IOTA/IOTA-ES occultation update for (200) Dynamene / TYC 7328-00981-1 event on 2023 Apr 27, 07:43 UT Visible from USA, SE Canada Summary ------- On 2023 Apr 27 UT, the 131.2 km diameter asteroid (200) Dynamene will occult a 11.2 mag star in the constellation Lupus for observers along a path across USA, SE Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.14 mag to 13.21 mag (the magnitude of the asteroid) for at most 12.020 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 Apr 27, 07:39 - 2023 Apr 27, 07:48 * geocentric midpoint of event [JD]: 2460061.82214771 * magnitude of target star: 11.23 * magnitude drop [mag]: 2.14 * estimated maximum duration [s]: 12.020 * Moon: 45 % sunlit, 122° distance * Sun: 152° distance * rough path description: USA, SE Canada The occultation path -------------------- * approximate projected width [km]: 356 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 3.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.027, +/- 0.019) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.019", 101°) * approx speed of asteroid's shadow [km/s]: 10.9120 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 7328-00981-1 by 200 Dynamene on 2023 Apr 27 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 -131 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 53 9 23 .... -130 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 53 32 3 .. .. .. 52 13 47 .... -129 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 52 35 18 .. .. .. 51 20 42 .... -128 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 51 41 21 .. .. .. 50 29 56 .... -127 0 0 53 41 10 7 47 25.4 1 151 -22 .. .. .. 50 49 57 .. .. .. 49 41 19 .... -126 0 0 52 43 59 7 47 24.6 2 152 -23 .. .. .. 50 0 52 .. .. .. 48 54 41 -1.71 -125 0 0 51 50 5 7 47 23.2 3 153 -24 55 7 50 49 13 56 .. .. .. 48 9 58 -2.03 -124 0 0 50 59 6 7 47 21.4 4 154 -25 54 4 49 48 29 2 .. .. .. 47 27 0 -2.19 -123 0 0 50 10 44 7 47 19.0 5 154 -26 53 6 32 47 46 1 54 46 31 46 45 45 -2.28 -122 0 0 49 24 46 7 47 16.3 6 155 -27 52 12 12 47 4 47 53 45 19 46 6 8 -2.34 -121 0 0 48 41 1 7 47 13.2 7 156 -28 51 21 18 46 25 16 52 48 52 45 28 5 -2.38 -120 0 0 47 59 19 7 47 9.7 8 157 -28 50 33 25 45 47 23 51 56 24 44 51 32 -2.41 -119 0 0 47 19 34 7 47 5.8 9 157 -29 49 48 14 45 11 4 51 7 22 44 16 26 -2.43 -118 0 0 46 41 39 7 47 1.7 10 158 -30 49 5 32 44 36 16 50 21 21 43 42 46 -2.45 -117 0 0 46 5 28 7 46 57.2 11 159 -30 48 25 5 44 2 56 49 38 2 43 10 27 -2.47 -116 0 0 45 30 57 7 46 52.5 11 160 -31 47 46 45 43 31 1 48 57 12 42 39 30 -2.48 -115 0 0 44 58 1 7 46 47.5 12 161 -31 47 10 24 43 0 28 48 18 39 42 9 50 -2.49 -114 0 0 44 26 39 7 46 42.3 13 161 -32 46 35 55 42 31 17 47 42 12 41 41 28 -2.50 -113 0 0 43 56 45 7 46 36.8 14 162 -32 46 3 13 42 3 24 47 7 45 41 14 21 -2.50 -112 0 0 43 28 19 7 46 31.1 14 163 -33 45 32 13 41 36 48 46 35 11 40 48 27 -2.51 -111 0 0 43 1 16 7 46 25.2 15 164 -33 45 2 50 41 11 28 46 4 23 40 23 45 -2.51 -110 0 0 42 35 35 7 46 19.2 15 165 -33 44 35 1 40 47 22 45 35 18 40 0 15 -2.52 -109 0 0 42 11 14 7 46 12.9 16 165 -34 44 8 44 40 24 28 45 7 51 39 37 55 -2.52 -108 0 0 41 48 12 7 46 6.5 17 166 -34 43 43 55 40 2 46 44 41 58 39 16 44 -2.52 -107 0 0 41 26 26 7 46 0.0 