IOTA/IOTA-ES occultation update for (3248) Farinella / TYC 7869-00368-1 event on 2023 May 29, 14:42 UT Visible from Australia Summary ------- On 2023 May 29 UT, the 38.6 km diameter asteroid (3248) Farinella will occult a 11.6 mag star in the constellation Scorpius for observers along a path across Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.86 mag to 15.41 mag (the magnitude of the asteroid) for at most 3.370 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: 95 * date and approx. time of event: 2023 May 29, 14:33 - 2023 May 29, 14:51 * geocentric midpoint of event [JD]: 2460094.11287200 * magnitude of target star: 11.58 * magnitude drop [mag]: 3.86 * estimated maximum duration [s]: 3.370 * Moon: 69 % sunlit, 80° distance * Sun: 161° distance * rough path description: Australia The occultation path -------------------- * approximate projected width [km]: 40 * 1 sigma uncertainty interval [path widths]: +/- 0.44 * 1 sigma uncertainty interval [seconds]: +/- 3.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.029, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.029", 0.007", 100°) * approx speed of asteroid's shadow [km/s]: 11.4443 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7869-00368-1 by 3248 Farinella on 2023 May 29 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 61 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 4 0 33 .. .. .. 3 48 29 .... 62 0 0 3 28 0 14 51 29.8 1 128 -13 3 41 46 3 14 15 3 53 50 3 2 13 .... 63 0 0 2 42 7 14 51 29.4 2 128 -14 2 55 50 2 28 26 3 7 51 2 16 28 -0.15 64 0 0 1 56 45 14 51 28.7 4 128 -15 2 10 24 1 43 8 2 22 22 1 31 13 -0.20 65 0 0 1 11 55 14 51 27.8 5 128 -17 1 25 30 0 58 21 1 37 25 0 46 29 -0.22 66 0 0 0 27 38 14 51 26.6 6 128 -18 0 41 10 0 14 8 0 53 2 0 2 19 -0.24 67 0 0 - 0 16 4 14 51 25.1 7 128 -19 - 0 2 37 - 0 29 31 0 9 12 - 0 41 16 -0.25 68 0 0 - 0 59 11 14 51 23.4 9 128 -20 - 0 45 48 - 1 12 34 - 0 34 3 - 1 24 16 -0.25 69 0 0 - 1 41 42 14 51 21.4 10 128 -21 - 1 28 23 - 1 55 1 - 1 16 41 - 2 6 40 -0.26 70 0 0 - 2 23 36 14 51 19.2 11 128 -23 - 2 10 20 - 2 36 51 - 1 58 42 - 2 48 27 -0.26 71 0 0 - 3 4 52 14 51 16.8 12 128 -24 - 2 51 40 - 3 18 3 - 2 40 5 - 3 29 35 -0.27 72 0 0 - 3 45 29 14 51 14.1 13 128 -25 - 3 32 21 - 3 58 36 - 3 20 49 - 4 10 5 -0.27 73 0 0 - 4 25 26 14 51 11.2 15 128 -26 - 4 12 22 - 4 38 30 - 4 0 54 - 4 49 55 -0.27 74 0 0 - 5 4 44 14 51 8.0 16 128 -27 - 4 51 43 - 5 17 43 - 4 40 19 - 