IOTA/IOTA-ES occultation update for (1158) Luda / HIP 15338 event on 2024 Dec 05, 21:06 UT Visible from Summary ------- On 2024 Dec 05 UT, the 18.8998832411861 km diameter asteroid (1158) Luda will occult a 5.5 mag star in the constellation Perseus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.61 mag to 14.07 mag (the magnitude of the asteroid) for at most 2.190 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: 99 * date and approx. time of event: 2024 Dec 05, 20:54 - 2024 Dec 05, 21:18 * geocentric midpoint of event [JD]: 2460650.37932383 * magnitude of target star: 5.46 * magnitude drop [mag]: 8.61 * estimated maximum duration [s]: 2.190 * Moon: 21 % sunlit, 111° distance * Sun: 151° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 19 * 1 sigma uncertainty interval [path widths]: +/- 0.32 * 1 sigma uncertainty interval [seconds]: +/- 3.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.013) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.005", 69°) * approx speed of asteroid's shadow [km/s]: 8.7341 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 15338 (30 Per) by 1158 Luda on 2024 Dec 5 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 - 63 0 0 -11 33 53 21 18 9.7 0 45 15 -11 26 24 -11 41 21 -11 21 41 -11 46 4 .... - 62 0 0 -10 33 20 21 18 9.4 2 44 13 -10 25 48 -10 40 52 -10 21 3 -10 45 37 -0.20 - 61 0 0 - 9 31 43 21 18 8.6 3 44 12 - 9 24 8 - 9 39 18 - 9 19 20 - 9 44 5 -0.18 - 60 0 0 - 8 29 3 21 18 7.4 5 44 11 - 8 21 24 - 8 36 41 - 8 16 34 - 8 41 30 -0.18 - 59 0 0 - 7 25 22 21 18 5.7 6 44 9 - 7 17 41 - 7 33 3 - 7 12 49 - 7 37 55 -0.17 - 58 0 0 - 6 20 44 21 18 3.5 7 44 8 - 6 12 59 - 6 28 28 - 6 8 6 - 6 33 22 -0.17 - 57 0 0 - 5 15 11 21 18 0.8 9 44 7 - 5 7 23 - 5 22 58 - 5 2 28 - 5 27 53 -0.17 - 56 0 0 - 4 8 45 21 17 57.6 10 44 5 - 4 0 55 - 4 16 36 - 3 55 58 - 4 21 32 -0.17 - 55 0 0 - 3 1 31 21 17 53.8 12 44 4 - 2 53 38 - 3 9 24 - 2 48 39 - 3 14 23 -0.17 - 54 0 0 - 1 53 32 21 17 49.6 13 44 3 - 1 45 36 - 2 1 27 - 1 40 35 - 2 6 28 -0.17 - 53 0 0 - 0 44 51 21 17 44.8 15 44 1 - 0 36 52 - 0 52 49 - 0 31 50 - 0 57 50 -0.17 - 52 0 0 0 24 29 21 17 39.6 16 44 0 0 32 29 0 16 28 0 37 33 0 11 25 -0.16 - 51 0 0 1 34 22 21 17 33.8 18 44 -1 1 42 25 1 26 19 1 47 30 1 21 14 -0.16 - 50 0 0 2 44 44 21 17 27.4 19 44 -3 2 52 49 2 36 40 2 57 56 2 31 34 -0.16 - 49 0 0 3 55 33 21 17 20.6 21 44 -4 4 3 39 3 47 26 4 8 47 3 42 19 -0.16 - 48 0 0 5 6 42 21 17 13.3 22 44 -5 5 14 50 4 58 33 5 19 59 4 53 25 -0.16 - 47 0 0 6 18 7 21 17 5.5 24 44 -7 6 26 17 6 9 57 6 31 27 6 4 48 -0.16 - 46 0 0 7 29 44 21 16 57.2 25 44 -8 7 37 56 7 21 33 7 43 7 7 16 23 -0.17 - 45 0 0 8 41 29 21 16 48.4 27 45 -9 8 49 42 8 33 16 8 54 53 8 28 5 -0.17 - 44 0 0 9 53 16 21 16 