IOTA/IOTA-ES occultation update for (213) Lilaea / TYC 6381-00674-1 event on 2023 Sep 09, 22:48 UT Visible from Europe Summary ------- On 2023 Sep 09 UT, the 79.7 km diameter asteroid (213) Lilaea will occult a 11.5 mag star in the constellation Aquarius for observers along a path across Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.32 mag to 12.39 mag (the magnitude of the asteroid) for at most 9.550 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: 2023 Sep 09, 22:40 - 2023 Sep 09, 22:55 * geocentric midpoint of event [JD]: 2460197.45020950 * magnitude of target star: 11.45 * magnitude drop [mag]: 1.32 * estimated maximum duration [s]: 9.550 * Moon: 22 % sunlit, 143° distance * Sun: 161° distance * rough path description: Europe The occultation path -------------------- * approximate projected width [km]: 142 * 1 sigma uncertainty interval [path widths]: +/- 0.06 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.017, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.000", 75°) * approx speed of asteroid's shadow [km/s]: 8.3495 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6381-00674-1 by 213 Lilaea on 2023 Sep 9 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 - 80 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 25 36 33 .. .. .. 25 31 45 .... - 79 0 0 25 58 51 22 55 25.2 1 110 6 26 40 43 25 17 47 26 45 41 25 13 1 .... - 78 0 0 25 40 49 22 55 24.7 2 111 5 26 22 25 25 0 1 26 27 21 24 55 16 -1.02 - 77 0 0 25 23 48 22 55 23.8 3 111 4 26 5 8 24 43 14 26 10 2 24 38 31 -1.19 - 76 0 0 25 7 46 22 55 22.6 4 111 3 25 48 51 24 27 26 25 53 44 24 22 44 -1.27 - 75 0 0 24 52 43 22 55 21.0 5 112 3 25 33 35 24 12 36 25 38 26 24 7 56 -1.32 - 74 0 0 24 38 39 22 55 19.0 6 112 2 25 19 18 23 58 44 25 24 7 23 54 5 -1.35 - 73 0 0 24 25 33 22 55 16.7 6 113 1 25 6 0 23 45 49 25 10 48 23 41 12 -1.38 - 72 0 0 24 13 25 22 55 14.1 7 113 0 24 53 41 23 33 52 24 58 28 23 29 16 -1.39 - 71 0 0 24 2 15 22 55 11.1 8 114 -1 24 42 21 23 22 51 24 47 6 23 18 16 -1.40 - 70 0 0 23 52 2 22 55 7.8 9 114 -2 24 31 58 23 12 47 24 36 42 23 8 13 -1.41 - 69 0 0 23 42 45 22 55 4.1 10 114 -3 24 22 32 23 3 38 24 27 16 22 59 5 -1.42 - 68 0 0 23 34 25 22 55 0.2 11 115 -4 24 14 4 22 55 25 24 18 47 22 50 53 -1.43 - 67 0 0 23 27 0 22 54 55.9 12 115 -5 24 6 33 22 48 8 24 11 14 22 43 37 -1.43 - 66 0 0 23 20 32 22 54 51.3 13 116 -6 23 59 58 22 41 45 24 4 39 22 37 15 -1.44 - 65 0 0 23 14 59 22 54 46.4 14 116 -7 23 54 19 22 36 18 23 58 59 22 31 48 -1.44 - 64 0 0 23 10 21 22 54 41.3 14 117 -7 23 49 36 22 31 44 23 54 16 22 27 15 -1.44 - 63 0 0 23 6 37 22 54 35.8 15 117 -8 23 45 49 22 28 5 23 50 28 22 23 36 -1.44 - 62 0 0 23 3 49 22 54 30.0 16 118 -9 23 42 57 22 25 20 23 47 35 22 20 51 -1.45 - 61 0 0 23 1 55 22 54 24.0 17 118 -10 23 41 0 22 23 28 23 45 38 22 19 0 -1.45 - 60 0 0 