IOTA/IOTA-ES occultation update for (156) Xanthippe / TYC 6167-00469-1 event on 2022 May 03, 16:05 UT Visible from Australia, India Summary ------- On 2022 May 03 UT, the 124.3 km diameter asteroid (156) Xanthippe will occult a 11.4 mag star in the constellation Libra for observers along a path across Australia, India. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.54 mag to 10.88 mag (the magnitude of the asteroid) for at most 15.700 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: 2022 May 03, 15:52 - 2022 May 03, 16:19 * geocentric midpoint of event [JD]: 2459703.17092995 * magnitude of target star: 11.35 * magnitude drop [mag]: 0.54 * estimated maximum duration [s]: 15.700 * Moon: 7 % sunlit, 153° distance * Sun: 173° distance * rough path description: Australia, India The occultation path -------------------- * approximate projected width [km]: 124 * 1 sigma uncertainty interval [path widths]: +/- 0.21 * 1 sigma uncertainty interval [seconds]: +/- 4.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.054, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.055", 0.002", 97°) * approx speed of asteroid's shadow [km/s]: 7.9169 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6167-00469-1 by 156 Xanthippe on 2022 May 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 ' " Longitude Longitude Longitude Longitude .. .. .. 42 0 0 .. .. .... .. .. .. 48 26 53 ... .. .. 49 3 43 ... .. .. .... 49 13 29 41 0 0 16 19 32.1 1 121 -7 50 38 44 47 46 5 51 13 41 ... .. .. .... 51 21 12 40 0 0 16 19 31.2 3 122 -9 52 42 23 49 58 14 53 15 43 49 23 4 0.01 Latitude Latitude Latitude Latitude 52 0 0 39 41 1 16 19 30.8 4 123 -10 40 20 59 39 1 4 40 37 39 38 44 26 -0.02 53 0 0 39 10 55 16 19 29.9 4 123 -11 39 51 9 38 30 43 40 7 56 38 13 58 -0.02 54 0 0 38 39 57 16 19 28.8 5 124 -12 39 20 27 37 59 29 39 37 20 37 42 37 -0.03 55 0 0 38 8 5 16 19 27.5 6 125 -13 38 48 51 37 27 21 39 5 51 37 10 22 -0.03 56 0 0 37 35 19 16 19 25.9 7 125 -14 38 16 21 36 54 18 38 33 28 36 37 13 -0.04 57 0 0 37 1 38 16 19 24.1 8 126 -15 37 42 57 36 20 21 38 0 11 36 3 9 -0.04 58 0 0 36 27 1 16 19 22.0 9 126 -16 37 8 37 35 45 28 37 25 58 35 28 9 -0.04 59 0 0 35 51 29 16 19 19.7 10 127 -17 36 33 21 35 9 39 36 50 49 34 52 13 -0.05 60 0 0 35 15 0 16 19 17.1 11 128 -18 35 57 9 34 32 54 36 14 44 34 15 21 -0.05 61 0 0 34 37 34 16 19 14.2 12 128 -19 35 20 0 33 55 11 35 37 42 33 37 32 -0.05 62 0 0 33 59 12 16 19 11.0 13 129 -20 34 41 54 33 16 32 34 59 43 32 58 45 -0.05 63 0 0 33 19 51 16 19 7.5 14 129 -21 34 2 50 32 36 55 34 20 46 32 19 1 -0.05 64 0 0 32 39 33 16 19 3.7 15 130 -22 33 22 49 31 56 20 33 40 52 31 38 19 -0.05 65 0 0 31 58 17 16 18 59.6 16 130 -23 32 41 49 31 14 47 32 59 59 30 56 40 -0.06 66 0 0 31 16 3 16 18 55.1 18 131 -24 31 59 52 30 32 16 32 18 9 30 14 2 -0.06 67 0 0 30 32 50 16 18 50.3 19 131 -25 31 16 56 29 48 48 31 35 20 29 30 27 -0.06 68 0 0 29 48 40 16 18 45.1 20 132 -26 30 33 2 29 4 22 30 51 33 28 45 55 -0.06 69 0 0 29 3 33 16 18 39.6 21 132 -27 29 48 11 28 18 58 30 6 48 28 0 25 -0.06 70 0 0 28 17 28 16 18 33.7 22 