IOTA/IOTA-ES occultation update for (454) Mathesis / TYC 7359-02006-1 event on 2024 Jul 17, 11:27 UT Visible from Summary ------- On 2024 Jul 17 UT, the 81.8356967558509 km diameter asteroid (454) Mathesis will occult a 10.3 mag star in the constellation Scorpius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.94 mag to 13.14 mag (the magnitude of the asteroid) for at most 22.320 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: 100 * date and approx. time of event: 2024 Jul 17, 10:59 - 2024 Jul 17, 11:55 * geocentric midpoint of event [JD]: 2460508.97755117 * magnitude of target star: 10.28 * magnitude drop [mag]: 2.94 * estimated maximum duration [s]: 22.320 * Moon: 82 % sunlit, 12° distance * Sun: 140° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 86 * 1 sigma uncertainty interval [path widths]: +/- 0.05 * 1 sigma uncertainty interval [seconds]: +/- 4.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.003", 102°) * approx speed of asteroid's shadow [km/s]: 3.6828 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7359-02006-1 by 454 Mathesis on 2024 Jul 17 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 72 0 0 32 8 4 11 55 14.7 0 127 28 .. .. .. 31 38 8 .. .. .. 31 34 53 .... 73 0 0 31 28 36 11 55 14.4 1 128 27 31 58 42 30 58 36 32 1 59 30 55 21 -0.01 74 0 0 30 48 41 11 55 13.5 2 129 26 31 18 50 30 18 38 31 22 7 30 15 23 -0.19 75 0 0 30 8 21 11 55 11.9 3 129 25 30 38 33 29 38 16 30 41 50 29 35 0 -0.25 76 0 0 29 27 37 11 55 9.7 4 130 24 29 57 51 28 57 30 30 1 9 28 54 14 -0.28 77 0 0 28 46 31 11 55 6.7 5 130 23 29 16 47 28 16 22 29 20 4 28 13 6 -0.30 78 0 0 28 5 3 11 55 3.1 7 130 22 28 35 21 27 34 53 28 38 39 27 31 37 -0.32 79 0 0 27 23 17 11 54 58.8 8 131 21 27 53 36 26 53 5 27 56 53 26 49 49 -0.33 80 0 0 26 41 12 11 54 53.8 9 131 20 27 11 32 26 11 0 27 14 49 26 7 44 -0.33 81 0 0 25 58 51 11 54 48.1 10 132 19 26 29 11 25 28 39 26 32 29 25 25 22 -0.34 82 0 0 25 16 15 11 54 41.6 11 132 18 25 46 35 24 46 3 25 49 53 24 42 47 -0.34 83 0 0 24 33 26 11 54 34.5 12 133 17 25 3 45 24 3 15 25 7 3 23 59 58 -0.35 84 0 0 23 50 26 11 54 26.6 13 133 16 24 20 44 23 20 15 24 24 1 23 16 59 -0.35 85 0 0 23 7 15 11 54 18.0 14 134 15 23 37 32 22 37 6 23 40 50 22 33 50 -0.35 86 0 0 22 23 57 11 54 8.7 16 134 14 22 54 12 21 53 49 22 57 29 21 50 33 -0.35 87 0 0 21 40 32 11 53 58.6 17 134 13 22 10 45 21 10 26 22 14 2 21 7 10 -0.35 88 0 0 20 57 1 11 53 47.9 18 135 12 21 27 12 20 26 58 21 30 29 20 23 43 -0.36 89 0 0 20 13 28 11 53 36.5 19 135 11 20 43 36 19 43 27 20 46 53 19 40 13 -0.36 90 0 