IOTA/IOTA-ES occultation update for (254) Augusta / TYC 1890-00451-1 event on 2024 Dec 01, 13:37 UT Visible from Summary ------- On 2024 Dec 01 UT, the 12.238 km diameter asteroid (254) Augusta will occult a 10.4 mag star in the constellation Auriga for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.90 mag to 15.25 mag (the magnitude of the asteroid) for at most 1.210 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 Dec 01, 13:28 - 2024 Dec 01, 13:46 * geocentric midpoint of event [JD]: 2460646.06772067 * magnitude of target star: 10.36 * magnitude drop [mag]: 4.90 * estimated maximum duration [s]: 1.210 * Moon: 0 % sunlit, 158° distance * Sun: 154° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 14 * 1 sigma uncertainty interval [path widths]: +/- 0.34 * 1 sigma uncertainty interval [seconds]: +/- 1.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.002", 91°) * approx speed of asteroid's shadow [km/s]: 10.1017 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1890-00451-1 by 254 Augusta on 2024 Dec 1 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 96 0 0 -13 36 10 13 46 48.1 0 60 -26 -13 31 46 -13 40 34 -13 28 49 -13 43 32 .... 97 0 0 -13 2 9 13 46 48.0 1 59 -27 -12 57 46 -13 6 32 -12 54 50 -13 9 29 0.18 98 0 0 -12 28 37 13 46 47.5 2 59 -28 -12 24 15 -12 32 59 -12 21 19 -12 35 55 0.36 99 0 0 -11 55 33 13 46 46.8 4 59 -29 -11 51 13 -11 59 54 -11 48 18 -12 2 50 0.42 100 0 0 -11 23 0 13 46 45.8 5 59 -30 -11 18 40 -11 27 20 -11 15 46 -11 30 14 0.45 101 0 0 -10 50 57 13 46 44.5 6 59 -31 -10 46 38 -10 55 16 -10 43 45 -10 58 9 0.47 102 0 0 -10 19 25 13 46 43.0 7 58 -32 -10 15 7 -10 23 43 -10 12 14 -10 26 36 0.49 103 0 0 - 9 48 24 13 46 41.2 8 58 -34 - 9 44 8 - 9 52 41 - 9 41 16 - 9 55 33 0.50 104 0 0 - 9 17 56 13 46 39.2 9 58 -35 - 9 13 41 - 9 22 12 - 9 10 49 - 9 25 3 0.50 105 0 0 - 8 48 0 13 46 36.9 10 58 -36 - 8 43 46 - 8 52 15 - 8 40 56 - 8 55 6 0.51 106 0 0 - 8 18 38 13 46 34.4 11 58 -37 - 8 14 25 - 8 22 51 - 8 11 35 - 8 25 42 0.51 107 0 0 - 7 49 49 13 46 31.6 12 58 -38 - 7 45 36 - 7 54 1 - 7 42 47 - 7 56 51 0.52 108 0 0 - 7 21 33 13 46 28.6 13 57 -39 - 7 17 22 - 7 25 44 - 7 14 33 - 7 28 33 0.52 109 0 0 - 6 53 52 13 46 25.3 15 57 -40 - 6 49 41 - 6 58 2 - 6 46 54 - 7 0 50 0.52 110 0 0 - 6 26 45 13 46 21.8 16 57 -41 - 6 22 36 - 6 30 54 - 6 19 48 - 6 33 42 0.52 111 0 0 - 6 0 13 13 46 18.1 17 57 -42 - 5 56 5 - 6 4 21 - 5 53 18 - 6 7 8 0.53 112 0 0 - 5 34 16 13 46 14.2 18 57 -43 - 5 30 8 - 5 38 23 - 5 27 22 - 5 41 9 0.53 113 0 0 - 5 8 54 13 46 10.0 19 57 -44 - 5 4 47 - 5 13 0 - 5 2 2 - 5 15 46 0.53 114 0 0 - 4 44 7 13 46 5.7 20 56 -45 - 4 40 2 - 4 48 13 - 4 37 17 - 4 50 58 0.53 115 0 0 - 4 19 56 13 46 1.1 21 56 -46 - 4 15 51 - 4 24 1 - 4 13 7 - 4 26 45 0.53 116 0 0 - 3 56 20 13 45 56.3 22 56 -47 - 3 52 17 - 4 0 24 - 3 49 33 - 4 3 8 0.53 117 0 0 - 3 33 21 13 45 51.3 23 56 -48 - 3 29 18 - 3 37 24 - 3 26 35 - 3 40 7 0.53 118 0 0 - 3 10 57 13 45 46.2 24 56 -49 - 3 6 55 - 3 14 59 - 3 4 13 - 3 17 42 0.53 119 0 0 - 2 49 9 13 45 40.8 25 56 -50 - 2 45 8 - 2 53 10 - 2 42 26 - 2 55 52 0.53 120 0 0 - 2 27 57 13 45 35.2 26 55 -51 - 2 23 57 - 2 31 58 - 2 21 16 - 