IOTA/IOTA-ES occultation update for (9023) Mnesthus / TYC 5827-00327-1 event on 2024 Dec 02, 09:10 UT Visible from Summary ------- On 2024 Dec 02 UT, the 51.1341495412883 km diameter asteroid (9023) Mnesthus will occult a 8.3 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 9.60 mag to 17.85 mag (the magnitude of the asteroid) for at most 4.790 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: 88 * date and approx. time of event: 2024 Dec 02, 09:05 - 2024 Dec 02, 09:15 * geocentric midpoint of event [JD]: 2460646.88208058 * magnitude of target star: 8.25 * magnitude drop [mag]: 9.60 * estimated maximum duration [s]: 4.790 * Moon: 2 % sunlit, 80° distance * Sun: 94° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 108 * 1 sigma uncertainty interval [path widths]: +/- 0.56 * 1 sigma uncertainty interval [seconds]: +/- 8.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.006", 90°) * approx speed of asteroid's shadow [km/s]: 10.8145 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5827-00327-1 by 9023 Mnesthus on 2024 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 65 0 0 47 5 26 9 5 30.3 0 109 18 46 34 55 47 36 30 46 1 34 48 11 42 .... 66 0 0 46 51 52 9 5 30.5 1 110 18 46 21 26 47 22 50 45 48 12 47 57 55 -1.07 67 0 0 46 38 42 9 5 30.8 2 111 18 46 8 22 47 9 35 45 35 13 47 44 32 -1.36 68 0 0 46 25 58 9 5 31.4 3 111 17 45 55 43 46 56 45 45 22 39 47 31 36 -1.49 69 0 0 46 13 39 9 5 32.2 3 112 17 45 43 29 46 44 20 45 10 31 47 19 5 -1.57 70 0 0 46 1 46 9 5 33.2 4 113 17 45 31 40 46 32 22 44 58 47 47 7 1 -1.62 71 0 0 45 50 19 9 5 34.4 5 114 17 45 20 18 46 20 50 44 47 30 46 55 23 -1.65 72 0 0 45 39 18 9 5 35.7 5 114 17 45 9 22 46 9 45 44 36 39 46 44 13 -1.67 73 0 0 45 28 45 9 5 37.3 6 115 17 44 58 52 45 59 7 44 26 14 46 33 29 -1.69 74 0 0 45 18 38 9 5 39.1 7 116 16 44 48 50 45 48 56 44 16 15 46 23 14 -1.71 75 0 0 45 8 59 9 5 41.1 8 116 16 44 39 15 45 39 13 44 6 44 46 13 26 -1.72 76 0 0 44 59 48 9 5 43.2 8 117 16 44 30 7 45 29 58 43 57 40 46 4 6 -1.73 77 0 0 44 51 4 9 5 45.6 9 118 16 44 21 27 45 21 11 43 49 4 45 55 15 -1.74 78 0 0 44 42 49 9 5 48.1 10 119 15 44 13 15 45 12 52 43 40 55 45 46 53 -1.75 79 0 0 44 35 3 9 5 50.9 10 119 15 44 5 31 45 5 2 43 33 15 45 38 59 -1.76 80 0 0 44 27 45 9 5 53.8 11 120 15 43 58 17 44 57 42 43 26 3 45 31 35 -1.76 81 0 0 44 20 56 9 5 56.9 12 121 14 43 51 30 44 50 50 43 19 19 45 24 40 -1.77 82 0 0 44 14 37 9 6 0.2 12 122 14 43 45 13 44 44 29 43 13 5 45 18 16 -1.77 83 0 0 44 8 47 9 6 3.7 13 122 14 43 39 25 44 38 