IOTA/IOTA-ES occultation update for (676) Melitta / UCAC4-402-083153 event on 2023 Apr 08, 01:41 UT Visible from Europe, SW Asia Summary ------- On 2023 Apr 08 UT, the 82.7 km diameter asteroid (676) Melitta will occult a 12.5 mag star in the constellation Scutum for observers along a path across Europe, SW Asia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.63 mag to 14.98 mag (the magnitude of the asteroid) for at most 5.660 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 Apr 08, 01:37 - 2023 Apr 08, 01:45 * geocentric midpoint of event [JD]: 2460042.57058054 * magnitude of target star: 12.45 * magnitude drop [mag]: 2.63 * estimated maximum duration [s]: 5.660 * Moon: 96 % sunlit, 62° distance * Sun: 97° distance * rough path description: Europe, SW Asia The occultation path -------------------- * approximate projected width [km]: 159 * 1 sigma uncertainty interval [path widths]: +/- 0.24 * 1 sigma uncertainty interval [seconds]: +/- 2.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.004", 94°) * approx speed of asteroid's shadow [km/s]: 14.6159 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-402-083153 by 676 Melitta on 2023 Apr 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 - 22 0 0 37 27 11 1 37 51.8 0 102 -46 36 43 36 38 11 43 36 22 45 .. .. .. .... - 21 0 0 37 17 21 1 37 52.0 1 103 -46 36 33 52 38 1 46 36 13 4 38 23 43 -0.85 - 20 0 0 37 8 7 1 37 52.3 2 103 -46 36 24 44 37 52 27 36 3 58 38 14 21 -1.21 - 19 0 0 36 59 31 1 37 52.7 3 104 -46 36 16 13 37 43 45 35 55 29 38 5 36 -1.34 - 18 0 0 36 51 32 1 37 53.3 3 105 -46 36 8 18 37 35 41 35 47 37 37 57 29 -1.42 - 17 0 0 36 44 10 1 37 54.1 4 105 -46 36 1 1 37 28 15 35 40 22 37 50 1 -1.46 - 16 0 0 36 37 27 1 37 55.1 5 106 -46 35 54 21 37 21 27 35 33 44 37 43 11 -1.49 - 15 0 0 36 31 21 1 37 56.2 6 106 -46 35 48 19 37 15 18 35 27 43 37 37 0 -1.51 - 14 0 0 36 25 53 1 37 57.5 7 107 -46 35 42 54 37 9 47 35 22 20 37 31 28 -1.53 - 13 0 0 36 21 4 1 37 59.0 7 108 -45 35 38 8 37 4 55 35 17 34 37 26 34 -1.55 - 12 0 0 36 16 53 1 38 0.6 8 108 -45 35 33 59 37 0 42 35 13 27 37 22 20 -1.56 - 11 0 0 36 13 21 1 38 2.4 9 109 -45 35 30 28 36 57 8 35 9 57 37 18 45 -1.57 - 10 0 0 36 10 27 1 38 4.4 10 110 -45 35 27 36 36 54 13 35 7 5 37 15 49 -1.58 - 9 0 0 36 8 12 1 38 6.5 11 110 -45 35 25 22 36 51 57 35 4 51 37 13 33 -1.58 - 8 0 0 36 6 36 1 38 8.8 11 111 -44 35 23 46 36 50 20 35 3 16 37 11 56 -1.59 - 7 0 0 36 5 39 1 38 11.2 12 111 -44 35 22 49 36 49 23 35 2 19 37 10 59 -1.59 - 6 0 0 36 5 21 1 38 13.9 13 112 -44 35 22 30 36 49 6 35 2 0 37 10 42 -1.60 - 5 0 0 36 5 42 1 38 16.6 14 