IOTA/IOTA-ES occultation update for (1878) Hughes / TYC 5784-00037-1 event on 2024 Nov 21, 11:32 UT Visible from Summary ------- On 2024 Nov 21 UT, the 12.358 km diameter asteroid (1878) Hughes will occult a 11.1 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.36 mag to 17.47 mag (the magnitude of the asteroid) for at most 0.530 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: 98 * date and approx. time of event: 2024 Nov 21, 11:27 - 2024 Nov 21, 11:36 * geocentric midpoint of event [JD]: 2460635.98069875 * magnitude of target star: 11.11 * magnitude drop [mag]: 6.36 * estimated maximum duration [s]: 0.530 * Moon: 66 % sunlit, 172° distance * Sun: 77° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 0.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.010, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.010", 0.002", 73°) * approx speed of asteroid's shadow [km/s]: 23.3786 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5784-00037-1 by 1878 Hughes on 2024 Nov 21 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 - 4 0 0 .. .. .... .. .. .. .. .. .. - 1 9 17 - 1 2 8 - 1 11 48 - 0 59 36 .... - 3 0 0 - 1 21 34 11 27 48.0 1 105 70 - 1 25 9 - 1 18 0 - 1 27 40 - 1 15 29 .... - 2 0 0 - 1 37 7 11 27 48.1 2 105 70 - 1 40 41 - 1 33 33 - 1 43 12 - 1 31 2 -0.15 - 1 0 0 - 1 52 21 11 27 48.4 3 105 71 - 1 55 54 - 1 48 47 - 1 58 25 - 1 46 16 -0.18 0 0 0 - 2 7 14 11 27 48.7 4 105 71 - 2 10 48 - 2 3 41 - 2 13 18 - 2 1 10 -0.20 1 0 0 - 2 21 48 11 27 49.1 5 105 72 - 2 25 21 - 2 18 15 - 2 27 52 - 2 15 45 -0.21 2 0 0 - 2 36 2 11 27 49.6 6 105 72 - 2 39 35 - 2 32 29 - 2 42 5 - 2 29 59 -0.22 3 0 0 - 2 49 55 11 27 50.2 7 105 73 - 2 53 28 - 2 46 22 - 2 55 58 - 2 43 52 -0.22 4 0 0 - 3 3 28 11 27 50.9 8 105 73 - 3 7 0 - 2 59 55 - 3 9 30 - 2 57 25 -0.23 5 0 0 - 3 16 39 11 27 51.7 9 105 73 - 3 20 11 - 3 13 7 - 3 22 41 - 3 10 37 -0.23 6 0 0 - 3 29 30 11 27 52.5 10 105 73 - 3 33 2 - 3 25 58 - 3 35 31 - 3 23 28 -0.23 7 0 0 - 3 41 59 11 27 53.5 11 104 73 - 3 45 31 - 3 38 28 - 3 48 0 - 3 35 58 -0.23 8 0 0 - 3 54 7 11 27 54.5 12 104 73 - 3 57 39 - 3 50 36 - 4 0 8 - 3 48 7 -0.24 9 0 0 - 4 5 54 11 27 55.7 13 104 73 - 4 9 25 - 4 2 23 - 4 11 54 - 3 59 54 -0.24 10 0 0 - 4 17 19 11 27 56.9 14 104 73 - 4 20 50 - 4 13 48 - 4 23 18 - 4 11 19 -0.24 11 0 0 - 4 28 21 11 27 58.2 15 104 73 - 4 31 52 - 4 24 51 - 4 34 21 - 4 22 22 -0.24 12 0 0 - 4 39 2 11 27 59.5 16 104 73 - 4 42 33 - 4 35 31 - 4 45 1 - 4 33 3 -0.24 13 0 0 - 4 49 21 11 28 1.0 18 104 73 - 4 52 51 - 4 45 50 - 4 55 19 - 4 43 22 -0.24 14 0 0 - 4 59 17 11 28 2.5 19 104 72 - 