IOTA/IOTA-ES occultation update for (1266) Tone / TYC 6884-02215-1 event on 2022 Oct 23, 00:26 UT Visible from E USA Summary ------- On 2022 Oct 23 UT, the 80.6 km diameter asteroid (1266) Tone will occult a 11.0 mag star in the constellation Sagittarius for observers along a path across E USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.53 mag to 15.55 mag (the magnitude of the asteroid) for at most 3.570 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 Oct 23, 00:22 - 2022 Oct 23, 00:30 * geocentric midpoint of event [JD]: 2459875.51836216 * magnitude of target star: 11.04 * magnitude drop [mag]: 4.53 * estimated maximum duration [s]: 3.570 * Moon: 7 % sunlit, 109° distance * Sun: 80° distance * rough path description: E USA The occultation path -------------------- * approximate projected width [km]: 102 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.005", 73°) * approx speed of asteroid's shadow [km/s]: 22.5700 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6884-02215-1 by 1266 Tone on 2022 Oct 23 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 170 0 0 10 38 11 0 22 42.1 0 117 68 10 7 38 11 8 58 9 58 22 11 18 23 .... 171 0 0 10 8 50 0 22 42.2 1 117 69 9 38 26 10 39 27 9 29 14 10 48 49 -0.35 172 0 0 9 40 16 0 22 42.4 3 117 69 9 10 3 10 10 43 9 0 53 10 20 2 -0.53 173 0 0 9 12 31 0 22 42.8 4 117 69 8 42 27 9 42 48 8 33 20 9 52 4 -0.60 174 0 0 8 45 34 0 22 43.3 5 118 70 8 15 39 9 15 42 8 6 35 9 24 55 -0.64 175 0 0 8 19 25 0 22 43.9 6 118 70 7 49 39 8 49 24 7 40 37 8 58 34 -0.66 176 0 0 7 54 4 0 22 44.6 7 118 70 7 24 27 8 23 54 7 15 28 8 33 2 -0.68 177 0 0 7 29 32 0 22 45.5 8 118 70 7 0 3 7 59 14 6 51 7 8 8 19 -0.69 178 0 0 7 5 49 0 22 46.5 9 118 70 6 36 28 7 35 22 6 27 34 7 44 24 -0.70 179 0 0 6 42 54 0 22 47.6 10 118 70 6 13 41 7 12 19 6 4 50 7 21 19 -0.70 -180 0 0 6 20 48 0 22 48.8 11 118 70 5 51 43 6 50 6 5 42 53 6 59 3 -0.71 -179 0 0 5 59 31 0 22 50.1 12 119 70 5 30 33 6 28 41 5 21 46 6 37 36 -0.72 -178 0 0 5 39 2 0 22 51.5 13 119 69 5 10 11 6 8 5 5 1 26 6 16 58 -0.72 -177 0 0 5 19 23 0 22 53.1 14 119 69 4 50 38 5 48 19 4 41 55 5 57 10 -0.72 -176 0 0 5 0 32 0 22 54.7 15 119 69 4 31 53 5 29 21 4 23 13 5 38 10 -0.73 -175 0 0 4 42 29 0 22 56.5 16 119 68 4 13 57 5 11 13 4 5 18 5 20 0 -0.73 -174 0 0 4 25 16 0 22 58.4 17 119 68 3 56 50 4 53 53 3 48 12 5 2 38 -0.73 -173 0 0 4 8 51 0 23 0.4 18 119 67 3 40 30 4 37 23 3 31 55 4 46 6 -0.73 -172 0 0 3 53 15 0 23 2.5 19 120 67 3 24 59 4 21 41 3 16 25 4 30 23 -0.74 -171 0 0 3 38 27 0 23 4.6 20 120 66 3 10 17 4 6 49 3 