IOTA/IOTA-ES occultation update for (43) Ariadne / TYC 6277-01208-1 event on 2024 Oct 08, 13:56 UT Visible from Summary ------- On 2024 Oct 08 UT, the 60.823 km diameter asteroid (43) Ariadne will occult a 11.9 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 0.76 mag to 11.90 mag (the magnitude of the asteroid) for at most 2.280 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 Oct 08, 13:52 - 2024 Oct 08, 13:59 * geocentric midpoint of event [JD]: 2460592.08076942 * magnitude of target star: 11.89 * magnitude drop [mag]: 0.76 * estimated maximum duration [s]: 2.280 * Moon: 28 % sunlit, 17° distance * Sun: 79° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 71 * 1 sigma uncertainty interval [path widths]: +/- 0.04 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.001", 83°) * approx speed of asteroid's shadow [km/s]: 26.6191 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6277-01208-1 by 43 Ariadne on 2024 Oct 8 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 - 53 0 0 -31 29 5 13 52 52.5 1 114 58 -31 50 16 -31 8 0 -31 52 5 -31 6 11 .... - 52 0 0 -31 52 40 13 52 52.5 2 114 58 -32 13 51 -31 31 34 -32 15 41 -31 29 46 0.53 - 51 0 0 -32 16 12 13 52 52.7 2 113 58 -32 37 23 -31 55 5 -32 39 12 -31 53 17 0.55 - 50 0 0 -32 39 38 13 52 52.9 3 113 58 -33 0 50 -32 18 32 -33 2 39 -32 16 43 0.57 - 49 0 0 -33 3 0 13 52 53.3 4 112 59 -33 24 12 -32 41 54 -33 26 2 -32 40 5 0.57 - 48 0 0 -33 26 17 13 52 53.6 5 112 59 -33 47 28 -33 5 10 -33 49 18 -33 3 22 0.58 - 47 0 0 -33 49 27 13 52 54.1 6 111 59 -34 10 38 -33 28 21 -34 12 28 -33 26 32 0.58 - 46 0 0 -34 12 30 13 52 54.6 7 110 59 -34 33 42 -33 51 24 -34 35 31 -33 49 36 0.58 - 45 0 0 -34 35 27 13 52 55.2 8 110 59 -34 56 38 -34 14 21 -34 58 27 -34 12 32 0.59 - 44 0 0 -34 58 15 13 52 55.8 9 109 59 -35 19 26 -34 37 10 -35 21 15 -34 35 21 0.59 - 43 0 0 -35 20 55 13 52 56.6 10 109 59 -35 42 5 -34 59 50 -35 43 55 -34 58 2 0.59 - 42 0 0 -35 43 27 13 52 57.3 11 108 59 -36 4 36 -35 22 22 -36 6 26 -35 20 34 0.59 - 41 0 0 -36 5 49 13 52 58.2 12 107 59 -36 26 58 -35 44 45 -36 28 47 -35 42 57 0.59 - 40 0 0 -36 28 1 13 52 59.1 12 107 59 -36 49 10 -36 6 58 -36 50 59 -36 5 10 0.59 - 39 0 0 -36 50 3 13 53 0.1 13 106 59 -37 11 11 -36 29 1 -37 13 0 -36 27 13 0.59 - 38 0 0 -37 11 55 13 53 1.1 14 106 59 -37 33 1 -36 50 53 -37 34 51 -36 49 5 0.59 - 37 0 0 -37 33 35 13 53 2.2 15 105 58 -37 54 41 -37 12 34 -37 56 30 -37 10 46 0.59 - 36 0 0 -37 55 4 13 53 3.3 16 104 58 -38 16 8 -37 34 4 -38 17 57 -37 32 16 0.59 - 35 0 0 -38 16 20 13 53 4.5 17 104 58 -38 37 24 -37 55 22 -38 39 13 -37 53 34 0.59 - 34 0 0 -38 37 25 13 53 5.7 18 103 58 -38 58 27 -38 16 27 -39 0 16 -38 14 39 0.59 - 33 0 0 -38 58 16 13 53 7.0 18 102 57 -39 19 17 -38 37 20 -39 21 6 -38 35 32 0.59 - 32 0 0 -39 18 54 13 53 8.4 19 102 57 -39 39 54 -38 58 0 -39 41 43 -38 56 12 0.59 - 