IOTA/IOTA-ES occultation update for (523706) 2014 HF200 / UCAC4 302-091616 event on 2023 Jul 03, 21:00 UT Visible from Summary ------- On 2023 Jul 03 UT, the 218.7 km diameter asteroid (523706) 2014 HF200 will occult a 13.7 mag star in the constellation Scorpius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.90 mag to 21.59 mag (the magnitude of the asteroid) for at most 11.190 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: 4 * date and approx. time of event: 2023 Jul 03, 20:57 - 2023 Jul 03, 21:08 * geocentric midpoint of event [JD]: 2460129.37710050 * magnitude of target star: 13.69 * magnitude drop [mag]: 7.90 * estimated maximum duration [s]: 11.190 * Moon: 99 % sunlit, 36° distance * Sun: 149° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 222 * 1 sigma uncertainty interval [path widths]: +/- 16.76 * 1 sigma uncertainty interval [seconds]: +/- 727.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.535, +/- 0.199) * 1 sigma uncertainty ellipse (major, minor, PA): (0.553", 0.140", 105°) * approx speed of asteroid's shadow [km/s]: 19.5408 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 302-091616 by 523706 2014 HF200 on 2023 Jul 3 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 - 68 0 0 19 19 25 21 8 22.5 1 122 27 .. .. .. 18 8 30 .. .. .. -21 48 17 .... - 67 0 0 18 43 55 21 8 22.4 2 122 26 19 55 15 17 32 55 .. .. .. -22 26 47 -0.03 - 66 0 0 18 8 9 21 8 22.1 3 123 25 19 19 34 16 57 4 .. .. .. -23 5 17 -0.09 - 65 0 0 17 32 8 21 8 21.8 4 123 24 18 43 37 16 20 58 .. .. .. -23 43 44 -0.12 - 64 0 0 16 55 52 21 8 21.3 5 123 23 18 7 25 15 44 39 .. .. .. -24 22 9 -0.14 - 63 0 0 16 19 23 21 8 20.6 6 123 22 17 31 0 15 8 7 .. .. .. -25 0 29 -0.15 - 62 0 0 15 42 43 21 8 19.9 7 124 20 16 54 22 14 31 24 .. .. .. -25 38 43 -0.15 - 61 0 0 15 5 52 21 8 19.0 8 124 19 16 17 33 13 54 30 .. .. .. -26 16 51 -0.16 - 60 0 0 14 28 51 21 8 17.9 10 124 18 15 40 34 13 17 28 .. .. .. -26 54 50 -0.16 - 59 0 0 13 51 41 21 8 16.8 11 125 17 15 3 25 12 40 17 .. .. .. -27 32 39 -0.17 - 58 0 0 13 14 24 21 8 15.5 12 125 16 14 26 9 12 3 0 .. .. .. -28 10 18 -0.17 - 57 0 0 12 37 2 21 8 14.0 13 125 15 13 48 46 11 25 37 .. .. .. -28 47 44 -0.17 - 56 0 0 11 59 34 21 8 12.5 14 125 14 13 11 18 10 48 10 .. .. .. -29 24 57 -0.17 - 55 0 0 11 22 2 21 8 10.8 15 125 13 12 33 45 10 10 39 .. .. .. -30 1 56 -0.17 - 54 0 0 10 44 28 21 8 8.9 17 126 11 11 56 10 9 33 7 .. .. .. -30 38 40 -0.18 - 53 0 0 10 6 53 21 8 7.0 18 126 10 11 18 33 8 55 34 .. .. .. -31 15 7 -0.18 - 52 0 0 9 29 18 21 8 4.9 19 126 9 10 40 55 8 18 1 .. .. .. -31 51 17 -0.18 - 51 0 0 8 51 44 21 8 2.6 20 126 8 10 3 17 7 40 30 .. .. .. -32 27 8 -0.18 - 50 0 0 8 14 12 21 8 0.3 21 126 7 9 25 42 7 3 2 .. .. .. -33 2 39 -0.18 - 49 0 0 7 36 44 21 7 57.8 22 127 