IOTA/IOTA-ES occultation update for (393) Lampetia / TYC 0467-02373-1 event on 2023 Jun 08, 16:54 UT Visible from Australia, China Summary ------- On 2023 Jun 08 UT, the 129.2 km diameter asteroid (393) Lampetia will occult a 9.0 mag star in the constellation Aquila for observers along a path across Australia, China. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.13 mag to 10.94 mag (the magnitude of the asteroid) for at most 17.630 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: 2023 Jun 08, 16:39 - 2023 Jun 08, 17:08 * geocentric midpoint of event [JD]: 2460104.20441659 * magnitude of target star: 8.98 * magnitude drop [mag]: 2.13 * estimated maximum duration [s]: 17.630 * Moon: 73 % sunlit, 41° distance * Sun: 140° distance * rough path description: Australia, China The occultation path -------------------- * approximate projected width [km]: 132 * 1 sigma uncertainty interval [path widths]: +/- 0.20 * 1 sigma uncertainty interval [seconds]: +/- 0.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.034, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.034", 0.005", 81°) * approx speed of asteroid's shadow [km/s]: 7.3296 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0467-02373-1 by 393 Lampetia on 2023 Jun 8 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 101 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 50 9 50 .. .. .. 49 45 43 .... 102 0 0 50 16 32 17 5 52.6 35 138 -17 51 18 40 49 14 8 .. .. .. 48 49 27 .... 103 0 0 49 19 15 17 5 42.4 36 139 -18 50 22 50 48 15 24 50 47 49 47 50 9 0.17 104 0 0 48 18 50 17 5 31.4 37 140 -19 49 23 55 47 13 26 49 49 30 46 47 35 0.17 105 0 0 47 15 3 17 5 19.7 38 140 -20 48 21 44 46 8 3 48 47 56 45 41 33 0.17 106 0 0 46 7 41 17 5 7.0 40 141 -21 47 16 2 44 58 59 47 42 53 44 31 49 0.17 107 0 0 44 56 29 17 4 53.4 41 141 -22 46 6 36 43 46 1 46 34 9 43 18 8 0.17 108 0 0 43 41 14 17 4 38.8 42 142 -23 44 53 11 42 28 53 45 21 27 42 0 15 0.17 109 0 0 42 21 37 17 4 23.0 44 142 -25 43 35 31 41 7 18 44 4 32 40 37 53 0.17 110 0 0 40 57 22 17 4 6.0 45 142 -26 42 13 19 39 40 58 42 43 8 39 10 44 0.17 111 0 0 39 28 10 17 3 47.7 47 143 -27 40 46 15 38 9 35 41 16 55 37 38 28 0.17 112 0 0 37 53 41 17 3 27.8 49 143 -29 39 14 3 36 32 48 39 45 34 36 0 46 0.17 113 0 0 36 13 36 17 3 6.5 51 143 -30 37 36 20 34 50 17 38 8 47 34 17 17 0.17 114 0 0 34 27 32 17 2 43.3 52 143 -32 35 52 46 33 1 40 36 26 11 32 27 38 0.17 115 0 0 32 35 7 17 2 18.4 54 142 -34 34 2 59 31 6 33 34 37 26 30 31 25 0.17 116 0 0 30 35 58 17 1 51.4 56 142 -35 32 6 36 29 4 32 32 42 7 28 28 16 0.17 117 0 0 28 29 40 17 1 22.3 58 141 -37 30 3 14 26 55 13 30 39 53 26 17 44 0.17 118 0 0 26 15 50 17 0 51.0 61 140 -39 27 52 29 24 38 10 28 30 20 23 59 23 0.17 119 0 0 23 54 2 17 0 17.2 63 139 -41 25 33 58 22 12 58 26 13 3 21 32 47 0.18 120 0 0 21 23 51 16 59 40.8 65 137 -43 23 7 15 19 39 8 23 47 40 18 57 28 0.18 121 0 0 18 44 52 16 59 1.7 68 134 -46 20 31 57 16 56 15 21 13 47 16 12 59 0.18 122 0 0 15 56 39 16 58 19.9 70 131 -48 17 47 42 14 3 50 18 31 2 13 18 49 0.18 123 0 0 12 58 48 16 57 35.1 73 125 -50 14 54 6 11 1 25 15 39 1 10 14 30 0.19 124 0 0 9 50 53 16 56 47.3 75 118 -53 11 50 47 7 48 30 12 37 26 6 59 30 0.19 125 0 0 6 32 29 16 55 56.6 77 107 -55 8 37 25 4 24 34 9 25 56 3 33 14 0.19 126 0 0 3 3 11 16 55 2.8 78 92 -58 5 13 39 0 49 5 6 4 13 - 0 4 54 0.20 127 0 0 - 0 37 29 16 54 6.1 79 73 -60 1 39 10 - 2 58 34 2 31 59 - 3 55 34 0.20 128 0 0 - 4 29 59 16 53 6.7 78 55 -62 - 2 6 21 - 6 59 6 - 1 11 1 - 7 59 38 0.20 129 0 0 - 8 34 52 16 52 4.6 75 40 -64 - 6 3 13 -11 13 22 - 5 5 4 -12 18 4 0.21 130 0 0 -12 52 41 16 51 0.2 72 30 -66 -10 11 47 -15 42 23 - 9 10 23 -16 52 10 0.22 131 0 0 -17 24 13 16 49 53.8 69 22 -67 -14 32 22 -20 27 31 -13 27 11 -21 