IOTA/IOTA-ES occultation update for (303) Josephina / UCAC4 597-038214 event on 2023 Feb 14, 09:17 UT Visible from S USA Summary ------- On 2023 Feb 14 UT, the 101.6 km diameter asteroid (303) Josephina will occult a 13.6 mag star in the constellation Gemini for observers along a path across S USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.87 mag to 13.85 mag (the magnitude of the asteroid) for at most 13.960 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: 2023 Feb 14, 09:02 - 2023 Feb 14, 09:32 * geocentric midpoint of event [JD]: 2459989.88744505 * magnitude of target star: 13.63 * magnitude drop [mag]: 0.87 * estimated maximum duration [s]: 13.960 * Moon: 43 % sunlit, 138° distance * Sun: 140° distance * rough path description: S USA The occultation path -------------------- * approximate projected width [km]: 102 * 1 sigma uncertainty interval [path widths]: +/- 0.34 * 1 sigma uncertainty interval [seconds]: +/- 5.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.019) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.019", 99°) * approx speed of asteroid's shadow [km/s]: 7.2774 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 597-038214 by 303 Josephina on 2023 Feb 14 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 100 0 0 .. .. .... .. .. .. .. .. .. -15 30 57 .. .. .. -15 9 32 .. .. .. .... 101 0 0 -15 28 33 9 32 31.3 1 59 31 -14 56 30 -16 0 36 -14 35 1 -16 22 5 .... 102 0 0 -14 53 44 9 32 30.9 2 59 30 -14 21 36 -15 25 52 -14 0 4 -15 47 24 -0.08 103 0 0 -14 18 29 9 32 30.1 3 59 29 -13 46 15 -14 50 42 -13 24 40 -15 12 18 -0.05 104 0 0 -13 42 48 9 32 29.0 4 59 28 -13 10 30 -14 15 6 -12 48 52 -14 36 45 -0.03 105 0 0 -13 6 43 9 32 27.5 5 58 27 -12 34 20 -13 39 6 -12 12 39 -14 0 48 -0.02 106 0 0 -12 30 15 9 32 25.7 7 58 26 -11 57 48 -13 2 42 -11 36 3 -13 24 27 -0.02 107 0 0 -11 53 24 9 32 23.6 8 58 25 -11 20 52 -12 25 55 -10 59 5 -12 47 43 -0.01 108 0 0 -11 16 11 9 32 21.0 9 58 24 -10 43 36 -11 48 47 -10 21 46 -12 10 37 -0.01 109 0 0 -10 38 38 9 32 18.2 10 57 23 -10 5 59 -11 11 18 - 9 44 6 -11 33 11 -0.01 110 0 0 -10 0 46 9 32 14.9 11 57 22 - 9 28 3 -10 33 29 - 9 6 8 -10 55 24 -0.01 111 0 0 - 9 22 35 9 32 11.3 12 57 21 - 8 49 49 - 9 55 22 - 8 27 52 -10 17 19 0.00 112 0 0 - 8 44 7 9 32 7.4 13 57 20 - 8 11 18 - 9 16 57 - 7 49 19 - 9 38 57 0.00 113 0 0 - 8 5 24 9 32 3.0 15 57 19 - 7 32 31 - 8 38 16 - 7 10 30 - 9 0 18 0.00 114 0 0 - 7 26 25 9 31 58.3 16 57 18 - 6 53 30 - 7 59 20 - 6 31 27 - 8 21 24 0.00 115 0 0 - 6 47 13 9 31 53.3 17 57 17 - 6 14 16 - 7 20 11 - 5 52 11 - 7 42 16 0.00 116 0 0 - 6 7 48 9 31 47.9 18 56 16 - 5 34 49 - 6 40 48 - 5 12 42 - 7 2 55 0.00 117 0 0 - 5 28 13 9 31 42.1 19 56 14 - 4 55 11 - 6 1 15 - 4 33 3 - 6 23 23 0.00 118 0 0 - 4 48 27 9 31 36.0 21 56 13 - 4 15 24 - 5 21 31 - 3 53 15 - 5 43 40 0.00 119 0 0 - 4 8 33 9 31 29.6 22 56 12 - 3 35 29 - 4 41 39 - 3 13 19 - 5 3 49 0.00 120 0 0 - 3 28 32 9 31 22.8 23 56 11 - 2 55 26 - 4 1 38 - 2 33 15 - 4 23 50 0.00 121 0 0 - 2 48 25 9 31 15.6 24 56 10 - 2 15 18 - 3 21 32 - 1 53 6 - 3 43 44 0.00 122 0 0 - 2 8 13 9 31 8.1 25 56 9 - 1 35 5 - 2 41 21 - 1 12 53 - 3 3 33 0.00 123 0 0 - 1 27 58 9 31 0.3 26 56 8 - 0 54 49 - 2 1 6 - 0 32 37 - 2 23 19 0.00 124 0 0 - 0 47 40 9 30 52.2 28 56 7 - 0 14 32 - 1 20 49 0 7 40 - 1 43 2 0.00 125 0 0 - 0 7 22 9 30 43.7 29 56 6 0 25 46 - 0 40 31 0 47 59 - 1 2 44 0.00 126 0 0 0 32 55 9 30 34.9 30 56 5 1 6 3 - 0 0 13 1 28 16 - 0 22 25 0.00 127 0 0 1 13 11 9 30 25.8 31 56 4 1 46 19 0 40 3 2 8 31 0 17 51 0.00 128 0 0 1 53 24 9 30 16.5 32 56 2 2 26 31 1 20 17 2 48 42 0 58 5 0.00 129 0 0 2 33 32 9 30 6.8 33 56 1 3 6 38 2 0 26 3 28 49 1 38 15 0.00 130 0 0 3 13 35 9 29 56.8 35 56 0 3 46 40 2 40 30 4 8 49 2 18 20 0.00 131 0 0 3 53 31 9 29 46.6 36 56 -1 4 26 34 3 20 28 4 48 43 2 58 19 0.00 132 0 0 4 33 19 9 29 36.1 37 56 -2 5 6 20 4 0 17 5 28 28 3 38 9 0.00 133 0 0 5 12 58 9 29 25.3 38 56 -3 5 45 57 4 39 58 6 8 4 4 17 51 0.00 134 0 0 5 52 26 9 29 14.3 39 57 -4 6 25 24 5 19 29 6 47 29 4 57 23 0.00 135 0 0 6 31 43 9 29 3.0 40 57 -5 7 4 38 5 58 48 7 26 42 5 36 44 0.00 136 0 0 7 10 48 9 28 51.5 41 57 -6 7 43 40 6 37 55 8 5 42 6 15 53 0.00 137 0 0 7 49 38 9 28 39.8 43 57 -7 8 22 28 7 16 48 8 44 29 6 54 48 0.00 138 0 0 8 28 15 9 28 27.9 44 57 -8 9 1 2 7 55 28 9 23 0 7 33 29 0.00 139 0 0 9 6 35 9 28 15.8 45 57 -9 9 39 19 8 33 51 10 1 15 8 11 55 0.00 140 0 0 9 44 39 9 28 3.5 46 58 -10 10 17 20 9 11 58 10 39 14 8 50 5 0.00 141 0 0 10 22 25 9 27 51.0 47 58 -11 10 55 3 9 49 48 11 16 54 9 27 57 0.00 142 0 0 10 59 53 9 27 38.3 48 58 -12 11 32 27 10 27 19 11 54 16 10 5 30 0.00 143 0 0 11 37 2 9 27 25.5 49 58 -13 12 9 32 11 4 32 12 31 18 10 42 45 0.00 144 0 0 12 13 50 9 27 12.5 50 58 -14 12 46 16 11 41 24 13 8 0 11 19 40 -0.01 145 0 0 12 50 