IOTA/IOTA-ES occultation update for (943) Begonia / TYC 6273-01308-1 event on 2023 Aug 03, 20:20 UT Visible from Europe, Africa Summary ------- On 2023 Aug 03 UT, the 67.1 km diameter asteroid (943) Begonia will occult a 10.1 mag star in the constellation Sagittarius for observers along a path across Europe, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.53 mag to 15.58 mag (the magnitude of the asteroid) for at most 6.310 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 Aug 03, 20:15 - 2023 Aug 03, 20:26 * geocentric midpoint of event [JD]: 2460160.34771354 * magnitude of target star: 10.06 * magnitude drop [mag]: 5.53 * estimated maximum duration [s]: 6.310 * Moon: 93 % sunlit, 68° distance * Sun: 143° distance * rough path description: Europe, Africa The occultation path -------------------- * approximate projected width [km]: 126 * 1 sigma uncertainty interval [path widths]: +/- 0.33 * 1 sigma uncertainty interval [seconds]: +/- 3.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.019", 0.002", 101°) * approx speed of asteroid's shadow [km/s]: 10.6374 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6273-01308-1 by 943 Begonia on 2023 Aug 3 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 - 59 0 0 33 33 11 20 26 1.1 0 115 29 34 11 46 32 55 21 .. .. .. 32 30 26 .... - 58 0 0 33 10 35 20 26 0.8 1 116 28 33 48 52 32 33 2 34 14 55 32 8 18 -0.85 - 57 0 0 32 48 52 20 26 0.3 2 116 28 33 26 52 32 11 36 33 52 42 31 47 2 -1.18 - 56 0 0 32 28 3 20 25 59.5 3 117 27 33 5 46 31 51 2 33 31 25 31 26 39 -1.31 - 55 0 0 32 8 7 20 25 58.4 4 117 26 32 45 35 31 31 21 33 11 2 31 7 7 -1.38 - 54 0 0 31 49 5 20 25 57.1 5 118 25 32 26 17 31 12 33 32 51 34 30 48 28 -1.43 - 53 0 0 31 30 55 20 25 55.4 6 118 24 32 7 53 30 54 36 32 33 1 30 30 40 -1.46 - 52 0 0 31 13 38 20 25 53.5 7 119 23 31 50 23 30 37 32 32 15 21 30 13 44 -1.48 - 51 0 0 30 57 13 20 25 51.4 8 119 22 31 33 45 30 21 19 31 58 34 29 57 39 -1.50 - 50 0 0 30 41 41 20 25 49.0 8 120 21 31 18 1 30 5 58 31 42 42 29 42 25 -1.51 - 49 0 0 30 27 0 20 25 46.3 9 120 21 31 3 9 29 51 29 31 27 42 29 28 2 -1.52 - 48 0 0 30 13 12 20 25 43.4 10 121 20 30 49 10 29 37 50 31 13 36 29 14 30 -1.53 - 47 0 0 30 0 15 20 25 40.2 11 122 19 30 36 4 29 25 3 31 0 22 29 1 49 -1.53 - 46 0 0 29 48 10 20 25 36.9 12 122 18 30 23 49 29 13 6 30 48 1 28 49 58 -1.54 - 45 0 0 29 36 55 20 25 33.2 13 123 17 30 12 26 29 2 0 30 36 33 28 38 57 -1.54 - 44 0 0 29 26 32 20 25 29.4 13 123 16 30 1 55 28 51 44 30 25 56 28 28 46 -1.55 - 43 0 0 29 17 0 20 25 25.3 14 124 15 29 52 15 28 42 19 30 16 11 28 19 25 -1.55 - 42 0 0 29 8 18 20 25 20.9 15 124 14 29 43 27 28 33 44 30 7 18 28 10 54 -1.55 - 41 0 0 29 0 27 20 25 16.4 16 125 14 29 35 30 28 25 58 29 59 17 28 3 12 -1.56 - 40 0 0 28 53 26 20 25 11.7 17 125 13 29 28 23 28 19 3 29 52 6 27 56 20 -1.56 - 39 0 0 28 47 15 20 25 6.7 17 126 12 