IOTA/IOTA-ES occultation update for (1039) Sonneberga / UCAC4 413-146026 event on 2024 Dec 19, 01:04 UT Visible from Summary ------- On 2024 Dec 19 UT, the 34.374 km diameter asteroid (1039) Sonneberga will occult a 11.9 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 5.34 mag to 17.20 mag (the magnitude of the asteroid) for at most 1.170 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: 99 * date and approx. time of event: 2024 Dec 19, 01:01 - 2024 Dec 19, 01:08 * geocentric midpoint of event [JD]: 2460663.54491475 * magnitude of target star: 11.87 * magnitude drop [mag]: 5.34 * estimated maximum duration [s]: 1.170 * Moon: 84 % sunlit, 160° distance * Sun: 65° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 37 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.008, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.009", 0.002", 69°) * approx speed of asteroid's shadow [km/s]: 29.2731 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 413-146026 by 1039 Sonneberga on 2024 Dec 19 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 135 0 0 -37 28 24 1 1 17.3 0 99 61 -37 38 30 -37 18 19 -37 41 22 -37 15 28 .... 136 0 0 -37 36 2 1 1 17.3 1 98 62 -37 46 7 -37 25 58 -37 48 59 -37 23 7 0.31 137 0 0 -37 43 24 1 1 17.4 2 98 63 -37 53 29 -37 33 20 -37 56 20 -37 30 29 0.33 138 0 0 -37 50 30 1 1 17.6 3 97 63 -38 0 34 -37 40 26 -38 3 25 -37 37 36 0.35 139 0 0 -37 57 19 1 1 17.8 4 97 64 -38 7 23 -37 47 16 -38 10 14 -37 44 25 0.35 140 0 0 -38 3 52 1 1 18.0 4 96 65 -38 13 55 -37 53 50 -38 16 46 -37 50 59 0.36 141 0 0 -38 10 9 1 1 18.3 5 95 65 -38 20 11 -38 0 7 -38 23 2 -37 57 16 0.36 142 0 0 -38 16 9 1 1 18.6 6 95 66 -38 26 11 -38 6 8 -38 29 2 -38 3 17 0.36 143 0 0 -38 21 53 1 1 19.0 7 94 67 -38 31 55 -38 11 52 -38 34 46 -38 9 2 0.37 144 0 0 -38 27 21 1 1 19.4 8 93 67 -38 37 22 -38 17 20 -38 40 13 -38 14 30 0.37 145 0 0 -38 32 32 1 1 19.8 8 93 68 -38 42 33 -38 22 32 -38 45 24 -38 19 42 0.37 146 0 0 -38 37 27 1 1 20.3 9 92 68 -38 47 28 -38 27 27 -38 50 18 -38 24 37 0.37 147 0 0 -38 42 6 1 1 20.8 10 92 69 -38 52 6 -38 32 6 -38 54 56 -38 29 16 0.37 148 0 0 -38 46 28 1 1 21.4 11 91 69 -38 56 28 -38 36 28 -38 59 18 -38 33 39 0.37 149 0 0 -38 50 33 1 1 22.0 12 90 70 -39 0 33 -38 40 34 -39 3 23 -38 37 45 0.37 150 0 0 -38 54 22 1 1 22.7 12 90 70 -39 4 22 -38 44 24 -39 7 11 -38 41 34 0.37 151 0 0 -38 57 55 1 1 23.4 13 89 71 -39 7 54 -38 47 57 -39 10 44 -38 45 7 0.37 152 0 0 -39 1 11 1 1 24.2 14 88 71 -39 11 10 -38 51 13 -39 13 59 -38 48 24 0.37 153 0 0 -39 4 11 1 1 24.9 15 88 72 -39 14 9 -38 54 13 -39 16 59 -38 51 23 0.37 154 0 0 -39 6 54 1 1 25.8 15 87 72 -39 16 52 -38 56 56 -39 