IOTA/IOTA-ES occultation update for (19129) Loos / UCAC4 335-202929 event on 2024 Jun 05, 20:40 UT Visible from Summary ------- On 2024 Jun 05 UT, the 10.8869541993413 km diameter asteroid (19129) Loos will occult a 9.5 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 8.93 mag to 18.47 mag (the magnitude of the asteroid) for at most 1.240 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: 83 * date and approx. time of event: 2024 Jun 05, 20:33 - 2024 Jun 05, 20:48 * geocentric midpoint of event [JD]: 2460467.36160630 * magnitude of target star: 9.54 * magnitude drop [mag]: 8.93 * estimated maximum duration [s]: 1.240 * Moon: 1 % sunlit, 137° distance * Sun: 146° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 19 * 1 sigma uncertainty interval [path widths]: +/- 0.64 * 1 sigma uncertainty interval [seconds]: +/- 2.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.002", 86°) * approx speed of asteroid's shadow [km/s]: 8.8834 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 335-202929 by 19129 Loos on 2024 Jun 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 10 0 0 30 49 50 20 47 40.2 1 118 -26 30 55 42 30 43 59 31 3 11 30 36 34 .... 11 0 0 30 24 16 20 47 39.9 2 118 -26 30 30 5 30 18 28 30 37 31 30 11 6 -0.86 12 0 0 29 59 35 20 47 39.1 3 119 -27 30 5 21 29 53 49 30 12 43 29 46 30 -1.08 13 0 0 29 35 44 20 47 38.1 4 119 -28 29 41 28 29 30 1 29 48 48 29 22 46 -1.17 14 0 0 29 12 46 20 47 36.6 4 119 -29 29 18 28 29 7 6 29 25 44 28 59 53 -1.23 15 0 0 28 50 39 20 47 34.9 5 120 -30 28 56 18 28 45 1 29 3 32 28 37 51 -1.26 16 0 0 28 29 24 20 47 32.9 6 120 -30 28 35 1 28 23 48 28 42 11 28 16 41 -1.29 17 0 0 28 9 0 20 47 30.5 7 121 -31 28 14 34 28 3 26 28 21 42 27 56 22 -1.31 18 0 0 27 49 26 20 47 27.8 8 121 -32 27 54 59 27 43 54 28 2 4 27 36 53 -1.32 19 0 0 27 30 44 20 47 24.8 9 122 -33 27 36 15 27 25 14 27 43 17 27 18 15 -1.33 20 0 0 27 12 52 20 47 21.5 10 122 -33 27 18 21 27 7 24 27 25 21 27 0 27 -1.34 21 0 0 26 55 51 20 47 18.0 11 123 -34 27 1 18 26 50 24 27 8 16 26 43 30 -1.35 22 0 0 26 39 40 20 47 14.1 12 123 -35 26 45 5 26 34 15 26 52 1 26 27 22 -1.35 23 0 0 26 24 19 20 47 9.9 13 124 -35 26 29 43 26 18 55 26 36 36 26 12 5 -1.36 24 0 0 26 9 47 20 47 5.5 14 124 -36 26 15 10 26 4 26 26 22 2 25 57 37 -1.36 25 0 0 25 56 6 20 47 0.8 14 125 -37 26 1 27 25 50 46 26 8 17 25 43 59 -1.36 26 0 0 25 43 14 20 46 55.8 15 125 -37 25 48 34 25 37 55 25 55 22 25 31 9 -1.37 27 0 0 25 31 11 20 46 50.6 16 126 -38 25 36 29 25 25 53 25 43 16 25 19 9 -1.37 28 0 0 25 19 57 20 46 45.1 17 126 -38 25 25 14 25 14 40 25 31 59 25 7 58 -1.37 29 0 0 25 9 32 20 46 39.4 18 127 -39 25 14 48 25 4 16 25 21 32 24 57 35 -1.37 30 0 0 24 59 55 20 46 33.4 18 128 -39 25 5 11 24 54 40 25 11 53 24 48 1 -1.37 31 0 0 24 51 7 20 46 27.1 19 128 -40 24 56 22 24 45 53 25 3 3 24 39 15 -1.37 32 0 0 24 43 7 20 46 20.7 20 129 -40 24 48 21 24 37 54 24 55 1 24 31 