IOTA/IOTA-ES occultation update for (417) Suevia / TYC 5689-01625-1 event on 2023 Aug 13, 05:40 UT Visible from W Canada Summary ------- On 2023 Aug 13 UT, the 48.1 km diameter asteroid (417) Suevia will occult a 10.8 mag star in the constellation Serpens for observers along a path across W Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.47 mag to 14.24 mag (the magnitude of the asteroid) for at most 12.440 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: 82 * date and approx. time of event: 2023 Aug 13, 05:18 - 2023 Aug 13, 06:03 * geocentric midpoint of event [JD]: 2460169.73665630 * magnitude of target star: 10.82 * magnitude drop [mag]: 3.47 * estimated maximum duration [s]: 12.440 * Moon: 9 % sunlit, 161° distance * Sun: 133° distance * rough path description: W Canada The occultation path -------------------- * approximate projected width [km]: 60 * 1 sigma uncertainty interval [path widths]: +/- 0.64 * 1 sigma uncertainty interval [seconds]: +/- 8.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.016) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.016", 86°) * approx speed of asteroid's shadow [km/s]: 3.8678 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5689-01625-1 by 417 Suevia on 2023 Aug 13 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 130 0 0 -10 53 38 6 2 49.6 1 104 43 -10 36 34 -11 10 39 -10 14 31 -11 32 23 .... 131 0 0 -11 7 41 6 2 48.9 2 104 42 -10 50 42 -11 24 36 -10 28 46 -11 46 14 -0.48 132 0 0 -11 20 40 6 2 47.6 3 104 41 -11 3 46 -11 37 30 -10 41 57 -11 59 2 -0.60 133 0 0 -11 32 36 6 2 45.7 4 104 40 -11 15 46 -11 49 21 -10 54 4 -12 10 47 -0.65 134 0 0 -11 43 30 6 2 43.2 5 103 40 -11 26 45 -12 0 11 -11 5 8 -12 21 32 -0.68 135 0 0 -11 53 23 6 2 40.1 6 103 39 -11 36 42 -12 10 1 -11 15 10 -12 31 16 -0.69 136 0 0 -12 2 17 6 2 36.4 6 103 38 -11 45 39 -12 18 50 -11 24 12 -12 40 1 -0.70 137 0 0 -12 10 11 6 2 32.2 7 103 37 -11 53 37 -12 26 41 -11 32 14 -12 47 48 -0.71 138 0 0 -12 17 7 6 2 27.4 8 103 36 -12 0 36 -12 33 34 -11 39 17 -12 54 37 -0.72 139 0 0 -12 23 5 6 2 22.0 9 103 35 -12 6 36 -12 39 29 -11 45 21 -13 0 29 -0.72 140 0 0 -12 28 5 6 2 16.1 10 102 34 -12 11 40 -12 44 28 -11 50 28 -13 5 24 -0.72 141 0 0 -12 32 10 6 2 9.7 11 102 33 -12 15 46 -12 48 30 -11 54 37 -13 9 24 -0.72 142 0 0 -12 35 19 6 2 2.8 12 102 32 -12 18 57 -12 51 37 -11 57 50 -13 12 28 -0.73 143 0 0 -12 37 32 6 1 55.3 13 102 32 -12 21 12 -12 53 48 -12 0 7 -13 14 38 -0.73 144 0 0 -12 38 50 6 1 47.3 14 102 31 -12 22 31 -12 55 5 -12 1 29 -13 15 53 -0.73 145 0 0 -12 39 14 6 1 38.8 15 101 30 -12 22 56 -12 55 28 -12 1 55 -13 16 14 -0.73 146 0 0 -12 38 43 6 1 29.9 16 101 29 -12 22 26 -12 54 56 -12 1 27 -13 15 42 -0.73 147 0 0 -12 37 19 6 1 20.4 17 101 28 -12 21 3 -12 53 31 -12 0 4 -13 14 16 -0.72 148 0 0 -12 35 1 6 1 10.4 18 101 27 -12 18 45 -12 51 13 -11 57 47 -13 11 57 -0.72 149 0 0 -12 31 50 6 0 59.9 19 101 26 -12 15 34 -12 48 2 -11 54 36 -13 8 46 -0.72 150 0 0 -12 27 46 6 0 48.9 20 101 26 -12 11 30 -12 43 58 -11 50 31 -13 4 42 -0.72 151 0 0 -12 22 49 6 0 37.4 20 101 25 -12 6 33 -12 39 1 -11 45 34 -12 59 46 -0.72 152 0 0 -12 16 59 6 0 25.5 21 101 24 -12 0 42 -12 33 12 -11 39 43 -12 53 57 -0.72 153 0 0 -12 10 17 6 0 13.0 22 100 23 -11 53 59 -12 26 31 -11 32 58 -12 47 17 -0.72 154 0 0 -12 2 42 6 0 0.1 23 100 22 -11 46 23 -12 18 57 -11 25 21 -12 39 45 -0.72 155 0 0 -11 54 14 5 59 46.7 24 100 22 -11 37 55 -12 10 31 -11 16 51 -12 31 20 -0.72 156 0 0 -11 44 55 5 59 32.8 25 100 21 -11 28 34 -12 1 13 -11 7 28 -12 22 4 -0.72 157 0 0 -11 34 43 5 59 18.4 26 100 20 -11 18 20 -11 51 2 -10 57 12 -12 11 56 -0.72 158 0 0 -11 23 38 5 59 3.6 27 100 19 -11 7 13 -11 40 0 -10 46 3 -12 0 56 -0.72 159 0 0 -11 11 41 5 58 48.2 27 100 18 -10 55 14 -11 28 5 -10 34 1 -11 49 4 -0.71 160 0 0 -10 58 52 5 58 32.4 28 100 18 -10 42 22 -11 15 18 -10 21 5 -11 36 19 -0.71 161 0 0 -10 45 9 5 58 16.1 29 100 17 -10 28 37 -11 1 38 -10 7 17 -11 22 43 -0.71 162 0 0 -10 30 34 5 57 59.3 30 100 16 -10 13 59 -10 47 6 - 9 52 35 -11 8 14 -0.71 163 0 0 -10 15 6 5 57 42.0 31 100 15 - 9 58 28 -10 31 40 - 9 37 0 -10 52 53 -0.71 164 0 0 - 9 58 44 5 57 24.2 32 101 14 - 9 42 3 -10 15 22 - 9 20 31 -10 36 39 -0.71 165 0 0 - 9 41 29 5 57 6.0 33 101 14 - 9 24 44 - 9 58 11 - 9 3 8 -10 19 32 -0.71 166 0 0 - 9 23 21 5 56 47.2 33 101 13 - 9 6 32 - 9 40 6 - 8 44 51 -10 1 32 -0.71 167 0 0 - 9 4 19 5 56 28.0 34 101 12 - 8 47 26 - 9 21 8 - 8 25 39 - 9 42 39 -0.71 168 0 0 - 8 44 22 5 56 8.3 35 101 11 - 8 27 25 - 9 1 15 - 8 5 33 - 9 22 52 -0.71 169 0 0 - 8 23 31 5 55 48.0 36 101 11 - 8 6 29 - 8 40 29 - 7 44 31 - 9 2 11 -0.71 170 0 0 - 8 1 45 5 55 27.3 37 102 10 - 7 44 39 - 8 18 48 - 7 22 34 - 8 40 36 -0.71 171 0 0 - 7 39 4 5 55 6.1 38 102 9 - 7 21 53 - 7 56 12 - 6 59 42 - 8 18 6 -0.71 172 0 0 - 7 15 28 5 54 44.4 38 102 8 - 6 58 11 - 7 32 41 - 6 35 54 - 7 54 41 -0.71 173 0 0 - 6 50 56 5 54 22.2 39 103 8 - 6 33 34 - 7 