IOTA/IOTA-ES occultation update for (7746) 1987 RC1 / UCAC4 574-030256 event on 2024 Jan 07, 07:52 UT Visible from Summary ------- On 2024 Jan 07 UT, the 18.834 km diameter asteroid (7746) 1987 RC1 will occult a 11.7 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.84 mag to 17.56 mag (the magnitude of the asteroid) for at most 1.200 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 Jan 07, 07:45 - 2024 Jan 07, 07:59 * geocentric midpoint of event [JD]: 2460316.82824875 * magnitude of target star: 11.72 * magnitude drop [mag]: 5.84 * estimated maximum duration [s]: 1.200 * Moon: 20 % sunlit, 134° distance * Sun: 172° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 19 * 1 sigma uncertainty interval [path widths]: +/- 0.46 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.004", 91°) * approx speed of asteroid's shadow [km/s]: 15.7248 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 574-030256 by 7746 1987 RC1 on 2024 Jan 7 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 140 0 0 9 5 23 7 59 24.3 1 65 7 9 11 2 8 59 44 9 16 15 8 54 31 .... 141 0 0 9 33 2 7 59 24.1 2 65 6 9 38 41 9 27 23 9 43 54 9 22 10 -0.14 142 0 0 10 0 34 7 59 23.7 3 65 5 10 6 13 9 54 55 10 11 26 9 49 42 -0.12 143 0 0 10 27 57 7 59 23.2 4 66 4 10 33 36 10 22 19 10 38 49 10 17 6 -0.11 144 0 0 10 55 12 7 59 22.6 5 66 3 11 0 50 10 49 34 11 6 3 10 44 21 -0.11 145 0 0 11 22 17 7 59 21.9 6 66 2 11 27 55 11 16 39 11 33 7 11 11 27 -0.10 146 0 0 11 49 12 7 59 21.0 7 66 1 11 54 50 11 43 34 12 0 2 11 38 23 -0.10 147 0 0 12 15 56 7 59 19.9 8 66 0 12 21 34 12 10 19 12 26 45 12 5 7 -0.10 148 0 0 12 42 29 7 59 18.7 9 67 -1 12 48 6 12 36 52 12 53 17 12 31 41 -0.10 149 0 0 13 8 50 7 59 17.4 11 67 -3 13 14 27 13 3 13 13 19 38 12 58 2 -0.10 150 0 0 13 34 58 7 59 16.0 12 67 -4 13 40 35 13 29 22 13 45 45 13 24 11 -0.10 151 0 0 14 0 54 7 59 14.4 13 67 -5 14 6 30 13 55 17 14 11 40 13 50 7 -0.10 152 0 0 14 26 35 7 59 12.7 14 68 -6 14 32 11 14 21 0 14 37 21 14 15 50 -0.09 153 0 0 14 52 3 7 59 10.8 15 68 -7 14 57 39 14 46 28 15 2 48 14 41 19 -0.09 154 0 0 15 17 16 7 59 8.9 16 68 -8 15 22 51 15 11 42 15 28 0 15 6 33 -0.09 155 0 0 15 42 15 7 59 6.8 17 68 -9 15 47 49 15 36 40 15 52 58 15 31 32 -0.09 156 0 0 16 6 57 7 59 4.6 18 69 -10 16 12 31 16 1 23 16 17 40 15 56 15 -0.09 157 0 0 16 31 24 7 59 2.3 19 69 -11 16 36 58 16 25 50 16 42 5 16 20 43 -0.09 158 0 0 16 55 34 7 58 59.8 20 69 -12 17 1 8 16 50 1 17 6 15 16 44 54 -0.09 159 0 0 17 19 28 7 58 57.3 21 