IOTA/IOTA-ES occultation update for (735) Marghanna / TYC 7459-00880-1 event on 2024 Dec 01, 18:00 UT Visible from Summary ------- On 2024 Dec 01 UT, the 73.5675613282065 km diameter asteroid (735) Marghanna will occult a 9.0 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.21 mag to 14.23 mag (the magnitude of the asteroid) for at most 1.810 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: 100 * date and approx. time of event: 2024 Dec 01, 17:58 - 2024 Dec 01, 18:03 * geocentric midpoint of event [JD]: 2460646.25061825 * magnitude of target star: 9.03 * magnitude drop [mag]: 5.21 * estimated maximum duration [s]: 1.810 * Moon: 0 % sunlit, 46° distance * Sun: 52° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 74 * 1 sigma uncertainty interval [path widths]: +/- 0.06 * 1 sigma uncertainty interval [seconds]: +/- 0.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.001", 78°) * approx speed of asteroid's shadow [km/s]: 40.7264 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7459-00880-1 by 735 Marghanna on 2024 Dec 1 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 -135 0 0 -17 35 32 17 58 16.7 1 124 50 -17 59 47 -17 11 17 -18 2 34 -17 8 30 .... -134 0 0 -18 14 48 17 58 16.8 2 124 51 -18 38 58 -17 50 38 -18 41 44 -17 47 52 0.09 -133 0 0 -18 53 27 17 58 16.9 3 124 52 -19 17 32 -18 29 23 -19 20 17 -18 26 38 0.06 -132 0 0 -19 31 30 17 58 17.1 4 124 53 -19 55 29 -19 7 31 -19 58 14 -19 4 47 0.04 -131 0 0 -20 8 56 17 58 17.4 5 123 54 -20 32 49 -19 45 2 -20 35 33 -19 42 18 0.03 -130 0 0 -20 45 43 17 58 17.7 6 123 55 -21 9 31 -20 21 56 -21 12 14 -20 19 12 0.03 -129 0 0 -21 21 52 17 58 18.1 7 122 56 -21 45 34 -20 58 11 -21 48 17 -20 55 28 0.02 -128 0 0 -21 57 22 17 58 18.5 9 122 57 -22 20 58 -21 33 47 -22 23 40 -21 31 5 0.02 -127 0 0 -22 32 13 17 58 19.0 10 122 58 -22 55 43 -22 8 44 -22 58 25 -22 6 2 0.02 -126 0 0 -23 6 25 17 58 19.5 11 121 59 -23 29 49 -22 43 1 -23 32 30 -22 40 20 0.02 -125 0 0 -23 39 57 17 58 20.1 12 121 60 -24 3 15 -23 16 39 -24 5 54 -23 13 59 0.01 -124 0 0 -24 12 48 17 58 20.7 13 121 61 -24 36 0 -23 49 36 -24 38 39 -23 46 57 0.01 -123 0 0 -24 44 59 17 58 21.4 14 120 62 -25 8 5 -24 21 53 -25 10 44 -24 19 15 0.01 -122 0 0 -25 16 30 17 58 22.1 15 120 63 -25 39 30 -24 53 30 -25 42 8 -24 50 52 0.01 -121 0 0 -25 47 21 17 58 22.9 16 119 63 -26 10 15 -25 24 27 -26 12 52 -25 21 49 0.01 -120 0 0 -26 17 31 17 58 23.7 17 119 64 -26 40 19 -25 54 43 -26 42 55 -25 52 6 0.01 -119 0 0 -26 47 0 17 58 24.5 18 118 65 -27 9 42 -26 24 18 -27 12 18 -26 21 42 0.01 -118 0 0 -27 15 49 17 58 25.4 19 118 66 -27 38 25 -26 53 13 -27 41 0 -26 50 37 0.01 -117 0 0 -27 43 57 17 58 26.3 20 118 67 -28 6 28 -27 21 27 -28 9 2 -27 18 52 0.01 -116 0 0 -28 11 26 17 58 27.3 21 117 68 -28 33 50 -27 49 1 -28 36 24 -27 46 27 0.01 -115 0 0 -28 38 13 17 58 28.3 22 117 68 -29 0 32 -28 15 54 -29 3 6 -28 13 21 0.01 -114 0 0 -29 4 21 17 58 29.3 23 116 69 -29 26 34 -28 42 8 -29 29 7 -28 39 35 0.00 -113 0 0 -29 29 49 17 58 30.4 24 116 70 -29 51 57 -29 7 41 -29 54 29 -29 5 9 0.00 -112 0 0 -29 54 37 17 58 31.5 25 115 71 -30 16 39 -29 32 35 -30 19 10 -29 30 4 0.00 -111 0 0 -30 18 46 17 58 32.6 26 115 71 -30 40 42 -29 56 49 -30 43 13 -29 54 18 0.00 -110 0 0 -30 42 15 17 58 33.8 27 114 72 -31 4 6 -30 20 24 -31 6 36 -30 17 54 0.00 -109 0 0 -31 5 5 17 58 35.0 28 114 72 -31 26 51 -30 43 19 -31 29 20 -30 40 49 0.00 -108 0 0 -31 27 16 17 58 36.2 29 113 73 -31 48 57 -31 5 35 -31 51 26 -31 3 7 0.00 -107 0 0 -31 48 49 17 58 37.5 30 113 74 -32 10 24 -31 27 13 -32 12 53 -31 24 45 0.00 -106 0 0 -32 9 43 17 58 38.7 31 112 74 -32 31 14 -31 48 12 -32 33 41 -31 45 45 0.00 -105 0 0 -32 29 59 17 58 40.0 32 111 75 -32 51 25 -32 8 33 -32 53 52 -32 6 6 0.00 -104 0 0 -32 49 38 17 58 41.3 32 111 75 -33 10 59 -32 28 17 -33 13 25 -32 25 50 0.00 -103 0 0 -33 8 39 17 58 42.7 33 110 75 -33 29 55 -32 47 22 -33 32 21 -32 44 56 0.00 -102 0 0 -33 27 2 17 58 44.0 34 110 76 -33 48 14 -33 5 51 -33 50 40 -33 3 25 0.00 -101 0 0 -33 44 49 17 58 45.4 35 109 76 -34 5 56 -33 23 42 -34 8 21 -33 21 17 0.00 -100 0 0 -34 1 59 17 58 46.8 36 109 76 -34 23 2 -33 40 56 -34 25 27 -33 38 32 0.00 - 99 0 0 -34 18 33 17 58 48.3 37 108 76 -34 39 32 -33 57 34 -34 41 56 -33 55 10 0.00 - 98 0 0 -34 34 31 17 58 49.7 38 108 76 -34 55 25 -34 13 36 -34 57 49 -34 11 12 0.00 - 97 0 0 -34 49 53 17 58 51.2 39 107 76 -35 10 43 -34 29 2 -35 13 6 -34 26 39 0.00 - 96 0 0 -35 4 39 17 58 52.7 40 106 76 -35 25 26 -34 43 52 -35 27 49 -34 41 29 0.00 - 95 0 0 -35 18 50 17 58 54.2 40 106 76 -35 39 33 -34 58 7 -35 41 56 -34 55 45 0.00 - 94 0 0 -35 32 27 17 58 55.7 41 105 76 -35 53 6 -35 11 47 -35 55 28 -35 9 25 0.00 - 93 0 0 -35 45 28 17 58 57.3 42 105 76 -36 6 4 -35 24 52 -36 8 26 -35 22 30 0.00 - 92 0 0 -35 57 55 17 58 58.8 43 104 76 -36 18 28 -35 37 22 -36 20 49 -35 35 1 0.00 - 91 0 0 -36 9 48 