IOTA/IOTA-ES occultation update for (134) Sophrosyne / UCAC4 246-148537 event on 2024 Jun 12, 18:49 UT Visible from Summary ------- On 2024 Jun 12 UT, the 104.913606420211 km diameter asteroid (134) Sophrosyne will occult a 11.7 mag star in the constellation Scorpius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 1.55 mag to 12.94 mag (the magnitude of the asteroid) for at most 8.470 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: 2024 Jun 12, 18:43 - 2024 Jun 12, 18:55 * geocentric midpoint of event [JD]: 2460474.28460958 * magnitude of target star: 11.69 * magnitude drop [mag]: 1.55 * estimated maximum duration [s]: 8.470 * Moon: 36 % sunlit, 114° distance * Sun: 161° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 156 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.005", 100°) * approx speed of asteroid's shadow [km/s]: 12.4047 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 246-148537 by 134 Sophrosyne on 2024 Jun 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 28 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 32 9 23 .. .. .. 31 59 30 .... 29 0 0 32 14 28 18 55 36.5 1 141 -19 .. .. .. 31 7 36 .. .. .. 30 57 55 .... 30 0 0 31 12 46 18 55 36.1 2 142 -20 32 20 33 30 7 14 32 30 45 29 57 44 -0.62 31 0 0 30 12 33 18 55 35.3 3 142 -21 31 18 56 29 8 17 31 28 55 28 58 57 -0.82 32 0 0 29 13 48 18 55 34.1 5 143 -23 30 18 51 28 10 43 30 28 38 28 1 34 -0.91 33 0 0 28 16 30 18 55 32.5 6 143 -24 29 20 18 27 14 34 29 29 54 27 5 35 -0.96 34 0 0 27 20 39 18 55 30.6 7 144 -25 28 23 16 26 19 49 28 32 41 26 10 58 -0.99 35 0 0 26 26 15 18 55 28.3 8 144 -26 27 27 44 25 26 26 27 36 58 25 17 44 -1.01 36 0 0 25 33 15 18 55 25.7 10 145 -28 26 33 41 24 34 26 26 42 45 24 25 52 -1.03 37 0 0 24 41 41 18 55 22.8 11 145 -29 25 41 6 23 43 47 25 50 0 23 35 22 -1.04 38 0 0 23 51 30 18 55 19.6 12 146 -30 24 49 57 22 54 30 24 58 42 22 46 12 -1.05 39 0 0 23 2 42 18 55 16.0 13 146 -31 24 0 14 22 6 33 24 8 51 21 58 22 -1.06 40 0 0 22 15 16 18 55 12.2 14 147 -33 23 11 56 21 19 55 23 20 25 21 11 52 -1.06 41 0 0 21 29 11 18 55 8.1 16 147 -34 22 25 1 20 34 37 22 33 23 20 26 39 -1.07 42 0 0 20 44 26 18 55 3.8 17 148 -35 21 39 29 19 50 36 21 47 43 19 42 45 -1.07 43 0 0 20 1 0 18 54 59.2 18 148 -36 20 55 19 19 7 53 21 3 26 19 0 8 -1.08 44 0 0 19 18 53 18 54 54.4 19 149 -37 20 12 29 18 26 25 20 20 29 18 18 46 -1.08 45 0 0 18 38 3 18 54 49.3 20 149 -38 19 30 58 17 46 14 19 38 52 17 38 40 -1.08 46 0 0 17 58 30 18 54 44.0 21 150 -39 18 50 46 17 7 17 18 58 34 16 59 48 -1.08 47 0 0 17 20 12 18 54 38.5 22 150 -40 18 11 51 16 29 34 18 19 34 16 22 10 -1.09 48 0 0 16 43 8 18 54 32.9 23 150 -41 17 34 12 15 53 3 17 41 49 15 45 44 -1.09 49 0 0 16 7 18 18 54 27.0 24 151 -42 16 57 48 15 17 45 17 5 21 15 10 31 -1.09 50 0 0 15 32 41 18 54 20.9 25 152 -43 16 22 39 14 43 38 16 30 7 14 36 28 -1.09 51 0 0 14 59 16 18 54 14.7 26 152 -44 15 48 44 14 10 42 15 56 6 14 3 36 -1.09 52 0 0 14 27 2 18 54 8.3 27 153 -45 15 16 0 13 38 55 15 23 19 13 31 53 -1.09 53 0 0 13 55 58 18 54 1.8 28 153 -46 14 44 29 13 8 17 14 51 43 13 1 19 -1.09 54 0 0 13 26 3 18 53 55.1 29 154 -47 14 14 8 12 38 47 14 21 18 12 31 53 -1.09 55 0 0 12 57 17 18 53 48.3 29 154 -48 13 44 57 12 10 25 13 52 3 12 3 34 -1.09 56 0 0 12 29 39 18 53 41.4 30 155 -49 13 16 55 11 43 9 13 23 58 11 36 21 -1.09 57 0 0 12 3 7 18 53 34.3 31 155 -50 12 50 1 11 16 59 12 57 1 11 10 14 -1.09 58 0 0 11 37 42 18 53 27.1 32 156 -51 12 24 15 10 51 54 12 31 11 10 45 12 -1.09 59 0 0 11 13 23 18 53 19.8 33 157 -52 11 59 36 10 27 54 12 6 29 10 21 15 -1.09 60 0 0 10 50 9 18 53 12.4 33 157 -52 11 36 2 10 4 58 11 42 52 9 58 21 -1.09 61 0 0 10 27 59 18 53 4.9 34 158 -53 11 13 34 9 43 5 11 20 21 9 36 31 -1.09 62 0 0 10 6 52 18 52 57.3 35 159 -54 10 52 10 9 22 15 10 58 55 9 15 43 -1.09 63 0 0 9 46 49 18 52 49.6 35 159 -54 10 31 51 9 2 27 10 38 33 8 55 58 -1.09 64 0 0 9 27 48 18 52 41.8 36 160 -55 10 12 34 8 43 41 10 19 15 8 37 13 -1.09 65 0 0 9 9 49 18 52 34.0 37 161 -56 9 54 21 8 25 55 10 0 59 8 19 30 -1.09 66 0 0 8 52 51 18 52 26.0 37 162 -56 9 37 10 8 9 11 9 43 46 8 2 47 -1.09 67 0 0 8 36 55 18 52 18.0 38 162 -57 9 21 1 7 53 26 9 27 35 7 47 4 -1.09 68 0 0 8 21 58 18 52 10.0 38 163 -57 9 5 53 7 38 41 9 12 26 7 32 20 -1.09 69 0 0 8 8 2 18 52 1.8 39 164 -58 8 51 47 7 24 55 8 58 17 7 18 36 -1.09 70 0 0 7 55 6 18 51 53.7 39 165 -58 8 38 40 7 12 8 8 45 9 7 5 51 -1.09 71 0 0 7 43 9 18 51 45.4 40 166 -59 8 26 34 7 0 20 8 33 1 6 54 3 -1.09 72 0 0 7 32 10 18 51 37.2 40 167 -59 8 15 27 6 49 29 8 21 53 6 43 14 -1.09 73 0 0 7 22 10 18 51 28.8 40 167 -59 8 5 19 6 39 37 8 11 45 6 33 23 -1.09 74 0 0 7 13 9 18 51 20.5 41 168 -59 7 56 11 6 30 42 8 2 35 6 24 29 -1.09 75 0 0 7 5 5 18 51 12.1 41 169 -60 7 48 1 6 22 44 7 54 25 6 16 32 -1.09 76 0 0 6 58 0 18 51 3.6 41 170 -60 7 40 50 6 15 44 7 47 13 6 9 32 -1.09 77 0 0 6 51 51 18 50 55.2 42 171 -60 7 34 37 6 9 40 7 40 59 6 3 29 -1.09 78 0 0 6 46 41 18 50 46.7 42 172 -60 7 29 23 6 4 33 7 35 44 5 58 23 -1.09 79 0 0 6 42 27 18 50 38.1 42 173 -60 7 25 6 6 0 23 7 31 27 5 54 13 -1.09 80 0 0 6 39 11 18 50 29.6 42 174 -60 7 21 47 5 57 8 7 28 7 5 50 59 -1.09 81 0 0 6 36 51 18 50 21.0 42 175 -60 7 19 26 5 54 51 7 25 46 5 48 41 -1.09 82 0 0 6 35 29 18 50 12.5 42 176 -60 7 18 2 5 53 29 7 24 22 5 47 20 -1.09 83 0 0 6 35 3 18 50 3.9 42 177 -60 7 17 36 5 53 4 7 23 56 5 46 55 -1.09 84 0 0 6 35 34 18 49 55.3 42 178 -60 7 18 8 5 53 35 7 24 28 5 47 25 -1.09 85 0 0 6 37 2 18 49 46.7 42 179 -59 7 19 37 5 55 1 7 25 57 5 48 52 -1.09 86 0 0 6 39 27 18 49 38.1 42 180 -59 7 22 3 5 57 25 7 28 24 5 51 15 -1.09 87 0 0 6 42 48 18 49 29.5 42 181 -59 7 25 27 6 0 44 7 31 48 5 54 34 -1.09 88 0 0 6 47 7 18 49 20.9 42 182 -58 7 29 49 6 5 