IOTA/IOTA-ES occultation update for (1259) Ogyalla / UCAC4 560-012481 event on 2024 Sep 21, 00:27 UT Visible from Summary ------- On 2024 Sep 21 UT, the 34.272 km diameter asteroid (1259) Ogyalla will occult a 11.7 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.07 mag to 16.72 mag (the magnitude of the asteroid) for at most 4.460 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 Sep 21, 00:14 - 2024 Sep 21, 00:41 * geocentric midpoint of event [JD]: 2460574.51942287 * magnitude of target star: 11.66 * magnitude drop [mag]: 5.07 * estimated maximum duration [s]: 4.460 * Moon: 87 % sunlit, 36° distance * Sun: 102° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 37 * 1 sigma uncertainty interval [path widths]: +/- 0.27 * 1 sigma uncertainty interval [seconds]: +/- 4.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.004", 83°) * approx speed of asteroid's shadow [km/s]: 7.6796 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 560-012481 by 1259 Ogyalla on 2024 Sep 21 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 - 7 0 0 -26 59 43 0 15 5.0 0 65 -64 -27 10 37 -26 48 50 -27 16 24 -26 43 4 .... - 6 0 0 -26 34 39 0 15 5.1 1 65 -64 -26 45 34 -26 23 46 -26 51 21 -26 18 0 0.08 - 5 0 0 -26 9 24 0 15 5.6 2 64 -64 -26 20 19 -25 58 30 -26 26 6 -25 52 43 0.21 - 4 0 0 -25 43 57 0 15 6.3 3 64 -65 -25 54 52 -25 33 3 -26 0 40 -25 27 16 0.26 - 3 0 0 -25 18 20 0 15 7.3 4 63 -65 -25 29 16 -25 7 25 -25 35 3 -25 1 39 0.28 - 2 0 0 -24 52 33 0 15 8.5 5 63 -66 -25 3 29 -24 41 38 -25 9 17 -24 35 51 0.30 - 1 0 0 -24 26 36 0 15 10.1 6 62 -66 -24 37 33 -24 15 41 -24 43 21 -24 9 54 0.31 0 0 0 -24 0 31 0 15 11.9 7 62 -66 -24 11 28 -23 49 35 -24 17 16 -23 43 48 0.31 1 0 0 -23 34 18 0 15 14.0 8 62 -66 -23 45 14 -23 23 22 -23 51 3 -23 17 34 0.32 2 0 0 -23 7 57 0 15 16.4 9 61 -66 -23 18 53 -22 57 0 -23 24 42 -22 51 13 0.32 3 0 0 -22 41 28 0 15 19.1 10 61 -66 -22 52 26 -22 30 32 -22 58 14 -22 24 45 0.33 4 0 0 -22 14 54 0 15 22.1 11 60 -66 -22 25 51 -22 3 58 -22 31 40 -21 58 10 0.33 5 0 0 -21 48 14 0 15 25.4 12 60 -66 -21 59 11 -21 37 18 -22 5 0 -21 31 30 0.33 6 0 0 -21 21 29 0 15 29.0 13 60 -66 -21 32 26 -21 10 33 -21 38 15 -21 4 45 0.34 7 0 0 -20 54 40 0 15 32.9 14 59 -66 -21 5 37 -20 43 44 -21 11 26 -20 37 56 0.34 8 0 0 -20 27 47 0 15 37.1 15 59 -66 -20 38 44 -20 16 51 -20 44 33 -20 11 4 0.34 9 0 0 -20 0 52 0 15 41.6 17 58 -66 -20 11 49 -19 49 56 -20 17 37 -19 44 8 0.34 10 0 0 -19 33 54 0 15 46.5 18 58 -66 -19 44 51 -19 22 58 -19 50 39 -19 17 11 