IOTA/IOTA-ES occultation update for (3652) Soros / TYC 6152-00977-1 event on 2024 Jan 11, 12:33 UT Visible from Summary ------- On 2024 Jan 11 UT, the 13.28 km diameter asteroid (3652) Soros will occult a 11.0 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 7.49 mag to 18.52 mag (the magnitude of the asteroid) for at most 0.470 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 Jan 11, 12:29 - 2024 Jan 11, 12:37 * geocentric midpoint of event [JD]: 2460321.02316312 * magnitude of target star: 11.03 * magnitude drop [mag]: 7.49 * estimated maximum duration [s]: 0.470 * Moon: 0 % sunlit, 71° distance * Sun: 71° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.27 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.002", 108°) * approx speed of asteroid's shadow [km/s]: 28.1214 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6152-00977-1 by 3652 Soros on 2024 Jan 11 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 -160 0 0 32 40 56 12 29 42.8 1 110 -65 32 36 59 32 44 53 32 34 51 32 47 2 .... -159 0 0 32 22 44 12 29 42.9 1 110 -64 32 18 46 32 26 42 32 16 38 32 28 50 -0.11 -158 0 0 32 4 11 12 29 43.0 2 111 -63 32 0 13 32 8 9 31 58 4 32 10 18 -0.17 -157 0 0 31 45 16 12 29 43.2 3 111 -63 31 41 18 31 49 14 31 39 9 31 51 24 -0.19 -156 0 0 31 26 0 12 29 43.4 4 112 -62 31 22 2 31 29 59 31 19 52 31 32 9 -0.21 -155 0 0 31 6 24 12 29 43.7 5 112 -61 31 2 25 31 10 23 31 0 15 31 12 33 -0.22 -154 0 0 30 46 26 12 29 44.1 6 113 -60 30 42 27 30 50 26 30 40 17 30 52 36 -0.23 -153 0 0 30 26 9 12 29 44.5 7 113 -60 30 22 8 30 30 9 30 19 58 30 32 19 -0.23 -152 0 0 30 5 30 12 29 45.0 8 114 -59 30 1 30 30 9 31 29 59 20 30 11 41 -0.24 -151 0 0 29 44 32 12 29 45.6 9 114 -58 29 40 31 29 48 33 29 38 20 29 50 43 -0.24 -150 0 0 29 23 13 12 29 46.2 10 115 -57 29 19 12 29 27 15 29 17 1 29 29 26 -0.24 -149 0 0 29 1 35 12 29 46.9 11 115 -56 28 57 33 29 5 37 28 55 22 29 7 48 -0.24 -148 0 0 28 39 37 12 29 47.6 12 116 -55 28 35 35 28 43 40 28 33 24 28 45 51 -0.25 -147 0 0 28 17 20 12 29 48.4 13 116 -55 28 13 18 28 21 23 28 11 7 28 23 35 -0.25 -146 0 0 27 54 45 12 29 49.3 14 117 -54 27 50 42 27 58 48 27 48 30 28 0 59 -0.25 -145 0 0 27 31 50 12 29 50.3 15 117 -53 27 27 47 27 35 54 27 25 35 27 38 5 -0.25 -144 0 0 27 8 37 12 29 51.3 16 118 -52 27 4 34 27 12 41 27 2 22 27 14 53 -0.25 -143 0 0 26 45 7 12 29 52.4 16 118 -51 26 41 2 26 49 11 26 38 50 26 51 23 -0.25 -142 0 0 26 21 18 12 29 53.6 17 119 -50 26 17 14 26 25 23 26 15 1 26 27 35 -0.25 -141 0 0 25 57 13 12 29 54.9 18 119 -49 25 53 8 26 1 18 25 50 55 26 3 30 -0.25 -140 0 0 25 32 50 12 29 56.2 19 120 -48 25 28 45 25 36 56 25 26 32 25 39 8 -0.25 -139 0 0 25 8 12 12 29 57.6 20 120 -47 25 4 6 25 12 17 25 1 53 25 14 30 -0.26 -138 0 0 24 43 17 12 29 59.0 21 121 -46 24 39 11 24 47 23 24 36 58 24 49 36 -0.26 -137 0 0 24 18 7 12 30 0.6 22 121 -45 24 14 1 24 22 13 24 11 47 24 24 26 -0.26 -136 0 0 23 52 41 12 30 2.2 23 121 -44 23 48 35 23 56 48 23 46 22 23 59 1 -0.26 -135 0 0 23 27 2 12 30 3.9 24 122 -43 23 22 55 23 31 9 23 20 42 23 33 22 -0.26 -134 0 0 23 1 8 12 