30 18 9 17 22.4 44 94 34 -10 0 31 - 2 48 43 -10 29 37 - 2 16 6 -0.67 99 0 0 - 5 45 35 9 17 27.6 45 95 33 - 9 18 20 - 2 1 0 - 9 47 47 - 1 27 55 -0.67 100 0 0 - 4 59 11 9 17 32.9 46 95 32 - 8 34 36 - 1 11 30 - 9 4 24 - 0 37 55 -0.67 101 0 0 - 4 11 6 9 17 38.3 47 96 31 - 7 49 17 - 0 20 8 - 8 19 27 0 13 58 -0.67 102 0 0 - 3 21 16 9 17 44.0 48 97 30 - 7 2 21 0 33 8 - 7 32 54 1 7 47 -0.67 103 0 0 - 2 29 40 9 17 49.8 48 98 29 - 6 13 46 1 28 21 - 6 44 42 2 3 34 -0.67 104 0 0 - 1 36 14 9 17 55.8 49 99 28 - 5 23 31 2 25 34 - 5 54 51 3 1 23 -0.67 105 0 0 - 0 40 58 9 18 2.0 50 101 27 - 4 31 32 3 24 49 - 5 3 19 4 1 16 -0.67 106 0 0 0 16 13 9 18 8.3 51 102 26 - 3 37 48 4 26 10 - 4 10 1 5 3 17 -0.67 107 0 0 1 15 20 9 18 14.8 52 103 25 - 2 42 17 5 29 39 - 3 14 58 6 7 29 -0.67 108 0 0 2 16 26 9 18 21.5 53 105 24 - 1 44 57 6 35 21 - 2 18 7 7 13 55 -0.67 109 0 0 3 19 32 9 18 28.4 53 107 23 - 0 45 46 7 43 17 - 1 19 26 8 22 39 -0.67 110 0 0 4 24 42 9 18 35.4 54 109 22 0 15 19 8 53 30 - 0 18 53 9 33 42 -0.67 111 0 0 5 31 56 9 18 42.6 54 111 21 1 18 17 10 6 5 0 43 33 10 47 9 -0.67 112 0 0 6 41 18 9 18 50.0 55 113 20 2 23 12 11 21 3 1 47 54 12 3 3 -0.67 113 0 0 7 52 48 9 18 57.5 55 115 19 3 30 4 12 38 27 2 54 11 13 21 26 -0.67 114 0 0 9 6 30 9 19 5.3 56 118 18 4 38 56 13 58 20 4 2 26 14 42 22 -0.67 115 0 0 10 22 23 9 19 13.1 56 120 17 5 49 47 15 20 45 5 12 39 16 5 54 -0.67 116 0 0 11 40 30 9 19 21.2 56 123 16 7 2 38 16 45 44 6 24 51 17 32 3 -0.67 117 0 0 13 0 50 9 19 29.3 56 125 15 8 17 31 18 13 19 7 39 3 19 0 53 -0.67 118 0 0 14 23 25 9 19 37.6 56 128 14 9 34 25 19 43 32 8 55 15 20 32 25 -0.67 119 0 0 15 48 15 9 19 46.1 56 131 12 10 53 20 21 16 25 10 13 26 22 6 42 -0.67 120 0 0 17 15 19 9 19 54.6 56 134 11 12 14 14 22 51 58 11 33 36 23 43 45 -0.66 121 0 0 18 44 37 9 20 3.2 56 137 10 13 37 8 24 30 11 12 55 43 25 23 36 -0.66 122 0 0 20 16 5 9 20 12.0 55 140 9 15 1 59 26 11 6 14 19 45 27 6 14 -0.66 123 0 0 21 49 44 9 20 20.7 54 143 8 16 28 44 27 54 42 15 45 41 28 51 40 -0.66 124 0 0 23 25 28 9 20 29.6 54 145 7 17 57 21 29 40 57 17 13 27 30 39 53 -0.66 125 0 0 25 3 14 9 20 38.4 53 148 6 19 27 45 31 29 49 18 42 59 32 30 52 -0.66 126 0 0 26 42 57 9 20 47.3 52 151 5 20 59 52 33 21 16 20 14 13 34 24 36 -0.66 127 0 0 28 24 32 9 20 56.1 51 153 4 22 33 37 35 15 13 21 47 3 36 21 0 -0.66 128 0 0 30 7 51 9 21 4.8 50 155 3 24 8 53 37 11 36 23 21 22 38 20 3 -0.66 129 0 0 31 52 46 9 21 13.5 49 158 2 25 45 32 39 10 18 24 57 5 40 21 37 -0.66 130 0 0 33 39 8 9 21 22.1 47 160 1 27 23 26 41 11 12 26 34 2 42 25 38 -0.66 131 0 0 35 26 45 9 21 30.5 46 162 1 29 2 26 43 14 8 28 12 4 44 31 58 -0.66 132 0 0 37 15 26 9 21 38.8 44 164 0 30 42 22 45 18 56 29 51 2 46 40 28 -0.66 133 0 0 39 4 56 9 21 46.9 43 166 -1 32 23 1 47 25 23 31 30 44 48 50 56 -0.66 134 0 0 40 55 1 9 21 54.7 41 168 -2 34 4 12 49 33 14 33 10 57 51 3 12 -0.67 135 0 0 42 45 25 9 22 2.2 39 169 -2 35 45 