0 7 36 11 5 58 49 -1.10 89 0 0 6 52 23 18 49 12.3 42 183 -58 7 35 9 6 10 12 7 41 31 6 4 1 -1.10 90 0 0 6 58 37 18 49 3.7 42 184 -58 7 41 27 6 16 21 7 47 50 6 10 9 -1.10 91 0 0 7 5 47 18 48 55.2 42 185 -57 7 48 43 6 23 27 7 55 7 6 17 14 -1.10 92 0 0 7 13 56 18 48 46.6 42 186 -57 7 56 58 6 31 29 8 3 22 6 25 16 -1.10 93 0 0 7 23 3 18 48 38.1 41 187 -56 8 6 12 6 40 30 8 12 37 6 34 16 -1.10 94 0 0 7 33 7 18 48 29.6 41 188 -55 8 16 24 6 50 27 8 22 50 6 44 12 -1.10 95 0 0 7 44 10 18 48 21.1 41 189 -55 8 27 35 7 1 22 8 34 3 6 55 6 -1.10 96 0 0 7 56 12 18 48 12.7 40 189 -54 8 39 46 7 13 15 8 46 15 7 6 58 -1.10 97 0 0 8 9 13 18 48 4.3 40 190 -54 8 52 57 7 26 7 8 59 28 7 19 48 -1.10 98 0 0 8 23 14 18 47 55.9 40 191 -53 9 7 9 7 39 57 9 13 41 7 33 37 -1.10 99 0 0 8 38 15 18 47 47.6 39 192 -52 9 22 21 7 54 46 9 28 55 7 48 24 -1.10 100 0 0 8 54 15 18 47 39.4 39 193 -51 9 38 34 8 10 35 9 45 10 8 4 12 -1.10 101 0 0 9 11 17 18 47 31.1 38 194 -51 9 55 49 8 27 24 10 2 27 8 20 59 -1.10 102 0 0 9 29 20 18 47 23.0 38 195 -50 10 14 6 8 45 13 10 20 46 8 38 46 -1.11 103 0 0 9 48 24 18 47 14.9 37 195 -49 10 33 26 9 4 3 10 40 8 8 57 34 -1.11 104 0 0 10 8 31 18 47 6.8 37 196 -48 10 53 48 9 23 55 11 0 33 9 17 23 -1.11 105 0 0 10 29 41 18 46 58.9 36 197 -47 11 15 15 9 44 48 11 22 2 9 38 14 -1.11 106 0 0 10 51 54 18 46 51.0 35 198 -47 11 37 46 10 6 44 11 44 36 10 0 8 -1.11 107 0 0 11 15 11 18 46 43.2 35 198 -46 12 1 22 10 29 43 12 8 15 10 23 4 -1.11 108 0 0 11 39 32 18 46 35.5 34 199 -45 12 26 4 10 53 45 12 33 0 10 47 4 -1.11 109 0 0 12 4 59 18 46 27.8 33 200 -44 12 51 52 11 18 52 12 58 51 11 12 7 -1.11 110 0 0 12 31 32 18 46 20.3 32 201 -43 13 18 47 11 45 4 13 25 50 11 38 16 -1.12 111 0 0 12 59 12 18 46 12.9 32 201 -42 13 46 50 12 12 21 13 53 57 12 5 30 -1.12 112 0 0 13 27 59 18 46 5.6 31 202 -41 14 16 2 12 40 45 14 23 12 12 33 50 -1.12 113 0 0 13 57 54 18 45 58.4 30 202 -40 14 46 24 13 10 15 14 53 37 13 3 17 -1.12 114 0 0 14 28 58 18 45 51.3 29 203 -39 15 17 55 13 40 53 15 25 13 13 33 52 -1.12 115 0 0 15 1 12 18 45 44.4 28 204 -38 15 50 38 14 12 40 15 58 0 14 5 34 -1.12 116 0 0 15 34 37 18 45 37.6 28 204 -37 16 24 32 14 45 36 16 32 0 14 38 26 -1.12 117 0 0 16 9 13 18 45 31.0 27 205 -36 16 59 40 15 19 42 17 7 12 15 12 28 -1.13 118 0 0 16 45 1 18 45 24.5 26 205 -35 17 36 2 15 54 58 17 43 39 15 47 40 -1.13 119 0 0 17 22 2 18 45 18.2 25 206 -34 18 13 38 16 31 27 18 21 20 16 24 4 -1.13 120 0 0 18 0 17 18 45 12.1 24 207 -32 18 52 30 17 9 7 19 0 18 17 1 39 -1.13 121 0 0 18 39 47 18 45 6.1 23 207 -31 19 32 39 17 48 1 19 40 33 17 40 28 -1.13 122 0 0 19 20 33 18 45 0.4 22 208 -30 20 14 5 18 28 9 20 22 5 18 20 31 -1.14 123 0 0 20 2 36 18 44 54.9 21 208 -29 20 56 51 19 9 33 21 4 57 19 1 48 -1.14 124 0 0 20 45 57 18 44 49.5 20 209 -28 21 40 56 19 52 11 21 49 9 19 44 21 -1.14 125 0 0 21 30 36 18 44 44.5 19 209 -27 