19 41 -38 54 7 0.37 155 0 0 -39 9 20 1 1 26.6 16 86 72 -39 19 18 -38 59 23 -39 22 8 -38 56 34 0.37 156 0 0 -39 11 30 1 1 27.6 17 86 73 -39 21 28 -39 1 33 -39 24 17 -38 58 44 0.37 157 0 0 -39 13 24 1 1 28.5 18 85 73 -39 23 21 -39 3 26 -39 26 11 -39 0 37 0.37 158 0 0 -39 15 0 1 1 29.5 19 84 73 -39 24 58 -39 5 4 -39 27 47 -39 2 15 0.37 159 0 0 -39 16 21 1 1 30.5 19 84 74 -39 26 18 -39 6 24 -39 29 8 -39 3 35 0.37 160 0 0 -39 17 25 1 1 31.6 20 83 74 -39 27 22 -39 7 28 -39 30 11 -39 4 39 0.37 161 0 0 -39 18 12 1 1 32.7 21 82 74 -39 28 9 -39 8 15 -39 30 58 -39 5 26 0.37 162 0 0 -39 18 42 1 1 33.9 22 82 74 -39 28 39 -39 8 46 -39 31 29 -39 5 57 0.37 163 0 0 -39 18 56 1 1 35.0 22 81 74 -39 28 53 -39 9 0 -39 31 43 -39 6 11 0.37 164 0 0 -39 18 53 1 1 36.3 23 80 74 -39 28 51 -39 8 57 -39 31 40 -39 6 8 0.37 165 0 0 -39 18 34 1 1 37.5 24 80 74 -39 28 31 -39 8 38 -39 31 21 -39 5 49 0.37 166 0 0 -39 17 58 1 1 38.9 25 79 74 -39 27 56 -39 8 2 -39 30 45 -39 5 13 0.37 167 0 0 -39 17 6 1 1 40.2 25 78 74 -39 27 3 -39 7 9 -39 29 52 -39 4 20 0.37 168 0 0 -39 15 57 1 1 41.6 26 78 74 -39 25 54 -39 6 0 -39 28 43 -39 3 11 0.37 169 0 0 -39 14 31 1 1 43.0 27 77 74 -39 24 28 -39 4 34 -39 27 18 -39 1 45 0.37 170 0 0 -39 12 48 1 1 44.5 28 76 73 -39 22 46 -39 2 51 -39 25 35 -39 0 2 0.37 171 0 0 -39 10 49 1 1 46.0 29 75 73 -39 20 47 -39 0 52 -39 23 36 -38 58 3 0.37 172 0 0 -39 8 33 1 1 47.5 29 75 73 -39 18 31 -38 58 36 -39 21 21 -38 55 47 0.37 173 0 0 -39 6 1 1 1 49.1 30 74 72 -39 15 59 -38 56 3 -39 18 48 -38 53 14 0.37 174 0 0 -39 3 12 1 1 50.7 31 73 72 -39 13 10 -38 53 14 -39 15 59 -38 50 25 0.37 175 0 0 -39 0 6 1 1 52.4 32 73 72 -39 10 4 -38 50 8 -39 12 54 -38 47 19 0.37 176 0 0 -38 56 43 1 1 54.1 32 72 71 -39 6 42 -38 46 45 -39 9 32 -38 43 56 0.37 177 0 0 -38 53 4 1 1 55.8 33 71 71 -39 3 3 -38 43 6 -39 5 53 -38 40 16 0.37 178 0 0 -38 49 8 1 1 57.6 34 70 70 -38 59 7 -38 39 9 -39 1 57 -38 36 20 0.37 179 0 0 -38 44 55 1 1 59.4 35 70 70 -38 54 55 -38 34 56 -38 57 45 -38 32 7 0.37 -180 0 0 -38 40 26 1 2 1.2 35 69 69 -38 50 26 -38 30 27 -38 53 16 -38 27 37 0.37 -179 0 0 -38 35 40 1 2 3.1 36 68 69 -38 45 40 -38 25 40 -38 48 30 -38 22 50 0.37 -178 0 0 -38 30 37 1 2 5.0 37 67 68 -38 40 38 -38 20 37 -38 43 28 -38 17 47 0.37 -177 0 0 -38 25 17 1 2 7.0 38 66 68 -38 35 18 -38 15 17 -38 38 9 -38 12 27 0.37 -176 0 0 -38 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0.39 - 89 0 0 -15 45 29 1 6 44.7 48 276 -10 -15 56 2 -15 34 57 -15 59 2 -15 31 58 0.39 - 88 0 0 -15 25 46 1 6 47.8 47 276 -11 -15 36 19 -15 15 14 -15 39 18 -15 12 15 0.39 - 87 0 0 -15 6 10 1 6 50.8 46 275 -12 -15 16 42 -14 55 38 -15 19 41 -14 52 39 0.39 - 86 0 0 -14 46 41 1 6 53.8 45 274 -13 -14 57 12 -14 36 10 -15 0 11 -14 33 11 0.39 - 85 0 0 -14 27 19 1 6 56.8 44 274 -14 -14 37 50 -14 16 49 -14 40 49 -14 13 50 0.39 - 84 0 0 -14 8 6 1 6 59.6 43 273 -15 -14 18 37 -13 57 36 -14 21 36 -13 54 38 0.39 - 83 0 0 -13 49 1 1 7 2.5 42 272 -16 -13 59 32 -13 38 32 -14 2 30 -13 35 34 0.39 - 82 0 0 -13 30 6 1 7 5.3 41 272 -17 -13 40 35 -13 19 37 -13 43 34 -13 16 39 0.39 - 81 0 0 -13 11 20 1 7 8.0 40 271 -18 -13 21 49 -13 0 51 -13 24 47 -12 57 54 0.39 - 80 0 0 -12 52 44 1 7 10.7 39 271 -19 -13 3 12 -12 42 16 -13 6 10 -12 39 18 0.39 - 79 0 0 -12 34 18 1 7 13.3 38 270 -20 -12 44 46 -12 23 51 -12 47 44 -12 20 53 0.39 - 78 0 0 -12 16 3 1 7 15.9 37 270 -21 -12 26 30 -12 5 36 -12 29 28 -12 2 39 0.39 - 77 0 0 -11 57 59 1 7 18.4 36 269 -22 -12 8 25 -11 47 33 -12 11 23 -11 44 36 0.39 - 76 0 0 -11 40 6 1 7 20.9 35 269 -23 -11 50 32 -11 29 41 -11 53 30 -11 26 44 0.39 - 75 0 0 -11 22 26 1 7 23.3 34 269 -24 -11 32 52 -11 12 1 -11 35 49 -11 9 5 0.39 - 74 0 0 -11 4 58 1 7 25.6 33 268 -25 -11 15 23 -10 54 34 -11 18 20 -10 51 37 0.39 - 73 0 0 -10 47 43 1 7 27.9 32 268 -26 -10 58 7 -10 37 20 -11 1 4 -10 34 23 0.39 - 72 0 0 -10 30 41 1 7 30.1 31 268 -27 -10 41 4 -10 20 18 -10 44 1 -10 17 22 0.39 - 71 0 0 -10 13 52 1 7 32.3 30 267 -28 -10 24 15 -10 3 30 -10 27 11 -10 0 34 0.39 - 70 0 0 - 9 57 17 1 7 34.3 29 267 -29 -10 7 39 - 9 46 56 -10 10 36 - 9 44 0 0.39 - 69 0 0 - 9 40 56 1 7 36.4 28 267 -30 - 9 51 18 - 9 30 36 - 9 54 14 - 9 27 40 0.39 - 68 0 0 - 9 24 50 1 7 38.3 27 266 -31 - 9 35 11 - 9 14 30 - 9 38 7 - 9 11 35 0.39 - 67 0 0 - 9 8 59 1 7 40.2 26 266 -32 - 9 19 19 - 8 58 39 - 9 22 14 - 8 55 44 0.39 - 66 0 0 - 8 53 22 1 7 42.0 25 266 -33 - 9 3 42 - 8 43 3 - 9 6 37 - 8 40 8 0.39 - 65 0 0 - 8 38 1 1 7 43.8 24 266 -34 - 8 48 20 - 8 27 43 - 8 51 15 - 8 24 48 0.39 - 64 0 0 - 8 22 56 1 7 45.4 23 265 -35 - 8 33 14 - 8 12 38 - 8 36 9 - 8 9 44 0.39 - 63 0 0 - 8 8 6 1 7 47.1 22 265 -36 - 8 18 24 - 7 57 50 - 8 21 19 - 7 54 55 0.40 - 62 0 0 - 7 53 33 1 7 48.6 21 265 -37 - 8 3 50 - 7 43 17 - 8 6 45 - 7 40 23 0.40 - 61 0 0 - 7 39 17 1 7 50.1 20 265 -38 - 7 49 33 - 7 29 1 - 7 52 27 - 7 26 7 0.40 - 60 0 0 - 7 25 17 1 7 51.5 19 265 -38 - 7 35 32 - 7 15 2 - 7 38 27 - 7 12 8 0.40 - 59 0 0 - 7 11 34 1 7 52.8 18 264 -39 - 7 21 49 - 7 1 20 - 7 24 43 - 6 58 26 0.40 - 58 0 0 - 6 58 8 1 7 54.1 17 264 -40 - 7 8 23 - 6 47 55 - 7 11 17 - 6 45 1 0.40 - 57 0 0 - 6 45 0 1 7 55.3 16 264 -41 - 6 55 14 - 6 34 48 - 6 58 8 - 6 31 54 0.40 - 56 0 0 - 6 32 10 1 7 56.4 15 264 -42 - 6 42 23 - 6 21 58 - 6 45 16 - 6 19 5 0.40 - 55 0 0 - 6 19 38 1 7 57.4 14 264 -43 - 6 29 50 - 6 9 26 - 6 32 43 - 6 6 33 0.40 - 54 0 0 - 6 7 23 1 7 58.4 13 264 -44 - 6 17 35 - 5 57 12 - 6 20 28 - 5 54 19 0.40 - 53 0 0 - 5 55 27 1 7 59.3 12 264 -45 - 6 5 38 - 5 45 17 - 6 8 31 - 5 42 24 0.40 - 52 0 0 - 5 43 50 1 8 0.1 11 263 -46 - 5 54 0 - 5 33 40 - 5 56 53 - 5 30 47 0.41 - 51 0 0 - 5 32 31 1 8 0.9 10 263 -47 - 5 42 40 - 5 22 22 - 5 45 33 - 5 19 29 0.41 - 50 0 0 - 5 21 31 1 8 1.6 9 263 -47 - 5 31 40 - 5 11 22 - 5 34 32 - 5 8 30 0.41 - 49 0 0 - 5 10 50 1 8 2.2 8 263 -48 - 5 20 58 - 5 0 42 - 5 23 51 - 4 57 50 0.41 - 48 0 0 - 5 0 28 1 8 2.7 7 263 -49 - 5 10 36 - 4 50 21 - 5 13 28 - 4 47 29 0.42 - 47 0 0 - 4 50 25 1 8 3.2 6 263 -50 - 5 0 33 - 4 40 19 - 5 3 25 - 4 37 27 0.42 - 46 0 0 - 4 40 42 1 8 3.6 5 263 -51 - 4 50 49 - 4 30 36 - 4 53 41 - 4 27 44 0.43 - 45 0 0 - 4 31 19 1 8 3.9 4 263 -51 - 4 41 25 - 4 21 13 - 4 44 17 - 4 18 22 0.45 - 44 0 0 - 4 22 15 1 8 4.1 3 263 -52 - 4 32 21 - 4 12 10 - 4 35 13 - 4 9 19 0.47 - 43 0 0 - 4 13 31 1 8 4.3 2 263 -53 - 4 23 36 - 4 3 26 - 4 26 28 - 4 0 35 0.51 - 42 0 0 - 4 5 7 1 8 4.4 1 263 -54 - 4 15 12 - 3 55 3 - 4 18 3 - 3 52 12 0.64 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 413-146026 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 22 13 01.4204 DE: -07 35 11.946 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 22 13 01.4204 DE: -07 35 11.946 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.9 * B mag [mag]: 12.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1039) Sonneberga asteroid class: approx. diameter [km]: 34 approx. diameter ["]: 0.015 distance from Earth [AU]: 3.10320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#58 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): 0.009", 0.002", 68.937° remarks: * orbital elements for (1039)Sonneberga : Mean anomaly = 161.2896533685 deg Arg. of pericenter = 325.7291233069 deg Long. of node = 221.6463805804 deg Inclination = 4.5533805496 deg Eccentricity = 0.0611457403 Semimajor axis = 2.6791883602 AU Perihelion dist = 2.5153674046 AU Mag: H = 11.54, G = 0.15 Epoch of elements : MJD 60663.04491479 TDT (2024 Dec 19.0449) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#582023Apr24,1.17,2024,12,19,1.077954,0.101997,-0.339490,15.817658,4.774649,0.004998,0.002056,-0.000001,0.000000 -130.7179,-7.4641,163.10,-23.42,False UCAC4 413-146026,22.21706126,-7.5866515,12.42,11.87,11.57,0.0,4,K,22.23878318,-7.4640565,5.34,5.19,0,0,0 1039,Sonneberga,17.20,34.374,3.1032,0,0,3.014,13.53,,2.0,0 0,161.0548,2024,12,18,325.7291,221.6464,4.5534,0.06115,2.67919,2.51537,11.53,5.0,0.15 1.142,0.0090,0.0021,69,0.0022,Known errors,1.02,0,-1,-1 20241219_146026,60140.75 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org