0.34 11 0 0 -19 6 55 0 15 51.6 19 58 -65 -19 17 52 -18 56 0 -19 23 40 -18 50 12 0.34 12 0 0 -18 39 56 0 15 57.0 20 57 -65 -18 50 52 -18 29 0 -18 56 40 -18 23 13 0.35 13 0 0 -18 12 56 0 16 2.7 21 57 -65 -18 23 52 -18 2 1 -18 29 40 -17 56 14 0.35 14 0 0 -17 45 58 0 16 8.8 22 57 -64 -17 56 54 -17 35 3 -18 2 41 -17 29 16 0.35 15 0 0 -17 19 1 0 16 15.1 23 56 -64 -17 29 57 -17 8 7 -17 35 44 -17 2 20 0.35 16 0 0 -16 52 7 0 16 21.8 24 56 -63 -17 3 2 -16 41 13 -17 8 49 -16 35 27 0.35 17 0 0 -16 25 16 0 16 28.7 25 55 -63 -16 36 11 -16 14 23 -16 41 58 -16 8 37 0.35 18 0 0 -15 58 29 0 16 36.0 26 55 -62 -16 9 23 -15 47 36 -16 15 10 -15 41 50 0.35 19 0 0 -15 31 47 0 16 43.5 27 55 -61 -15 42 41 -15 20 55 -15 48 27 -15 15 9 0.35 20 0 0 -15 5 11 0 16 51.4 28 54 -61 -15 16 4 -14 54 19 -15 21 50 -14 48 34 0.35 21 0 0 -14 38 41 0 16 59.5 29 54 -60 -14 49 33 -14 27 49 -14 55 19 -14 22 5 0.35 22 0 0 -14 12 18 0 17 8.0 30 53 -59 -14 23 10 -14 1 27 -14 28 55 -13 55 43 0.35 23 0 0 -13 46 3 0 17 16.7 31 53 -58 -13 56 54 -13 35 13 -14 2 39 -13 29 29 0.36 24 0 0 -13 19 57 0 17 25.7 32 53 -58 -13 30 47 -13 9 8 -13 36 32 -13 3 24 0.36 25 0 0 -12 54 1 0 17 35.0 34 52 -57 -13 4 50 -12 43 12 -13 10 34 -12 37 29 0.36 26 0 0 -12 28 14 0 17 44.6 35 52 -56 -12 39 3 -12 17 27 -12 44 47 -12 11 44 0.36 27 0 0 -12 2 39 0 17 54.4 36 51 -55 -12 13 27 -11 51 52 -12 19 11 -11 46 10 0.36 28 0 0 -11 37 16 0 18 4.6 37 51 -54 -11 48 3 -11 26 30 -11 53 46 -11 20 48 0.36 29 0 0 -11 12 5 0 18 14.9 38 51 -53 -11 22 51 -11 1 20 -11 28 34 -10 55 39 0.36 30 0 0 -10 47 8 0 18 25.6 39 50 -52 -10 57 53 -10 36 24 -11 3 35 -10 30 42 0.36 31 0 0 -10 22 24 0 18 36.5 40 50 -52 -10 33 8 -10 11 41 -10 38 50 -10 6 0 0.36 32 0 0 - 9 57 56 0 18 47.6 41 49 -51 -10 8 39 - 9 47 13 -10 14 20 - 9 41 33 0.36 33 0 0 - 9 33 42 0 18 59.0 42 49 -50 - 9 44 24 - 9 23 1 - 9 50 5 - 9 17 21 0.36 34 0 0 - 9 9 45 0 19 10.6 43 48 -49 - 9 20 26 - 8 59 5 - 9 26 6 - 8 53 26 0.36 35 0 0 - 8 46 5 0 19 22.5 44 47 -48 - 8 56 45 - 8 35 25 - 9 2 24 - 8 29 47 0.37 36 0 0 - 8 22 42 0 19 34.6 45 47 -47 - 8 33 21 - 8 12 4 - 8 39 0 - 8 6 26 0.37 37 0 0 - 7 59 37 0 19 46.9 46 46 -46 - 8 10 15 - 7 49 0 - 8 15 53 - 7 43 22 0.37 38 0 0 - 7 36 51 0 19 59.4 47 46 -45 - 7 47 28 - 7 26 15 - 7 53 5 - 7 20 38 0.37 39 0 0 - 7 14 24 0 20 12.1 48 45 -44 - 7 25 0 - 7 3 49 - 7 30 37 - 6 58 13 0.37 40 0 0 - 6 52 17 0 20 25.0 49 44 -43 - 7 2 52 - 6 41 43 - 7 8 28 - 6 36 8 0.37 41 0 0 - 6 30 31 0 20 38.1 50 44 -42 - 6 41 4 - 6 19 58 - 6 46 40 - 6 14 23 