1 44 4 15 29 -0.74 -170 0 0 3 24 28 0 23 6.9 21 120 66 2 56 22 3 52 45 2 47 51 4 1 23 -0.74 -169 0 0 3 11 18 0 23 9.3 22 120 65 2 43 16 3 39 30 2 34 47 3 48 7 -0.74 -168 0 0 2 58 56 0 23 11.8 23 120 64 2 30 58 3 27 3 2 22 30 3 35 39 -0.74 -167 0 0 2 47 22 0 23 14.3 24 121 63 2 19 29 3 15 26 2 11 1 3 24 0 -0.75 -166 0 0 2 36 37 0 23 17.0 25 121 63 2 8 47 3 4 37 2 0 21 3 13 10 -0.75 -165 0 0 2 26 40 0 23 19.8 26 121 62 1 58 53 2 54 36 1 50 28 3 3 9 -0.75 -164 0 0 2 17 31 0 23 22.6 27 121 61 1 49 48 2 45 25 1 41 23 2 53 56 -0.75 -163 0 0 2 9 11 0 23 25.5 28 121 60 1 41 30 2 37 2 1 33 7 2 45 32 -0.75 -162 0 0 2 1 39 0 23 28.6 29 122 59 1 34 1 2 29 27 1 25 38 2 37 57 -0.75 -161 0 0 1 54 55 0 23 31.7 30 122 58 1 27 19 2 22 41 1 18 57 2 31 10 -0.75 -160 0 0 1 48 59 0 23 34.9 31 122 58 1 21 25 2 16 43 1 13 4 2 25 12 -0.75 -159 0 0 1 43 52 0 23 38.1 32 123 57 1 16 19 2 11 34 1 7 58 2 20 2 -0.75 -158 0 0 1 39 32 0 23 41.5 33 123 56 1 12 1 2 7 13 1 3 41 2 15 41 -0.76 -157 0 0 1 36 1 0 23 44.9 33 123 55 1 8 31 2 3 41 1 0 11 2 12 9 -0.76 -156 0 0 1 33 18 0 23 48.5 34 124 54 1 5 49 2 0 58 0 57 29 2 9 25 -0.76 -155 0 0 1 31 24 0 23 52.1 35 124 53 1 3 55 1 59 2 0 55 35 2 7 29 -0.76 -154 0 0 1 30 17 0 23 55.7 36 125 52 1 2 49 1 57 56 0 54 29 2 6 23 -0.76 -153 0 0 1 29 59 0 23 59.5 37 125 51 1 2 31 1 57 38 0 54 11 2 6 5 -0.76 -152 0 0 1 30 29 0 24 3.3 38 125 50 1 3 0 1 58 8 0 54 40 2 6 35 -0.76 -151 0 0 1 31 48 0 24 7.2 38 126 49 1 4 18 1 59 27 0 55 58 2 7 55 -0.76 -150 0 0 1 33 55 0 24 11.2 39 127 48 1 6 24 2 1 35 0 58 4 2 10 3 -0.76 -149 0 0 1 36 50 0 24 15.2 40 127 47 1 9 19 2 4 32 1 0 58 2 13 0 -0.76 -148 0 0 1 40 34 0 24 19.3 41 128 46 1 13 1 2 8 18 1 4 40 2 16 46 -0.76 -147 0 0 1 45 7 0 24 23.5 42 128 45 1 17 32 2 12 52 1 9 10 2 21 21 -0.76 -146 0 0 1 50 28 0 24 27.7 42 129 44 1 22 51 2 18 16 1 14 29 2 26 45 -0.76 -145 0 0 1 56 39 0 24 32.0 43 130 43 1 28 59 2 24 28 1 20 36 2 32 59 -0.76 -144 0 0 2 3 38 0 24 36.4 44 130 42 1 35 56 2 31 30 1 27 32 2 40 2 -0.76 -143 0 0 2 11 26 0 24 40.9 44 131 41 1 43 41 2 39 22 1 35 16 2 47 54 -0.76 -142 0 0 2 20 4 0 24 45.4 45 132 40 1 52 15 2 48 2 1 43 50 2 56 35 -0.76 -141 0 0 2 29 30 0 24 49.9 46 133 39 2 1 38 2 57 33 1 53 12 3 6 7 -0.76 -140 0 0 2 39 46 0 24 54.5 46 134 38 2 11 51 3 7 53 2 3 23 3 16 28 -0.77 -139 0 0 2 50 52 0 24 59.2 47 135 37 2 22 52 3 19 2 2 14 23 3 27 39 -0.77 -138 0 0 3 2 47 0 25 4.0 48 136 36 2 34 43 3 31 2 2 26 13 3 39 40 -0.77 -137 0 0 3 15 32 0 25 8.8 48 137 35 2 47 24 3 43 52 2 38 52 3 52 32 -0.77 -136 0 0 3 29 8 0 25 13.6 49 138 34 3 0 