70 -13 17 25 1 17 13 55 17 30 8 17 8 49 -0.09 160 0 0 17 43 4 7 58 54.6 22 70 -14 17 48 37 17 37 32 17 53 43 17 32 26 -0.09 161 0 0 18 6 23 7 58 51.8 23 70 -15 18 11 55 18 0 52 18 17 1 17 55 46 -0.09 162 0 0 18 29 24 7 58 49.0 24 71 -16 18 34 56 18 23 53 18 40 1 18 18 48 -0.09 163 0 0 18 52 7 7 58 46.0 25 71 -17 18 57 38 18 46 37 19 2 43 18 41 32 -0.09 164 0 0 19 14 32 7 58 42.9 26 71 -18 19 20 2 19 9 2 19 25 6 19 3 57 -0.09 165 0 0 19 36 37 7 58 39.7 27 72 -19 19 42 7 19 31 7 19 47 11 19 26 3 -0.09 166 0 0 19 58 23 7 58 36.4 28 72 -20 20 3 53 19 52 54 20 8 56 19 47 51 -0.09 167 0 0 20 19 50 7 58 33.1 29 72 -21 20 25 19 20 14 22 20 30 22 20 9 19 -0.09 168 0 0 20 40 58 7 58 29.6 30 73 -22 20 46 26 20 35 30 20 51 28 20 30 27 -0.09 169 0 0 21 1 45 7 58 26.1 31 73 -23 21 7 13 20 56 18 21 12 15 20 51 16 -0.09 170 0 0 21 22 12 7 58 22.4 32 73 -24 21 27 39 21 16 45 21 32 41 21 11 44 -0.09 171 0 0 21 42 19 7 58 18.7 33 74 -25 21 47 46 21 36 53 21 52 47 21 31 52 -0.09 172 0 0 22 2 6 7 58 14.9 34 74 -26 22 7 32 21 56 40 22 12 32 21 51 39 -0.09 173 0 0 22 21 31 7 58 11.0 35 75 -27 22 26 57 22 16 6 22 31 57 22 11 6 -0.09 174 0 0 22 40 36 7 58 7.0 36 75 -28 22 46 1 22 35 11 22 51 1 22 30 12 -0.09 175 0 0 22 59 20 7 58 3.0 37 76 -29 23 4 44 22 53 56 23 9 43 22 48 57 -0.09 176 0 0 23 17 42 7 57 58.9 38 76 -30 23 23 6 23 12 19 23 28 5 23 7 20 -0.09 177 0 0 23 35 44 7 57 54.7 39 76 -31 23 41 7 23 30 20 23 46 5 23 25 22 -0.09 178 0 0 23 53 23 7 57 50.5 40 77 -32 23 58 46 23 48 1 24 3 43 23 43 3 -0.09 179 0 0 24 10 41 7 57 46.1 41 77 -33 24 16 3 24 5 19 24 21 0 24 0 22 -0.09 -180 0 0 24 27 38 7 57 41.8 41 78 -33 24 32 59 24 22 16 24 37 56 24 17 20 -0.09 -179 0 0 24 44 12 7 57 37.3 42 78 -34 24 49 33 24 38 52 24 54 29 24 33 56 -0.09 -178 0 0 25 0 25 7 57 32.8 43 79 -35 25 5 46 24 55 5 25 10 41 24 50 9 -0.09 -177 0 0 25 16 16 7 57 28.2 44 79 -36 25 21 36 25 10 56 25 26 31 25 6 1 -0.10 -176 0 0 25 31 45 7 57 23.6 45 80 -37 25 37 4 25 26 26 25 41 59 25 21 31 -0.10 -175 0 0 25 46 52 7 57 18.9 46 80 -38 25 52 11 25 41 33 25 57 5 25 36 39 -0.10 -174 0 0 26 1 36 7 57 14.2 47 81 -39 26 6 55 25 56 18 26 11 48 25 51 24 -0.10 -173 0 0 26 15 59 7 57 9.4 48 81 -40 26 21 17 26 10 41 26 26 10 26 5 48 -0.10 -172 0 0 26 29 59 7 57 4.6 49 82 -41 26 35 16 26 24 42 26 40 9 26 19 49 -0.10 -171 0 0 26 43 37 7 56 59.7 50 82 -42 26 48 54 26 38 20 26 53 46 26 33 28 -0.10 -170 0 0 26 56 53 7 56 54.8 51 83 -43 27 2 9 26 51 36 27 7 1 26 46 45 -0.10 -169 0 0 27 9 