17 167 -34 43 20 31 39 42 14 44 17 37 38 56 41 -2.52 -106 0 0 41 5 55 7 45 53.3 18 168 -34 42 58 30 39 22 51 43 54 44 38 37 45 -2.53 -105 0 0 40 46 38 7 45 46.4 18 169 -34 42 37 52 39 4 38 43 33 18 38 19 56 -2.53 -104 0 0 40 28 34 7 45 39.5 18 170 -35 42 18 33 38 47 32 43 13 16 38 3 13 -2.53 -103 0 0 40 11 42 7 45 32.4 19 171 -35 42 0 32 38 31 33 42 54 36 37 47 35 -2.53 -102 0 0 39 56 0 7 45 25.2 19 171 -35 41 43 48 38 16 39 42 37 16 37 33 1 -2.53 -101 0 0 39 41 28 7 45 17.9 20 172 -35 41 28 19 38 2 52 42 21 15 37 19 31 -2.53 -100 0 0 39 28 5 7 45 10.6 20 173 -35 41 14 5 37 50 9 42 6 32 37 7 4 -2.53 - 99 0 0 39 15 51 7 45 3.1 20 174 -35 41 1 5 37 38 31 41 53 6 36 55 40 -2.54 - 98 0 0 39 4 44 7 44 55.6 20 175 -34 40 49 17 37 27 57 41 40 55 36 45 19 -2.54 - 97 0 0 38 54 45 7 44 48.1 21 176 -34 40 38 40 37 18 27 41 29 58 36 36 0 -2.54 - 96 0 0 38 45 52 7 44 40.4 21 177 -34 40 29 16 37 9 59 41 20 15 36 27 43 -2.54 - 95 0 0 38 38 5 7 44 32.8 21 178 -34 40 21 1 37 2 35 41 11 45 36 20 28 -2.54 - 94 0 0 38 31 25 7 44 25.1 21 178 -34 40 13 57 36 56 13 41 4 28 36 14 13 -2.54 - 93 0 0 38 25 49 7 44 17.3 21 179 -33 40 8 2 36 50 53 40 58 22 36 9 0 -2.54 - 92 0 0 38 21 20 7 44 9.6 21 180 -33 40 3 17 36 46 36 40 53 28 36 4 48 -2.54 - 91 0 0 38 17 55 7 44 1.8 21 181 -33 39 59 41 36 43 21 40 49 45 36 1 36 -2.54 - 90 0 0 38 15 35 7 43 54.1 21 182 -32 39 57 13 36 41 8 40 47 13 35 59 26 -2.55 - 89 0 0 38 14 21 7 43 46.3 21 183 -32 39 55 54 36 39 56 40 45 52 35 58 15 -2.55 - 88 0 0 38 14 11 7 43 38.5 21 184 -32 39 55 44 36 39 47 40 45 42 35 58 6 -2.55 - 87 0 0 38 15 6 7 43 30.8 21 185 -31 39 56 43 36 40 39 40 46 43 35 58 57 -2.55 - 86 0 0 38 17 6 7 43 23.1 21 186 -31 39 58 50 36 42 33 40 48 54 36 0 49 -2.55 - 85 0 0 38 20 11 7 43 15.4 21 187 -30 40 2 6 36 45 29 40 52 16 36 3 42 -2.56 - 84 0 0 38 24 21 7 43 7.8 21 187 -30 40 6 31 36 49 27 40 56 50 36 7 35 -2.56 - 83 0 0 38 29 37 7 43 0.2 21 188 -29 40 12 6 36 54 28 41 2 35 36 12 29 -2.56 - 82 0 0 38 35 58 7 42 52.7 21 189 -29 40 18 50 37 0 31 41 9 32 36 18 25 -2.56 - 81 0 0 38 43 25 7 42 45.2 20 190 -28 40 26 45 37 7 36 41 17 42 36 25 22 -2.57 - 80 0 0 38 51 59 7 42 37.8 20 191 -28 40 35 50 37 15 45 41 27 4 36 33 21 -2.57 - 79 0 0 39 1 39 7 42 30.5 20 192 -27 40 46 6 37 24 57 41 37 41 36 42 21 -2.57 - 78 0 0 39 12 27 7 42 23.3 19 193 -26 40 57 34 37 35 13 41 49 31 36 52 24 -2.57 - 77 0 0 39 24 23 7 42 16.2 19 193 -26 41 10 15 37 46 33 42 2 38 37 3 30 -2.58 - 76 0 0 39 37 27 7 42 9.2 19 194 -25 41 24 10 37 58 57 42 17 1 37 15 39 -2.58 - 75 0 0 39 51 40 7 42 2.3 18 195 -24 41 39 19 38 12 27 42 32 42 37 28 51 -2.58 - 74 0 0 40 7 3 7 41 55.5 18 196 -24 41 55 43 38 27 2 42 49 41 37 43 7 -2.59 - 73 0 0 40 23 37 7 41 48.9 17 197 -23 42 13 25 38 42 44 43 8 1 37 58 28 -2.59 - 72 0 0 40 41 23 7 41 42.4 17 198 -22 42 32 25 38 59 32 43 27 44 38 14 54 -2.60 - 71 0 0 41 0 22 7 41 36.0 16 198 -21 42 52 44 39 17 29 43 48 50 38 32 26 -2.60 - 70 0 0 41 20 35 7 41 29.9 16 199 -21 43 14 26 39 36 34 44 11 23 38 51 5 -2.61 - 69 0 0 41 42 3 7 41 23.9 15 200 -20 43 37 30 39 56 49 44 35 24 39 10 51 -2.61 - 68 0 0 42 4 48 7 41 18.0 14 201 -19 44 2 1 40 18 14 45 0 57 39 31 46 -2.62 - 67 0 0 42 28 51 7 41 12.4 14 202 -18 44 27 59 40 40 