IOTA/IOTA-ES occultation update for (647) Adelgunde / TYC 6762-00995-1 event on 2024 Apr 09, 10:35 UT Visible from Summary ------- On 2024 Apr 09 UT, the 10.2188228942562 km diameter asteroid (647) Adelgunde will occult a 9.7 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.98 mag to 15.65 mag (the magnitude of the asteroid) for at most 1.230 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: 98 * date and approx. time of event: 2024 Apr 09, 10:29 - 2024 Apr 09, 10:41 * geocentric midpoint of event [JD]: 2460409.94113620 * magnitude of target star: 9.67 * magnitude drop [mag]: 5.98 * estimated maximum duration [s]: 1.230 * Moon: 1 % sunlit, 155° distance * Sun: 145° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.002", 95°) * approx speed of asteroid's shadow [km/s]: 8.9854 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6762-00995-1 by 647 Adelgunde on 2024 Apr 9 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 -155 0 1 63 6 54 10 41 0.5 0 155 -19 .. .. .. 62 51 59 .. .. .. 62 41 38 .... -154 0 1 62 7 29 10 41 0.3 1 156 -20 62 22 3 61 53 9 62 32 30 61 43 12 -0.69 -153 0 1 61 9 5 10 40 59.5 2 157 -21 61 23 5 60 55 18 61 33 7 60 45 42 -1.24 -152 0 1 60 11 43 10 40 58.3 3 158 -22 60 25 12 59 58 25 60 34 51 59 49 10 -1.43 -151 0 1 59 15 20 10 40 56.5 4 159 -23 59 28 21 59 2 30 59 37 39 58 53 33 -1.53 -150 0 0 58 19 57 10 40 54.3 5 160 -23 58 32 32 58 7 32 58 41 31 57 58 52 -1.59 -149 0 0 57 25 34 10 40 51.6 6 161 -24 57 37 45 57 13 33 57 46 26 57 5 9 -1.63 -148 0 0 56 32 11 10 40 48.5 7 162 -25 56 43 59 56 20 30 56 52 24 56 12 21 -1.66 -147 0 0 55 39 46 10 40 44.9 8 162 -26 55 51 13 55 28 26 55 59 23 55 20 30 -1.68 -146 0 0 54 48 20 10 40 40.9 9 163 -26 54 59 28 54 37 18 55 7 24 54 29 36 -1.70 -145 0 0 53 57 53 10 40 36.5 10 164 -27 54 8 43 53 47 9 54 16 26 53 39 38 -1.71 -144 0 0 53 8 24 10 40 31.7 11 165 -28 53 18 57 52 57 56 53 26 28 52 50 37 -1.72 -143 0 0 52 19 53 10 40 26.5 12 166 -28 52 30 11 52 9 41 52 37 30 52 2 32 -1.73 -142 0 0 51 32 20 10 40 21.0 13 167 -29 51 42 23 51 22 22 51 49 32 51 15 23 -1.74 -141 0 0 50 45 45 10 40 15.2 14 168 -29 50 55 35 50 36 1 51 2 34 50 29 11 -1.75 -140 0 0 50 0 8 10 40 8.9 15 168 -30 50 9 44 49 50 36 50 16 34 49 43 55 -1.75 -139 0 0 49 15 28 10 40 2.4 16 169 -30 49 24 52 49 6 8 49 31 33 48 59 35 -1.76 -138 0 0 48 31 45 10 39 55.6 17 170 -31 48 40 58 48 22 36 48 47 31 48 16 11 -1.76 -137 0 0 47 48 59 10 39 48.5 17 171 -31 47 58 1 47 40 1 48 4 26 47 33 44 -1.76 -136 0 0 47 7 10 10 39 41.1 18 172 -31 47 16 2 46 58 22 47 22 19 46 52 11 -1.77 -135 0 0 46 26 18 10 39 33.5 19 173 -32 46 35 0 46 17 39 46 41 10 46 11 35 -1.77 -134 0 0 45 