IOTA/IOTA-ES occultation update for (795) Fini / TYC 1772-00508-1 event on 2024 Oct 06, 13:12 UT Visible from Summary ------- On 2024 Oct 06 UT, the 78.3762852022681 km diameter asteroid (795) Fini will occult a 8.7 mag star in the constellation Aries for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.96 mag to 14.64 mag (the magnitude of the asteroid) for at most 6.340 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 Oct 06, 13:03 - 2024 Oct 06, 13:21 * geocentric midpoint of event [JD]: 2460590.05043083 * magnitude of target star: 8.68 * magnitude drop [mag]: 5.96 * estimated maximum duration [s]: 6.340 * Moon: 13 % sunlit, 169° distance * Sun: 147° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 79 * 1 sigma uncertainty interval [path widths]: +/- 0.21 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.003", 55°) * approx speed of asteroid's shadow [km/s]: 12.3894 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1772-00508-1 by 795 Fini on 2024 Oct 6 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 90 0 0 .. .. .... .. .. .. .. .. .. 9 23 10 .. .. .. 9 33 14 .. .. .. .... 91 0 0 9 27 2 13 21 8.5 1 65 -25 9 50 38 9 3 25 10 0 40 8 53 21 .... 92 0 0 9 54 9 13 21 8.2 2 65 -26 10 17 41 9 30 35 10 27 42 9 20 33 0.02 93 0 0 10 20 51 13 21 7.8 3 66 -27 10 44 20 9 57 21 10 54 19 9 47 20 0.06 94 0 0 10 47 7 13 21 7.2 4 66 -28 11 10 33 10 23 41 11 20 31 10 13 42 0.07 95 0 0 11 12 58 13 21 6.4 5 66 -29 11 36 20 10 49 35 11 46 17 10 39 38 0.08 96 0 0 11 38 23 13 21 5.4 6 66 -30 12 1 42 11 15 4 12 11 37 11 5 8 0.09 97 0 0 12 3 22 13 21 4.2 7 66 -31 12 26 37 11 40 6 12 36 31 11 30 11 0.10 98 0 0 12 27 54 13 21 2.9 8 67 -32 12 51 6 12 4 42 13 0 58 11 54 48 0.10 99 0 0 12 52 0 13 21 1.5 9 67 -33 13 15 8 12 28 51 13 24 58 12 18 59 0.10 100 0 0 13 15 38 13 20 59.8 11 67 -34 13 38 43 12 52 33 13 48 32 12 42 42 0.10 101 0 0 13 38 50 13 20 58.0 12 67 -35 14 1 51 13 15 47 14 11 38 13 5 58 0.10 102 0 0 14 1 33 13 20 56.0 13 67 -35 14 24 31 13 38 35 14 34 17 13 28 47 0.11 103 0 0 14 23 50 13 20 53.9 14 68 -36 14 46 44 14 0 54 14 56 29 13 51 8 0.11 104 0 0 14 45 38 13 20 51.7 15 68 -37 15 8 29 14 22 46 15 18 12 14 13 2 0.11 105 0 0 15 6 59 13 20 49.2 16 68 -38 15 29 47 14 44 11 15 39 28 14 34 27 0.11 106 0 0 15 27 52 13 20 46.7 17 68 -39 15 50 36 15 5 7 16 0 17 14 55 25 0.11 107 0 0 15 48 17 13 20 44.0 18 69 -40 16 10 58 15 25 35 16 20 37 15 15 55 0.11 108 0 0 16 8 14 13 20 41.1 19 69 -41 16 30 51 15 45 35 16 40 29 15 35 56 0.11 109 0 0 16 27 42 13 20 38.2 20 69 -42 16 50 17 16 5 6 16 59 53 15 55 29 0.11 110 0 0 16 46 42 13 20 35.0 21 69 -43 17 9 14 16 24 10 17 18 49 16 14 34 0.11 111 0 0 17 5 14 13 20 