6 8 48 10 6 25 38 .. .. .. -33 37 51 -0.18 - 48 0 0 6 59 21 21 7 55.2 23 127 5 8 10 42 5 48 19 .. .. .. -34 12 41 -0.18 - 47 0 0 6 22 3 21 7 52.5 25 127 3 7 33 20 5 11 7 .. .. .. -34 47 9 -0.18 - 46 0 0 5 44 53 21 7 49.6 26 127 2 6 56 4 4 34 3 .. .. .. -35 21 14 -0.18 - 45 0 0 5 7 52 21 7 46.6 27 127 1 6 18 56 3 57 7 .. .. .. -35 54 55 -0.18 - 44 0 0 4 30 59 21 7 43.5 28 127 0 5 41 57 3 20 21 .. .. .. -36 28 12 -0.18 - 43 0 0 3 54 18 21 7 40.3 29 127 -1 5 5 9 2 43 46 .. .. .. -37 1 4 -0.18 - 42 0 0 3 17 48 21 7 37.0 30 128 -2 4 28 32 2 7 23 .. .. .. -37 33 31 -0.18 - 41 0 0 2 41 30 21 7 33.6 32 128 -3 3 52 7 1 31 13 .. .. .. -38 5 31 -0.18 - 40 0 0 2 5 27 21 7 30.0 33 128 -5 3 15 55 0 55 18 .. .. .. -38 37 5 -0.18 - 39 0 0 1 29 38 21 7 26.4 34 128 -6 2 39 58 0 19 37 .. .. .. -39 8 12 -0.18 - 38 0 0 0 54 5 21 7 22.6 35 128 -7 2 4 16 - 0 15 47 .. .. .. -39 38 51 -0.18 - 37 0 0 0 18 49 21 7 18.8 36 128 -8 1 28 51 - 0 50 55 .. .. .. -40 9 2 -0.18 - 36 0 0 - 0 16 10 21 7 14.9 37 128 -9 0 53 43 - 1 25 44 .. .. .. -40 38 45 -0.18 - 35 0 0 - 0 50 50 21 7 10.8 38 128 -10 0 18 53 - 2 0 15 50 13 27 -41 8 0 -0.18 - 34 0 0 - 1 25 11 21 7 6.7 39 128 -11 - 0 15 37 - 2 34 25 49 25 33 -41 36 45 -0.18 - 33 0 0 - 1 59 11 21 7 2.5 41 129 -12 - 0 49 48 - 3 8 16 48 37 45 -42 5 1 -0.18 - 32 0 0 - 2 32 50 21 6 58.2 42 129 -14 - 1 23 38 - 3 41 45 47 50 5 -42 32 49 -0.18 - 31 0 0 - 3 6 8 21 6 53.8 43 129 -15 - 1 57 6 - 4 14 52 47 2 37 -43 0 6 -0.18 - 30 0 0 - 3 39 3 21 6 49.3 44 129 -16 - 2 30 12 - 4 47 36 46 15 21 -43 26 54 -0.18 - 29 0 0 - 4 11 35 21 6 44.8 45 129 -17 - 3 2 54 - 5 19 57 45 28 22 -43 53 13 -0.18 - 28 0 0 - 4 43 42 21 6 40.2 46 129 -18 - 3 35 13 - 5 51 54 44 41 41 -44 19 1 -0.18 - 27 0 0 - 5 15 26 21 6 35.5 47 129 -19 - 4 7 8 - 6 23 26 43 55 21 -44 44 20 -0.18 - 26 0 0 - 5 46 44 21 6 30.8 48 130 -20 - 4 38 38 - 6 54 34 43 9 24 -45 9 9 -0.18 - 25 0 0 - 6 17 37 21 6 26.0 49 130 -21 - 5 9 42 - 7 25 15 42 23 52 -45 33 29 -0.18 - 24 0 0 - 6 48 3 21 6 21.2 50 130 -22 - 5 40 19 - 7 55 30 41 38 47 -45 57 18 -0.18 - 23 0 0 - 7 18 3 21 6 16.3 51 130 -23 - 6 10 31 - 8 25 18 40 54 10 -46 20 38 -0.18 - 22 0 0 - 7 47 35 21 6 11.3 53 130 -25 - 6 40 15 - 8 54 39 40 10 4 -46 43 28 -0.18 - 21 0 0 - 8 16 40 21 6 6.3 54 130 -26 - 7 9 31 - 9 23 32 39 26 30 -47 5 49 -0.18 - 20 0 0 - 8 45 17 21 6 1.2 55 131 -27 - 7 38 20 - 9 51 57 38 43 30 -47 27 41 -0.18 - 19 0 0 - 9 13 25 21 5 56.1 56 131 -28 - 8 6 40 -10 19 54 38 1 4 -47 49 3 -0.18 - 18 0 0 - 9 41 5 21 5 51.0 57 131 -29 - 8 34 32 -10 47 22 37 19 14 -48 9 56 -0.18 - 17 0 0 -10 8 15 21 5 45.8 58 131 -30 - 9 1 54 -11 14 21 36 38 2 -48 30 21 -0.18 - 16 0 0 -10 34 56 21 5 40.6 59 132 -31 - 9 28 47 -11 40 51 35 57 29 -48 50 17 -0.18 - 15 0 0 -11 1 8 21 5 35.3 60 132 -32 - 9 55 10 -12 6 