IOTA/IOTA-ES occultation update for (968) Petunia / UCAC4 428-053027 event on 2024 Dec 16, 00:02 UT Visible from Summary ------- On 2024 Dec 16 UT, the 27.133 km diameter asteroid (968) Petunia will occult a 11.9 mag star in the constellation Sextans for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.02 mag to 14.85 mag (the magnitude of the asteroid) for at most 2.390 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: 94 * date and approx. time of event: 2024 Dec 15, 23:53 - 2024 Dec 16, 00:11 * geocentric midpoint of event [JD]: 2460660.50204929 * magnitude of target star: 11.90 * magnitude drop [mag]: 3.02 * estimated maximum duration [s]: 2.390 * Moon: 99 % sunlit, 69° distance * Sun: 104° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 29 * 1 sigma uncertainty interval [path widths]: +/- 0.46 * 1 sigma uncertainty interval [seconds]: +/- 2.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.017, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.017", 0.002", 102°) * approx speed of asteroid's shadow [km/s]: 11.3596 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 428-053027 by 968 Petunia on 2024 Dec 16 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 - 9 0 0 60 10 5 23 54 8.0 - 0 99 -53 60 2 15 60 17 55 59 55 4 60 25 7 .... - 8 0 0 60 4 58 23 54 8.0 - 1 100 -53 59 57 7 60 12 49 59 49 56 60 20 2 -0.12 - 7 0 0 59 59 28 23 54 8.1 - 1 101 -53 59 51 36 60 7 20 59 44 24 60 14 34 -0.22 - 6 0 0 59 53 35 23 54 8.2 - 2 102 -53 59 45 42 60 1 28 59 38 28 60 8 42 -0.25 - 5 0 0 59 47 17 23 54 8.4 - 2 103 -53 59 39 23 59 55 12 59 32 9 60 2 27 -0.27 - 4 0 0 59 40 36 23 54 8.6 - 3 104 -53 59 32 40 59 48 31 59 25 25 59 55 48 -0.28 - 3 0 0 59 33 30 23 54 8.9 - 3 105 -54 59 25 33 59 41 27 59 18 17 59 48 45 -0.29 - 2 0 0 59 26 0 23 54 9.2 - 4 105 -54 59 18 2 59 33 58 59 10 43 59 41 17 -0.30 - 1 0 0 59 18 4 23 54 9.6 - 4 106 -54 59 10 5 59 26 4 59 2 45 59 33 24 -0.30 0 0 0 59 9 43 23 54 10.0 - 5 107 -54 59 1 42 59 17 45 58 54 22 59 25 7 -0.31 1 0 0 59 0 57 23 54 10.5 - 5 108 -54 58 52 54 59 9 0 58 45 32 59 16 23 -0.31 2 0 0 58 51 44 23 54 11.0 - 6 109 -54 58 43 40 58 59 49 58 36 16 59 7 14 -0.31 3 0 0 58 42 5 23 54 11.6 - 6 110 -55 58 33 59 58 50 11 58 26 34 58 57 38 -0.31 4 0 0 58 31 59 23 54 12.3 - 7 111 -55 58 23 51 58 40 7 58 16 24 58 47 35 -0.31 5 0 0 58 21 25 23 54 13.0 - 7 111 -55 58 13 16 58 29 35 58 5 47 58 37 5 -0.31 6 0 0 58 10 24 23 54 13.8 - 8 112 -55 58 2 12 58 18 36 57 54 42 58 26 7 -0.32 7 0 0 57 58 54 23 54 14.6 - 9 113 -55 57 50 40 58 7 8 57 43 8 58 14 42 -0.32 8 0 0 57 46 55 23 54 15.5 - 9 114 -55 57 38 40 57 55 11 57 31 5 58 2 47 -0.32 9 0 0 57 34 27 23 54 16.5 - 10 115 -55 57 26 9 57 42 46 57 18 33 