31.8 22 70 -44 17 27 43 16 42 45 17 37 16 16 33 10 0.11 112 0 0 17 23 18 13 20 28.4 23 70 -45 17 45 43 17 0 52 17 55 15 16 51 18 0.11 113 0 0 17 40 53 13 20 24.9 24 70 -45 18 3 15 17 18 30 18 12 47 17 8 58 0.11 114 0 0 17 58 0 13 20 21.3 25 71 -46 18 20 19 17 35 40 18 29 49 17 26 9 0.11 115 0 0 18 14 39 13 20 17.5 26 71 -47 18 36 55 17 52 21 18 46 24 17 42 51 0.11 116 0 0 18 30 49 13 20 13.7 27 71 -48 18 53 2 18 8 34 19 2 30 17 59 5 0.11 117 0 0 18 46 31 13 20 9.7 28 71 -49 19 8 41 18 24 19 19 18 8 18 14 51 0.11 118 0 0 19 1 44 13 20 5.6 29 72 -50 19 23 52 18 39 35 19 33 17 18 30 9 0.11 119 0 0 19 16 29 13 20 1.4 29 72 -51 19 38 35 18 54 23 19 47 59 18 44 57 0.11 120 0 0 19 30 46 13 19 57.1 30 72 -51 19 52 49 19 8 42 20 2 12 18 59 18 0.11 121 0 0 19 44 35 13 19 52.6 31 73 -52 20 6 35 19 22 33 20 15 57 19 13 10 0.11 122 0 0 19 57 55 13 19 48.1 32 73 -53 20 19 53 19 35 56 20 29 14 19 26 34 0.11 123 0 0 20 10 47 13 19 43.5 33 73 -54 20 32 43 19 48 50 20 42 3 19 39 30 0.11 124 0 0 20 23 11 13 19 38.7 34 73 -55 20 45 5 20 1 17 20 54 24 19 51 57 0.11 125 0 0 20 35 7 13 19 33.9 35 74 -55 20 56 59 20 13 15 21 6 17 20 3 56 0.11 126 0 0 20 46 36 13 19 29.0 36 74 -56 21 8 25 20 24 45 21 17 42 20 15 27 0.11 127 0 0 20 57 36 13 19 24.0 37 74 -57 21 19 23 20 35 47 21 28 39 20 26 30 0.11 128 0 0 21 8 8 13 19 18.8 38 75 -58 21 29 53 20 46 22 21 39 8 20 37 5 0.11 129 0 0 21 18 12 13 19 13.6 39 75 -58 21 39 55 20 56 28 21 49 10 20 47 12 0.11 130 0 0 21 27 49 13 19 8.3 40 75 -59 21 49 30 21 6 6 21 58 44 20 56 51 0.11 131 0 0 21 36 58 13 19 2.9 41 75 -60 21 58 37 21 15 17 22 7 50 21 6 3 0.11 132 0 0 21 45 39 13 18 57.5 42 76 -61 22 7 17 21 24 0 22 16 29 21 14 46 0.11 133 0 0 21 53 52 13 18 51.9 43 76 -61 22 15 29 21 32 15 22 24 41 21 23 2 0.11 134 0 0 22 1 38 13 18 46.3 43 76 -62 22 23 13 21 40 2 22 32 24 21 30 50 0.11 135 0 0 22 8 57 13 18 40.6 44 77 -63 22 30 31 21 47 22 22 39 41 21 38 11 0.11 136 0 0 22 15 48 13 18 34.8 45 77 -63 22 37 20 21 54 14 22 46 30 21 45 4 0.11 137 0 0 22 22 12 13 18 28.9 46 77 -64 22 43 43 22 0 39 22 52 52 21 51 29 0.11 138 0 0 22 28 8 13 18 22.9 47 77 -65 22 49 38 22 6 37 22 58 47 21 57 27 0.11 139 0 0 22 33 37 13 18 16.9 48 78 -65 22 55 6 22 12 7 23 4 15 22 2 58 0.11 140 0 0 22 38 39 13 18 10.8 49 78 -66 23 0 7 22 17 10 23 9 15 22 8 1 0.11 141 0 0 22 43 14 13 18 4.6 50 78 -67 23 4 41 22 21 46 23 13 49 22 12 37 0.11 142 0 0 22 47 21 13 17 58.3 51 78 -67 23 8 48 22 25 54 23 17 55 22 16 46 0.11 143 0 0 22 51 2 13 17 52.0 52 79 -68 23 12 28 22 29 35 23 21 35 22 20 28 0.11 144 0 0 22 54 16 13 17 45.6 52 79 -68 23 15 40 22 32 50 23 24 47 22 23 42 0.11 145 0 0 22 57 2 13 17 39.1 53 79 -69 23 18 27 22 35 