30 5.6 25 122 -43 22 57 1 23 5 15 22 54 48 23 7 29 -0.26 -133 0 0 22 35 1 12 30 7.5 26 123 -42 22 30 54 22 39 8 22 28 40 22 41 22 -0.26 -132 0 0 22 8 41 12 30 9.4 27 123 -41 22 4 34 22 12 48 22 2 20 22 15 2 -0.26 -131 0 0 21 42 9 12 30 11.4 29 124 -40 21 38 1 21 46 16 21 35 47 21 48 30 -0.26 -130 0 0 21 15 25 12 30 13.5 30 124 -39 21 11 17 21 19 32 21 9 3 21 21 47 -0.26 -129 0 0 20 48 30 12 30 15.6 31 125 -38 20 44 22 20 52 38 20 42 7 20 54 52 -0.26 -128 0 0 20 21 24 12 30 17.8 32 125 -36 20 17 16 20 25 32 20 15 2 20 27 47 -0.26 -127 0 0 19 54 9 12 30 20.1 33 126 -35 19 50 0 19 58 17 19 47 46 20 0 31 -0.26 -126 0 0 19 26 44 12 30 22.5 34 126 -34 19 22 36 19 30 52 19 20 21 19 33 7 -0.26 -125 0 0 18 59 11 12 30 24.9 35 127 -33 18 55 2 19 3 19 18 52 48 19 5 34 -0.26 -124 0 0 18 31 30 12 30 27.4 36 127 -32 18 27 21 18 35 39 18 25 7 18 37 53 -0.26 -123 0 0 18 3 42 12 30 30.0 37 127 -31 17 59 33 18 7 51 17 57 19 18 10 6 -0.26 -122 0 0 17 35 48 12 30 32.7 38 128 -30 17 31 39 17 39 57 17 29 25 17 42 11 -0.26 -121 0 0 17 7 48 12 30 35.4 39 128 -29 17 3 39 17 11 57 17 1 25 17 14 12 -0.26 -120 0 0 16 39 43 12 30 38.2 40 129 -28 16 35 34 16 43 52 16 33 20 16 46 7 -0.26 -119 0 0 16 11 34 12 30 41.1 41 129 -27 16 7 26 16 15 43 16 5 11 16 17 58 -0.26 -118 0 0 15 43 22 12 30 44.0 42 130 -26 15 39 13 15 47 31 15 36 59 15 49 46 -0.26 -117 0 0 15 15 7 12 30 47.0 43 130 -25 15 10 59 15 19 16 15 8 44 15 21 31 -0.26 -116 0 0 14 46 51 12 30 50.1 44 131 -24 14 42 42 14 50 59 14 40 27 14 53 14 -0.26 -115 0 0 14 18 33 12 30 53.2 45 132 -23 14 14 24 14 22 42 14 12 10 14 24 56 -0.26 -114 0 0 13 50 15 12 30 56.4 46 132 -22 13 46 7 13 54 24 13 43 52 13 56 38 -0.26 -113 0 0 13 21 58 12 30 59.7 47 133 -21 13 17 49 13 26 6 13 15 35 13 28 21 -0.27 -112 0 0 12 53 42 12 31 3.0 48 133 -20 12 49 33 12 57 50 12 47 19 13 0 5 -0.27 -111 0 0 12 25 28 12 31 6.4 49 134 -18 12 21 20 12 29 36 12 19 5 12 31 51 -0.27 -110 0 0 11 57 17 12 31 9.8 50 135 -17 11 53 9 12 1 25 11 50 55 12 3 39 -0.27 -109 0 0 11 29 10 12 31 13.3 51 135 -16 11 25 2 11 33 18 11 22 48 11 35 32 -0.27 -108 0 0 11 1 7 12 31 16.8 52 136 -15 10 56 59 11 5 15 10 54 45 11 7 29 -0.27 -107 0 0 10 33 10 12 31 20.4 53 137 -14 10 29 2 10 37 17 10 26 48 10 39 31 -0.27 -106 0 0 10 5 18 12 31 24.1 55 137 -13 10 1 11 10 9 26 9 58 57 10 11 39 -0.27 -105 0 0 9 37 34 12 31 27.8 56 138 -12 9 33 27 9 41 41 9 31 13 9 43 55 -0.27 -104 0 0 9 9 57 12 31 31.5 57 139 -11 9 5 50 9 14 4 9 3 37 9 16 17 -0.27 -103 0 0 8 42 29 12 31 35.3 58 140 -10 8 38 22 8 46 35 8 36 9 8 48 49 -0.27 -102 0 0 8 15 9 12 31 39.2 59 141 -9 8 11 3 8 19 15 8 8 50 8 21 29 -0.27 -101 0 0 7 48 0 12 31 43.1 59 142 -7 7 43 54 7 52 6 7 41 41 7 54 19 -0.27 -100 0 0 7 21 1 12 31 47.0 60 143 -6 7 16 55 7 25 7 7 14 43 7 27 20 -0.27 - 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8 3 44 - 7 56 12 - 8 5 47 - 7 54 9 -0.28 - 12 0 0 - 7 51 2 12 36 45.5 20 256 75 - 7 54 48 - 7 47 15 - 7 56 51 - 7 45 12 -0.28 - 11 0 0 - 7 41 39 12 36 46.9 19 255 75 - 7 45 26 - 7 37 52 - 7 47 28 - 7 35 49 -0.28 - 10 0 0 - 7 31 49 12 36 