IOTA/IOTA-ES occultation update for (1191) Alfaterna / TYC 0177-02819-1 event on 2023 Dec 06, 13:51 UT Visible from Japan, China Summary ------- On 2023 Dec 06 UT, the 45.1 km diameter asteroid (1191) Alfaterna will occult a 11.7 mag star in the constellation Canis Minor for observers along a path across Japan, China. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.85 mag to 15.48 mag (the magnitude of the asteroid) for at most 5.970 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 Dec 06, 13:38 - 2023 Dec 06, 14:05 * geocentric midpoint of event [JD]: 2460285.07764245 * magnitude of target star: 11.66 * magnitude drop [mag]: 3.85 * estimated maximum duration [s]: 5.970 * Moon: 38 % sunlit, 67° distance * Sun: 140° distance * rough path description: Japan, China The occultation path -------------------- * approximate projected width [km]: 48 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.001", 81°) * approx speed of asteroid's shadow [km/s]: 7.5514 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0177-02819-1 by 1191 Alfaterna on 2023 Dec 6 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 91 0 0 31 28 9 14 5 7.5 0 82 -40 31 41 8 .. .. .. 31 45 27 .. .. .. .... 92 0 0 31 34 59 14 5 7.4 1 83 -41 31 47 58 31 22 1 31 52 17 31 17 44 -0.22 93 0 0 31 41 36 14 5 7.1 2 83 -42 31 54 35 31 28 39 31 58 53 31 24 21 -0.28 94 0 0 31 48 0 14 5 6.5 3 84 -43 32 0 58 31 35 2 32 5 16 31 30 45 -0.29 95 0 0 31 54 10 14 5 5.8 3 84 -44 32 7 8 31 41 13 32 11 26 31 36 56 -0.30 96 0 0 32 0 6 14 5 4.9 4 85 -45 32 13 4 31 47 10 32 17 22 31 42 53 -0.31 97 0 0 32 5 50 14 5 3.9 5 85 -45 32 18 47 31 52 53 32 23 5 31 48 36 -0.31 98 0 0 32 11 19 14 5 2.6 6 86 -46 32 24 16 31 58 23 32 28 34 31 54 6 -0.32 99 0 0 32 16 35 14 5 1.1 7 87 -47 32 29 32 32 3 39 32 33 50 31 59 23 -0.32 100 0 0 32 21 38 14 4 59.4 8 87 -48 32 34 34 32 8 42 32 38 52 32 4 26 -0.32 101 0 0 32 26 27 14 4 57.6 9 88 -49 32 39 23 32 13 32 32 43 41 32 9 15 -0.32 102 0 0 32 31 3 14 4 55.6 9 88 -50 32 43 59 32 18 8 32 48 16 32 13 51 -0.32 103 0 0 32 35 25 14 4 53.3 10 89 -50 32 48 20 32 22 30 32 52 38 32 18 13 -0.32 104 0 0 32 39 33 14 4 50.9 11 89 -51 32 52 29 32 26 39 32 56 46 32 22 22 -0.32 105 0 0 32 43 28 14 4 48.4 12 90 -52 32 56 24 32 30 34 33 0 41 32 26 18 -0.32 106 0 0 32 47 10 14 4 45.6 13 90 -53 33 0 5 32 34 16 33 4 22 32 29 59 -0.33 107 0 0 32 50 38 14 4 42.6 14 91 -54 33 3 33 32 37 44 33 7 50 32 33 28 -0.33 108 0 0 32 53 52 14 4 39.5 14 91 -54 33 6 47 32 40 58 33 11 4 32 36 42 -0.33 109 0 0 32 56 53 14 4 36.2 15 92 -55 