0.37 42 0 0 - 6 9 5 0 20 51.4 51 43 -41 - 6 19 38 - 5 58 34 - 6 25 13 - 5 52 59 0.37 43 0 0 - 5 48 1 0 21 4.9 52 42 -40 - 5 58 33 - 5 37 31 - 6 4 8 - 5 31 57 0.37 44 0 0 - 5 27 20 0 21 18.5 53 41 -39 - 5 37 50 - 5 16 50 - 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0 5 7 0 25 48 0.38 111 0 0 - 0 0 53 0 37 16.1 40 300 32 - 0 11 1 0 9 13 - 0 16 23 0 14 35 0.38 112 0 0 - 0 12 35 0 37 26.7 39 299 33 - 0 22 43 - 0 2 28 - 0 28 6 0 2 54 0.38 113 0 0 - 0 24 45 0 37 37.0 38 299 34 - 0 34 54 - 0 14 36 - 0 40 17 - 0 9 14 0.38 114 0 0 - 0 37 21 0 37 47.2 37 299 35 - 0 47 31 - 0 27 12 - 0 52 54 - 0 21 49 0.38 115 0 0 - 0 50 24 0 37 57.1 36 298 36 - 1 0 34 - 0 40 14 - 1 5 58 - 0 34 51 0.38 116 0 0 - 1 3 53 0 38 6.8 35 298 37 - 1 14 5 - 0 53 42 - 1 19 29 - 0 48 19 0.38 117 0 0 - 1 17 49 0 38 16.2 34 298 38 - 1 28 1 - 1 7 37 - 1 33 26 - 1 2 13 0.38 118 0 0 - 1 32 10 0 38 25.4 33 298 39 - 1 42 23 - 1 21 58 - 1 47 49 - 1 16 34 0.38 119 0 0 - 1 46 57 0 38 34.4 32 298 40 - 1 57 12 - 1 36 44 - 2 2 37 - 1 31 19 0.38 120 0 0 - 2 2 10 0 38 43.1 31 297 41 - 2 12 25 - 1 51 56 - 2 17 51 - 1 46 30 0.38 121 0 0 - 2 17 47 0 38 51.6 30 297 42 - 2 28 3 - 2 7 32 - 2 33 30 - 2 2 6 0.38 122 0 0 - 2 33 49 0 38 59.8 29 297 43 - 2 44 6 - 2 23 33 - 2 49 34 - 2 18 7 0.38 123 0 0 - 2 50 16 0 39 7.7 28 297 44 - 3 0 34 - 2 39 59 - 3 6 2 - 2 34 32 0.37 124 0 0 - 3 7 7 0 39 15.4 27 297 45 - 3 17 25 - 2 56 48 - 3 22 54 - 2 51 21 0.37 125 0 0 - 3 24 21 0 39 22.8 26 297 46 - 3 34 40 - 3 14 2 - 3 40 9 - 3 8 34 0.37 126 0 0 - 3 41 58 0 39 30.0 25 296 47 - 3 52 19 - 3 31 38 - 3 57 48 - 3 26 10 0.37 127 0 0 - 3 59 58 0 39 36.8 24 296 48 - 4 10 20 - 3 49 37 - 4 15 50 - 3 44 8 0.37 128 0 0 - 4 18 21 0 39 43.4 23 296 49 - 4 28 44 - 4 7 59 - 4 34 14 - 4 2 30 0.37 129 0 0 - 4 37 6 0 39 49.7 22 296 50 - 4 47 30 - 4 26 43 - 4 53 1 - 4 21 13 0.37 130 0 0 - 4 56 12 0 39 55.8 21 296 51 - 5 6 37 - 4 45 48 - 5 12 9 - 4 40 18 0.37 131 0 0 - 5 15 40 0 40 1.5 20 296 52 - 5 26 6 - 5 5 15 - 5 31 38 - 4 59 44 0.37 132 0 0 - 5 35 28 0 40 7.0 19 295 53 - 5 45 55 - 5 25 2 - 5 51 28 - 5 19 31 0.37 133 0 0 - 5 55 37 0 40 12.1 18 295 54 - 6 6 5 - 5 45 10 - 6 11 38 - 5 39 38 0.37 134 0 0 - 6 16 5 0 40 17.0 16 295 55 - 6 26 34 - 6 5 37 - 6 32 8 - 6 0 5 0.37 135 0 0 - 6 36 53 0 40 21.5 15 295 56 - 6 47 23 - 6 26 24 - 6 52 57 - 6 20 51 0.37 136 0 0 - 6 58 0 0 40 25.8 14 295 57 - 7 8 31 - 6 47 30 - 7 14 5 - 6 41 56 0.37 137 0 0 - 7 19 25 0 40 29.8 13 295 58 - 7 29 56 - 7 8 54 - 7 35 31 - 7 3 20 0.37 138 0 0 - 7 