43 51 42 12 34 51 31 53 16 59 -0.67 136 0 0 44 35 48 9 22 9.5 38 171 -3 37 27 18 53 51 56 36 32 10 55 32 1 -0.67 137 0 0 46 25 54 9 22 16.4 36 172 -4 39 8 42 56 2 3 38 12 41 57 47 58 -0.67 138 0 0 48 15 20 9 22 23.0 34 174 -4 40 49 42 58 12 7 39 52 49 60 4 25 -0.67 139 0 0 50 3 46 9 22 29.3 33 175 -5 42 30 0 60 21 37 41 32 18 62 20 54 -0.67 140 0 0 51 50 51 9 22 35.1 31 176 -5 44 9 21 62 29 58 43 10 53 64 36 52 -0.67 141 0 0 53 36 13 9 22 40.6 29 177 -5 45 47 29 64 36 28 44 48 19 66 51 36 -0.67 142 0 0 55 19 28 9 22 45.7 27 179 -6 47 24 9 66 40 22 46 24 20 69 4 19 -0.67 143 0 0 57 0 16 9 22 50.3 26 180 -6 48 59 5 68 40 49 47 58 43 71 13 57 -0.67 144 0 0 58 38 16 9 22 54.6 24 181 -6 50 32 3 70 36 51 49 31 12 73 19 19 -0.67 145 0 0 60 13 9 9 22 58.5 23 182 -6 52 2 49 72 27 31 51 1 36 75 18 58 -0.68 146 0 0 61 44 37 9 23 1.9 21 183 -7 53 31 10 74 11 47 52 29 41 77 11 17 -0.68 147 0 0 63 12 26 9 23 5.1 20 184 -7 54 56 57 75 48 46 53 55 16 78 54 33 -0.68 148 0 0 64 36 24 9 23 7.8 18 185 -7 56 19 59 77 17 43 55 18 14 80 27 17 -0.68 149 0 0 65 56 22 9 23 10.3 17 186 -7 57 40 9 78 38 10 56 38 26 81 48 27 -0.68 150 0 0 67 12 12 9 23 12.4 15 187 -7 58 57 20 79 49 57 57 55 45 .. .. .. -0.68 151 0 0 68 23 54 9 23 14.3 14 188 -7 60 11 28 80 53 16 59 10 8 .. .. .. -0.68 152 0 0 69 31 27 9 23 16.0 13 189 -7 61 22 30 81 48 35 60 21 31 .. .. .. -0.68 153 0 0 70 34 55 9 23 17.4 12 190 -7 62 30 26 82 36 38 61 29 53 .. .. .. -0.68 154 0 0 71 34 22 9 23 18.6 11 191 -7 63 35 16 .. .. .. 62 35 15 .. .. .. -0.68 155 0 0 72 29 58 9 23 19.6 10 192 -7 64 37 2 .. .. .. 63 37 37 .. .. .. -0.68 156 0 0 73 21 52 9 23 20.5 9 193 -6 65 35 47 .. .. .. 64 37 2 .. .. .. -0.68 157 0 0 74 10 14 9 23 21.2 8 194 -6 66 31 34 .. .. .. 65 33 34 .. .. .. -0.68 158 0 0 74 55 16 9 23 21.8 7 195 -6 67 24 30 .. .. .. 66 27 18 .. .. .. -0.68 159 0 0 75 37 10 9 23 22.4 7 196 -6 68 14 41 .. .. .. 67 18 19 .. .. .. -0.68 160 0 0 76 16 8 9 23 22.8 6 197 -6 69 2 11 .. .. .. 68 6 42 .. .. .. -0.68 161 0 0 76 52 22 9 23 23.2 5 198 -6 69 47 9 .. .. .. 68 52 34 .. .. .. -0.68 162 0 0 77 26 4 9 23 23.5 5 199 -6 70 29 40 .. .. .. 69 36 1 .. .. .. -0.68 163 0 0 77 57 26 9 23 23.7 4 200 -6 71 9 53 .. .. .. 70 17 10 .. .. .. -0.68 164 0 0 78 26 37 9 23 23.9 4 201 -6 71 47 53 .. .. .. 70 56 8 .. .. .. -0.68 165 0 0 78 53 47 9 23 24.1 3 202 -6 72 23 49 .. .. .. 71 33 0 .. .. .. -0.68 166 0 0 79 19 7 9 23 24.2 3 203 -6 72 57 47 .. .. .. 72 7 55 .. .. .. -0.68 167 0 0 79 42 46 9 23 24.3 2 204 -5 73 29 54 .. .. .. 72 40 58 .. .. .. -0.68 168 0 0 80 4 49 9 23 24.4 2 205 -5 74 0 15 .. .. .. 73 12 16 .. .. .. -0.68 169 0 0 80 25 27 9 23 24.5 1 206 -5 74 28 58 .. .. .. 73 41 54 .. .. .. -0.68 170 0 0 80 44 44 9 23 24.5 1 207 -5 74 56 8 .. .. .. 74 9 58 .. .. .. -0.67 171 0 0 81 2 49 9 23 24.5 1 208 -5 75 21 51 .. .. .. 74 36 33 .. .. .. -0.66 172 0 0 81 19 45 9 23 24.6 0 209 -5 75 46 12 .. .. .. 