IOTA/IOTA-ES occultation update for (415) Palatia / UCAC4 340-170088 event on 2024 Oct 14, 20:23 UT Visible from Summary ------- On 2024 Oct 14 UT, the 84.284 km diameter asteroid (415) Palatia will occult a 11.9 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.42 mag to 15.25 mag (the magnitude of the asteroid) for at most 4.380 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: 2024 Oct 14, 20:20 - 2024 Oct 14, 20:25 * geocentric midpoint of event [JD]: 2460598.34936400 * magnitude of target star: 11.88 * magnitude drop [mag]: 3.42 * estimated maximum duration [s]: 4.380 * Moon: 90 % sunlit, 64° distance * Sun: 79° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 173 * 1 sigma uncertainty interval [path widths]: +/- 0.03 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.006, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.006", 0.001", 93°) * approx speed of asteroid's shadow [km/s]: 19.2211 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 340-170088 by 415 Palatia on 2024 Oct 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 -100 0 0 .. .. .... .. .. .. .. .. .. 56 6 3 .. .. .. 56 1 48 .. .. .. .... - 99 0 0 56 38 20 20 20 25.4 0 133 20 55 35 45 .. .. .. 55 31 32 .. .. .. .... - 98 0 0 56 7 41 20 20 25.4 1 134 21 55 5 36 57 12 39 55 1 25 57 17 15 -0.62 - 97 0 0 55 37 12 20 20 25.6 2 134 21 54 35 37 56 41 36 54 31 28 56 46 9 -1.17 - 96 0 0 55 6 54 20 20 25.9 2 135 21 54 5 48 56 10 43 54 1 42 56 15 14 -1.37 - 95 0 0 54 36 48 20 20 26.3 3 136 21 53 36 12 55 40 4 53 32 7 55 44 32 -1.47 - 94 0 0 54 6 56 20 20 26.9 4 137 21 53 6 49 55 9 39 53 2 46 55 14 4 -1.54 - 93 0 0 53 37 19 20 20 27.6 5 138 21 52 37 41 54 39 29 52 33 40 54 43 52 -1.58 - 92 0 0 53 7 58 20 20 28.4 5 139 21 52 8 49 54 9 36 52 4 49 54 13 56 -1.61 - 91 0 0 52 38 54 20 20 29.3 6 139 21 51 40 13 53 40 0 51 36 16 53 44 18 -1.64 - 90 0 0 52 10 9 20 20 30.4 7 140 21 51 11 56 53 10 44 51 8 0 53 15 0 -1.65 - 89 0 0 51 41 44 20 20 31.5 8 141 21 50 43 57 52 41 47 50 40 3 52 46 1 -1.67 - 88 0 0 51 13 38 20 20 32.8 8 142 21 50 16 19 52 13 12 50 12 27 52 17 24 -1.68 - 87 0 0 50 45 55 20 20 34.3 9 143 21 49 49 1 51 44 59 49 45 11 51 49 8 -1.69 - 86 0 0 50 18 33 20 20 35.8 10 143 21 49 22 6 51 17 9 49 18 17 51 21 16 -1.70 - 85 0 0 49 51 36 20 20 37.5 11 144 20 48 55 33 50 49 43 48 51 46 50 53 48 -1.71 - 84 0 0 49 25 2 20 20 39.3 11 145 20 48 29 25 50 22 42 48 25 39 50 26 45 -1.72 - 83 0 0 48 58 54 20 20 41.3 12 146 20 48 3 41 49 56 6 47 59 57 50 0 7 -1.72 - 82 0 0 48 33 12 20 20 43.3 13 147 20 47 38 22 49 29 58 47 34 40 49 33 57 -1.73 - 81 0 0 48 7 56 20 20 45.5 14 148 20 47 13 30 49 4 17 47 9 49 49 8 14 -1.73 - 80 0 0 47 43 9 20 20 47.8 14 148 19 46 49 5 48 39 4 46 45 25 48 43 0 -1.74 - 79 0 0 47 18 49 20 20 50.2 15 149 19 46 25 7 48 14 21 46 21 29 48 18 15 -1.74 - 78 0 0 46 54 59 20 20 52.7 16 150 19 46 1 39 47 