37 43 7 19 45 12 21 -1.78 84 0 0 44 3 26 9 6 7.4 14 123 13 43 34 7 44 33 14 43 2 2 45 6 57 -1.78 85 0 0 43 58 36 9 6 11.3 14 124 13 43 29 18 44 28 22 42 57 15 45 2 3 -1.79 86 0 0 43 54 16 9 6 15.3 15 125 12 43 24 59 44 24 0 42 52 58 44 57 39 -1.79 87 0 0 43 50 25 9 6 19.5 16 126 12 43 21 10 44 20 9 42 49 10 44 53 46 -1.79 88 0 0 43 47 5 9 6 23.9 16 126 11 43 17 51 44 16 47 42 45 52 44 50 23 -1.80 89 0 0 43 44 15 9 6 28.4 17 127 11 43 15 2 44 13 56 42 43 5 44 47 31 -1.80 90 0 0 43 41 56 9 6 33.2 18 128 10 43 12 44 44 11 37 42 40 47 44 45 10 -1.80 91 0 0 43 40 8 9 6 38.0 18 129 10 43 10 56 44 9 48 42 38 59 44 43 21 -1.81 92 0 0 43 38 50 9 6 43.1 19 130 9 43 9 38 44 8 30 42 37 42 44 42 3 -1.81 93 0 0 43 38 3 9 6 48.3 19 131 9 43 8 51 44 7 43 42 36 54 44 41 16 -1.81 94 0 0 43 37 47 9 6 53.6 20 132 8 43 8 35 44 7 27 42 36 38 44 41 1 -1.81 95 0 0 43 38 2 9 6 59.1 20 132 8 43 8 49 44 7 43 42 36 52 44 41 17 -1.81 96 0 0 43 38 48 9 7 4.8 21 133 7 43 9 35 44 8 30 42 37 36 44 42 5 -1.82 97 0 0 43 40 5 9 7 10.6 21 134 7 43 10 51 44 9 48 42 38 52 44 43 24 -1.82 98 0 0 43 41 54 9 7 16.5 22 135 6 43 12 38 44 11 38 42 40 38 44 45 15 -1.82 99 0 0 43 44 13 9 7 22.6 22 136 5 43 14 56 44 13 58 42 42 54 44 47 37 -1.82 100 0 0 43 47 4 9 7 28.7 23 137 5 43 17 45 44 16 51 42 45 41 44 50 32 -1.82 101 0 0 43 50 25 9 7 35.0 23 138 4 43 21 5 44 20 14 42 48 59 44 53 57 -1.83 102 0 0 43 54 18 9 7 41.5 24 139 3 43 24 55 44 24 9 42 52 48 44 57 55 -1.83 103 0 0 43 58 42 9 7 48.0 24 140 3 43 29 17 44 28 35 42 57 7 45 2 24 -1.83 104 0 0 44 3 36 9 7 54.7 25 141 2 43 34 9 44 33 32 43 1 56 45 7 24 -1.83 105 0 0 44 9 2 9 8 1.4 25 142 1 43 39 32 44 39 1 43 7 16 45 12 56 -1.83 106 0 0 44 14 58 9 8 8.3 25 143 1 43 45 25 44 45 0 43 13 7 45 18 59 -1.83 107 0 0 44 21 26 9 8 15.2 26 144 0 43 51 49 44 51 31 43 19 27 45 25 33 -1.83 108 0 0 44 28 23 9 8 22.3 26 145 -1 43 58 44 44 58 32 43 26 18 45 32 39 -1.83 109 0 0 44 35 51 9 8 29.4 26 146 -1 44 6 8 45 6 4 43 33 39 45 40 15 -1.83 110 0 0 44 43 50 9 8 36.6 27 147 -2 44 14 3 45 14 6 43 41 29 45 48 22 -1.84 111 0 0 44 52 19 9 8 43.8 27 148 -3 44 22 28 45 22 39 43 49 50 45 57 0 -1.84 112 0 0 45 1 17 9 8 51.2 27 149 -3 44 31 22 45 31 42 43 58 40 46 6 8 -1.84 113 0 0 45 10 45 9 8 58.5 27 150 -4 44 40 46 45 41 15 44 7 59 46 15 47 -1.84 114 0 0 45 20 43 9 9 6.0 28 152 -5 44 50 39 45 51 18 44 17 47 46 25 55 -1.84 115 0 0 45 31 10 9 9 13.5 28 153 -6 45 1 1 46 1 50 44 28 4 46 36 34 -1.84 116 0 0 45 42 7 9 9 21.0 28 154 -6 45 11 52 46 12 52 44 38 50 46 47 42 -1.84 