54 3 57 32 2 52 20 4 6 14 -0.77 -135 0 0 3 43 33 0 25 18.5 49 139 33 3 15 14 4 12 3 3 6 39 4 20 46 -0.77 -134 0 0 3 58 48 0 25 23.5 50 140 32 3 30 23 4 27 24 3 21 47 4 36 9 -0.77 -133 0 0 4 14 54 0 25 28.5 50 141 31 3 46 23 4 43 36 3 37 45 4 52 23 -0.77 -132 0 0 4 31 50 0 25 33.5 50 143 30 4 3 13 5 0 39 3 54 33 5 9 27 -0.77 -131 0 0 4 49 37 0 25 38.6 51 144 29 4 20 54 5 18 32 4 12 11 5 27 23 -0.77 -130 0 0 5 8 15 0 25 43.7 51 145 28 4 39 25 5 37 17 4 30 40 5 46 10 -0.77 -129 0 0 5 27 43 0 25 48.9 51 147 27 4 58 46 5 56 53 4 49 59 6 5 48 -0.77 -128 0 0 5 48 3 0 25 54.1 52 148 26 5 18 58 6 17 20 5 10 9 6 26 17 -0.77 -127 0 0 6 9 14 0 25 59.4 52 149 25 5 40 1 6 38 38 5 31 10 6 47 38 -0.77 -126 0 0 6 31 15 0 26 4.7 52 151 23 6 1 55 7 0 48 5 53 1 7 9 51 -0.77 -125 0 0 6 54 8 0 26 10.0 52 152 22 6 24 39 7 23 50 6 15 43 7 32 55 -0.77 -124 0 0 7 17 53 0 26 15.4 52 154 21 6 48 15 7 47 43 6 39 16 7 56 51 -0.77 -123 0 0 7 42 29 0 26 20.7 52 155 20 7 12 42 8 12 28 7 3 41 8 21 39 -0.77 -122 0 0 8 7 56 0 26 26.2 53 157 19 7 38 0 8 38 5 7 28 55 8 47 18 -0.77 -121 0 0 8 34 14 0 26 31.6 52 159 18 8 4 8 9 4 33 7 55 1 9 13 49 -0.77 -120 0 0 9 1 24 0 26 37.0 52 160 17 8 31 8 9 31 53 8 21 58 9 41 12 -0.77 -119 0 0 9 29 25 0 26 42.5 52 162 16 8 58 59 10 0 4 8 49 46 10 9 27 -0.77 -118 0 0 9 58 17 0 26 48.0 52 163 15 9 27 41 10 29 7 9 18 24 10 38 33 -0.77 -117 0 0 10 28 0 0 26 53.5 52 165 14 9 57 13 10 59 1 9 47 54 11 8 30 -0.77 -116 0 0 10 58 34 0 26 59.0 52 167 13 10 27 36 11 29 46 10 18 13 11 39 19 -0.77 -115 0 0 11 29 58 0 27 4.5 51 168 11 10 58 49 12 1 22 10 49 23 12 10 59 -0.77 -114 0 0 12 2 13 0 27 10.0 51 170 10 11 30 53 12 33 49 11 21 23 12 43 29 -0.77 -113 0 0 12 35 18 0 27 15.5 51 171 9 12 3 46 13 7 6 11 54 13 13 16 50 -0.77 -112 0 0 13 9 13 0 27 21.0 50 173 8 12 37 28 13 41 14 12 27 52 13 51 2 -0.77 -111 0 0 13 43 57 0 27 26.5 50 174 7 13 12 0 14 16 11 13 2 20 14 26 2 -0.77 -110 0 0 14 19 31 0 27 31.9 49 176 6 13 47 21 14 51 57 13 37 36 15 1 53 -0.77 -109 0 0 14 55 52 0 27 37.4 49 177 5 14 23 29 15 28 31 14 13 41 15 38 31 -0.76 -108 0 0 15 33 1 0 27 42.8 48 179 4 15 0 25 16 5 54 14 50 33 16 15 58 -0.76 -107 0 0 16 10 57 0 27 48.2 48 180 3 15 38 8 16 44 4 15 28 12 16 54 12 -0.76 -106 0 0 16 49 40 0 27 53.5 47 181 2 16 16 37 17 23 1 16 6 37 17 33 13 -0.76 -105 0 0 17 29 8 0 27 58.8 46 183 0 16 55 51 18 2 43 16 45 47 18 13 0 -0.76 -104 0 0 18 9 21 0 28 4.1 46 184 -1 17 35 50 18 43 11 17 25 42 18 53 32 -0.76 -103 0 0 18 50 18 0 28 9.3 45 185 -2 18 16 33 19 24 22 18 6 20 19 34 48 -0.76 -102 0 0 19 31 57 0 