37 23 27 33 22 26 29 0.11 146 0 0 22 59 22 13 17 32.6 54 79 -69 23 20 46 22 37 57 23 29 52 22 28 50 0.11 147 0 0 23 1 14 13 17 26.0 55 79 -70 23 22 38 22 39 50 23 31 44 22 30 43 0.11 148 0 0 23 2 40 13 17 19.3 56 80 -70 23 24 4 22 41 16 23 33 10 22 32 9 0.11 149 0 0 23 3 39 13 17 12.6 57 80 -71 23 25 2 22 42 15 23 34 8 22 33 8 0.11 150 0 0 23 4 11 13 17 5.8 58 80 -71 23 25 34 22 42 47 23 34 40 22 33 41 0.11 151 0 0 23 4 17 13 16 58.9 59 80 -71 23 25 40 22 42 53 23 34 46 22 33 46 0.11 152 0 0 23 3 55 13 16 52.0 59 80 -72 23 25 18 22 42 31 23 34 24 22 33 25 0.11 153 0 0 23 3 7 13 16 45.0 60 80 -72 23 24 30 22 41 43 23 33 36 22 32 36 0.11 154 0 0 23 1 52 13 16 37.9 61 80 -72 23 23 16 22 40 28 23 32 22 22 31 21 0.11 155 0 0 23 0 11 13 16 30.8 62 80 -72 23 21 34 22 38 46 23 30 40 22 29 39 0.11 156 0 0 22 58 2 13 16 23.6 63 80 -72 23 19 26 22 36 37 23 28 33 22 27 30 0.11 157 0 0 22 55 27 13 16 16.4 64 80 -73 23 16 52 22 34 2 23 25 58 22 24 54 0.11 158 0 0 22 52 25 13 16 9.1 65 80 -73 23 13 51 22 31 0 23 22 57 22 21 52 0.11 159 0 0 22 48 57 13 16 1.8 66 80 -73 23 10 23 22 27 30 23 19 30 22 18 22 0.11 160 0 0 22 45 2 13 15 54.4 66 80 -73 23 6 28 22 23 35 23 15 36 22 14 26 0.11 161 0 0 22 40 40 13 15 46.9 67 80 -73 23 2 7 22 19 12 23 11 15 22 10 3 0.11 162 0 0 22 35 52 13 15 39.4 68 80 -72 22 57 20 22 14 23 23 6 28 22 5 14 0.11 163 0 0 22 30 36 13 15 31.8 69 79 -72 22 52 5 22 9 6 23 1 14 21 59 57 0.11 164 0 0 22 24 55 13 15 24.2 70 79 -72 22 46 25 22 3 24 22 55 34 21 54 14 0.11 165 0 0 22 18 46 13 15 16.5 71 79 -72 22 40 17 21 57 14 22 49 27 21 48 3 0.11 166 0 0 22 12 11 13 15 8.8 72 78 -72 22 33 43 21 50 37 22 42 53 21 41 26 0.11 167 0 0 22 5 9 13 15 1.1 72 78 -71 22 26 42 21 43 34 22 35 53 21 34 23 0.11 168 0 0 21 57 40 13 14 53.2 73 77 -71 22 19 15 21 36 4 22 28 26 21 26 52 0.11 169 0 0 21 49 44 13 14 45.4 74 76 -71 22 11 21 21 28 7 22 20 33 21 18 54 0.11 170 0 0 21 41 22 13 14 37.4 75 75 -70 22 3 0 21 19 43 22 12 12 21 10 30 0.11 171 0 0 21 32 33 13 14 29.5 76 74 -70 21 54 13 21 10 53 22 3 26 21 1 39 0.11 172 0 0 21 23 17 13 14 21.4 77 73 -69 21 44 59 21 1 35 21 54 12 20 52 21 0.11 173 0 0 21 13 35 13 14 13.4 77 71 -69 21 35 18 20 51 51 21 44 32 20 42 35 0.11 174 0 0 21 3 25 13 14 5.3 78 70 -68 21 25 10 20 41 40 21 34 25 20 32 24 0.11 175 0 0 20 52 49 13 13 57.1 79 67 -68 21 14 36 20 31 2 21 23 52 20 21 45 0.11 176 0 0 20 41 46 13 13 49.0 80 65 -67 21 3 35 20 19 57 21 12 51 20 10 39 0.11 177 0 0 20 30 16 13 13 40.7 80 62 -67 20 52 7 20 8 25 21 1 24 19 59 6 0.11 178 0 0 20 18 20 13 13 32.5 81 58 -66 20 40 12 19 56 26 20 49 31 19 47 7 0.11 179 0 0 20 5 56 13 13 24.1 82 54 -65 20 27 51 19 44 0 20 37 10 19 34 40 0.11 -180 0 0 19 53 6 13 13 15.8 82 49 -65 20 15 3 19 31 8 20 24 23 19 21 47 0.11 -179 0 0 19 39 49 13 13 7.4 83 43 -64 20 1 48 19 17 49 20 11 9 19 8 26 0.11 -178 0 0 19 26 5 13 12 59.0 83 36 -63 19 48 6 19 4 2 19 57 29 18 54 39 0.11 -177 0 0 19 11 54 13 12 50.6 84 29 -63 19 33 58 18 49 49 19 43 21 18 40 25 0.11 -176 0 0 18 57 17 13 12 42.1 84 21 -62 19 19 23 18 35 9 19 28 47 18 25 44 0.11 -175 0 0 18 42 12 13 12 33.6 84 12 -61 19 4 21 18 20 3 19 13 46 18 10 36 0.11 -174 0 0 18 26 41 13 12 25.1 84 4 -61 18 48 53 18 4 29 18 58 19 17 55 2 0.11 -173 0 0 18 10 44 13 12 16.5 83 356 -60 18 32 58 17 48 29 18 42 25 17 39 0 0.11 -172 0 0 17 54 19 13 12 7.9 83 349 -59 18 16 36 17 32 2 18 26 5 17 22 32 0.11 -171 0 0 17 37 28 13 11 59.3 82 343 -58 17 59 48 17 15 8 18 9 17 17 5 37 0.11 -170 0 0 17 20 11 13 11 50.7 82 337 -57 17 42 33 16 57 48 17 52 4 16 48 16 0.11 -169 0 0 17 2 27 13 11 42.0 81 333 -57 17 24 52 16 40 1 17 34 24 16 30 28 0.11 -168 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Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1772-00508-1 * constellation : Aries * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 39 32.7759 DE: +24 27 44.057 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 39 32.7762 DE: +24 27 44.060 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.300) * V mag [mag]: 8.7 * B mag [mag]: 8.9 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (795) Fini asteroid class: approx. diameter [km]: 78 approx. diameter ["]: 0.051 distance from Earth [AU]: 2.13320 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#76 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): 0.014", 0.003", 55.196° remarks: * orbital elements for (795)Fini : Mean anomaly = 190.6368474952 deg Arg. of pericenter = 189.8905477840 deg Long. of node = 17.3573329706 deg Inclination = 19.0446051879 deg Eccentricity = 0.1008393866 Semimajor axis = 2.7500328873 AU Perihelion dist = 2.4727212579 AU Mag: H = 9.93, G = 0.15 Epoch of elements : MJD 60589.55042958 TDT (2024 Oct 06.5504) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#762023Apr24,6.34,2024,10,6,13.210340,-0.030239,-0.102136,-6.721755,1.928517,-0.002671,-0.001632,0.000001,0.000000 -173.5973,24.5703,-21.16,-5.44,False TYC 1772-00508-1,2.65910440,24.4622380,8.92,8.68,8.55,0.1,0,,2.68319029,24.5703066,5.96,5.64,0,0,0 795,Fini,14.64,78.531,2.1332,0,0,-2.031,7.95,,3.8,0 0,190.5179,2024,10,6,189.8905,17.3573,19.0446,0.10084,2.75003,2.47272,9.93,5.0,0.15 1.213,0.0137,0.0033,55,0.0108,Known errors,1.11,0,-1,-1 20241006_0508-1,60140.61 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:45 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org