46 21 10 39 25.5 20 174 -32 45 54 54 45 37 52 46 0 58 45 31 54 -1.77 -133 0 0 45 7 21 10 39 17.4 21 175 -32 45 15 45 44 59 0 45 21 43 44 53 8 -1.77 -132 0 0 44 29 17 10 39 9.0 21 176 -32 44 37 33 44 21 4 44 43 25 44 15 17 -1.77 -131 0 0 43 52 8 10 39 0.5 22 177 -32 44 0 16 43 44 2 44 6 3 43 38 21 -1.77 -130 0 0 43 15 55 10 38 51.7 22 177 -32 43 23 56 43 7 56 43 29 37 43 2 20 -1.77 -129 0 0 42 40 37 10 38 42.7 23 178 -33 42 48 31 42 32 45 42 54 7 42 27 14 -1.78 -128 0 0 42 6 13 10 38 33.6 24 179 -33 42 14 1 41 58 29 42 19 32 41 53 2 -1.78 -127 0 0 41 32 45 10 38 24.3 24 180 -33 41 40 26 41 25 6 41 45 53 41 19 44 -1.78 -126 0 0 41 0 11 10 38 14.9 25 181 -33 41 7 46 40 52 38 41 13 9 40 47 20 -1.78 -125 0 0 40 28 32 10 38 5.3 25 182 -32 40 36 1 40 21 4 40 41 19 40 15 50 -1.78 -124 0 0 39 57 46 10 37 55.6 26 183 -32 40 5 10 39 50 24 40 10 24 39 45 13 -1.78 -123 0 0 39 27 54 10 37 45.7 26 184 -32 39 35 13 39 20 37 39 40 23 39 15 30 -1.78 -122 0 0 38 58 56 10 37 35.8 27 185 -32 39 6 10 38 51 44 39 11 17 38 46 40 -1.78 -121 0 0 38 30 51 10 37 25.8 27 186 -32 38 38 0 38 23 43 38 43 4 38 18 43 -1.78 -120 0 0 38 3 39 10 37 15.7 27 187 -32 38 10 44 37 56 36 38 15 45 37 51 38 -1.78 -119 0 0 37 37 20 10 37 5.5 28 188 -31 37 44 21 37 30 21 37 49 19 37 25 27 -1.77 -118 0 0 37 11 54 10 36 55.2 28 189 -31 37 18 51 37 4 59 37 23 46 37 0 7 -1.77 -117 0 0 36 47 21 10 36 44.9 28 190 -31 36 54 14 36 40 30 36 59 6 36 35 40 -1.77 -116 0 0 36 23 40 10 36 34.5 29 191 -30 36 30 29 36 16 52 36 35 19 36 12 5 -1.77 -115 0 0 36 0 51 10 36 24.1 29 192 -30 36 7 37 35 54 7 36 12 24 35 49 22 -1.77 -114 0 0 35 38 54 10 36 13.7 29 193 -30 35 45 37 35 32 13 35 50 22 35 27 31 -1.77 -113 0 0 35 17 49 10 36 3.2 29 194 -29 35 24 29 35 11 11 35 29 12 35 6 31 -1.77 -112 0 0 34 57 35 10 35 52.7 29 195 -29 35 4 12 34 51 0 35 8 53 34 46 22 -1.77 -111 0 0 34 38 13 10 35 42.3 29 196 -28 34 44 47 34 31 41 34 49 26 34 27 4 -1.77 -110 0 0 34 19 43 10 35 31.8 29 197 -28 34 26 14 34 13 13 34 30 51 34 8 38 -1.77 -109 0 0 34 2 3 10 35 21.4 29 198 -27 34 8 32 33 55 35 34 13 8 33 51 3 -1.77 -108 0 0 33 45 15 10 35 10.9 29 199 -27 33 51 42 33 38 49 33 56 16 33 34 18 -1.77 -107 0 0 33 29 18 10 35 0.5 29 200 -26 33 35 42 33 22 54 33 40 15 33 18 24 -1.77 -106 0 0 33 14 11 10 34 50.1 29 201 -26 33 20 34 33 7 50 33 25 5 33 3 21 -1.77 -105 0 0 32 59 55 10 34 39.8 29 202 -25 33 6 16 32 53 36 33 10 46 32 49 8 -1.77 -104 0 0 32 46 30 10 34 29.5 29 203 -24 32 52 49 32 40 12 32 57 18 32 35 46 -1.77 -103 0 0 32 33 55 10 34 19.3 29 204 -24 32 40 13 32 27 39 32 44 40 32 23 14 -1.77 -102 0 0 32 22 11 10 34 9.2 29 205 -23 32 28 28 32 15 57 32 32 54 32 11 33 -1.77 -101 