17 9 26 59.3 52 59 -15 13 22 39 12 17 55 13 44 21 11 56 14 -0.01 146 0 0 13 26 23 9 26 46.1 53 59 -16 13 58 41 12 54 5 14 20 19 12 32 27 -0.01 147 0 0 14 2 6 9 26 32.7 54 59 -18 14 34 19 13 29 52 14 55 55 13 8 17 -0.01 148 0 0 14 37 26 9 26 19.2 55 59 -19 15 9 35 14 5 17 15 31 8 13 43 44 -0.01 149 0 0 15 12 22 9 26 5.6 56 60 -19 15 44 26 14 40 17 16 5 56 14 18 48 -0.01 150 0 0 15 46 53 9 25 51.8 57 60 -20 16 18 53 15 14 54 16 40 20 14 53 27 -0.01 151 0 0 16 21 0 9 25 38.1 58 60 -21 16 52 55 15 49 5 17 14 19 15 27 42 -0.01 152 0 0 16 54 41 9 25 24.2 59 61 -22 17 26 32 16 22 51 17 47 52 16 1 31 -0.01 153 0 0 17 27 56 9 25 10.2 60 61 -23 17 59 42 16 56 11 18 20 59 16 34 55 -0.01 154 0 0 18 0 45 9 24 56.2 61 61 -24 18 32 25 17 29 5 18 53 39 17 7 52 -0.01 155 0 0 18 33 6 9 24 42.2 62 62 -25 19 4 42 18 1 31 19 25 52 17 40 22 -0.01 156 0 0 19 5 0 9 24 28.0 63 62 -26 19 36 31 18 33 30 19 57 37 18 12 24 -0.01 157 0 0 19 36 27 9 24 13.9 64 63 -27 20 7 52 19 5 2 20 28 55 18 43 59 -0.01 158 0 0 20 7 25 9 23 59.7 65 63 -28 20 38 45 19 36 5 20 59 45 19 15 6 -0.01 159 0 0 20 37 55 9 23 45.5 66 63 -29 21 9 9 20 6 40 21 30 5 19 45 45 -0.01 160 0 0 21 7 56 9 23 31.3 67 64 -30 21 39 5 20 36 47 21 59 58 20 15 55 -0.01 161 0 0 21 37 28 9 23 17.0 68 64 -31 22 8 31 21 6 24 22 29 21 20 45 36 -0.01 162 0 0 22 6 30 9 23 2.8 69 65 -32 22 37 29 21 35 32 22 58 14 21 14 47 -0.02 163 0 0 22 35 4 9 22 48.6 70 65 -33 23 5 57 22 4 11 23 26 39 21 43 30 -0.02 164 0 0 23 3 7 9 22 34.3 71 66 -33 23 33 55 22 32 20 23 54 33 22 11 42 -0.02 165 0 0 23 30 41 9 22 20.1 72 67 -34 24 1 23 22 59 59 24 21 58 22 39 25 -0.02 166 0 0 23 57 45 9 22 5.9 73 67 -35 24 28 22 23 27 8 24 48 53 23 6 38 -0.02 167 0 0 24 24 19 9 21 51.7 74 68 -36 24 54 50 23 53 48 25 15 18 23 33 21 -0.02 168 0 0 24 50 22 9 21 37.5 75 69 -37 25 20 48 24 19 57 25 41 12 23 59 34 -0.02 169 0 0 25 15 56 9 21 23.4 76 69 -38 25 46 16 24 45 36 26 6 37 24 25 16 -0.02 170 0 0 25 40 59 9 21 9.3 77 70 -39 26 11 14 25 10 44 26 31 31 24 50 28 -0.02 171 0 0 26 5 32 9 20 55.3 78 71 -39 26 35 42 25 35 22 26 55 55 25 15 10 -0.02 172 0 0 26 29 34 9 20 41.3 79 72 -40 26 59 39 25 59 30 27 19 48 25 39 21 -0.02 173 0 0 26 53 6 9 20 27.3 80 73 -41 27 23 6 26 23 7 27 43 11 26 3 2 -0.02 174 0 0 27 16 8 9 20 13.4 81 74 -42 27 46 2 26 46 14 28 6 4 26 26 13 -0.02 175 0 0 27 38 39 9 19 59.5 81 76 -43 28 8 28 27 8 51 28 28 27 