IOTA/IOTA-ES occultation update for (496) Gryphia / TYC 803-00374-1 event on 2024 Jan 11, 13:50 UT Visible from Summary ------- On 2024 Jan 11 UT, the 13.427 km diameter asteroid (496) Gryphia will occult a 10.5 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.56 mag to 14.00 mag (the magnitude of the asteroid) for at most 1.690 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 Jan 11, 13:37 - 2024 Jan 11, 14:03 * geocentric midpoint of event [JD]: 2460321.07686317 * magnitude of target star: 10.48 * magnitude drop [mag]: 3.56 * estimated maximum duration [s]: 1.690 * Moon: 0 % sunlit, 162° distance * Sun: 165° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.25 * 1 sigma uncertainty interval [seconds]: +/- 3.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.032", 0.004", 102°) * approx speed of asteroid's shadow [km/s]: 7.9424 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 803-00374-1 by 496 Gryphia on 2024 Jan 11 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 76 0 0 - 9 4 17 14 3 22.5 1 78 -10 - 9 0 20 - 9 8 14 - 8 58 21 - 9 10 12 .... 77 0 0 - 8 51 30 14 3 22.2 2 77 -11 - 8 47 33 - 8 55 26 - 8 45 35 - 8 57 25 0.19 78 0 0 - 8 38 55 14 3 21.6 3 77 -12 - 8 34 59 - 8 42 52 - 8 33 1 - 8 44 50 0.25 79 0 0 - 8 26 34 14 3 20.8 4 77 -13 - 8 22 38 - 8 30 30 - 8 20 39 - 8 32 28 0.28 80 0 0 - 8 14 25 14 3 19.8 5 77 -14 - 8 10 29 - 8 18 21 - 8 8 30 - 8 20 19 0.29 81 0 0 - 8 2 29 14 3 18.4 6 77 -15 - 7 58 33 - 8 6 24 - 7 56 35 - 8 8 23 0.30 82 0 0 - 7 50 46 14 3 16.9 7 77 -16 - 7 46 50 - 7 54 41 - 7 44 52 - 7 56 39 0.31 83 0 0 - 7 39 16 14 3 15.0 8 77 -17 - 7 35 21 - 7 43 12 - 7 33 23 - 7 45 10 0.31 84 0 0 - 7 28 0 14 3 12.9 9 76 -18 - 7 24 5 - 7 31 55 - 7 22 7 - 7 33 53 0.32 85 0 0 - 7 16 58 14 3 10.6 10 76 -19 - 7 13 3 - 7 20 53 - 7 11 5 - 7 22 51 0.32 86 0 0 - 7 6 9 14 3 8.0 11 76 -20 - 7 2 14 - 7 10 4 - 7 0 17 - 7 12 2 0.32 87 0 0 - 6 55 35 14 3 5.2 12 76 -21 - 6 51 40 - 6 59 29 - 6 49 42 - 7 1 27 0.32 88 0 0 - 6 45 14 14 3 2.1 13 76 -22 - 6 41 20 - 6 49 9 - 6 39 22 - 6 51 6 0.33 89 0 0 - 6 35 8 14 2 58.8 14 76 -23 - 6 31 14 - 6 39 2 - 6 29 16 - 6 41 0 0.33 90 0 0 - 6 25 16 14 2 55.2 15 76 -24 - 6 21 22 - 6 29 11 - 6 19 25 - 6 31 8 0.33 91 0 0 - 6 15 39 14 2 51.4 16 76 -25 - 6 11 45 - 6 19 33 - 6 9 48 - 6 21 30 0.33 92 0 0 - 6 6 16 14 2 47.3 17 75 -26 - 6 2 23 - 6 10 10 - 6 0 25 - 6 12 8 0.33 93 0 0 - 5 57 8 14 2 43.1 18 75 -27 - 5 53 15 - 6 1 2 - 5 51 18 - 6 2 59 0.33 94 0 0 - 5 48 15 14 2 38.6 19 75 -28 - 5 44 