33 9 48 32 44 0 33 14 5 32 39 43 -0.33 110 0 0 32 59 41 14 4 32.8 16 92 -56 33 12 35 32 46 47 33 16 52 32 42 31 -0.33 111 0 0 33 2 15 14 4 29.1 17 93 -57 33 15 9 32 49 21 33 19 26 32 45 5 -0.33 112 0 0 33 4 35 14 4 25.3 18 94 -58 33 17 30 32 51 42 33 21 46 32 47 26 -0.33 113 0 0 33 6 42 14 4 21.3 18 94 -59 33 19 37 32 53 49 33 23 53 32 49 33 -0.33 114 0 0 33 8 36 14 4 17.2 19 95 -59 33 21 30 32 55 43 33 25 47 32 51 27 -0.33 115 0 0 33 10 16 14 4 12.8 20 95 -60 33 23 10 32 57 23 33 27 27 32 53 7 -0.33 116 0 0 33 11 43 14 4 8.4 21 96 -61 33 24 37 32 58 50 33 28 54 32 54 34 -0.33 117 0 0 33 12 57 14 4 3.7 22 96 -62 33 25 51 33 0 4 33 30 7 32 55 48 -0.33 118 0 0 33 13 57 14 3 58.9 23 97 -62 33 26 51 33 1 4 33 31 8 32 56 48 -0.33 119 0 0 33 14 44 14 3 53.9 23 98 -63 33 27 38 33 1 51 33 31 54 32 57 35 -0.33 120 0 0 33 15 17 14 3 48.8 24 98 -64 33 28 11 33 2 24 33 32 28 32 58 9 -0.33 121 0 0 33 15 38 14 3 43.5 25 99 -65 33 28 32 33 2 45 33 32 48 32 58 29 -0.33 122 0 0 33 15 45 14 3 38.0 26 99 -66 33 28 39 33 2 52 33 32 55 32 58 36 -0.33 123 0 0 33 15 38 14 3 32.4 27 100 -66 33 28 32 33 2 45 33 32 49 32 58 29 -0.33 124 0 0 33 15 19 14 3 26.6 27 101 -67 33 28 13 33 2 26 33 32 30 32 58 10 -0.33 125 0 0 33 14 46 14 3 20.7 28 101 -68 33 27 41 33 1 53 33 31 57 32 57 37 -0.33 126 0 0 33 14 1 14 3 14.6 29 102 -69 33 26 55 33 1 7 33 31 12 32 56 51 -0.33 127 0 0 33 13 2 14 3 8.4 30 102 -69 33 25 56 33 0 8 33 30 13 32 55 52 -0.33 128 0 0 33 11 50 14 3 2.0 31 103 -70 33 24 44 32 58 56 33 29 1 32 54 40 -0.34 129 0 0 33 10 25 14 2 55.5 31 104 -71 33 23 19 32 57 31 33 27 36 32 53 15 -0.34 130 0 0 33 8 47 14 2 48.8 32 104 -72 33 21 42 32 55 53 33 25 59 32 51 37 -0.34 131 0 0 33 6 56 14 2 42.0 33 105 -72 33 19 51 32 54 2 33 24 8 32 49 45 -0.34 132 0 0 33 4 52 14 2 35.0 34 106 -73 33 17 47 32 51 58 33 22 4 32 47 41 -0.34 133 0 0 33 2 35 14 2 27.8 35 106 -74 33 15 30 32 49 41 33 19 47 32 45 24 -0.34 134 0 0 33 0 5 14 2 20.6 35 107 -74 33 13 1 32 47 11 33 17 18 32 42 54 -0.34 135 0 0 32 57 23 14 2 13.2 36 108 -75 33 10 19 32 44 28 33 14 36 32 40 11 -0.34 136 0 0 32 54 27 14 2 5.6 37 108 -76 33 7 23 32 41 32 33 11 41 32 37 16 -0.34 137 0 0 32 51 19 14 1 57.9 38 109 -76 33 4 16 32 38 24 33 8 33 32 34 7 -0.34 138 0 0 32 47 59 14 1 50.1 39 110 -77 33 0 55 32 35 3 33 5 13 32 30 46 -0.34 139 0 0 32 44 25 14 1 42.1 39 110 -77 32 57 22 32 31 29 33 1 39 32 27 12 -0.34 140 0 0 32 40 39 14 1 34.0 40 111 -78 32 53 36 32 27 43 32 57 54 32 23 26 -0.34 141 0 0 32 36 40 14 1 25.7 41 112 -78 32 49 38 32 23 44 32 53 56 32 19 27 -0.34 142 0 0 32 32 29 14 1 17.3 42 113 -79 32 45 27 32 19 33 32 49 45 32 15 16 -0.34 143 0 0 32 28 6 14 1 8.8 42 113 -79 32 41 4 32 15 9 32 45 22 32 10 52 -0.34 144 0 0 32 23 30 14 1 0.2 43 114 -80 32 36 28 32 10 32 32 40 46 32 6 15 -0.34 145 0 0 32 18 41 14 0 51.4 44 115 -80 32 31 40 32 5 44 32 35 58 32 1 26 -0.34 146 0 0 32 13 41 14 0 42.5 45 116 -80 32 26 40 32 0 43 32 30 58 31 56 25 -0.34 147 0 0 32 8 28 14 0 33.4 46 116 -80 32 21 27 31 55 30 32 25 45 31 51 12 -0.34 148 0 0 32 3 3 14 0 24.3 46 117 -80 32 16 2 31 50 4 32 20 21 31 45 46 -0.34 149 0 0 31 57 25 14 0 15.0 47 118 -80 32 10 25 31 44 26 32 14 44 31 40 9 -0.34 150 0 0 31 51 36 14 0 5.5 48 119 -80 32 4 36 31 38 37 32 8 55 31 34 19 -0.34 151 0 0 31 45 35 13 59 56.0 49 120 -80 31 58 35 31 32 35 32 2 54 31 28 17 -0.34 152 0 0 31 39 21 13 59 46.3 49 121 -80 31 52 22 31 26 21 31 56 41 31 22 3 -0.34 153 0 0 31 32 56 13 59 36.5 50 121 -80 31 45 58 31 19 56 31 50 17 31 15 38 -0.34 154 0 0 31 26 19 13 59 26.6 51 122 -79 31 39 21 31 13 19 31 43 40 31 9 0 -0.34 155 0 0 31 19 31 13 59 16.6 52 123 -79 31 32 33 31 6 29 31 36 52 31 2 11 -0.34 156 0 0 31 12 30 13 59 6.4 52 124 -79 31 25 33 30 59 29 31 29 52 30 55 10 -0.34 157 0 0 31 5 18 13 58 56.2 53 125 -78 31 18 21 30 52 16 31 22 41 30 47 58 -0.34 158 0 0 30 57 55 13 58 45.8 54 126 -78 31 10 58 30 44 53 31 15 18 30 40 34 -0.34 159 0 0 30 50 20 13 58 35.3 55 127 -77 31 3 24 30 37 17 31 7 44 30 32 58 -0.34 160 0 0 30 42 34 13 58 24.7 55 128 -76 30 55 38 30 29 31 30 59 58 30 25 11 -0.34 161 0 0 30 34 36 13 58 14.0 56 129 -76 30 47 41 30 21 33 30 52 1 30 17 13 -0.34 162 0 0 30 26 28 13 58 3.2 57 130 -75 30 39 33 30 13 24 30 43 53 30 9 4 -0.34 163 0 0 30 18 8 13 57 52.3 57 132 -75 30 31 13 30 5 4 30 35 34 30 0 44 -0.34 164 0 0 30 9 37 13 57 41.3 58 133 -74 30 22 43 29 56 32 30 27 4 29 52 13 -0.34 165 0 0 30 0 56 13 57 30.1 59 134 -73 30 14 2 29 47 50 30 18 23 29 43 31 -0.34 166 0 0 29 52 3 13 57 18.9 60 135 -73 30 5 10 29 38 58 30 9 31 29 34 38 -0.34 167 0 0 29 43 0 13 57 7.6 60 137 -72 29 56 7 29 29 54 30 0 28 29 25 34 -0.34 168 0 0 29 33 46 13 56 56.2 61 138 -71 29 46 54 29 20 40 29 51 15 29 16 20 -0.34 169 0 0 29 24 22 13 56 44.7 62 139 -70 29 37 30 29 11 15 29 41 51 29 6 55 -0.34 170 0 0 29 14 48 13 56 33.1 62 141 -70 29 27 56 29 1 40 29 32 17 28 57 20 -0.34 171 0 0 29 5 3 13 56 21.4 63 142 -69 29 18 12 28 51 55 29 22 33 28 47 35 -0.34 172 0 0 28 55 8 13 56 9.6 63 144 -68 29 8 17 28 42 0 29 12 39 28 37 39 -0.34 173 0 0 28 45 3 13 55 57.7 64 146 -67 28 58 12 28 31 55 29 2 34 28 27 33 -0.34 