46 7 56 49.8 51 84 -43 27 15 2 27 4 30 27 19 54 26 59 39 -0.10 -168 0 0 27 22 17 7 56 44.8 52 84 -44 27 27 33 27 17 2 27 32 24 27 12 11 -0.10 -167 0 0 27 34 26 7 56 39.7 53 85 -45 27 39 41 27 29 11 27 44 32 27 24 21 -0.10 -166 0 0 27 46 13 7 56 34.6 54 85 -46 27 51 27 27 40 58 27 56 18 27 36 8 -0.10 -165 0 0 27 57 37 7 56 29.5 55 86 -47 28 2 51 27 52 23 28 7 41 27 47 33 -0.10 -164 0 0 28 8 39 7 56 24.3 56 87 -48 28 13 53 28 3 25 28 18 42 27 58 36 -0.10 -163 0 0 28 19 18 7 56 19.1 57 87 -49 28 24 32 28 14 5 28 29 21 28 9 16 -0.10 -162 0 0 28 29 36 7 56 13.8 58 88 -50 28 34 49 28 24 23 28 39 37 28 19 34 -0.10 -161 0 0 28 39 30 7 56 8.6 58 89 -50 28 44 43 28 34 18 28 49 31 28 29 30 -0.10 -160 0 0 28 49 3 7 56 3.2 59 89 -51 28 54 15 28 43 51 28 59 3 28 39 3 -0.10 -159 0 0 28 58 13 7 55 57.9 60 90 -52 29 3 25 28 53 2 29 8 13 28 48 14 -0.10 -158 0 0 29 7 1 7 55 52.5 61 91 -53 29 12 13 29 1 50 29 17 0 28 57 3 -0.10 -157 0 0 29 15 27 7 55 47.1 62 92 -54 29 20 38 29 10 16 29 25 26 29 5 29 -0.10 -156 0 0 29 23 31 7 55 41.7 63 92 -55 29 28 42 29 18 20 29 33 28 29 13 33 -0.10 -155 0 0 29 31 12 7 55 36.2 64 93 -56 29 36 23 29 26 2 29 41 9 29 21 15 -0.10 -154 0 0 29 38 31 7 55 30.7 64 94 -56 29 43 42 29 33 21 29 48 28 29 28 35 -0.10 -153 0 0 29 45 28 7 55 25.2 65 95 -57 29 50 38 29 40 18 29 55 24 29 35 33 -0.10 -152 0 0 29 52 3 7 55 19.6 66 96 -58 29 57 13 29 46 54 30 1 59 29 42 8 -0.10 -151 0 0 29 58 16 7 55 14.0 67 97 -59 30 3 25 29 53 6 30 8 11 29 48 21 -0.10 -150 0 0 30 4 6 7 55 8.5 68 98 -60 30 9 16 29 58 57 30 14 1 29 54 12 -0.10 -149 0 0 30 9 35 7 55 2.8 69 99 -61 30 14 44 30 4 26 30 19 29 29 59 41 -0.10 -148 0 0 30 14 41 7 54 57.2 69 100 -61 30 19 50 30 9 33 30 24 35 30 4 48 -0.10 -147 0 0 30 19 26 7 54 51.5 70 101 -62 30 24 34 30 14 17 30 29 19 30 9 33 -0.10 -146 0 0 30 23 48 7 54 45.9 71 102 -63 30 28 56 30 18 40 30 33 41 30 13 55 -0.10 -145 0 0 30 27 48 7 54 40.2 72 103 -64 30 32 57 30 22 40 30 37 41 30 17 56 -0.10 -144 0 0 30 31 27 7 54 34.4 73 105 -65 30 36 35 30 26 19 30 41 19 30 21 35 -0.10 -143 0 0 30 34 43 7 54 28.7 73 106 -65 30 39 51 30 29 35 30 44 35 30 24 51 -0.10 -142 0 0 30 37 37 7 54 22.9 74 108 -66 30 42 45 30 32 30 30 47 29 30 27 46 -0.10 -141 0 0 30 40 10 7 54 17.2 75 109 -67 30 45 18 30 35 2 30 50 1 30 30 18 -0.10 -140 0 0 30 42 20 7 54 11.4 76 111 -68 30 47 28 30 37 13 30 52 12 30 32 29 -0.10 -139 0 0 30 44 9 7 54 5.6 76 113 -69 30 49 16 30 39 1 30 54 0 30 34 18 -0.10 -138 0 0 30 45 36 7 53 59.8 77 