57 50 23 -0.32 10 0 0 57 21 29 23 54 17.6 - 10 116 -55 57 13 9 57 29 50 57 5 31 57 37 29 -0.32 11 0 0 57 8 1 23 54 18.7 - 11 116 -55 56 59 38 57 16 24 56 51 58 57 24 5 -0.32 12 0 0 56 54 1 23 54 19.9 - 12 117 -55 56 45 36 57 2 26 56 37 54 57 10 10 -0.32 13 0 0 56 39 30 23 54 21.2 - 12 118 -55 56 31 2 56 47 57 56 23 18 56 55 44 -0.32 14 0 0 56 24 26 23 54 22.5 - 13 119 -55 56 15 56 56 32 56 56 8 9 56 40 45 -0.32 15 0 0 56 8 49 23 54 24.0 - 13 120 -55 56 0 17 56 17 22 55 52 27 56 25 13 -0.32 16 0 0 55 52 39 23 54 25.5 - 14 121 -55 55 44 4 56 1 15 55 36 12 56 9 8 -0.32 17 0 0 55 35 55 23 54 27.1 - 15 122 -55 55 27 17 55 44 33 55 19 22 55 52 29 -0.32 18 0 0 55 18 35 23 54 28.8 - 15 122 -55 55 9 54 55 27 16 55 1 57 55 35 15 -0.32 19 0 0 55 0 40 23 54 30.6 - 16 123 -55 54 51 56 55 9 24 54 43 56 55 17 25 -0.32 20 0 0 54 42 8 23 54 32.5 - 17 124 -55 54 33 21 54 50 55 54 25 19 54 58 59 -0.32 21 0 0 54 22 59 23 54 34.5 - 17 125 -55 54 14 9 54 31 49 54 6 4 54 39 55 -0.32 22 0 0 54 3 11 23 54 36.6 - 18 126 -55 53 54 19 54 12 5 53 46 11 54 20 14 -0.32 23 0 0 53 42 45 23 54 38.9 - 19 127 -55 53 33 50 53 51 42 53 25 39 53 59 54 -0.32 24 0 0 53 21 40 23 54 41.2 - 19 127 -55 53 12 41 53 30 39 53 4 27 53 38 55 -0.32 25 0 0 52 59 54 23 54 43.7 - 20 128 -55 52 50 51 53 8 57 52 42 34 53 17 15 -0.32 26 0 0 52 37 26 23 54 46.2 - 21 129 -55 52 28 21 52 46 33 52 20 1 52 54 54 -0.32 27 0 0 52 14 17 23 54 48.9 - 21 130 -55 52 5 8 52 23 27 51 56 45 52 31 51 -0.32 28 0 0 51 50 25 23 54 51.8 - 22 131 -54 51 41 12 51 59 38 51 32 46 52 8 5 -0.32 29 0 0 51 25 48 23 54 54.7 - 23 132 -54 51 16 32 51 35 5 51 8 3 51 43 36 -0.32 30 0 0 51 0 27 23 54 57.9 - 24 132 -54 50 51 8 51 9 48 50 42 35 51 18 22 -0.32 31 0 0 50 34 21 23 55 1.1 - 24 133 -54 50 24 58 50 43 45 50 16 22 50 52 22 -0.32 32 0 0 50 7 28 23 55 4.5 - 25 134 -53 49 58 1 50 16 56 49 49 22 50 25 37 -0.32 33 0 0 49 39 48 23 55 8.1 - 26 135 -53 49 30 18 49 49 19 49 21 35 49 58 4 -0.32 34 0 0 49 11 20 23 55 11.9 - 27 136 -53 49 1 46 49 20 55 48 53 0 49 29 43 -0.32 35 0 0 48 42 3 23 55 15.8 - 28 137 -53 48 32 25 48 51 42 48 23 36 49 0 33 -0.32 36 0 0 48 11 56 23 55 19.9 - 28 138 -52 48 2 15 48 21 39 47 53 22 48 30 33 -0.32 37 0 0 47 40 59 23 55 24.1 - 29 138 -52 47 31 14 47 50 45 47 22 17 47 59 43 -0.32 38 0 0 47 9 11 23 55 28.6 - 30 139 -51 46 59 21 47 19 0 46 50 22 47 28 2 -0.32 39 0 0 46 36 30 23 55 33.3 - 31 140 -51 46 26 37 46 46 24 46 17 34 46 55 29 -0.32 40 0 0 46 2 57 23 55 38.1 - 32 141 -51 45 53 0 46 12 54 45 43 53 46 22 3 -0.32 41 0 0 45 28 30 23 55 43.2 - 33 142 -50 45 18 30 45 38 31 45 9 19 45 47 44 -0.32 42 0 0 44 53 10 23 55 48.4 - 34 143 -50 44 43 5 45 3 15 44 33 52 45 12 30 -0.32 43 0 0 44 16 55 23 