22 - 5 52 9 - 5 42 25 - 5 54 6 0.33 95 0 0 - 5 39 37 14 2 33.8 20 75 -28 - 5 35 44 - 5 43 31 - 5 33 47 - 5 45 28 0.33 96 0 0 - 5 31 14 14 2 28.8 20 75 -29 - 5 27 21 - 5 35 7 - 5 25 24 - 5 37 4 0.33 97 0 0 - 5 23 6 14 2 23.6 21 75 -30 - 5 19 13 - 5 26 59 - 5 17 17 - 5 28 56 0.33 98 0 0 - 5 15 14 14 2 18.2 22 75 -31 - 5 11 21 - 5 19 7 - 5 9 24 - 5 21 3 0.33 99 0 0 - 5 7 36 14 2 12.6 23 74 -32 - 5 3 44 - 5 11 29 - 5 1 47 - 5 13 26 0.33 100 0 0 - 5 0 14 14 2 6.7 24 74 -33 - 4 56 22 - 5 4 7 - 4 54 25 - 5 6 4 0.33 101 0 0 - 4 53 8 14 2 0.7 25 74 -34 - 4 49 15 - 4 57 0 - 4 47 19 - 4 58 57 0.33 102 0 0 - 4 46 17 14 1 54.4 26 74 -35 - 4 42 24 - 4 50 9 - 4 40 28 - 4 52 5 0.33 103 0 0 - 4 39 41 14 1 47.9 27 74 -36 - 4 35 49 - 4 43 33 - 4 33 52 - 4 45 30 0.33 104 0 0 - 4 33 21 14 1 41.2 28 74 -37 - 4 29 29 - 4 37 13 - 4 27 33 - 4 39 10 0.33 105 0 0 - 4 27 17 14 1 34.3 29 73 -37 - 4 23 25 - 4 31 9 - 4 21 29 - 4 33 5 0.33 106 0 0 - 4 21 28 14 1 27.2 30 73 -38 - 4 17 37 - 4 25 20 - 4 15 40 - 4 27 17 0.33 107 0 0 - 4 15 56 14 1 19.9 31 73 -39 - 4 12 4 - 4 19 47 - 4 10 8 - 4 21 44 0.33 108 0 0 - 4 10 39 14 1 12.4 32 73 -40 - 4 6 47 - 4 14 30 - 4 4 51 - 4 16 27 0.33 109 0 0 - 4 5 38 14 1 4.7 33 73 -41 - 4 1 46 - 4 9 29 - 3 59 50 - 4 11 25 0.33 110 0 0 - 4 0 53 14 0 56.8 34 72 -42 - 3 57 1 - 4 4 44 - 3 55 5 - 4 6 40 0.33 111 0 0 - 3 56 23 14 0 48.7 35 72 -43 - 3 52 32 - 4 0 15 - 3 50 36 - 4 2 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71 20 -62 - 5 32 52 - 5 40 37 - 5 30 56 - 5 42 34 0.33 161 0 0 - 5 44 59 13 51 17.1 71 17 -62 - 5 41 6 - 5 48 51 - 5 39 10 - 5 50 48 0.33 162 0 0 - 5 53 26 13 51 3.8 71 14 -61 - 5 49 34 - 5 57 19 - 5 47 37 - 5 59 16 0.33 163 0 0 - 6 2 7 13 50 50.5 72 11 -61 - 5 58 14 - 6 6 0 - 5 56 17 - 6 7 57 0.33 164 0 0 - 6 11 1 13 50 37.2 72 8 -60 - 6 7 8 - 6 14 54 - 6 5 11 - 6 16 51 0.33 165 0 0 - 6 20 8 13 50 23.8 71 5 -60 - 6 16 15 - 6 24 1 - 6 14 18 - 6 25 58 0.33 166 0 0 - 6 29 28 13 50 10.5 71 2 -60 - 6 25 35 - 6 33 21 - 6 23 38 - 6 35 18 0.33 167 0 0 - 6 39 0 13 49 57.2 71 359 -59 - 6 35 7 - 6 42 54 - 6 33 10 - 6 44 51 0.33 168 0 0 - 6 48 46 13 49 43.9 71 357 -58 - 6 44 52 - 6 52 39 - 6 42 55 - 6 54 37 0.33 169 0 0 - 6 58 43 13 49 30.6 71 354 -58 - 6 54 50 - 7 2 37 - 6 52 52 - 7 4 34 0.34 170 0 0 - 7 8 53 13 49 17.3 71 351 -57 - 7 4 59 - 7 12 47 - 7 3 2 - 7 14 45 0.34 171 0 0 - 7 19 15 13 49 4.0 70 348 -57 - 7 15 21 - 7 23 10 - 7 13 24 - 7 25 7 0.34 172 0 0 - 7 29 50 13 48 50.8 70 346 -56 - 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323 -48 - 9 47 17 - 9 55 9 - 9 45 18 - 9 57 7 0.34 -175 0 0 -10 4 7 13 46 2.9 62 322 -47 -10 0 11 -10 8 3 - 9 58 12 -10 10 2 0.34 -174 0 0 -10 17 10 13 45 50.4 61 321 -46 -10 13 14 -10 21 7 -10 11 16 -10 23 5 0.34 -173 0 0 -10 30 23 13 45 38.1 60 319 -45 -10 26 27 -10 34 20 -10 24 28 -10 36 18 0.34 -172 0 0 -10 43 45 13 45 25.8 60 318 -45 -10 39 48 -10 47 42 -10 37 50 -10 49 40 0.34 -171 0 0 -10 57 15 13 45 13.6 59 317 -44 -10 53 19 -11 1 12 -10 51 20 -11 3 11 0.34 -170 0 0 -11 10 54 13 45 1.5 58 316 -43 -11 6 58 -11 14 51 -11 4 59 -11 16 50 0.34 -169 0 0 -11 24 42 13 44 49.5 57 315 -42 -11 20 45 -11 28 39 -11 18 46 -11 30 38 0.34 -168 0 0 -11 38 37 13 44 37.7 56 314 -41 -11 34 40 -11 42 34 -11 32 41 -11 44 34 0.34 -167 0 0 -11 52 40 13 44 25.9 56 313 -40 -11 48 43 -11 56 38 -11 46 44 -11 58 37 0.34 -166 0 0 -12 6 51 13 44 14.3 55 312 -40 -12 2 54 -12 10 49 -12 0 55 -12 12 48 0.34 -165 0 0 -12 21 9 13 44 2.7 54 312 -39 -12 17 12 -12 25 7 -12 15 12 -12 27 6 0.34 -164 0 0 -12 35 34 13 43 51.3 53 311 -38 -12 31 37 -12 39 32 -12 29 37 -12 41 32 0.34 -163 0 0 -12 50 7 13 43 40.0 52 310 -37 -12 46 9 -12 54 5 -12 44 9 -12 56 4 0.34 -162 0 0 -13 4 45 13 43 28.9 51 309 -36 -13 0 47 -13 8 43 -12 58 48 -13 10 43 0.34 -161 0 0 -13 19 30 13 43 17.9 50 309 -35 -13 15 32 -13 23 28 -13 13 32 -13 25 28 0.34 -160 0 0 -13 34 21 13 43 7.0 50 308 -34 -13 30 23 -13 38 20 -13 28 23 -13 40 19 0.34 -159 0 0 -13 49 18 13 42 56.3 49 307 -33 -13 45 19 -13 53 16 -13 43 20 -13 55 16 0.34 -158 0 0 -14 4 20 13 42 45.7 48 307 -33 -14 0 22 -14 8 19 -13 58 22 -14 10 19 0.34 -157 0 0 -14 19 28 13 42 35.2 47 306 -32 -14 15 29 -14 23 27 -14 13 29 -14 25 26 0.34 -156 0 0 -14 34 40 13 42 24.9 46 305 -31 -14 30 41 -14 38 39 -14 28 42 -14 40 39 0.35 -155 0 0 -14 49 57 13 42 14.8 45 305 -30 -14 45 59 -14 53 56 -14 43 59 -14 55 56 0.35 -154 0 0 -15 5 19 13 42 4.8 44 304 -29 -15 1 20 -15 9 18 -14 59 20 -15 11 18 0.35 -153 0 0 -15 20 45 13 41 55.0 43 304 -28 -15 16 46 -15 24 44 -15 14 46 -15 26 44 0.35 -152 0 0 -15 36 14 13 41 45.4 42 303 -27 -15 32 15 -15 40 14 -15 30 15 -15 42 14 0.35 -151 0 0 -15 51 47 13 41 35.9 41 303 -26 -15 47 48 -15 55 47 -15 45 48 -15 57 47 0.35 -150 0 0 -16 7 24 13 41 26.6 41 302 -25 -16 3 24 -16 11 23 -16 1 24 -16 13 23 0.35 -149 0 0 -16 23 3 13 41 17.5 40 302 -25 -16 19 4 -16 27 3 -16 17 4 -16 29 3 0.35 -148 0 0 -16 38 45 13 41 8.5 39 301 -24 -16 34 46 -16 42 45 -16 32 45 -16 44 45 0.35 -147 0 0 -16 54 29 13 40 59.7 38 301 -23 -16 50 30 -16 58 29 -16 48 30 -17 0 29 0.35 -146 0 0 -17 10 16 13 40 51.2 37 300 -22 -17 6 16 -17 14 16 -17 4 16 -17 16 16 0.35 -145 0 0 -17 26 4 13 40 42.8 36 300 -21 -17 22 4 -17 30 4 -17 20 4 -17 32 4 0.35 -144 0 0 -17 41 54 13 40 34.6 35 299 -20 -17 37 54 -17 45 54 -17 35 54 -17 47 54 0.35 -143 0 0 -17 57 44 13 40 26.5 34 299 -19 -17 53 45 -18 1 44 -17 51 44 -18 3 45 0.35 -142 0 0 -18 13 36 13 40 18.7 33 299 -18 -18 9 36 -18 17 36 -18 7 36 -18 19 36 0.35 -141 0 0 -18 29 28 13 40 11.1 32 298 -17 -18 25 28 -18 33 28 -18 23 28 -18 35 29 0.35 -140 0 0 -18 45 20 13 40 3.7 31 298 -16 -18 41 20 -18 49 21 -18 39 20 -18 51 21 0.35 -139 0 0 -19 1 13 13 39 56.5 30 297 -15 -18 57 13 -19 5 13 -18 55 12 -19 7 13 0.35 -138 0 0 -19 17 5 13 39 49.4 29 297 -14 -19 13 5 -19 21 5 -19 11 4 -19 23 5 0.35 -137 0 0 -19 32 56 13 39 42.6 28 296 -13 -19 28 56 -19 36 56 -19 26 55 -19 38 56 0.35 -136 0 0 -19 48 46 13 39 36.0 28 296 -13 -19 44 46 -19 52 46 -19 42 45 -19 54 47 0.35 -135 0 0 -20 4 35 13 39 29.6 27 296 -12 -20 0 35 -20 8 35 -19 58 34 -20 10 35 0.35 -134 0 0 -20 20 22 13 39 23.4 26 295 -11 -20 16 22 -20 24 22 -20 14 21 -20 26 23 0.35 -133 0 0 -20 36 7 13 39 17.5 25 295 -10 -20 32 7 -20 40 7 -20 30 7 -20 42 8 0.35 -132 0 0 -20 51 50 13 39 11.7 24 294 -9 -20 47 50 -20 55 50 -20 45 50 -20 57 51 0.35 -131 0 0 -21 7 31 13 39 6.2 23 294 -8 -21 3 30 -21 11 31 -21 1 30 -21 13 31 0.35 -130 0 0 -21 23 8 13 39 0.9 22 294 -7 -21 19 8 -21 27 8 -21 17 8 -21 29 9 0.35 -129 0 0 -21 38 43 13 38 55.8 21 293 -6 -21 34 43 -21 42 43 -21 32 42 -21 44 43 0.35 -128 0 0 -21 54 13 13 38 50.9 20 293 -5 -21 50 13 -21 58 13 -21 48 13 -22 0 14 0.35 -127 0 0 -22 9 41 13 38 46.2 19 292 -4 -22 5 41 -22 13 41 -22 3 40 -22 15 41 0.35 -126 0 0 -22 25 4 13 38 41.8 18 292 -3 -22 21 4 -22 29 4 -22 19 4 -22 31 4 0.35 -125 0 0 -22 40 22 13 38 37.5 17 292 -2 -22 36 23 -22 44 22 -22 34 22 -22 46 23 0.35 -124 0 0 -22 55 36 13 38 33.5 16 291 -1 -22 51 37 -22 59 36 -22 49 37 -23 1 37 0.35 -123 0 0 -23 10 46 13 38 29.8 15 291 0 -23 6 46 -23 14 45 -23 4 46 -23 16 46 0.35 -122 0 0 -23 25 49 13 38 26.2 14 290 0 -23 21 50 -23 29 49 -23 19 50 -23 31 49 0.35 -121 0 0 -23 40 48 13 38 22.9 13 290 1 -23 36 48 -23 44 47 -23 34 48 -23 46 48 0.35 -120 0 0 -23 55 40 13 38 19.8 13 289 2 -23 51 41 -23 59 40 -23 49 41 -24 1 40 0.35 -119 0 0 -24 10 27 13 38 16.9 12 289 3 -24 6 27 -24 14 26 -24 4 27 -24 16 26 0.35 -118 0 0 -24 25 7 13 38 14.3 11 289 4 -24 21 7 -24 29 6 -24 19 7 -24 31 6 0.35 -117 0 0 -24 39 40 13 