28 14.5 44 186 -3 18 57 58 20 6 16 18 47 40 20 16 47 -0.76 -101 0 0 20 14 18 0 28 19.6 43 188 -4 19 40 4 20 48 52 19 29 43 20 59 27 -0.76 -100 0 0 20 57 20 0 28 24.6 42 189 -5 20 22 51 21 32 8 20 12 25 21 42 48 -0.76 - 99 0 0 21 41 0 0 28 29.6 41 190 -6 21 6 16 22 16 4 20 55 46 22 26 48 -0.76 - 98 0 0 22 25 18 0 28 34.4 41 191 -7 21 50 20 23 0 37 21 39 45 23 11 26 -0.76 - 97 0 0 23 10 12 0 28 39.2 40 192 -8 22 34 59 23 45 47 22 24 20 23 56 41 -0.76 - 96 0 0 23 55 41 0 28 44.0 39 193 -9 23 20 13 24 31 31 23 9 29 24 42 30 -0.76 - 95 0 0 24 41 42 0 28 48.6 38 194 -10 24 5 59 25 17 48 23 55 11 25 28 51 -0.76 - 94 0 0 25 28 15 0 28 53.1 37 195 -11 24 52 17 26 4 36 24 41 25 26 15 44 -0.76 - 93 0 0 26 15 17 0 28 57.5 36 196 -12 25 39 4 26 51 53 25 28 7 27 3 6 -0.76 - 92 0 0 27 2 46 0 29 1.9 35 197 -13 26 26 19 27 39 38 26 15 17 27 50 56 -0.76 - 91 0 0 27 50 41 0 29 6.1 34 198 -14 27 13 58 28 27 47 27 2 53 28 39 10 -0.76 - 90 0 0 28 38 58 0 29 10.2 33 199 -15 28 2 1 29 16 20 27 50 51 29 27 47 -0.76 - 89 0 0 29 27 37 0 29 14.1 32 199 -16 28 50 26 30 5 13 28 39 11 30 16 46 -0.76 - 88 0 0 30 16 34 0 29 18.0 31 200 -17 29 39 8 30 54 25 29 27 50 31 6 2 -0.76 - 87 0 0 31 5 47 0 29 21.7 30 201 -18 30 28 8 31 43 53 30 16 45 31 55 34 -0.76 - 86 0 0 31 55 14 0 29 25.3 28 202 -19 31 17 21 32 33 34 31 5 54 32 45 20 -0.76 - 85 0 0 32 44 53 0 29 28.7 27 203 -20 32 6 46 33 23 26 31 55 15 33 35 16 -0.76 - 84 0 0 33 34 40 0 29 32.0 26 203 -21 32 56 20 34 13 27 32 44 45 34 25 21 -0.76 - 83 0 0 34 24 33 0 29 35.2 25 204 -21 33 46 1 35 3 33 33 34 22 35 15 31 -0.76 - 82 0 0 35 14 30 0 29 38.3 24 205 -22 34 35 45 35 53 43 34 24 3 36 5 45 -0.76 - 81 0 0 36 4 27 0 29 41.1 23 206 -23 35 25 31 36 43 52 35 13 45 36 55 58 -0.76 - 80 0 0 36 54 22 0 29 43.9 22 206 -24 36 15 15 37 33 59 36 3 26 37 46 9 -0.76 - 79 0 0 37 44 13 0 29 46.5 21 207 -24 37 4 55 38 24 1 36 53 3 38 36 14 -0.76 - 78 0 0 38 33 57 0 29 48.9 20 208 -25 37 54 28 39 13 55 37 42 33 39 26 12 -0.76 - 77 0 0 39 23 30 0 29 51.2 19 209 -26 38 43 52 40 3 39 38 31 54 40 15 58 -0.76 - 76 0 0 40 12 51 0 29 53.4 17 209 -27 39 33 4 40 53 9 39 21 4 41 5 31 -0.77 - 75 0 0 41 1 57 0 29 55.4 16 210 -27 40 22 2 41 42 23 40 9 59 41 54 48 -0.77 - 74 0 0 41 50 44 0 29 57.3 15 211 -28 41 10 42 42 31 18 40 58 36 42 43 45 -0.77 - 73 0 0 42 39 11 0 29 59.0 14 212 -28 41 59 2 43 19 52 41 46 55 43 32 22 -0.77 - 72 0 0 43 27 15 0 30 0.6 13 212 -29 42 47 0 44 8 2 42 34 51 44 20 34 -0.77 - 71 0 0 44 14 54 0 30 2.0 12 213 -29 43 34 33 44 55 46 43 22 23 45 8 19 -0.77 - 70 0 0 45 2 5 0 30 