29 22 8 28 12 57 29 45 47 27 50 17 -1.56 - 38 0 0 28 41 54 20 25 1.6 18 127 11 29 16 42 28 7 40 29 40 19 27 45 3 -1.56 - 37 0 0 28 37 23 20 24 56.2 19 127 10 29 12 7 28 3 12 29 35 41 27 40 38 -1.56 - 36 0 0 28 33 42 20 24 50.7 20 128 9 29 8 23 27 59 34 29 31 54 27 37 1 -1.57 - 35 0 0 28 30 50 20 24 44.9 20 129 8 29 5 28 27 56 44 29 28 58 27 34 13 -1.57 - 34 0 0 28 28 47 20 24 39.0 21 129 8 29 3 23 27 54 44 29 26 52 27 32 14 -1.57 - 33 0 0 28 27 34 20 24 32.9 22 130 7 29 2 8 27 53 32 29 25 35 27 31 3 -1.57 - 32 0 0 28 27 9 20 24 26.6 22 131 6 29 1 43 27 53 8 29 25 9 27 30 40 -1.57 - 31 0 0 28 27 34 20 24 20.1 23 131 5 29 2 7 27 53 33 29 25 33 27 31 6 -1.57 - 30 0 0 28 28 47 20 24 13.5 23 132 4 29 3 21 27 54 47 29 26 47 27 32 19 -1.57 - 29 0 0 28 30 50 20 24 6.7 24 133 4 29 5 24 27 56 49 29 28 50 27 34 20 -1.57 - 28 0 0 28 33 41 20 23 59.7 25 133 3 29 8 16 27 59 39 29 31 43 27 37 10 -1.57 - 27 0 0 28 37 20 20 23 52.6 25 134 2 29 11 57 28 3 17 29 35 26 27 40 47 -1.57 - 26 0 0 28 41 49 20 23 45.4 26 135 1 29 16 27 28 7 43 29 39 58 27 45 11 -1.57 - 25 0 0 28 47 5 20 23 38.0 26 136 0 29 21 47 28 12 57 29 45 19 27 50 24 -1.57 - 24 0 0 28 53 10 20 23 30.4 27 137 0 29 27 55 28 18 58 29 51 30 27 56 23 -1.57 - 23 0 0 29 0 4 20 23 22.7 27 137 -1 29 34 52 28 25 48 29 58 30 28 3 11 -1.58 - 22 0 0 29 7 45 20 23 14.9 28 138 -2 29 42 38 28 33 25 30 6 19 28 10 45 -1.58 - 21 0 0 29 16 15 20 23 7.0 28 139 -3 29 51 13 28 41 51 30 14 57 28 19 7 -1.58 - 20 0 0 29 25 33 20 22 58.9 29 140 -3 30 0 37 28 51 3 30 24 25 28 28 17 -1.58 - 19 0 0 29 35 39 20 22 50.8 29 141 -4 30 10 49 29 1 4 30 34 41 28 38 14 -1.58 - 18 0 0 29 46 34 20 22 42.5 30 142 -5 30 21 51 29 11 52 30 45 47 28 48 57 -1.58 - 17 0 0 29 58 16 20 22 34.1 30 143 -5 30 33 41 29 23 28 30 57 42 29 0 29 -1.58 - 16 0 0 30 10 47 20 22 25.6 30 144 -6 30 46 19 29 35 51 31 10 26 29 12 47 -1.58 - 15 0 0 30 24 6 20 22 17.0 31 145 -7 30 59 46 29 49 2 31 24 0 29 25 53 -1.58 - 14 0 0 30 38 13 20 22 8.4 31 146 -7 31 14 3 30 3 0 31 38 22 29 39 46 -1.58 - 13 0 0 30 53 8 20 21 59.6 31 147 -8 31 29 7 30 17 46 31 53 34 29 54 26 -1.58 - 12 0 0 31 8 52 20 21 50.8 31 148 -9 31 45 1 30 33 19 32 9 35 30 9 53 -1.58 - 11 0 0 31 25 23 20 21 41.9 31 149 -9 32 1 44 30 49 40 32 26 25 30 26 7 -1.59 - 10 0 0 31 42 42 20 21 32.9 32 150 -10 32 19 15 31 6 49 32 44 5 30 43 8 -1.59 - 9 0 0 32 0 50 20 21 23.9 32 151 -10 32 37 35 31 24 45 33 2 33 31 0 57 -1.59 - 8 0 0 32 19 46 20 21 14.8 32 152 -11 32 56 44 31 43 28 33 21 51 31 19 32 -1.59 - 7 0 0 32 39 30 20 21 5.7 32 153 -12 33 16 41 32 2 59 33 41 59 31 38 55 -1.59 - 6 0 0 33 0 2 20 20 56.5 32 154 -12 33 37 28 32 23 17 34 2 56 31 59 4 -1.59 - 5 0 0 33 21 22 20 20 47.3 32 155 -13 33 59 4 32 44 23 34 24 42 32 20 1 -1.59 - 4 0 0 33 43 31 20 20 38.1 32 156 -13 34 21 28 33 6 16 34 47 18 32 41 45 -1.59 - 3 0 0 34 6 27 20 20 28.8 32 157 -14 34 44 