IOTA/IOTA-ES occultation update for (2393) Suzuki / UCAC4 370-103265 event on 2023 May 08, 01:02 UT Visible from Europe, Africa Summary ------- On 2023 May 08 UT, the 50.3 km diameter asteroid (2393) Suzuki will occult a 11.9 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 3.78 mag to 15.66 mag (the magnitude of the asteroid) for at most 7.240 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: 85 * date and approx. time of event: 2023 May 08, 00:48 - 2023 May 08, 01:17 * geocentric midpoint of event [JD]: 2460072.54368255 * magnitude of target star: 11.91 * magnitude drop [mag]: 3.78 * estimated maximum duration [s]: 7.240 * Moon: 93 % sunlit, 15° distance * Sun: 140° distance * rough path description: Europe, Africa The occultation path -------------------- * approximate projected width [km]: 56 * 1 sigma uncertainty interval [path widths]: +/- 0.60 * 1 sigma uncertainty interval [seconds]: +/- 3.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.005", 85°) * approx speed of asteroid's shadow [km/s]: 6.9473 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 370-103265 by 2393 Suzuki on 2023 May 8 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 - 32 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 63 48 51 .. .. .. 63 25 40 .... - 31 0 0 63 46 30 1 16 42.4 0 130 -9 64 6 13 63 26 50 64 29 52 63 3 27 .... - 30 0 0 63 23 54 1 16 42.3 1 131 -9 63 43 48 63 4 4 64 7 41 62 40 27 -0.21 - 29 0 0 63 0 30 1 16 42.0 2 132 -10 63 20 36 62 40 29 63 44 42 62 16 40 -0.31 - 28 0 0 62 36 18 1 16 41.7 2 133 -10 62 56 34 62 16 5 63 20 54 61 52 3 -0.35 - 27 0 0 62 11 14 1 16 41.2 3 134 -11 62 31 43 61 50 51 62 56 16 61 26 35 -0.38 - 26 0 0 61 45 19 1 16 40.6 4 134 -11 62 5 59 61 24 44 62 30 46 61 0 15 -0.40 - 25 0 0 61 18 30 1 16 39.8 4 135 -12 61 39 22 60 57 44 62 4 23 60 33 1 -0.42 - 24 0 0 60 50 47 1 16 38.9 5 136 -12 61 11 50 60 29 49 61 37 5 60 4 53 -0.43 - 23 0 0 60 22 7 1 16 37.8 6 137 -13 60 43 22 60 0 57 61 8 51 59 35 48 -0.44 - 22 0 0 59 52 30 1 16 36.6 6 138 -13 60 13 56 59 31 8 60 39 40 59 5 45 -0.44 - 21 0 0 59 21 53 1 16 35.1 7 139 -14 59 43 31 59 0 20 60 9 29 58 34 43 -0.45 - 20 0 0 58 50 16 1 16 33.5 8 140 -14 59 12 6 58 28 32 59 38 18 58 2 41 -0.45 - 19 0 0 58 17 37 1 16 31.7 8 141 -15 58 39 39 57 55 42 59 6 5 57 29 38 -0.46 - 18 0 0 57 43 56 1 16 29.6 9 141 -15 58 6 9 57 21 49 58 32 49 56 55 32 -0.46 - 17 0 0 57 9 10 1 16 27.3 10 142 -16 57 31 34 56 46 52 57 58 28 56 20 21 -0.46 - 16 0 0 56 33 19 1 16 24.7 11 143 -17 56 55 54 56 10 50 57 23 2 55 44 6 -0.47 - 15 0 0 55 56 21 1 16 21.9 12 144 -17 56 19 7 55 33 41 56 46 28 55 6 45 -0.47 - 14 0 0 55 18 16 1 16 18.8 12 145 -18 55 41 13 54 55 26 56 8 47 54 28 18 -0.47 - 13 0 0 54 39 3 1 16 15.4 13 146 -18 55 2 11 54 16 3 55 29 58 53 48 42 -0.47 - 12 0 0 53 58 42 1 16 11.7 14 146 -19 54 21 59 53 35 31 54 49 58 53 7 59 -0.47 - 11 0 0 53 17 10 1 16 7.7 15 147 -19 53 40 38 52 53 50 54 8 49 52 26 7 -0.48 - 10 0 0 52 34 30 1 16 3.3 16 148 -20 52 58 6 52 11 0 53 26 29 51 43 6 -0.48 - 9 0 0 51 50 39 1 15 58.6 17 149 -21 52 14 25 51 27 1 52 42 58 50 58 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259 