55 53.9 - 35 144 -49 44 6 47 44 27 3 43 57 29 44 36 23 -0.32 44 0 0 43 39 45 23 55 59.7 - 36 144 -49 43 29 33 43 49 57 43 20 12 43 59 20 -0.32 45 0 0 43 1 39 23 56 5.6 - 36 145 -48 42 51 24 43 11 56 42 42 0 43 21 22 -0.32 46 0 0 42 22 38 23 56 11.8 - 37 146 -47 42 12 19 42 32 58 42 2 52 42 42 27 -0.32 47 0 0 41 42 41 23 56 18.3 - 38 147 -47 41 32 19 41 53 5 41 22 48 42 2 37 -0.32 48 0 0 41 1 48 23 56 24.9 - 39 148 -46 40 51 22 41 12 15 40 41 48 41 21 51 -0.32 49 0 0 40 19 59 23 56 31.9 - 40 149 -45 40 9 30 40 30 30 39 59 53 40 40 9 -0.32 50 0 0 39 37 14 23 56 39.1 - 41 150 -45 39 26 41 39 47 48 39 17 1 39 57 31 -0.32 51 0 0 38 53 34 23 56 46.6 - 42 151 -44 38 42 57 39 4 11 38 33 14 39 13 56 -0.32 52 0 0 38 8 57 23 56 54.3 - 43 152 -43 37 58 18 38 19 37 37 48 32 38 29 26 -0.32 53 0 0 37 23 26 23 57 2.3 - 45 153 -42 37 12 43 37 34 9 37 2 55 37 44 0 -0.32 54 0 0 36 37 0 23 57 10.6 - 46 154 -42 36 26 15 36 47 46 36 16 23 36 57 40 -0.32 55 0 0 35 49 41 23 57 19.2 - 47 155 -41 35 38 53 36 0 30 35 28 59 36 10 26 -0.33 56 0 0 35 1 29 23 57 28.0 - 48 156 -40 34 50 38 35 12 21 34 40 42 35 22 19 -0.33 57 0 0 34 12 26 23 57 37.2 - 49 157 -39 34 1 32 34 23 20 33 51 34 34 33 21 -0.33 58 0 0 33 22 32 23 57 46.6 - 50 158 -38 33 11 36 33 33 29 33 1 36 33 43 32 -0.33 59 0 0 32 31 50 23 57 56.3 - 51 159 -37 32 20 52 32 42 48 32 10 49 32 52 53 -0.33 60 0 0 31 40 20 23 58 6.3 - 52 161 -36 31 29 20 31 51 21 31 19 16 32 1 28 -0.33 61 0 0 30 48 5 23 58 16.5 - 53 162 -35 30 37 4 30 59 8 30 26 58 31 9 16 -0.33 62 0 0 29 55 7 23 58 27.1 - 54 163 -34 29 44 4 30 6 11 29 33 56 30 16 21 -0.33 63 0 0 29 1 27 23 58 37.9 - 55 165 -33 28 50 23 29 12 33 28 40 14 29 22 44 -0.33 64 0 0 28 7 9 23 58 48.9 - 57 166 -32 27 56 4 28 18 16 27 45 54 28 28 28 -0.33 65 0 0 27 12 15 23 59 0.2 - 58 168 -31 27 1 8 27 23 22 26 50 58 27 33 35 -0.33 66 0 0 26 16 46 23 59 11.8 - 59 169 -30 26 5 39 26 27 55 25 55 28 26 38 8 -0.33 67 0 0 25 20 47 23 59 23.6 - 60 171 -29 25 9 40 25 31 56 24 59 28 25 42 10 -0.33 68 0 0 24 24 21 23 59 35.7 - 61 173 -28 24 13 13 24 35 29 24 3 1 24 45 44 -0.33 69 0 0 23 27 29 23 59 47.9 - 62 175 -26 23 16 21 23 38 38 23 6 9 23 48 52 -0.33 70 0 0 22 30 16 0 0 0.4 63 177 -25 22 19 8 22 41 24 22 8 57 22 51 38 -0.33 71 0 0 21 32 44 0 0 13.0 64 179 -24 21 21 37 21 43 52 21 11 26 21 54 6 -0.33 72 0 0 20 34 58 0 0 25.9 65 182 -23 20 23 52 20 46 5 20 13 42 20 56 18 -0.34 73 0 0 19 37 1 0 0 38.9 66 184 -22 19 25 55 19 48 7 19 15 46 19 58 19 -0.34 74 0 0 18 38 55 0 0 52.0 67 187 -20 18 27 51 18 50 0 18 17 43 19 0 11 -0.34 75 0 0 17 40 46 0 1 5.3 67 190 -19 17 29 43 17 51 49 17 19 36 18 1 59 -0.34 76 0 0 16 42 35 0 1 18.7 68 194 -18 16 31 35 16 53 37 16 21 29 17 3 45 -0.34 