42 33 28 57 35 10 43 33 4 15 -1.60 - 2 0 0 34 30 12 20 20 19.5 32 158 -14 35 8 44 33 52 25 35 34 58 33 27 33 -1.60 - 1 0 0 34 54 45 20 20 10.3 32 159 -15 35 33 35 34 16 41 36 0 2 33 51 37 -1.60 0 0 0 35 20 6 20 20 1.0 32 160 -15 35 59 16 34 41 43 36 25 56 34 16 28 -1.60 1 0 0 35 46 15 20 19 51.7 32 161 -15 36 25 45 35 7 33 36 52 40 34 42 6 -1.60 2 0 0 36 13 12 20 19 42.5 31 163 -16 36 53 3 35 34 10 37 20 13 35 8 30 -1.60 3 0 0 36 40 57 20 19 33.2 31 164 -16 37 21 10 36 1 34 37 48 36 35 35 41 -1.61 4 0 0 37 9 29 20 19 24.0 31 165 -16 37 50 6 36 29 45 38 17 48 36 3 38 -1.61 5 0 0 37 38 50 20 19 14.9 31 166 -17 38 19 51 36 58 43 38 47 50 36 32 22 -1.61 6 0 0 38 8 58 20 19 5.8 30 167 -17 38 50 25 37 28 28 39 18 42 37 1 51 -1.61 7 0 0 38 39 54 20 18 56.7 30 168 -17 39 21 47 37 58 59 39 50 23 37 32 7 -1.61 8 0 0 39 11 37 20 18 47.7 30 169 -17 39 53 58 38 30 16 40 22 53 38 3 8 -1.62 9 0 0 39 44 7 20 18 38.8 29 170 -18 40 26 57 39 2 20 40 56 13 38 34 54 -1.62 10 0 0 40 17 25 20 18 30.0 29 171 -18 41 0 44 39 35 9 41 30 22 39 7 26 -1.62 11 0 0 40 51 29 20 18 21.3 28 172 -18 41 35 20 40 8 45 42 5 20 39 40 43 -1.62 12 0 0 41 26 20 20 18 12.6 28 173 -18 42 10 44 40 43 5 42 41 8 40 14 45 -1.62 13 0 0 42 1 57 20 18 4.1 27 174 -18 42 46 55 41 18 11 43 17 44 40 49 30 -1.63 14 0 0 42 38 20 20 17 55.7 27 176 -18 43 23 54 41 54 1 43 55 9 41 25 0 -1.63 15 0 0 43 15 29 20 17 47.5 26 177 -18 44 1 40 42 30 36 44 33 21 42 1 13 -1.63 16 0 0 43 53 23 20 17 39.3 26 178 -18 44 40 13 43 7 54 45 12 22 42 38 10 -1.63 17 0 0 44 32 2 20 17 31.4 25 179 -18 45 19 32 43 45 56 45 52 11 43 15 48 -1.63 18 0 0 45 11 25 20 17 23.5 24 180 -18 45 59 38 44 24 40 46 32 47 43 54 8 -1.64 19 0 0 45 51 32 20 17 15.9 24 181 -18 46 40 29 45 4 7 47 14 10 44 33 10 -1.64 20 0 0 46 32 22 20 17 8.4 23 182 -18 47 22 5 45 44 15 47 56 19 45 12 52 -1.64 21 0 0 47 13 54 20 17 1.2 22 183 -18 48 4 25 46 25 4 48 39 15 45 53 14 -1.64 22 0 0 47 56 8 20 16 54.1 22 184 -18 48 47 29 47 6 33 49 22 56 46 34 15 -1.64 23 0 0 48 39 3 20 16 47.2 21 184 -17 49 31 17 47 48 40 50 7 22 47 15 54 -1.65 24 0 0 49 22 38 20 16 40.6 20 185 -17 50 15 46 48 31 26 50 52 31 47 58 10 -1.65 25 0 0 50 6 51 20 16 34.2 19 186 -17 51 0 56 49 14 49 51 38 24 48 41 2 -1.65 26 0 0 50 51 43 20 16 28.0 18 187 -17 51 46 47 49 58 48 52 24 59 49 24 28 -1.65 27 0 0 51 37 11 20 16 22.1 18 188 -16 52 33 17 50 43 21 53 12 15 50 8 28 -1.66 28 0 0 52 23 14 20 16 16.4 17 189 -16 53 20 25 51 28 27 54 0 11 50 52 59 -1.66 29 0 0 53 9 51 20 16 11.0 16 190 -15 54 8 9 52 14 5 54 48 46 51 38 1 -1.66 30 0 0 53 57 0 20 16 5.9 15 191 -15 54 56 28 53 0 13 55 37 58 52 23 32 -1.66 31 0 0 54 44 39 20 16 1.1 14 192 -15 55 45 21 53 46 48 56 27 46 53 9 30 -1.67 32 0 0 55 32 47 20 15 56.6 13 193 -14 56 34 45 54 33 50 57 18 9 53 55 52 -1.67 33 0 0 56 21 21 20 15 52.3 12 194 -14 57 24 38 55 21 16 58 9 4 54 42 38 -1.67 34 