117 0 0 45 53 32 9 9 28.6 28 155 -7 45 23 12 46 24 23 44 50 4 46 59 19 -1.84 118 0 0 46 5 26 9 9 36.2 28 156 -8 45 35 0 46 36 22 45 1 47 47 11 25 -1.84 119 0 0 46 17 47 9 9 43.8 28 157 -9 45 47 17 46 48 50 45 13 57 47 24 0 -1.84 120 0 0 46 30 37 9 9 51.4 28 158 -9 46 0 0 47 1 46 45 26 34 47 37 3 -1.84 121 0 0 46 43 54 9 9 59.0 28 160 -10 46 13 12 47 15 10 45 39 39 47 50 34 -1.84 122 0 0 46 57 39 9 10 6.7 28 161 -11 46 26 50 47 29 1 45 53 11 48 4 33 -1.84 123 0 0 47 11 50 9 10 14.3 28 162 -11 46 40 55 47 43 19 46 7 9 48 19 0 -1.84 124 0 0 47 26 28 9 10 22.0 28 163 -12 46 55 26 47 58 4 46 21 33 48 33 53 -1.84 125 0 0 47 41 32 9 10 29.6 28 164 -13 47 10 22 48 13 15 46 36 22 48 49 12 -1.84 126 0 0 47 57 1 9 10 37.2 28 165 -14 47 25 44 48 28 51 46 51 37 49 4 57 -1.84 127 0 0 48 12 55 9 10 44.8 28 167 -14 47 41 31 48 44 53 47 7 16 49 21 8 -1.84 128 0 0 48 29 14 9 10 52.3 28 168 -15 47 57 43 49 1 20 47 23 20 49 37 44 -1.84 129 0 0 48 45 57 9 10 59.8 28 169 -16 48 14 18 49 18 10 47 39 47 49 54 45 -1.84 130 0 0 49 3 3 9 11 7.2 28 170 -17 48 31 17 49 35 25 47 56 37 50 12 9 -1.84 131 0 0 49 20 32 9 11 14.6 28 171 -17 48 48 38 49 53 3 48 13 50 50 29 56 -1.84 132 0 0 49 38 24 9 11 22.0 27 172 -18 49 6 22 50 11 3 48 31 26 50 48 7 -1.84 133 0 0 49 56 38 9 11 29.2 27 173 -19 49 24 27 50 29 25 48 49 22 51 6 39 -1.84 134 0 0 50 15 12 9 11 36.4 27 175 -20 49 42 54 50 48 9 49 7 40 51 25 34 -1.84 135 0 0 50 34 8 9 11 43.5 27 176 -20 50 1 40 51 7 13 49 26 18 51 44 49 -1.84 136 0 0 50 53 23 9 11 50.6 27 177 -21 50 20 47 51 26 38 49 45 16 52 4 24 -1.84 137 0 0 51 12 58 9 11 57.5 26 178 -22 50 40 13 51 46 22 50 4 33 52 24 19 -1.84 138 0 0 51 32 51 9 12 4.4 26 179 -22 50 59 57 52 6 24 50 24 8 52 44 33 -1.84 139 0 0 51 53 2 9 12 11.1 26 180 -23 51 19 59 52 26 45 50 44 0 53 5 5 -1.84 140 0 0 52 13 30 9 12 17.8 25 181 -24 51 40 18 52 47 23 51 4 10 53 25 54 -1.84 141 0 0 52 34 14 9 12 24.3 25 182 -24 52 0 54 53 8 17 51 24 36 53 47 0 -1.84 142 0 0 52 55 14 9 12 30.7 24 184 -25 52 21 45 53 29 27 51 45 17 54 8 21 -1.84 143 0 0 53 16 29 9 12 37.0 24 185 -26 52 42 50 53 50 51 52 6 13 54 29 58 -1.84 144 0 0 53 37 58 9 12 43.2 24 186 -26 53 4 10 54 12 30 52 27 23 54 51 48 -1.84 145 0 0 53 59 40 9 12 49.3 23 187 -27 53 25 43 54 34 22 52 48 46 55 13 52 -1.84 146 0 0 54 21 35 9 12 55.2 23 188 -27 53 47 28 54 56 27 53 10 21 55 36 9 -1.84 147 0 0 54 43 41 9 13 1.0 22 189 -28 54 9 24 55 18 43 53 32 8 55 58 37 -1.84 148 0 0 55 5 57 9 13 6.6 22 190 -29 54 31 31 55 41 9 53 54 5 56 21 15 -1.84 149 0 