31 0 0 -39 39 19 13 53 9.8 20 101 57 -40 0 18 -39 18 26 -40 2 6 -39 16 38 0.59 - 30 0 0 -39 59 30 13 53 11.2 21 100 56 -40 20 27 -39 38 38 -40 22 16 -39 36 51 0.59 - 29 0 0 -40 19 27 13 53 12.7 22 99 56 -40 40 23 -39 58 37 -40 42 11 -39 56 49 0.59 - 28 0 0 -40 39 10 13 53 14.3 23 99 55 -41 0 4 -40 18 21 -41 1 52 -40 16 33 0.59 - 27 0 0 -40 58 37 13 53 15.8 23 98 55 -41 19 30 -40 37 50 -41 21 17 -40 36 3 0.59 - 26 0 0 -41 17 50 13 53 17.5 24 97 55 -41 38 40 -40 57 4 -41 40 28 -40 55 17 0.59 - 25 0 0 -41 36 47 13 53 19.1 25 96 54 -41 57 36 -41 16 3 -41 59 24 -41 14 17 0.59 - 24 0 0 -41 55 29 13 53 20.8 26 96 54 -42 16 16 -41 34 47 -42 18 4 -41 33 0 0.59 - 23 0 0 -42 13 55 13 53 22.6 27 95 53 -42 34 40 -41 53 15 -42 36 28 -41 51 28 0.59 - 22 0 0 -42 32 5 13 53 24.3 27 94 53 -42 52 48 -42 11 27 -42 54 36 -42 9 40 0.59 - 21 0 0 -42 49 59 13 53 26.1 28 93 52 -43 10 40 -42 29 22 -43 12 27 -42 27 36 0.59 - 20 0 0 -43 7 37 13 53 28.0 29 93 52 -43 28 16 -42 47 2 -43 30 3 -42 45 16 0.59 - 19 0 0 -43 24 57 13 53 29.9 30 92 51 -43 45 35 -43 4 25 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59 0.59 - 6 0 0 -46 44 25 13 53 56.7 39 80 44 -47 4 34 -46 24 19 -47 6 18 -46 22 36 0.59 - 5 0 0 -46 57 42 13 53 58.9 39 79 43 -47 17 49 -46 37 39 -47 19 33 -46 35 56 0.59 - 4 0 0 -47 10 41 13 54 1.1 40 78 43 -47 30 46 -46 50 40 -47 32 30 -46 48 57 0.59 - 3 0 0 -47 23 23 13 54 3.4 40 77 42 -47 43 26 -47 3 24 -47 45 9 -47 1 41 0.59 - 2 0 0 -47 35 46 13 54 5.7 41 76 42 -47 55 47 -47 15 50 -47 57 31 -47 14 7 0.59 - 1 0 0 -47 47 52 13 54 8.0 42 74 41 -48 7 51 -47 27 58 -48 9 34 -47 26 15 0.59 0 0 0 -47 59 40 13 54 10.2 42 73 40 -48 19 36 -47 39 47 -48 21 20 -47 38 5 0.59 1 0 0 -48 11 10 13 54 12.6 43 72 40 -48 31 4 -47 51 20 -48 32 47 -47 49 37 0.59 2 0 0 -48 22 22 13 54 14.9 43 71 39 -48 42 14 -48 2 34 -48 43 57 -48 0 52 0.59 3 0 0 -48 33 16 13 54 17.2 44 70 39 -48 53 7 -48 13 30 -48 54 49 -48 11 48 0.59 4 0 0 -48 43 53 13 54 19.6 45 69 38 -49 3 41 -48 24 9 -49 5 24 -48 22 27 0.59 5 0 0 -48 54 11 13 54 21.9 45 68 37 -49 13 58 -48 34 29 -49 15 40 -48 32 48 0.59 6 0 0 -49 4 12 13 54 24.3 46 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56 31 21 -51 59 32 -51 21 14 -52 1 11 -51 19 36 0.59 32 0 0 -51 42 54 13 55 28.7 56 30 21 -52 2 5 -51 23 48 -52 3 44 -51 22 10 0.59 33 0 0 -51 45 11 13 55 31.2 57 28 20 -52 4 21 -51 26 5 -52 6 0 -51 24 27 0.60 34 0 0 -51 47 11 13 55 33.8 57 26 20 -52 6 20 -51 28 6 -52 7 59 -51 26 27 0.60 35 0 0 -51 48 54 13 55 36.4 57 25 19 -52 8 3 -51 29 49 -52 9 42 -51 28 11 0.60 36 0 0 -51 50 21 13 55 38.9 57 23 18 -52 9 29 -51 31 16 -52 11 8 -51 29 38 0.60 37 0 0 -51 51 31 13 55 41.5 58 21 18 -52 10 39 -51 32 26 -52 12 17 -51 30 48 0.60 38 0 0 -51 52 24 13 55 44.1 58 20 17 -52 11 32 -51 33 20 -52 13 10 -51 31 42 0.60 39 0 0 -51 53 0 13 55 46.7 58 18 16 -52 12 8 -51 33 56 -52 13 47 -51 32 18 0.60 40 0 0 -51 53 20 13 55 49.3 58 16 16 -52 12 28 -51 34 16 -52 14 7 -51 32 38 0.60 41 0 0 -51 53 24 13 55 51.8 58 14 15 -52 12 31 -51 34 20 -52 14 10 -51 32 42 0.60 42 0 0 -51 53 10 13 55 54.4 59 13 15 -52 12 18 -51 34 6 -52 13 57 -51 32 28 0.60 43 0 0 -51 52 40 13 55 57.0 59 11 14 -52 11 48 -51 33 36 -52 13 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58 10.9 46 289 -19 -45 44 1 -45 3 23 -45 45 47 -45 1 38 0.60 94 0 0 -45 8 23 13 58 13.6 45 287 -20 -45 28 46 -44 48 3 -45 30 32 -44 46 18 0.60 95 0 0 -44 52 48 13 58 16.2 45 286 -21 -45 13 14 -44 32 26 -45 14 59 -44 30 41 0.60 96 0 0 -44 36 55 13 58 18.8 44 285 -22 -44 57 23 -44 16 32 -44 59 9 -44 14 47 0.60 97 0 0 -44 20 45 13 58 21.4 44 284 -22 -44 41 16 -44 0 20 -44 43 2 -43 58 34 0.60 98 0 0 -44 4 18 13 58 24.0 43 283 -23 -44 24 51 -43 43 50 -44 26 37 -43 42 5 0.60 99 0 0 -43 47 34 13 58 26.6 42 282 -24 -44 8 9 -43 27 4 -44 9 55 -43 25 19 0.60 100 0 0 -43 30 33 13 58 29.1 42 281 -25 -43 51 9 -43 10 1 -43 52 56 -43 8 15 0.60 101 0 0 -43 13 14 13 58 31.7 41 280 -25 -43 33 53 -42 52 40 -43 35 40 -42 50 54 0.60 102 0 0 -42 55 39 13 58 34.2 40 279 -26 -43 16 20 -42 35 3 -43 18 7 -42 33 17 0.60 103 0 0 -42 37 48 13 58 36.7 40 277 -27 -42 58 30 -42 17 10 -43 0 17 -42 15 23 0.60 104 0 0 -42 19 39 13 58 39.2 39 276 -28 -42 40 24 -41 59 0 -42 42 11 -41 57 13 0.60 105 0 0 -42 1 15 13 58 41.6 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56 -37 39 52 -38 23 45 -37 38 4 0.61 118 0 0 -37 39 21 13 59 10.9 28 264 -39 -38 0 27 -37 18 20 -38 2 16 -37 16 32 0.61 119 0 0 -37 17 39 13 59 12.9 27 264 -39 -37 38 46 -36 56 37 -37 40 35 -36 54 49 0.61 120 0 0 -36 55 46 13 59 14.8 26 263 -40 -37 16 53 -36 34 43 -37 18 43 -36 32 55 0.61 121 0 0 -36 33 41 13 59 16.7 26 262 -41 -36 54 50 -36 12 38 -36 56 39 -36 10 49 0.61 122 0 0 -36 11 26 13 59 18.6 25 261 -42 -36 32 36 -35 50 22 -36 34 25 -35 48 34 0.61 123 0 0 -35 49 1 13 59 20.4 24 261 -42 -36 10 11 -35 27 56 -36 12 1 -35 26 8 0.61 124 0 0 -35 26 27 13 59 22.1 23 260 -43 -35 47 37 -35 5 21 -35 49 27 -35 3 33 0.61 125 0 0 -35 3 43 13 59 23.8 22 259 -44 -35 24 54 -34 42 37 -35 26 44 -34 40 49 0.62 126 0 0 -34 40 51 13 59 25.4 21 259 -45 -35 2 3 -34 19 45 -35 3 52 -34 17 56 0.62 127 0 0 -34 17 51 13 59 27.0 20 258 -45 -34 39 3 -33 56 44 -34 40 52 -33 54 55 0.62 128 0 0 -33 54 43 13 59 28.6 19 257 -46 -34 15 55 -33 33 36 -34 17 45 -33 31 48 0.62 129 0 0 -33 31 29 13 59 30.0 19 257 -47 -33 52 41 -33 10 22 -33 54 31 -33 8 33 0.62 130 0 0 -33 8 8 13 59 31.4 18 256 -48 -33 29 20 -32 47 1 -33 31 10 -32 45 12 0.62 131 0 0 -32 44 41 13 59 32.8 17 256 -48 -33 5 53 -32 23 34 -33 7 43 -32 21 45 0.62 132 0 0 -32 21 9 13 59 34.0 16 255 -49 -32 42 21 -32 0 2 -32 44 11 -31 58 14 0.63 133 0 0 -31 57 33 13 59 35.2 15 254 -50 -32 18 45 -31 36 26 -32 20 34 -31 34 37 0.63 134 0 0 -31 