IOTA/IOTA-ES occultation update for (2319) Aristides / HIP 106621 event on 2024 Nov 25, 20:10 UT Visible from Summary ------- On 2024 Nov 25 UT, the 10.9152614144189 km diameter asteroid (2319) Aristides will occult a 8.5 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 9.10 mag to 17.60 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: 98 * date and approx. time of event: 2024 Nov 25, 20:06 - 2024 Nov 25, 20:14 * geocentric midpoint of event [JD]: 2460640.34058150 * magnitude of target star: 8.50 * magnitude drop [mag]: 9.10 * estimated maximum duration [s]: 0.470 * Moon: 25 % sunlit, 137° distance * Sun: 77° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 1.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.002", 73°) * approx speed of asteroid's shadow [km/s]: 24.1575 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 106621 by 2319 Aristides on 2024 Nov 25 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 -148 0 0 -43 20 25 20 6 29.0 1 112 60 -43 24 7 -43 16 44 -43 26 46 -43 14 5 .... -147 0 0 -43 38 36 20 6 29.0 1 112 61 -43 42 17 -43 34 55 -43 44 56 -43 32 17 0.45 -146 0 0 -43 56 25 20 6 29.2 2 111 61 -44 0 6 -43 52 44 -44 2 44 -43 50 7 0.46 -145 0 0 -44 13 52 20 6 29.3 3 110 61 -44 17 33 -44 10 12 -44 20 10 -44 7 35 0.47 -144 0 0 -44 30 58 20 6 29.6 4 110 62 -44 34 38 -44 27 18 -44 37 15 -44 24 41 0.48 -143 0 0 -44 47 42 20 6 29.8 4 109 62 -44 51 21 -44 44 3 -44 53 58 -44 41 26 0.48 -142 0 0 -45 4 4 20 6 30.2 5 108 62 -45 7 43 -45 0 26 -45 10 19 -44 57 49 0.48 -141 0 0 -45 20 5 20 6 30.5 6 108 62 -45 23 43 -45 16 27 -45 26 19 -45 13 51 0.48 -140 0 0 -45 35 43 20 6 31.0 7 107 62 -45 39 21 -45 32 6 -45 41 57 -45 29 30 0.48 -139 0 0 -45 51 0 20 6 31.4 7 106 63 -45 54 38 -45 47 23 -45 57 13 -45 44 48 0.48 -138 0 0 -46 5 56 20 6 32.0 8 105 63 -46 9 33 -46 2 19 -46 12 8 -45 59 45 0.48 -137 0 0 -46 20 30 20 6 32.5 9 105 63 -46 24 6 -46 16 54 -46 26 41 -46 14 19 0.48 -136 0 0 -46 34 42 20 6 33.1 10 104 63 -46 38 18 -46 31 6 -46 40 52 -46 28 32 0.48 -135 0 0 -46 48 33 20 6 33.8 10 103 63 -46 52 8 -46 44 57 -46 54 42 -46 42 24 0.48 -134 0 0 -47 2 2 20 6 34.5 11 102 63 -47 5 37 -46 58 27 -47 8 10 -46 55 54 0.48 -133 0 0 -47 15 10 20 6 35.2 12 102 63 -47 18 44 -47 11 35 -47 21 17 -47 9 2 0.48 -132 0 0 -47 27 56 20 6 36.0 12 101 63 -47 31 30 -47 24 22 -47 34 3 -47 21 50 0.48 -131 0 0 -47 40 21 20 6 36.8 13 100 63 -47 43 54 -47 36 48 -47 46 27 -47 34 16 0.48 -130 0 0 -47 52 25 20 6 37.6 14 99 63 -47 55 58 -47 48 52 -47 58 30 -47 46 20 0.48 -129 0 0 -48 4 8 20 6 38.5 15 99 63 -48 7 40 -48 0 36 -48 10 12 -47 58 4 0.48 -128 0 0 -48 15 30 20 6 39.4 15 98 63 -48 19 2 -48 11 58 -48 21 33 -48 9 26 0.48 -127 0 0 -48 26 31 20 6 40.4 16 97 62 -48 30 2 -48 22 59 -48 32 33 -48 20 28 0.48 -126 0 0 -48 37 10 20 6 41.4 17 96 62 -48 40 42 -48 33 39 -48 43 13 -48 31 9 0.48 -125 0 0 -48 47 30 20 6 42.4 17 96 62 -48 51 