113 -43 35 22 51 36 49 28 35 2 19 37 11 4 -1.60 - 4 0 0 36 6 42 1 38 19.5 14 113 -43 35 23 49 36 50 29 35 3 17 37 12 7 -1.61 - 3 0 0 36 8 22 1 38 22.6 15 114 -43 35 25 27 36 52 11 35 4 54 37 13 49 -1.61 - 2 0 0 36 10 41 1 38 25.8 16 115 -42 35 27 44 36 54 32 35 7 10 37 16 11 -1.61 - 1 0 0 36 13 39 1 38 29.2 17 116 -42 35 30 39 36 57 33 35 10 4 37 19 14 -1.62 0 0 0 36 17 17 1 38 32.7 17 116 -41 35 34 14 37 1 14 35 13 38 37 22 57 -1.62 1 0 0 36 21 34 1 38 36.4 18 117 -41 35 38 27 37 5 35 35 17 49 37 27 19 -1.62 2 0 0 36 26 30 1 38 40.2 19 118 -40 35 43 20 37 10 36 35 22 40 37 32 22 -1.62 3 0 0 36 32 6 1 38 44.1 19 119 -40 35 48 52 37 16 17 35 28 10 37 38 6 -1.63 4 0 0 36 38 22 1 38 48.2 20 119 -39 35 55 2 37 22 37 35 34 18 37 44 29 -1.63 5 0 0 36 45 17 1 38 52.4 21 120 -38 36 1 52 37 29 38 35 41 5 37 51 32 -1.63 6 0 0 36 52 51 1 38 56.8 21 121 -38 36 9 20 37 37 18 35 48 31 37 59 16 -1.63 7 0 0 37 1 5 1 39 1.3 22 122 -37 36 17 28 37 45 38 35 56 35 38 7 39 -1.63 8 0 0 37 9 57 1 39 5.9 23 123 -37 36 26 14 37 54 38 36 5 19 38 16 43 -1.64 9 0 0 37 19 30 1 39 10.6 23 123 -36 36 35 39 38 4 18 36 14 40 38 26 26 -1.64 10 0 0 37 29 41 1 39 15.5 24 124 -35 36 45 42 38 14 37 36 24 40 38 36 50 -1.64 11 0 0 37 40 31 1 39 20.4 24 125 -35 36 56 25 38 25 36 36 35 19 38 47 53 -1.64 12 0 0 37 52 0 1 39 25.5 25 126 -34 37 7 45 38 37 14 36 46 35 38 59 36 -1.64 13 0 0 38 4 8 1 39 30.7 25 127 -33 37 19 44 38 49 32 36 58 30 39 11 59 -1.64 14 0 0 38 16 55 1 39 36.0 26 128 -32 37 32 21 39 2 29 37 11 3 39 25 0 -1.64 15 0 0 38 30 20 1 39 41.4 26 129 -32 37 45 36 39 16 4 37 24 14 39 38 41 -1.64 16 0 0 38 44 23 1 39 46.9 27 130 -31 37 59 30 39 30 19 37 38 2 39 53 1 -1.65 17 0 0 38 59 5 1 39 52.4 27 131 -30 38 14 1 39 45 12 37 52 28 40 8 1 -1.65 18 0 0 39 14 24 1 39 58.1 28 132 -29 38 29 9 40 0 43 38 7 31 40 23 38 -1.65 19 0 0 39 30 21 1 40 3.9 28 133 -29 38 44 54 40 16 53 38 23 11 40 39 55 -1.65 20 0 0 39 46 56 1 40 9.7 28 134 -28 39 1 16 40 33 40 38 39 27 40 56 48 -1.65 21 0 0 40 4 7 1 40 15.6 29 135 -27 39 18 14 40 51 5 38 56 20 41 14 20 -1.65 22 0 0 40 21 54 1 40 21.6 29 136 -26 39 35 49 41 9 7 39 13 48 41 32 29 -1.65 23 0 0 40 40 19 1 40 27.6 29 137 -25 39 54 0 41 27 46 39 31 52 41 51 16 -1.65 24 0 0 40 59 19 1 40 33.7 30 138 -25 40 12 46 41 47 2 39 50 32 42 10 40 -1.65 25 0 0 41 18 55 1 40 39.9 30 140 -24 40 32 7 42 6 54 40 9 47 42 30 40 -1.65 26 0 0 41 39 7 1 40 46.1 30 141 -23 40 52 4 42 27 22 40 29 36 42 51 16 -1.65 27 0 0 41 59 53 1 40 52.3 30 142 -22 41 12 34 42 48 24 40 50 0 43 12 27 -1.65 28 0 0 42 21 13 1 40 58.6 31 143 -21 41 33 39 43 10 2 41 10 57 43 