39.2 29 45 -11 10 1 29 9 45 2 10 6 41 9 39 50 -0.17 - 43 0 0 11 5 0 21 16 29.5 30 45 -12 11 13 15 10 56 46 11 18 27 10 51 33 -0.17 - 42 0 0 12 16 37 21 16 19.5 32 45 -13 12 24 53 12 8 22 12 30 6 12 3 10 -0.17 - 41 0 0 13 28 3 21 16 9.0 33 46 -14 13 36 19 13 19 48 13 41 32 13 14 35 -0.17 - 40 0 0 14 39 13 21 15 58.2 34 46 -16 14 47 29 14 30 57 14 52 43 14 25 44 -0.17 - 39 0 0 15 50 2 21 15 47.0 36 46 -17 15 58 18 15 41 46 16 3 32 15 36 33 -0.17 - 38 0 0 17 0 26 21 15 35.4 37 47 -18 17 8 42 16 52 10 17 13 55 16 46 57 -0.17 - 37 0 0 18 10 20 21 15 23.6 39 47 -19 18 18 36 18 2 5 18 23 50 17 56 52 -0.17 - 36 0 0 19 19 42 21 15 11.5 40 48 -21 19 27 57 19 11 27 19 33 10 19 6 14 -0.17 - 35 0 0 20 28 26 21 14 59.1 42 48 -22 20 36 40 20 20 11 20 41 53 20 14 59 -0.17 - 34 0 0 21 36 29 21 14 46.5 43 49 -23 21 44 43 21 28 15 21 49 55 21 23 3 -0.17 - 33 0 0 22 43 47 21 14 33.7 45 50 -24 22 52 0 22 35 34 22 57 12 22 30 23 -0.17 - 32 0 0 23 50 18 21 14 20.7 46 50 -25 23 58 29 23 42 6 24 3 40 23 36 56 -0.17 - 31 0 0 24 55 57 21 14 7.6 47 51 -26 25 4 8 24 47 47 25 9 18 24 42 37 -0.18 - 30 0 0 26 0 43 21 13 54.3 49 52 -27 26 8 52 25 52 34 26 14 1 25 47 26 -0.18 - 29 0 0 27 4 32 21 13 40.9 50 52 -29 27 12 40 26 56 25 27 17 48 26 51 17 -0.18 - 28 0 0 28 7 23 21 13 27.5 51 53 -30 28 15 28 27 59 17 28 20 35 27 54 11 -0.18 - 27 0 0 29 9 12 21 13 14.0 52 54 -31 29 17 16 29 1 8 29 22 22 28 56 3 -0.18 - 26 0 0 30 9 58 21 13 0.4 54 55 -32 30 18 0 30 1 56 30 23 4 29 56 52 -0.18 - 25 0 0 31 9 39 21 12 46.9 55 56 -32 31 17 39 31 1 40 31 22 42 30 56 37 -0.18 - 24 0 0 32 8 14 21 12 33.3 56 57 -33 32 16 12 32 0 17 32 21 13 31 55 16 -0.18 - 23 0 0 33 5 42 21 12 19.8 57 58 -34 33 13 37 32 57 47 33 18 37 32 52 47 -0.18 - 22 0 0 34 2 0 21 12 6.3 58 59 -35 34 9 53 33 54 8 34 14 51 33 49 10 -0.18 - 21 0 0 34 57 9 21 11 52.9 60 61 -36 35 4 59 34 49 20 35 9 56 34 44 23 -0.19 - 20 0 0 35 51 8 21 11 39.5 61 62 -37 35 58 55 35 43 21 36 3 51 35 38 26 -0.19 - 19 0 0 36 43 56 21 11 26.2 62 63 -38 36 51 41 36 36 12 36 56 34 36 31 19 -0.19 - 18 0 0 37 35 33 21 11 13.1 63 65 -38 37 43 15 37 27 52 37 48 7 37 23 1 -0.19 - 17 0 0 38 25 59 21 11 0.0 64 66 -39 38 33 38 38 18 21 38 38 28 38 13 31 -0.19 - 16 0 0 39 15 14 21 10 47.1 65 68 -40 39 22 49 39 7 38 39 27 38 39 2 51 -0.19 - 15 0 0 40 3 18 21 10 34.3 66 69 -41 40 10 50 39 55 45 40 15 36 39 51 0 -0.19 - 14 0 0 40 50 11 21 10 21.6 67 71 -41 40 57 40 40 42 41 41 2 24 40 37 58 -0.19 - 13 0 0 41 35 53 21 10 9.1 68 73 -42 41 43 20 41 28 27 41 48 2 41 23 45 -0.19 - 12 0 0 42 20 26 21 9 56.7 68 75 -42 42 27 50 42 13 3 42 32 30 42 8 23 -0.19 - 11 0 0 43 3 50 21 9 44.5 69 77 -43 43 11 10 42 56 30 43 15 49 42 51 53 -0.19 - 10 0 0 43 46 6 21 9 32.5 70 79 -44 43 