IOTA/IOTA-ES occultation update for (1395) Aribeda / TYC 1353-01080-1 event on 2024 Oct 04, 11:03 UT Visible from Summary ------- On 2024 Oct 04 UT, the 20.7216233276192 km diameter asteroid (1395) Aribeda will occult a 9.3 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.18 mag to 17.48 mag (the magnitude of the asteroid) for at most 1.220 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: 97 * date and approx. time of event: 2024 Oct 04, 10:57 - 2024 Oct 04, 11:09 * geocentric midpoint of event [JD]: 2460587.96078162 * magnitude of target star: 9.30 * magnitude drop [mag]: 8.18 * estimated maximum duration [s]: 1.220 * Moon: 3 % sunlit, 104° distance * Sun: 86° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 21 * 1 sigma uncertainty interval [path widths]: +/- 0.40 * 1 sigma uncertainty interval [seconds]: +/- 2.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.003", 105°) * approx speed of asteroid's shadow [km/s]: 17.5498 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1353-01080-1 by 1395 Aribeda on 2024 Oct 4 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 -167 0 0 18 7 48 10 57 28.2 0 70 -77 18 1 38 18 13 59 17 56 43 18 18 54 .... -166 0 0 18 28 24 10 57 28.3 1 70 -76 18 22 15 18 34 34 18 17 20 18 39 28 -0.09 -165 0 0 18 48 37 10 57 28.5 2 71 -76 18 42 28 18 54 46 18 37 34 18 59 40 -0.05 -164 0 0 19 8 26 10 57 28.8 3 71 -75 19 2 18 19 14 34 18 57 25 19 19 27 -0.04 -163 0 0 19 27 51 10 57 29.2 4 71 -75 19 21 44 19 33 58 19 16 51 19 38 51 -0.03 -162 0 0 19 46 52 10 57 29.7 5 72 -74 19 40 45 19 52 59 19 35 53 19 57 51 -0.02 -161 0 0 20 5 28 10 57 30.4 6 72 -73 19 59 23 20 11 34 19 54 31 20 16 26 -0.02 -160 0 0 20 23 40 10 57 31.1 7 72 -73 20 17 35 20 29 46 20 12 44 20 34 37 -0.02 -159 0 0 20 41 28 10 57 32.0 8 73 -72 20 35 23 20 47 32 20 30 33 20 52 23 -0.02 -158 0 0 20 58 50 10 57 32.9 9 73 -71 20 52 47 21 4 54 20 47 57 21 9 44 -0.01 -157 0 0 21 15 48 10 57 34.0 10 73 -71 21 9 45 21 21 51 21 4 56 21 26 40 -0.01 -156 0 0 21 32 21 10 57 35.1 11 74 -70 21 26 18 21 38 23 21 21 29 21 43 12 -0.01 -155 0 0 21 48 28 10 57 36.4 12 74 -69 21 42 26 21 54 29 21 37 38 21 59 18 -0.01 -154 0 0 22 4 10 10 57 37.7 13 75 -68 21 58 9 22 10 11 21 53 21 22 14 59 -0.01 -153 0 0 22 19 26 10 57 39.2 14 75 -68 22 13 26 22 25 27 22 8 39 22 30 14 -0.01 -152 0 0 22 34 17 10 57 40.7 15 75 -67 22 28 18 22 40 17 22 23 31 22 45 4 -0.01 -151 0 0 22 48 43 10 57 42.3 16 76 -66 22 42 44 22 54 42 22 37 58 22 59 28 -0.01 -150 0 0 23 2 43 10 57 44.1 17 76 -65 22 56 44 23 8 41 22 51 59 23 13 27 -0.01 -149 0 0 23 16 17 10 57 45.9 18 76 -64 23 10 19 23 22 14 23 5 34 23 27 0 -0.01 -148 0 0 23 29 25 10 57 47.8 19 77 -64 23 23 28 23 35 22 23 18 43 23 40 7 -0.01 -147 0 0 23 42 7 10 57 49.8 20 77 -63 23 36 11 23 48 4 23 31 27 23 52 48 0.00 -146 0 0 23 54 24 10 57 51.9 21 78 -62 23 48 28 24 0 20 23 43 44 24 5 4 0.00 -145 0 0 24 6 15 10 57 54.0 22 78 -61 24 0 19 24 12 10 23 55 36 24 16 53 0.00 -144 0 0 24 17 39 10 57 56.3 23 79 -60 24 11 44 24 23 34 24 7 1 24 28 17 0.00 -143 0 0 24 28 38 10 57 58.6 24 79 -59 24 22 43 24 34 32 24 18 1 24 39 15 0.00 -142 0 0 24 39 11 10 58 1.0 25 79 -58 24 33 17 24 45 4 24 28 35 24 49 46 0.00 -141 0 0 24 49 17 10 58 3.6 25 80 -58 24 43 24 24 55 11 24 38 42 24 59 52 0.00 -140 0 0 24 58 58 10 58 6.1 26 80 -57 24 53 5 25 4 51 24 48 23 25 9 32 0.00 -139 0 0 25 8 12 10 58 8.8 27 81 -56 25 2 20 25 14 5 24 57 39 25 18 45 0.00 -138 0 0 25 17 0 10 58 11.5 28 81 -55 25 11 8 25 22 52 25 6 28 25 27 33 0.00 -137 0 0 25 25 23 10 58 14.4 29 81 -54 25 19 31 25 31 14 25 14 51 25 35 54 0.00 -136 0 0 25 33 19 10 58 17.3 30 82 -53 25 27 27 25 39 10 25 22 47 25 43 50 0.00 -135 0 0 25 40 49 10 58 20.2 31 82 -53 25 34 58 25 46 39 25 30 18 25 51 19 0.00 -134 0 0 25 47 52 10 58 23.3 32 83 -52 25 42 2 25 53 43 25 37 23 25 58 22 0.00 -133 0 0 25 54 30 10 58 26.4 33 83 -51 25 48 40 26 0 20 25 44 1 26 4 59 0.00 -132 0 0 26 0 41 10 58 29.6 34 84 -50 25 54 52 26 6 31 25 50 13 26 11 10 0.00 -131 0 0 26 6 27 10 58 32.9 35 84 -49 26 0 37 26 12 16 25 55 59 26 16 55 0.00 -130 0 0 26 11 46 10 58 36.2 36 85 -48 26 5 57 26 17 35 26 1 18 26 22 14 0.00 -129 0 0 26 16 39 10 58 39.6 37 85 -47 26 10 50 26 22 28 26 6 12 26 27 6 0.00 -128 0 0 26 21 6 10 58 43.1 37 85 -46 26 15 17 26 26 54 26 10 39 26 31 32 0.00 -127 0 0 26 25 6 10 58 46.7 38 86 -46 26 19 18 26 30 55 26 14 40 26 35 33 0.00 -126 0 0 26 28 41 10 58 50.3 39 86 -45 26 22 52 26 34 29 26 18 15 26 39 7 0.00 -125 0 0 26 31 49 10 58 54.0 40 87 -44 26 26 1 26 37 37 26 21 23 26 42 15 0.00 -124 0 0 26 34 31 10 58 57.8 41 87 -43 26 28 43 26 40 19 26 24 5 26 44 56 0.00 -123 0 0 26 36 47 10 59 1.6 42 88 -42 26 30 59 26 42 34 26 26 21 26 47 12 0.00 -122 0 0 26 38 36 10 59 5.5 43 88 -41 26 32 48 26 44 24 26 28 11 26 49 1 0.00 -121 0 0 26 39 59 10 59 9.4 44 89 -40 26 34 11 26 45 47 26 29 34 26 50 24 0.00 -120 0 0 26 40 56 10 59 13.5 45 89 -40 26 35 8 26 46 44 26 30 31 26 51 21 0.00 -119 0 0 26 41 27 10 59 17.6 46 89 -39 26 35 39 26 47 15 26 31 2 26 51 52 0.00 -118 0 0 26 41 31 10 59 21.7 47 90 -38 26 35 43 26 47 19 26 31 6 26 51 56 0.00 -117 0 0 26 41 9 10 59 25.9 47 90 -37 26 35 21 26 46 57 26 30 44 26 51 34 0.00 -116 0 0 26 40 21 10 59 30.2 48 91 -36 26 34 33 26 46 9 26 29 56 26 50 46 0.00 -115 0 0 26 39 6 10 59 34.6 49 91 -35 26 33 18 26 44 54 26 28 41 26 49 31 0.00 -114 0 0 26 37 25 10 