115 -69 30 50 43 30 40 28 30 55 27 30 35 45 -0.10 -137 0 0 30 46 40 7 53 53.9 78 117 -70 30 51 48 30 41 33 30 56 31 30 36 49 -0.10 -136 0 0 30 47 23 7 53 48.1 79 120 -71 30 52 31 30 42 16 30 57 14 30 37 32 -0.10 -135 0 0 30 47 44 7 53 42.2 79 122 -72 30 52 52 30 42 37 30 57 35 30 37 53 -0.10 -134 0 0 30 47 43 7 53 36.3 80 126 -73 30 52 51 30 42 36 30 57 34 30 37 52 -0.10 -133 0 0 30 47 20 7 53 30.4 81 129 -73 30 52 28 30 42 13 30 57 12 30 37 30 -0.10 -132 0 0 30 46 36 7 53 24.5 81 133 -74 30 51 43 30 41 28 30 56 27 30 36 45 -0.10 -131 0 0 30 45 29 7 53 18.6 82 138 -75 30 50 37 30 40 22 30 55 20 30 35 38 -0.10 -130 0 0 30 44 1 7 53 12.7 82 143 -75 30 49 8 30 38 53 30 53 52 30 34 10 -0.10 -129 0 0 30 42 10 7 53 6.8 83 149 -76 30 47 18 30 37 3 30 52 2 30 32 19 -0.11 -128 0 0 30 39 58 7 53 0.9 83 156 -77 30 45 6 30 34 51 30 49 50 30 30 7 -0.11 -127 0 0 30 37 24 7 52 54.9 84 163 -78 30 42 32 30 32 16 30 47 16 30 27 32 -0.11 -126 0 0 30 34 28 7 52 49.0 84 172 -78 30 39 36 30 29 20 30 44 20 30 24 36 -0.11 -125 0 0 30 31 10 7 52 43.0 84 181 -79 30 36 18 30 26 2 30 41 3 30 21 18 -0.11 -124 0 0 30 27 30 7 52 37.0 84 190 -79 30 32 39 30 22 22 30 37 23 30 17 38 -0.11 -123 0 0 30 23 29 7 52 31.0 84 198 -80 30 28 37 30 18 20 30 33 22 30 13 36 -0.11 -122 0 0 30 19 5 7 52 25.1 83 207 -81 30 24 14 30 13 56 30 28 58 30 9 12 -0.11 -121 0 0 30 14 19 7 52 19.1 83 214 -81 30 19 28 30 9 11 30 24 13 30 4 26 -0.11 -120 0 0 30 9 12 7 52 13.1 83 221 -81 30 14 21 30 4 3 30 19 6 29 59 18 -0.11 -119 0 0 30 3 42 7 52 7.1 82 227 -82 30 8 52 29 58 33 30 13 37 29 53 48 -0.10 -118 0 0 29 57 51 7 52 1.1 82 232 -82 30 3 0 29 52 41 30 7 46 29 47 56 -0.10 -117 0 0 29 51 37 7 51 55.1 81 236 -82 29 56 47 29 46 28 30 1 33 29 41 42 -0.10 -116 0 0 29 45 2 7 51 49.1 80 240 -82 29 50 12 29 39 52 29 54 58 29 35 6 -0.10 -115 0 0 29 38 4 7 51 43.1 80 244 -82 29 43 14 29 32 54 29 48 1 29 28 8 -0.10 -114 0 0 29 30 45 7 51 37.1 79 247 -82 29 35 55 29 25 34 29 40 42 29 20 48 -0.10 -113 0 0 29 23 3 7 51 31.1 78 249 -82 29 28 14 29 17 52 29 33 1 29 13 5 -0.10 -112 0 0 29 14 59 7 51 25.1 78 252 -82 29 20 10 29 9 48 29 24 58 29 5 1 -0.10 -111 0 0 29 6 33 7 51 19.1 77 254 -82 29 11 45 29 1 22 29 16 32 28 56 35 -0.10 -110 0 0 28 57 46 7 51 13.1 76 256 -81 29 2 57 28 52 34 29 7 45 28 47 46 -0.10 -109 0 0 28 48 36 7 51 7.1 75 258 -81 28 53 48 28 43 23 28 58 36 28 38 35 -0.10 -108 0 0 28 39 4 7 51 1.2 74 259 -80 28 44 16 28 33 51 28 49 5 28 29 3 -0.10 -107 0 0 28 29 9 7 50 55.2 