51 35 17 35 -49 9 44 -0.18 - 14 0 0 -11 26 50 21 5 30.1 61 133 -33 -10 21 3 -12 32 21 34 38 22 -49 28 43 -0.18 - 13 0 0 -11 52 1 21 5 24.8 62 133 -34 -10 46 26 -12 57 21 33 59 50 -49 47 14 -0.18 - 12 0 0 -12 16 42 21 5 19.4 63 133 -35 -11 11 19 -13 21 51 33 22 1 -50 5 17 -0.18 - 11 0 0 -12 40 53 21 5 14.1 64 134 -36 -11 35 41 -13 45 50 32 44 54 -50 22 53 -0.18 - 10 0 0 -13 4 33 21 5 8.7 65 135 -37 -11 59 32 -14 9 19 32 8 31 -50 40 1 -0.18 - 9 0 0 -13 27 42 21 5 3.3 66 135 -38 -12 22 52 -14 32 17 31 32 52 -50 56 42 -0.18 - 8 0 0 -13 50 20 21 4 57.9 66 136 -39 -12 45 41 -14 54 44 30 57 59 -51 12 56 -0.18 - 7 0 0 -14 12 27 21 4 52.5 67 137 -40 -13 7 59 -15 16 40 30 23 50 -51 28 44 -0.18 - 6 0 0 -14 34 3 21 4 47.1 68 138 -41 -13 29 46 -15 38 6 29 50 27 -51 44 5 -0.18 - 5 0 0 -14 55 8 21 4 41.6 69 138 -42 -13 51 1 -15 59 0 29 17 51 -51 59 0 -0.18 - 4 0 0 -15 15 41 21 4 36.2 70 140 -43 -14 11 45 -16 19 23 28 46 1 -52 13 30 -0.18 - 3 0 0 -15 35 43 21 4 30.7 71 141 -44 -14 31 57 -16 39 15 28 14 57 -52 27 34 -0.18 - 2 0 0 -15 55 14 21 4 25.3 72 142 -45 -14 51 38 -16 58 36 27 44 41 -52 41 12 -0.18 - 1 0 0 -16 14 13 21 4 19.8 73 144 -46 -15 10 47 -17 17 25 27 15 13 -52 54 26 -0.18 0 0 0 -16 32 41 21 4 14.4 73 145 -47 -15 29 24 -17 35 43 26 46 32 -53 7 14 -0.18 1 0 0 -16 50 37 21 4 8.9 74 147 -48 -15 47 30 -17 53 30 26 18 38 -53 19 38 -0.18 2 0 0 -17 8 2 21 4 3.4 75 149 -49 -16 5 4 -18 10 46 25 51 33 -53 31 38 -0.18 3 0 0 -17 24 55 21 3 58.0 76 151 -50 -16 22 7 -18 27 31 25 25 15 -53 43 14 -0.18 4 0 0 -17 41 18 21 3 52.5 76 154 -51 -16 38 38 -18 43 44 24 59 46 -53 54 26 -0.18 5 0 0 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16 -15 10 21 30 49 17 -51 25 3 -0.19 79 0 0 -13 43 24 20 58 16.0 27 243 -58 -12 38 33 -14 48 1 31 24 33 -51 9 4 -0.19 80 0 0 -13 20 20 20 58 13.4 26 243 -57 -12 15 18 -14 25 8 32 0 35 -50 52 38 -0.19 81 0 0 -12 56 45 20 58 10.8 25 243 -56 -11 51 30 -14 1 44 .. .. .. -50 35 45 -0.19 82 0 0 -12 32 37 20 58 8.3 24 243 -55 -11 27 10 -13 37 48 .. .. .. -50 18 23 -0.19 83 0 0 -12 7 57 20 58 5.9 23 243 -54 -11 2 19 -13 13 20 .. .. .. -50 0 34 -0.19 84 0 0 -11 42 45 20 58 3.6 22 242 -53 -10 36 55 -12 48 20 .. .. .. -49 42 17 -0.19 85 0 0 -11 17 3 20 58 1.4 21 242 -52 -10 11 0 -12 22 49 .. .. .. -49 23 31 -0.19 86 0 0 -10 50 48 20 57 59.3 19 242 -51 - 9 44 34 -11 56 47 .. .. .. -49 4 17 -0.19 87 0 0 -10 24 3 20 57 57.3 18 242 -49 - 9 17 36 -11 30 14 .. .. .. -48 44 33 -0.19 88 0 0 - 9 56 47 20 57 55.4 17 242 -48 - 8 50 8 -11 3 10 .. .. .. -48 24 21 -0.19 89 0 0 - 9 29 1 20 57 53.6 16 242 -47 - 8 22 8 -10 35 36 .. .. .. -48 3 39 -0.19 90 0 0 - 9 0 44 20 57 51.8 15 241 -46 - 7 53 39 -10 7 31 .. .. .. -47 42 27 -0.19 91 0 0 - 8 31 57 20 57 50.3 14 241 -45 - 7 24 40 - 9 38 57 .. .. .. -47 20 46 -0.19 92 0 0 - 8 2 40 20 57 48.8 13 241 -44 - 6 55 11 - 9 9 53 .. .. .. -46 58 34 -0.19 93 0 0 - 7 32 55 20 57 47.4 12 241 -43 - 6 25 13 - 8 40 20 .. .. .. -46 35 53 -0.19 94 0 0 - 7 2 41 20 57 46.1 11 241 -42 - 5 54 47 - 8 10 17 .. .. .. -46 12 41 -0.19 95 0 0 - 6 31 58 20 57 45.0 10 241 -41 - 5 23 52 - 7 39 47 .. .. .. -45 48 58 -0.19 96 0 0 - 6 0 48 20 57 44.0 9 241 -40 - 4 52 29 - 7 8 49 .. .. .. -45 24 45 -0.19 97 0 0 - 5 29 10 20 57 43.1 7 241 -38 - 4 20 40 - 6 37 23 .. .. .. -45 0 2 -0.19 98 0 0 - 4 57 6 20 57 42.3 6 241 -37 - 3 48 24 - 6 5 31 .. .. .. -44 34 47 -0.18 99 0 0 - 4 24 36 20 57 41.6 5 240 -36 - 3 15 41 - 5 33 12 .. .. .. -44 9 2 -0.18 100 0 0 - 3 51 40 20 57 41.1 4 240 -35 - 2 42 34 - 5 0 28 .. .. .. -43 42 46 -0.18 101 0 0 - 3 18 20 20 57 40.7 3 240 -34 - 2 9 2 - 4 27 19 .. .. .. -43 16 0 -0.17 102 0 0 - 2 44 35 20 57 40.4 2 240 -33 - 1 35 6 - 3 53 46 .. .. .. -42 48 43 -0.16 103 0 0 - 2 10 28 20 57 40.3 1 240 -32 - 1 0 48 - 3 19 49 .. .. .. -42 20 55 -0.11 Uncertainty in time = +/- 728 secs Prediction of 2022 Jun 15.2 Data for the target star ------------------------ * name: UCAC4 302-091616 * constellation : Scorpius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 32 33.2110 DE: -29 41 26.549 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 32 33.2110 DE: -29 41 26.549 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 13.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (523706) 2014 HF200 asteroid class: Centaur approx. diameter [km]: 219 approx. diameter ["]: 0.009 distance from Earth [AU]: 35.43780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#6 date of fit: 2021 Apr 14 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): 0.553", 0.140", 105.347° remarks: * orbital elements for (523706)2014 HF200 : Mean anomaly = 351.0093034030 deg Arg. of pericenter = 254.1068288715 deg Long. of node = 21.6351292225 deg Inclination = 9.7330000976 deg Eccentricity = 0.4158323966 Semimajor axis = 60.6380566716 AU Perihelion dist = 35.4227882378 AU Mag: H = 5.82, G = 0.15 Epoch of elements : MJD 60128.87527778 TDT (2023 Jul 03.8753) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#62021Apr14,11.19,2023,7,3,21.050412,0.038017,0.173686,-10.772864,2.364770,0.002996,0.000234,0.000001,0.000000 11.1280,-29.7417,-134.67,22.92,False UCAC4 302-091616,16.54255861,-29.6907081,0.00,13.69,0.00,0.0,0,,16.56742892,-29.7416741,7.90,0.00,0,0,0 523706,2014 HF200,21.59,218.7,35.4378,0,0,-0.205,0.58,,21.8 0,351.0075,2023,7,3,254.1068,21.6351,9.7330,0.41583,60.63806,35.42279,5.90,5.0,0.15 17.762,0.5533,0.1397,105,0.1426,Known errors,-1.00,-1,-1,-1 20230703_091616,59745.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Jun 15, 04:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org