5 2 47 - 4 55 46 - 5 5 15 - 4 53 18 -0.24 15 0 0 - 5 8 50 11 28 4.2 20 104 72 - 5 12 20 - 5 5 20 - 5 14 48 - 5 2 52 -0.24 16 0 0 - 5 18 1 11 28 5.9 21 104 71 - 5 21 31 - 5 14 31 - 5 23 59 - 5 12 3 -0.24 17 0 0 - 5 26 49 11 28 7.7 22 104 71 - 5 30 19 - 5 23 20 - 5 32 47 - 5 20 52 -0.24 18 0 0 - 5 35 15 11 28 9.5 23 104 70 - 5 38 44 - 5 31 45 - 5 41 12 - 5 29 17 -0.25 19 0 0 - 5 43 17 11 28 11.5 24 104 70 - 5 46 46 - 5 39 48 - 5 49 14 - 5 37 20 -0.25 20 0 0 - 5 50 56 11 28 13.5 25 104 69 - 5 54 25 - 5 47 27 - 5 56 53 - 5 45 0 -0.25 21 0 0 - 5 58 12 11 28 15.6 26 104 69 - 6 1 41 - 5 54 43 - 6 4 8 - 5 52 16 -0.25 22 0 0 - 6 5 5 11 28 17.8 27 104 68 - 6 8 34 - 6 1 36 - 6 11 1 - 5 59 9 -0.25 23 0 0 - 6 11 34 11 28 20.1 28 104 67 - 6 15 3 - 6 8 6 - 6 17 30 - 6 5 39 -0.25 24 0 0 - 6 17 40 11 28 22.4 29 104 66 - 6 21 9 - 6 14 12 - 6 23 36 - 6 11 45 -0.25 25 0 0 - 6 23 23 11 28 24.8 30 104 66 - 6 26 51 - 6 19 54 - 6 29 18 - 6 17 27 -0.25 26 0 0 - 6 28 42 11 28 27.3 31 104 65 - 6 32 10 - 6 25 13 - 6 34 37 - 6 22 46 -0.25 27 0 0 - 6 33 37 11 28 29.8 32 103 64 - 6 37 5 - 6 30 8 - 6 39 32 - 6 27 42 -0.25 28 0 0 - 6 38 8 11 28 32.5 33 103 63 - 6 41 36 - 6 34 40 - 6 44 3 - 6 32 13 -0.25 29 0 0 - 6 42 16 11 28 35.2 34 103 63 - 6 45 44 - 6 38 48 - 6 48 10 - 6 36 21 -0.25 30 0 0 - 6 45 59 11 28 37.9 35 103 62 - 6 49 27 - 6 42 31 - 6 51 54 - 6 40 5 -0.25 31 0 0 - 6 49 19 11 28 40.8 36 103 61 - 6 52 47 - 6 45 51 - 6 55 13 - 6 43 25 -0.25 32 0 0 - 6 52 15 11 28 43.7 37 103 60 - 6 55 43 - 6 48 47 - 6 58 9 - 6 46 21 -0.25 33 0 0 - 6 54 47 11 28 46.7 38 104 59 - 6 58 14 - 6 51 19 - 7 0 41 - 6 48 52 -0.25 34 0 0 - 6 56 54 11 28 49.7 38 104 58 - 7 0 22 - 6 53 27 - 7 2 48 - 6 51 0 -0.25 35 0 0 - 6 58 38 11 28 52.8 39 104 57 - 7 2 6 - 6 55 10 - 7 4 32 - 6 52 44 -0.25 36 0 0 - 6 59 58 11 28 56.0 40 104 57 - 7 3 25 - 6 56 30 - 7 5 51 - 6 54 3 -0.25 37 0 0 - 7 0 53 11 28 59.2 41 104 56 - 7 4 20 - 6 57 25 - 7 6 47 - 6 54 59 -0.25 38 0 0 - 7 1 24 11 29 2.5 42 104 55 - 7 4 52 - 6 57 56 - 7 7 18 - 6 55 30 -0.25 39 0 0 - 7 1 31 11 29 5.9 43 104 54 - 7 4 58 - 6 58 3 - 7 7 25 - 6 55 37 -0.25 40 0 0 - 7 1 14 11 29 9.3 44 104 53 - 7 4 41 - 6 57 46 - 7 7 8 - 6 55 20 -0.25 41 0 0 - 7 0 32 11 29 12.8 45 104 52 - 7 4 0 - 6 57 4 - 7 6 26 - 6 54 38 -0.25 42 0 0 - 6 59 26 11 29 16.4 46 104 51 - 7 2 54 - 6 55 59 - 7 5 20 - 6 53 32 -0.25 43 0 0 - 6 57 56 11 29 20.0 47 104 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3 55 7 16 32 -0.25 107 0 0 7 33 4 11 34 18.0 58 225 -16 7 29 22 7 36 46 7 26 45 7 39 23 -0.25 108 0 0 7 56 3 11 34 22.5 57 226 -17 7 52 21 7 