77 0 0 15 44 28 0 1 32.2 69 197 -16 15 33 29 15 55 28 15 23 25 16 5 34 -0.34 78 0 0 14 46 27 0 1 45.8 69 201 -15 14 35 30 14 57 25 14 25 29 15 7 29 -0.34 79 0 0 13 48 36 0 1 59.4 70 204 -14 13 37 42 13 59 32 13 27 42 14 9 34 -0.34 80 0 0 12 50 59 0 2 13.1 70 208 -13 12 40 7 13 1 52 12 30 9 13 11 52 -0.34 81 0 0 11 53 38 0 2 26.8 71 213 -11 11 42 49 12 4 28 11 32 54 12 14 26 -0.34 82 0 0 10 56 37 0 2 40.6 71 217 -10 10 45 51 11 7 25 10 35 58 11 17 20 -0.34 83 0 0 10 0 0 0 2 54.3 71 221 -9 9 49 16 10 10 44 9 39 27 10 20 36 -0.35 84 0 0 9 3 49 0 3 8.0 71 225 -7 8 53 8 9 14 30 8 43 22 9 24 19 -0.35 85 0 0 8 8 6 0 3 21.6 71 229 -6 7 57 29 8 18 44 7 47 46 8 28 31 -0.35 86 0 0 7 12 56 0 3 35.2 71 233 -5 7 2 23 7 23 31 6 52 42 7 33 14 -0.35 87 0 0 6 18 21 0 3 48.7 70 237 -3 6 7 51 6 28 52 5 58 14 6 38 32 -0.35 88 0 0 5 24 23 0 4 2.2 70 241 -2 5 13 56 5 34 50 5 4 22 5 44 26 -0.35 89 0 0 4 31 4 0 4 15.5 69 244 -1 4 20 41 4 41 28 4 11 11 4 51 1 -0.35 90 0 0 3 38 27 0 4 28.7 69 248 1 3 28 8 3 48 47 3 18 41 3 58 16 -0.35 91 0 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25 -19 1 20 -18 29 53 -0.36 129 0 0 -19 3 42 0 10 29.8 30 276 46 -19 11 52 -18 55 32 -19 19 21 -18 48 2 -0.36 130 0 0 -19 20 59 0 10 34.9 29 275 47 -19 29 7 -19 12 51 -19 36 34 -19 5 23 -0.36 131 0 0 -19 37 29 0 10 39.7 28 275 48 -19 45 35 -19 29 22 -19 53 0 -19 21 56 -0.36 132 0 0 -19 53 11 0 10 44.4 27 275 49 -20 1 15 -19 45 6 -20 8 39 -19 37 41 -0.36 133 0 0 -20 8 7 0 10 48.9 26 275 50 -20 16 9 -20 0 4 -20 23 32 -19 52 40 -0.36 134 0 0 -20 22 16 0 10 53.3 25 274 51 -20 30 17 -20 14 14 -20 37 38 -20 6 52 -0.36 135 0 0 -20 35 39 0 10 57.4 24 274 52 -20 43 39 -20 27 39 -20 50 59 -20 20 19 -0.36 136 0 0 -20 48 17 0 11 1.4 23 274 53 -20 56 15 -20 40 19 -21 3 34 -20 32 59 -0.36 137 0 0 -21 0 10 0 11 5.2 22 273 54 -21 8 7 -20 52 13 -21 15 24 -20 44 55 -0.36 138 0 0 -21 11 18 0 11 8.8 21 273 55 -21 19 14 -21 3 22 -21 26 29 -20 56 5 -0.36 139 0 0 -21 21 42 0 11 12.3 20 273 56 -21 29 36 -21 13 47 -21 36 51 -21 6 31 -0.36 140 0 0 -21 31 21 0 11 15.6 19 272 57 -21 39 14 -21 23 27 -21 46 28 -21 16 12 -0.36 141 0 0 -21 40 17 0 11 18.7 18 272 58 -21 48 9 -21 32 24 -21 55 22 -21 25 10 -0.36 142 0 0 -21 48 29 0 11 21.7 17 272 59 -21 56 20 -21 40 37 -22 3 33 -21 33 24 -0.36 143 0 0 -21 55 58 0 11 24.4 16 271 59 -22 3 49 -21 48 7 -22 11 0 -21 40 55 -0.36 144 0 0 -22 2 44 0 11 27.1 15 271 60 -22 10 34 -21 54 54 -22 17 45 -21 47 42 -0.36 145 0 0 -22 8 48 0 11 29.5 14 271 61 -22 16 37 -22 0 58 -22 23 47 -21 53 47 -0.36 146 0 0 -22 14 9 0 11 31.9 13 270 62 -22 21 57 -22 6 20 -22 29 6 -21 59 10 -0.36 147 0 0 -22 18 47 0 11 34.0 12 270 63 -22 26 35 -22 10 59 -22 33 44 -22 3 49 -0.36 148 0 0 -22 22 44 0 11 36.0 11 270 64 -22 30 32 -22 14 56 -22 37 40 -22 7 47 -0.36 149 0 0 -22 25 59 0 11 37.8 10 269 65 -22 33 46 -22 18 12 -22 40 54 -22 11 3 -0.36 150 0 0 -22 28 32 0 11 39.5 10 269 66 -22 36 19 -22 20 45 -22 43 27 -22 13 36 -0.37 151 0 0 -22 30 24 0 11 41.0 9 269 67 -22 38 10 -22 22 37 -22 45 18 -22 15 28 -0.37 152 0 0 -22 31 34 0 11 42.4 8 268 68 -22 39 20 -22 23 47 -22 46 27 -22 16 39 -0.37 153 0 0 -22 32 3 0 11 43.6 7 268 69 -22 39 49 -22 24 16 -22 46 56 -22 17 8 -0.37 154 0 0 -22 31 50 0 11 44.6 6 267 70 -22 39 36 -22 24 4 -22 46 43 -22 16 56 -0.37 155 0 0 -22 30 56 0 11 45.5 5 267 71 -22 38 43 -22 23 10 -22 45 50 -22 16 2 -0.38 156 0 0 -22 29 22 0 11 46.3 4 267 72 -22 37 8 -22 21 35 -22 44 15 -22 14 27 -0.38 157 0 0 -22 27 6 0 11 46.9 3 266 72 -22 34 52 -22 19 19 -22 42 0 -22 12 11 -0.39 158 0 0 -22 24 9 0 11 47.3 2 266 73 -22 31 56 -22 16 22 -22 39 3 -22 9 14 -0.41 159 0 0 -22 20 31 0 11 47.6 1 266 74 -22 28 18 -22 12 44 -22 35 26 -22 5 35 -0.46 160 0 0 -22 16 12 0 11 47.7 0 265 75 -22 24 0 -22 8 25 -22 31 8 -22 1 16 -0.93 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 428-053027 * constellation : Sextans * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 24 36.3283 DE: -04 27 10.438 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 24 36.3284 DE: -04 27 10.439 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.9 * B mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (968) Petunia asteroid class: approx. diameter [km]: 27 approx. diameter ["]: 0.018 distance from Earth [AU]: 2.06630 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Feb 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): 0.017", 0.002", 102.486° remarks: * orbital elements for (968)Petunia : Mean anomaly = 352.1702707156 deg Arg. of pericenter = 297.9249718279 deg Long. of node = 208.7399729319 deg Inclination = 11.6040130272 deg Eccentricity = 0.1313046894 Semimajor axis = 2.8686392429 AU Perihelion dist = 2.4919734582 AU Mag: H = 10.21, G = 0.15 Epoch of elements : MJD 60660.00204933 TDT (2024 Dec 16.0020) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Feb11,2.39,2024,12,16,0.049183,0.215023,0.245477,4.820969,-4.227016,-0.005084,0.002416,0.000000,0.000000 70.5995,-4.5785,178.16,-23.32,False UCAC4 428-053027,10.41009118,-4.4528994,12.22,11.90,11.73,0.0,0,,10.43121261,-4.5784576,3.02,2.76,0,0,0 968,Petunia,14.85,27.133,2.0663,0,0,1.373,-17.99,,1.6,0 0,351.9670,2024,12,15,297.9250,208.7400,11.6040,0.13130,2.86864,2.49197,10.21,5.0,0.15 1.459,0.0170,0.0017,102,0.0083,Known errors,1.55,0,-1,-1 20241216_053027,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:48 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org