50 7 45 58 2 47 53 59 -1.75 - 77 0 0 46 31 39 20 20 55.3 16 151 18 45 38 39 47 26 23 45 35 3 47 30 14 -1.75 - 76 0 0 46 8 49 20 20 58.1 17 152 18 45 16 9 47 3 11 45 12 35 47 7 0 -1.75 - 75 0 0 45 46 30 20 21 0.9 18 153 18 44 54 10 46 40 30 44 50 37 46 44 18 -1.76 - 74 0 0 45 24 42 20 21 3.9 18 154 17 44 32 41 46 18 22 44 29 10 46 22 8 -1.76 - 73 0 0 45 3 27 20 21 6.9 19 154 17 44 11 44 45 56 47 44 8 14 46 0 31 -1.76 - 72 0 0 44 42 44 20 21 10.1 20 155 16 43 51 20 45 35 44 43 47 51 45 39 27 -1.76 - 71 0 0 44 22 35 20 21 13.4 20 156 16 43 31 28 45 15 16 43 28 0 45 18 58 -1.77 - 70 0 0 44 3 0 20 21 16.7 21 157 15 43 12 9 44 55 22 43 8 42 44 59 2 -1.77 - 69 0 0 43 43 59 20 21 20.1 21 158 15 42 53 24 44 36 4 42 49 59 44 39 42 -1.77 - 68 0 0 43 25 32 20 21 23.7 22 159 14 42 35 13 44 17 20 42 31 49 44 20 57 -1.77 - 67 0 0 43 7 41 20 21 27.3 22 160 14 42 17 37 43 59 12 42 14 13 44 2 48 -1.78 - 66 0 0 42 50 25 20 21 31.0 23 161 13 42 0 35 43 41 40 41 57 13 43 45 15 -1.78 - 65 0 0 42 33 44 20 21 34.7 24 162 13 41 44 9 43 24 45 41 40 47 43 28 19 -1.78 - 64 0 0 42 17 41 20 21 38.6 24 163 12 41 28 19 43 8 26 41 24 58 43 11 59 -1.78 - 63 0 0 42 2 13 20 21 42.5 24 164 12 41 13 4 42 52 45 41 9 44 42 56 17 -1.79 - 62 0 0 41 47 23 20 21 46.5 25 165 11 40 58 25 42 37 41 40 55 6 42 41 12 -1.79 - 61 0 0 41 33 9 20 21 50.5 25 166 10 40 44 24 42 23 15 40 41 5 42 26 45 -1.79 - 60 0 0 41 19 33 20 21 54.6 26 167 10 40 30 59 42 9 27 40 27 41 42 12 56 -1.79 - 59 0 0 41 6 34 20 21 58.8 26 168 9 40 18 11 41 56 17 40 14 53 41 59 46 -1.79 - 58 0 0 40 54 14 20 22 3.0 26 169 8 40 6 0 41 43 46 40 2 43 41 47 13 -1.79 - 57 0 0 40 42 31 20 22 7.3 27 170 8 39 54 27 41 31 53 39 51 11 41 35 20 -1.80 - 56 0 0 40 31 27 20 22 11.6 27 171 7 39 43 32 41 20 39 39 40 16 41 24 5 -1.80 - 55 0 0 40 21 1 20 22 16.0 27 172 6 39 33 14 41 10 4 39 29 59 41 13 30 -1.80 - 54 0 0 40 11 14 20 22 20.4 28 173 6 39 23 35 41 0 9 39 20 21 41 3 34 -1.80 - 53 0 0 40 2 6 20 22 24.8 28 174 5 39 14 34 40 50 53 39 11 20 40 54 17 -1.80 - 52 0 0 39 53 37 20 22 29.3 28 175 4 39 6 12 40 42 16 39 2 59 40 45 40 -1.80 - 51 0 0 39 45 47 20 22 33.8 28 176 4 38 58 28 40 34 20 38 55 15 40 37 43 -1.80 - 50 0 0 39 38 37 20 22 38.3 28 177 3 38 51 23 40 27 3 38 48 11 40 30 26 -1.80 - 49 0 0 39 32 6 20 22 42.8 29 178 2 38 44 57 40 20 26 38 41 45 40 23 49 -1.81 - 48 0 0 39 26 14 20 22 47.4 29 179 1 38 39 10 40 14 30 38 35 59 40 17 52 -1.81 - 47 0 0 39 21 2 20 22 52.0 29 180 1 38 34 3 40 9 13 38 30 51 40 12 35 -1.81 - 46 0 0 39 16 29 20 22 56.5 29 182 0 38 29 34 40 4 37 38 26 22 40 7 58 -1.81 - 45 0 0 39 12 37 20 23 1.1 29 183 -1 38 25 44 40 0 41 38 22 33 40 4 2 -1.81 - 44 0 0 39 9 24 20 23 5.7 29 184 -2 38 22 34 39 57 25 38 19 23 40 0 46 -1.81 - 43 0 0 39 6 51 20 23 10.3 29 185 -3 38 20 3 39 54 50 38 16 52 39 58 11 -1.81 - 42 0 0 39 4 58 20 23 14.9 29 186 -3 38 18 11 39 52 55 38 