48.3 18 255 75 - 7 35 36 - 7 28 2 - 7 37 39 - 7 25 59 -0.28 - 9 0 0 - 7 21 34 12 36 49.5 17 255 75 - 7 25 21 - 7 17 46 - 7 27 24 - 7 15 43 -0.28 - 8 0 0 - 7 10 51 12 36 50.7 16 255 75 - 7 14 39 - 7 7 3 - 7 16 42 - 7 5 0 -0.28 - 7 0 0 - 6 59 42 12 36 51.8 15 255 75 - 7 3 30 - 6 55 55 - 7 5 34 - 6 53 51 -0.28 - 6 0 0 - 6 48 8 12 36 52.9 14 255 75 - 6 51 56 - 6 44 19 - 6 53 59 - 6 42 16 -0.28 - 5 0 0 - 6 36 7 12 36 53.9 13 255 75 - 6 39 55 - 6 32 18 - 6 41 59 - 6 30 14 -0.28 - 4 0 0 - 6 23 40 12 36 54.8 12 255 74 - 6 27 29 - 6 19 51 - 6 29 32 - 6 17 47 -0.28 - 3 0 0 - 6 10 47 12 36 55.6 11 255 74 - 6 14 36 - 6 6 58 - 6 16 40 - 6 4 54 -0.28 - 2 0 0 - 5 57 29 12 36 56.4 10 255 73 - 6 1 18 - 5 53 39 - 6 3 22 - 5 51 35 -0.28 - 1 0 0 - 5 43 45 12 36 57.1 9 254 73 - 5 47 34 - 5 39 55 - 5 49 39 - 5 37 50 -0.28 - 0 0 0 - 5 29 35 12 36 57.7 8 254 72 - 5 33 25 - 5 25 45 - 5 35 30 - 5 23 40 -0.28 1 0 0 - 5 15 1 12 36 58.3 7 254 72 - 5 18 51 - 5 11 10 - 5 20 56 - 5 9 5 -0.28 2 0 0 - 5 0 1 12 36 58.8 6 254 71 - 5 3 52 - 4 56 10 - 5 5 57 - 4 54 5 -0.28 3 0 0 - 4 44 37 12 36 59.2 5 254 70 - 4 48 28 - 4 40 45 - 4 50 33 - 4 38 40 -0.28 4 0 0 - 4 28 48 12 36 59.5 4 254 69 - 4 32 39 - 4 24 56 - 4 34 45 - 4 22 50 -0.28 5 0 0 - 4 12 34 12 36 59.7 3 254 69 - 4 16 26 - 4 8 42 - 4 18 32 - 4 6 36 -0.29 6 0 0 - 3 55 56 12 36 59.9 2 254 68 - 3 59 49 - 3 52 4 - 4 1 54 - 3 49 58 -0.29 7 0 0 - 3 38 54 12 37 0.0 1 254 67 - 3 42 47 - 3 35 1 - 3 44 53 - 3 32 55 -0.32 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 6152-00977-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 24 54.8421 DE: -16 04 39.526 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 24 54.8423 DE: -16 04 39.526 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.0 * B mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3652) Soros asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.007 distance from Earth [AU]: 2.57730 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 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): 0.012", 0.002", 107.876° remarks: * orbital elements for (3652)Soros : Mean anomaly = 270.8203548845 deg Arg. of pericenter = 62.2236585630 deg Long. of node = 245.3209242263 deg Inclination = 2.2713834419 deg Eccentricity = 0.1926026974 Semimajor axis = 2.3665570333 AU Perihelion dist = 1.9107517651 AU Mag: H = 13.45, G = 0.15 Epoch of elements : MJD 60320.52316325 TDT (2024 Jan 11.5232) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr24,0.47,2024,1,11,12.555915,0.085556,0.250281,15.018424,-5.136385,-0.005276,0.001728,-0.000001,0.000000 -82.3065,-16.1855,-6.40,-21.83,False TYC 6152-00977-1,14.41523390,-16.0776458,11.51,11.03,10.77,0.0,0,,14.43704593,-16.1854750,7.49,7.30,0,0,0 3652,Soros,18.52,13.280,2.5773,0,0,3.558,-17.53,,1.0,0 0,270.6787,2024,1,11,62.2237,245.3209,2.2714,0.19260,2.36656,1.91075,13.45,5.0,0.15 1.271,0.0123,0.0019,108,0.0019,Known errors,1.27,0,-1,-1 20240111_0977-1,60137.01 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:15 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org