IOTA/IOTA-ES occultation update for (1010) Marlene / UCAC4 349-084978 event on 2022 Jun 03, 07:24 UT Visible from S USA, Mexico Summary ------- On 2022 Jun 03 UT, the 44.8 km diameter asteroid (1010) Marlene will occult a 13.6 mag star in the constellation Ophiuchus for observers along a path across S USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.62 mag to 14.94 mag (the magnitude of the asteroid) for at most 3.480 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 Jun 03, 07:18 - 2022 Jun 03, 07:29 * geocentric midpoint of event [JD]: 2459733.80841821 * magnitude of target star: 13.60 * magnitude drop [mag]: 1.62 * estimated maximum duration [s]: 3.480 * Moon: 13 % sunlit, 140° distance * Sun: 176° distance * rough path description: S USA, Mexico The occultation path -------------------- * approximate projected width [km]: 72 * 1 sigma uncertainty interval [path widths]: +/- 0.19 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.005", 99°) * approx speed of asteroid's shadow [km/s]: 12.8813 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 349-084978 by 1010 Marlene on 2022 Jun 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 ' " Latitude Latitude Latitude Latitude -173 0 0 48 59 19 7 29 11.8 1 123 -1 49 22 52 48 36 2 49 31 48 48 27 18 .... -172 0 0 48 34 42 7 29 11.6 1 123 -2 48 58 11 48 11 28 49 7 5 48 2 46 -0.76 -171 0 0 48 10 9 7 29 11.3 2 124 -3 48 33 33 47 46 59 48 42 26 47 38 18 -0.95 -170 0 0 47 45 39 7 29 10.8 3 125 -3 48 8 59 47 22 33 48 17 51 47 13 54 -1.04 -169 0 0 47 21 14 7 29 10.2 4 126 -4 47 44 30 46 58 13 47 53 20 46 49 35 -1.10 -168 0 0 46 56 56 7 29 9.4 5 126 -5 47 20 7 46 33 58 47 28 55 46 25 22 -1.13 -167 0 0 46 32 43 7 29 8.5 5 127 -6 46 55 50 46 9 50 47 4 37 46 1 16 -1.16 -166 0 0 46 8 39 7 29 7.4 6 128 -6 46 31 41 45 45 50 46 40 26 45 37 17 -1.18 -165 0 0 45 44 42 7 29 6.1 7 128 -7 46 7 40 45 21 58 46 16 23 45 13 27 -1.19 -164 0 0 45 20 55 7 29 4.7 8 129 -8 45 43 48 44 58 15 45 52 29 44 49 45 -1.20 -163 0 0 44 57 17 7 29 3.1 8 130 -9 45 20 5 44 34 42 45 28 45 44 26 14 -1.21 -162 0 0 44 33 50 7 29 1.4 9 131 -10 44 56 34 44 11 19 45 5 11 44 2 53 -1.22 -161 0 0 44 10 34 7 28 59.5 10 131 -10 44 33 13 43 48 8 44 41 49 43 39 43 -1.22 -160 0 0 43 47 30 7 28 57.4 11 132 -11 44 10 4 43 25 8 44 18 38 43 16 46 -1.23 -159 0 0 43 24 39 7 28 55.2 12 133 -12 43 47 8 43 2 22 43 55 40 42 54 1 -1.23 -158 0 0 43 2 1 7 28 52.9 12 134 -13 43 24 26 42 39 49 43 32 56 42 31 30 -1.24 -157 0 0 42 39 37 7 28 50.3 13 134 -13 43 1 57 42 17 30 43 10 25 42 9 12 -1.24 -156 0 0 42 17 28 7 28 47.6 14 135 -14 42 39 43 41 55 25 42 48 10 41 47 10 -1.25 -155 0 0 41 55 34 7 28 44.8 15 136 -15 42 17 45 41 33 36 42 26 10 41 25 22 -1.25 -154 0 0 41 33 57 7 28 41.8 16 136 -16 41 56 2 41 12 3 42 4 25 41 3 51 -1.25 -153 0 0 41 12 36 7 28 38.7 16 137 -16 41 34 37 40 50 47 41 42 58 40 42 36 -1.25 -152 0 0 40 51 32 7 28 35.4 17 138 -17 41 13 28 40 29 48 41 21 47 40 21 39 -1.25 -151 0 0 40 30 46 7 28 31.9 18 139 -18 40 52 37 40 9 6 41 0 55 40 0 59 -1.26 -150 0 0 40 10 18 7 28 28.3 19 139 -19 40 32 5 39 48 43 40 40 20 39 40 37 -1.26 -149 0 0 39 50 9 7 28 24.5 19 140 -19 40 11 51 39 28 38 40 20 5 39 20 34 -1.26 -148 0 0 39 30 19 7 28 20.7 20 141 -20 39 51 57 39 8 53 40 0 9 39 0 51 -1.26 -147 0 0 39 10 49 7 28 16.6 21 142 -21 39 32 23 38 49 27 39 40 33 38 41 27 -1.26 -146 0 0 38 51 40 7 28 12.4 22 142 -21 39 13 9 38 30 22 39 21 17 38 22 23 -1.26 -145 0 0 38 32 51 7 28 8.1 22 143 -22 38 54 16 38 11 38 39 2 23 38 3 41 -1.26 -144 0 0 38 14 24 7 28 3.7 23 144 -23 38 35 44 37 53 14 38 43 49 37 45 19 -1.27 -143 0 0 37 56 18 7 27 59.1 24 145 -23 38 17 34 37 35 13 38 25 37 37 27 19 -1.27 -142 0 0 37 38 34 7 27 54.4 24 146 -24 37 59 46 37 17 33 38 7 48 37 9 40 -1.27 -141 0 0 37 21 13 7 27 49.5 25 146 -25 37 42 20 37 0 16 37 50 21 36 52 24 -1.27 -140 0 0 37 4 14 7 27 44.6 26 147 -25 37 25 18 36 43 21 37 33 17 36 35 31 -1.27 -139 0 0 36 47 39 7 27 39.5 26 148 -26 37 8 38 36 26 49 37 16 36 36 19 1 -1.27 -138 0 0 36 31 27 7 27 34.3 27 149 -26 36 52 22 36 10 41 37 0 19 36 2 54 -1.27 -137 0 0 36 15 39 7 27 28.9 28 150 -27 36 36 31 35 54 57 36 44 25 35 47 11 -1.27 -136 0 0 36 0 15 7 27 23.5 28 151 -28 36 21 3 35 39 36 36 28 56 35 31 52 -1.27 -135 0 0 35 45 15 7 27 18.0 29 152 -28 36 6 0 35 24 40 36 13 52 35 16 58 -1.27 -134 0 0 35 30 41 7 27 12.3 29 153 -29 35 51 22 35 10 9 35 59 13 35 2 27 -1.27 -133 0 0 35 16 31 7 27 6.6 30 153 -29 35 37 9 34 56 3 35 44 58 34 48 22 -1.27 -132 0 0 35 2 47 7 27 0.7 30 154 -30 35 23 21 34 42 22 35 31 9 34 34 42 -1.27 -131 0 0 34 49 28 7 26 54.8 31 155 -30 35 9 59 34 29 6 35 17 46 34 21 28 -1.27 -130 0 0 34 36 35 7 26 48.7 32 156 -31 34 57 3 34 16 16 35 4 49 34 8 39 -1.27 -129 0 0 34 24 8 7 26 42.6 32 157 -31 34 44 33 34 3 52 34 52 17 33 56 16 -1.27 -128 0 0 34 12 7 7 26 36.4 33 158 -32 34 32 29 33 51 54 34 40 13 33 44 19 -1.27 -127 0 0 34 0 32 7 26 30.1 33 159 -32 34 20 52 33 40 22 34 28 34 33 32 48 -1.27 -126 0 0 33 49 24 7 26 23.7 33 160 -32 34 9 41 33 29 16 34 17 23 33 21 44 -1.27 -125 0 0 33 38 43 7 26 17.3 34 161 -33 33 58 58 33 18 38 34 6 38 33 11 6 -1.27 -124 0 0 33 28 29 7 26 10.8 34 162 -33 33 48 41 33 8 26 33 56 20 33 0 55 -1.27 -123 0 0 33 18 42 7 26 4.2 35 163 -34 33 38 51 32 58 41 33 46 30 32 51 11 -1.27 -122 0 0 33 9 22 7 25 57.5 35 164 -34 33 29 29 32 49 23 33 37 7 32 41 54 -1.27 -121 0 0 33 0 29 7 25 50.8 35 165 -34 33 20 35 32 40 33 33 28 11 32 33 4 -1.27 -120 