IOTA/IOTA-ES occultation update for (16565) 1992 CZ1 / TYC 1926-00385-1 event on 2024 Dec 26, 14:12 UT Visible from Summary ------- On 2024 Dec 26 UT, the 15.854 km diameter asteroid (16565) 1992 CZ1 will occult a 11.1 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 6.03 mag to 17.10 mag (the magnitude of the asteroid) for at most 1.600 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: 95 * date and approx. time of event: 2024 Dec 26, 14:02 - 2024 Dec 26, 14:22 * geocentric midpoint of event [JD]: 2460671.09196579 * magnitude of target star: 11.07 * magnitude drop [mag]: 6.03 * estimated maximum duration [s]: 1.600 * Moon: 19 % sunlit, 107° distance * Sun: 158° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 17 * 1 sigma uncertainty interval [path widths]: +/- 0.45 * 1 sigma uncertainty interval [seconds]: +/- 4.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.033, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.034", 0.003", 105°) * approx speed of asteroid's shadow [km/s]: 9.8794 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1926-00385-1 by 16565 1992 CZ1 on 2024 Dec 26 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 85 0 0 -12 45 50 14 22 21.6 0 66 -21 -12 40 42 -12 50 58 -12 36 9 -12 55 31 .... 86 0 0 -12 19 52 14 22 21.3 2 66 -23 -12 14 45 -12 25 0 -12 10 13 -12 29 33 0.19 87 0 0 -11 54 11 14 22 20.9 3 65 -24 -11 49 5 -11 59 18 -11 44 33 -12 3 51 0.29 88 0 0 -11 28 47 14 22 20.2 4 65 -25 -11 23 41 -11 33 53 -11 19 9 -11 38 25 0.33 89 0 0 -11 3 40 14 22 19.2 5 65 -26 -10 58 34 -11 8 45 -10 54 3 -11 13 17 0.36 90 0 0 -10 38 50 14 22 18.0 6 65 -27 -10 33 45 -10 43 55 -10 29 15 -10 48 26 0.37 91 0 0 -10 14 19 14 22 16.6 7 65 -28 -10 9 15 -10 19 23 -10 4 45 -10 23 53 0.38 92 0 0 - 9 50 6 14 22 15.0 8 65 -29 - 9 45 3 - 9 55 10 - 9 40 34 - 9 59 40 0.39 93 0 0 - 9 26 13 14 22 13.1 9 64 -30 - 9 21 10 - 9 31 16 - 9 16 42 - 9 35 45 0.39 94 0 0 - 9 2 40 14 22 11.0 10 64 -31 - 8 57 37 - 9 7 42 - 8 53 9 - 9 12 10 0.40 95 0 0 - 8 39 26 14 22 8.6 11 64 -32 - 8 34 25 - 8 44 28 - 8 29 57 - 8 48 56 0.40 96 0 0 - 8 16 33 14 22 6.0 12 64 -33 - 8 11 32 - 8 21 34 - 8 7 6 - 8 26 2 0.40 97 0 0 - 7 54 1 14 22 3.3 13 64 -34 - 7 49 1 - 7 59 2 - 7 44 35 - 8 3 29 0.41 98 0 0 - 7 31 51 14 22 0.2 14 64 -35 - 7 26 51 - 7 36 51 - 7 22 26 - 7 41 17 0.41 99 0 0 - 7 10 2 14 21 57.0 15 63 -36 - 7 5 3 - 7 15 1 - 7 0 38 - 7 19 27 0.41 100 0 0 - 6 48 35 14 21 53.6 16 63 -37 - 6 43 37 - 6 53 33 - 6 39 12 - 6 57 58 0.41 101 0 0 - 6 27 31 14 21 49.9 17 63 -38 - 6 22 33 - 6 32 28 - 6 18 9 - 6 36 53 0.41 102 0 0 - 6 6 49 14 21 46.0 18 63 -39 - 6 1 52 - 6 11 46 - 5 57 28 - 6 16 10 0.41 103 0 0 - 5 46 30 14 21 42.0 19 63 -40 - 5 41 34 - 5 51 27 - 5 37 11 - 5 55 50 0.41 104 0 0 - 5 26 34 14 21 37.7 20 63 -41 - 5 21 39 - 5 31 30 - 5 17 16 - 5 35 53 0.42 105 0 0 - 5 7 2 14 21 33.2 21 62 -42 - 5 2 7 - 5 11 57 - 4 57 45 - 5 16 20 0.42 106 0 0 - 4 47 54 14 21 28.5 22 62 -43 - 4 42 59 - 4 52 49 - 4 38 38 - 4 57 10 0.42 107 0 0 - 4 29 10 14 21 23.7 23 62 -44 - 4 24 16 - 4 34 4 - 4 19 55 - 4 38 25 0.42 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48 55 -65 1 14 26 1 5 3 1 18 36 1 0 52 0.42 134 0 0 1 16 54 14 18 11.3 49 55 -65 1 21 36 1 12 12 1 25 45 1 8 2 0.42 135 0 0 1 23 37 14 18 2.3 50 54 -66 1 28 18 1 18 55 1 32 28 1 14 46 0.42 136 0 0 1 29 54 14 17 53.3 50 54 -66 1 34 35 1 25 12 1 38 44 1 21 3 0.42 137 0 0 1 35 44 14 17 44.1 51 53 -67 1 40 25 1 31 3 1 44 34 1 26 53 0.42 138 0 0 1 41 7 14 17 34.9 52 53 -67 1 45 48 1 36 26 1 49 57 1 32 17 0.42 139 0 0 1 46 4 14 17 25.5 53 52 -67 1 50 45 1 41 24 1 54 54 1 37 15 0.42 140 0 0 1 50 35 14 17 16.1 54 51 -68 1 55 15 1 45 55 1 59 24 1 41 46 0.42 141 0 0 1 54 39 14 17 6.6 55 50 -68 1 59 20 1 49 59 2 3 28 1 45 50 0.42 142 0 0 1 58 17 14 16 57.0 55 50 -68 2 2 57 1 53 37 2 7 5 1 49 28 0.42 143 0 0 2 1 28 14 16 47.3 56 49 -68 2 6 8 1 56 48 2 10 17 1 52 40 0.42 144 0 0 2 4 13 14 16 37.6 57 48 -69 2 8 53 1 59 33 2 13 1 1 55 25 0.42 145 0 0 2 6 32 14 16 27.7 58 47 -69 2 11 12 2 1 52 2 15 20 1 57 44 0.42 146 0 0 2 8 24 14 16 17.8 58 46 -69 2 13 4 2 3 44 2 17 12 1 59 36 0.42 147 0 0 2 9 50 14 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42.2 66 23 -64 1 48 33 1 39 12 1 52 42 1 35 3 0.42 162 0 0 1 38 45 14 13 31.5 67 21 -64 1 43 26 1 34 5 1 47 35 1 29 56 0.42 163 0 0 1 33 12 14 13 20.7 67 19 -63 1 37 53 1 28 31 1 42 2 1 24 22 0.42 164 0 0 1 27 13 14 13 9.9 67 17 -63 1 31 54 1 22 32 1 36 3 1 18 23 0.42 165 0 0 1 20 48 14 12 59.1 67 15 -62 1 25 29 1 16 7 1 29 39 1 11 57 0.42 166 0 0 1 13 58 14 12 48.3 67 13 -61 1 18 39 1 9 16 1 22 48 1 5 6 0.42 167 0 0 1 6 41 14 12 37.5 67 10 -61 1 11 23 1 1 59 1 15 32 0 57 49 0.42 168 0 0 0 58 59 14 12 26.6 67 8 -60 1 3 41 0 54 17 1 7 51 0 50 6 0.42 169 0 0 0 50 51 14 12 15.8 67 6 -59 0 55 33 0 46 9 0 59 43 0 41 58 0.42 170 0 0 0 42 17 14 12 4.9 67 3 -58 0 47 0 0 37 35 0 51 10 0 33 24 0.42 171 0 0 0 33 18 14 11 54.0 67 1 -58 0 38 1 0 28 35 0 42 12 0 24 24 0.42 172 0 0 0 23 54 14 11 43.1 67 359 -57 0 28 37 0 19 10 0 32 48 0 14 59 0.42 173 0 0 0 14 4 14 11 32.3 67 357 -56 0 18 47 0 9 20 0 22 58 0 5 8 0.42 174 0 0 0 3 48 14 11 21.4 67 355 -55 0 8 32 - 