34 14 -1.65 29 0 0 42 43 8 1 41 5.0 31 144 -20 41 55 17 43 32 15 41 32 27 43 56 35 -1.65 30 0 0 43 5 36 1 41 11.3 31 145 -20 42 17 27 43 55 0 41 54 30 44 19 31 -1.65 31 0 0 43 28 36 1 41 17.7 31 147 -19 42 40 10 44 18 19 42 17 5 44 42 59 -1.65 32 0 0 43 52 8 1 41 24.1 31 148 -18 43 3 25 44 42 11 42 40 11 45 7 1 -1.65 33 0 0 44 16 12 1 41 30.4 31 149 -17 43 27 10 45 6 34 43 3 48 45 31 35 -1.65 34 0 0 44 40 46 1 41 36.8 31 150 -16 43 51 26 45 31 29 43 27 55 45 56 40 -1.65 35 0 0 45 5 50 1 41 43.2 31 152 -15 44 16 11 45 56 54 43 52 32 46 22 16 -1.65 36 0 0 45 31 24 1 41 49.6 31 153 -15 44 41 25 46 22 49 44 17 37 46 48 22 -1.65 37 0 0 45 57 26 1 41 56.0 31 154 -14 45 7 7 46 49 13 44 43 10 47 14 57 -1.65 38 0 0 46 23 56 1 42 2.3 31 155 -13 45 33 16 47 16 5 45 9 10 47 42 0 -1.65 39 0 0 46 50 52 1 42 8.7 31 156 -12 45 59 52 47 43 24 45 35 36 48 9 31 -1.65 40 0 0 47 18 14 1 42 15.0 31 158 -11 46 26 53 48 11 9 46 2 27 48 37 28 -1.65 41 0 0 47 46 1 1 42 21.2 31 159 -10 46 54 19 48 39 20 46 29 43 49 5 51 -1.65 42 0 0 48 14 12 1 42 27.4 30 160 -10 47 22 8 49 7 55 46 57 23 49 34 39 -1.65 43 0 0 48 42 46 1 42 33.6 30 161 -9 47 50 20 49 36 53 47 25 24 50 3 50 -1.65 44 0 0 49 11 42 1 42 39.6 30 163 -8 48 18 53 50 6 13 47 53 48 50 33 23 -1.65 45 0 0 49 40 59 1 42 45.7 30 164 -7 48 47 47 50 35 55 48 22 31 51 3 17 -1.65 46 0 0 50 10 35 1 42 51.6 29 165 -6 49 17 0 51 5 56 48 51 34 51 33 32 -1.65 47 0 0 50 40 29 1 42 57.5 29 166 -6 49 46 32 51 36 16 49 20 55 52 4 5 -1.65 48 0 0 51 10 40 1 43 3.3 29 168 -5 50 16 20 52 6 53 49 50 32 52 34 56 -1.65 49 0 0 51 41 8 1 43 9.0 28 169 -4 50 46 24 52 37 46 50 20 26 53 6 3 -1.65 50 0 0 52 11 49 1 43 14.7 28 170 -3 51 16 42 53 8 54 50 50 33 53 37 25 -1.65 51 0 0 52 42 44 1 43 20.2 27 171 -3 51 47 13 53 40 16 51 20 54 54 9 0 -1.65 52 0 0 53 13 51 1 43 25.6 27 172 -2 52 17 56 54 11 49 51 51 26 54 40 47 -1.65 53 0 0 53 45 9 1 43 30.9 27 173 -1 52 48 50 54 43 33 52 22 9 55 12 45 -1.65 54 0 0 54 16 35 1 43 36.1 26 175 0 53 19 52 55 15 26 52 53 1 55 44 52 -1.65 55 0 0 54 48 9 1 43 41.2 26 176 0 53 51 3 55 47 26 53 24 1 56 17 7 -1.65 56 0 0 55 19 49 1 43 46.2 25 177 1 54 22 19 56 19 33 53 55 7 56 49 27 -1.65 57 0 0 55 51 34 1 43 51.0 25 178 2 54 53 41 56 51 43 54 26 18 57 21 52 -1.65 58 0 0 56 23 21 1 43 55.8 24 179 2 55 25 5 57 23 57 54 57 32 57 54 19 -1.65 59 0 0 56 55 11 1 44 0.4 24 180 3 55 56 32 57 56 12 55 28 48 58 26 48 -1.65 60 0 0 57 27 0 1 44 4.8 23 181 4 56 27 58 58 28 26 56 0 5 58 59 16 -1.65 61 0 0 57 58 47 1 44 9.2 23 182 4 56 59 24 59 0 39 56 31 21 59 31 42 -1.65 62 0 0 58 30 32 1 44 13.4 22 183 5 57 30 47 59 