IOTA/IOTA-ES occultation update for (3666) Holman / TYC 6320-01457-1 event on 2024 Jun 08, 20:21 UT Visible from Summary ------- On 2024 Jun 08 UT, the 20.777 km diameter asteroid (3666) Holman will occult a 11.0 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.51 mag to 17.46 mag (the magnitude of the asteroid) for at most 2.640 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: 2024 Jun 08, 20:08 - 2024 Jun 08, 20:35 * geocentric midpoint of event [JD]: 2460470.34853042 * magnitude of target star: 10.95 * magnitude drop [mag]: 6.51 * estimated maximum duration [s]: 2.640 * Moon: 6 % sunlit, 170° distance * Sun: 143° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 0.32 * 1 sigma uncertainty interval [seconds]: +/- 4.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.021, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.003", 83°) * approx speed of asteroid's shadow [km/s]: 7.8611 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6320-01457-1 by 3666 Holman on 2024 Jun 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 2 0 0 3 16 58 20 34 48.6 0 110 -35 3 23 17 3 10 39 3 27 22 3 6 34 .... 3 0 0 2 54 58 20 34 48.4 1 110 -36 3 1 17 2 48 40 3 5 21 2 44 36 -0.09 4 0 0 2 33 19 20 34 47.9 2 110 -38 2 39 37 2 27 2 2 43 41 2 22 58 -0.20 5 0 0 2 12 1 20 34 47.2 3 110 -39 2 18 18 2 5 45 2 22 22 2 1 41 -0.24 6 0 0 1 51 5 20 34 46.1 4 110 -40 1 57 21 1 44 49 2 1 24 1 40 46 -0.26 7 0 0 1 30 30 20 34 44.8 5 110 -41 1 36 46 1 24 15 1 40 48 1 20 13 -0.27 8 0 0 1 10 17 20 34 43.2 7 110 -42 1 16 32 1 4 3 1 20 34 1 0 1 -0.28 9 0 0 0 50 27 20 34 41.3 8 111 -43 0 56 41 0 44 13 1 0 43 0 40 12 -0.29 10 0 0 0 30 59 20 34 39.1 9 111 -44 0 37 12 0 24 46 0 41 13 0 20 45 -0.29 11 0 0 0 11 53 20 34 36.6 10 111 -45 0 18 6 0 5 41 0 22 7 0 1 41 -0.30 12 0 0 - 0 6 49 20 34 33.9 11 111 -46 - 0 0 37 - 0 13 1 0 3 23 - 0 17 1 -0.30 13 0 0 - 0 25 9 20 34 31.0 12 111 -47 - 0 18 57 - 0 31 20 - 0 14 58 - 0 35 19 -0.30 14 0 0 - 0 43 5 20 34 27.7 13 111 -48 - 0 36 54 - 0 49 15 - 0 32 55 - 0 53 14 -0.30 15 0 0 - 1 0 38 20 34 24.3 14 111 -49 - 0 54 28 - 1 6 47 - 0 50 29 - 1 10 46 -0.30 16 0 0 - 1 17 47 20 34 20.5 15 111 -50 - 1 11 38 - 1 23 56 - 1 7 39 - 1 27 54 -0.30 17 0 0 - 1 34 32 20 34 16.5 16 111 -51 - 1 28 24 - 1 40 40 - 1 24 26 - 1 44 38 -0.31 18 0 0 - 1 50 54 20 34 12.3 17 111 -51 - 1 44 46 - 1 57 1 - 1 40 48 - 2 0 58 -0.31 19 0 0 - 2 6 51 20 34 7.8 18 111 -52 - 2 0 44 - 2 12 58 - 1 56 47 - 2 16 55 -0.31 20 0 0 - 2 22 25 20 34 3.1 19 111 -53 - 2 16 18 - 2 28 31 - 2 12 21 - 2 32 27 -0.31 