174 0 0 28 34 48 13 55 45.8 65 147 -66 28 47 58 28 21 39 28 52 20 28 17 18 -0.34 175 0 0 28 24 23 13 55 33.7 65 149 -66 28 37 34 28 11 14 28 41 56 28 6 53 -0.34 176 0 0 28 13 49 13 55 21.6 66 151 -65 28 27 0 28 0 39 28 31 22 27 56 18 -0.34 177 0 0 28 3 5 13 55 9.4 66 153 -64 28 16 16 27 49 55 28 20 39 27 45 34 -0.34 178 0 0 27 52 12 13 54 57.2 67 155 -63 28 5 23 27 39 1 28 9 46 27 34 40 -0.34 179 0 0 27 41 9 13 54 44.8 67 157 -62 27 54 21 27 27 59 27 58 44 27 23 37 -0.34 -180 0 0 27 29 58 13 54 32.4 68 159 -62 27 43 10 27 16 47 27 47 33 27 12 25 -0.34 -179 0 0 27 18 37 13 54 20.0 68 162 -61 27 31 50 27 5 26 27 36 12 27 1 4 -0.34 -178 0 0 27 7 8 13 54 7.4 69 164 -60 27 20 21 26 53 56 27 24 43 26 49 34 -0.34 -177 0 0 26 55 29 13 53 54.8 69 166 -59 27 8 43 26 42 17 27 13 6 26 37 55 -0.34 -176 0 0 26 43 43 13 53 42.2 70 169 -58 26 56 56 26 30 30 27 1 20 26 26 8 -0.34 -175 0 0 26 31 48 13 53 29.5 70 171 -57 26 45 2 26 18 35 26 49 25 26 14 12 -0.34 -174 0 0 26 19 45 13 53 16.7 70 174 -57 26 32 59 26 6 31 26 37 22 26 2 9 -0.34 -173 0 0 26 7 33 13 53 3.9 70 177 -56 26 20 48 25 54 20 26 25 11 25 49 57 -0.34 -172 0 0 25 55 14 13 52 51.1 71 180 -55 26 8 29 25 42 0 26 12 53 25 37 38 -0.34 -171 0 0 25 42 47 13 52 38.2 71 183 -54 25 56 3 25 29 33 26 0 26 25 25 10 -0.34 -170 0 0 25 30 13 13 52 25.3 71 186 -53 25 43 28 25 16 58 25 47 52 25 12 35 -0.34 -169 0 0 25 17 31 13 52 12.3 71 189 -52 25 30 47 25 4 16 25 35 11 24 59 53 -0.34 -168 0 0 25 4 42 13 51 59.3 71 192 -51 25 17 58 24 51 27 25 22 22 24 47 4 -0.34 -167 0 0 24 51 46 13 51 46.3 71 195 -50 25 5 3 24 38 31 25 9 27 24 34 8 -0.34 -166 0 0 24 38 44 13 51 33.2 71 198 -50 24 52 0 24 25 28 24 56 24 24 21 5 -0.34 -165 0 0 24 25 34 13 51 20.1 71 201 -49 24 38 51 24 12 19 24 43 15 24 7 55 -0.34 -164 0 0 24 12 19 13 51 7.0 71 204 -48 24 25 36 23 59 3 24 30 0 23 54 39 -0.34 -163 0 0 23 58 57 13 50 53.9 71 206 -47 24 12 14 23 45 41 24 16 38 23 41 17 -0.34 -162 0 0 23 45 29 13 50 40.8 71 209 -46 23 58 46 23 32 12 24 3 11 23 27 49 -0.34 -161 0 0 23 31 55 13 50 27.6 70 212 -45 23 45 13 23 18 38 23 49 37 23 14 15 -0.34 -160 0 0 23 18 16 13 50 14.5 70 215 -44 23 31 33 23 4 59 23 35 58 23 0 35 -0.34 -159 0 0 23 4 31 13 50 1.3 70 218 -43 23 17 49 22 51 14 23 22 13 22 46 50 -0.34 -158 0 0 22 50 41 13 49 48.2 69 220 -42 23 3 59 22 37 24 23 8 24 22 33 0 -0.34 -157 0 0 22 36 46 13 49 35.1 69 223 -42 22 50 4 22 23 29 22 54 29 22 19 5 -0.34 -156 0 0 22 22 46 13 49 21.9 69 225 -41 22 36 5 22 9 29 22 40 29 22 5 5 -0.34 -155 0 0 22 8 42 13 49 8.8 68 227 -40 22 22 0 21 