75 1 45 .. .. .. -0.64 173 0 0 81 35 39 9 23 24.6 0 210 -5 76 9 15 .. .. .. 75 25 39 .. .. .. -0.27 174 0 0 .. .. .... .. .. .. .. .. .. 76 31 6 .. .. .. 75 48 20 .. .. .. .... 175 0 0 .. .. .... .. .. .. .. .. .. 76 51 50 .. .. .. 76 9 51 .. .. .. .... 176 0 0 .. .. .... .. .. .. .. .. .. 77 11 29 .. .. .. 76 30 16 .. .. .. .... 177 0 0 .. .. .... .. .. .. .. .. .. 77 30 8 .. .. .. 76 49 40 .. .. .. .... 178 0 0 .. .. .... .. .. .. .. .. .. 77 47 51 .. .. .. 77 8 7 .. .. .. .... 179 0 0 .. .. .... .. .. .. .. .. .. 78 4 41 .. .. .. 77 25 39 .. .. .. .... 180 0 0 .. .. .... .. .. .. .. .. .. 78 20 41 .. .. .. 77 42 19 .. .. .. .... -179 0 0 .. .. .... .. .. .. .. .. .. 78 35 54 .. .. .. 77 58 11 .. .. .. .... -178 0 0 .. .. .... .. .. .. .. .. .. 78 50 22 .. .. .. 78 13 18 .. .. .. .... -177 0 0 .. .. .... .. .. .. .. .. .. 79 4 9 .. .. .. 78 27 41 .. .. .. .... -176 0 0 .. .. .... .. .. .. .. .. .. 79 17 16 .. .. .. 78 41 24 .. .. .. .... -175 0 0 .. .. .... .. .. .. .. .. .. 79 29 46 .. .. .. 78 54 28 .. .. .. .... -174 0 0 .. .. .... .. .. .. .. .. .. 79 41 41 .. .. .. 79 6 56 .. .. .. .... -173 0 0 .. .. .... .. .. .. .. .. .. 79 53 3 .. .. .. 79 18 49 .. .. .. .... -172 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 79 30 10 .. .. .. .... Uncertainty in time = +/- 2 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: TYC 4813-00272-1 * constellation : Monoceros * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 53 02.4445 DE: -07 16 35.679 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 53 02.4444 DE: -07 16 35.679 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2) Pallas asteroid class: ShapeModel approx. diameter [km]: 532 approx. diameter ["]: 0.434 distance from Earth [AU]: 1.68930 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 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): 0.041", 0.015", 83.548° remarks: * orbital elements for (2)Pallas : Mean anomaly = 3.2771539379 deg Arg. of pericenter = 310.8662161030 deg Long. of node = 172.9183729329 deg Inclination = 34.9269067839 deg Eccentricity = 0.2301100314 Semimajor axis = 2.7697242595 AU Perihelion dist = 2.1323829232 AU Mag: H = 4.12, G = 0.11 Epoch of elements : MJD 60025.38861111 TDT (2023 Mar 22.3886) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Feb07,23.38,2023,3,22,9.325630,-0.436623,0.340571,7.900518,10.126871,0.005366,0.000089,0.000000,-0.000001 144.0323,-7.3070,41.86,0.59,False TYC 4813-00272-1,6.88401238,-7.2765776,0.00,11.97,0.00,0.0,0,,6.90268922,-7.3069972,0.03,0.00,0,0,0 2,Pallas,8.12,532.0,1.6893,0,0,2.765,52.71,,28.2,0 0,3.1941,2023,3,22,310.8662,172.9184,34.9269,0.23011,2.76972,2.13238,4.12,5.0,0.15 1.071,0.0407,0.0150,84,0.0309,Known errors,-1.00,-1,-1,-1 20230322_0272-1,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:51 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org