5 29 5 -0.27 75 0 0 - 5 43 20 14 51 4.7 17 128 -28 - 5 30 24 - 5 56 16 - 5 19 3 - 6 7 34 -0.27 76 0 0 - 6 21 16 14 51 1.2 18 128 -30 - 6 8 23 - 6 34 8 - 5 57 5 - 6 45 23 -0.27 77 0 0 - 6 58 30 14 50 57.4 19 127 -31 - 6 45 41 - 7 11 18 - 6 34 27 - 7 22 30 -0.28 78 0 0 - 7 35 2 14 50 53.5 20 127 -32 - 7 22 17 - 7 47 46 - 7 11 6 - 7 58 55 -0.28 79 0 0 - 8 10 52 14 50 49.4 22 127 -33 - 7 58 11 - 8 23 32 - 7 47 3 - 8 34 38 -0.28 80 0 0 - 8 46 0 14 50 45.0 23 127 -34 - 8 33 22 - 8 58 36 - 8 22 18 - 9 9 38 -0.28 81 0 0 - 9 20 25 14 50 40.6 24 127 -35 - 9 7 51 - 9 32 57 - 8 56 50 - 9 43 56 -0.28 82 0 0 - 9 54 7 14 50 35.9 25 127 -36 - 9 41 37 -10 6 36 - 9 30 39 -10 17 31 -0.28 83 0 0 -10 27 6 14 50 31.1 26 127 -37 -10 14 40 -10 39 31 -10 3 45 -10 50 24 -0.28 84 0 0 -10 59 22 14 50 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16.3 40 126 -51 -16 19 17 -16 42 45 -16 9 0 -16 53 0 -0.28 97 0 0 -16 54 6 14 49 9.7 40 125 -52 -16 42 25 -17 5 46 -16 32 10 -17 15 59 -0.28 98 0 0 -17 16 29 14 49 3.1 41 125 -53 -17 4 51 -17 28 7 -16 54 38 -17 38 17 -0.28 99 0 0 -17 38 11 14 48 56.4 42 125 -54 -17 26 35 -17 49 46 -17 16 25 -17 59 54 -0.28 100 0 0 -17 59 13 14 48 49.6 43 125 -55 -17 47 39 -18 10 45 -17 37 32 -18 20 51 -0.28 101 0 0 -18 19 34 14 48 42.7 44 125 -56 -18 8 3 -18 31 4 -17 57 57 -18 41 7 -0.28 102 0 0 -18 39 14 14 48 35.8 45 125 -57 -18 27 46 -18 50 42 -18 17 43 -19 0 43 -0.28 103 0 0 -18 58 15 14 48 28.8 46 125 -58 -18 46 49 -19 9 40 -18 36 48 -19 19 40 -0.28 104 0 0 -19 16 36 14 48 21.7 47 125 -59 -19 5 13 -19 27 59 -18 55 13 -19 37 57 -0.28 105 0 0 -19 34 18 14 48 14.5 48 125 -60 -19 22 56 -19 45 38 -19 12 59 -19 55 34 -0.28 106 0 0 -19 51 20 14 48 7.3 49 125 -61 -19 40 1 -20 2 38 -19 30 5 -20 12 32 -0.28 107 0 0 -20 7 43 14 48 0.0 50 125 -62 -19 56 26 -20 19 0 -19 46 33 -20 28 52 -0.28 108 0 0 -20 23 28 14 47 52.7 51 125 -63 -20 12 13 -20 34 42 -20 2 21 -20 44 33 -0.28 109 0 0 -20 38 34 14 47 45.3 52 125 -63 -20 27 21 -20 49 47 -20 17 31 -20 59 35 -0.28 110 0 0 -20 53 2 14 47 37.8 53 125 -64 -20 41 51 -21 4 13 -20 32 2 -21 14 0 -0.28 111 0 0 -21 6 52 14 47 30.3 53 125 -65 -20 55 42 -21 18 1 -20 45 55 -21 27 46 -0.27 112 0 0 -21 20 4 14 47 22.7 54 126 -66 -21 8 56 -21 31 11 -20 59 11 -21 40 55 -0.27 113 0 0 -21 32 38 14 47 15.1 55 126 -67 -21 21 32 -21 43 44 -21 11 48 -21 53 27 -0.27 114 0 0 -21 44 36 14 47 7.4 56 126 -68 -21 33 31 -21 55 40 -21 23 48 -22 5 21 -0.27 115 0 0 -21 