8 14 - 6 11 9 - 7 30 22 -0.71 174 0 0 - 6 25 27 5 53 59.5 40 103 7 - 6 8 0 - 6 42 51 - 5 45 27 - 7 5 6 -0.71 175 0 0 - 5 59 2 5 53 36.3 41 104 6 - 5 41 29 - 6 16 32 - 5 18 48 - 6 38 54 -0.71 176 0 0 - 5 31 40 5 53 12.6 41 104 5 - 5 14 0 - 5 49 16 - 4 51 12 - 6 11 46 -0.71 177 0 0 - 5 3 21 5 52 48.4 42 105 5 - 4 45 34 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2 35 38 5 46 48.3 50 116 -5 2 55 17 2 16 4 3 20 42 1 51 4 -0.72 -169 0 0 3 18 13 5 46 17.2 51 117 -5 3 38 4 2 58 28 4 3 43 2 33 14 -0.72 -168 0 0 4 1 53 5 45 45.7 51 119 -6 4 21 55 3 41 56 4 47 50 3 16 28 -0.72 -167 0 0 4 46 38 5 45 13.7 52 120 -7 5 6 53 4 26 30 5 33 3 4 0 47 -0.73 -166 0 0 5 32 30 5 44 41.2 52 121 -7 5 52 57 5 12 9 6 19 24 4 46 11 -0.73 -165 0 0 6 19 28 5 44 8.3 52 123 -8 6 40 8 5 58 54 7 6 53 5 32 40 -0.73 -164 0 0 7 7 33 5 43 35.0 53 125 -8 7 28 27 6 46 47 7 55 29 6 20 15 -0.73 -163 0 0 7 56 46 5 43 1.3 53 126 -9 8 17 54 7 35 46 8 45 15 7 8 57 -0.73 -162 0 0 8 47 7 5 42 27.2 53 128 -10 9 8 30 8 25 53 9 36 10 7 58 46 -0.74 -161 0 0 9 38 37 5 41 52.7 53 130 -10 10 0 15 9 17 7 10 28 15 8 49 42 -0.74 -160 0 0 10 31 16 5 41 17.9 53 131 -11 10 53 10 10 9 31 11 21 31 9 41 46 -0.74 -159 0 0 11 25 5 5 40 42.7 53 133 -11 11 47 15 11 3 3 12 15 58 10 34 58 -0.74 -158 0 0 12 20 3 5 40 7.1 53 135 -12 12 42 31 11 57 45 13 11 36 11 29 19 -0.75 -157 0 0 13 16 12 5 39 31.3 53 137 -12 13 38 58 12 53 36 14 8 26 12 24 48 -0.75 -156 0 0 14 13 32 5 38 55.2 53 139 -13 14 36 36 13 50 38 15 6 29 13 21 27 -0.75 -155 0 0 15 12 3 5 38 18.9 53 141 -13 15 35 26 14 48 50 16 5 45 14 19 15 -0.76 -154 0 0 16 11 45 5 37 42.3 52 142 -14 16 35 29 15 48 12 17 6 14 15 18 13 -0.76 -153 0 0 17 12 39 5 37 5.5 52 144 -14 17 36 44 16 48 46 18 7 57 16 18 21 -0.76 -152 0 0 18 14 45 5 36 28.5 52 146 -14 18 39 12 17 50 30 19 10 55 17 19 39 -0.77 -151 0 0 19 18 3 5 35 51.4 51 148 -15 19 42 53 18 53 26 20 15 6 18 22 6 -0.77 -150 0 0 20 22 33 5 35 14.2 51 150 -15 20 47 47 19 57 33 21 20 33 19 25 44 -0.77 -149 0 0 21 28 16 5 34 36.9 50 152 -15 21 53 55 21 2 51 22 27 14 20 30 32 -0.78 -148 0 0 22 35 10 5 33 59.6 50 153 -16 23 1 16 22 9 20 23 35 10 21 36 30 -0.78 -147 0 0 23 43 17 5 33 22.3 49 155 -16 24 9 50 23 17 1 24 44 21 22 43 38 -0.78 -146 0 0 24 52 36 5 32 45.0 48 157 -16 25 19 37 24 25 52 25 54 46 23 51 54 -0.79 -145 0 0 26 3 6 5 32 7.9 47 158 -16 26 30 38 25 35 53 27 6 27 25 1 20 -0.79 -144 0 0 27 14 47 5 31 30.9 47 160 -16 27 42 50 26 47 4 28 