0 0 57 10 20 20 15 48.4 11 195 -13 58 15 0 56 9 5 59 0 28 55 29 44 -1.68 35 0 0 57 59 41 20 15 44.8 10 195 -12 59 5 46 56 57 12 59 52 22 56 17 9 -1.68 36 0 0 58 49 20 20 15 41.5 10 196 -12 59 56 55 57 45 37 60 44 41 57 4 49 -1.69 37 0 0 59 39 17 20 15 38.5 9 197 -11 60 48 24 58 34 16 61 37 22 57 52 43 -1.69 38 0 0 60 29 26 20 15 35.8 8 198 -11 61 40 9 59 23 6 62 30 24 58 40 47 -1.70 39 0 0 61 19 46 20 15 33.5 7 199 -10 62 32 7 60 12 4 63 23 42 59 28 57 -1.71 40 0 0 62 10 12 20 15 31.5 6 200 -9 63 24 15 61 1 7 64 17 12 60 17 12 -1.72 41 0 0 63 0 41 20 15 29.8 5 201 -9 64 16 29 61 50 10 65 10 53 61 5 27 -1.74 42 0 0 63 51 8 20 15 28.4 4 202 -8 65 8 45 62 39 11 66 4 37 61 53 38 -1.76 43 0 0 64 41 30 20 15 27.3 3 203 -7 66 0 57 63 28 5 66 58 22 62 41 43 -1.80 44 0 0 65 31 42 20 15 26.6 2 203 -7 66 53 2 64 16 49 .. .. .. 63 29 36 -1.88 45 0 0 66 21 39 20 15 26.2 1 204 -6 .. .. .. 65 5 17 .. .. .. 64 17 15 -2.09 46 0 0 67 11 16 20 15 26.0 0 205 -5 .. .. .. 65 53 24 .. .. .. 65 4 33 -5.88 47 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 66 41 8 .. .. .. 65 51 28 .... 48 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 66 37 54 .... Uncertainty in time = +/- 4 secs Prediction of 2023 Jun 15.2 Data for the target star ------------------------ * name: TYC 6273-01308-1 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 18 10.5692 DE: -20 33 06.119 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 18 10.5691 DE: -20 33 06.119 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.1 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (943) Begonia asteroid class: approx. diameter [km]: 67 approx. diameter ["]: 0.032 distance from Earth [AU]: 2.88770 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#58 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): 0.019", 0.002", 101.383° remarks: * orbital elements for (943)Begonia : Mean anomaly = 158.5722439303 deg Arg. of pericenter = 3.8756670281 deg Long. of node = 113.7481231490 deg Inclination = 12.1105051683 deg Eccentricity = 0.2139266821 Semimajor axis = 3.1152107476 AU Perihelion dist = 2.4487840484 AU Mag: H = 9.80, G = 0.15 Epoch of elements : MJD 60159.84756944 TDT (2023 Aug 03.8476) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#582023Apr24,6.31,2023,8,3,20.345125,-0.313098,0.785921,-5.577523,-2.222606,0.003395,-0.000107,0.000001,0.000000 17.5675,-20.5429,-123.62,17.40,False TYC 6273-01308-1,18.30293589,-20.5516998,0.00,10.06,0.00,0.0,0,,18.32654415,-20.5428627,5.53,0.00,0,0,0 943,Begonia,15.58,67.100,2.8877,0,0,-1.209,-6.77,,3.4,0 0,158.4203,2023,8,3,3.8757,113.7481,12.1105,0.21393,3.11521,2.44878,9.79,5.0,0.15 1.335,0.0193,0.0022,101,0.0107,Known errors,-1.00,-1,-1,-1 20230803_1308-1,60110.21 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jun 15, 05:05 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org