0 19 29 53 11 53 24.3 20 135 10 19 59 58 18 59 55 20 3 14 18 56 41 -0.36 91 0 0 18 46 18 11 53 11.5 21 136 9 19 16 19 18 16 23 19 19 35 18 13 9 -0.36 92 0 0 18 2 44 11 52 57.9 22 136 8 18 32 42 17 32 53 18 35 57 17 29 39 -0.36 93 0 0 17 19 13 11 52 43.7 24 136 6 17 49 7 16 49 26 17 52 22 16 46 13 -0.36 94 0 0 16 35 47 11 52 28.9 25 137 5 17 5 37 16 6 4 17 8 51 16 2 51 -0.36 95 0 0 15 52 26 11 52 13.4 26 137 4 16 22 12 15 22 48 16 25 26 15 19 36 -0.36 96 0 0 15 9 14 11 51 57.2 27 137 3 15 38 54 14 39 40 15 42 8 14 36 28 -0.36 97 0 0 14 26 10 11 51 40.4 28 138 2 14 55 45 13 56 41 14 58 59 13 53 29 -0.36 98 0 0 13 43 16 11 51 23.0 29 138 1 14 12 47 13 13 52 14 15 59 13 10 41 -0.36 99 0 0 13 0 33 11 51 5.0 30 138 0 13 29 59 12 31 15 13 33 11 12 28 4 -0.36 100 0 0 12 18 4 11 50 46.5 32 139 -1 12 47 24 11 48 51 12 50 36 11 45 41 -0.36 101 0 0 11 35 48 11 50 27.3 33 139 -2 12 5 3 11 6 41 12 8 14 11 3 31 -0.36 102 0 0 10 53 48 11 50 7.6 34 139 -3 11 22 57 10 24 46 11 26 7 10 21 37 -0.36 103 0 0 10 12 4 11 49 47.4 35 140 -5 10 41 7 9 43 8 10 44 17 9 40 0 -0.36 104 0 0 9 30 38 11 49 26.7 36 140 -6 9 59 35 9 1 47 10 2 44 8 58 40 -0.36 105 0 0 8 49 30 11 49 5.4 37 140 -7 9 18 21 8 20 46 9 21 29 8 17 39 -0.36 106 0 0 8 8 42 11 48 43.7 38 141 -8 8 37 26 7 40 3 8 40 34 7 36 57 -0.36 107 0 0 7 28 14 11 48 21.5 39 141 -9 7 56 52 6 59 41 7 59 59 6 56 36 -0.35 108 0 0 6 48 7 11 47 58.9 40 141 -10 7 16 39 6 19 41 7 19 45 6 16 36 -0.35 109 0 0 6 8 22 11 47 35.9 41 142 -11 6 36 48 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49 20 11 15 26.9 59 242 -80 -19 26 0 -20 12 36 -19 23 28 -20 15 7 -0.31 -177 0 0 -19 51 36 11 15 4.0 58 242 -81 -19 28 17 -20 14 52 -19 25 45 -20 17 23 -0.31 -176 0 0 -19 53 22 11 14 41.2 57 243 -81 -19 30 3 -20 16 38 -19 27 31 -20 19 9 -0.31 -175 0 0 -19 54 37 11 14 18.6 57 243 -82 -19 31 18 -20 17 53 -19 28 46 -20 20 24 -0.31 -174 0 0 -19 55 21 11 13 56.2 56 243 -83 -19 32 3 -20 18 37 -19 29 31 -20 21 8 -0.31 -173 0 0 -19 55 35 11 13 33.9 55 244 -84 -19 32 16 -20 18 51 -19 29 44 -20 21 22 -0.31 -172 0 0 -19 55 18 11 13 11.9 54 244 -85 -19 31 59 -20 18 34 -19 29 27 -20 21 6 -0.31 -171 0 0 -19 54 30 11 12 50.0 54 244 -85 -19 31 11 -20 17 47 -19 28 39 -20 20 18 -0.31 -170 0 0 -19 53 12 11 12 28.3 53 244 -86 -19 29 52 -20 16 29 -19 27 19 -20 19 0 -0.31 -169 0 0 -19 51 22 11 12 6.9 52 244 -87 -19 28 1 -20 14 40 -19 25 29 -20 17 11 -0.31 -168 0 0 -19 49 1 11 11 45.6 51 245 -87 -19 25 39 -20 12 20 -19 23 7 -20 14 51 -0.31 -167 0 0 -19 46 9 11 11 24.5 50 245 -88 -19 22 46 -20 9 28 -19 20 14 -20 12 0 -0.31 -166 0 0 -19 42 45 11 11 3.6 50 245 -88 -19 19 21 -20 6 6 -19 16 49 -20 8 37 -0.31 -165 0 0 -19 38 50 11 10 42.9 49 245 -88 -19 15 25 -20 2 12 -19 12 52 -20 4 44 -0.32 -164 0 0 -19 34 23 11 10 22.5 48 245 -87 -19 10 57 -19 57 46 -19 8 24 -20 0 18 -0.32 -163 0 0 -19 29 24 11 10 2.2 47 245 -86 -19 5 57 -19 52 49 -19 3 24 -19 55 21 -0.32 -162 0 0 -19 23 54 11 9 42.2 46 245 -86 -19 0 24 -19 47 20 -18 57 51 -19 49 53 -0.32 -161 0 0 -19 17 51 11 9 22.4 46 245 -85 -18 54 20 -19 41 19 -18 51 46 -19 43 52 -0.32 -160 0 0 -19 11 16 11 9 2.8 45 245 -84 -18 47 43 -19 34 46 -18 45 9 -19 37 19 -0.32 -159 0 0 -19 4 8 11 8 43.4 44 245 -83 -18 40 33 -19 27 40 -18 37 59 -19 30 14 -0.32 -158 0 0 -18 56 28 11 8 24.3 43 245 -82 -18 32 51 -19 20 2 -18 30 17 -19 22 36 -0.32 -157 0 0 -18 48 15 11 8 5.4 42 245 -82 -18 24 35 -19 11 52 -18 22 1 -19 14 25 -0.32 -156 0 0 -18 39 29 11 7 46.7 41 245 -81 -18 15 46 -19 3 8 -18 13 12 -19 5 42 -0.32 -155 0 0 -18 30 9 11 7 28.3 41 244 -80 -18 6 24 -18 53 51 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54 -16 17 48 -15 26 15 -16 20 27 -0.34 -142 0 0 -15 36 27 11 3 53.8 29 243 -68 -15 11 53 -16 0 56 -15 9 13 -16 3 36 -0.34 -141 0 0 -15 18 53 11 3 39.5 28 243 -67 -14 54 14 -15 43 27 -14 51 34 -15 46 7 -0.34 -140 0 0 -15 0 41 11 3 25.5 27 242 -66 -14 35 58 -15 25 21 -14 33 17 -15 28 1 -0.34 -139 0 0 -14 41 52 11 3 11.9 26 242 -65 -14 17 3 -15 6 37 -14 14 22 -15 9 18 -0.34 -138 0 0 -14 22 25 11 2 58.6 25 242 -64 -13 57 30 -14 47 15 -13 54 48 -14 49 56 -0.35 -137 0 0 -14 2 18 11 2 45.8 24 242 -63 -13 37 19 -14 27 14 -13 34 36 -14 29 56 -0.35 -136 0 0 -13 41 33 11 2 33.3 23 242 -62 -13 16 28 -14 6 35 -13 13 44 -14 9 17 -0.35 -135 0 0 -13 20 9 11 2 21.3 22 242 -61 -12 54 58 -13 45 16 -12 52 13 -13 47 59 -0.35 -134 0 0 -12 58 5 11 2 9.6 21 241 -60 -12 32 47 -13 23 18 -12 30 3 -13 26 2 -0.35 -133 0 0 -12 35 21 11 1 58.4 20 241 -59 -12 9 57 -13 0 40 -12 7 12 -13 3 25 -0.35 -132 0 0 -12 11 56 11 1 47.7 19 241 -58 -11 46 26 -12 37 22 -11 43 40 -12 40 7 -0.36 -131 0 0 -11 47 51 11 1 37.3 18 241 -57 -11 22 15 -12 13 24 -11 19 28 -12 16 10 -0.36 -130 0 0 -11 23 5 11 1 27.5 17 241 -56 -10 57 22 -11 48 44 -10 54 34 -11 51 31 -0.36 -129 0 0 -10 57 38 11 1 18.1 16 241 -55 -10 31 47 -11 23 24 -10 28 59 -11 26 11 -0.36 -128 0 0 -10 31 29 11 1 9.3 15 240 -54 -10 5 31 -10 57 22 -10 2 42 -11 0 10 -0.36 -127 0 0 -10 4 38 11 1 0.9 14 240 -53 - 9 38 33 -10 30 38 - 9 35 43 -10 33 27 -0.36 -126 0 0 - 9 37 4 11 0 53.1 13 240 -52 - 9 10 52 -10 3 12 - 9 8 1 -10 6 2 -0.36 -125 0 0 - 9 8 48 11 