0 0 32 11 18 10 33 59.1 29 206 -23 32 17 33 32 5 4 32 21 58 32 0 41 -1.77 -100 0 0 32 1 15 10 33 49.1 28 207 -22 32 7 28 31 55 2 32 11 53 31 50 40 -1.78 - 99 0 0 31 52 2 10 33 39.2 28 208 -21 31 58 14 31 45 50 32 2 38 31 41 29 -1.78 - 98 0 0 31 43 39 10 33 29.3 28 209 -21 31 49 50 31 37 29 31 54 13 31 33 8 -1.78 - 97 0 0 31 36 7 10 33 19.6 28 210 -20 31 42 17 31 29 57 31 46 39 31 25 37 -1.78 - 96 0 0 31 29 24 10 33 10.0 27 211 -19 31 35 34 31 23 16 31 39 56 31 18 56 -1.78 - 95 0 0 31 23 33 10 33 0.5 27 212 -18 31 29 42 31 17 25 31 34 3 31 13 6 -1.78 - 94 0 0 31 18 31 10 32 51.1 27 213 -18 31 24 40 31 12 24 31 29 1 31 8 5 -1.78 - 93 0 0 31 14 20 10 32 41.8 26 213 -17 31 20 28 31 8 13 31 24 49 31 3 55 -1.78 - 92 0 0 31 10 59 10 32 32.7 26 214 -16 31 17 7 31 4 52 31 21 28 31 0 34 -1.78 - 91 0 0 31 8 29 10 32 23.7 25 215 -15 31 14 37 31 2 22 31 18 57 30 58 4 -1.78 - 90 0 0 31 6 49 10 32 14.8 25 216 -15 31 12 57 31 0 43 31 17 17 30 56 25 -1.79 - 89 0 0 31 6 0 10 32 6.1 24 217 -14 31 12 8 30 59 53 31 16 28 30 55 35 -1.79 - 88 0 0 31 6 1 10 31 57.6 24 218 -13 31 12 9 30 59 55 31 16 30 30 55 37 -1.79 - 87 0 0 31 6 54 10 31 49.2 23 218 -12 31 13 2 31 0 47 31 17 22 30 56 28 -1.79 - 86 0 0 31 8 37 10 31 41.0 23 219 -11 31 14 45 31 2 29 31 19 6 30 58 11 -1.79 - 85 0 0 31 11 11 10 31 33.0 22 220 -11 31 17 20 31 5 3 31 21 41 31 0 44 -1.79 - 84 0 0 31 14 36 10 31 25.1 22 221 -10 31 20 46 31 8 28 31 25 7 31 4 9 -1.80 - 83 0 0 31 18 53 10 31 17.4 21 221 -9 31 25 3 31 12 44 31 29 25 31 8 24 -1.80 - 82 0 0 31 24 1 10 31 10.0 21 222 -8 31 30 12 31 17 52 31 34 35 31 13 31 -1.80 - 81 0 0 31 30 1 10 31 2.7 20 223 -7 31 36 13 31 23 51 31 40 36 31 19 30 -1.80 - 80 0 0 31 36 53 10 30 55.7 19 223 -7 31 43 6 31 30 42 31 47 30 31 26 20 -1.81 - 79 0 0 31 44 37 10 30 48.8 19 224 -6 31 50 51 31 38 24 31 55 16 31 34 2 -1.81 - 78 0 0 31 53 14 10 30 42.2 18 225 -5 31 59 29 31 46 59 32 3 55 31 42 36 -1.81 - 77 0 0 32 2 43 10 30 35.8 17 225 -4 32 8 59 31 56 27 32 13 26 31 52 3 -1.81 - 76 0 0 32 13 4 10 30 29.6 17 226 -3 32 19 23 32 6 47 32 23 50 32 2 22 -1.82 - 75 0 0 32 24 19 10 30 23.7 16 227 -2 32 30 39 32 18 0 32 35 8 32 13 34 -1.82 - 74 0 0 32 36 27 10 30 18.0 15 227 -1 32 42 49 32 30 7 32 47 19 32 25 39 -1.82 - 73 0 0 32 49 29 10 30 12.6 14 228 -1 32 55 53 32 43 6 33 0 24 32 38 37 -1.83 - 72 0 0 33 3 24 10 30 7.4 14 229 0 33 9 50 32 57 0 33 14 23 32 52 29 -1.83 - 71 0 0 33 18 14 10 30 2.5 13 229 1 33 24 42 33 11 47 33 29 16 33 7 15 -1.84 - 70 0 0 33 33 58 10 29 57.9 12 230 2 33 40 28 33 27 29 33 45 5 33 22 55 -1.84 - 69 0 0 33 50 37 10 29 53.6 11 231 3 33 57 10 33 44 5 34 1 48 33 39 29 -1.85 - 68 0 0 34 8 11 10 29 49.5 10 