3.3 11 214 -30 44 21 40 45 43 2 44 9 28 45 55 36 -0.77 - 69 0 0 45 48 45 0 30 4.5 10 215 -30 45 8 17 46 29 46 44 56 5 46 42 22 -0.77 - 68 0 0 46 34 54 0 30 5.6 9 215 -31 45 54 24 47 15 58 45 42 10 47 28 35 -0.77 - 67 0 0 47 20 29 0 30 6.5 8 216 -31 46 39 57 48 1 35 46 27 42 48 14 12 -0.77 - 66 0 0 48 5 28 0 30 7.3 7 217 -32 47 24 54 48 46 34 47 12 40 48 59 12 -0.78 - 65 0 0 48 49 49 0 30 8.0 6 218 -32 48 9 15 49 30 55 47 57 1 49 43 33 -0.78 - 64 0 0 49 33 30 0 30 8.5 5 218 -32 48 52 58 50 14 36 48 40 44 50 27 14 -0.78 - 63 0 0 50 16 31 0 30 9.0 4 219 -33 49 36 0 50 57 35 49 23 46 51 10 12 -0.79 - 62 0 0 50 58 49 0 30 9.3 3 220 -33 50 18 21 51 39 51 50 6 8 51 52 27 -0.80 - 61 0 0 51 40 24 0 30 9.6 2 221 -33 50 59 59 52 21 22 50 47 47 52 33 57 -0.81 - 60 0 0 52 21 14 0 30 9.7 1 221 -34 51 40 53 53 2 7 51 28 42 53 14 41 -0.85 - 59 0 0 53 1 18 0 30 9.8 0 222 -34 52 21 2 .. .. .. 52 8 53 .. .. .. -1.11 Uncertainty in time = +/- 1 secs Prediction of 2022 Oct 17.0 Data for the target star ------------------------ * name: TYC 6884-02215-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 24 11.0029 DE: -26 20 37.010 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 24 11.0028 DE: -26 20 37.010 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1266) Tone asteroid class: approx. diameter [km]: 81 approx. diameter ["]: 0.034 distance from Earth [AU]: 3.25990 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2022 Sep 23 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): 0.011", 0.005", 72.934° remarks: * orbital elements for (1266)Tone : Mean anomaly = 41.1726754580 deg Arg. of pericenter = 300.0832464820 deg Long. of node = 320.5956518096 deg Inclination = 17.1874451902 deg Eccentricity = 0.0508472429 Semimajor axis = 3.3565898601 AU Perihelion dist = 3.1859165202 AU Mag: H = 9.51, G = 0.15 Epoch of elements : MJD 59875.01847222 TDT (2022 Oct 23.0185) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542022Sep23,3.57,2022,10,23,0.440692,-0.261373,0.549441,11.498103,5.484422,0.005789,0.000769,0.000000,0.000000 -106.6294,-26.3006,169.49,-11.32,False TYC 6884-02215-1,19.40305637,-26.3436139,0.00,11.04,0.00,0.0,0,,19.42612025,-26.3005731,4.52,0.00,0,0,0 1266,Tone,15.55,80.6,3.2599,0,0,2.306,14.79,,4.2,0 0,41.0094,2022,10,22,300.0832,320.5957,17.1874,0.05085,3.35659,3.18592,9.51,5.0,0.15 1.152,0.0107,0.0050,73,0.0052,Known errors,-1.00,-1,-1,-1 20221023_2215-1,59868.96 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Oct 16, 23:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org