33 52 13 59 36.4 14 254 -50 -31 55 4 -31 12 46 -31 56 54 -31 10 57 0.63 135 0 0 -31 10 8 13 59 37.5 13 253 -51 -31 31 20 -30 49 2 -31 33 9 -30 47 13 0.63 136 0 0 -30 46 22 13 59 38.5 12 253 -52 -31 7 32 -30 25 16 -31 9 22 -30 23 27 0.63 137 0 0 -30 22 33 13 59 39.4 11 252 -52 -30 43 43 -30 1 28 -30 45 32 -29 59 39 0.64 138 0 0 -29 58 42 13 59 40.3 10 252 -53 -30 19 52 -29 37 38 -30 21 41 -29 35 49 0.64 139 0 0 -29 34 51 13 59 41.1 9 251 -54 -29 56 0 -29 13 47 -29 57 49 -29 11 59 0.65 140 0 0 -29 10 59 13 59 41.8 8 251 -54 -29 32 7 -28 49 56 -29 33 57 -28 48 8 0.65 141 0 0 -28 47 8 13 59 42.4 7 250 -55 -29 8 15 -28 26 6 -29 10 4 -28 24 17 0.66 142 0 0 -28 23 18 13 59 43.0 6 250 -55 -28 44 24 -28 2 16 -28 46 13 -28 0 28 0.67 143 0 0 -27 59 29 13 59 43.5 5 249 -56 -28 20 34 -27 38 29 -28 22 23 -27 36 41 0.68 144 0 0 -27 35 42 13 59 43.9 4 249 -56 -27 56 47 -27 14 43 -27 58 36 -27 12 55 0.70 145 0 0 -27 11 59 13 59 44.2 3 248 -57 -27 33 2 -26 51 1 -27 34 51 -26 49 13 0.73 146 0 0 -26 48 19 13 59 44.4 2 248 -57 -27 9 20 -26 27 22 -27 11 9 -26 25 34 0.78 147 0 0 -26 24 43 13 59 44.6 1 247 -57 -26 45 43 -26 3 47 -26 47 32 -26 2 0 0.91 148 0 0 -26 1 12 13 59 44.7 0 247 -58 -26 22 11 -25 40 18 -26 23 59 -25 38 30 1.52 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 6277-01208-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 20 48.6675 DE: -20 53 45.714 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 20 48.6675 DE: -20 53 45.714 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.9 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (43) Ariadne asteroid class: approx. diameter [km]: 61 approx. diameter ["]: 0.048 distance from Earth [AU]: 1.76160 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#134 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): 0.024", 0.001", 83.458° remarks: * orbital elements for (43)Ariadne : Mean anomaly = 18.3926479164 deg Arg. of pericenter = 16.1281263549 deg Long. of node = 264.7469786852 deg Inclination = 3.4706870182 deg Eccentricity = 0.1684769024 Semimajor axis = 2.2031449094 AU Perihelion dist = 1.8319658795 AU Mag: H = 7.98, G = 0.11 Epoch of elements : MJD 60591.58076912 TDT (2024 Oct 08.5808) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1342023Apr24,2.28,2024,10,8,13.938466,0.025861,-0.507630,15.004687,0.772549,0.005016,0.000238,0.000000,0.000000 48.8023,-20.8855,-32.23,-6.21,False TYC 6277-01208-1,18.34685213,-20.8960318,12.09,11.89,11.78,0.0,0,,18.37137232,-20.8855267,0.76,0.60,0,0,0 43,Ariadne,11.90,60.823,1.7616,0,0,5.345,3.86,,3.6,0 0,18.2176,2024,10,8,16.1281,264.7470,3.4707,0.16848,2.20314,1.83197,7.97,5.0,0.15 1.043,0.0240,0.0014,83,0.0020,Known errors,0.73,0,-1,-1 20241008_1208-1,60140.62 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:51 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org