59 39.0 50 92 -34 26 31 37 26 43 13 26 27 0 26 47 50 0.00 -113 0 0 26 35 17 10 59 43.5 51 92 -33 26 29 29 26 41 5 26 24 52 26 45 43 0.00 -112 0 0 26 32 43 10 59 48.0 52 93 -33 26 26 55 26 38 32 26 22 18 26 43 9 0.01 -111 0 0 26 29 43 10 59 52.6 53 93 -32 26 23 55 26 35 31 26 19 17 26 40 9 0.01 -110 0 0 26 26 16 10 59 57.3 54 93 -31 26 20 27 26 32 4 26 15 50 26 36 42 0.01 -109 0 0 26 22 22 11 0 2.0 55 94 -30 26 16 34 26 28 11 26 11 56 26 32 49 0.01 -108 0 0 26 18 2 11 0 6.8 56 94 -29 26 12 13 26 23 51 26 7 35 26 28 29 0.01 -107 0 0 26 13 15 11 0 11.6 57 95 -28 26 7 26 26 19 4 26 2 48 26 23 43 0.01 -106 0 0 26 8 2 11 0 16.5 57 95 -27 26 2 12 26 13 51 25 57 34 26 18 30 0.01 -105 0 0 26 2 22 11 0 21.5 58 96 -26 25 56 32 26 8 11 25 51 53 26 12 50 0.01 -104 0 0 25 56 15 11 0 26.5 59 96 -25 25 50 25 26 2 5 25 45 46 26 6 44 0.01 -103 0 0 25 49 41 11 0 31.5 60 97 -24 25 43 51 25 55 31 25 39 11 26 0 11 0.01 -102 0 0 25 42 41 11 0 36.7 61 97 -24 25 36 50 25 48 31 25 32 10 25 53 11 0.01 -101 0 0 25 35 13 11 0 41.9 62 97 -23 25 29 22 25 41 4 25 24 42 25 45 44 0.01 -100 0 0 25 27 19 11 0 47.1 63 98 -22 25 21 27 25 33 11 25 16 47 25 37 51 0.01 - 99 0 0 25 18 58 11 0 52.4 64 98 -21 25 13 6 25 24 50 25 8 25 25 29 30 0.01 - 98 0 0 25 10 10 11 0 57.8 65 99 -20 25 4 17 25 16 2 24 59 36 25 20 43 0.01 - 97 0 0 25 0 55 11 1 3.2 66 99 -19 24 55 2 25 6 48 24 50 20 25 11 29 0.01 - 96 0 0 24 51 13 11 1 8.7 67 99 -18 24 45 19 24 57 6 24 40 37 25 1 48 0.01 - 95 0 0 24 41 3 11 1 14.2 68 100 -17 24 35 9 24 46 57 24 30 27 24 51 40 0.01 - 94 0 0 24 30 27 11 1 19.8 69 100 -16 24 24 33 24 36 22 24 19 50 24 41 4 0.01 - 93 0 0 24 19 24 11 1 25.4 70 101 -15 24 13 29 24 25 19 24 8 46 24 30 2 0.01 - 92 0 0 24 7 53 11 1 31.1 71 101 -14 24 1 58 24 13 49 23 57 14 24 18 33 0.01 - 91 0 0 23 55 56 11 1 36.8 72 101 -14 23 50 0 24 1 52 23 45 16 24 6 36 0.01 - 90 0 0 23 43 31 11 1 42.6 72 102 -13 23 37 34 23 49 28 23 32 50 23 54 12 0.01 - 89 0 0 23 30 39 11 1 48.5 73 102 -12 23 24 42 23 36 37 23 19 57 23 41 22 0.01 - 88 0 0 23 17 20 11 1 54.4 74 103 -11 23 11 22 23 23 18 23 6 37 23 28 4 0.01 - 87 0 0 23 3 34 11 2 0.3 75 103 -10 22 57 36 23 9 33 22 52 50 23 14 19 0.01 - 86 0 0 22 49 21 11 2 6.3 76 103 -9 22 43 22 22 55 20 22 38 35 23 0 7 0.01 - 85 0 0 22 34 41 11 2 12.3 77 104 -8 22 28 41 22 40 41 22 23 54 22 45 28 0.01 - 84 0 0 22 19 33 11 2 18.4 78 104 -7 22 13 32 22 25 34 22 8 45 22 30 22 0.01 - 83 0 0 22 3 59 11 2 24.5 79 104 -6 21 57 57 22 10 0 21 53 9 22 14 48 0.01 - 82 0 0 21 47 57 11 2 30.7 80 104 -5 21 41 55 21 54 0 21 37 6 21 58 48 0.01 - 81 0 0 21 31 29 11 2 36.9 81 105 -4 21 25 26 21 37 32 21 20 37 21 42 21 0.01 - 80 0 0 21 14 34 11 2 43.2 82 