15 0 39 56 16 -1.81 - 41 0 0 39 3 44 20 23 19.5 29 187 -4 38 16 59 39 51 40 38 13 48 39 55 1 -1.81 - 40 0 0 39 3 11 20 23 24.0 29 188 -5 38 16 26 39 51 6 38 13 15 39 54 27 -1.81 - 39 0 0 39 3 17 20 23 28.6 29 189 -6 38 16 32 39 51 13 38 13 22 39 54 34 -1.81 - 38 0 0 39 4 4 20 23 33.1 28 190 -6 38 17 18 39 52 0 38 14 8 39 55 21 -1.81 - 37 0 0 39 5 30 20 23 37.6 28 191 -7 38 18 44 39 53 27 38 15 33 39 56 48 -1.81 - 36 0 0 39 7 36 20 23 42.1 28 192 -8 38 20 48 39 55 35 38 17 37 39 58 56 -1.82 - 35 0 0 39 10 22 20 23 46.6 28 193 -9 38 23 32 39 58 23 38 20 21 40 1 44 -1.82 - 34 0 0 39 13 47 20 23 51.0 28 194 -10 38 26 55 40 1 52 38 23 44 40 5 13 -1.82 - 33 0 0 39 17 53 20 23 55.4 27 195 -10 38 30 57 40 6 0 38 27 46 40 9 22 -1.82 - 32 0 0 39 22 38 20 23 59.7 27 196 -11 38 35 38 40 10 49 38 32 27 40 14 11 -1.82 - 31 0 0 39 28 2 20 24 4.0 27 197 -12 38 40 59 40 16 18 38 37 47 40 19 40 -1.82 - 30 0 0 39 34 6 20 24 8.2 26 198 -13 38 46 58 40 22 27 38 43 46 40 25 49 -1.82 - 29 0 0 39 40 49 20 24 12.4 26 199 -14 38 53 36 40 29 16 38 50 24 40 32 39 -1.82 - 28 0 0 39 48 12 20 24 16.6 26 200 -14 39 0 53 40 36 44 38 57 40 40 40 8 -1.82 - 27 0 0 39 56 14 20 24 20.6 25 201 -15 39 8 49 40 44 53 39 5 35 40 48 17 -1.82 - 26 0 0 40 4 54 20 24 24.7 25 202 -16 39 17 22 40 53 41 39 14 9 40 57 5 -1.82 - 25 0 0 40 14 14 20 24 28.6 24 203 -17 39 26 34 41 3 8 39 23 20 41 6 33 -1.82 - 24 0 0 40 24 11 20 24 32.5 24 204 -17 39 36 25 41 13 14 39 33 10 41 16 40 -1.82 - 23 0 0 40 34 48 20 24 36.3 23 205 -18 39 46 53 41 24 0 39 43 37 41 27 26 -1.82 - 22 0 0 40 46 2 20 24 40.0 23 206 -19 39 57 58 41 35 24 39 54 42 41 38 51 -1.82 - 21 0 0 40 57 55 20 24 43.7 22 207 -20 40 9 41 41 47 27 40 6 25 41 50 54 -1.82 - 20 0 0 41 10 25 20 24 47.3 22 208 -20 40 22 2 42 0 8 40 18 45 42 3 36 -1.82 - 19 0 0 41 23 33 20 24 50.8 21 209 -21 40 34 59 42 13 27 40 31 41 42 16 57 -1.82 - 18 0 0 41 37 18 20 24 54.2 21 210 -22 40 48 33 42 27 24 40 45 15 42 30 55 -1.82 - 17 0 0 41 51 41 20 24 57.5 20 211 -23 41 2 44 42 41 59 40 59 24 42 45 30 -1.82 - 16 0 0 42 6 40 20 25 0.7 20 211 -23 41 17 31 42 57 11 41 14 10 43 0 43 -1.82 - 15 0 0 42 22 15 20 25 3.9 19 212 -24 41 32 53 43 13 1 41 29 32 43 16 34 -1.82 - 14 0 0 42 38 26 20 25 6.9 18 213 -25 41 48 51 43 29 26 41 45 29 43 33 1 -1.82 - 13 0 0 42 55 13 20 25 9.8 18 214 -25 42 5 25 43 46 29 42 2 2 43 50 4 -1.82 - 12 0 0 43 12 36 20 25 12.7 17 215 -26 42 22 33 44 4 7 42 19 9 44 7 43 -1.82 - 11 0 0 43 30 34 20 25 15.4 16 216 -27 42 40 15 44 22 21 42 36 50 44 25 58 -1.82 - 10 0 0 43 49 6 20 25 18.0 16 216 -27 42 58 32 44 41 10 42 55 6 44 44 49 -1.83 - 9 0 0 44 8 12 20 25 20.5 15 217 -28 43 17 22 45 0 34 43 13 55 45 4 14 -1.83 - 8 0 0 44 27 52 20 25 22.9 14 218 -29 43 36 45 45 20 32 43 33 17 45 24 14 -1.83 - 7 0 0 44 48 5 20 25 25.2 14 219 -29 43 56 41 45 41 5 43 53 12 45 44 47 -1.83 - 6 0 0 45 8 51 20 25 27.4 