26 48 53 -0.02 176 0 0 28 0 40 9 19 45.7 82 77 -43 28 30 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51 33 45 55 32 10 46 -0.02 -107 0 0 32 44 21 9 5 56.5 35 285 -59 33 12 55 32 15 48 33 32 3 31 56 40 -0.01 -106 0 0 32 29 52 9 5 49.1 34 286 -59 32 58 29 32 1 14 33 17 40 31 42 4 -0.01 -105 0 0 32 14 51 9 5 41.9 33 286 -58 32 43 33 31 46 9 33 2 47 31 26 56 -0.01 -104 0 0 31 59 20 9 5 34.8 32 287 -57 32 28 6 31 30 33 32 47 23 31 11 17 -0.01 -103 0 0 31 43 17 9 5 27.8 31 287 -57 32 12 8 31 14 26 32 31 28 30 55 6 -0.01 -102 0 0 31 26 42 9 5 20.9 30 288 -56 31 55 38 30 57 46 32 15 1 30 38 23 -0.01 -101 0 0 31 9 36 9 5 14.2 30 288 -56 31 38 37 30 40 35 31 58 3 30 21 9 -0.01 -100 0 0 30 51 57 9 5 7.6 29 289 -55 31 21 3 30 22 52 31 40 33 30 3 22 -0.01 - 99 0 0 30 33 47 9 5 1.1 28 289 -54 31 2 58 30 4 36 31 22 31 29 45 2 -0.01 - 98 0 0 30 15 3 9 4 54.8 27 290 -54 30 44 20 29 45 47 31 3 57 29 26 11 -0.01 - 97 0 0 29 55 48 9 4 48.7 26 290 -53 30 25 9 29 26 26 30 44 50 29 6 46 -0.01 - 96 0 0 29 35 59 9 4 42.6 25 291 -52 30 5 26 29 6 32 30 25 10 28 46 48 -0.01 - 95 0 0 29 15 37 9 4 36.8 24 291 -52 29 45 10 28 46 4 30 4 57 28 26 16 -0.01 - 94 0 0 28 54 41 9 4 31.1 23 292 -51 29 24 20 28 25 3 29 44 12 28 5 11 -0.01 - 93 0 0 28 33 13 9 4 25.6 22 292 -50 29 2 57 28 3 28 29 22 52 27 43 33 -0.01 - 92 0 0 28 11 10 9 4 20.3 21 293 -49 28 41 0 27 41 20 29 1 0 27 21 20 -0.01 - 91 0 0 27 48 33 9 4 15.1 20 293 -49 28 18 30 27 18 37 28 38 33 26 58 34 -0.01 - 90 0 0 27 25 23 9 4 10.1 19 294 -48 27 55 25 26 55 21 28 15 33 26 35 13 -0.01 - 89 0 0 27 1 38 9 4 5.3 19 294 -47 27 31 46 26 31 29 27 51 58 26 11 18 -0.01 - 88 0 0 26 37 18 9 4 0.7 18 294 -46 27 7 33 26 7 4 27 27 49 25 46 48 -0.01 - 87 0 0 26 12 25 9 3 56.4 17 295 -45 26 42 45 25 42 4 27 3 6 25 21 43 -0.01 - 86 0 0 25 46 56 9 3 52.2 16 295 -45 26 17 23 25 16 29 26 37 48 24 56 4 -0.01 - 85 0 0 25 20 53 9 3 48.2 15 296 -44 25 51 26 24 50 19 26 11 55 24 29 50 -0.01 - 84 0 0 24 54 14 9 3 44.5 14 296 -43 25 24 55 24 23 34 25 45 28 24 3 1 -0.01 - 83 0 0 24 27 1 9 3 41.0 13 297 -42 24 57 48 23 56 14 25 18 26 23 35 37 -0.01 - 82 0 0 23 59 13 9 3 37.7 12 297 -41 24 30 7 23 28 20 24 50 49 23 7 38 -0.01 - 81 0 0 23 30 50 9 3 34.7 11 297 -40 24 1 50 22 59 50 24 22 37 22 39 4 -0.01 - 80 0 0 23 1 52 9 3 31.9 10 298 -39 23 32 59 22 30 45 23 53 50 22 9 54 -0.01 - 79 0 0 22 32 19 9 3 29.4 9 298 -39 23 