0 0 56 0 12 44 - 0 5 8 0.42 175 0 0 - 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0 - 6 24 38 14 7 1.1 51 320 -32 - 6 19 42 - 6 29 34 - 6 15 19 - 6 33 57 0.43 -160 0 0 - 6 45 8 14 6 51.6 50 319 -31 - 6 40 11 - 6 50 5 - 6 35 48 - 6 54 28 0.43 -159 0 0 - 7 5 59 14 6 42.2 49 319 -30 - 7 1 1 - 7 10 56 - 6 56 38 - 7 15 20 0.43 -158 0 0 - 7 27 10 14 6 32.9 48 318 -29 - 7 22 12 - 7 32 8 - 7 17 48 - 7 36 33 0.43 -157 0 0 - 7 48 41 14 6 23.7 47 317 -28 - 7 43 43 - 7 53 40 - 7 39 18 - 7 58 5 0.43 -156 0 0 - 8 10 33 14 6 14.7 46 317 -27 - 8 5 33 - 8 15 32 - 8 1 8 - 8 19 57 0.43 -155 0 0 - 8 32 43 14 6 5.7 45 316 -26 - 8 27 44 - 8 37 43 - 8 23 18 - 8 42 9 0.43 -154 0 0 - 8 55 13 14 5 56.9 44 316 -25 - 8 50 13 - 9 0 13 - 8 45 47 - 9 4 40 0.43 -153 0 0 - 9 18 1 14 5 48.3 43 315 -24 - 9 13 1 - 9 23 2 - 9 8 34 - 9 27 30 0.43 -152 0 0 - 9 41 8 14 5 39.7 43 314 -23 - 9 36 7 - 9 46 10 - 9 31 39 - 9 50 38 0.43 -151 0 0 -10 4 33 14 5 31.4 42 314 -22 - 9 59 31 -10 9 35 - 9 55 3 -10 14 3 0.43 -150 0 0 -10 28 15 14 5 23.1 41 313 -21 -10 23 12 -10 33 18 -10 18 44 -10 37 47 0.43 -149 0 0 -10 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14 3 51.1 28 308 -8 -15 53 56 -16 4 15 -15 49 21 -16 8 51 0.44 -136 0 0 -16 25 58 14 3 45.3 27 308 -7 -16 20 47 -16 31 8 -16 16 12 -16 35 44 0.44 -135 0 0 -16 52 59 14 3 39.7 26 307 -6 -16 47 48 -16 58 10 -16 43 13 -17 2 46 0.44 -134 0 0 -17 20 9 14 3 34.3 25 307 -5 -17 14 58 -17 25 20 -17 10 22 -17 29 57 0.44 -133 0 0 -17 47 27 14 3 29.2 24 306 -4 -17 42 15 -17 52 38 -17 37 39 -17 57 15 0.44 -132 0 0 -18 14 51 14 3 24.2 23 306 -3 -18 9 39 -18 20 3 -18 5 3 -18 24 41 0.44 -131 0 0 -18 42 22 14 3 19.5 22 306 -2 -18 37 10 -18 47 35 -18 32 33 -18 52 12 0.44 -130 0 0 -19 9 59 14 3 14.9 21 305 -1 -19 4 46 -19 15 12 -19 0 9 -19 19 50 0.44 -129 0 0 -19 37 41 14 3 10.6 20 305 0 -19 32 28 -19 42 54 -19 27 50 -19 47 32 0.44 -128 0 0 -20 5 27 14 3 6.5 19 305 1 -20 0 13 -20 10 40 -19 55 35 -20 15 19 0.44 -127 0 0 -20 33 16 14 3 2.6 18 304 2 -20 28 2 -20 38 30 -20 23 24 -20 43 9 0.44 -126 0 0 -21 1 8 14 2 58.9 16 304 3 -20 55 54 -21 6 22 -20 51 16 -21 11 1 0.44 -125 0 0 -21 29 2 14 2 55.5 15 303 4 -21 23 48 -21 34 17 -21 19 9 -21 38 56 0.44 -124 0 0 -21 56 57 14 2 52.3 14 303 5 -21 51 43 -22 2 12 -21 47 4 -22 6 52 0.44 -123 0 0 -22 24 53 14 2 49.3 13 303 6 -22 19 39 -22 30 8 -22 14 59 -22 34 48 0.44 -122 0 0 -22 52 49 14 2 46.5 12 302 8 -22 47 34 -22 58 4 -22 42 55 -23 2 44 0.44 -121 0 0 -23 20 43 14 2 43.9 11 302 9 -23 15 28 -23 25 59 -23 10 49 -23 30 38 0.44 -120 0 0 -23 48 36 14 2 41.6 10 301 10 -23 