13 220 -30 44 17 10 46 2 10 44 13 39 46 5 54 -1.83 - 5 0 0 45 30 10 20 25 29.4 12 220 -30 44 38 9 46 23 49 44 34 38 46 27 34 -1.83 - 4 0 0 45 52 0 20 25 31.3 11 221 -31 44 59 41 46 45 59 44 56 8 46 49 46 -1.83 - 3 0 0 46 14 20 20 25 33.1 11 222 -31 45 21 42 47 8 42 45 18 8 47 12 31 -1.84 - 2 0 0 46 37 12 20 25 34.8 10 223 -32 45 44 13 47 31 56 45 40 38 47 35 46 -1.84 - 1 0 0 47 0 34 20 25 36.4 9 224 -32 46 7 14 47 55 40 46 3 37 47 59 32 -1.84 0 0 0 47 24 24 20 25 37.8 8 224 -33 46 30 44 48 19 55 46 27 6 48 23 48 -1.84 1 0 0 47 48 44 20 25 39.1 8 225 -33 46 54 41 48 44 38 46 51 2 48 48 34 -1.85 2 0 0 48 13 31 20 25 40.3 7 226 -33 47 19 6 49 9 51 47 15 25 49 13 48 -1.85 3 0 0 48 38 46 20 25 41.3 6 227 -34 47 43 57 49 35 31 47 40 15 49 39 30 -1.86 4 0 0 49 4 26 20 25 42.2 5 227 -34 48 9 15 50 1 37 48 5 31 50 5 38 -1.87 5 0 0 49 30 33 20 25 43.0 5 228 -35 48 34 57 50 28 11 48 31 11 50 32 14 -1.88 6 0 0 49 57 4 20 25 43.7 4 229 -35 49 1 3 50 55 9 48 57 16 50 59 14 -1.90 7 0 0 50 23 59 20 25 44.2 3 230 -35 49 27 33 51 22 32 49 23 44 51 26 39 -1.93 8 0 0 50 51 17 20 25 44.6 2 230 -35 49 54 25 51 50 19 49 50 35 51 54 28 -1.97 9 0 0 51 18 57 20 25 44.9 1 231 -36 50 21 39 52 18 29 50 17 47 52 22 40 -2.07 10 0 0 51 46 58 20 25 45.0 1 232 -36 50 49 14 52 47 0 50 45 20 .. .. .. -2.40 11 0 0 .. .. .... .. .. .. .. .. .. 51 17 8 .. .. .. 51 13 12 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 340-170088 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 47 11.1763 DE: -22 00 45.906 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 47 11.1762 DE: -22 00 45.906 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (415) Palatia asteroid class: approx. diameter [km]: 84 approx. diameter ["]: 0.037 distance from Earth [AU]: 3.11160 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#79 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): 0.006", 0.001", 92.93° remarks: * orbital elements for (415)Palatia : Mean anomaly = 265.5770453217 deg Arg. of pericenter = 299.1985849656 deg Long. of node = 126.3021599753 deg Inclination = 8.2205533473 deg Eccentricity = 0.3007012721 Semimajor axis = 2.7912471124 AU Perihelion dist = 1.9519155550 AU Mag: H = 9.39, G = 0.15 Epoch of elements : MJD 60597.84936383 TDT (2024 Oct 14.8494) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#792023Apr24,4.38,2024,10,14,20.384736,0.045039,0.872650,10.834350,-0.562332,0.005696,0.000499,0.000000,0.000000 -47.4741,-21.9868,-129.32,-8.56,False UCAC4 340-170088,18.78643789,-22.0127517,12.51,11.88,11.54,0.0,0,,18.81112509,-21.9867680,3.42,3.32,0,0,0 415,Palatia,15.25,84.284,3.1116,0,0,2.202,-1.59,,4.4,0 0,265.3975,2024,10,14,299.1986,126.3022,8.2206,0.30070,2.79125,1.95192,9.39,5.0,0.15 1.034,0.0060,0.0013,93,0.0013,Known errors,0.84,0,-1,-1 20241014_170088,60140.63 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org