IOTA/IOTA-ES occultation update for (200) Dynamene / TYC 0259-01394-1 event on 2022 Feb 28, 11:03 UT Visible from N Australia Summary ------- On 2022 Feb 28 UT, the 131.2 km diameter asteroid (200) Dynamene will occult a 12.2 mag star in the constellation Leo for observers along a path across N Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.71 mag to 12.12 mag (the magnitude of the asteroid) for at most 10.200 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: 2022 Feb 28, 10:55 - 2022 Feb 28, 11:10 * geocentric midpoint of event [JD]: 2459638.96040763 * magnitude of target star: 12.21 * magnitude drop [mag]: 0.71 * estimated maximum duration [s]: 10.200 * Moon: 7 % sunlit, 151° distance * Sun: 177° distance * rough path description: N Australia The occultation path -------------------- * approximate projected width [km]: 153 * 1 sigma uncertainty interval [path widths]: +/- 0.22 * 1 sigma uncertainty interval [seconds]: +/- 3.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.024) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.021", 118°) * approx speed of asteroid's shadow [km/s]: 12.8680 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0259-01394-1 by 200 Dynamene on 2022 Feb 28 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 105 0 0 -17 49 7 11 10 5.1 0 83 3 -17 7 30 -18 31 3 -16 49 2 -18 49 51 .... 106 0 0 -17 42 43 11 10 5.0 1 83 2 -17 1 7 -18 24 37 -16 42 39 -18 43 24 0.32 107 0 0 -17 36 35 11 10 4.7 2 83 1 -16 55 0 -18 18 27 -16 36 33 -18 37 14 0.44 108 0 0 -17 30 43 11 10 4.2 3 82 0 -16 49 10 -18 12 34 -16 30 44 -18 31 20 0.49 109 0 0 -17 25 8 11 10 3.6 4 82 -1 -16 43 36 -18 6 58 -16 25 10 -18 25 43 0.52 110 0 0 -17 19 49 11 10 2.9 5 82 -2 -16 38 18 -18 1 38 -16 19 54 -18 20 22 0.53 111 0 0 -17 14 47 11 10 2.0 6 82 -3 -16 33 18 -17 56 34 -16 14 53 -18 15 18 0.54 112 0 0 -17 10 2 11 10 0.9 7 81 -4 -16 28 34 -17 51 48 -16 10 10 -18 10 31 0.55 113 0 0 -17 5 33 11 9 59.6 8 81 -5 -16 24 6 -17 47 18 -16 5 43 -18 6 1 0.56 114 0 0 -17 1 22 11 9 58.2 9 81 -6 -16 19 56 -17 43 5 -16 1 33 -18 1 48 0.56 115 0 0 -16 57 27 11 9 56.7 10 80 -7 -16 16 2 -17 39 10 -15 57 40 -17 57 51 0.57 116 0 0 -16 53 49 11 9 55.0 11 80 -8 -16 12 25 -17 35 31 -15 54 3 -17 54 12 0.57 117 0 0 -16 50 28 11 9 53.1 12 80 -8 -16 9 5 -17 32 9 -15 50 43 -17 50 50 0.57 118 0 0 -16 47 24 11 9 51.1 13 79 -9 -16 6 2 -17 29 4 -15 47 40 -17 47 44 0.57 119 0 0 -16 44 37 11 9 48.9 14 79 -10 -16 3 15 -17 26 16 -15 44 55 -17 44 56 0.57 120 0 0 -16 42 7 11 9 46.6 15 79 -11 -16 0 46 -17 23 45 -15 42 26 -17 42 25 0.58 121 0 0 -16 39 54 11 9 44.2 15 78 -12 -15 58 34 -17 21 31 -15 40 13 -17 40 11 0.58 122 0 0 -16 37 57 11 9 41.5 16 78 -13 -15 56 38 -17 19 35 -15 38 18 -17 38 14 0.58 123 0 0 -16 36 18 11 9 38.8 17 78 -14 -15 55 0 -17 17 55 -15 36 40 -17 36 34 0.58 124 0 0 -16 34 56 11 9 35.9 18 77 -15 -15 53 38 -17 16 32 -15 35 19 -17 35 11 0.58 125 0 0 -16 33 51 11 9 32.8 19 77 -16 -15 52 34 -17 15 27 -15 34 14 -17 34 6 