IOTA/IOTA-ES occultation update for (19744) 2000 AC176 / TYC 6296-00568-1 event on 2024 Nov 05, 22:27 UT Visible from Summary ------- On 2024 Nov 05 UT, the 10.992641177017 km diameter asteroid (19744) 2000 AC176 will occult a 8.1 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 10.47 mag to 18.60 mag (the magnitude of the asteroid) for at most 0.350 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: 90 * date and approx. time of event: 2024 Nov 05, 22:24 - 2024 Nov 05, 22:30 * geocentric midpoint of event [JD]: 2460620.43587367 * magnitude of target star: 8.13 * magnitude drop [mag]: 10.47 * estimated maximum duration [s]: 0.350 * Moon: 17 % sunlit, 19° distance * Sun: 65° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 11 * 1 sigma uncertainty interval [path widths]: +/- 0.52 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.003", 85°) * approx speed of asteroid's shadow [km/s]: 32.5274 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6296-00568-1 by 19744 2000 AC176 on 2024 Nov 5 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 -180 0 0 5 5 59 22 24 25.0 1 106 61 5 2 45 5 9 14 4 59 24 5 12 35 .... -179 0 0 4 48 25 22 24 25.1 2 106 62 4 45 11 4 51 40 4 41 50 4 55 1 -0.04 -178 0 0 4 30 54 22 24 25.2 3 107 63 4 27 39 4 34 8 4 24 18 4 37 29 -0.07 -177 0 0 4 13 25 22 24 25.4 4 107 64 4 10 11 4 16 40 4 6 50 4 20 1 -0.08 -176 0 0 3 56 1 22 24 25.7 5 107 65 3 52 46 3 59 15 3 49 25 4 2 36 -0.09 -175 0 0 3 38 40 22 24 26.1 6 107 65 3 35 25 3 41 54 3 32 5 3 45 15 -0.10 -174 0 0 3 21 23 22 24 26.5 7 107 66 3 18 9 3 24 37 3 14 48 3 27 58 -0.10 -173 0 0 3 4 11 22 24 27.0 8 107 67 3 0 57 3 7 25 2 57 36 3 10 46 -0.10 -172 0 0 2 47 4 22 24 27.5 9 107 68 2 43 50 2 50 18 2 40 29 2 53 39 -0.11 -171 0 0 2 30 2 22 24 28.1 10 107 69 2 26 48 2 33 16 2 23 27 2 36 37 -0.11 -170 0 0 2 13 6 22 24 28.8 11 107 69 2 9 52 2 16 20 2 6 32 2 19 40 -0.11 -169 0 0 1 56 16 22 24 29.5 12 107 70 1 53 2 1 59 30 1 49 42 2 2 50 -0.11 -168 0 0 1 39 32 22 24 30.3 13 107 71 1 36 18 1 42 46 1 32 58 1 46 6 -0.11 -167 0 0 1 22 55 22 24 31.2 14 107 71 1 19 42 1 26 9 1 16 22 1 29 29 -0.11 -166 0 0 1 6 26 22 24 32.1 15 107 72 1 3 12 1 9 39 0 59 52 1 12 59 -0.11 -165 0 0 0 50 3 22 24 33.1 16 107 72 0 46 50 0 53 17 0 43 30 0 56 37 -0.12 -164 0 0 0 33 49 22 24 34.1 18 107 73 0 30 36 0 37 2 0 27 16 0 40 22 -0.12 -163 0 0 0 17 43 22 24 35.3 19 107 73 0 14 30 0 20 56 0 11 10 0 24 16 -0.12 -162 0 0 0 1 45 22 24 36.4 20 107 74 - 0 1 28 0 4 58 - 0 4 48 0 8 18 -0.12 -161 0 0 - 0 14 4 22 24 37.7 21 107 74 - 0 17 17 - 0 10 51 - 0 20 36 - 0 7 31 -0.12 -160 0 0 - 0 29 44 22 24 39.0 22 107 74 - 