22 26 22 20 36 6 22 34 42 20 28 10 -1.14 126 0 0 22 16 34 18 44 39.6 17 210 -25 23 13 9 21 21 19 23 21 38 21 13 16 -1.15 127 0 0 23 3 53 18 44 35.0 16 210 -24 24 1 20 22 7 49 24 9 56 21 59 39 -1.15 128 0 0 23 52 33 18 44 30.7 15 211 -23 24 50 54 22 55 39 24 59 39 22 47 22 -1.15 129 0 0 24 42 35 18 44 26.6 14 211 -22 25 41 54 23 44 48 25 50 47 23 36 23 -1.15 130 0 0 25 34 0 18 44 22.9 13 212 -21 26 34 19 24 35 17 26 43 22 24 26 45 -1.16 131 0 0 26 26 49 18 44 19.4 12 212 -19 27 28 11 25 27 7 27 37 24 25 18 27 -1.16 132 0 0 27 21 2 18 44 16.3 10 213 -18 28 23 31 26 20 19 28 32 55 26 11 30 -1.17 133 0 0 28 16 41 18 44 13.4 9 213 -17 29 20 21 27 14 53 29 29 55 27 5 55 -1.18 134 0 0 29 13 46 18 44 11.0 8 214 -16 30 18 40 28 10 50 30 28 25 28 1 42 -1.19 135 0 0 30 12 17 18 44 8.9 7 214 -14 31 18 29 29 8 10 31 28 27 28 58 52 -1.20 136 0 0 31 12 15 18 44 7.1 5 215 -13 32 19 51 30 6 53 32 30 2 29 57 25 -1.22 137 0 0 32 13 41 18 44 5.8 4 215 -12 33 22 44 31 7 0 33 33 9 30 57 21 -1.25 138 0 0 33 16 35 18 44 4.8 3 216 -10 34 27 11 32 8 31 34 37 50 31 58 40 -1.31 139 0 0 34 20 57 18 44 4.3 1 216 -9 35 33 11 33 11 25 35 44 5 33 1 21 -1.52 140 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 34 15 43 .. .. .. 34 5 26 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: UCAC4 246-148537 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 58 44.9153 DE: -40 58 38.399 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 58 44.9153 DE: -40 58 38.399 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (134) Sophrosyne asteroid class: approx. diameter [km]: 105 approx. diameter ["]: 0.077 distance from Earth [AU]: 1.86680 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#131 date of fit: 2023 Apr 24 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): 0.012", 0.005", 99.6° remarks: * orbital elements for (134)Sophrosyne : Mean anomaly = 199.0375783313 deg Arg. of pericenter = 85.5961597449 deg Long. of node = 345.8454128721 deg Inclination = 11.6101562350 deg Eccentricity = 0.1150127895 Semimajor axis = 2.5638881335 AU Perihelion dist = 2.2690082074 AU Mag: H = 8.82, G = 0.28 Epoch of elements : MJD 60473.78461000 TDT (2024 Jun 12.7846) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1312023Apr24,8.47,2024,6,12,18.830630,-0.025925,0.737495,-6.997235,-0.246110,-0.000731,0.001666,0.000001,0.000000 86.0796,-40.9797,-102.44,23.21,False UCAC4 246-148537,17.97914314,-40.9773329,12.91,11.69,11.03,0.1,0,,18.00831140,-40.9796628,1.55,1.71,0,0,0 134,Sophrosyne,12.94,105.049,1.8668,0,0,-2.911,-1.15,,5.2,0 0,198.8492,2024,6,12,85.5962,345.8454,11.6102,0.11501,2.56389,2.26901,8.81,5.0,0.15 1.074,0.0117,0.0053,100,0.0057,Known errors,0.86,0,-1,-1 20240612_148537,60139.38 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 09:09 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org