3 33 22 1 6 23 24 28 21 40 10 -0.01 - 78 0 0 22 2 11 9 3 27.2 7 299 -38 22 33 32 21 30 51 22 54 31 21 9 51 -0.02 - 77 0 0 21 31 29 9 3 25.2 6 299 -37 22 2 56 21 0 2 22 24 0 20 38 57 -0.02 - 76 0 0 21 0 12 9 3 23.5 5 299 -36 21 31 45 20 28 38 21 52 54 20 7 29 -0.02 - 75 0 0 20 28 20 9 3 22.1 4 300 -35 21 0 0 19 56 39 21 21 14 19 35 26 -0.03 - 74 0 0 19 55 54 9 3 21.0 3 300 -34 20 27 41 19 24 7 20 48 59 19 2 49 -0.04 - 73 0 0 19 22 54 9 3 20.2 2 300 -33 19 54 48 18 51 0 20 16 10 18 29 38 -0.07 - 72 0 0 18 49 21 9 3 19.7 1 301 -32 19 21 21 18 17 20 19 42 48 17 55 53 -0.14 - 71 0 0 .. .. .... .. .. .. .. .. .. 18 47 21 .. .. .. 19 8 52 .. .. .. .... Uncertainty in time = +/- 6 secs Prediction of 2023 Jan 26.8 Data for the target star ------------------------ * name: UCAC4 597-038214 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 11 49.4987 DE: +29 17 06.997 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 11 49.4986 DE: +29 17 06.997 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 13.6 * B mag [mag]: 13.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (303) Josephina asteroid class: approx. diameter [km]: 102 approx. diameter ["]: 0.063 distance from Earth [AU]: 2.21900 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2022 Nov 22 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): 0.027", 0.019", 99.4° remarks: * orbital elements for (303)Josephina : Mean anomaly = 60.5595765413 deg Arg. of pericenter = 67.3958741021 deg Long. of node = 343.6472370565 deg Inclination = 6.8870745275 deg Eccentricity = 0.0564737907 Semimajor axis = 3.1222935854 AU Perihelion dist = 2.9459658309 AU Mag: H = 8.96, G = 0.15 Epoch of elements : MJD 59989.38744396 TDT (2023 Feb 14.3874) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542022Nov22,13.96,2023,2,14,9.298681,-0.007916,0.022375,-3.869954,-1.376847,0.003663,-0.001019,0.000001,0.000000 -175.2959,29.2473,44.06,-13.05,False UCAC4 597-038214,7.19708298,29.2852769,13.80,13.63,13.54,0.0,0,,7.22157575,29.2473351,0.49,0.58,1,0,1 303,Josephina,13.85,101.6,2.2190,0,0,-1.171,-5.46,,5.0,0 0,60.4904,2023,2,14,67.3959,343.6472,6.8871,0.05647,3.12229,2.94597,8.98,5.0,0.15 1.335,0.0270,0.0190,99,0.0212,Known errors,1.13,-1,-1,-1 20230214_038214,59970.78 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jan 26, 18:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org