74 261 -80 28 34 22 28 23 56 28 39 11 28 19 8 -0.10 -106 0 0 28 18 53 7 50 49.2 73 262 -79 28 24 7 28 13 40 28 28 56 28 8 51 -0.10 -105 0 0 28 8 15 7 50 43.3 72 264 -78 28 13 29 28 3 1 28 18 18 27 58 12 -0.10 -104 0 0 27 57 14 7 50 37.3 71 265 -78 28 2 29 27 52 0 28 7 18 27 47 10 -0.10 -103 0 0 27 45 52 7 50 31.4 70 266 -77 27 51 6 27 40 37 27 55 57 27 35 47 -0.10 -102 0 0 27 34 7 7 50 25.4 70 267 -76 27 39 22 27 28 52 27 44 13 27 24 2 -0.10 -101 0 0 27 22 0 7 50 19.5 69 268 -75 27 27 16 27 16 45 27 32 7 27 11 54 -0.10 -100 0 0 27 9 32 7 50 13.6 68 269 -75 27 14 47 27 4 16 27 19 39 26 59 24 -0.10 - 99 0 0 26 56 41 7 50 7.7 67 270 -74 27 1 57 26 51 24 27 6 49 26 46 33 -0.10 - 98 0 0 26 43 28 7 50 1.9 66 271 -73 26 48 45 26 38 11 26 53 37 26 33 19 -0.10 - 97 0 0 26 29 53 7 49 56.0 65 272 -72 26 35 10 26 24 36 26 40 3 26 19 43 -0.10 - 96 0 0 26 15 56 7 49 50.2 64 273 -71 26 21 14 26 10 38 26 26 7 26 5 45 -0.10 - 95 0 0 26 1 37 7 49 44.4 63 274 -71 26 6 56 25 56 19 26 11 49 25 51 26 -0.10 - 94 0 0 25 46 57 7 49 38.6 63 275 -70 25 52 16 25 41 38 25 57 10 25 36 44 -0.10 - 93 0 0 25 31 54 7 49 32.9 62 275 -69 25 37 14 25 26 35 25 42 8 25 21 41 -0.10 - 92 0 0 25 16 30 7 49 27.1 61 276 -68 25 21 50 25 11 10 25 26 45 25 6 15 -0.10 - 91 0 0 25 0 44 7 49 21.4 60 277 -67 25 6 5 24 55 24 25 11 0 24 50 29 -0.10 - 90 0 0 24 44 37 7 49 15.7 59 277 -66 24 49 58 24 39 16 24 54 54 24 34 20 -0.10 - 89 0 0 24 28 8 7 49 10.1 58 278 -65 24 33 29 24 22 47 24 38 26 24 17 50 -0.10 - 88 0 0 24 11 17 7 49 4.5 57 279 -64 24 16 39 24 5 56 24 21 36 24 0 59 -0.10 - 87 0 0 23 54 6 7 48 58.9 56 279 -64 23 59 28 23 48 43 24 4 26 23 43 46 -0.10 - 86 0 0 23 36 33 7 48 53.4 55 280 -63 23 41 56 23 31 10 23 46 54 23 26 12 -0.10 - 85 0 0 23 18 39 7 48 47.9 54 280 -62 23 24 2 23 13 15 23 29 1 23 8 17 -0.10 - 84 0 0 23 0 23 7 48 42.4 53 281 -61 23 5 47 22 54 59 23 10 46 22 50 1 -0.10 - 83 0 0 22 41 47 7 48 37.0 52 282 -60 22 47 12 22 36 23 22 52 12 22 31 24 -0.10 - 82 0 0 22 22 51 7 48 31.7 51 282 -59 22 28 16 22 17 26 22 33 16 22 12 26 -0.10 - 81 0 0 22 3 34 7 48 26.3 51 283 -58 22 8 59 21 58 8 22 14 0 21 53 8 -0.10 - 80 0 0 21 43 56 7 48 21.1 50 283 -57 21 49 23 21 38 30 21 54 23 21 33 29 -0.10 - 79 0 0 21 23 59 7 48 15.9 49 284 -56 21 29 25 21 18 32 21 34 27 21 13 31 -0.10 - 78 0 0 21 3 41 7 48 10.7 48 284 -55 21 9 8 20 58 14 21 14 10 20 53 12 -0.10 - 77 0 0 20 43 4 7 48 5.6 47 285 -54 20 48 32 20 37 36 20 53 34 20 32 34 -0.10 - 76 0 0 20 22 7 7 48 0.6 46 