59 45 7 49 44 8 2 22 -0.25 109 0 0 8 19 11 11 34 27.0 56 226 -18 8 15 28 8 22 53 8 12 51 8 25 30 -0.25 110 0 0 8 42 26 11 34 31.3 55 227 -19 8 38 44 8 46 9 8 36 7 8 48 46 -0.25 111 0 0 9 5 49 11 34 35.7 54 228 -20 9 2 6 9 9 32 8 59 29 9 12 9 -0.25 112 0 0 9 29 18 11 34 40.0 53 229 -21 9 25 35 9 33 1 9 22 58 9 35 39 -0.25 113 0 0 9 52 54 11 34 44.2 52 229 -22 9 49 11 9 56 37 9 46 33 9 59 14 -0.25 114 0 0 10 16 34 11 34 48.3 51 230 -23 10 12 51 10 20 18 10 10 14 10 22 55 -0.25 115 0 0 10 40 20 11 34 52.4 50 230 -24 10 36 36 10 44 3 10 33 59 10 46 41 -0.25 116 0 0 11 4 9 11 34 56.5 49 231 -25 11 0 26 11 7 53 10 57 48 11 10 31 -0.25 117 0 0 11 28 2 11 35 0.4 48 232 -26 11 24 19 11 31 46 11 21 41 11 34 24 -0.25 118 0 0 11 51 59 11 35 4.3 47 232 -28 11 48 15 11 55 42 11 45 37 11 58 20 -0.25 119 0 0 12 15 57 11 35 8.2 46 233 -29 12 12 13 12 19 41 12 9 35 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239 -42 17 22 44 17 30 12 17 20 7 17 32 50 -0.25 133 0 0 17 49 55 11 35 53.8 32 239 -43 17 46 11 17 53 39 17 43 34 17 56 17 -0.25 134 0 0 18 13 16 11 35 56.5 31 239 -44 18 9 32 18 16 59 18 6 54 18 19 37 -0.25 135 0 0 18 36 29 11 35 59.0 30 240 -45 18 32 46 18 40 13 18 30 8 18 42 50 -0.25 136 0 0 18 59 35 11 36 1.5 29 240 -46 18 55 52 19 3 18 18 53 14 19 5 56 -0.25 137 0 0 19 22 33 11 36 3.9 28 241 -47 19 18 49 19 26 16 19 16 12 19 28 53 -0.25 138 0 0 19 45 21 11 36 6.2 27 241 -48 19 41 38 19 49 5 19 39 1 19 51 42 -0.25 139 0 0 20 8 1 11 36 8.4 26 241 -49 20 4 18 20 11 44 20 1 41 20 14 22 -0.25 140 0 0 20 30 31 11 36 10.5 25 242 -50 20 26 49 20 34 14 20 24 11 20 36 52 -0.25 141 0 0 20 52 52 11 36 12.6 24 242 -51 20 49 9 20 56 34 20 46 32 20 59 11 -0.25 142 0 0 21 15 1 11 36 14.5 23 243 -52 21 11 19 21 18 44 21 8 42 21 21 21 -0.25 143 0 0 21 37 0 11 36 16.4 22 243 -53 21 33 17 21 40 42 21 30 41 21 43 19 -0.25 144 0 0 21 58 47 11 36 18.2 21 243 -54 21 55 5 22 2 29 21 52 28 22 5 6 -0.25 145 0 0 22 20 22 11 36 19.9 20 244 -55 22 16 40 22 24 4 22 14 4 22 26 41 -0.25 146 0 0 22 41 45 11 36 21.5 19 244 -56 22 38 3 22 45 27 22 35 27 22 48 3 -0.25 147 0 0 23 2 56 11 36 23.0 18 245 -57 22 59 14 23 6 37 22 56 38 23 9 13 -0.25 148 0 0 23 23 53 11 36 24.4 17 245 -58 23 20 12 23 27 34 23 17 36 23 30 10 -0.25 149 0 0 23 44 37 11 36 25.8 16 246 -59 23 40 56 23 48 18 23 38 20 23 50 54 -0.25 150 0 0 24 5 7 11 36 27.1 15 246 -60 24 1 26 24 8 48 23 58 51 24 11 24 -0.25 151 0 0 24 25 23 11 36 28.2 14 246 -61 24 21 43 24 29 4 24 19 7 24 31 40 -0.25 152 0 0 24 45 25 11 36 29.3 13 247 -62 24 41 45 24 49 6 24 39 9 24 51 41 -0.25 153 0 0 25 5 12 11 