53 23 43 38 49 43 57 59 43 34 13 -0.20 - 9 0 0 44 27 14 21 9 20.6 71 81 -44 44 34 27 44 20 0 44 39 2 44 15 26 -0.20 - 8 0 0 45 7 15 21 9 8.9 72 84 -45 45 14 25 45 0 5 45 18 58 44 55 33 -0.20 - 7 0 0 45 46 11 21 8 57.3 72 86 -45 45 53 18 45 39 4 45 57 48 45 34 34 -0.20 - 6 0 0 46 24 1 21 8 46.0 73 89 -46 46 31 5 46 16 58 46 35 34 46 12 30 -0.20 - 5 0 0 47 0 49 21 8 34.8 74 91 -46 47 7 49 46 53 48 47 12 15 46 49 22 -0.20 - 4 0 0 47 36 33 21 8 23.8 74 94 -46 47 43 31 47 29 36 47 47 55 47 25 12 -0.20 - 3 0 0 48 11 17 21 8 12.9 75 97 -47 48 18 11 48 4 22 48 22 33 48 0 1 -0.20 - 2 0 0 48 45 0 21 8 2.3 75 101 -47 48 51 51 48 38 9 48 56 11 48 33 49 -0.20 - 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0 0 58 45 21 21 4 11.2 75 198 -52 58 51 3 58 39 38 58 54 40 58 36 2 -0.21 26 0 0 58 58 24 21 4 4.3 74 200 -52 59 4 4 58 52 43 59 7 40 58 49 8 -0.21 27 0 0 59 10 55 21 3 57.6 74 202 -52 59 16 34 59 5 16 59 20 9 59 1 42 -0.21 28 0 0 59 22 56 21 3 50.9 73 205 -52 59 28 33 59 17 18 59 32 7 59 13 45 -0.21 29 0 0 59 34 27 21 3 44.2 73 207 -52 59 40 3 59 28 51 59 43 35 59 25 19 -0.21 30 0 0 59 45 28 21 3 37.7 73 209 -52 59 51 2 59 39 53 59 54 34 59 36 22 -0.21 31 0 0 59 56 0 21 3 31.2 72 211 -52 60 1 33 59 50 27 60 5 3 59 46 57 -0.21 32 0 0 60 6 4 21 3 24.8 72 213 -52 60 11 35 60 0 32 60 15 5 59 57 3 -0.21 33 0 0 60 15 40 21 3 18.5 71 214 -52 60 21 10 60 10 9 60 24 39 60 6 41 -0.21 34 0 0 60 24 48 21 3 12.3 71 216 -52 60 30 17 60 19 19 60 33 45 60 15 51 -0.21 35 0 0 60 33 29 21 3 6.1 71 218 -52 60 38 57 60 28 2 60 42 24 60 24 35 -0.21 36 0 0 60 41 44 21 2 59.9 70 220 -52 60 47 11 60 36 18 60 50 37 60 32 52 -0.21 37 0 0 60 49 33 21 2 53.9 70 221 -52 60 54 58 60 44 8 60 58 24 60 40 42 -0.21 38 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0 48 29 31 20 55 52.3 29 305 -29 48 36 27 48 22 36 48 40 49 48 18 14 -0.19 116 0 0 47 54 33 20 55 46.8 28 306 -28 48 1 31 47 47 34 48 5 56 47 43 10 -0.19 117 0 0 47 18 28 20 55 41.4 27 307 -27 47 25 30 47 11 26 47 29 58 47 6 59 -0.19 118 0 0 46 41 16 20 55 36.1 26 307 -27 46 48 22 46 34 10 46 52 52 46 29 42 -0.19 119 0 0 46 2 56 20 55 30.8 25 308 -26 46 10 5 45 55 46 46 14 37 45 51 15 -0.19 120 0 0 45 23 25 20 55 25.6 24 309 -25 45 30 38 45 16 12 45 35 12 45 11 38 -0.19 121 0 0 44 42 42 20 55 20.4 23 310 -25 44 49 59 44 35 25 44 54 35 44 30 50 -0.19 122 0 0 44 0 47 20 55 15.4 22 310 -24 44 8 7 43 53 26 44 12 46 43 48 48 -0.19 123 0 0 43 17 36 20 55 10.4 21 311 -23 43 25 1 43 10 12 43 29 42 43 5 32 -0.19 124 0 0 42 33 11 20 55 5.6 20 312 -22 42 40 39 42 25 43 42 45 22 42 21 0 -0.19 125 0 0 41 47 28 20 55 0.9 19 312 -21 41 55 0 41 39 56 41 59 45 41 35 11 -0.19 126 0 0 41 0 27 20 54 56.4 18 313 -20 41 8 2 40 52 52 41 12 50 40 48 