IOTA/IOTA-ES occultation update for (1782) Schneller / UCAC4 369-181482 event on 2024 Nov 18, 10:58 UT Visible from Summary ------- On 2024 Nov 18 UT, the 22.588 km diameter asteroid (1782) Schneller will occult a 10.9 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.59 mag to 17.52 mag (the magnitude of the asteroid) for at most 0.940 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: 95 * date and approx. time of event: 2024 Nov 18, 10:56 - 2024 Nov 18, 11:01 * geocentric midpoint of event [JD]: 2460632.95758833 * magnitude of target star: 10.93 * magnitude drop [mag]: 6.59 * estimated maximum duration [s]: 0.940 * Moon: 91 % sunlit, 135° distance * Sun: 78° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 44 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.005", 76°) * approx speed of asteroid's shadow [km/s]: 24.1551 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 369-181482 by 1782 Schneller on 2024 Nov 18 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 21 0 0 41 30 46 10 56 41.8 1 112 29 41 17 52 41 43 45 41 6 32 41 55 19 .... 22 0 0 41 13 14 10 56 41.9 1 113 29 41 0 24 41 26 9 40 49 7 41 37 39 -1.06 23 0 0 40 56 15 10 56 42.1 2 114 29 40 43 29 41 9 7 40 32 15 41 20 34 -1.29 24 0 0 40 39 51 10 56 42.4 3 114 29 40 27 8 40 52 40 40 15 57 41 4 4 -1.40 25 0 0 40 24 2 10 56 42.9 4 115 29 40 11 22 40 36 47 40 0 14 40 48 9 -1.46 26 0 0 40 8 48 10 56 43.4 5 116 29 39 56 11 40 21 30 39 45 5 40 32 49 -1.50 27 0 0 39 54 9 10 56 44.0 5 116 29 39 41 35 40 6 48 39 30 32 40 18 4 -1.53 28 0 0 39 40 6 10 56 44.8 6 117 29 39 27 35 39 52 42 39 16 34 40 3 56 -1.55 29 0 0 39 26 39 10 56 45.6 7 118 29 39 14 10 39 39 12 39 3 11 39 50 23 -1.57 30 0 0 39 13 48 10 56 46.6 8 118 29 39 1 21 39 26 19 38 50 25 39 37 28 -1.59 31 0 0 39 1 33 10 56 47.6 9 119 29 38 49 9 39 14 2 38 38 15 39 25 8 -1.60 32 0 0 38 49 55 10 56 48.7 9 120 29 38 37 33 39 2 22 38 26 41 39 13 26 -1.61 33 0 0 38 38 54 10 56 50.0 10 120 29 38 26 35 38 51 18 38 15 44 39 2 21 -1.61 34 0 0 38 28 30 10 56 51.3 11 121 29 38 16 13 38 40 52 38 5 24 38 51 53 -1.62 35 0 0 38 18 44 10 56 52.7 12 122 29 38 6 28 38 31 4 37 55 40 38 42 3 -1.63 36 0 0 38 9 34 10 56 54.3 12 122 28 37 57 20 38 21 53 37 46 35 38 32 50 -1.63 37 0 0 38 1 3 10 56 55.9 13 123 28 37 48 51 38 13 20 37 38 6 38 24 16 -1.64 38 0 0 37 53 9 10 56 57.6 14 124 28 37 40 59 38 5 25 37 30 15 38 16 20 -1.64 39 0 0 37 45 54 10 56 59.4 15 124 28 37 33 44 37 58 8 37 23 2 38 9 1 -1.65 40 0 0 37 39 16 10 57 1.3 15 125 27 37 27 8 37 51 29 37 16 27 38 2 22 -1.65 41 0 0 37 33 17 10 57 3.3 16 126 27 37 21 10 37 45 29 37 10 30 37 56 20 -1.65 42 0 0 37 27 56 10 57 5.3 17 127 27 37 15 50 37 40 7 37 5 11 37 50 58 -1.66 43 0 0 37 23 14 10 57 7.5 17 127 26 37 11 8 37 35 24 37 0 30 37 46 13 -1.66 44 0 0 37 19 10 10 57 9.7 18 128 26 37 7 5 37 31 19 36 56 27 37 42 8 -1.66 45 0 0 37 15 45 10 57 12.0 19 129 26 37 3 