19 22 26 11 53 -0.79 -143 0 0 28 27 39 5 30 54.1 46 162 -17 28 56 15 27 59 24 29 33 30 27 23 34 -0.80 -142 0 0 29 41 40 5 30 17.6 45 163 -17 30 10 50 29 12 51 30 48 52 28 36 21 -0.80 -141 0 0 30 56 49 5 29 41.4 44 164 -17 31 26 36 30 27 26 32 5 26 29 50 13 -0.80 -140 0 0 32 13 6 5 29 5.6 43 166 -17 32 43 30 31 43 6 33 23 12 31 5 9 -0.81 -139 0 0 33 30 28 5 28 30.2 42 167 -17 34 1 32 32 59 51 34 42 7 32 21 7 -0.81 -138 0 0 34 48 54 5 27 55.2 40 169 -17 35 20 39 34 17 37 36 2 11 33 38 4 -0.81 -137 0 0 36 8 21 5 27 20.9 39 170 -16 36 40 50 35 36 23 37 23 20 34 56 0 -0.82 -136 0 0 37 28 48 5 26 47.2 38 171 -16 38 2 1 36 56 6 38 45 33 36 14 51 -0.82 -135 0 0 38 50 10 5 26 14.2 37 172 -16 39 24 11 38 16 43 40 8 47 37 34 33 -0.82 -134 0 0 40 12 24 5 25 42.0 36 173 -16 40 47 14 39 38 10 41 32 59 38 55 4 -0.83 -133 0 0 41 35 26 5 25 10.6 34 175 -16 42 11 8 41 0 24 42 58 3 40 16 19 -0.83 -132 0 0 42 59 12 5 24 40.1 33 176 -15 43 35 47 42 23 20 44 23 56 41 38 13 -0.83 -131 0 0 44 23 36 5 24 10.7 32 177 -15 45 1 7 43 46 51 45 50 32 43 0 42 -0.83 -130 0 0 45 48 31 5 23 42.3 30 178 -14 46 27 0 45 10 53 47 17 44 44 23 39 -0.84 -129 0 1 47 13 52 5 23 15.0 29 179 -14 47 53 19 46 35 18 48 45 26 45 46 58 -0.84 -128 0 1 48 39 29 5 22 49.0 27 180 -14 49 19 57 47 59 59 50 13 28 47 10 32 -0.84 -127 0 1 50 5 14 5 22 24.2 26 181 -13 50 46 43 49 24 46 51 41 41 48 34 11 -0.84 -126 0 1 51 30 57 5 22 0.7 24 182 -12 52 13 29 50 49 31 53 9 55 49 57 47 -0.84 -125 0 1 52 56 28 5 21 38.7 23 183 -12 53 40 2 52 14 4 54 37 57 51 21 11 -0.84 -124 0 1 54 21 33 5 21 18.1 22 184 -11 55 6 11 53 38 12 56 5 34 52 44 11 -0.84 -123 0 1 55 46 2 5 20 58.9 20 184 -11 56 31 41 55 1 44 57 32 31 54 6 36 -0.84 -122 0 1 57 9 39 5 20 41.2 19 185 -10 57 56 18 56 24 26 58 58 33 55 28 14 -0.84 -121 0 1 58 32 11 5 20 25.1 17 186 -9 59 19 46 57 46 6 60 23 23 56 48 52 -0.85 -120 0 1 59 53 22 5 20 10.4 16 187 -8 60 41 51 59 6 28 61 46 44 58 8 17 -0.85 -119 0 1 61 12 58 5 19 57.2 15 188 -8 62 2 15 60 25 19 63 8 18 59 26 16 -0.85 -118 0 1 62 30 43 5 19 45.5 13 189 -7 63 20 43 61 42 25 64 27 47 60 42 36 -0.85 -117 0 1 63 46 22 5 19 35.2 12 190 -6 64 36 58 62 57 31 65 44 54 61 57 4 -0.85 -116 0 1 64 59 43 5 19 26.3 11 191 -6 65 50 47 64 10 26 66 59 22 63 9 27 -0.85 -115 0 1 66 10 32 5 19 18.6 9 192 -5 67 1 56 65 20 56 68 10 59 64 19 35 -0.85 -114 0 1 67 18 39 5 19 12.1 8 193 -4 68 10 14 66 28 53 69 19 31 65 27 19 -0.85 -113 0 1 68 23 55 5 19 6.8 7 