4 -0.19 127 0 0 40 12 7 20 54 52.0 17 314 -19 40 19 46 40 4 28 40 24 36 39 59 38 -0.19 128 0 0 39 22 27 20 54 47.8 16 314 -18 39 30 10 39 14 44 39 35 2 39 9 52 -0.19 129 0 0 38 31 26 20 54 43.8 15 315 -18 38 39 12 38 23 40 38 44 7 38 18 45 -0.19 130 0 0 37 39 3 20 54 40.0 14 316 -17 37 46 54 37 31 14 37 51 51 37 26 17 -0.19 131 0 0 36 45 19 20 54 36.4 13 316 -16 36 53 13 36 37 26 36 58 12 36 32 27 -0.19 132 0 0 35 50 13 20 54 33.1 11 317 -15 35 58 10 35 42 16 36 3 11 35 37 14 -0.19 133 0 0 34 53 44 20 54 30.0 10 317 -13 35 1 44 34 45 43 35 6 48 34 40 40 -0.20 134 0 0 33 55 52 20 54 27.3 9 318 -12 34 3 56 33 47 49 34 9 2 33 42 43 -0.20 135 0 0 32 56 39 20 54 24.8 8 318 -11 33 4 47 32 48 32 33 9 55 32 43 25 -0.20 136 0 0 31 56 5 20 54 22.7 6 319 -10 32 4 16 31 47 55 32 9 26 31 42 46 -0.21 137 0 0 30 54 11 20 54 21.0 5 320 -9 31 2 24 30 45 57 31 7 36 30 40 46 -0.22 138 0 0 29 50 57 20 54 19.6 4 320 -8 29 59 13 29 42 41 30 4 27 29 37 28 -0.25 139 0 0 28 46 26 20 54 18.7 2 321 -7 28 54 45 28 38 7 29 0 0 28 32 52 -0.30 140 0 0 27 40 38 20 54 18.2 1 321 -5 27 49 0 27 32 17 27 54 17 27 27 0 -0.53 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: HIP 15338 * constellation : Perseus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 03 17 47.4160 DE: +44 01 29.471 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 03 17 47.4158 DE: +44 01 29.473 * position source: Gaia DR3 * standard error: RA,DE [mas]: (1.600,1.200) * V mag [mag]: 5.5 * B mag [mag]: 5.4 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1158) Luda asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.019 distance from Earth [AU]: 1.37960 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): 0.033", 0.005", 68.673° remarks: * orbital elements for (1158)Luda : Mean anomaly = 18.9646189706 deg Arg. of pericenter = 57.4447188655 deg Long. of node = 344.5548230878 deg Inclination = 14.8212531162 deg Eccentricity = 0.1136781580 Semimajor axis = 2.5646924620 AU Perihelion dist = 2.2731429470 AU Mag: H = 10.86, G = 0.15 Epoch of elements : MJD 60649.87932329 TDT (2024 Dec 05.8793) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,2.19,2024,12,5,21.103772,-0.091042,0.173463,-4.363888,-2.293247,0.002096,-0.001805,0.000001,0.000001 18.1646,44.1186,-138.81,-22.51,False HIP 15338,3.29650444,44.0248530,5.43,5.46,5.48,0.2,0,,3.32497284,44.1186037,8.61,8.15,0,0,0 1158,Luda,14.07,19.100,1.3796,0,0,-2.581,-14.62,,1.0,0 0,18.7536,2024,12,5,57.4447,344.5548,14.8213,0.11368,2.56469,2.27314,10.85,5.0,0.15 1.316,0.0327,0.0048,69,0.0060,Known errors,1.36,0,-1,-1 20241205__15338,60140.73 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:28 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org