41 37 27 53 36 53 3 37 38 42 -1.67 46 0 0 37 12 59 10 57 14.4 19 130 25 37 0 55 37 25 7 36 50 18 37 35 55 -1.67 47 0 0 37 10 51 10 57 16.9 20 130 25 36 58 48 37 22 59 36 48 11 37 33 47 -1.67 48 0 0 37 9 22 10 57 19.4 21 131 24 36 57 19 37 21 30 36 46 43 37 32 18 -1.67 49 0 0 37 8 33 10 57 22.1 21 132 24 36 56 30 37 20 41 36 45 53 37 31 28 -1.67 50 0 0 37 8 23 10 57 24.8 22 133 23 36 56 19 37 20 30 36 45 43 37 31 18 -1.68 51 0 0 37 8 51 10 57 27.5 22 134 23 36 56 48 37 20 59 36 46 11 37 31 47 -1.68 52 0 0 37 9 59 10 57 30.4 23 135 22 36 57 55 37 22 7 36 47 18 37 32 55 -1.68 53 0 0 37 11 45 10 57 33.3 24 135 22 36 59 41 37 23 54 36 49 4 37 34 42 -1.68 54 0 0 37 14 11 10 57 36.3 24 136 21 37 2 6 37 26 20 36 51 28 37 37 9 -1.68 55 0 0 37 17 16 10 57 39.3 25 137 20 37 5 10 37 29 25 36 54 32 37 40 15 -1.68 56 0 0 37 20 59 10 57 42.4 25 138 20 37 8 53 37 33 10 36 58 14 37 44 0 -1.69 57 0 0 37 25 22 10 57 45.6 26 139 19 37 13 15 37 37 34 37 2 35 37 48 25 -1.69 58 0 0 37 30 24 10 57 48.8 26 140 19 37 18 16 37 42 37 37 7 35 37 53 29 -1.69 59 0 0 37 36 5 10 57 52.0 27 141 18 37 23 56 37 48 19 37 13 14 37 59 13 -1.69 60 0 0 37 42 25 10 57 55.3 27 142 17 37 30 14 37 54 41 37 19 31 38 5 35 -1.69 61 0 0 37 49 24 10 57 58.7 27 143 17 37 37 12 38 1 41 37 26 27 38 12 37 -1.69 62 0 0 37 57 2 10 58 2.1 28 144 16 37 44 48 38 9 20 37 34 2 38 20 17 -1.69 63 0 0 38 5 18 10 58 5.6 28 145 15 37 53 2 38 17 38 37 42 15 38 28 37 -1.69 64 0 0 38 14 13 10 58 9.1 28 146 14 38 1 55 38 26 35 37 51 6 38 37 35 -1.69 65 0 0 38 23 46 10 58 12.6 29 147 14 38 11 27 38 36 10 38 0 36 38 47 12 -1.69 66 0 0 38 33 58 10 58 16.2 29 148 13 38 21 36 38 46 24 38 10 44 38 57 28 -1.70 67 0 0 38 44 47 10 58 19.8 29 149 12 38 32 24 38 57 16 38 21 29 39 8 22 -1.70 68 0 0 38 56 15 10 58 23.4 29 150 12 38 43 49 39 8 46 38 32 53 39 19 55 -1.70 69 0 0 39 8 21 10 58 27.1 30 151 11 38 55 53 39 20 55 38 44 54 39 32 6 -1.70 70 0 0 39 21 5 10 58 30.7 30 152 10 39 8 34 39 33 41 38 57 33 39 44 55 -1.70 71 0 0 39 34 26 10 58 34.4 30 153 9 39 21 52 39 47 5 39 10 49 39 58 21 -1.70 72 0 0 39 48 25 10 58 38.2 30 155 8 39 35 48 40 1 7 39 24 42 40 12 26 -1.70 73 0 0 40 3 0 10 58 41.9 30 156 8 39 50 20 40 15 46 39 39 12 40 27 7 -1.70 74 0 0 40 18 13 10 58 45.7 30 157 7 40 5 30 40 31 1 39 54 18 40 42 26 -1.70 75 0 0 40 34 2 10 58 49.4 30 158 6 40 21 15 40 46 54 40 10 1 40 58 21 -1.70 76 0 0 40 50 27 10 58 53.2 30 159 5 40 37 37 41 3 22 40 26 20 41 14 53 -1.70 77 0 0 41 7 28 10 58 57.0 30 160 5 40 54 35 41 20 27 40 43 14 41 32 1 -1.70 78 0 0 41 25 5 10 59 0.7 30 161 4 41 12 8 41 38 8 41 0 44 41 49 45 -1.70 79 0 0 41 43 17 10 59 4.5 30 163 3 41 30 16 41 56 24 41 18 49 42 8 5 -1.70 80 0 0 42 2 4 10 59 8.3 30 164 2 41 48 59 42 15 15 41 37 29 42 27 0 -1.70 81 0 0 42 21 26 10 59 12.0 30 165 1 42 8 17 42 34 41 41 56 43 42 46 30 -1.70 82 0 0 42 41 22 10 59 15.8 30 166 0 42 28 9 42 54 42 42 16 31 43 6 34 -1.70 83 0 0 43 1 51 10 59 19.5 30 167 0 42 48 33 43 15 15 42 36 52 43 27 12 -1.70 84 0 0 43 22 54 10 59 23.2 30 168 -1 43 9 31 43 36 22 42 57 45 43 48 23 -1.70 85 0 0 43 44 29 10 59 26.9 29 169 -2 43 31 1 43 58 2 43 19 11 44 10 7 -1.70 86 0 0 44 6 36 10 59 30.5 29 171 -3 43 53 4 44 20 15 43 41 10 44 32 24 -1.70 87 0 0 44 29 15 10 59 34.1 29 172 -4 44 15 38 44 42 58 44 3 39 44 55 13 -1.70 88 0 0 44 52 24 10 59 37.7 29 173 -4 44 38 42 45 6 13 44 26 39 45 18 32 -1.70 89 0 0 45 16 4 10 59 41.3 28 174 -5 45 2 16 45 29 58 44 50 9 45 42 21 -1.70 90 0 0 45 40 12 10 59 44.8 28 175 -6 45 26 20 45 54 12 45 14 8 46 6 41 -1.70 91 0 0 46 4 50 10 59 48.3 28 176 -7 45 50 52 46 18 56 45 38 35 46 31 29 -1.71 92 0 0 46 29 57 10 59 51.7 27 177 -8 46 15 53 46 44 8 46 3 31 46 56 47 -1.71 93 0 0 46 55 30 10 59 55.1 27 178 -9 46 41 21 47 9 47 46 28 54 47 22 32 -1.71 94 0 0 47 21 31 10 59 58.5 27 180 -9 47 7 15 47 35 54 46 54 44 47 48 44 -1.71 95 0 0 47 47 57 11 0 1.7 26 181 -10 47 33 36 48 2 27 47 20 59 48 15 22 -1.71 96 0 0 48 14 49 11 0 5.0 26 182 -11 48 0 21 48 29 24 47 47 39 48 42 25 -1.71 97 0 0 48 42 4 11 0 8.1 25 183 -12 48 27 30 48 56 46 48 14 42 49 9 53 -1.71 98 0 0 49 9 42 11 0 11.2 25 184 -12 48 55 2 49 24 31 48 42 9 49 37 44 -1.71 99 0 0 49 37 43 11 0 14.2 24 185 -13 49 22 56 49 52 38 49 9 57 50 5 57 -1.71 100 0 0 50 6 5 11 0 17.2 24 186 -14 49 51 11 50 21 7 49 38 7 50 34 32 -1.71 101 0 0 50 34 47 11 0 20.1 23 187 -15 50 19 46 50 49 55 50 6 36 51 3 27 -1.71 102 0 0 51 3 48 11 0 22.9 22 188 -15 50 48 41 51 19 3 50 35 25 51 32 41 -1.71 103 0 0 51 33 7 11 0 25.7 22 189 -16 51 17 53 51 48 29 51 4 31 52 2 14 -1.71 104 0 0 52 2 42 11 0 28.3 21 190 -17 51 47 22 52 18 12 51 33 54 52 32 3 -1.71 105 0 0 52 32 34 11 0 30.9 21 191 -17 52 17 6 52 48 11 52 3 32 53 2 8 -1.71 106 0 0 53 2 39 11 0 33.4 20 192 -18 52 47 4 53 18 23 52 33 25 53 32 27 -1.71 107 0 0 53 32 58 11 0 35.8 19 193 -19 53 17 16 53 48 49 53 3 30 54 3 0 -1.71 108 0 0 54 3 28 11 0 38.2 19 194 -19 53 47 40 54 19 27 53 33 48 54 33 45 -1.71 109 0 0 54 34 10 11 0 40.4 18 195 -20 54 18 13 54 50 16 54 4 15 55 4 40 -1.71 110 0 0 55 5 0 11 0 42.6 18 196 -21 54 48 56 55 21 13 54 34 52 55 35 44 -1.71 111 0 0 55 35 57 11 0 44.7 17 197 -21 55 19 47 55 52 18 55 5 37 56 6 56 -1.71 112 0 0 56 7 2 11 0 46.6 16 198 -22 55 50 44 56 23 30 55 36 28 56 38 14 -1.71 113 0 0 56 38 11 11 0 48.5 16 199 -23 56 21 46 56 54 47 56 7 24 57 9 38 -1.71 114 0 0 57 9 24 11 0 50.3 15 200 -23 56 52 52 57 26 7 56 38 23 57 41 4 -1.72 115 0 0 57 40 39 11 0 52.1 14 201 -24 57 24 0 57 57 29 57 9 25 58 12 33 -1.72 116 0 0 58 11 54 11 0 53.7 14 202 -24 57 55 8 58 28 51 57 40 28 58 44 2 -1.72 117 0 0 58 43 8 11 0 55.2 13 202 -25 58 26 16 59 0 13 58 11 30 59 15 30 -1.72 118 0 0 59 14 21 11 0 56.6 12 203 -25 58 57 21 59 31 32 58 42 29 59 46 56 -1.72 119 0 0 59 45 29 11 0 58.0 11 204 -26 59 28 23 60 2 47 59 13 25 60 18 17 -1.72 