231 4 34 14 46 34 1 36 34 19 26 33 56 59 -1.85 - 67 0 0 34 26 40 10 29 45.8 10 232 4 34 33 19 34 20 3 34 38 1 34 15 24 -1.86 - 66 0 0 34 46 5 10 29 42.3 9 232 5 34 52 47 34 39 25 34 57 31 34 34 44 -1.86 - 65 0 0 35 6 27 10 29 39.2 8 233 6 35 13 12 34 59 44 35 17 59 34 55 0 -1.87 - 64 0 0 35 27 45 10 29 36.3 7 233 7 35 34 34 35 20 59 35 39 23 35 16 13 -1.88 - 63 0 0 35 50 0 10 29 33.8 6 234 8 35 56 52 35 43 10 36 1 44 35 38 22 -1.89 - 62 0 0 36 13 13 10 29 31.6 5 235 9 36 20 9 36 6 19 36 25 3 36 1 28 -1.91 - 61 0 0 36 37 23 10 29 29.8 4 235 9 36 44 23 36 30 25 36 49 20 36 25 31 -1.93 - 60 0 0 37 2 32 10 29 28.3 3 236 10 37 9 36 36 55 30 37 14 36 36 50 33 -1.97 - 59 0 0 37 28 39 10 29 27.1 3 236 11 37 35 47 37 21 32 37 40 51 37 16 32 -2.02 - 58 0 0 37 55 45 10 29 26.3 2 237 12 38 2 58 37 48 34 38 8 5 37 43 31 -2.14 - 57 0 0 38 23 50 10 29 25.9 1 238 13 38 31 8 38 16 34 38 36 18 38 11 28 -2.54 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.3 Data for the target star ------------------------ * name: TYC 6762-00995-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 20 27.0508 DE: -24 15 47.343 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 20 27.0509 DE: -24 15 47.344 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.300) * V mag [mag]: 9.7 * B mag [mag]: 11.4 * Diameter [mas]: 0.60 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (647) Adelgunde asteroid class: approx. diameter [km]: 10 approx. diameter ["]: 0.007 distance from Earth [AU]: 1.95370 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#52 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): 0.011", 0.002", 95.4° remarks: * orbital elements for (647)Adelgunde : Mean anomaly = 140.1680336769 deg Arg. of pericenter = 175.7254739552 deg Long. of node = 254.5540272064 deg Inclination = 7.3244826652 deg Eccentricity = 0.1929344726 Semimajor axis = 2.4431154150 AU Perihelion dist = 1.9717542310 AU Mag: H = 11.22, G = 0.15 Epoch of elements : MJD 60409.44113612 TDT (2024 Apr 09.4411) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#522023Apr24,1.23,2024,4,9,10.587269,0.259542,0.830167,-4.840565,1.513394,-0.003023,0.001282,0.000001,0.000000 -126.5009,-24.3520,21.56,7.85,False TYC 6762-00995-1,15.34084745,-24.2631509,11.36,9.67,8.76,0.6,4,,15.36488814,-24.3519508,5.98,6.44,0,0,0 647,Adelgunde,15.65,11.069,1.9537,0,0,-1.595,6.82,,0.8,0 0,140.0542,2024,4,9,175.7255,254.5540,7.3245,0.19293,2.44312,1.97175,11.22,5.0,0.15 1.353,0.0110,0.0016,95,0.0028,Known errors,1.39,0,-1,-1 20240409_0995-1,60139.28 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 06:47 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org