43 39 0.22 132 0 0 -22 10 19 16 48 45.8 64 17 -67 -19 5 19 -25 30 35 -17 55 43 -26 54 55 0.23 133 0 0 -27 12 4 16 47 36.9 60 13 -67 -23 50 59 -30 54 10 -22 36 7 -32 29 31 0.23 134 0 0 -32 30 51 16 46 27.8 55 10 -65 -28 49 40 -36 42 8 -27 28 28 -38 33 15 0.24 135 0 0 -38 8 25 16 45 19.3 49 8 -63 -34 1 35 -43 0 51 -32 32 36 -45 16 45 0.24 136 0 0 -44 7 4 16 44 12.6 43 6 -59 -39 26 36 -50 2 32 -37 48 3 -53 4 57 0.25 137 0 0 -50 29 50 16 43 9.1 37 5 -55 -45 3 55 -58 18 22 -43 13 30 -63 50 52 0.25 138 0 0 -57 20 46 16 42 10.6 30 3 -50 -50 51 24 .. .. .. -48 46 25 .. .. .. 0.26 139 0 0 -64 45 31 16 41 19.7 23 2 -44 -56 44 14 .. .. .. -54 21 53 .. .. .. 0.27 140 0 0 -72 52 26 16 40 39.7 15 1 -37 -62 32 59 .. .. .. -59 51 36 .. .. .. 0.29 141 0 0 -81 59 45 16 40 15.2 5 0 -30 -68 1 37 .. .. .. -65 3 3 .. .. .. 0.40 142 0 0 .. .. .... .. .. .. .. .. .. -72 49 27 .. .. .. -69 41 16 .. .. .. .... 143 0 0 .. .. .... .. .. .. .. .. .. -76 40 12 .. .. .. -73 34 12 .. .. .. .... 144 0 0 .. .. .... .. .. .. .. .. .. -79 31 59 .. .. .. -76 38 19 .. .. .. .... 145 0 0 .. .. .... .. .. .. .. .. .. -81 35 18 .. .. .. -78 58 47 .. .. .. .... 146 0 0 .. .. .... .. .. .. .. .. .. -83 3 45 .. .. .. -80 44 47 .. .. .. .... 147 0 0 .. .. .... .. .. .. .. .. .. -84 8 25 .. .. .. -82 5 16 .. .. .. .... 148 0 0 .. .. .... .. .. .. .. .. .. -84 56 57 .. .. .. -83 7 20 .. .. .. .... 149 0 0 .. .. .... .. .. .. .. .. .. -85 34 19 .. .. .. -83 56 5 .. .. .. .... 150 0 0 .. .. .... .. .. .. .. .. .. -86 3 48 .. .. .. -84 35 6 .. .. .. .... 151 0 0 .. .. .... .. .. .. .. .. .. -86 27 33 .. .. .. -85 6 53 .. .. .. .... 152 0 0 .. .. .... .. .. .. .. .. .. -86 47 3 .. .. .. -85 33 10 .. .. .. .... 153 0 0 .. .. .... .. .. .. .. .. .. -87 3 19 .. .. .. -85 55 12 .. .. .. .... 154 0 0 .. .. .... .. .. .. .. .. .. -87 17 3 .. .. .. -86 13 56 .. .. .. .... 155 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -86 30 0 .. .. .. .... 156 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -86 43 56 .. .. .. .... 157 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -86 56 7 .. .. .. .... 158 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. -87 6 51 .. .. .. .... Uncertainty in time = +/- 3 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: TYC 0467-02373-1 * constellation : Aquila * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 11 34.8146 DE: +02 35 29.774 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 11 34.8147 DE: +02 35 29.775 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (393) Lampetia asteroid class: approx. diameter [km]: 129 approx. diameter ["]: 0.172 distance from Earth [AU]: 1.03300 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#127 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): 0.034", 0.005", 80.686° remarks: * orbital elements for (393)Lampetia : Mean anomaly = 345.6368358561 deg Arg. of pericenter = 90.8705796440 deg Long. of node = 212.3931958985 deg Inclination = 14.8773339817 deg Eccentricity = 0.3299639743 Semimajor axis = 2.7796172463 AU Perihelion dist = 1.8624436926 AU Mag: H = 8.42, G = 0.15 Epoch of elements : MJD 60103.70444444 TDT (2023 Jun 08.7044) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1272023Apr24,17.63,2023,6,8,16.905998,-0.191736,-0.038466,-0.812780,4.056405,-0.002430,-0.002103,0.000001,0.000000 137.7866,2.6292,-73.82,22.87,False TYC 0467-02373-1,19.19300404,2.5916037,0.00,8.98,0.00,0.0,0,,19.21281316,2.6291550,2.12,0.00,0,0,0 393,Lampetia,10.94,129.2,1.0330,0,0,-0.462,34.53,,8.4,0 0,345.4870,2023,6,8,90.8706,212.3932,14.8773,0.32996,2.77962,1.86244,8.45,5.0,0.15 1.197,0.0340,0.0050,81,0.0340,Known errors,-1.00,-1,-1,-1 20230608_2373-1,60063.19 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org