IOTA/IOTA-ES occultation update for (10142) Sakka / TYC 7393-01562-1 event on 2024 Oct 14, 19:39 UT Visible from Summary ------- On 2024 Oct 14 UT, the 10.6404324378086 km diameter asteroid (10142) Sakka will occult a 9.7 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 7.66 mag to 17.35 mag (the magnitude of the asteroid) for at most 0.450 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: 87 * date and approx. time of event: 2024 Oct 14, 19:35 - 2024 Oct 14, 19:43 * geocentric midpoint of event [JD]: 2460598.31908300 * magnitude of target star: 9.69 * magnitude drop [mag]: 7.66 * estimated maximum duration [s]: 0.450 * Moon: 90 % sunlit, 69° distance * Sun: 74° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 12 * 1 sigma uncertainty interval [path widths]: +/- 0.57 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.002", 100°) * approx speed of asteroid's shadow [km/s]: 24.0099 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7393-01562-1 by 10142 Sakka 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 -122 0 0 14 3 27 19 35 20.0 0 123 67 13 59 44 14 7 9 13 55 31 14 11 23 .... -121 0 0 13 26 7 19 35 20.1 1 123 68 13 22 25 13 29 49 13 18 12 13 34 3 -0.09 -120 0 0 12 48 58 19 35 20.3 3 123 69 12 45 16 12 52 40 12 41 4 12 56 52 -0.21 -119 0 0 12 12 0 19 35 20.6 4 123 69 12 8 19 12 15 42 12 4 7 12 19 54 -0.26 -118 0 0 11 35 16 19 35 21.0 5 124 70 11 31 35 11 38 56 11 27 24 11 43 8 -0.28 -117 0 0 10 58 45 19 35 21.5 6 124 71 10 55 5 11 2 25 10 50 54 11 6 36 -0.30 -116 0 0 10 22 29 19 35 22.2 7 124 71 10 18 50 10 26 9 10 14 40 10 30 19 -0.31 -115 0 0 9 46 30 19 35 23.0 8 124 72 9 42 51 9 50 9 9 38 42 9 54 19 -0.32 -114 0 0 9 10 48 19 35 23.8 10 124 72 9 7 10 9 14 27 9 3 1 9 18 36 -0.32 -113 0 0 8 35 25 19 35 24.8 11 124 72 8 31 47 8 39 3 8 27 39 8 43 11 -0.33 -112 0 0 8 0 21 19 35 26.0 12 125 73 7 56 44 8 3 58 7 52 36 8 8 6 -0.33 -111 0 0 7 25 37 19 35 27.2 13 125 73 7 22 1 7 29 14 7 17 54 7 33 21 -0.33 -110 0 0 6 51 16 19 35 28.5 14 125 73 6 47 40 6 54 52 6 43 34 6 58 58 -0.34 -109 0 0 6 17 16 19 35 29.9 15 125 73 6 13 41 6 20 52 6 9 36 6 24 57 -0.34 -108 0 0 5 43 41 19 35 31.5 16 125 73 5 40 6 5 47 15 5 36 1 5 51 20 -0.34 -107 0 0 5 10 29 19 35 33.1 18 125 73 5 6 55 5 14 3 5 2 51 5 18 7 -0.34 -106 0 0 4 37 42 19 35 34.9 19 125 73 4 34 9 4 41 16 4 30 6 4 45 19 -0.35 -105 0 0 4 5 22 19 35 36.7 20 126 72 4 1 49 4 8 55 3 57 47 4 12 57 -0.35 -104 0 0 3 33 28 19 35 38.7 21 126 72 3 29 56 3 37 0 3 25 55 3 41 2 -0.35 -103 0 0 3 2 2 19 35 40.7 22 126 72 2 58 31 3 5 33 2 54 30 3 9 34 -0.35 -102 0 0 2 31 4 19 35 42.9 23 126 71 2 27 33 2 34 34 2 23 33 2 38 35 -0.35 -101 0 0 2 0 34 19 35 45.1 24 126 70 1 57 4 2 4 4 1 53 5 2 8 4 -0.35 -100 0 0 1 30 34 19 35 47.5 25 126 70 1 27 5 1 34 4 1 23 7 1 38 3 -0.35 - 99 0 0 1 1 5 19 35 49.9 26 126 69 0 57 36 1 4 33 0 53 39 1 8 31 -0.35 - 98 0 0 0 32 5 19 35 52.4 28 126 69 0 28 38 0 35 33 0 24 41 0 39 31 -0.35 - 97 0 0 0 3 37 19 35 55.0 29 127 68 0 0 10 0 7 5 - 0 3 46 0 11 1 -0.35 - 96 0 0 - 0 24 19 19 35 57.7 30 127 67 - 0 27 46 - 0 20 52 - 0 31 41 - 0 16 57 -0.36 - 95 0 0 - 0 51 43 19 36 0.5 31 127 66 - 0 55 9 - 0 48 17 - 0 59 4 - 0 44 23 -0.36 - 94 0 0 - 1 18 35 19 36 3.3 32 127 65 - 1 22 0 - 1 15 10 - 1 25 54 - 1 11 16 -0.36 - 93 0 0 - 1 44 54 19 36 6.2 33 127 65 - 1 48 19 - 1 41 29 - 1 52 12 - 1 37 36 -0.36 - 92 0 0 - 2 10 40 19 36 9.2 34 127 64 - 2 14 4 - 2 7 16 - 2 17 56 - 2 3 23 -0.36 - 91 0 0 - 2 35 52 19 36 12.3 35 127 63 - 2 39 15 - 2 32 28 - 2 43 6 - 2 28 37 -0.36 - 90 0 0 - 3 0 30 19 36 15.5 36 128 62 - 3 3 52 - 2 57 7 - 3 7 43 - 2 53 16 -0.36 - 89 0 0 - 3 24 33 19 36 18.7 37 128 61 - 3 27 55 - 3 21 11 - 3 31 45 - 3 17 21 -0.36 - 88 0 0 - 3 48 3 19 36 22.0 38 128 60 - 3 51 24 - 3 44 41 - 3 55 13 - 3 40 52 -0.36 - 87 0 0 - 4 10 57 19 36 25.3 39 128 59 - 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26 0 0 - 8 31 37 19 40 49.8 62 211 -1 - 8 34 50 - 8 28 24 - 8 38 30 - 8 24 43 -0.37 - 25 0 0 - 8 17 8 19 40 54.4 62 213 -2 - 8 20 22 - 8 13 54 - 8 24 2 - 8 10 14 -0.37 - 24 0 0 - 8 2 3 19 40 58.9 61 214 -4 - 8 5 17 - 7 58 49 - 8 8 58 - 7 55 7 -0.37 - 23 0 0 - 7 46 21 19 41 3.4 60 215 -5 - 7 49 36 - 7 43 6 - 7 53 17 - 7 39 25 -0.37 - 22 0 0 - 7 30 3 19 41 7.8 59 216 -6 - 7 33 18 - 7 26 48 - 7 37 0 - 7 23 5 -0.37 - 21 0 0 - 7 13 8 19 41 12.3 58 217 -7 - 7 16 24 - 7 9 53 - 7 20 7 - 7 6 10 -0.37 - 20 0 0 - 6 55 37 19 41 16.7 58 218 -8 - 6 58 53 - 6 52 21 - 7 2 37 - 6 48 37 -0.37 - 19 0 0 - 6 37 30 19 41 21.1 57 219 -9 - 6 40 47 - 6 34 13 - 6 44 31 - 6 30 29 -0.37 - 18 0 0 - 6 18 46 19 41 25.4 56 219 -10 - 6 22 4 - 6 15 29 - 6 25 48 - 6 11 44 -0.37 - 17 0 0 - 5 59 27 19 41 29.8 55 220 -11 - 6 2 44 - 5 56 9 - 6 6 29 - 5 52 23 -0.37 - 16 0 0 - 5 39 31 19 41 34.0 54 221 -12 - 5 42 49 - 5 36 12 - 5 46 35 - 5 32 26 -0.37 - 15 0 0 - 5 18 59 19 41 38.3 53 221 -13 - 5 22 18 - 5 15 40 - 5 26 4 - 5 11 53 -0.37 - 14 0 0 - 4 57 51 19 41 42.5 52 222 -14 - 5 1 11 - 4 54 31 - 5 4 58 - 4 50 44 -0.37 - 13 0 0 - 4 36 8 19 41 46.7 51 223 -15 - 4 39 28 - 4 32 47 - 4 43 16 - 4 28 59 -0.37 - 12 0 0 - 4 13 49 19 41 50.8 50 223 -16 - 4 17 10 - 4 10 28 - 4 20 58 - 4 6 39 -0.37 - 11 0 0 - 3 50 55 19 41 54.9 49 224 -17 - 3 54 16 - 3 47 33 - 3 58 5 - 3 43 44 -0.37 - 10 0 0 - 3 27 25 19 41 59.0 48 224 -18 - 3 30 47 - 3 24 3 - 3 34 37 - 3 20 13 -0.37 - 9 0 0 - 3 3 21 19 42 3.0 47 224 -19 - 3 6 44 - 2 59 58 - 3 10 34 - 2 56 7 -0.37 - 8 0 0 - 2 38 42 19 42 6.9 46 225 -20 - 2 42 5 - 2 35 19 - 2 45 57 - 2 31 27 -0.37 - 7 0 0 - 2 13 29 19 42 10.8 45 225 -21 - 2 16 53 - 2 10 5 - 2 20 45 - 2 6 12 -0.37 - 6 0 0 - 1 47 42 19 42 14.7 44 226 -23 - 1 51 6 - 1 44 17 - 1 54 59 - 1 40 24 -0.37 - 5 0 0 - 1 21 21 19 42 18.5 43 226 -24 - 1 24 46 - 1 17 55 - 1 28 40 - 1 14 1 -0.37 - 4 0 0 - 0 54 27 19 42 22.2 42 226 -25 - 0 57 53 - 0 51 0 - 1 1 47 - 0 47 6 -0.37 - 3 0 0 - 0 26 59 19 42 25.8 41 227 -26 - 0 30 26 - 0 23 33 - 0 34 21 - 0 19 37 -0.37 - 2 0 0 0 1 0 19 42 29.4 40 227 -27 - 0 2 27 0 4 28 - 0 6 23 0 8 24 -0.37 - 1 0 0 0 29 32 19 42 33.0 39 227 -28 0 26 4 0 33 0 0 22 7 0 36 57 -0.37 0 0 0 0 58 35 19 42 36.4 38 227 -29 0 55 6 1 2 4 0 51 9 1 6 2 -0.37 1 0 0 1 28 9 19 42 39.8 37 228 -30 1 24 40 1 31 39 1 20 41 1 35 38 -0.37 2 0 0 1 58 14 19 42 43.1 36 228 -31 1 54 44 2 1 44 1 50 45 2 5 44 -0.37 3 0 0 2 28 49 19 42 46.4 35 228 -32 2 25 18 2 32 20 2 21 18 2 36 20 -0.37 4 0 0 2 59 53 19 42 49.5 34 228 -33 2 56 21 3 3 24 2 52 20 3 7 25 -0.37 5 0 0 3 31 25 19 42 52.6 33 229 -34 3 27 53 3 34 57 3 23 51 3 38 59 -0.37 6 0 0 4 3 25 19 42 55.6 31 229 -35 3 59 52 4 6 58 3 55 50 4 11 1 -0.37 7 0 0 4 35 52 19 42 58.5 30 229 -37 4 32 19 4 39 26 4 28 15 4 43 30 -0.37 8 0 0 5 8 46 19 43 1.3 29 229 -38 5 5 12 5 12 20 5 1 8 5 16 25 -0.37 9 0 0 5 42 5 19 43 4.0 28 230 -39 5 38 30 5 45 40 5 34 25 5 49 45 -0.37 10 0 0 6 15 49 19 43 6.6 27 230 -40 6 12 13 6 19 25 6 8 8 6 23 30 -0.37 11 0 0 6 49 56 19 43 9.1 26 230 -41 6 46 20 6 53 33 6 42 14 6 57 39 -0.37 12 0 0 7 24 27 19 43 11.6 25 230 -42 7 20 50 7 28 4 7 16 43 7 32 11 -0.37 13 0 0 7 59 19 19 43 13.9 24 231 -43 7 55 41 8 2 57 7 51 34 8 7 5 -0.37 14 0 0 8 34 32 19 43 16.1 22 231 -44 8 30 54 8 38 10 8 26 46 8 42 19 -0.37 15 0 0 9 10 5 19 43 18.3 21 231 -45 9 6 26 9 13 44 9 2 17 9 17 53 -0.37 16 0 0 9 45 57 19 43 20.3 20 231 -46 9 42 17 9 49 36 9 38 8 9 53 46 -0.37 17 0 0 10 22 6 19 43 22.2 19 231 -47 10 18 26 10 25 46 10 14 16 10 29 57 -0.37 18 0 0 10 58 32 19 43 24.0 18 232 -48 10 54 51 11 2 12 10 50 40 11 6 24 -0.37 19 0 0 11 35 13 19 43 25.7 17 232 -49 11 31 32 11 38 54 11 27 20 11 43 6 -0.37 20 0 0 12 12 8 19 43 27.3 15 232 -50 12 8 27 12 15 50 12 4 15 12 20 3 -0.37 21 0 0 12 49 17 19 43 28.7 14 232 -51 12 45 35 12 52 59 12 41 22 12 57 12 -0.37 22 0 0 13 26 37 