55 24 22 26 25 21 51 0 -0.34 -154 0 0 21 54 33 13 48 55.8 68 230 -39 22 7 52 21 41 16 22 12 17 21 36 52 -0.34 -153 0 0 21 40 21 13 48 42.7 67 232 -38 21 53 40 21 27 3 21 58 4 21 22 39 -0.34 -152 0 0 21 26 4 13 48 29.6 67 234 -37 21 39 23 21 12 46 21 43 48 21 8 22 -0.34 -151 0 0 21 11 44 13 48 16.6 66 236 -36 21 25 3 20 58 26 21 29 28 20 54 2 -0.34 -150 0 0 20 57 21 13 48 3.7 65 238 -35 21 10 40 20 44 3 21 15 5 20 39 39 -0.34 -149 0 0 20 42 54 13 47 50.7 65 239 -34 20 56 13 20 29 36 21 0 38 20 25 12 -0.34 -148 0 0 20 28 25 13 47 37.8 64 241 -33 20 41 44 20 15 7 20 46 9 20 10 42 -0.34 -147 0 0 20 13 52 13 47 25.0 63 243 -32 20 27 12 20 0 34 20 31 37 19 56 10 -0.34 -146 0 0 19 59 18 13 47 12.2 63 244 -32 20 12 37 19 46 0 20 17 2 19 41 36 -0.34 -145 0 0 19 44 41 13 46 59.5 62 246 -31 19 58 0 19 31 23 20 2 25 19 26 59 -0.33 -144 0 0 19 30 3 13 46 46.8 61 247 -30 19 43 22 19 16 45 19 47 47 19 12 20 -0.33 -143 0 0 19 15 22 13 46 34.2 61 248 -29 19 28 41 19 2 4 19 33 6 18 57 40 -0.33 -142 0 0 19 0 41 13 46 21.6 60 250 -28 19 14 0 18 47 23 19 18 25 18 42 58 -0.33 -141 0 0 18 45 58 13 46 9.2 59 251 -27 18 59 17 18 32 40 19 3 42 18 28 16 -0.33 -140 0 0 18 31 14 13 45 56.8 58 252 -26 18 44 33 18 17 56 18 48 58 18 13 32 -0.33 -139 0 0 18 16 30 13 45 44.5 57 253 -25 18 29 49 18 3 12 18 34 13 17 58 48 -0.33 -138 0 0 18 1 45 13 45 32.3 57 254 -24 18 15 4 17 48 27 18 19 29 17 44 3 -0.33 -137 0 0 17 47 0 13 45 20.1 56 255 -23 18 0 19 17 33 43 18 4 44 17 29 19 -0.33 -136 0 0 17 32 16 13 45 8.1 55 256 -22 17 45 34 17 18 58 17 49 59 17 14 34 -0.33 -135 0 0 17 17 31 13 44 56.2 54 257 -21 17 30 50 17 4 14 17 35 14 16 59 50 -0.33 -134 0 0 17 2 48 13 44 44.3 53 258 -20 17 16 6 16 49 31 17 20 31 16 45 7 -0.33 -133 0 0 16 48 5 13 44 32.6 53 259 -19 17 1 23 16 34 48 17 5 48 16 30 25 -0.33 -132 0 0 16 33 24 13 44 21.0 52 260 -19 16 46 42 16 20 7 16 51 6 16 15 44 -0.33 -131 0 0 16 18 44 13 44 9.5 51 260 -18 16 32 2 16 5 28 16 36 26 16 1 4 -0.33 -130 0 0 16 4 6 13 43 58.1 50 261 -17 16 17 24 15 50 50 16 21 48 15 46 26 -0.33 -129 0 0 15 49 30 13 43 46.9 49 262 -16 16 2 47 15 36 14 16 7 12 15 31 51 -0.33 -128 0 0 15 34 57 13 43 35.8 48 262 -15 15 48 14 15 21 41 15 52 38 15 17 17 -0.33 -127 0 0 15 20 26 13 43 24.8 47 263 -14 15 33 42 15 7 10 15 38 7 15 2 46 -0.33 -126 0 0 15 5 57 13 43 14.0 47 264 -13 15 19 14 14 52 42 15 23 38 14 48 19 -0.33 -125 0 0 14 51 32 13 43 3.3 46 264 -12 15 4 49 14 38 17 15 9 13 14 33 54 -0.33 -124 0 0 14 37 11 13 42 52.7 45 265 -11 14 50 27 14 23 56 14 54 51 14 19 33 -0.33 -123 0 0 14 22 53 