23 0 54 22 54 17.7 18 119 -11 23 39 57 22 22 30 23 44 35 22 18 2 -1.45 - 59 0 0 23 0 48 22 54 11.1 18 119 -12 23 39 50 22 22 25 23 44 27 22 17 57 -1.45 - 58 0 0 23 1 36 22 54 4.2 19 120 -13 23 40 37 22 23 13 23 45 14 22 18 46 -1.45 - 57 0 0 23 3 17 22 53 57.1 20 120 -14 23 42 17 22 24 55 23 46 55 22 20 27 -1.45 - 56 0 0 23 5 51 22 53 49.7 21 121 -15 23 44 53 22 27 28 23 49 30 22 23 1 -1.45 - 55 0 0 23 9 19 22 53 42.0 21 121 -15 23 48 21 22 30 55 23 52 59 22 26 27 -1.45 - 54 0 0 23 13 40 22 53 34.2 22 122 -16 23 52 44 22 35 14 23 57 22 22 30 46 -1.45 - 53 0 0 23 18 54 22 53 26.0 23 123 -17 23 58 1 22 40 25 24 2 39 22 35 57 -1.45 - 52 0 0 23 25 0 22 53 17.7 24 123 -18 24 4 11 22 46 29 24 8 49 22 42 0 -1.45 - 51 0 0 23 32 0 22 53 9.0 24 124 -19 24 11 14 22 53 25 24 15 53 22 48 56 -1.46 - 50 0 0 23 39 52 22 53 0.2 25 124 -20 24 19 11 23 1 13 24 23 51 22 56 43 -1.46 - 49 0 0 23 48 37 22 52 51.1 25 125 -20 24 28 2 23 9 53 24 32 42 23 5 23 -1.46 - 48 0 0 23 58 15 22 52 41.9 26 126 -21 24 37 45 23 19 25 24 42 26 23 14 54 -1.46 - 47 0 0 24 8 46 22 52 32.4 27 127 -22 24 48 23 23 29 49 24 53 4 23 25 18 -1.46 - 46 0 0 24 20 9 22 52 22.7 27 127 -23 24 59 53 23 41 5 25 4 36 23 36 33 -1.46 - 45 0 0 24 32 25 22 52 12.8 28 128 -24 25 12 17 23 53 14 25 17 1 23 48 40 -1.46 - 44 0 0 24 45 33 22 52 2.7 28 129 -24 25 25 34 24 6 14 25 30 19 24 1 39 -1.46 - 43 0 0 24 59 34 22 51 52.4 29 130 -25 25 39 45 24 20 6 25 44 31 24 15 30 -1.46 - 42 0 0 25 14 28 22 51 41.9 29 130 -26 25 54 49 24 34 50 25 59 36 24 30 13 -1.46 - 41 0 0 25 30 15 22 51 31.2 30 131 -26 26 10 47 24 50 26 26 15 35 24 45 48 -1.46 - 40 0 0 25 46 54 22 51 20.4 30 132 -27 26 27 38 25 6 54 26 32 28 25 2 15 -1.46 - 39 0 0 26 4 27 22 51 9.4 31 133 -28 26 45 23 25 24 15 26 50 15 25 19 34 -1.46 - 38 0 0 26 22 52 22 50 58.2 31 134 -29 27 4 2 25 42 27 27 8 55 25 37 45 -1.46 - 37 0 0 26 42 10 22 50 46.9 32 135 -29 27 23 35 26 1 32 27 28 30 25 56 49 -1.47 - 36 0 0 27 2 22 22 50 35.4 32 136 -30 27 44 2 26 21 29 27 48 59 26 16 44 -1.47 - 35 0 0 27 23 27 22 50 23.8 32 137 -30 28 5 23 26 42 19 28 10 21 26 37 32 -1.47 - 34 0 0 27 45 25 22 50 12.0 33 138 -31 28 27 38 27 4 1 28 32 39 26 59 13 -1.47 - 33 0 0 28 8 17 22 50 0.1 33 139 -32 28 50 48 27 26 36 28 55 51 27 21 46 -1.47 - 32 0 0 28 32 2 22 49 48.1 33 140 -32 29 14 52 27 50 4 29 19 57 27 45 11 -1.47 - 31 0 0 28 56 41 22 49 35.9 33 141 -33 29 39 51 28 14 24 29 44 59 28 9 29 -1.47 - 30 0 0 29 22 14 22 49 23.7 34 142 -33 30 5 45 28 39 37 30 10 56 28 34 40 -1.47 - 29 0 0 29 48 41 22 49 11.3 34 143 -34 30 32 34 29 5 44 30 37 47 29 0 44 -1.48 - 28 0 0 30 16 3 22 48 58.9 34 144 -34 31 0 19 29 32 43 31 5 35 29 27 41 -1.48 - 27 0 0 30 44 19 22 48 46.4 34 145 -35 31 28 59 30 0 36 31 34 18 29 55 32 -1.48 - 26 0 0 31 13 29 22 48 33.8 34 146 -35 31 58 35 30 29 22 32 3 57 30 24 15 -1.48 - 25 0 0 31 43 34 22 48 21.1 34 147 -36 32 29 7 30 59 2 32 34 32 30 53 52 -1.48 - 24 0 0 32 14 33 22 48 8.4 34 149 -36 33 0 35 31 29 35 33 6 3 31 24 23 -1.48 - 23 0 0 32 46 28 22 47 55.6 34 150 -36 33 32 59 32 1 2 33 38 31 31 55 46 -1.49 - 22 0 0 33 19 18 22 47 42.8 34 151 -37 34 6 20 32 33 23 34 11 56 32 28 4 -1.49 - 21 0 0 33 53 2 22 47 30.0 34 152 -37 34 40 37 33 6 38 34 46 17 33 1 15 -1.49 - 20 0 0 34 27 43 22 47 17.1 34 153 -37 35 15 52 33 40 46 35 21 36 33 35 20 -1.49 - 19 0 0 35 3 19 22 47 4.3 33 154 -37 35 52 4 34 15 49 35 57 52 34 10 19 -1.50 - 18 0 0 35 39 50 22 46 51.4 33 156 -37 36 29 13 34 51 46 36 35 6 34 46 12 -1.50 - 17 0 0 36 17 17 22 46 38.6 33 157 -37 37 7 20 35 28 37 37 13 18 35 22 59 -1.50 - 16 0 0 36 55 41 22 46 25.8 33 158 -38 37 46 24 36 6 22 37 52 28 36 0 40 -1.50 - 15 0 0 37 35 0 22 46 13.0 32 159 -38 38 26 27 36 45 1 38 32 36 36 39 15 -1.50 - 14 0 0 38 15 15 22 46 0.3 32 160 -38 39 7 28 37 24 35 39 13 43 37 18 43 -1.51 - 13 0 0 38 56 27 22 45 47.6 31 161 -38 39 49 28 38 5 3 39 55 49 37 59 6 -1.51 - 12 0 0 39 38 35 22 45 35.1 31 163 -38 40 32 27 38 46 25 40 38 53 38 40 23 -1.51 - 11 0 0 40 21 39 22 45 22.6 31 164 -37 41 16 24 39 28 41 41 22 57 39 22 34 -1.51 - 10 0 0 41 5 39 22 45 10.3 30 165 -37 42 1 20 40 11 50 42 8 0 40 5 38 -1.52 - 9 0 0 41 50 35 22 44 58.0 30 166 -37 42 47 15 40 55 54 42 54 3 40 49 35 -1.52 - 8 0 0 42 36 28 22 44 46.0 29 167 -37 43 34 10 41 40 50 43 41 6 41 34 26 -1.52 - 7 0 0 43 23 17 22 44 34.0 28 168 -37 44 22 5 42 26 41 44 29 9 42 20 10 -1.53 - 6 0 0 44 11 2 22 44 22.3 28 169 -36 45 10 59 43 13 24 45 18 11 43 6 46 -1.53 - 5 0 0 44 59 43 22 44 10.7 27 170 -36 46 0 53 44 1 1 46 8 14 43 54 16 -1.53 - 4 0 0 45 49 19 22 43 59.4 26 172 -35 46 51 46 44 49 29 46 59 17 44 42 37 -1.53 - 3 0 0 46 39 51 22 43 48.2 26 173 -35 47 43 39 45 38 49 47 51 20 45 31 49 -1.54 - 2 0 0 47 31 17 22 43 37.3 25 174 -34 48 36 31 46 29 0 48 44 24 46 21 52 -1.54 - 1 0 0 48 23 38 22 43 26.7 24 175 -34 49 30 24 47 20 2 49 38 28 47 12 45 -1.54 0 0 0 49 16 54 22 43 16.4 23 176 -33 50 25 16 48 11 54 50 33 33 48 4 28 -1.54 1 0 0 50 11 2 22 43 6.3 22 177 -33 51 21 8 49 4 34 51 29 38 48 56 59 -1.55 2 0 0 51 6 4 22 42 56.6 21 178 -32 52 18 0 49 58 3 52 26 44 49 50 17 -1.55 3 0 0 52 1 58 22 42 47.2 20 179 -31 53 15 50 50 52 18 53 24 50 50 44 22 -1.55 4 0 0 52 58 43 22 42 38.1 20 180 -31 54 14 40 51 47 19 54 23 56 51 39 12 -1.56 5 0 0 53 56 19 22 42 29.4 19 181 -30 55 14 28 52 43 5 55 24 1 52 34 46 -1.56 6 0 0 54 54 43 22 42 21.1 18 182 -29 56 15 15 53 39 33 56 25 7 53 31 2 -1.56 7 0 0 55 53 55 22 42 13.2 17 183 -28 57 16 59 54 36 42 57 27 12 54 27 58 -1.56 8 0 0 56 53 54 22 42 5.8 16 184 -27 58 19 41 55 34 30 58 30 16 55 25 32 -1.57 9 0 0 57 54 37 22 41 58.8 14 184 -27 59 23 20 56 32 55 59 34 19 56 23 43 -1.57 10 0 0 58 56 3 22 41 52.2 13 