133 -28 29 2 21 27 32 38 29 21 5 27 13 58 -0.06 71 0 0 27 30 26 16 18 27.4 23 133 -30 28 15 35 26 45 21 28 34 25 26 26 34 -0.06 72 0 0 26 42 28 16 18 20.8 24 134 -31 27 27 52 25 57 8 27 46 49 25 38 15 -0.06 73 0 0 25 53 35 16 18 13.7 26 134 -32 26 39 14 25 8 0 26 58 16 24 49 1 -0.06 74 0 0 25 3 47 16 18 6.3 27 135 -33 25 49 40 24 17 58 26 8 49 23 58 53 -0.06 75 0 0 24 13 5 16 17 58.4 28 135 -34 24 59 12 23 27 2 25 18 26 23 7 51 -0.06 76 0 0 23 21 31 16 17 50.1 29 135 -36 24 7 51 22 35 15 24 27 11 22 15 58 -0.06 77 0 0 22 29 5 16 17 41.4 30 136 -37 23 15 38 21 42 36 23 35 4 21 23 14 -0.06 78 0 0 21 35 49 16 17 32.3 32 136 -38 22 22 35 20 49 8 22 42 5 20 29 41 -0.06 79 0 0 20 41 45 16 17 22.8 33 137 -39 21 28 43 19 54 52 21 48 18 19 35 21 -0.06 80 0 0 19 46 55 16 17 12.9 34 137 -41 20 34 3 18 59 51 20 53 43 18 40 14 -0.06 81 0 0 18 51 19 16 17 2.5 36 137 -42 19 38 38 18 4 5 19 58 23 17 44 24 -0.06 82 0 0 17 55 1 16 16 51.7 37 138 -43 18 42 29 17 7 36 19 2 18 16 47 52 -0.06 83 0 0 16 58 1 16 16 40.4 38 138 -45 17 45 39 16 10 28 18 5 32 15 50 40 -0.06 84 0 0 16 0 24 16 16 28.8 40 138 -46 16 48 10 15 12 42 17 8 6 14 52 50 -0.06 85 0 0 15 2 10 16 16 16.7 41 138 -47 15 50 4 14 14 20 16 10 3 13 54 25 -0.06 86 0 0 14 3 22 16 16 4.3 42 139 -49 14 51 23 13 15 25 15 11 25 12 55 27 -0.06 87 0 0 13 4 3 16 15 51.4 44 139 -50 13 52 10 12 16 0 14 12 15 11 55 59 -0.06 88 0 0 12 4 15 16 15 38.1 45 139 -51 12 52 28 11 16 7 13 12 35 10 56 4 -0.06 89 0 0 11 4 2 16 15 24.5 46 140 -53 11 52 19 10 15 49 12 12 28 9 55 44 -0.06 90 0 0 10 3 26 16 15 10.5 48 140 -54 10 51 47 9 15 9 11 11 58 8 55 3 -0.06 91 0 0 9 2 30 16 14 56.1 49 140 -55 9 50 54 8 14 10 10 11 6 7 54 2 -0.06 92 0 0 8 1 17 16 14 41.4 50 140 -57 8 49 43 7 12 55 9 9 56 6 52 46 -0.06 93 0 0 6 59 50 16 14 26.3 52 140 -58 7 48 18 6 11 27 8 8 31 5 51 17 -0.06 94 0 0 5 58 12 16 14 10.9 53 141 -59 6 46 41 5 9 48 7 6 54 4 49 38 -0.06 95 0 0 4 56 27 16 13 55.2 54 141 -61 5 44 55 4 8 3 6 5 8 3 47 53 -0.06 96 0 0 3 54 37 16 13 39.2 56 141 -62 4 43 4 3 6 13 5 3 17 2 46 4 -0.06 97 0 0 2 52 45 16 13 23.0 57 141 -64 3 41 10 2 4 23 4 1 22 1 44 14 -0.06 98 0 0 1 50 54 16 13 6.5 59 141 -65 2 39 17 1 2 35 2 59 28 0 42 28 -0.06 99 0 0 0 49 9 16 12 49.8 60 141 -66 1 37 28 0 0 53 1 57 38 - 0 19 14 -0.06 100 0 0 - 0 12 29 16 12 32.8 61 142 -68 0 35 46 - 1 0 42 0 55 54 - 1 20 46 -0.06 101 0 0 - 1 13 57 16 12 15.7 63 142 -69 - 0 25 46 - 2 2 5 - 0 5 40 - 2 22 7 -0.05 102 0 0 - 2 15 11 16 11 58.4 64 142 -70 - 1 27 6 - 3 3 13 - 1 7 2 - 3 23 14 -0.05 103 0 0 - 3 16 9 16 11 41.0 66 142 -72 - 2 28 9 - 4 4 5 - 2 8 8 - 4 24 3 -0.05 104 0 0 - 4 16 47 16 11 23.4 67 142 -73 - 3 28 55 - 5 4 37 - 3 8 56 - 5 24 32 -0.05 105 0 0 - 5 17 4 16 11 5.7 68 143 -75 - 4 29 19 - 6 4 46 - 4 9 23 - 6 24 39 -0.05 106 0 0 - 6 16 56 16 10 48.0 70 143 -76 - 5 29 19 - 7 4 31 - 5 9 27 - 7 24 20 -0.05 107 0 0 - 7 16 21 16 10 30.1 71 143 -77 - 6 28 53 - 8 3 47 - 6 9 4 - 8 23 33 -0.05 108 0 0 - 8 15 17 16 10 12.2 72 143 -79 - 7 27 57 - 9 2 34 - 7 8 13 - 9 22 16 -0.05 109 0 0 - 9 13 41 16 9 54.3 74 144 -80 - 8 26 31 -10 0 49 - 8 6 51 -10 20 27 -0.05 110 0 0 -10 11 31 16 9 36.4 75 144 -81 - 9 24 32 -10 58 29 - 9 4 55 -11 18 3 -0.05 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-0.05 -142 0 0 -42 29 57 15 53 1.2 12 250 -6 -41 54 25 -43 5 28 -41 39 36 -43 20 16 -0.05 -141 0 0 -42 14 24 15 52 59.0 11 250 -5 -41 38 43 -42 50 4 -41 23 49 -43 4 56 -0.05 -140 0 0 -41 58 10 15 52 57.0 10 249 -4 -41 22 19 -42 34 0 -41 7 22 -42 48 56 -0.04 -139 0 0 -41 41 15 15 52 55.1 9 249 -3 -41 5 14 -42 17 15 -40 50 12 -42 32 15 -0.04 -138 0 0 -41 23 38 15 52 53.3 9 248 -2 -40 47 26 -41 59 48 -40 32 20 -42 14 52 -0.04 -137 0 0 -41 5 17 15 52 51.7 8 247 -2 -40 28 54 -41 41 38 -40 13 44 -41 56 47 -0.04 -136 0 0 -40 46 13 15 52 50.2 7 247 -1 -40 9 39 -41 22 45 -39 54 24 -41 37 59 -0.04 -135 0 0 -40 26 24 15 52 48.9 6 246 0 -39 49 39 -41 3 8 -39 34 19 -41 18 26 -0.04 -134 0 0 -40 5 50 15 52 47.7 5 245 1 -39 28 52 -40 42 46 -39 13 27 -40 58 9 -0.04 -133 0 0 -39 44 30 15 52 46.7 4 245 2 -39 7 20 -40 21 38 -38 51 49 -40 37 6 -0.04 -132 0 0 -39 22 22 15 52 45.9 4 244 3 -38 44 59 -39 59 43 -38 29 24 -40 15 17 -0.03 -131 0 0 -38 59 26 15 52 45.2 3 243 3 -38 21 50 -39 37 1 -38 6 9 -39 52 40 -0.02 -130 0 0 -38 35 42 15 52 44.7 2 243 4 -37 57 52 -39 13 30 -37 42 5 -39 29 15 -0.01 -129 0 0 -38 11 7 15 52 44.4 1 242 5 -37 33 3 -38 49 9 -37 17 10 -39 5 0 0.05 -128 0 0 -37 45 41 15 52 44.3 0 242 6 .. .. .. -38 23 58 .. .. .. -38 39 55 4.40 Uncertainty in time = +/- 6 secs Prediction of 2022 Apr 15.8 Data for the target star ------------------------ * name: TYC 6167-00469-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 52 21.1729 DE: -22 08 36.857 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 52 21.1729 DE: -22 08 36.857 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (156) Xanthippe asteroid class: approx. diameter [km]: 124 approx. diameter ["]: 0.155 distance from Earth [AU]: 1.10800 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#178 date of fit: 2022 Apr 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): 0.055", 0.002", 97.274° remarks: * orbital elements for (156)Xanthippe : Mean anomaly = 2.9637841454 deg Arg. of pericenter = 338.2858575142 deg Long. of node = 241.8134251831 deg Inclination = 9.7784079205 deg Eccentricity = 0.2262786567 Semimajor axis = 2.7281918875 AU Perihelion dist = 2.1108602918 AU Mag: H = 8.81, G = 0.15 Epoch of elements : MJD 59702.67076389 TDT (2022 May 03.6708) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1782022Apr11,15.70,2022,5,3,16.102319,0.025852,0.027373,-3.249010,3.067832,-0.000221,0.000587,0.000001,0.000000 120.3390,-22.2356,-62.31,15.80,False TYC 6167-00469-1,14.87254803,-22.1435714,0.00,11.35,0.00,0.0,0,,14.89401844,-22.2355870,0.54,0.00,0,0,0 156,Xanthippe,10.88,124.3,1.1080,0,0,-1.857,24.35,,7.0 0,2.8171,2022,5,3,338.2859,241.8134,9.7784,0.22628,2.72819,2.11086,8.71,5.0,0.15 1.208,0.0547,0.0023,97,0.0322,Known errors,-1.00,-1,-1,-1 20220503_0469-1,59684.83 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Apr 15, 19:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org