120 0 0 60 16 31 11 0 59.3 11 205 -26 59 59 19 60 33 56 59 44 16 60 49 32 -1.72 121 0 0 60 47 27 11 1 0.4 10 206 -26 60 30 8 61 4 58 60 15 0 61 20 40 -1.73 122 0 0 61 18 14 11 1 1.5 9 207 -27 61 0 49 61 35 52 60 45 36 61 51 39 -1.73 123 0 0 61 48 51 11 1 2.5 9 208 -27 61 31 21 62 6 35 61 16 2 62 22 28 -1.73 124 0 0 62 19 17 11 1 3.4 8 209 -28 62 1 41 62 37 7 61 46 17 62 53 5 -1.73 125 0 0 62 49 30 11 1 4.3 7 210 -28 62 31 48 63 7 25 62 16 20 63 23 29 -1.73 126 0 0 63 19 28 11 1 5.0 7 211 -28 63 1 42 63 37 29 62 46 10 63 53 38 -1.74 127 0 0 63 49 11 11 1 5.7 6 212 -29 63 31 20 64 7 17 63 15 44 64 23 30 -1.74 128 0 0 64 18 37 11 1 6.3 5 213 -29 64 0 41 64 36 47 63 45 1 64 53 5 -1.75 129 0 0 64 47 44 11 1 6.8 5 213 -29 64 29 44 65 5 58 64 14 1 65 22 20 -1.75 130 0 0 65 16 32 11 1 7.3 4 214 -29 64 58 28 65 34 50 64 42 41 65 51 15 -1.76 131 0 0 65 44 59 11 1 7.6 4 215 -30 65 26 51 66 3 21 65 11 2 66 19 49 -1.77 132 0 0 66 13 3 11 1 7.9 3 216 -30 65 54 53 66 31 29 65 39 1 66 48 0 -1.78 133 0 0 66 40 45 11 1 8.2 2 217 -30 66 22 32 66 59 13 66 6 38 67 15 47 -1.80 134 0 0 67 8 3 11 1 8.4 2 218 -30 66 49 48 67 26 33 66 33 51 67 43 9 -1.83 135 0 0 67 34 55 11 1 8.5 1 219 -30 67 16 38 67 53 27 67 0 40 68 10 5 -1.90 136 0 0 68 1 21 11 1 8.6 1 220 -31 67 43 3 68 19 55 67 27 4 68 36 35 -2.09 137 0 0 .. .. .... .. .. .. .. .. .. 68 9 2 .. .. .. 67 53 1 .. .. .. .... Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 369-181482 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 08 12.4981 DE: -16 21 59.760 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 08 12.4980 DE: -16 21 59.761 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.300) * V mag [mag]: 10.9 * B mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1782) Schneller asteroid class: approx. diameter [km]: 23 approx. diameter ["]: 0.011 distance from Earth [AU]: 2.92890 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.018", 0.005", 76.347° remarks: * orbital elements for (1782)Schneller : Mean anomaly = 54.4911570372 deg Arg. of pericenter = 106.5612579542 deg Long. of node = 157.3677045469 deg Inclination = 1.5452065099 deg Eccentricity = 0.1519806309 Semimajor axis = 3.1170583712 AU Perihelion dist = 2.6433258733 AU Mag: H = 11.90, G = 0.15 Epoch of elements : MJD 60632.45758787 TDT (2024 Nov 18.4576) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,0.94,2024,11,18,10.982120,-0.233916,0.828012,13.118692,3.712185,0.005523,0.001689,0.000000,0.000000 94.6838,-16.2671,11.58,-19.39,False UCAC4 369-181482,21.13680506,-16.3666000,11.36,10.93,10.70,0.0,0,,21.15980342,-16.2671127,6.59,6.37,0,0,0 1782,Schneller,17.52,22.588,2.9289,0,0,2.736,11.15,,1.8,0 0,54.4092,2024,11,18,106.5613,157.3677,1.5452,0.15198,3.11706,2.64333,11.89,5.0,0.15 1.443,0.0183,0.0047,76,0.0047,Known errors,1.65,0,-1,-1 20241118_181482,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org