0 0 32 52 4 7 25 44.1 36 166 -34 33 12 8 32 32 10 33 19 44 32 24 42 -1.27 -119 0 0 32 44 7 7 25 37.3 36 167 -35 33 4 8 32 24 15 33 11 44 32 16 47 -1.27 -118 0 0 32 36 37 7 25 30.4 36 169 -35 32 56 37 32 16 47 33 4 12 32 9 20 -1.27 -117 0 0 32 29 36 7 25 23.5 37 170 -35 32 49 34 32 9 47 32 57 8 32 2 21 -1.27 -116 0 0 32 23 2 7 25 16.5 37 171 -35 32 42 58 32 3 14 32 50 32 31 55 49 -1.27 -115 0 0 32 16 56 7 25 9.6 37 172 -35 32 36 51 31 57 10 32 44 24 31 49 45 -1.27 -114 0 0 32 11 19 7 25 2.6 37 173 -36 32 31 12 31 51 34 32 38 44 31 44 9 -1.27 -113 0 0 32 6 9 7 24 55.5 38 174 -36 32 26 2 31 46 26 32 33 33 31 39 2 -1.27 -112 0 0 32 1 28 7 24 48.4 38 175 -36 32 21 19 31 41 46 32 28 51 31 34 22 -1.28 -111 0 0 31 57 15 7 24 41.4 38 176 -36 32 17 6 31 37 34 32 24 37 31 30 11 -1.28 -110 0 0 31 53 31 7 24 34.2 38 178 -36 32 13 20 31 33 50 32 20 51 31 26 27 -1.28 -109 0 0 31 50 15 7 24 27.1 38 179 -36 32 10 4 31 30 35 32 17 34 31 23 13 -1.28 -108 0 0 31 47 28 7 24 20.0 38 180 -36 32 7 16 31 27 49 32 14 46 31 20 26 -1.28 -107 0 0 31 45 9 7 24 12.9 38 181 -36 32 4 56 31 25 30 32 12 26 31 18 8 -1.28 -106 0 0 31 43 19 7 24 5.7 38 182 -36 32 3 6 31 23 41 32 10 36 31 16 18 -1.28 -105 0 0 31 41 57 7 23 58.6 38 183 -36 32 1 44 31 22 19 32 9 14 31 14 57 -1.28 -104 0 0 31 41 4 7 23 51.4 38 185 -36 32 0 51 31 21 26 32 8 20 31 14 5 -1.28 -103 0 0 31 40 40 7 23 44.3 38 186 -36 32 0 26 31 21 2 32 7 56 31 13 40 -1.28 -102 0 0 31 40 44 7 23 37.2 38 187 -35 32 0 31 31 21 6 32 8 0 31 13 45 -1.28 -101 0 0 31 41 17 7 23 30.1 38 188 -35 32 1 4 31 21 39 32 8 34 31 14 17 -1.28 -100 0 0 31 42 19 7 23 23.0 38 189 -35 32 2 6 31 22 41 32 9 36 31 15 19 -1.28 - 99 0 0 31 43 49 7 23 16.0 37 190 -35 32 3 36 31 24 11 32 11 6 31 16 48 -1.28 - 98 0 0 31 45 48 7 23 8.9 37 191 -35 32 5 36 31 26 9 32 13 6 31 18 47 -1.28 - 97 0 0 31 48 16 7 23 1.9 37 192 -34 32 8 4 31 28 36 32 15 34 31 21 13 -1.28 - 96 0 0 31 51 12 7 22 55.0 37 194 -34 32 11 1 31 31 31 32 18 32 31 24 9 -1.28 - 95 0 0 31 54 37 7 22 48.0 37 195 -34 32 14 27 31 34 55 32 21 57 31 27 32 -1.28 - 94 0 0 31 58 30 7 22 41.2 36 196 -33 32 18 21 31 38 48 32 25 52 31 31 24 -1.28 - 93 0 0 32 2 52 7 22 34.3 36 197 -33 32 22 44 31 43 8 32 30 15 31 35 44 -1.28 - 92 0 0 32 7 42 7 22 27.5 36 198 -33 32 27 35 31 47 57 32 35 7 31 40 33 -1.28 - 91 0 0 32 13 0 7 22 20.8 35 199 -32 32 32 55 31 53 14 32 40 27 31 45 50 -1.28 - 90 0 0 32 18 47 7 22 14.1 35 200 -32 32 38 43 31 59 0 32 46 16 31 51 35 -1.28 - 89 0 0 32 25 2 7 22 7.5 35 201 -31 32 45 0 32 5 13 32 52 33 31 57 48 -1.28 - 88 0 0 32 31 45 7 22 1.0 34 202 -31 32 51 44 32 11 55 32 59 19 32 4 29 -1.29 - 87 0 0 32 38 57 7 21 54.5 34 203 -31 32 58 57 32 19 5 33 6 33 32 11 38 -1.29 - 86 0 0 32 46 36 