43 21 -23 53 51 -23 38 41 -23 58 31 0.44 -119 0 0 -24 16 26 14 2 39.5 9 301 11 -24 11 11 -24 21 42 -24 6 31 -24 26 22 0.44 -118 0 0 -24 44 13 14 2 37.6 8 300 12 -24 38 58 -24 49 29 -24 34 18 -24 54 9 0.44 -117 0 0 -25 11 56 14 2 35.9 7 300 13 -25 6 41 -25 17 12 -25 2 1 -25 21 52 0.44 -116 0 0 -25 39 34 14 2 34.4 6 300 14 -25 34 19 -25 44 50 -25 29 39 -25 49 30 0.45 -115 0 0 -26 7 7 14 2 33.2 5 299 15 -26 1 51 -26 12 23 -25 57 12 -26 17 3 0.45 -114 0 0 -26 34 33 14 2 32.2 4 299 16 -26 29 18 -26 39 49 -26 24 38 -26 44 29 0.45 -113 0 0 -27 1 53 14 2 31.4 3 298 17 -26 56 37 -27 7 8 -26 51 58 -27 11 49 0.45 -112 0 0 -27 29 5 14 2 30.8 2 298 18 -27 23 49 -27 34 20 -27 19 10 -27 39 0 0.46 -111 0 0 -27 56 8 14 2 30.4 1 297 18 -27 50 53 -28 1 23 -27 46 13 -28 6 4 0.47 -110 0 0 -28 23 2 14 2 30.3 0 297 19 -28 17 47 -28 28 18 -28 13 8 -28 32 58 0.57 Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 15.8 Data for the target star ------------------------ * name: TYC 1926-00385-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 58 37.6177 DE: +23 24 56.814 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 58 37.6178 DE: +23 24 56.814 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.1 * B mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (16565) 1992 CZ1 asteroid class: approx. diameter [km]: 16 approx. diameter ["]: 0.011 distance from Earth [AU]: 1.94930 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 date of fit: 2023 Feb 10 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): 0.034", 0.003", 104.921° remarks: * orbital elements for (16565)1992 CZ1 : Mean anomaly = 320.1338679494 deg Arg. of pericenter = 198.3551664219 deg Long. of node = 321.0120773374 deg Inclination = 3.5242002897 deg Eccentricity = 0.1197336688 Semimajor axis = 3.1520200455 AU Perihelion dist = 2.7746171215 AU Mag: H = 12.81, G = 0.15 Epoch of elements : MJD 60670.59196912 TDT (2024 Dec 26.5920) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Feb10,1.60,2024,12,26,14.207179,-0.057323,-0.380105,-5.514117,0.829718,-0.002285,0.000198,0.000001,0.000000 171.3584,23.3475,-32.90,-23.33,False TYC 1926-00385-1,7.97711602,23.4157818,11.49,11.07,10.84,0.0,0,,8.00233915,23.3474792,6.03,5.81,0,0,0 16565,1992 CZ1,17.10,15.854,1.9493,0,0,-1.806,3.74,,1.6,0 0,320.0296,2024,12,26,198.3552,321.0121,3.5242,0.11973,3.15202,2.77462,12.81,5.0,0.15 1.444,0.0337,0.0033,105,0.0050,Known errors,0.95,0,-1,-1 20241226_0385-1,60140.76 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 18:08 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org