17 -1.38 33 0 0 24 35 56 20 46 14.0 21 129 -41 24 41 9 24 30 44 24 47 48 24 24 7 -1.38 34 0 0 24 29 32 20 46 7.1 22 130 -41 24 34 44 24 24 21 24 41 23 24 17 45 -1.38 35 0 0 24 23 56 20 45 59.9 22 130 -41 24 29 8 24 18 45 24 35 46 24 12 10 -1.38 36 0 0 24 19 8 20 45 52.6 23 131 -42 24 24 19 24 13 58 24 30 56 24 7 23 -1.38 37 0 0 24 15 7 20 45 45.0 24 132 -42 24 20 18 24 9 57 24 26 54 24 3 24 -1.38 38 0 0 24 11 54 20 45 37.3 24 132 -42 24 17 4 24 6 44 24 23 40 24 0 11 -1.38 39 0 0 24 9 27 20 45 29.3 25 133 -42 24 14 37 24 4 18 24 21 13 23 57 45 -1.38 40 0 0 24 7 48 20 45 21.2 26 134 -43 24 12 58 24 2 39 24 19 33 23 56 7 -1.38 41 0 0 24 6 56 20 45 12.8 26 134 -43 24 12 5 24 1 47 24 18 40 23 55 15 -1.38 42 0 0 24 6 50 20 45 4.3 27 135 -43 24 12 0 24 1 42 24 18 34 23 55 9 -1.38 43 0 0 24 7 32 20 44 55.6 28 136 -43 24 12 41 24 2 23 24 19 16 23 55 51 -1.38 44 0 0 24 8 59 20 44 46.8 28 136 -43 24 14 9 24 3 51 24 20 43 23 57 19 -1.38 45 0 0 24 11 14 20 44 37.7 29 137 -43 24 16 23 24 6 5 24 22 58 23 59 33 -1.38 46 0 0 24 14 15 20 44 28.6 29 138 -43 24 19 24 24 9 6 24 25 59 24 2 33 -1.38 47 0 0 24 18 2 20 44 19.2 30 139 -43 24 23 12 24 12 53 24 29 47 24 6 20 -1.38 48 0 0 24 22 36 20 44 9.7 30 140 -43 24 27 46 24 17 26 24 34 21 24 10 53 -1.38 49 0 0 24 27 55 20 44 0.1 31 140 -43 24 33 6 24 22 46 24 39 42 24 16 12 -1.38 50 0 0 24 34 1 20 43 50.3 31 141 -43 24 39 12 24 28 51 24 45 49 24 22 17 -1.38 51 0 0 24 40 53 20 43 40.4 32 142 -43 24 46 4 24 35 42 24 52 42 24 29 8 -1.38 52 0 0 24 48 31 20 43 30.3 32 143 -43 24 53 43 24 43 19 25 0 21 24 36 44 -1.38 53 0 0 24 56 55 20 43 20.2 33 144 -42 25 2 7 24 51 43 25 8 46 24 45 6 -1.38 54 0 0 25 6 4 20 43 9.9 33 145 -42 25 11 18 25 0 52 25 17 57 24 54 14 -1.39 55 0 0 25 16 0 20 42 59.5 33 146 -42 25 21 14 25 10 46 25 27 55 25 4 8 -1.39 56 0 0 25 26 41 20 42 49.0 34 147 -42 25 31 56 25 21 27 25 38 38 25 14 48 -1.39 57 0 0 25 38 8 20 42 38.4 34 148 -41 25 43 24 25 32 53 25 50 7 25 26 13 -1.39 58 0 0 25 50 21 20 42 27.7 34 149 -41 25 55 38 25 45 5 26 2 23 25 38 24 -1.39 59 0 0 26 3 20 20 42 16.9 35 150 -40 26 8 38 25 58 3 26 15 24 25 51 20 -1.39 60 0 0 26 17 5 20 42 6.1 35 151 -40 26 22 24 26 11 47 26 29 12 26 5 2 -1.39 61 0 0 26 31 36 20 41 55.1 35 152 -40 26 36 56 26 26 16 26 43 45 26 19 30 -1.39 62 0 0 26 46 52 20 41 44.1 35 153 -39 26 52 14 26 41 31 26 59 5 26 34 44 -1.39 63 0 0 27 2 55 20 41 33.0 35 154 -39 27 8 18 26 57 32 27 15 10 26 50 43 -1.39 64 0 0 27 19 42 20 41 21.9 35 155 -38 27 25 7 27 14 19 27 32 1 27 7 27 -1.39 65 0 0 27 37 16 20 41 10.7 35 156 -38 27 42 42 27 31 51 27 49 38 27 24 58 -1.39 66 0 0 27 55 35 20 40 59.5 36 157 -37 28 1 3 27 50 9 28 8 2 27 43 13 -1.40 67 0 0 28 14 41 20 40 48.2 36 158 -36 28 20 10 28 9 12 28 27 11 28 2 15 -1.40 68 0 0 28 34 32 20 40 36.9 36 159 -36 28 40 3 28 29 1 28 47 6 28 22 2 -1.40 69 0 0 28 55 8 20 40 25.6 36 160 -35 29 0 41 28 49 36 29 7 46 28 42 34 -1.40 70 0 0 29 16 30 20 40 14.3 35 161 -35 29 22 5 29 10 56 29 29 13 29 3 52 -1.40 71 0 0 29 38 38 20 40 3.0 35 163 -34 29 44 16 29 33 2 29 51 26 29 25 55 -1.40 72 0 0 30 1 32 20 39 51.6 35 164 -33 30 7 11 29 55 53 30 14 24 29 48 43 -1.40 73 0 0 30 25 10 20 39 40.3 35 165 -33 30 30 52 30 19 30 30 38 8 30 12 17 -1.40 74 0 0 30 49 34 20 39 29.0 35 166 -32 30 55 18 30 43 51 31 2 38 30 36 36 -1.41 75 0 0 31 14 44 20 39 17.7 35 167 -31 31 20 31 31 8 59 31 27 53 31 1 40 -1.41 76 0 0 31 40 39 20 39 6.5 34 168 -30 31 46 28 31 34 51 31 53 54 31 27 29 -1.41 77 0 0 32 7 18 20 38 55.2 34 169 -30 32 13 10 32 1 28 32 20 39 31 54 3 -1.41 78 0 0 32 34 43 20 38 44.1 34 170 -29 32 40 37 32 28 50 32 48 10 32 21 21 -1.41 79 0 0 33 2 53 20 38 33.0 34 171 -28 33 8 50 32 56 57 33 16 27 32 49 25 -1.41 80 0 0 33 31 48 20 38 22.0 33 172 -27 33 37 49 33 25 49 33 45 29 33 18 13 -1.42 81 0 0 34 1 28 20 38 11.0 33 174 -26 34 7 31 33 55 26 34 15 16 33 47 46 -1.42 82 0 0 34 31 52 20 38 0.1 32 175 -25 34 37 59 34 25 47 34 45 47 34 18 3 -1.42 83 0 0 35 3 1 20 37 49.4 32 176 -25 35 9 10 34 56 52 35 17 3 34 49 4 -1.42 84 0 0 35 34 53 20 37 38.7 31 177 -24 35 41 6 35 28 41 35 49 3 35 20 48 -1.42 85 0 0 36 7 29 20 37 28.1 31 178 -23 36 13 46 36 1 13 36 21 48 35 53 16 -1.42 86 0 0 36 40 48 20 37 17.7 30 179 -22 36 47 9 36 34 29 36 55 16 36 26 27 -1.43 87 0 0 37 14 51 20 37 7.4 30 180 -21 37 21 15 37 8 28 37 29 27 37 0 21 -1.43 88 0 0 37 49 36 20 36 57.3 29 181 -20 37 56 4 37 43 9 38 4 21 37 34 57 -1.43 89 0 0 38 25 3 20 36 47.3 29 182 -19 38 31 36 38 18 32 38 39 58 38 10 15 -1.43 90 0 0 39 1 12 20 36 37.5 28 183 -18 39 7 49 38 54 37 39 16 17 38 46 15 -1.43 91 0 0 39 38 3 20 36 27.9 27 184 -17 39 44 44 39 31 23 39 53 17 39 22 55 -1.44 92 0 0 40 15 33 20 36 18.4 27 185 -16 40 22 19 40 8 49 40 30 58 40 0 16 -1.44 93 0 0 40 53 43 20 36 9.2 26 186 -15 41 0 34 40 46 54 41 9 19 40 38 16 -1.44 94 0 0 41 32 33 20 36 0.2 25 187 -14 41 39 28 41 25 39 41 48 20 41 16 54 -1.44 95 0 0 42 12 1 20 35 51.3 25 188 -13 42 19 1 42 5 2 42 27 59 41 56 11 -1.44 96 0 0 42 52 6 20 35 42.8 24 189 -12 42 59 12 42 45 2 43 8 17 42 36 5 -1.45 97 0 0 43 32 48 20 35 34.4 23 189 -11 43 39 59 43 25 39 43 49 11 43 16 35 -1.45 98 0 0 44 14 6 20 35 26.3 22 190 -11 44 21 23 44 6 51 44 30 41 43 57 41 -1.45 99 0 0 44 55 58 20 35 18.5 21 191 -10 45 3 20 44 48 38 45 12 46 44 39 20 -1.45 100 0 0 45 38 24 20 35 11.0 21 192 -9 45 45 52 45 30 58 45 55 25 45 21 33 -1.45 101 0 0 46 21 22 20 35 3.7 20 193 -8 46 28 56 46 13 50 46 38 37 46 4 17 -1.46 102 0 0 47 4 50 20 34 56.7 19 194 -7 47 12 30 46 57 12 47 22 19 46 47 32 -1.46 103 0 0 47 48 48 20 34 50.0 18 195 -6 47 56 34 47 41 4 48 6 32 47 31 16 -1.46 104 0 0 48 33 13 20 34 43.7 17 196 -5 48 41 6 48 25 22 48 51 12 48 15 26 -1.46 105 0 0 49 18 4 20 34 37.6 16 197 -4 49 26 4 49 10 7 49 36 18 49 0 3 -1.46 106 0 0 50 3 19 20 34 31.9 15 197 -3 50 11 26 49 55 16 50 21 