285 -53 20 27 35 20 16 39 20 32 38 20 11 36 -0.10 - 75 0 0 20 0 51 7 47 55.6 45 285 -52 20 6 20 19 55 22 20 11 23 19 50 19 -0.10 - 74 0 0 19 39 16 7 47 50.7 44 286 -51 19 44 45 19 33 46 19 49 49 19 28 43 -0.10 - 73 0 0 19 17 22 7 47 45.8 43 286 -50 19 22 52 19 11 52 19 27 56 19 6 48 -0.10 - 72 0 0 18 55 10 7 47 41.1 42 287 -49 19 0 40 18 49 39 19 5 45 18 44 35 -0.10 - 71 0 0 18 32 39 7 47 36.4 41 287 -48 18 38 10 18 27 8 18 43 15 18 22 3 -0.10 - 70 0 0 18 9 51 7 47 31.7 40 287 -47 18 15 22 18 4 20 18 20 28 17 59 14 -0.10 - 69 0 0 17 46 45 7 47 27.2 39 288 -46 17 52 17 17 41 13 17 57 23 17 36 7 -0.10 - 68 0 0 17 23 22 7 47 22.7 38 288 -45 17 28 54 17 17 50 17 34 1 17 12 43 -0.10 - 67 0 0 16 59 42 7 47 18.3 37 289 -44 17 5 15 16 54 10 17 10 22 16 49 3 -0.10 - 66 0 0 16 35 46 7 47 14.0 36 289 -43 16 41 19 16 30 13 16 46 27 16 25 6 -0.10 - 65 0 0 16 11 34 7 47 9.8 35 289 -42 16 17 7 16 6 0 16 22 15 16 0 52 -0.10 - 64 0 0 15 47 6 7 47 5.7 34 289 -41 15 52 40 15 41 32 15 57 48 15 36 24 -0.10 - 63 0 0 15 22 23 7 47 1.7 33 290 -40 15 27 57 15 16 48 15 33 6 15 11 40 -0.10 - 62 0 0 14 57 25 7 46 57.8 32 290 -39 15 3 0 14 51 50 15 8 9 14 46 41 -0.10 - 61 0 0 14 32 13 7 46 53.9 31 290 -38 14 37 48 14 26 38 14 42 58 14 21 29 -0.10 - 60 0 0 14 6 47 7 46 50.2 30 291 -37 14 12 23 14 1 11 14 17 33 13 56 2 -0.10 - 59 0 0 13 41 8 7 46 46.6 28 291 -36 13 46 44 13 35 32 13 51 54 13 30 22 -0.10 - 58 0 0 13 15 16 7 46 43.1 27 291 -35 13 20 52 13 9 40 13 26 3 13 4 29 -0.10 - 57 0 0 12 49 12 7 46 39.7 26 291 -34 12 54 48 12 43 35 12 59 59 12 38 25 -0.10 - 56 0 0 12 22 56 7 46 36.4 25 292 -33 12 28 33 12 17 19 12 33 44 12 12 8 -0.10 - 55 0 0 11 56 29 7 46 33.2 24 292 -32 12 2 6 11 50 51 12 7 17 11 45 40 -0.10 - 54 0 0 11 29 51 7 46 30.2 23 292 -31 11 35 28 11 24 13 11 40 40 11 19 2 -0.10 - 53 0 0 11 3 3 7 46 27.3 22 292 -30 11 8 41 10 57 25 11 13 53 10 52 14 -0.10 - 52 0 0 10 36 6 7 46 24.5 21 293 -29 10 41 44 10 30 28 10 46 56 10 25 16 -0.10 - 51 0 0 10 9 0 7 46 21.8 20 293 -28 10 14 38 10 3 21 10 19 50 9 58 9 -0.10 - 50 0 0 9 41 46 7 46 19.2 19 293 -27 9 47 24 9 36 7 9 52 36 9 30 55 -0.10 - 49 0 0 9 14 24 7 46 16.8 18 293 -26 9 20 2 9 8 45 9 25 15 9 3 33 -0.10 - 48 0 0 8 46 55 7 46 14.5 17 293 -24 8 52 34 8 41 16 8 57 47 8 36 4 -0.10 - 47 0 0 8 19 20 7 46 12.4 16 293 -23 8 24 59 8 13 41 8 30 12 8 8 29 -0.10 - 46 0 0 7 51 40 7 46 10.3 15 294 -22 7 57 19 7 46 1 8 2 32 7 40 48 -0.10 - 45 0 0 7 23 55 7 46 8.5 14 294 -21 7 29 34 7 18 15 7 34 47 