32 48 57 2 34 60 4 4 -1.65 63 0 0 59 2 12 1 44 17.4 21 185 5 58 2 6 60 4 52 57 33 44 60 36 21 -1.65 64 0 0 59 33 45 1 44 21.3 21 186 6 58 33 19 60 36 48 58 4 48 61 8 30 -1.65 65 0 0 60 5 11 1 44 25.1 20 187 6 59 4 25 61 8 37 58 35 45 61 40 30 -1.65 66 0 0 60 36 27 1 44 28.7 20 188 7 59 35 22 61 40 15 59 6 33 62 12 20 -1.66 67 0 0 61 7 32 1 44 32.2 19 189 7 60 6 9 62 11 41 59 37 12 62 43 58 -1.66 68 0 0 61 38 25 1 44 35.6 19 190 8 60 36 44 62 42 54 60 7 40 63 15 21 -1.66 69 0 0 62 9 4 1 44 38.8 18 191 8 61 7 7 63 13 51 60 37 55 63 46 29 -1.66 70 0 0 62 39 28 1 44 41.9 17 192 9 61 37 15 63 44 33 61 7 57 64 17 21 -1.66 71 0 0 63 9 35 1 44 44.8 17 193 9 62 7 7 64 14 56 61 37 43 64 47 53 -1.66 72 0 0 63 39 23 1 44 47.6 16 194 10 62 36 43 64 45 1 62 7 12 65 18 6 -1.66 73 0 0 64 8 53 1 44 50.3 16 195 10 63 6 0 65 14 44 62 36 24 65 47 57 -1.66 74 0 0 64 38 2 1 44 52.8 15 196 11 63 34 58 65 44 6 63 5 17 66 17 26 -1.66 75 0 0 65 6 49 1 44 55.2 14 197 11 64 3 35 66 13 4 63 33 50 66 46 31 -1.66 76 0 0 65 35 13 1 44 57.5 14 198 11 64 31 50 66 41 38 64 2 1 67 15 10 -1.66 77 0 0 66 3 12 1 44 59.6 13 199 12 64 59 43 67 9 46 64 29 51 67 43 23 -1.66 78 0 0 66 30 47 1 45 1.6 13 200 12 65 27 12 67 37 28 64 57 17 68 11 8 -1.66 79 0 0 66 57 56 1 45 3.5 12 201 12 65 54 16 68 4 42 65 24 20 68 38 25 -1.66 80 0 0 67 24 38 1 45 5.3 12 202 13 66 20 55 68 31 28 65 50 57 69 5 13 -1.66 81 0 0 67 50 52 1 45 7.0 11 203 13 66 47 7 68 57 44 66 17 9 69 31 30 -1.66 82 0 0 68 16 38 1 45 8.6 10 204 13 67 12 53 69 23 30 66 42 54 69 57 17 -1.66 83 0 0 68 41 55 1 45 10.0 10 205 13 67 38 11 69 48 46 67 8 13 70 22 32 -1.67 84 0 0 69 6 42 1 45 11.4 9 206 14 68 3 1 70 13 30 67 33 4 70 47 15 -1.67 85 0 0 69 30 59 1 45 12.6 9 206 14 68 27 22 70 37 43 67 57 27 71 11 25 -1.67 86 0 0 69 54 46 1 45 13.8 8 207 14 68 51 14 71 1 24 68 21 22 71 35 3 -1.67 87 0 0 70 18 2 1 45 14.9 8 208 14 69 14 37 71 24 33 68 44 48 71 58 7 -1.67 88 0 0 70 40 48 1 45 15.8 7 209 14 69 37 31 71 47 9 69 7 45 72 20 39 -1.67 89 0 0 71 3 2 1 45 16.7 7 210 15 69 59 54 72 9 12 69 30 12 72 42 36 -1.67 90 0 0 71 24 45 1 45 17.6 6 211 15 70 21 47 72 30 43 69 52 10 73 4 0 -1.67 91 0 0 71 45 56 1 45 18.3 6 212 15 70 43 11 72 51 41 70 13 39 73 24 51 -1.67 92 0 0 72 6 37 1 45 19.0 5 213 15 71 4 4 73 12 6 70 34 38 73 45 9 -1.67 93 0 0 72 26 46 1 45 19.6 5 214 15 71 24 28 73 32 0 70 55 8 74 4 53 -1.68 94 0 0 72 46 24 1 45 20.1 5 215 15 71 44 21 73 51 21 71 15 8 74 24 5 -1.68 95 0 0 73 5 32 1 45 20.6 4 216 15 72 3 45 74 10 10 71 34 39 74 42 44 -1.68 96 0 0 73 24 9 1 45 21.0 4 217 15 72 22 39 74 28 27 71 53 41 75 0 51 -1.68 97 