194 -3 69 15 31 67 34 6 70 24 49 66 32 29 -0.85 -112 0 1 69 26 12 5 19 2.4 6 195 -3 70 17 41 68 36 30 71 26 47 67 34 59 -0.85 -111 0 1 70 25 28 5 18 58.9 5 195 -2 71 16 40 69 36 0 72 25 20 68 34 44 -0.86 -110 0 1 71 21 40 5 18 56.3 4 196 -1 72 12 27 70 32 34 73 20 28 69 31 42 -0.86 -109 0 1 72 14 47 5 18 54.3 3 197 -1 73 5 0 71 26 10 74 12 12 70 25 51 -0.88 -108 0 1 73 4 52 5 18 53.0 2 198 0 73 54 25 72 16 51 75 0 37 71 17 12 -0.90 -107 0 1 73 51 58 5 18 52.2 1 199 0 74 40 46 73 4 39 .. .. .. 72 5 48 -0.95 -106 0 1 74 36 13 5 18 51.9 0 200 1 .. .. .. 73 49 39 .. .. .. 72 51 42 -1.21 -105 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 74 31 58 .. .. .. 73 34 58 .... -104 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 74 15 43 .... Uncertainty in time = +/- 10 secs Prediction of 2023 Aug 6.7 Data for the target star ------------------------ * name: TYC 5689-01625-1 * constellation : Serpens * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 15 50.0613 DE: -14 07 22.365 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 15 50.0612 DE: -14 07 22.365 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (417) Suevia asteroid class: approx. diameter [km]: 48 approx. diameter ["]: 0.033 distance from Earth [AU]: 2.02860 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#71 date of fit: 2023 Jul 30 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): 0.026", 0.016", 85.752° remarks: * orbital elements for (417)Suevia : Mean anomaly = 85.6242306565 deg Arg. of pericenter = 348.3921478050 deg Long. of node = 199.4861945278 deg Inclination = 6.6478645301 deg Eccentricity = 0.1353706280 Semimajor axis = 2.7989229115 AU Perihelion dist = 2.4200309592 AU Mag: H = 9.72, G = 0.15 Epoch of elements : MJD 60169.23645833 TDT (2023 Aug 13.2365) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#712023Jul30,12.44,2023,8,13,5.679751,-0.442456,0.402300,-1.468599,-1.615249,0.004051,-0.000511,0.000001,0.000000 -132.3079,-14.1149,96.05,14.73,False TYC 5689-01625-1,18.26390592,-14.1228792,0.00,10.82,0.00,0.0,0,,18.28641548,-14.1149336,3.46,0.00,0,0,0 417,Suevia,14.24,48.100,2.0286,0,0,-0.436,-7.00,,2.4,0 0,85.5745,2023,8,13,348.3921,199.4862,6.6479,0.13537,2.79892,2.42003,9.61,5.0,0.15 1.642,0.0257,0.0157,86,0.0301,Known errors,-1.00,0,-1,-1 20230813_1625-1,60162.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Aug 06, 16:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org