105 -3 21 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27 -13 49 10 -13 26 24 -0.02 - 2 0 0 -14 3 16 11 9 27.0 12 293 75 -14 9 35 -13 56 57 -14 14 38 -13 51 54 -0.02 - 1 0 0 -14 28 23 11 9 28.3 11 293 76 -14 34 42 -14 22 5 -14 39 44 -14 17 3 -0.02 0 0 0 -14 53 9 11 9 29.5 10 293 76 -14 59 27 -14 46 52 -15 4 28 -14 41 51 -0.02 1 0 0 -15 17 34 11 9 30.6 9 293 76 -15 23 51 -15 11 17 -15 28 51 -15 6 16 -0.02 2 0 0 -15 41 36 11 9 31.5 8 292 77 -15 47 52 -15 35 20 -15 52 52 -15 30 20 -0.02 3 0 0 -16 5 15 11 9 32.3 7 292 77 -16 11 31 -15 59 0 -16 16 30 -15 54 1 -0.02 4 0 0 -16 28 32 11 9 33.0 6 292 77 -16 34 47 -16 22 18 -16 39 46 -16 17 19 -0.03 5 0 0 -16 51 26 11 9 33.6 5 291 77 -16 57 40 -16 45 12 -17 2 38 -16 40 14 -0.03 6 0 0 -17 13 57 11 9 34.1 4 291 77 -17 20 10 -17 7 43 -17 25 7 -17 2 46 -0.04 7 0 0 -17 36 3 11 9 34.4 3 291 77 -17 42 16 -17 29 51 -17 47 13 -17 24 54 -0.05 8 0 0 -17 57 46 11 9 34.7 2 291 77 -18 3 58 -17 51 35 -18 8 54 -17 46 38 -0.08 9 0 0 -18 19 5 11 9 34.8 1 290 76 -18 25 16 -18 12 55 -18 30 12 -18 7 59 -0.23 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1353-01080-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 07 03.4096 DE: +19 01 58.573 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 07 03.4096 DE: +19 01 58.573 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 9.3 * B mag [mag]: 10.4 * Diameter [mas]: 0.30 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1395) Aribeda asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.009 distance from Earth [AU]: 3.12700 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#48 date of fit: 2023 Feb 11 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): 0.021", 0.003", 104.614° remarks: * orbital elements for (1395)Aribeda : Mean anomaly = 86.9516385952 deg Arg. of pericenter = 108.6121568339 deg Long. of node = 244.7543580184 deg Inclination = 8.6628008297 deg Eccentricity = 0.0665952083 Semimajor axis = 3.2051317870 AU Perihelion dist = 2.9916853682 AU Mag: H = 11.53, G = 0.15 Epoch of elements : MJD 60587.46077880 TDT (2024 Oct 04.4608) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#482023Feb11,1.22,2024,10,4,11.058759,-0.001210,-0.004094,9.352234,-3.264511,-0.005814,0.000660,0.000000,0.000000 -72.3858,18.9958,11.26,-4.63,False TYC 1353-01080-1,7.11761374,19.0329370,10.39,9.30,8.71,0.3,0,,7.14173358,18.9957944,8.18,8.31,0,0,0 1395,Aribeda,17.48,21.402,3.1270,0,0,1.855,-9.18,,1.6,0 0,86.8725,2024,10,4,108.6122,244.7544,8.6628,0.06660,3.20513,2.99169,11.53,5.0,0.15 1.399,0.0213,0.0033,105,0.0037,Known errors,1.10,0,-1,-1 20241004_1080-1,60140.61 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org