41 7 0 40 33.4 12 295 59 - 7 51 40 - 7 30 35 - 7 57 16 - 7 25 1 0.37 139 0 0 - 8 3 7 0 40 36.8 11 294 60 - 8 13 41 - 7 52 34 - 8 19 17 - 7 46 59 0.37 140 0 0 - 8 25 24 0 40 39.9 10 294 61 - 8 35 58 - 8 14 50 - 8 41 35 - 8 9 14 0.37 141 0 0 - 8 47 57 0 40 42.6 9 294 61 - 8 58 32 - 8 37 22 - 9 4 9 - 8 31 46 0.37 142 0 0 - 9 10 45 0 40 45.1 8 294 62 - 9 21 21 - 9 0 9 - 9 26 59 - 8 54 33 0.37 143 0 0 - 9 33 48 0 40 47.2 7 294 63 - 9 44 26 - 9 23 12 - 9 50 4 - 9 17 35 0.37 144 0 0 - 9 57 6 0 40 49.0 6 294 64 -10 7 44 - 9 46 28 -10 13 23 - 9 40 51 0.37 145 0 0 -10 20 38 0 40 50.6 5 293 65 -10 31 17 -10 9 59 -10 36 56 -10 4 21 0.37 146 0 0 -10 44 22 0 40 51.8 4 293 65 -10 55 2 -10 33 43 -11 0 42 -10 28 5 0.38 147 0 0 -11 8 20 0 40 52.7 3 293 66 -11 19 1 -10 57 40 -11 24 41 -10 52 1 0.38 148 0 0 -11 32 29 0 40 53.3 2 293 67 -11 43 11 -11 21 48 -11 48 51 -11 16 9 0.39 149 0 0 -11 56 50 0 40 53.6 1 293 67 -12 7 32 -11 46 8 -12 13 13 -11 40 28 0.46 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 560-012481 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 58 48.1737 DE: +21 58 58.857 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 58 48.1739 DE: +21 58 58.857 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 12.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1259) Ogyalla asteroid class: approx. diameter [km]: 34 approx. diameter ["]: 0.015 distance from Earth [AU]: 3.13150 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.014", 0.004", 82.826° remarks: * orbital elements for (1259)Ogyalla : Mean anomaly = 196.1193062735 deg Arg. of pericenter = 151.7947011635 deg Long. of node = 74.9775893959 deg Inclination = 2.3796696733 deg Eccentricity = 0.1228804308 Semimajor axis = 3.1160323552 AU Perihelion dist = 2.7331329570 AU Mag: H = 10.65, G = 0.15 Epoch of elements : MJD 60574.01942229 TDT (2024 Sep 21.0194) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Feb11,4.46,2024,9,21,0.466149,0.049958,-0.357039,4.291338,0.610585,-0.005648,-0.000569,0.000000,0.000000 67.6973,22.0216,171.27,0.59,False UCAC4 560-012481,4.98004823,21.9830157,12.13,11.66,11.41,0.0,0,,5.00477093,22.0216191,5.07,4.88,0,0,0 1259,Ogyalla,16.72,34.272,3.1315,0,0,0.867,1.71,,2.2,0 0,195.9366,2024,9,20,151.7947,74.9776,2.3797,0.12288,3.11603,2.73313,10.65,5.0,0.15 1.265,0.0140,0.0040,83,0.0040,Known errors,1.05,0,-1,-1 20240921_012481,60140.58 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:48 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org