13 42 42.4 44 265 -10 14 36 8 14 9 38 14 40 32 14 5 15 -0.33 -122 0 0 14 8 39 13 42 32.1 43 266 -9 14 21 54 13 55 24 14 26 18 13 51 1 -0.33 -121 0 0 13 54 29 13 42 22.0 42 266 -8 14 7 44 13 41 15 14 12 8 13 36 52 -0.33 -120 0 0 13 40 24 13 42 12.1 41 267 -7 13 53 38 13 27 10 13 58 2 13 22 47 -0.33 -119 0 0 13 26 23 13 42 2.4 40 267 -6 13 39 38 13 13 10 13 44 1 13 8 47 -0.33 -118 0 0 13 12 28 13 41 52.8 39 268 -5 13 25 42 12 59 15 13 30 5 12 54 52 -0.33 -117 0 0 12 58 38 13 41 43.4 38 268 -4 13 11 51 12 45 25 13 16 15 12 41 2 -0.33 -116 0 0 12 44 53 13 41 34.2 37 269 -3 12 58 7 12 31 41 13 2 30 12 27 18 -0.33 -115 0 0 12 31 14 13 41 25.1 36 269 -2 12 44 28 12 18 2 12 48 51 12 13 40 -0.33 -114 0 0 12 17 42 13 41 16.3 36 269 -1 12 30 55 12 4 30 12 35 18 12 0 8 -0.33 -113 0 0 12 4 16 13 41 7.6 35 270 0 12 17 28 11 51 4 12 21 51 11 46 42 -0.33 -112 0 0 11 50 56 13 40 59.2 34 270 0 12 4 8 11 37 45 12 8 31 11 33 23 -0.33 -111 0 0 11 37 44 13 40 50.9 33 270 1 11 50 55 11 24 33 11 55 18 11 20 11 -0.33 -110 0 0 11 24 38 13 40 42.8 32 271 2 11 37 50 11 11 28 11 42 12 11 7 6 -0.33 -109 0 0 11 11 40 13 40 35.0 31 271 3 11 24 51 10 58 30 11 29 14 10 54 9 -0.33 -108 0 0 10 58 50 13 40 27.3 30 271 4 11 12 1 10 45 40 11 16 23 10 41 19 -0.33 -107 0 0 10 46 8 13 40 19.9 29 272 5 10 59 18 10 32 59 11 3 40 10 28 37 -0.33 -106 0 0 10 33 34 13 40 12.7 28 272 6 10 46 43 10 20 25 10 51 5 10 16 4 -0.33 -105 0 0 10 21 8 13 40 5.7 27 272 7 10 34 18 10 8 0 10 38 39 10 3 39 -0.33 -104 0 0 10 8 51 13 39 58.9 26 272 8 10 22 0 9 55 43 10 26 22 9 51 22 -0.34 -103 0 0 9 56 43 13 39 52.3 25 273 9 10 9 52 9 43 36 10 14 14 9 39 15 -0.34 -102 0 0 9 44 45 13 39 46.0 24 273 10 9 57 53 9 31 38 10 2 14 9 27 17 -0.34 -101 0 0 9 32 56 13 39 39.9 23 273 11 9 46 3 9 19 49 9 50 25 9 15 28 -0.34 -100 0 0 9 21 16 13 39 34.0 22 273 12 9 34 24 9 8 10 9 38 45 9 3 50 -0.34 - 99 0 0 9 9 47 13 39 28.3 21 274 13 9 22 54 8 56 41 9 27 15 8 52 21 -0.34 - 98 0 0 8 58 27 13 39 22.9 20 274 14 9 11 34 8 45 22 9 15 55 8 41 2 -0.34 - 97 0 0 8 47 19 13 39 17.8 19 274 15 9 0 25 8 34 14 9 4 45 8 29 54 -0.34 - 96 0 0 8 36 20 13 39 12.9 18 274 16 8 49 26 8 23 16 8 53 47 8 18 56 -0.34 - 95 0 0 8 25 33 13 39 8.2 17 274 17 8 38 39 8 12 29 8 42 59 8 8 9 -0.34 - 94 0 0 8 14 57 13 39 3.8 16 274 18 8 28 2 8 1 53 8 32 22 7 57 34 -0.34 - 93 0 0 8 4 32 13 38 59.6 15 275 19 8 17 37 7 51 29 8 21 57 7 47 9 -0.34 - 92 0 0 7 54 19 13 38 55.7 14 275 20 8 7 23 7 41 16 8 11 43 7 36 57 -0.34 - 91 0 0 7 44 18 13 38 52.0 13 275 20 7 57 21 7 31 15 8 1 41 7 26 56 -0.34 - 90 0 