17 59 0.4 44 104 76 -36 30 18 -35 49 18 -36 32 39 -35 46 58 0.00 - 90 0 0 -36 21 7 17 59 2.0 45 103 75 -36 41 34 -36 0 40 -36 43 54 -35 58 20 0.00 - 89 0 0 -36 31 53 17 59 3.6 45 102 75 -36 52 16 -36 11 29 -36 54 36 -36 9 9 0.00 - 88 0 0 -36 42 4 17 59 5.2 46 102 75 -37 2 25 -36 21 43 -37 4 45 -36 19 24 0.00 - 87 0 0 -36 51 43 17 59 6.8 47 101 74 -37 12 1 -36 31 25 -37 14 21 -36 29 5 0.00 - 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35 0 0 -32 54 28 18 0 53.0 87 138 38 -33 15 48 -32 33 7 -33 18 15 -32 30 41 -0.04 - 34 0 0 -32 34 53 18 0 55.5 87 230 37 -32 56 18 -32 13 28 -32 58 46 -32 11 1 -0.01 - 33 0 0 -32 14 40 18 0 58.0 87 239 36 -32 36 10 -31 53 10 -32 38 38 -31 50 42 -0.01 - 32 0 0 -31 53 48 18 1 0.5 86 242 35 -32 15 24 -31 32 13 -32 17 52 -31 29 45 -0.01 - 31 0 0 -31 32 18 18 1 3.0 86 243 35 -31 53 59 -31 10 37 -31 56 27 -31 8 8 -0.01 - 30 0 0 -31 10 8 18 1 5.6 85 243 34 -31 31 54 -30 48 22 -31 34 24 -30 45 53 0.00 - 29 0 0 -30 47 19 18 1 8.2 84 243 33 -31 9 10 -30 25 28 -31 11 40 -30 22 57 0.00 - 28 0 0 -30 23 50 18 1 10.8 83 243 32 -30 45 47 -30 1 53 -30 48 17 -29 59 22 0.00 - 27 0 0 -29 59 41 18 1 13.4 82 243 31 -30 21 43 -29 37 38 -30 24 15 -29 35 7 0.00 - 26 0 0 -29 34 52 18 1 16.0 81 243 30 -29 57 0 -29 12 43 -29 59 32 -29 10 11 0.00 - 25 0 0 -29 9 22 18 1 18.6 80 242 29 -29 31 35 -28 47 8 -29 34 8 -28 44 35 0.00 - 24 0 0 -28 43 11 18 1 21.3 79 242 28 -29 5 31 -28 20 51 -29 8 4 -28 18 18 0.00 - 23 0 0 -28 16 20 18 1 24.0 78 242 27 -28 38 45 -27 53 54 -28 41 19 -27 51 20 0.00 - 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9 0 0 -20 47 58 18 2 2.4 64 237 13 -21 11 49 -20 24 6 -21 14 33 -20 21 23 0.00 - 8 0 0 -20 10 50 18 2 5.1 63 236 12 -20 34 47 -19 46 53 -20 37 32 -19 44 8 0.00 - 7 0 0 -19 33 3 18 2 7.9 61 236 10 -19 57 6 -19 9 0 -19 59 51 -19 6 14 0.00 - 6 0 0 -18 54 37 18 2 10.6 60 236 9 -19 18 46 -18 30 28 -19 21 32 -18 27 42 0.00 - 5 0 0 -18 15 33 18 2 13.3 59 235 8 -18 39 48 -17 51 18 -18 42 35 -17 48 32 0.00 - 4 0 0 -17 35 52 18 2 16.1 58 235 7 -18 0 13 -17 11 32 -18 3 0 -17 8 45 0.00 - 3 0 0 -16 55 34 18 2 18.8 57 235 6 -17 20 0 -16 31 8 -17 22 48 -16 28 21 0.00 - 2 0 0 -16 14 41 18 2 21.5 56 235 5 -16 39 12 -15 50 10 -16 42 1 -15 47 21 0.00 - 1 0 0 -15 33 13 18 2 24.1 54 234 4 -15 57 49 -15 8 36 -16 0 38 -15 5 47 0.00 0 0 0 -14 51 11 18 2 26.8 53 234 3 -15 15 52 -14 26 29 -15 18 42 -14 23 39 0.00 1 0 0 -14 8 36 18 2 