0 55 28 23 9 13 12.2 21 191 -29 54 53 48 56 3 45 54 16 12 56 44 4 -1.84 150 0 0 55 50 59 9 13 17.5 21 192 -30 55 16 14 56 26 31 54 38 28 57 7 1 -1.84 151 0 0 56 13 42 9 13 22.7 20 193 -30 55 38 48 56 49 24 55 0 53 57 30 6 -1.84 152 0 0 56 36 32 9 13 27.8 20 194 -31 56 1 29 57 12 24 55 23 24 57 53 19 -1.84 153 0 0 56 59 29 9 13 32.7 19 195 -31 56 24 16 57 35 31 55 46 2 58 16 37 -1.84 154 0 0 57 22 30 9 13 37.5 19 196 -32 56 47 9 57 58 42 56 8 45 58 40 0 -1.84 155 0 0 57 45 36 9 13 42.1 18 197 -32 57 10 6 58 21 58 56 31 33 59 3 27 -1.84 156 0 0 58 8 46 9 13 46.5 18 198 -33 57 33 6 58 45 17 56 54 24 59 26 58 -1.84 157 0 0 58 31 58 9 13 50.8 17 199 -33 57 56 10 59 8 38 57 17 18 59 50 31 -1.84 158 0 0 58 55 11 9 13 55.0 17 200 -34 58 19 15 59 32 1 57 40 15 60 14 5 -1.84 159 0 0 59 18 26 9 13 58.9 16 201 -34 58 42 20 59 55 24 58 3 12 60 37 39 -1.84 160 0 0 59 41 39 9 14 2.7 16 202 -34 59 5 26 60 18 47 58 26 9 61 1 12 -1.84 161 0 0 60 4 52 9 14 6.4 15 203 -35 59 28 31 60 42 8 58 49 6 61 24 44 -1.84 162 0 0 60 28 3 9 14 9.9 15 204 -35 59 51 34 61 5 27 59 12 0 61 48 13 -1.84 163 0 0 60 51 10 9 14 13.2 14 205 -35 60 14 34 61 28 43 59 34 53 62 11 38 -1.84 164 0 0 61 14 14 9 14 16.4 13 206 -36 60 37 30 61 51 54 59 57 42 62 34 59 -1.84 165 0 0 61 37 13 9 14 19.4 13 207 -36 61 0 22 62 15 0 60 20 27 62 58 15 -1.84 166 0 0 62 0 6 9 14 22.3 12 208 -36 61 23 8 62 38 1 60 43 6 63 21 24 -1.84 167 0 0 62 22 52 9 14 25.0 12 209 -37 61 45 49 63 0 54 61 5 40 63 44 26 -1.85 168 0 0 62 45 32 9 14 27.6 11 210 -37 62 8 22 63 23 40 61 28 7 64 7 19 -1.85 169 0 0 63 8 3 9 14 30.0 11 211 -37 62 30 47 63 46 17 61 50 27 64 30 4 -1.85 170 0 0 63 30 25 9 14 32.3 10 212 -37 62 53 4 64 8 45 62 12 39 64 52 39 -1.85 171 0 0 63 52 37 9 14 34.4 10 212 -38 63 15 12 64 31 3 62 34 41 65 15 3 -1.85 172 0 0 64 14 39 9 14 36.4 9 213 -38 63 37 9 64 53 10 62 56 34 65 37 16 -1.85 173 0 0 64 36 30 9 14 38.2 8 214 -38 63 58 56 65 15 5 63 18 17 65 59 16 -1.85 174 0 0 64 58 8 9 14 39.9 8 215 -38 64 20 31 65 36 47 63 39 48 66 21 4 -1.85 175 0 0 65 19 35 9 14 41.5 7 216 -38 64 41 54 65 58 17 64 1 8 66 42 38 -1.86 176 0 0 65 40 48 9 14 43.0 7 217 -38 65 3 4 66 19 33 64 22 15 67 3 58 -1.86 177 0 0 66 1 47 9 14 44.3 6 218 -39 65 24 1 66 40 35 64 43 10 67 25 3 -1.86 178 0 0 66 22 31 9 14 45.5 6 219 -39 65 44 44 67 1 21 65 3 50 67 45 52 -1.86 179 0 0 66 43 1 9 14 46.6 5 220 -39 66 5 12 67 21 53 65 24 17 68 6 25 -1.87 180 0 0 67 3 16 9 14 47.5 5 221 -39 66 25 26 67 42 8 65 44 30 68 26 42 -1.87 -179 0 0 67 23 14 9 14 