21 0 0 - 2 37 34 20 33 58.1 20 111 -54 - 2 31 28 - 2 43 39 - 2 27 31 - 2 47 35 -0.31 22 0 0 - 2 52 19 20 33 53.0 21 111 -55 - 2 46 13 - 2 58 24 - 2 42 17 - 3 2 19 -0.31 23 0 0 - 3 6 39 20 33 47.5 22 111 -56 - 3 0 34 - 3 12 43 - 2 56 39 - 3 16 39 -0.31 24 0 0 - 3 20 35 20 33 41.9 23 111 -57 - 3 14 31 - 3 26 39 - 3 10 36 - 3 30 34 -0.31 25 0 0 - 3 34 6 20 33 36.0 24 111 -58 - 3 28 3 - 3 40 10 - 3 24 8 - 3 44 4 -0.31 26 0 0 - 3 47 13 20 33 30.0 25 111 -59 - 3 41 10 - 3 53 16 - 3 37 16 - 3 57 10 -0.31 27 0 0 - 3 59 55 20 33 23.7 26 111 -60 - 3 53 53 - 4 5 58 - 3 49 59 - 4 9 51 -0.31 28 0 0 - 4 12 13 20 33 17.2 27 111 -61 - 4 6 11 - 4 18 15 - 4 2 17 - 4 22 8 -0.31 29 0 0 - 4 24 6 20 33 10.5 28 111 -61 - 4 18 4 - 4 30 7 - 4 14 11 - 4 34 0 -0.31 30 0 0 - 4 35 34 20 33 3.6 29 111 -62 - 4 29 33 - 4 41 34 - 4 25 40 - 4 45 27 -0.31 31 0 0 - 4 46 37 20 32 56.4 30 111 -63 - 4 40 36 - 4 52 37 - 4 36 44 - 4 56 29 -0.31 32 0 0 - 4 57 15 20 32 49.1 31 111 -64 - 4 51 15 - 5 3 15 - 4 47 23 - 5 7 7 -0.31 33 0 0 - 5 7 28 20 32 41.6 32 111 -65 - 5 1 29 - 5 13 28 - 4 57 37 - 5 17 20 -0.31 34 0 0 - 5 17 17 20 32 33.9 33 111 -65 - 5 11 18 - 5 23 16 - 5 7 26 - 5 27 7 -0.31 35 0 0 - 5 26 41 20 32 26.1 34 111 -66 - 5 20 42 - 5 32 39 - 5 16 51 - 5 36 30 -0.31 36 0 0 - 5 35 40 20 32 18.0 34 111 -67 - 5 29 42 - 5 41 38 - 5 25 50 - 5 45 29 -0.31 37 0 0 - 5 44 14 20 32 9.8 35 111 -68 - 5 38 16 - 5 50 11 - 5 34 25 - 5 54 2 -0.31 38 0 0 - 5 52 23 20 32 1.3 36 111 -68 - 5 46 26 - 5 58 20 - 5 42 35 - 6 2 11 -0.31 39 0 0 - 6 0 7 20 31 52.8 37 111 -69 - 5 54 10 - 6 6 4 - 5 50 20 - 6 9 54 -0.31 40 0 0 - 6 7 27 20 31 44.0 38 111 -70 - 6 1 30 - 6 13 23 - 5 57 40 - 6 17 13 -0.31 41 0 0 - 6 14 21 20 31 35.1 39 111 -70 - 6 8 25 - 6 20 17 - 6 4 35 - 6 24 7 -0.31 42 0 0 - 6 20 51 20 31 26.0 40 111 -71 - 6 14 55 - 6 26 47 - 6 11 5 - 6 30 37 -0.31 43 0 0 - 6 26 56 20 31 16.7 41 111 -71 - 6 21 0 - 6 32 52 - 6 17 10 - 6 36 41 -0.31 44 0 0 - 6 32 36 20 31 7.3 42 111 -72 - 6 26 41 - 6 38 32 - 6 22 51 - 6 42 21 -0.31 45 0 0 - 6 37 52 20 30 57.7 43 112 -72 - 6 31 57 - 6 43 47 - 6 28 7 - 6 47 36 -0.31 46 0 0 - 6 42 43 20 30 48.0 44 112 -73 - 6 36 48 - 6 48 37 - 6 32 58 - 6 52 26 -0.31 47 0 0 - 6 47 9 20 30 38.1 45 112 -73 - 6 41 14 - 6 53 3 - 6 37 25 - 6 56 52 -0.31 48 0 0 - 6 51 10 20 30 28.1 46 112 -73 - 6 45 15 - 6 57 4 - 6 41 26 - 7 0 53 -0.31 49 0 0 - 6 54 47 20 30 18.0 47 112 -74 - 6 48 52 - 7 0 41 - 6 45 3 - 7 4 30 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16 20 25 25.3 67 129 -64 - 6 7 20 - 6 19 11 - 6 3 30 - 6 23 1 -0.30 75 0 0 - 6 6 25 20 25 12.4 68 131 -63 - 6 0 29 - 6 12 20 - 5 56 39 - 6 16 10 -0.30 76 0 0 - 5 59 10 20 24 59.4 68 132 -62 - 5 53 14 - 6 5 6 - 5 49 24 - 6 8 56 -0.30 77 0 0 - 5 51 32 20 24 46.3 69 134 -62 - 5 45 36 - 5 57 28 - 5 41 45 - 6 1 18 -0.30 78 0 0 - 5 43 31 20 24 33.2 69 136 -61 - 5 37 34 - 5 49 27 - 5 33 43 - 5 53 17 -0.30 79 0 0 - 5 35 6 20 24 20.0 70 138 -60 - 5 29 9 - 5 41 3 - 5 25 18 - 5 44 53 -0.30 80 0 0 - 5 26 18 20 24 6.8 70 140 -59 - 5 20 20 - 5 32 15 - 5 16 29 - 5 36 6 -0.30 81 0 0 - 5 17 6 20 23 53.5 71 142 -58 - 5 11 9 - 5 23 4 - 5 7 17 - 5 26 55 -0.30 82 0 0 - 5 7 32 20 23 40.1 71 145 -58 - 5 1 34 - 5 13 30 - 4 57 43 - 5 17 21 -0.30 83 0 0 - 4 57 35 20 23 26.7 72 147 -57 - 4 51 36 - 5 3 33 - 4 47 45 - 5 7 24 -0.30 84 0 0 - 4 47 14 20 23 13.3 72 150 -56 - 4 41 15 - 4 53 13 - 4 37 24 - 4 57 5 -0.30 85 0 0 - 4 36 31 20 22 59.8 72 153 -55 - 4 30 32 - 4 42 30 - 4 26 40 - 4 46 22 -0.31 86 0 0 - 4 25 25 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18 -0.31 111 0 0 2 9 21 20 17 6.7 63 214 -30 2 15 35 2 3 8 2 19 36 1 59 7 -0.31 112 0 0 2 29 30 20 16 53.5 62 215 -29 2 35 44 2 23 16 2 39 46 2 19 15 -0.31 113 0 0 2 49 57 20 16 40.5 61 217 -28 2 56 11 2 43 42 3 0 13 2 39 41 -0.31 114 0 0 3 10 41 20 16 27.5 60 218 -28 3 16 56 3 4 26 3 20 59 3 0 24 -0.31 115 0 0 3 31 43 20 16 14.6 59 219 -27 3 37 59 3 25 27 3 42 2 3 21 25 -0.32 116 0 0 3 53 2 20 16 1.8 59 219 -26 3 59 18 3 46 46 4 3 22 3 42 43 -0.32 117 0 0 4 14 38 20 15 49.1 58 220 -25 4 20 55 4 8 21 4 24 58 4 4 17 -0.32 118 0 0 4 36 30 20 15 36.5 57 221 -23 4 42 47 4 30 12 4 46 52 4 26 8 -0.32 119 0 0 4 58 38 20 15 24.0 56 222 -22 5 4 56 4 52 20 5 9 1 4 48 15 -0.32 120 0 0 5 21 2 20 15 11.7 55 223 -21 5 27 21 5 14 43 5 31 25 5 10 38 -0.32 121 0 0 5 43 41 20 14 59.4 54 223 -20 5 50 0 5 37 21 5 54 5 5 33 16 -0.32 122 0 0 6 6 35 20 14 47.3 53 224 -19 6 12 55 6 0 15 6 17 0 5 56 9 -0.32 123 0 0 6 29 43 20 14 35.3 52 225 -18 6 36 4 6 23 22 6 40 10 6 19 17 -0.32 124 0 0 6 53 6 20 14 23.5 51 225 -17 6 59 27 6 46 44 7 3 33 6 42 38 -0.32 125 0 0 7 16 42 20 14 11.7 50 226 -16 7 23 4 7 10 20 7 27 10 7 6 14 -0.32 126 0 0 7 40 31 20 14 0.2 49 226 -15 7 46 54 7 34 9 7 51 1 7 30 2 -0.32 127 0 0 8 4 33 20 13 48.8 48 227 -14 8 10 56 7 58 10 8 15 4 7 54 3 -0.32 128 0 0 8 28 48 20 13 37.5 47 227 -13 8 35 11 8 22 24 8 39 19 8 18 17 -0.32 129 0 0 8 53 14 20 13 26.4 46 228 -12 8 59 38 8 46 50 9 3 46 8 42 42 -0.32 130 0 0 9 17 51 20 13 15.5 45 228 -11 9 24 16 9 11 27 9 28 25 9 7 19 -0.32 131 0 0 9 42 40 20 13 4.7 44 229 -10 9 49 5 