55 56 14 46 59.7 57 126 -69 -21 44 53 -22 6 58 -21 35 11 -22 16 38 -0.27 116 0 0 -22 6 39 14 46 52.0 58 126 -70 -21 55 37 -22 17 40 -21 45 57 -22 27 19 -0.27 117 0 0 -22 16 45 14 46 44.2 58 127 -71 -22 5 45 -22 27 45 -21 56 6 -22 37 23 -0.27 118 0 0 -22 26 15 14 46 36.3 59 127 -72 -22 15 16 -22 37 14 -22 5 38 -22 46 50 -0.27 119 0 0 -22 35 9 14 46 28.4 60 127 -73 -22 24 10 -22 46 6 -22 14 33 -22 55 42 -0.27 120 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0 0 - 6 43 39 14 36 10.3 43 223 -39 - 6 30 53 - 6 56 24 - 6 19 42 - 7 7 33 -0.29 -168 0 0 - 6 6 47 14 36 2.6 42 223 -38 - 5 53 58 - 6 19 36 - 5 42 43 - 6 30 48 -0.29 -167 0 0 - 5 29 16 14 35 55.0 41 224 -37 - 5 16 23 - 5 42 8 - 5 5 6 - 5 53 24 -0.29 -166 0 0 - 4 51 7 14 35 47.5 39 224 -36 - 4 38 10 - 5 4 2 - 4 26 49 - 5 15 21 -0.29 -165 0 0 - 4 12 19 14 35 40.1 38 224 -34 - 3 59 18 - 4 25 18 - 3 47 54 - 4 36 40 -0.29 -164 0 0 - 3 32 53 14 35 32.9 37 224 -33 - 3 19 49 - 3 45 56 - 3 8 21 - 3 57 21 -0.29 -163 0 0 - 2 52 50 14 35 25.9 36 224 -32 - 2 39 42 - 3 5 56 - 2 28 12 - 3 17 25 -0.29 -162 0 0 - 2 12 11 14 35 19.0 35 224 -31 - 1 58 59 - 2 25 21 - 1 47 25 - 2 36 52 -0.29 -161 0 0 - 1 30 56 14 35 12.2 34 224 -30 - 1 17 41 - 1 44 9 - 1 6 4 - 1 55 44 -0.29 -160 0 0 - 0 49 6 14 35 5.6 33 224 -29 - 0 35 47 - 1 2 23 - 0 24 7 - 1 14 1 -0.29 -159 0 0 - 0 6 42 14 34 59.2 31 225 -27 0 6 40 - 0 20 3 0 18 24 - 0 31 44 -0.29 -158 0 0 0 36 15 14 34 53.0 30 225 -26 0 49 40 0 22 50 1 1 27 0 11 7 -0.29 -157 0 0 1 19 44 14 34 47.0 29 225 -25 1 33 13 1 6 16 1 45 3 0 54 29 -0.29 -156 0 0 2 3 44 14 34 41.2 28 225 -24 2 17 16 1 50 12 2 29 9 1 38 22 -0.29 -155 0 0 2 48 13 14 34 35.5 27 225 -23 3 1 49 2 34 38 3 13 45 2 22 46 -0.29 -154 0 0 3 33 11 14 34 30.1 25 225 -21 3 46 51 3 19 33 3 58 49 3 7 38 -0.29 -153 0 0 4 18 37 14 34 24.9 24 225 -20 4 32 19 4 4 55 4 44 21 3 52 57 -0.29 -152 0 0 5 4 28 14 34 20.0 23 225 -19 5 18 14 4 50 43 5 30 18 4 38 42 -0.29 -151 0 0 5 50 43 14 34 15.2 22 226 -18 6 4 32 5 36 56 6 16 39 5 24 52 -0.29 -150 0 0 6 37 22 14 34 10.7 20 226 -17 6 51 14 6 23 31 7 3 23 6 11 25 -0.30 -149 0 0 7 24 22 14 34 6.5 19 226 -15 7 38 16 7 10 28 7 50 28 6 58 19 -0.30 -148 0 0 8 11 41 14 34 2.5 18 226 -14 8 25 38 7 57 45 8 37 53 7 45 33 -0.30 -147 0 0 8 59 18 14 33 58.7 17 226 -13 9 13 18 8 45 19 9 25 35 8 33 5 -0.30 -146 0 0 9 47 11 14 33 55.2 15 226 -12 10 1 14 9 33 9 10 13 33 9 20 53 -0.30 -145 0 0 10 35 18 14 33 52.0 14 227 -11 