38 11.8 10 288 5 -24 35 41 -24 43 39 -24 33 41 -24 45 39 0.36 -116 0 0 -24 54 6 13 38 9.6 9 288 6 -24 50 7 -24 58 6 -24 48 8 -25 0 6 0.36 -115 0 0 -25 8 26 13 38 7.6 8 287 7 -25 4 27 -25 12 25 -25 2 27 -25 14 25 0.36 -114 0 0 -25 22 37 13 38 5.9 7 287 8 -25 18 39 -25 26 36 -25 16 39 -25 28 36 0.36 -113 0 0 -25 36 42 13 38 4.3 6 287 9 -25 32 43 -25 40 40 -25 30 43 -25 42 40 0.36 -112 0 0 -25 50 38 13 38 3.0 5 286 10 -25 46 39 -25 54 36 -25 44 39 -25 56 36 0.36 -111 0 0 -26 4 25 13 38 1.9 4 286 11 -26 0 27 -26 8 24 -25 58 28 -26 10 24 0.36 -110 0 0 -26 18 5 13 38 1.1 3 285 12 -26 14 7 -26 22 3 -26 12 7 -26 24 3 0.37 -109 0 0 -26 31 36 13 38 0.4 2 285 13 -26 27 37 -26 35 34 -26 25 38 -26 37 33 0.38 -108 0 0 -26 44 57 13 38 0.0 1 284 13 -26 40 59 -26 48 55 -26 39 0 -26 50 55 0.40 -107 0 0 -26 58 10 13 37 59.8 0 284 14 -26 54 12 -27 2 8 -26 52 13 -27 4 7 0.49 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: TYC 803-00374-1 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 18 05.1699 DE: +12 12 56.827 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 18 05.1700 DE: +12 12 56.826 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.5 * B mag [mag]: 10.7 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (496) Gryphia asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.017 distance from Earth [AU]: 1.06340 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Feb 11 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): 0.032", 0.004", 102.354° remarks: * orbital elements for (496)Gryphia : Mean anomaly = 9.7262171996 deg Arg. of pericenter = 258.4858854882 deg Long. of node = 207.5601494026 deg Inclination = 3.7938155018 deg Eccentricity = 0.0785822023 Semimajor axis = 2.1986669682 AU Perihelion dist = 2.0258908757 AU Mag: H = 11.80, G = 0.15 Epoch of elements : MJD 60320.57686388 TDT (2024 Jan 11.5769) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Feb11,1.69,2024,1,11,13.844716,-0.050260,-0.312730,-4.426254,0.710343,-0.001101,0.000963,0.000002,0.000000 166.6106,12.1407,-25.73,-21.83,False TYC 803-00374-1,8.30143609,12.2157852,10.68,10.48,10.37,0.0,0,,8.32384889,12.1406732,3.56,3.24,0,0,0 496,Gryphia,14.00,13.427,1.0634,0,0,-2.496,5.88,,1.0,0 0,9.5518,2024,1,11,258.4859,207.5601,3.7938,0.07858,2.19867,2.02589,11.80,5.0,0.15 1.251,0.0317,0.0040,102,0.0044,Known errors,0.99,0,-1,-1 20240111_0374-1,60137.01 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:15 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org