29.4 52 234 1 -14 33 22 -13 43 49 -14 36 12 -13 40 59 0.00 2 0 0 -13 25 29 18 2 32.0 51 234 0 -13 50 21 -13 0 38 -13 53 11 -12 57 47 0.00 3 0 0 -12 41 52 18 2 34.6 50 233 -1 -13 6 48 -12 16 57 -13 9 39 -12 14 5 0.00 4 0 0 -11 57 46 18 2 37.1 48 233 -2 -12 22 47 -11 32 46 -12 25 38 -11 29 55 0.00 5 0 0 -11 13 13 18 2 39.6 47 233 -3 -11 38 17 -10 48 8 -11 41 9 -10 45 16 0.00 6 0 0 -10 28 13 18 2 42.1 46 233 -5 -10 53 21 -10 3 5 -10 56 13 -10 0 12 0.00 7 0 0 - 9 42 48 18 2 44.5 45 233 -6 -10 8 0 - 9 17 36 -10 10 53 - 9 14 43 0.00 8 0 0 - 8 57 0 18 2 46.9 43 232 -7 - 9 22 15 - 8 31 45 - 9 25 8 - 8 28 51 0.00 9 0 0 - 8 10 50 18 2 49.2 42 232 -8 - 8 36 9 - 7 45 32 - 8 39 2 - 7 42 38 0.00 10 0 0 - 7 24 21 18 2 51.5 41 232 -10 - 7 49 42 - 6 59 0 - 7 52 36 - 6 56 6 0.00 11 0 0 - 6 37 33 18 2 53.8 40 232 -11 - 7 2 57 - 6 12 10 - 7 5 52 - 6 9 15 0.00 12 0 0 - 5 50 30 18 2 56.0 38 232 -12 - 6 15 56 - 5 25 4 - 6 18 50 - 5 22 9 0.00 13 0 0 - 5 3 12 18 2 58.1 37 232 -13 - 5 28 40 - 4 37 43 - 5 31 35 - 4 34 49 0.01 14 0 0 - 4 15 41 18 3 0.2 36 232 -14 - 4 41 11 - 3 50 11 - 4 44 6 - 3 47 16 0.01 15 0 0 - 3 28 0 18 3 2.2 35 232 -16 - 3 53 31 - 3 2 28 - 3 56 26 - 2 59 33 0.01 16 0 0 - 2 40 10 18 3 4.1 33 232 -17 - 3 5 42 - 2 14 37 - 3 8 38 - 2 11 42 0.01 17 0 0 - 1 52 14 18 3 6.0 32 232 -18 - 2 17 47 - 1 26 40 - 2 20 42 - 1 23 45 0.01 18 0 0 - 1 4 13 18 3 7.9 31 232 -19 - 1 29 47 - 0 38 39 - 1 32 42 - 0 35 43 0.01 19 0 0 - 0 16 9 18 3 9.6 29 232 -21 - 0 41 43 0 9 25 - 0 44 39 0 12 20 0.01 20 0 0 0 31 55 18 3 11.3 28 232 -22 0 6 21 0 57 29 0 3 25 1 0 24 0.01 21 0 0 1 19 57 18 3 12.9 27 232 -23 0 54 24 1 45 31 0 51 28 1 48 26 0.01 22 0 0 2 7 56 18 3 14.5 26 232 -24 1 42 23 2 33 29 1 39 28 2 36 24 0.01 23 0 0 2 55 49 18 3 16.0 24 232 -26 2 30 17 3 21 21 2 27 22 3 24 16 0.01 24 0 0 3 43 35 18 3 17.4 23 232 -27 3 18 4 4 9 5 3 15 9 4 12 1 0.01 25 0 0 4 31 11 18 3 18.7 22 232 -28 4 5 42 4 56 40 4 2 47 4 59 35 0.01 26 0 0 5 18 36 18 3 19.9 21 232 -29 4 53 9 5 44 3 4 50 14 5 46 57 0.01 27 0 0 6 5 47 18 3 21.1 19 232 -31 5 40 22 6 31 12 5 37 28 6 34 6 0.01 28 0 0 6 52 43 18 3 22.2 18 232 -32 6 27 21 7 18 5 6 24 26 7 21 0 0.01 29 0 0 7 39 22 18 3 23.2 17 232 -33 7 14 2 8 4 42 7 11 8 8 7 36 0.01 30 0 0 8 25 42 18 3 24.2 15 232 -34 8 0 25 8 50 59 7 57 32 8 53 53 0.01 31 0 0 9 11 42 18 3 25.1 14 232 -35 8 46 28 9 36 55 8 43 35 9 39 49 0.01 32 0 0 9 57 20 18 3 25.9 13 233 -37 9 32 10 10 22 