10 49 23 10 21 14 11 1 45 10 8 56 -0.30 -144 0 0 11 23 38 14 33 49.0 13 227 -9 11 37 45 11 9 32 11 50 9 10 57 12 -0.30 -143 0 0 12 12 8 14 33 46.4 12 227 -8 12 26 17 11 57 59 12 38 42 11 45 38 -0.30 -142 0 0 13 0 46 14 33 43.9 10 227 -7 13 14 57 12 46 36 13 27 24 12 34 12 -0.30 -141 0 0 13 49 30 14 33 41.8 9 228 -6 14 3 43 13 35 18 14 16 12 13 22 53 -0.30 -140 0 0 14 38 19 14 33 39.9 8 228 -4 14 52 34 14 24 5 15 5 4 14 11 39 -0.30 -139 0 0 15 27 9 14 33 38.3 7 228 -3 15 41 26 15 12 54 15 53 57 15 0 27 -0.30 -138 0 0 16 16 0 14 33 37.0 5 228 -2 16 30 18 16 1 44 16 42 50 15 49 15 -0.30 -137 0 0 17 4 48 14 33 36.0 4 229 -1 17 19 7 16 50 31 17 31 40 16 38 1 -0.29 -136 0 0 17 53 32 14 33 35.2 3 229 0 18 7 52 17 39 14 18 20 26 17 26 43 -0.29 -135 0 0 18 42 10 14 33 34.7 2 229 1 18 56 30 18 27 51 19 9 5 18 15 19 -0.29 -134 0 0 19 30 38 14 33 34.5 0 230 3 19 44 59 19 16 19 19 57 34 19 3 47 -0.25 Uncertainty in time = +/- 4 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: TYC 7869-00368-1 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 08 37.6121 DE: -37 33 29.406 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 08 37.6121 DE: -37 33 29.406 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3248) Farinella asteroid class: approx. diameter [km]: 39 approx. diameter ["]: 0.026 distance from Earth [AU]: 2.02290 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.029", 0.007", 99.548° remarks: * orbital elements for (3248)Farinella : Mean anomaly = 302.5848843131 deg Arg. of pericenter = 317.3655235281 deg Long. of node = 12.0384405964 deg Inclination = 10.9007034890 deg Eccentricity = 0.1517553389 Semimajor axis = 3.2035602620 AU Perihelion dist = 2.7174028887 AU Mag: H = 11.02, G = 0.15 Epoch of elements : MJD 60093.61284722 TDT (2023 May 29.6128) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,3.37,2023,5,29,14.708928,-0.045161,0.258234,-6.362911,-1.112615,-0.000999,0.001481,0.000001,0.000000 150.0550,-37.5887,-41.27,21.64,False TYC 7869-00368-1,17.14378113,-37.5581683,0.00,11.58,0.00,0.0,0,,17.17051126,-37.5886551,3.86,0.00,0,0,0 3248,Farinella,15.41,38.6,2.0229,0,0,-2.327,-4.83,,2.2,0 0,302.4795,2023,5,29,317.3655,12.0384,10.9007,0.15176,3.20356,2.71740,11.01,5.0,0.15 1.438,0.0290,0.0067,100,0.0115,Known errors,-1.00,-1,-1,-1 20230529_0368-1,60063.19 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:31 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org