49 49 45 3 -1.47 107 0 0 50 48 57 20 34 26.5 14 198 -2 50 57 10 50 40 46 51 7 42 50 30 25 -1.47 108 0 0 51 34 54 20 34 21.5 13 199 -1 51 43 14 51 26 36 51 53 55 51 16 6 -1.47 109 0 0 52 21 8 20 34 16.8 13 200 0 52 29 36 52 12 44 52 40 26 52 2 5 -1.47 110 0 0 53 7 39 20 34 12.4 12 201 1 53 16 13 52 59 7 53 27 13 52 48 19 -1.48 111 0 0 53 54 21 20 34 8.4 11 202 2 54 3 3 53 45 42 54 14 13 53 34 46 -1.48 112 0 0 54 41 14 20 34 4.7 10 202 3 54 50 4 54 32 28 55 1 23 54 21 22 -1.48 113 0 0 55 28 15 20 34 1.4 9 203 4 55 37 12 55 19 21 55 48 41 55 8 6 -1.49 114 0 0 56 15 20 20 33 58.5 8 204 5 56 24 24 56 6 18 56 36 3 55 54 54 -1.49 115 0 0 57 2 25 20 33 55.9 7 205 6 57 11 38 56 53 17 57 23 26 56 41 44 -1.50 116 0 0 57 49 30 20 33 53.6 6 206 7 57 58 49 57 40 14 58 10 48 57 28 31 -1.51 117 0 0 58 36 29 20 33 51.7 5 207 7 58 45 56 58 27 5 58 58 4 58 15 14 -1.52 118 0 0 59 23 19 20 33 50.2 4 208 8 59 32 53 59 13 48 59 45 11 59 1 48 -1.53 119 0 0 60 9 57 20 33 48.9 3 208 9 60 19 39 60 0 19 60 32 6 59 48 9 -1.56 120 0 0 60 56 19 20 33 48.1 2 209 10 61 6 8 60 46 34 61 18 44 60 34 16 -1.60 121 0 0 61 42 21 20 33 47.5 1 210 11 61 52 17 61 32 30 62 5 3 61 20 3 -1.71 122 0 0 62 28 0 20 33 47.2 0 211 12 62 38 2 62 18 2 62 50 57 62 5 27 -2.22 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: UCAC4 335-202929 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 23 15.9091 DE: -23 05 24.845 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 23 15.9092 DE: -23 05 24.845 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.5 * B mag [mag]: 10.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (19129) Loos asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.007 distance from Earth [AU]: 2.09640 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#42 date of fit: 2023 Apr 25 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): 0.014", 0.002", 85.8° remarks: * orbital elements for (19129)Loos : Mean anomaly = 166.5646406958 deg Arg. of pericenter = 17.3630828012 deg Long. of node = 91.2782931698 deg Inclination = 5.8685396805 deg Eccentricity = 0.1336522401 Semimajor axis = 2.6473075714 AU Perihelion dist = 2.2934889841 AU Mag: H = 13.80, G = 0.15 Epoch of elements : MJD 60466.86160662 TDT (2024 Jun 05.8616) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#422023Apr25,1.24,2024,6,5,20.678551,-0.283171,0.761363,-4.699745,-1.747208,-0.003128,-0.000372,0.000001,0.000000 86.2474,-23.0431,-130.51,22.67,False UCAC4 335-202929,19.38775253,-23.0902347,10.06,9.54,9.26,0.1,0,,19.41249146,-23.0431070,8.93,8.76,0,0,0 19129,Loos,18.47,11.039,2.0964,0,0,-1.428,-7.33,,1.0,0 0,166.3675,2024,6,5,17.3631,91.2783,5.8685,0.13365,2.64731,2.29349,13.80,5.0,0.15 1.637,0.0143,0.0024,86,0.0046,Known errors,1.05,0,-1,-1 20240605_202929,60139.37 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 08:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org