19 -21 0 23 -21 30 32 -20 42 18 -21 48 29 -0.48 107 0 0 -21 12 23 0 49 44.0 16 259 20 -20 57 17 -21 27 28 -20 39 11 -21 45 26 -0.49 108 0 0 -21 8 33 0 49 39.6 15 258 21 -20 53 25 -21 23 39 -20 35 18 -21 41 38 -0.49 109 0 0 -21 3 56 0 49 35.4 14 258 22 -20 48 47 -21 19 3 -20 30 38 -21 37 4 -0.49 110 0 0 -20 58 33 0 49 31.5 13 258 23 -20 43 22 -21 13 42 -20 25 12 -21 31 45 -0.49 111 0 0 -20 52 23 0 49 27.8 13 257 24 -20 37 11 -21 7 34 -20 18 58 -21 25 39 -0.49 112 0 0 -20 45 27 0 49 24.3 12 257 24 -20 30 12 -21 0 39 -20 11 58 -21 18 46 -0.49 113 0 0 -20 37 43 0 49 21.1 11 257 25 -20 22 27 -20 52 57 -20 4 9 -21 11 7 -0.50 114 0 0 -20 29 11 0 49 18.1 10 256 26 -20 13 53 -20 44 28 -19 55 33 -21 2 40 -0.50 115 0 0 -20 19 52 0 49 15.4 9 256 27 -20 4 31 -20 35 11 -19 46 8 -20 53 26 -0.50 116 0 0 -20 9 43 0 49 13.0 8 256 28 -19 54 20 -20 25 5 -19 35 54 -20 43 23 -0.50 117 0 0 -19 58 46 0 49 10.8 7 255 29 -19 43 19 -20 14 11 -19 24 50 -20 32 32 -0.51 118 0 0 -19 46 59 0 49 8.9 6 255 30 -19 31 29 -20 2 27 -19 12 56 -20 20 52 -0.51 119 0 0 -19 34 22 0 49 7.2 5 255 31 -19 18 49 -19 49 53 -19 0 12 -20 8 22 -0.52 120 0 0 -19 20 54 0 49 5.9 4 254 31 -19 5 18 -19 36 28 -18 46 36 -19 55 1 -0.53 121 0 0 -19 6 35 0 49 4.8 3 254 32 -18 50 55 -19 22 13 -18 32 9 -19 40 50 -0.54 122 0 0 -18 51 24 0 49 4.0 2 254 33 -18 35 40 -19 7 5 -18 16 49 -19 25 47 -0.56 123 0 0 -18 35 20 0 49 3.5 1 253 34 -18 19 32 -18 51 6 -18 0 36 -19 9 53 -0.63 124 0 0 -18 18 23 0 49 3.3 0 253 35 -18 2 30 -18 34 13 .. .. .. -18 53 5 -1.42 Uncertainty in time = +/- 6 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: UCAC4 370-103265 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 17 44 58.3513 DE: -16 09 43.435 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 17 44 58.3513 DE: -16 09 43.435 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2393) Suzuki asteroid class: approx. diameter [km]: 50 approx. diameter ["]: 0.032 distance from Earth [AU]: 2.19830 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#55 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): 0.024", 0.005", 84.51° remarks: * orbital elements for (2393)Suzuki : Mean anomaly = 297.7591230086 deg Arg. of pericenter = 114.3324208710 deg Long. of node = 223.9171123030 deg Inclination = 10.2899663336 deg Eccentricity = 0.1926297944 Semimajor axis = 3.2248655897 AU Perihelion dist = 2.6036603943 AU Mag: H = 10.77, G = 0.15 Epoch of elements : MJD 60072.04354167 TDT (2023 May 08.0435) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,7.24,2023,5,8,1.048381,0.295544,0.305371,-2.817605,2.727141,-0.003630,-0.000460,0.000001,0.000000 25.2466,-16.1728,163.41,16.97,False UCAC4 370-103265,17.74954202,-16.1620654,0.00,11.91,0.00,0.0,0,,17.77208280,-16.1727668,3.79,0.00,0,0,0 2393,Suzuki,15.66,50.3,2.1983,0,0,-0.782,10.91,,3.0,0 0,297.5815,2023,5,7,114.3324,223.9171,10.2900,0.19263,3.22487,2.60366,10.80,5.0,0.15 1.597,0.0243,0.0053,85,0.0188,Known errors,-1.00,-1,-1,-1 20230508_103265,60063.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:22 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org