9 36 15 9 53 14 9 32 6 -0.32 132 0 0 10 7 38 20 12 54.2 43 229 -9 10 14 4 10 1 13 10 18 13 9 57 4 -0.32 133 0 0 10 32 46 20 12 43.8 42 230 -8 10 39 13 10 26 20 10 43 22 10 22 11 -0.32 134 0 0 10 58 4 20 12 33.6 41 230 -7 11 4 31 10 51 37 11 8 41 10 47 28 -0.32 135 0 0 11 23 30 20 12 23.6 41 231 -6 11 29 57 11 17 3 11 34 7 11 12 53 -0.32 136 0 0 11 49 4 20 12 13.8 40 231 -5 11 55 32 11 42 37 11 59 43 11 38 27 -0.32 137 0 0 12 14 46 20 12 4.2 39 231 -4 12 21 14 12 8 19 12 25 25 12 4 8 -0.32 138 0 0 12 40 35 20 11 54.8 38 232 -3 12 47 4 12 34 7 12 51 15 12 29 56 -0.33 139 0 0 13 6 30 20 11 45.6 37 232 -2 13 12 59 13 0 2 13 17 11 12 55 51 -0.33 140 0 0 13 32 32 20 11 36.6 35 233 -1 13 39 1 13 26 3 13 43 12 13 21 52 -0.33 141 0 0 13 58 38 20 11 27.9 34 233 0 14 5 7 13 52 8 14 9 19 13 47 57 -0.33 142 0 0 14 24 49 20 11 19.3 33 233 1 14 31 19 14 18 19 14 35 30 14 14 8 -0.33 143 0 0 14 51 3 20 11 11.0 32 234 2 14 57 34 14 44 33 15 1 46 14 40 22 -0.33 144 0 0 15 17 22 20 11 3.0 31 234 3 15 23 52 15 10 51 15 28 4 15 6 39 -0.33 145 0 0 15 43 42 20 10 55.1 30 235 4 15 50 13 15 37 12 15 54 26 15 33 0 -0.33 146 0 0 16 10 6 20 10 47.5 29 235 5 16 16 37 16 3 35 16 20 49 15 59 23 -0.33 147 0 0 16 36 30 20 10 40.2 28 235 6 16 43 1 16 29 59 16 47 14 16 25 47 -0.33 148 0 0 17 2 55 20 10 33.1 27 236 7 17 9 27 16 56 24 17 13 40 16 52 12 -0.33 149 0 0 17 29 21 20 10 26.2 26 236 8 17 35 52 17 22 49 17 40 5 17 18 37 -0.33 150 0 0 17 55 46 20 10 19.6 25 236 9 18 2 17 17 49 14 18 6 31 17 45 2 -0.33 151 0 0 18 22 10 20 10 13.2 24 237 10 18 28 41 18 15 38 18 32 55 18 11 25 -0.33 152 0 0 18 48 32 20 10 7.1 23 237 11 18 55 4 18 42 0 18 59 17 18 37 47 -0.33 153 0 0 19 14 51 20 10 1.2 22 237 12 19 21 23 19 8 20 19 25 37 19 4 7 -0.33 154 0 0 19 41 8 20 9 55.6 21 238 13 19 47 40 19 34 36 19 51 53 19 30 23 -0.33 155 0 0 20 7 21 20 9 50.3 20 238 14 20 13 53 20 0 49 20 18 6 19 56 36 -0.33 156 0 0 20 33 30 20 9 45.2 19 239 15 20 40 2 20 26 58 20 44 15 20 22 45 -0.33 157 0 0 20 59 33 20 9 40.4 18 239 16 21 6 5 20 53 1 21 10 19 20 48 49 -0.33 158 0 0 21 25 31 20 9 35.8 17 239 17 21 32 3 21 19 0 21 36 17 21 14 47 -0.33 159 0 0 21 51 23 20 9 31.5 16 240 18 21 57 55 21 44 52 22 2 8 21 40 39 -0.33 160 0 0 22 17 8 20 9 27.5 15 240 19 22 23 40 22 10 37 22 27 53 22 6 24 -0.33 161 0 0 22 42 46 20 9 23.7 14 241 20 22 49 17 22 36 14 22 53 30 22 32 2 -0.33 162 0 0 23 8 15 20 9 20.2 13 241 21 23 14 47 23 1 44 23 18 59 22 57 31 -0.33 163 0 0 23 33 36 20 9 16.9 12 241 22 23 40 7 23 27 5 23 44 20 23 22 53 -0.33 164 0 0 23 58 47 20 9 