51 45 28 4 39 53 50 -2.62 - 66 0 0 42 54 14 7 41 7.0 13 202 -17 44 55 29 41 4 41 45 56 49 40 17 4 -2.63 - 65 0 0 43 21 0 7 41 1.8 12 203 -17 45 24 32 41 29 45 46 27 16 40 41 30 -2.63 - 64 0 0 43 49 10 7 40 56.8 12 204 -16 45 55 13 41 56 5 46 59 30 41 7 8 -2.64 - 63 0 0 44 18 46 7 40 52.1 11 205 -15 46 27 36 42 23 42 47 33 36 41 34 0 -2.65 - 62 0 0 44 49 52 7 40 47.6 10 206 -14 47 1 45 42 52 38 48 9 41 42 2 7 -2.66 - 61 0 0 45 22 30 7 40 43.5 9 206 -13 47 37 46 43 22 55 48 47 52 42 31 32 -2.67 - 60 0 0 45 56 44 7 40 39.6 9 207 -12 48 15 46 43 54 35 49 28 19 43 2 15 -2.68 - 59 0 0 46 32 38 7 40 36.0 8 208 -11 48 55 51 44 27 40 50 11 13 43 34 19 -2.69 - 58 0 0 47 10 16 7 40 32.7 7 209 -10 49 38 12 45 2 14 50 56 47 44 7 45 -2.71 - 57 0 0 47 49 44 7 40 29.8 6 209 -9 50 23 0 45 38 18 51 45 21 44 42 37 -2.73 - 56 0 0 48 31 8 7 40 27.3 5 210 -8 51 10 28 46 15 57 52 37 17 45 18 56 -2.76 - 55 0 0 49 14 36 7 40 25.1 4 211 -8 52 0 55 46 55 13 53 33 7 45 56 47 -2.80 - 54 0 0 50 0 16 7 40 23.4 3 212 -7 52 54 45 47 36 13 .. .. .. 46 36 11 -2.87 - 53 0 0 50 48 19 7 40 22.1 2 212 -6 .. .. .. 48 19 0 .. .. .. 47 17 13 -3.00 - 52 0 0 51 38 58 7 40 21.4 1 213 -5 .. .. .. 49 3 41 .. .. .. 47 59 58 -3.40 - 51 0 0 52 32 30 7 40 21.1 0 214 -4 .. .. .. 49 50 22 .. .. .. 48 44 29 -33.18 - 50 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 50 39 12 .. .. .. 49 30 53 .... - 49 0 0 .. .. .... .. .. .. .. .. .. .. .. .. 51 30 22 .. .. .. 50 19 19 .... - 48 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 51 9 52 .... Uncertainty in time = +/- 4 secs Prediction of 2023 Mar 1.1 Data for the target star ------------------------ * name: TYC 7328-00981-1 * constellation : Lupus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 15 53 46.0397 DE: -30 21 30.530 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 15 53 46.0397 DE: -30 21 30.530 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (200) Dynamene asteroid class: approx. diameter [km]: 131 approx. diameter ["]: 0.083 distance from Earth [AU]: 2.17540 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#114 date of fit: 2023 Feb 07 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", 100.908° remarks: * orbital elements for (200)Dynamene : Mean anomaly = 184.1622000111 deg Arg. of pericenter = 86.9413304739 deg Long. of node = 324.2544646628 deg Inclination = 6.8982789387 deg Eccentricity = 0.1327918541 Semimajor axis = 2.7379504521 AU Perihelion dist = 2.3743729352 AU Mag: H = 8.45, G = 0.15 Epoch of elements : MJD 60061.32208333 TDT (2023 Apr 27.3221) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1142023Feb07,12.02,2023,4,27,7.731545,0.031164,0.928903,-6.155562,0.207456,-0.002274,0.001389,0.000001,0.000000 -92.2069,-30.4279,63.46,13.79,False TYC 7328-00981-1,15.89612212,-30.3584805,0.00,11.23,0.00,0.0,0,,15.92050370,-30.4279222,2.14,0.00,0,0,0 200,Dynamene,13.21,131.2,2.1754,0,0,-1.924,0.84,,6.6,0 0,184.0921,2023,4,27,86.9413,324.2545,6.8983,0.13279,2.73795,2.37437,8.47,5.0,0.15 1.231,0.0273,0.0190,101,0.0192,Known errors,-1.00,-1,-1,-1 20230427_0981-1,60004.06 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Mar 01, 01:20 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org