0 7 34 28 13 38 48.6 12 275 21 7 47 31 7 21 26 7 51 51 7 17 7 -0.35 - 89 0 0 7 24 51 13 38 45.4 11 275 22 7 37 54 7 11 49 7 42 13 7 7 30 -0.35 - 88 0 0 7 15 26 13 38 42.5 10 275 23 7 28 29 7 2 25 7 32 48 6 58 6 -0.35 - 87 0 0 7 6 14 13 38 39.9 9 276 24 7 19 16 6 53 13 7 23 36 6 48 54 -0.35 - 86 0 0 6 57 15 13 38 37.5 8 276 25 7 10 16 6 44 14 7 14 36 6 39 55 -0.36 - 85 0 0 6 48 28 13 38 35.4 7 276 26 7 1 30 6 35 28 7 5 49 6 31 9 -0.36 - 84 0 0 6 39 55 13 38 33.5 6 276 27 6 52 56 6 26 55 6 57 15 6 22 37 -0.36 - 83 0 0 6 31 36 13 38 31.9 5 276 28 6 44 36 6 18 36 6 48 55 6 14 18 -0.37 - 82 0 0 6 23 30 13 38 30.6 4 276 29 6 36 30 6 10 30 6 40 49 6 6 12 -0.38 - 81 0 0 6 15 37 13 38 29.6 3 276 30 6 28 37 6 2 38 6 32 56 5 58 20 -0.39 - 80 0 0 6 7 59 13 38 28.8 2 276 31 6 20 59 5 55 0 6 25 17 5 50 43 -0.42 - 79 0 0 6 0 35 13 38 28.3 1 276 32 6 13 35 5 47 37 6 17 53 5 43 19 -0.49 - 78 0 0 5 53 25 13 38 28.0 0 277 33 6 6 25 5 40 27 6 10 43 5 36 10 -0.91 Uncertainty in time = +/- 3 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: TYC 0177-02819-1 * constellation : Canis Minor * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 24 16.9120 DE: +06 36 39.882 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 24 16.9121 DE: +06 36 39.882 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1191) Alfaterna asteroid class: approx. diameter [km]: 45 approx. diameter ["]: 0.030 distance from Earth [AU]: 2.07700 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#61 date of fit: 2023 Oct 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): 0.013", 0.001", 81.156° remarks: * orbital elements for (1191)Alfaterna : Mean anomaly = 269.8769373937 deg Arg. of pericenter = 59.0939728847 deg Long. of node = 134.5582049860 deg Inclination = 18.4599758634 deg Eccentricity = 0.0481662892 Semimajor axis = 2.8915550443 AU Perihelion dist = 2.7522795677 AU Mag: H = 10.82, G = 0.15 Epoch of elements : MJD 60284.57750000 TDT (2023 Dec 06.5775) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#612023Oct09,5.97,2023,12,6,13.863419,0.071096,0.312220,-4.155776,0.946597,-0.003462,0.001774,0.000001,0.000000 -171.6503,6.5654,-30.22,-22.50,False TYC 0177-02819-1,7.40469778,6.6110785,0.00,11.66,0.00,0.0,0,,7.42628592,6.5654364,3.85,0.00,0,0,0 1191,Alfaterna,15.48,45.100,2.0770,0,0,-1.181,4.01,,2.4,0 0,269.7612,2023,12,6,59.0940,134.5582,18.4600,0.04817,2.89156,2.75228,10.83,5.0,0.15 1.166,0.0133,0.0006,81,0.0133,Known errors,-1.00,0,-1,-1 20231206_2819-1,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org