185 -26 60 27 55 57 31 54 60 39 20 57 22 27 -1.58 11 0 1 59 58 10 22 41 46.1 12 186 -25 61 33 26 58 31 25 61 45 19 58 21 42 -1.58 12 0 1 61 0 54 22 41 40.6 11 187 -24 62 39 51 59 31 24 62 52 15 59 21 24 -1.59 13 0 1 62 4 13 22 41 35.5 10 188 -23 63 47 10 60 31 49 64 0 8 60 21 31 -1.59 14 0 1 63 8 5 22 41 30.9 9 189 -22 64 55 20 61 32 34 65 8 56 61 21 57 -1.60 15 0 1 64 12 24 22 41 26.9 8 190 -21 66 4 22 62 33 36 66 18 39 62 22 39 -1.61 16 0 1 65 17 7 22 41 23.4 7 191 -20 67 14 13 63 34 49 67 29 17 63 23 33 -1.63 17 0 1 66 22 8 22 41 20.5 6 192 -19 68 24 51 64 36 10 68 40 48 64 24 32 -1.64 18 0 1 67 27 23 22 41 18.1 4 193 -17 69 36 15 65 37 30 69 53 11 65 25 30 -1.67 19 0 1 68 32 44 22 41 16.3 3 194 -16 70 48 22 66 38 45 71 6 25 66 26 22 -1.72 20 0 1 69 38 5 22 41 15.1 2 195 -15 .. .. .. 67 39 46 .. .. .. 67 26 59 -1.82 21 0 1 70 43 16 22 41 14.4 1 196 -14 .. .. .. 68 40 27 .. .. .. 68 27 15 -2.15 22 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 69 40 37 .. .. .. 69 27 0 .... 23 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 70 40 7 .. .. .. 70 26 5 .... 24 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 71 24 21 .... Uncertainty in time = +/- 2 secs Prediction of 2023 Aug 27.0 Data for the target star ------------------------ * name: TYC 6381-00674-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 22 13 25.6482 DE: -17 45 29.990 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 22 13 25.6481 DE: -17 45 29.991 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (213) Lilaea asteroid class: approx. diameter [km]: 80 approx. diameter ["]: 0.073 distance from Earth [AU]: 1.49960 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#129 date of fit: 2023 Aug 22 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): 0.018", 0.000", 75.313° remarks: * orbital elements for (213)Lilaea : Mean anomaly = 39.5725951284 deg Arg. of pericenter = 162.5536083924 deg Long. of node = 122.0169591069 deg Inclination = 6.8010710416 deg Eccentricity = 0.1441064519 Semimajor axis = 2.7526947790 AU Perihelion dist = 2.3560137012 AU Mag: H = 9.15, G = 0.15 Epoch of elements : MJD 60196.95006944 TDT (2023 Sep 09.9501) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1292023Aug22,9.55,2023,9,9,22.805028,-0.394541,0.728186,-4.143449,-2.245314,0.001351,0.001140,0.000001,0.000000 2.8842,-17.6403,-162.76,5.13,False TYC 6381-00674-1,22.22379116,-17.7583305,0.00,11.45,0.00,0.0,0,,22.24555100,-17.6403021,1.32,0.00,0,0,0 213,Lilaea,12.39,79.700,1.4996,0,0,-1.699,-13.16,,4.0,0 0,39.3676,2023,9,9,162.5536,122.0170,6.8011,0.14411,2.75269,2.35601,9.00,5.0,0.15 1.059,0.0180,0.0004,75,0.0180,Known errors,-1.00,0,-1,-1 20230909_0674-1,60182.99 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 26, 23:42 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org