7 21 48.1 33 204 -30 33 6 39 32 26 42 33 14 14 32 19 14 -1.29 - 85 0 0 32 54 43 7 21 41.7 33 205 -30 33 14 48 32 34 47 33 22 24 32 27 19 -1.29 - 84 0 0 33 3 18 7 21 35.5 32 206 -29 33 23 25 32 43 20 33 31 2 32 35 51 -1.29 - 83 0 0 33 12 20 7 21 29.3 32 207 -29 33 32 30 32 52 21 33 40 8 32 44 50 -1.29 - 82 0 0 33 21 51 7 21 23.2 31 208 -28 33 42 2 33 1 48 33 49 41 32 54 17 -1.29 - 81 0 0 33 31 48 7 21 17.2 31 209 -27 33 52 2 33 11 43 33 59 42 33 4 12 -1.29 - 80 0 0 33 42 13 7 21 11.3 30 210 -27 34 2 29 33 22 6 34 10 10 33 14 33 -1.29 - 79 0 0 33 53 4 7 21 5.5 30 211 -26 34 13 23 33 32 55 34 21 5 33 25 21 -1.29 - 78 0 0 34 4 23 7 20 59.7 29 211 -26 34 24 45 33 44 11 34 32 28 33 36 36 -1.29 - 77 0 0 34 16 9 7 20 54.1 28 212 -25 34 36 33 33 55 53 34 44 17 33 48 18 -1.29 - 76 0 0 34 28 21 7 20 48.6 28 213 -24 34 48 48 34 8 3 34 56 33 34 0 26 -1.29 - 75 0 0 34 40 59 7 20 43.2 27 214 -24 35 1 30 34 20 38 35 9 16 34 13 0 -1.30 - 74 0 0 34 54 3 7 20 37.9 27 215 -23 35 14 37 34 33 39 35 22 25 34 26 0 -1.30 - 73 0 0 35 7 34 7 20 32.8 26 216 -23 35 28 11 34 47 6 35 36 0 34 39 26 -1.30 - 72 0 0 35 21 30 7 20 27.7 25 217 -22 35 42 10 35 0 59 35 50 1 34 53 18 -1.30 - 71 0 0 35 35 51 7 20 22.8 25 217 -21 35 56 35 35 15 17 36 4 27 35 7 35 -1.30 - 70 0 0 35 50 38 7 20 18.0 24 218 -20 36 11 25 35 30 1 36 19 18 35 22 17 -1.30 - 69 0 0 36 5 50 7 20 13.3 23 219 -20 36 26 41 35 45 9 36 34 35 35 37 23 -1.30 - 68 0 0 36 21 26 7 20 8.7 23 220 -19 36 42 21 36 0 41 36 50 16 35 52 54 -1.30 - 67 0 0 36 37 26 7 20 4.3 22 220 -18 36 58 25 36 16 38 37 6 22 36 8 50 -1.30 - 66 0 0 36 53 51 7 20 0.0 21 221 -18 37 14 53 36 32 58 37 22 52 36 25 9 -1.30 - 65 0 0 37 10 39 7 19 55.9 20 222 -17 37 31 45 36 49 43 37 39 46 36 41 52 -1.30 - 64 0 0 37 27 50 7 19 51.9 20 223 -16 37 49 1 37 6 50 37 57 3 36 58 58 -1.31 - 63 0 0 37 45 24 7 19 48.1 19 223 -15 38 6 39 37 24 20 38 14 43 37 16 26 -1.31 - 62 0 0 38 3 21 7 19 44.3 18 224 -15 38 24 40 37 42 13 38 32 46 37 34 18 -1.31 - 61 0 0 38 21 40 7 19 40.8 17 225 -14 38 43 4 38 0 28 38 51 11 37 52 31 -1.31 - 60 0 0 38 40 21 7 19 37.4 17 226 -13 39 1 49 38 19 4 39 9 57 38 11 6 -1.31 - 59 0 0 38 59 23 7 19 34.1 16 226 -12 39 20 55 38 38 2 39 29 6 38 30 2 -1.31 - 58 0 0 39 18 46 7 19 31.0 15 227 -11 39 40 23 38 57 20 39 48 35 38 49 19 -1.31 - 57 0 0 39 38 29 7 19 28.1 14 228 -11 40 0 10 39 16 59 40 8 24 39 8 56 -1.32 - 56 0 0 39 58 32 7 19 25.3 14 228 -10 40 20 18 39 36 58 40 28 34 39 28 53 -1.32 - 55 0 0 40 18 55 7 19 22.6 13 229 -9 40 40 45 39 57 16 40 49 2 39 49 9 -1.32 - 54 0 0 40 39 36 7 19 20.2 12 230 -8 41 1 31 40 17 52 41 9 50 40 9 44 -1.32 - 53 0 0 41 0 35 7 19 17.9 11 230 -7 41 22 36 40 38 47 41 30 56 40 30 37 -1.32 - 52 0 0 41 21 53 7 19 15.7 