0 -48 43 59 -48 53 31 -48 41 29 0.48 -124 0 0 -48 57 28 20 6 43.5 18 95 62 -49 0 58 -48 53 58 -49 3 29 -48 51 28 0.48 -123 0 0 -49 7 6 20 6 44.6 19 94 62 -49 10 36 -49 3 36 -49 13 6 -49 1 6 0.48 -122 0 0 -49 16 23 20 6 45.7 19 93 62 -49 19 53 -49 12 54 -49 22 23 -49 10 24 0.48 -121 0 0 -49 25 20 20 6 46.9 20 92 61 -49 28 49 -49 21 51 -49 31 19 -49 19 22 0.48 -120 0 0 -49 33 57 20 6 48.1 21 92 61 -49 37 25 -49 30 28 -49 39 55 -49 27 59 0.48 -119 0 0 -49 42 13 20 6 49.3 21 91 61 -49 45 41 -49 38 45 -49 48 10 -49 36 16 0.48 -118 0 0 -49 50 9 20 6 50.6 22 90 61 -49 53 37 -49 46 41 -49 56 6 -49 44 12 0.48 -117 0 0 -49 57 45 20 6 51.8 23 89 60 -50 1 13 -49 54 17 -50 3 41 -49 51 49 0.48 -116 0 0 -50 5 1 20 6 53.2 23 88 60 -50 8 28 -50 1 34 -50 10 57 -49 59 6 0.48 -115 0 0 -50 11 57 20 6 54.5 24 87 60 -50 15 24 -50 8 30 -50 17 52 -50 6 2 0.48 -114 0 0 -50 18 33 20 6 55.9 25 87 59 -50 22 0 -50 15 6 -50 24 28 -50 12 39 0.48 -113 0 0 -50 24 50 20 6 57.3 25 86 59 -50 28 16 -50 21 23 -50 30 44 -50 18 56 0.48 -112 0 0 -50 30 46 20 6 58.7 26 85 59 -50 34 13 -50 27 20 -50 36 40 -50 24 53 0.48 -111 0 0 -50 36 23 20 7 0.2 26 84 58 -50 39 50 -50 32 58 -50 42 17 -50 30 30 0.48 -110 0 0 -50 41 41 20 7 1.7 27 83 58 -50 45 7 -50 38 15 -50 47 34 -50 35 48 0.48 -109 0 0 -50 46 39 20 7 3.2 28 82 58 -50 50 5 -50 43 14 -50 52 32 -50 40 47 0.48 -108 0 0 -50 51 18 20 7 4.7 28 82 57 -50 54 43 -50 47 52 -50 57 10 -50 45 26 0.48 -107 0 0 -50 55 37 20 7 6.3 29 81 57 -50 59 2 -50 52 12 -51 1 29 -50 49 45 0.48 -106 0 0 -50 59 37 20 7 7.9 30 80 56 -51 3 2 -50 56 12 -51 5 28 -50 53 45 0.48 -105 0 0 -51 3 17 20 7 9.5 30 79 56 -51 6 42 -50 59 53 -51 9 8 -50 57 26 0.48 -104 0 0 -51 6 39 20 7 11.2 31 78 56 -51 10 3 -51 3 14 -51 12 30 -51 0 48 0.48 -103 0 0 -51 9 41 20 7 12.9 31 77 55 -51 13 5 -51 6 16 -51 15 31 -51 3 50 0.48 -102 0 0 -51 12 24 20 7 14.6 32 76 55 -51 15 48 -51 9 0 -51 18 14 -51 6 34 0.48 -101 0 0 -51 14 48 20 7 16.3 33 75 54 -51 18 12 -51 11 24 -51 20 38 -51 8 58 0.48 -100 0 0 -51 16 52 20 7 18.1 33 74 54 -51 20 17 -51 13 28 -51 22 43 -51 11 3 0.48 - 99 0 0 -51 18 38 20 7 19.9 34 73 53 -51 22 2 -51 15 14 -51 24 28 -51 12 49 0.48 - 98 0 0 -51 20 5 20 7 21.7 34 73 53 -51 23 29 -51 16 41 -51 25 55 -51 14 15 0.48 - 97 0 0 -51 21 12 20 7 23.5 35 72 53 -51 24 36 -51 17 49 -51 27 2 -51 15 23 0.48 - 96 0 0 -51 22 1 20 7 25.4 36 71 52 -51 25 25 -51 18 37 -51 27 51 -51 16 12 0.48 - 95 0 0 -51 22 31 20 7 27.3 36 70 52 -51 25 55 -51 19 7 -51 28 20 -51 16 41 0.48 - 94 0 0 -51 22 41 20 7 29.2 37 69 51 -51 26 5 -51 19 18 -51 28 31 -51 16 52 0.48 - 93 0 0 -51 22 33 20 7 31.1 37 68 51 -51 25 57 -51 19 9 -51 28 22 -51 16 44 0.48 - 92 0 0 -51 22 5 20 7 33.1 38 67 50 -51 25 29 -51 18 42 -51 27 55 -51 16 16 0.48 - 91 0 0 -51 21 19 20 7 35.1 38 66 50 -51 24 43 -51 17 55 -51 27 8 -51 15 29 0.48 - 90 0 0 -51 20 13 20 7 37.2 39 65 49 -51 23 37 -51 16 49 -51 26 3 -51 14 