19 43 30.1 13 233 -52 13 22 54 13 30 19 13 18 41 13 34 33 -0.37 23 0 0 14 4 7 19 43 31.3 12 233 -53 14 0 24 14 7 50 13 56 11 14 12 4 -0.37 24 0 0 14 41 47 19 43 32.5 11 233 -54 14 38 4 14 45 30 14 33 49 14 49 45 -0.37 25 0 0 15 19 35 19 43 33.5 10 233 -55 15 15 51 15 23 18 15 11 36 15 27 34 -0.37 26 0 0 15 57 29 19 43 34.4 9 234 -55 15 53 45 16 1 13 15 49 30 16 5 29 -0.37 27 0 0 16 35 28 19 43 35.2 7 234 -56 16 31 44 16 39 13 16 27 28 16 43 29 -0.37 28 0 0 17 13 32 19 43 35.8 6 234 -57 17 9 47 17 17 17 17 5 31 17 21 33 -0.37 29 0 0 17 51 38 19 43 36.4 5 235 -58 17 47 53 17 55 23 17 43 37 17 59 40 -0.37 30 0 0 18 29 46 19 43 36.8 4 235 -59 18 26 0 18 33 31 18 21 44 18 37 48 -0.37 31 0 0 19 7 53 19 43 37.2 3 235 -59 19 4 7 19 11 39 18 59 51 19 15 56 -0.37 32 0 0 19 45 59 19 43 37.4 2 236 -60 19 42 13 19 49 45 19 37 56 19 54 2 -0.37 33 0 0 20 24 3 19 43 37.5 1 236 -61 20 20 17 20 27 49 20 15 59 20 32 6 -0.39 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 7393-01562-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 24 34.4297 DE: -31 30 02.476 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 24 34.4295 DE: -31 30 02.476 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.7 * B mag [mag]: 10.4 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (10142) Sakka asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.005 distance from Earth [AU]: 2.66890 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 date of fit: 2023 Apr 25 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): 0.010", 0.002", 100.375° remarks: * orbital elements for (10142)Sakka : Mean anomaly = 298.3535121031 deg Arg. of pericenter = 316.5203232358 deg Long. of node = 71.6095981072 deg Inclination = 11.7469441317 deg Eccentricity = 0.2514600857 Semimajor axis = 2.7480158280 AU Perihelion dist = 2.0569995323 AU Mag: H = 12.11, G = 0.15 Epoch of elements : MJD 60597.81908276 TDT (2024 Oct 14.8191) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr25,0.45,2024,10,14,19.657992,-0.023515,0.349176,13.521183,0.911593,0.005447,0.000020,0.000000,0.000000 -42.1675,-31.4890,-118.41,-8.55,False TYC 7393-01562-1,18.40956384,-31.5006877,10.42,9.69,9.30,0.1,0,,18.43616362,-31.4889682,7.66,7.61,0,0,0 10142,Sakka,17.35,10.834,2.6689,0,0,3.483,3.01,,1.0,0 0,298.1763,2024,10,14,316.5203,71.6096,11.7469,0.25146,2.74802,2.05700,12.11,5.0,0.15 1.570,0.0103,0.0020,100,0.0032,Known errors,0.84,0,-1,-1 20241014_1562-1,60140.63 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:13 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org