10 231 -7 41 43 58 41 0 0 41 52 20 40 51 48 -1.33 - 51 0 0 41 43 27 7 19 13.7 10 232 -6 42 5 37 41 21 30 42 14 1 41 13 16 -1.33 - 50 0 0 42 5 18 7 19 11.9 9 232 -5 42 27 32 41 43 16 42 35 59 41 35 1 -1.33 - 49 0 0 42 27 25 7 19 10.2 8 233 -4 42 49 44 42 5 18 42 58 12 41 57 1 -1.33 - 48 0 0 42 49 47 7 19 8.8 7 234 -3 43 12 11 42 27 35 43 20 41 42 19 17 -1.34 - 47 0 0 43 12 24 7 19 7.4 6 235 -3 43 34 53 42 50 7 43 43 24 42 41 47 -1.34 - 46 0 0 43 35 14 7 19 6.3 5 235 -2 43 57 48 43 12 53 44 6 22 43 4 31 -1.35 - 45 0 0 43 58 18 7 19 5.3 5 236 -1 44 20 57 43 35 53 44 29 32 43 27 28 -1.36 - 44 0 0 44 21 35 7 19 4.4 4 237 0 44 44 18 43 59 4 44 52 55 43 50 38 -1.37 - 43 0 0 44 45 3 7 19 3.8 3 237 1 45 7 51 44 22 28 45 16 30 44 14 0 -1.39 - 42 0 0 45 8 42 7 19 3.2 2 238 1 45 31 35 44 46 2 45 40 16 44 37 33 -1.42 - 41 0 0 45 32 31 7 19 2.9 1 239 2 45 55 29 45 9 47 46 4 12 45 1 16 -1.49 - 40 0 0 45 56 30 7 19 2.7 1 239 3 46 19 32 45 33 42 46 28 17 45 25 9 -1.73 Uncertainty in time = +/- 3 secs Prediction of 2022 Apr 15.8 Data for the target star ------------------------ * name: UCAC4 349-084978 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 58 15.6040 DE: -20 16 35.571 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 58 15.6040 DE: -20 16 35.571 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 13.6 * B mag [mag]: 14.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1010) Marlene asteroid class: approx. diameter [km]: 45 approx. diameter ["]: 0.030 distance from Earth [AU]: 2.06480 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#62 date of fit: 2022 Apr 12 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): 0.022", 0.005", 98.926° remarks: * orbital elements for (1010)Marlene : Mean anomaly = 246.3999056480 deg Arg. of pericenter = 279.7190146004 deg Long. of node = 98.7303797826 deg Inclination = 3.9072244052 deg Eccentricity = 0.1047315583 Semimajor axis = 2.9294570089 AU Perihelion dist = 2.6226504112 AU Mag: H = 10.79, G = 0.15 Epoch of elements : MJD 59733.30841950 TDT (2022 Jun 03.3084) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#622022Apr12,3.48,2022,6,3,7.402037,0.024358,0.785737,-7.267052,0.225522,-0.000311,-0.000207,0.000001,0.000000 -107.8666,-20.3110,68.51,22.32,False UCAC4 349-084978,16.97100111,-20.2765475,14.81,13.60,12.95,0.0,0,,16.99323565,-20.3110122,1.61,1.78,0,0,0 1010,Marlene,14.94,44.8,2.0648,0,0,-2.200,0.96,,2.2 0,246.3393,2022,6,3,279.7190,98.7304,3.9072,0.10473,2.92946,2.62265,10.74,5.0,0.15 1.188,0.0217,0.0050,99,0.0056,Known errors,-1.00,-1,-1,-1 20220603_084978,59684.83 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Apr 15, 19:59 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org