2 34 39 0.53 121 0 0 - 2 7 22 13 45 29.5 27 55 -52 - 2 3 22 - 2 11 21 - 2 0 41 - 2 14 2 0.53 122 0 0 - 1 47 22 13 45 23.6 28 55 -53 - 1 43 23 - 1 51 21 - 1 40 43 - 1 54 1 0.53 123 0 0 - 1 27 59 13 45 17.5 29 55 -54 - 1 24 1 - 1 31 57 - 1 21 21 - 1 34 37 0.53 124 0 0 - 1 9 11 13 45 11.2 30 55 -55 - 1 5 14 - 1 13 9 - 1 2 35 - 1 15 48 0.53 125 0 0 - 0 51 0 13 45 4.8 31 55 -56 - 0 47 4 - 0 54 57 - 0 44 25 - 0 57 36 0.53 126 0 0 - 0 33 25 13 44 58.2 32 54 -57 - 0 29 30 - 0 37 21 - 0 26 51 - 0 40 0 0.53 127 0 0 - 0 16 26 13 44 51.5 33 54 -58 - 0 12 31 - 0 20 21 - 0 9 53 - 0 22 59 0.53 128 0 0 - 0 0 3 13 44 44.6 34 54 -59 0 3 52 - 0 3 58 0 6 29 - 0 6 35 0.53 129 0 0 0 15 44 13 44 37.6 35 54 -59 0 19 38 0 11 50 0 22 15 0 9 13 0.53 130 0 0 0 30 55 13 44 30.4 36 53 -60 0 34 48 0 27 1 0 37 24 0 24 25 0.53 131 0 0 0 45 29 13 44 23.0 36 53 -61 0 49 22 0 41 37 0 51 58 0 39 0 0.53 132 0 0 0 59 28 13 44 15.6 37 53 -62 1 3 21 0 55 36 1 5 56 0 53 0 0.53 133 0 0 1 12 52 13 44 8.0 38 53 -63 1 16 43 1 9 0 1 19 18 1 6 24 0.53 134 0 0 1 25 39 13 44 0.2 39 52 -63 1 29 30 1 21 48 1 32 5 1 19 12 0.53 135 0 0 1 37 50 13 43 52.4 40 52 -64 1 41 41 1 34 0 1 44 16 1 31 25 0.53 136 0 0 1 49 26 13 43 44.4 41 52 -65 1 53 17 1 45 36 1 55 51 1 43 2 0.53 137 0 0 2 0 27 13 43 36.3 42 51 -66 2 4 17 1 56 37 2 6 51 1 54 3 0.53 138 0 0 2 10 52 13 43 28.1 43 51 -66 2 14 41 2 7 2 2 17 15 2 4 28 0.53 139 0 0 2 20 41 13 43 19.7 44 50 -67 2 24 30 2 16 52 2 27 3 2 14 18 0.53 140 0 0 2 29 55 13 43 11.3 44 50 -68 2 33 44 2 26 6 2 36 17 2 23 33 0.53 141 0 0 2 38 34 13 43 2.7 45 49 -68 2 42 22 2 34 46 2 44 55 2 32 12 0.53 142 0 0 2 46 37 13 42 54.0 46 49 -69 2 50 25 2 42 49 2 52 58 2 40 16 0.53 143 0 0 2 54 6 13 42 45.3 47 48 -69 2 57 53 2 50 18 3 0 26 2 47 45 0.53 144 0 0 3 0 59 13 42 36.4 48 48 -70 3 4 46 2 57 11 3 7 18 2 54 39 0.53 145 0 0 3 7 17 13 42 27.4 48 47 -70 3 11 4 3 3 30 3 13 36 3 0 57 0.53 146 0 0 3 13 0 13 42 18.4 49 47 -70 3 16 47 3 9 13 3 19 19 3 6 41 0.53 147 0 0 3 18 8 13 42 9.2 50 46 -71 3 21 55 3 14 22 3 24 27 3 11 49 0.53 148 0 0 3 22 41 13 42 0.0 51 45 -71 3 26 28 3 18 55 3 29 0 3 16 23 0.53 149 0 0 3 26 40 13 41 50.6 51 45 -71 3 30 26 3 22 54 3 32 58 3 20 22 0.53 150 0 0 3 30 4 13 41 41.2 52 44 -71 3 33 50 3 26 18 3 36 21 3 23 46 0.53 151 0 0 3 32 53 13 41 31.7 53 43 -72 3 36 39 3 29 7 3 39 10 3 26 35 0.53 152 0 0 3 35 7 13 41 22.2 53 42 -72 3 38 53 3 31 21 3 41 24 3 28 49 0.53 153 0 0 3 36 47 13 41 12.5 54 41 -72 3 40 32 3 33 1 3 43 4 3 30 29 0.53 154 0 0 3 37 52 13 41 2.8 55 40 -72 3 41 38 3 34 6 3 44 9 3 31 35 0.53 155 0 0 3 38 23 13 40 53.0 55 39 -71 3 42 8 3 34 37 3 44 39 3 32 5 0.53 156 0 0 3 38 19 13 40 43.1 56 38 -71 3 42 4 3 34 33 3 44 35 3 32 1 0.53 157 0 0 3 37 40 13 40 33.2 57 37 -71 3 41 26 3 33 54 3 43 57 3 31 23 0.53 158 0 0 3 36 27 13 40 23.2 57 36 -71 3 40 13 3 32 42 3 42 44 3 30 10 0.53 159 0 0 3 34 40 13 40 13.1 58 35 -70 3 38 26 3 30 54 3 40 57 3 28 23 0.53 160 0 0 3 32 18 13 40 3.0 58 34 -70 3 36 4 3 28 32 3 38 35 3 26 1 0.53 161 0 0 3 29 22 13 39 52.9 59 32 -70 3 33 8 3 25 36 3 35 39 3 23 4 0.53 162 0 0 3 25 52 13 39 42.6 59 31 -69 3 29 38 3 22 5 3 32 9 3 19 34 0.53 163 0 0 