7 13 2 -0.10 - 44 0 0 6 56 5 7 46 6.7 12 294 -20 7 1 44 6 50 26 7 6 57 6 45 13 -0.10 - 43 0 0 6 28 12 7 46 5.1 11 294 -19 6 33 51 6 22 33 6 39 5 6 17 20 -0.10 - 42 0 0 6 0 16 7 46 3.6 10 294 -18 6 5 56 5 54 37 6 11 9 5 49 24 -0.11 - 41 0 0 5 32 19 7 46 2.3 9 294 -17 5 37 58 5 26 39 5 43 11 5 21 26 -0.11 - 40 0 0 5 4 19 7 46 1.2 8 294 -16 5 9 59 4 58 40 5 15 12 4 53 27 -0.11 - 39 0 0 4 36 20 7 46 0.1 7 294 -15 4 41 59 4 30 40 4 47 12 4 25 27 -0.11 - 38 0 0 4 8 20 7 45 59.3 6 294 -14 4 13 59 4 2 41 4 19 12 3 57 28 -0.12 - 37 0 0 3 40 21 7 45 58.5 5 294 -12 3 46 1 3 34 42 3 51 14 3 29 29 -0.13 - 36 0 0 3 12 24 7 45 57.9 4 295 -11 3 18 3 3 6 45 3 23 16 3 1 32 -0.14 - 35 0 0 2 44 29 7 45 57.5 3 295 -10 2 50 8 2 38 50 2 55 21 2 33 37 -0.16 - 34 0 0 2 16 37 7 45 57.2 2 295 -9 2 22 16 2 10 58 2 27 29 2 5 46 -0.22 - 33 0 0 1 48 49 7 45 57.1 0 295 -8 1 54 28 1 43 10 1 59 40 1 37 58 -0.56 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: UCAC4 574-030256 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 36 29.8423 DE: +24 40 56.138 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 36 29.8423 DE: +24 40 56.138 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.7 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (7746) 1987 RC1 asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.010 distance from Earth [AU]: 2.69470 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#48 date of fit: 2023 Apr 25 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): 0.018", 0.004", 90.602° remarks: * orbital elements for (7746)1987 RC1 : Mean anomaly = 167.3321810710 deg Arg. of pericenter = 253.9356618832 deg Long. of node = 35.8059634126 deg Inclination = 1.2223013678 deg Eccentricity = 0.1579815726 Semimajor axis = 3.1780648685 AU Perihelion dist = 2.6759891829 AU Mag: H = 12.34, G = 0.15 Epoch of elements : MJD 60316.32824937 TDT (2024 Jan 07.3282) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#482023Apr25,1.20,2024,1,7,7.877970,0.006718,0.098656,-8.855155,0.600832,0.000801,-0.000211,0.000002,0.000000 -125.0608,24.6626,63.33,-22.42,False UCAC4 574-030256,6.60828954,24.6822606,11.85,11.72,11.65,0.0,0,,6.63316260,24.6625808,5.85,5.47,0,0,0 7746,1987 RC1,17.56,18.834,2.6947,0,0,-2.119,1.96,,1.8,0 0,167.2751,2024,1,7,253.9357,35.8060,1.2223,0.15798,3.17806,2.67599,12.34,5.0,0.15 1.461,0.0183,0.0043,91,0.0045,Known errors,0.96,0,-1,-1 20240107_030256,60137.00 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org