0 0 73 42 16 1 45 21.4 3 218 16 72 41 4 74 46 14 72 12 14 75 18 26 -1.68 98 0 0 73 59 53 1 45 21.7 3 219 16 72 59 0 75 3 29 72 30 18 75 35 30 -1.69 99 0 0 74 17 0 1 45 22.0 3 220 16 73 16 27 75 20 15 72 47 54 75 52 4 -1.69 100 0 0 74 33 39 1 45 22.2 2 221 16 73 33 26 75 36 31 73 5 2 76 8 7 -1.70 101 0 0 74 49 49 1 45 22.4 2 222 16 73 49 57 75 52 17 73 21 42 76 23 41 -1.71 102 0 0 75 5 31 1 45 22.5 1 223 16 74 6 0 76 7 35 73 37 55 76 38 46 -1.72 103 0 0 75 20 46 1 45 22.6 1 224 16 74 21 37 76 22 25 73 53 41 .. .. .. -1.74 104 0 0 75 35 33 1 45 22.7 1 225 16 74 36 47 .. .. .. 74 9 1 .. .. .. -1.78 105 0 0 75 49 54 1 45 22.8 0 226 16 74 51 30 .. .. .. 74 23 55 .. .. .. -1.90 106 0 0 .. .. .... .. .. .. .. .. .. 75 5 48 .. .. .. 74 38 23 .. .. .. .... 107 0 0 .. .. .... .. .. .. .. .. .. 75 19 41 .. .. .. 74 52 26 .. .. .. .... 108 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. 75 6 5 .. .. .. .... Uncertainty in time = +/- 3 secs Prediction of 2023 Feb 15.9 Data for the target star ------------------------ * name: UCAC4-402-083153 * constellation : Scutum * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 42 17.9334 DE: -09 36 42.590 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 42 17.9334 DE: -09 36 42.590 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (676) Melitta asteroid class: approx. diameter [km]: 83 approx. diameter ["]: 0.043 distance from Earth [AU]: 2.63520 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#61 date of fit: 2023 Feb 09 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): 0.024", 0.004", 93.818° remarks: * orbital elements for (676)Melitta : Mean anomaly = 297.7597944400 deg Arg. of pericenter = 185.1509367626 deg Long. of node = 150.2253104804 deg Inclination = 12.8405644891 deg Eccentricity = 0.1219873035 Semimajor axis = 3.0620299166 AU Perihelion dist = 2.6885011439 AU Mag: H = 9.53, G = 0.15 Epoch of elements : MJD 60042.07062500 TDT (2023 Apr 08.0706) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#612023Feb09,5.66,2023,4,8,1.693933,-0.302943,0.798063,7.712202,2.928816,-0.005671,-0.000598,0.000000,0.000000 59.4172,-9.5914,155.10,7.05,False UCAC4-402-083153,18.70498147,-9.6118305,0.00,12.45,0.00,0.0,0,,18.72614635,-9.5913704,2.63,0.00,0,0,0 676,Melitta,14.98,82.7,2.6352,0,0,1.740,9.78,,4.6,0 0,297.5629,2023,4,7,185.1509,150.2253,12.8406,0.12199,3.06203,2.68850,9.55,5.0,0.15 1.243,0.0237,0.0040,94,0.0105,Known errors,-1.00,-1,-1,-1 20230408_083153,59990.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Feb 15, 20:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org