0 32 57 - 0 26 31 - 0 36 16 - 0 23 11 -0.12 -159 0 0 - 0 45 14 22 24 40.3 23 107 75 - 0 48 27 - 0 42 1 - 0 51 46 - 0 38 42 -0.12 -158 0 0 - 1 0 35 22 24 41.7 24 107 75 - 1 3 47 - 0 57 22 - 1 7 6 - 0 54 3 -0.12 -157 0 0 - 1 15 45 22 24 43.2 25 107 75 - 1 18 58 - 1 12 33 - 1 22 17 - 1 9 14 -0.12 -156 0 0 - 1 30 45 22 24 44.7 26 107 75 - 1 33 58 - 1 27 33 - 1 37 16 - 1 24 14 -0.12 -155 0 0 - 1 45 35 22 24 46.3 27 107 75 - 1 48 47 - 1 42 22 - 1 52 6 - 1 39 4 -0.12 -154 0 0 - 2 0 13 22 24 47.9 28 107 75 - 2 3 25 - 1 57 1 - 2 6 44 - 1 53 42 -0.12 -153 0 0 - 2 14 40 22 24 49.6 29 107 74 - 2 17 52 - 2 11 28 - 2 21 11 - 2 8 10 -0.12 -152 0 0 - 2 28 56 22 24 51.4 30 107 74 - 2 32 8 - 2 25 44 - 2 35 26 - 2 22 26 -0.12 -151 0 0 - 2 43 0 22 24 53.2 31 107 74 - 2 46 12 - 2 39 48 - 2 49 30 - 2 36 30 -0.12 -150 0 0 - 2 56 52 22 24 55.1 32 107 73 - 3 0 3 - 2 53 40 - 3 3 21 - 2 50 22 -0.12 -149 0 0 - 3 10 31 22 24 57.0 33 107 73 - 3 13 42 - 3 7 19 - 3 17 0 - 3 4 2 -0.12 -148 0 0 - 3 23 58 22 24 59.0 34 107 72 - 3 27 9 - 3 20 46 - 3 30 27 - 3 17 29 -0.12 -147 0 0 - 3 37 12 22 25 1.0 35 107 72 - 3 40 23 - 3 34 1 - 3 43 41 - 3 30 43 -0.12 -146 0 0 - 3 50 13 22 25 3.0 36 107 71 - 3 53 24 - 3 47 2 - 3 56 41 - 3 43 44 -0.12 -145 0 0 - 4 3 0 22 25 5.2 37 107 71 - 4 6 11 - 3 59 49 - 4 9 28 - 3 56 32 -0.12 -144 0 0 - 4 15 34 22 25 7.3 38 107 70 - 4 18 45 - 4 12 24 - 4 22 2 - 4 9 6 -0.12 -143 0 0 - 4 27 55 22 25 9.5 39 107 69 - 4 31 5 - 4 24 44 - 4 34 22 - 4 21 27 -0.12 -142 0 0 - 4 40 1 22 25 11.8 40 107 69 - 4 43 11 - 4 36 50 - 4 46 28 - 4 33 33 -0.12 -141 0 0 - 4 51 53 22 25 14.1 41 107 68 - 4 55 3 - 4 48 43 - 4 58 20 - 4 45 26 -0.12 -140 0 0 - 5 3 31 22 25 16.5 42 107 67 - 5 6 41 - 5 0 20 - 5 9 57 - 4 57 4 -0.12 -139 0 0 - 5 14 54 22 25 18.9 43 107 66 - 5 18 4 - 5 11 43 - 5 21 20 - 5 8 27 -0.12 -138 0 0 - 5 26 2 22 25 21.3 44 107 66 - 5 29 12 - 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28 0 0 2 34 10 22 30 39.2 22 251 -43 2 30 56 2 37 24 2 27 35 2 40 45 -0.12 - 27 0 0 2 51 16 22 30 40.6 21 251 -44 2 48 2 2 54 30 2 44 41 2 57 51 -0.12 - 26 0 0 3 8 28 22 30 41.8 20 251 -45 3 5 13 3 11 42 3 1 53 3 15 3 -0.12 - 25 0 0 3 25 44 22 30 43.0 19 252 -46 3 22 30 3 28 59 3 19 9 3 32 19 -0.12 - 24 0 0 3 43 5 22 30 44.2 18 252 -47 3 39 51 3 46 20 3 36 30 3 49 41 -0.12 - 23 0 0 4 0 30 22 30 45.3 17 252 -48 3 57 16 4 3 45 3 53 55 4 7 6 -0.12 - 22 0 0 4 17 59 22 30 46.3 16 252 -49 4 14 45 4 21 14 4 11 24 4 24 35 -0.12 - 21 0 0 4 35 32 22 30 47.3 15 252 -50 4 32 17 4 38 46 4 28 56 4 42 8 -0.12 - 20 0 0 4 53 7 22 30 48.1 14 252 -51 4 49 53 4 56 22 4 46 32 4 59 43 -0.12 - 19 0 0 5 10 45 22 