0 45.9 12 240 -51 - 8 42 28 - 9 35 4 - 8 39 36 - 9 37 54 -0.37 -124 0 0 - 8 39 49 11 0 39.1 11 240 -50 - 8 13 21 - 9 6 12 - 8 10 28 - 9 9 4 -0.37 -123 0 0 - 8 10 7 11 0 33.0 10 240 -49 - 7 43 31 - 8 36 38 - 7 40 37 - 8 39 31 -0.37 -122 0 0 - 7 39 42 11 0 27.5 9 240 -48 - 7 12 57 - 8 6 21 - 7 10 3 - 8 9 14 -0.37 -121 0 0 - 7 8 32 11 0 22.5 8 239 -47 - 6 41 40 - 7 35 20 - 6 38 44 - 7 38 14 -0.37 -120 0 0 - 6 36 39 11 0 18.2 6 239 -46 - 6 9 38 - 7 3 35 - 6 6 42 - 7 6 30 -0.38 -119 0 0 - 6 4 2 11 0 14.6 5 239 -44 - 5 36 52 - 6 31 7 - 5 33 55 - 6 34 3 -0.38 -118 0 0 - 5 30 41 11 0 11.6 4 239 -43 - 5 3 22 - 5 57 54 - 5 0 24 - 6 0 51 -0.38 -117 0 0 - 4 56 36 11 0 9.3 3 239 -42 - 4 29 8 - 5 23 58 - 4 26 9 - 5 26 56 -0.39 -116 0 0 - 4 21 46 11 0 7.7 2 239 -41 - 3 54 9 - 4 49 17 - 3 51 9 - 4 52 16 -0.40 -115 0 0 - 3 46 12 11 0 6.8 1 239 -40 - 3 18 26 - 4 13 52 - 3 15 24 - 4 16 52 -0.44 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: TYC 7359-02006-1 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 56 15.3979 DE: -31 03 10.925 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 56 15.3979 DE: -31 03 10.925 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.3 * B mag [mag]: 11.8 * Diameter [mas]: 0.30 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (454) Mathesis asteroid class: approx. diameter [km]: 82 approx. diameter ["]: 0.071 distance from Earth [AU]: 1.59620 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#127 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): 0.013", 0.003", 102.482° remarks: * orbital elements for (454)Mathesis : Mean anomaly = 51.2799063833 deg Arg. of pericenter = 177.1203816210 deg Long. of node = 32.1675331347 deg Inclination = 6.2922580086 deg Eccentricity = 0.1116206716 Semimajor axis = 2.6276594253 AU Perihelion dist = 2.3343583156 AU Mag: H = 9.32, G = 0.15 Epoch of elements : MJD 60508.47755204 TDT (2024 Jul 17.4776) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1272023Apr24,22.32,2024,7,17,11.461228,0.105708,0.274892,-1.940055,0.746334,0.003451,0.000243,0.000001,0.000000 146.7624,-31.0933,9.65,21.06,False TYC 7359-02006-1,16.93761054,-31.0530347,11.77,10.28,9.48,0.3,0,,16.96411355,-31.0932865,2.93,3.27,0,0,0 454,Mathesis,13.14,82.183,1.5962,0,0,-0.830,4.11,,5.2,0 0,51.1694,2024,7,17,177.1204,32.1675,6.2923,0.11162,2.62766,2.33436,9.32,5.0,0.15 1.054,0.0133,0.0033,102,0.0039,Known errors,0.74,0,-1,-1 20240717_2006-1,60140.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 04:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org