3 21 47 13 39 32.4 59 30 -69 3 25 33 3 18 0 3 28 4 3 15 29 0.53 164 0 0 3 17 7 13 39 22.0 60 28 -68 3 20 54 3 13 21 3 23 25 3 10 49 0.53 165 0 0 3 11 54 13 39 11.6 60 27 -68 3 15 40 3 8 7 3 18 12 3 5 35 0.53 166 0 0 3 6 6 13 39 1.2 61 25 -67 3 9 53 3 2 19 3 12 25 2 59 47 0.53 167 0 0 2 59 44 13 38 50.8 61 24 -66 3 3 30 2 55 57 3 6 3 2 53 24 0.53 168 0 0 2 52 47 13 38 40.3 61 22 -66 2 56 34 2 49 0 2 59 6 2 46 27 0.53 169 0 0 2 45 16 13 38 29.7 61 20 -65 2 49 3 2 41 28 2 51 36 2 38 56 0.53 170 0 0 2 37 11 13 38 19.1 62 19 -64 2 40 58 2 33 23 2 43 31 2 30 50 0.53 171 0 0 2 28 31 13 38 8.5 62 17 -64 2 32 19 2 24 43 2 34 52 2 22 10 0.53 172 0 0 2 19 17 13 37 57.9 62 15 -63 2 23 5 2 15 28 2 25 38 2 12 55 0.53 173 0 0 2 9 29 13 37 47.2 62 13 -62 2 13 17 2 5 40 2 15 51 2 3 6 0.53 174 0 0 1 59 6 13 37 36.5 62 12 -61 2 2 55 1 55 16 2 5 28 1 52 43 0.53 175 0 0 1 48 9 13 37 25.8 62 10 -61 1 51 58 1 44 19 1 54 32 1 41 45 0.53 176 0 0 1 36 37 13 37 15.1 62 8 -60 1 40 27 1 32 47 1 43 1 1 30 13 0.53 177 0 0 1 24 31 13 37 4.4 62 6 -59 1 28 22 1 20 41 1 30 56 1 18 6 0.53 178 0 0 1 11 51 13 36 53.6 62 5 -58 1 15 42 1 8 0 1 18 17 1 5 25 0.53 179 0 0 0 58 36 13 36 42.8 62 3 -57 1 2 28 0 54 45 1 5 3 0 52 10 0.53 -180 0 0 0 44 47 13 36 32.1 61 1 -56 0 48 39 0 40 55 0 51 15 0 38 20 0.53 -179 0 0 0 30 24 13 36 21.3 61 359 -55 0 34 16 0 26 32 0 36 52 0 23 55 0.53 -178 0 0 0 15 26 13 36 10.5 61 358 -55 0 19 19 0 11 33 0 21 55 0 8 57 0.53 -177 0 0 - 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Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 1890-00451-1 * constellation : Auriga * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 20 41.9519 DE: +29 23 12.849 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 20 41.9519 DE: +29 23 12.849 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 10.4 * B mag [mag]: 10.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (254) Augusta asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.011 distance from Earth [AU]: 1.53560 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 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): 0.015", 0.002", 90.8° remarks: * orbital elements for (254)Augusta : Mean anomaly = 183.6526736691 deg Arg. of pericenter = 233.5581620590 deg Long. of node = 28.3986710892 deg Inclination = 4.5076887757 deg Eccentricity = 0.1211689470 Semimajor axis = 2.1958686175 AU Perihelion dist = 1.9297975293 AU Mag: H = 11.72, G = 0.15 Epoch of elements : MJD 60645.56772179 TDT (2024 Dec 01.5677) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr24,1.21,2024,12,1,13.625296,-0.100692,-0.459191,-5.569396,1.221043,-0.002484,-0.000456,0.000001,0.000000 -179.7057,29.3758,-27.07,-21.93,False TYC 1890-00451-1,6.34498663,29.3869024,10.52,10.36,10.27,0.0,0,,6.37182058,29.3758453,4.91,4.55,0,0,0 254,Augusta,15.25,12.238,1.5356,0,0,-2.440,6.99,,0.6,0 0,183.4807,2024,12,1,233.5582,28.3987,4.5077,0.12117,2.19587,1.92980,11.72,5.0,0.15 1.335,0.0150,0.0022,91,0.0037,Known errors,1.29,0,-1,-1 20241201_0451-1,60140.72 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:19 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org