30 49.0 13 252 -52 5 7 31 5 14 0 5 4 10 5 17 21 -0.12 - 18 0 0 5 28 26 22 30 49.7 12 252 -53 5 25 11 5 31 40 5 21 50 5 35 2 -0.12 - 17 0 0 5 46 8 22 30 50.4 11 252 -54 5 42 53 5 49 23 5 39 32 5 52 44 -0.12 - 16 0 0 6 3 52 22 30 51.1 10 252 -55 6 0 37 6 7 6 5 57 16 6 10 28 -0.12 - 15 0 0 6 21 36 22 30 51.6 9 252 -56 6 18 22 6 24 51 6 15 0 6 28 13 -0.12 - 14 0 0 6 39 22 22 30 52.2 8 253 -57 6 36 7 6 42 37 6 32 46 6 45 58 -0.12 - 13 0 0 6 57 8 22 30 52.6 7 253 -58 6 53 53 7 0 23 6 50 32 7 3 44 -0.12 - 12 0 0 7 14 53 22 30 53.0 6 253 -59 7 11 39 7 18 8 7 8 17 7 21 30 -0.12 - 11 0 0 7 32 39 22 30 53.3 5 253 -60 7 29 24 7 35 54 7 26 3 7 39 15 -0.12 - 10 0 0 7 50 23 22 30 53.5 3 253 -61 7 47 8 7 53 38 7 43 47 7 56 59 -0.11 - 9 0 0 8 8 7 22 30 53.7 2 253 -62 8 4 52 8 11 21 8 1 30 8 14 43 -0.11 - 8 0 0 8 25 48 22 30 53.8 1 253 -63 8 22 33 8 29 3 8 19 12 8 32 24 -0.10 - 7 0 0 8 43 28 22 30 53.9 0 253 -64 8 40 13 8 46 43 8 36 52 8 50 4 -0.02 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 6296-00568-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 15 51.2967 DE: -16 17 59.728 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 15 51.2965 DE: -16 17 59.728 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 8.1 * B mag [mag]: 8.7 * Diameter [mas]: 0.20 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (19744) 2000 AC176 asteroid class: approx. diameter [km]: 11 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.71870 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#43 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): 0.013", 0.003", 85.123° remarks: * orbital elements for (19744)2000 AC176 : Mean anomaly = 39.7118885310 deg Arg. of pericenter = 68.5594363375 deg Long. of node = 190.1332343285 deg Inclination = 7.5315863129 deg Eccentricity = 0.1333211688 Semimajor axis = 2.7208069246 AU Perihelion dist = 2.3580657654 AU Mag: H = 13.44, G = 0.15 Epoch of elements : MJD 60619.93587359 TDT (2024 Nov 05.9359) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#432023Apr25,0.35,2024,11,5,22.460968,-0.003757,0.127736,18.350282,0.577045,0.005107,0.000944,-0.000001,0.000000 -93.2369,-16.2568,-161.01,-16.04,False TYC 6296-00568-1,19.26424913,-16.2999242,8.72,8.13,7.81,0.2,0,,19.28779990,-16.2568305,10.47,10.34,0,0,0 19744,2000 AC176,18.60,11.387,2.7187,0,0,4.123,1.87,,1.0,0 0,39.5064,2024,11,5,68.5594,190.1332,7.5316,0.13332,2.72081,2.35807,13.43,5.0,0.15 1.517,0.0130,0.0029,85,0.0030,Known errors,0.95,0,-1,-1 20241105_0568-1,60140.68 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:24 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org