36 30.4 12 247 -62 25 1 32 25 8 52 24 58 57 25 11 28 -0.25 154 0 0 25 24 44 11 36 31.3 11 248 -63 25 21 5 25 28 24 25 18 30 25 30 59 -0.25 155 0 0 25 44 1 11 36 32.1 10 248 -64 25 40 22 25 47 41 25 37 47 25 50 16 -0.25 156 0 0 26 3 2 11 36 32.9 9 249 -65 25 59 23 26 6 42 25 56 49 26 9 17 -0.25 157 0 0 26 21 48 11 36 33.6 8 249 -66 26 18 9 26 25 27 26 15 34 26 28 1 -0.25 158 0 0 26 40 17 11 36 34.2 7 249 -67 26 36 39 26 43 56 26 34 4 26 46 30 -0.25 159 0 0 26 58 30 11 36 34.7 6 250 -67 26 54 52 27 2 9 26 52 18 27 4 43 -0.25 160 0 0 27 16 27 11 36 35.2 5 250 -68 27 12 49 27 20 5 27 10 15 27 22 39 -0.25 161 0 0 27 34 7 11 36 35.6 4 251 -69 27 30 29 27 37 45 27 27 55 27 40 18 -0.25 162 0 0 27 51 30 11 36 35.9 3 251 -70 27 47 52 27 55 7 27 45 19 27 57 41 -0.25 163 0 0 28 8 35 11 36 36.1 2 252 -71 28 4 58 28 12 13 28 2 25 28 14 46 -0.25 164 0 0 28 25 24 11 36 36.3 1 252 -71 28 21 47 28 29 1 28 19 14 28 31 34 -0.25 165 0 0 28 41 55 11 36 36.3 1 253 -72 28 38 18 28 45 32 28 35 46 28 48 5 -0.26 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5784-00037-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 21 15 02.3284 DE: -14 59 13.858 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 21 15 02.3283 DE: -14 59 13.859 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.1 * B mag [mag]: 11.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1878) Hughes asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.006 distance from Earth [AU]: 2.92780 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#49 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): 0.010", 0.002", 72.656° remarks: * orbital elements for (1878)Hughes : Mean anomaly = 213.9593177905 deg Arg. of pericenter = 295.2920144705 deg Long. of node = 187.7586890616 deg Inclination = 1.7832973406 deg Eccentricity = 0.0135435712 Semimajor axis = 2.8444760405 AU Perihelion dist = 2.8059516768 AU Mag: H = 11.86, G = 0.15 Epoch of elements : MJD 60635.48069841 TDT (2024 Nov 21.4807) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#492023Apr24,0.53,2024,11,21,11.536770,-0.065537,0.238903,12.719033,3.513954,0.005504,0.001754,0.000000,0.000000 85.0886,-14.8848,3.44,-20.08,False TYC 5784-00037-1,21.25064682,-14.9871828,11.34,11.11,10.99,0.0,0,,21.27343285,-14.8847970,6.37,6.04,0,0,0 1878,Hughes,17.47,12.358,2.9278,0,0,2.636,10.56,,1.0,0 0,213.8606,2024,11,21,295.2920,187.7587,1.7833,0.01354,2.84448,2.80595,11.86,5.0,0.15 1.353,0.0100,0.0020,73,0.0021,Known errors,0.98,0,-1,-1 20241121_0037-1,60140.71 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org