30 9 29 17 10 25 22 0.02 33 0 0 10 42 34 18 3 26.6 12 233 -38 10 17 27 11 7 40 10 14 35 11 10 32 0.02 34 0 0 11 27 22 18 3 27.2 10 233 -39 11 2 20 11 52 25 10 59 28 11 55 17 0.02 35 0 0 12 11 45 18 3 27.8 9 233 -40 11 46 46 12 36 43 11 43 55 12 39 34 0.02 36 0 0 12 55 39 18 3 28.3 8 233 -41 12 30 45 13 20 33 12 27 54 13 23 24 0.02 37 0 0 13 39 4 18 3 28.7 7 234 -42 13 14 14 14 3 53 13 11 24 14 6 43 0.03 38 0 0 14 21 58 18 3 29.1 6 234 -43 13 57 13 14 46 43 13 54 24 14 49 33 0.03 39 0 0 15 4 21 18 3 29.4 4 234 -45 14 39 41 15 29 1 14 36 52 15 31 50 0.04 40 0 0 15 46 11 18 3 29.6 3 234 -46 15 21 36 16 10 46 15 18 48 16 13 35 0.06 41 0 0 16 27 28 18 3 29.7 2 235 -47 16 2 58 16 51 57 16 0 10 16 54 45 0.09 42 0 0 17 8 10 18 3 29.8 1 235 -48 16 43 45 17 32 34 16 40 58 17 35 21 0.20 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 7459-00880-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 24 35.8961 DE: -33 01 48.291 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 24 35.8955 DE: -33 01 48.291 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.0 * B mag [mag]: 9.3 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (735) Marghanna asteroid class: approx. diameter [km]: 74 approx. diameter ["]: 0.043 distance from Earth [AU]: 2.35000 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 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): 0.013", 0.001", 78.004° remarks: * orbital elements for (735)Marghanna : Mean anomaly = 345.9870945024 deg Arg. of pericenter = 309.9938106317 deg Long. of node = 42.9170236093 deg Inclination = 16.8667750804 deg Eccentricity = 0.3205356196 Semimajor axis = 2.7299757326 AU Perihelion dist = 1.8549212695 AU Mag: H = 9.84, G = 0.15 Epoch of elements : MJD 60645.75061796 TDT (2024 Dec 01.7506) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Apr24,1.81,2024,12,1,18.014838,-0.000770,0.004826,21.493722,8.150305,0.004232,0.000256,-0.000001,-0.000001 -34.7687,-32.9518,-92.90,-21.96,False TYC 7459-00880-1,20.40997120,-33.0300807,9.34,9.03,8.86,0.1,0,,20.43584549,-32.9518031,5.20,4.92,0,0,0 735,Marghanna,14.23,73.738,2.3500,0,0,6.391,30.51,,4.2,0 0,345.8231,2024,12,1,309.9938,42.9170,16.8668,0.32054,2.72998,1.85492,9.84,5.0,0.15 1.057,0.0133,0.0014,78,0.0025,Known errors,1.00,0,-1,-1 20241201_0880-1,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:20 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org