13.9 11 242 23 24 5 18 23 52 17 24 9 31 23 48 4 -0.33 165 0 0 24 23 49 20 9 11.1 10 242 24 24 30 20 24 17 19 24 34 32 24 13 7 -0.33 166 0 0 24 48 40 20 9 8.7 9 243 25 24 55 11 24 42 10 24 59 23 24 37 58 -0.33 167 0 0 25 13 21 20 9 6.4 8 243 26 25 19 51 25 6 51 25 24 3 25 2 39 -0.33 168 0 0 25 37 50 20 9 4.5 7 243 27 25 44 19 25 31 20 25 48 31 25 27 9 -0.33 169 0 0 26 2 6 20 9 2.7 6 244 28 26 8 36 25 55 37 26 12 47 25 51 26 -0.33 170 0 0 26 26 11 20 9 1.3 5 244 29 26 32 40 26 19 42 26 36 51 26 15 31 -0.33 171 0 0 26 50 2 20 9 0.1 4 245 30 26 56 31 26 43 33 27 0 42 26 39 23 -0.33 172 0 0 27 13 39 20 8 59.1 3 245 31 27 20 8 27 7 11 27 24 19 27 3 1 -0.33 173 0 0 27 37 3 20 8 58.4 2 246 32 27 43 31 27 30 35 27 47 41 27 26 25 -0.33 174 0 0 28 0 12 20 8 57.9 2 246 33 28 6 40 27 53 45 28 10 50 27 49 35 -0.34 175 0 0 28 23 6 20 8 57.6 1 247 34 28 29 33 28 16 40 28 33 43 28 12 30 -0.35 Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: TYC 6320-01457-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 46 35.4298 DE: -20 15 18.277 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 46 35.4299 DE: -20 15 18.277 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.0 * B mag [mag]: 11.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3666) Holman asteroid class: approx. diameter [km]: 21 approx. diameter ["]: 0.012 distance from Earth [AU]: 2.33600 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 date of fit: 2023 Apr 24 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): 0.021", 0.003", 82.5° remarks: * orbital elements for (3666)Holman : Mean anomaly = 95.8367696130 deg Arg. of pericenter = 53.4887214495 deg Long. of node = 120.3055183039 deg Inclination = 2.3648792046 deg Eccentricity = 0.1292135614 Semimajor axis = 3.1168056788 AU Perihelion dist = 2.7140721169 AU Mag: H = 12.41, G = 0.15 Epoch of elements : MJD 60469.84853091 TDT (2024 Jun 08.8485) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr24,2.64,2024,6,8,20.364730,-0.068272,0.284531,-4.314994,-1.033431,-0.003319,-0.000686,0.000001,0.000000 93.8325,-20.1952,-125.66,22.94,False TYC 6320-01457-1,19.77650828,-20.2550769,11.44,10.95,10.69,0.0,0,,19.80062671,-20.1951730,6.51,6.32,0,0,0 3666,Holman,17.46,20.777,2.3360,0,0,-1.153,-3.89,,1.4,0 0,95.6848,2024,6,8,53.4887,120.3055,2.3649,0.12921,3.11681,2.71407,12.40,5.0,0.15 1.323,0.0210,0.0033,83,0.0040,Known errors,1.29,0,-1,-1 20240608_1457-1,60139.38 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 09:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org