24 0.48 - 89 0 0 -51 18 49 20 7 39.2 40 64 49 -51 22 12 -51 15 25 -51 24 38 -51 12 59 0.48 - 88 0 0 -51 17 5 20 7 41.3 40 63 48 -51 20 29 -51 13 41 -51 22 55 -51 11 15 0.48 - 87 0 0 -51 15 2 20 7 43.4 41 62 48 -51 18 26 -51 11 38 -51 20 52 -51 9 12 0.48 - 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9 58 44 20 14 17.6 12 255 -55 -10 2 24 - 9 55 5 -10 5 1 - 9 52 28 0.52 37 0 0 - 9 36 14 20 14 18.7 11 255 -56 - 9 39 53 - 9 32 35 - 9 42 30 - 9 29 58 0.53 38 0 0 - 9 14 7 20 14 19.6 10 255 -56 - 9 17 46 - 9 10 29 - 9 20 22 - 9 7 53 0.53 39 0 0 - 8 52 25 20 14 20.5 9 254 -57 - 8 56 3 - 8 48 47 - 8 58 39 - 8 46 11 0.54 40 0 0 - 8 31 7 20 14 21.2 8 254 -58 - 8 34 45 - 8 27 29 - 8 37 20 - 8 24 54 0.54 41 0 0 - 8 10 14 20 14 21.9 7 254 -59 - 8 13 51 - 8 6 37 - 8 16 26 - 8 4 2 0.55 42 0 0 - 7 49 46 20 14 22.5 5 254 -59 - 7 53 23 - 7 46 9 - 7 55 58 - 7 43 35 0.56 43 0 0 - 7 29 44 20 14 22.9 4 254 -60 - 7 33 20 - 7 26 8 - 7 35 54 - 7 23 33 0.58 44 0 0 - 7 10 7 20 14 23.3 3 254 -60 - 7 13 43 - 7 6 31 - 7 16 17 - 7 3 57 0.60 45 0 0 - 6 50 57 20 14 23.6 2 254 -61 - 6 54 32 - 6 47 21 - 6 57 6 - 6 44 48 0.65 46 0 0 - 6 32 13 20 14 23.7 1 253 -62 - 6 35 47 - 6 28 38 - 6 38 21 - 6 26 5 0.78 47 0 0 - 6 13 55 20 14 23.8 0 253 -62 - 6 17 29 - 6 10 21 - 6 20 3 - 6 7 48 1.95 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: HIP 106621 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 35 44.8932 DE: -16 39 21.268 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 35 44.8931 DE: -16 39 21.269 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 8.5 * B mag [mag]: 9.1 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2319) Aristides asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.005 distance from Earth [AU]: 2.74200 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#55 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", 0.002", 73.435° remarks: * orbital elements for (2319)Aristides : Mean anomaly = 325.7582358608 deg Arg. of pericenter = 269.8057411450 deg Long. of node = 112.5163581515 deg Inclination = 2.9728546595 deg Eccentricity = 0.0893601063 Semimajor axis = 2.9054839876 AU Perihelion dist = 2.6458496295 AU Mag: H = 12.24, G = 0.15 Epoch of elements : MJD 60639.84058130 TDT (2024 Nov 25.8406) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,0.47,2024,11,25,20.173956,0.145210,-0.410593,12.858178,4.537140,0.005462,0.001812,0.000000,0.000000 -43.5889,-16.5459,-125.80,-20.96,False HIP 106621,21.59580370,-16.6559077,9.06,8.50,8.20,0.2,0,,21.61860606,-16.5458680,9.10,8.96,0,0,0 2319,Aristides,17.60,11.313,2.7420,0,0,2.868,14.55,,1.6,0 0,325.5910,2024,11,25,269.8057,112.5164,2.9729,0.08936,2.90548,2.64585,12.23,5.0,0.15 1.357,0.0143,0.0019,73,0.0020,Known errors,1.24,0,-1,-1 20241125_106621,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:09 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org