48.4 4 222 -39 66 45 23 68 2 7 66 4 27 68 46 42 -1.87 -178 0 0 67 42 56 9 14 49.1 4 223 -39 67 5 5 68 21 49 66 24 9 69 6 24 -1.88 -177 0 0 68 2 21 9 14 49.8 3 224 -39 67 24 31 68 41 14 66 43 35 69 25 48 -1.89 -176 0 0 68 21 29 9 14 50.3 3 225 -39 67 43 40 69 0 21 67 2 45 69 44 54 -1.90 -175 0 0 68 40 20 9 14 50.7 2 226 -39 68 2 32 69 19 10 67 21 39 70 3 41 -1.91 -174 0 0 68 58 52 9 14 51.1 2 226 -39 68 21 6 69 37 41 67 40 15 70 22 9 -1.93 -173 0 0 69 17 7 9 14 51.3 1 227 -39 68 39 23 69 55 53 67 58 34 70 40 18 -1.96 -172 0 0 69 35 3 9 14 51.5 1 228 -39 68 57 22 70 13 46 68 16 36 .. .. .. -2.03 -171 0 0 69 52 40 9 14 51.6 0 229 -39 69 15 3 .. .. .. 68 34 20 .. .. .. -2.25 -170 0 0 .. .. .... .. .. .. .. .. .. 69 32 25 .. .. .. 68 51 46 .. .. .. .... -169 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 69 8 55 .. .. .. .... Uncertainty in time = +/- 9 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5827-00327-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 23 12 48.6325 DE: -12 49 21.904 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 23 12 48.6325 DE: -12 49 21.904 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.3 * B mag [mag]: 9.0 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (9023) Mnesthus asteroid class: approx. diameter [km]: 51 approx. diameter ["]: 0.015 distance from Earth [AU]: 4.76960 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 date of fit: 2023 Apr 25 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): 0.027", 0.006", 90.359° remarks: * orbital elements for (9023)Mnesthus : Mean anomaly = 32.7000456261 deg Arg. of pericenter = 160.2465264477 deg Long. of node = 159.9015919511 deg Inclination = 23.9412281701 deg Eccentricity = 0.0645925134 Semimajor axis = 5.2097863470 AU Perihelion dist = 4.8732731525 AU Mag: H = 10.29, G = 0.15 Epoch of elements : MJD 60646.38207946 TDT (2024 Dec 02.3821) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr25,4.79,2024,12,2,9.169934,-0.194886,0.854833,5.951067,1.357835,0.005651,0.002471,0.000000,0.000000 139.2736,-12.6881,39.84,-22.05,False TYC 5827-00327-1,23.21350905,-12.8227510,8.99,8.25,7.85,0.2,0,,23.23525858,-12.6880837,9.60,9.55,0,0,0 9023,Mnesthus,17.85,51.826,4.7696,0,0,0.750,2.51,,4.6,0 0,32.6684,2024,12,2,160.2465,159.9016,23.9412,0.06459,5.20979,4.87327,10.29,5.0,0.15 1.556,0.0273,0.0057,90,0.0083,Known errors,0.97,0,-1,-1 20241202_0327-1,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:21 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org