0.58 126 0 0 -16 33 3 11 9 29.6 20 77 -17 -15 51 46 -17 14 39 -15 33 27 -17 33 17 0.58 127 0 0 -16 32 32 11 9 26.3 21 76 -18 -15 51 15 -17 14 7 -15 32 56 -17 32 46 0.58 128 0 0 -16 32 18 11 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-146 0 0 -30 17 25 10 59 40.6 49 331 -49 -29 34 24 -31 0 47 -29 15 20 -31 20 13 0.60 -145 0 0 -30 32 32 10 59 34.0 49 329 -48 -29 49 30 -31 15 54 -29 30 25 -31 35 21 0.60 -144 0 0 -30 47 38 10 59 27.4 48 328 -48 -30 4 36 -31 31 0 -29 45 31 -31 50 27 0.60 -143 0 0 -31 2 43 10 59 20.9 47 327 -47 -30 19 41 -31 46 6 -30 0 35 -32 5 34 0.60 -142 0 0 -31 17 48 10 59 14.5 47 326 -47 -30 34 45 -32 1 11 -30 15 39 -32 20 39 0.60 -141 0 0 -31 32 51 10 59 8.1 46 325 -46 -30 49 48 -32 16 15 -30 30 42 -32 35 42 0.60 -140 0 0 -31 47 53 10 59 1.9 45 324 -45 -31 4 49 -32 31 17 -30 45 43 -32 50 44 0.60 -139 0 0 -32 2 52 10 58 55.7 45 323 -45 -31 19 49 -32 46 17 -31 0 43 -33 5 44 0.60 -138 0 0 -32 17 50 10 58 49.6 44 322 -44 -31 34 46 -33 1 14 -31 15 40 -33 20 42 0.60 -137 0 0 -32 32 45 10 58 43.6 43 321 -43 -31 49 41 -33 16 10 -31 30 36 -33 35 38 0.60 -136 0 0 -32 47 38 10 58 37.7 43 320 -43 -32 4 34 -33 31 2 -31 45 28 -33 50 30 0.60 -135 0 0 -33 2 28 10 58 32.0 42 319 -42 -32 19 24 -33 45 52 -32 0 18 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7 -34 52 49 -36 57 32 0.61 -122 0 0 -36 8 36 10 57 25.6 32 308 -33 -35 25 39 -36 51 52 -35 6 36 -37 11 17 0.61 -121 0 0 -36 22 15 10 57 21.3 31 307 -32 -35 39 20 -37 5 31 -35 20 18 -37 24 55 0.61 -120 0 0 -36 35 48 10 57 17.0 31 306 -31 -35 52 54 -37 19 3 -35 33 52 -37 38 26 0.61 -119 0 0 -36 49 14 10 57 12.8 30 306 -30 -36 6 21 -37 32 27 -35 47 19 -37 51 50 0.61 -118 0 0 -37 2 32 10 57 8.8 29 305 -30 -36 19 40 -37 45 45 -36 0 40 -38 5 7 0.61 -117 0 0 -37 15 43 10 57 4.9 28 304 -29 -36 32 52 -37 58 54 -36 13 52 -38 18 16 0.61 -116 0 0 -37 28 47 10 57 1.0 28 304 -28 -36 45 57 -38 11 56 -36 26 57 -38 31 18 0.61 -115 0 0 -37 41 42 10 56 57.3 27 303 -27 -36 58 54 -38 24 50 -36 39 55 -38 44 11 0.61 -114 0 0 -37 54 29 10 56 53.7 26 302 -27 -37 11 43 -38 37 36 -36 52 44 -38 56 56 0.61 -113 0 0 -38 7 8 10 56 50.2 25 301 -26 -37 24 23 -38 50 14 -37 5 25 -39 9 33 0.61 -112 0 0 -38 19 39 10 56 46.8 24 301 -25 -37 36 55 -39 2 43 -37 17 58 -39 22 1 0.61 -111 0 0 -38 32 1 10 56 43.5 24 300 -24 -37 49 18 -39 15 3 -37 30 22 -39 34 21 0.61 -110 0 0 -38 44 14 10 56 40.3 23 299 -24 -38 1 33 -39 27 14 -37 42 37 -39 46 32 0.61 -109 0 0 -38 56 18 10 56 37.2 22 299 -23 -38 13 39 -39 39 17 -37 54 44 -39 58 33 0.61 -108 0 0 -39 8 13 10 56 34.3 21 298 -22 -38 25 35 -39 51 10 -38 6 41 -40 10 26 0.61 -107 0 0 -39 19 58 10 56 31.4 21 297 -21 -38 37 22 -40 2 54 -38 18 29 -40 22 8 0.61 -106 0 0 -39 31 34 10 56 28.7 20 296 -21 -38 49 0 -40 14 28 -38 30 7 -40 33 42 0.61 -105 0 0 -39 43 1 10 56 26.0 19 296 -20 -39 0 28 -40 25 52 -38 41 36 -40 45 6 0.61 -104 0 0 -39 54 17 10 56 23.5 18 295 -19 -39 11 46 -40 37 7 -38 52 55 -40 56 19 0.61 -103 0 0 -40 5 24 10 56 21.1 18 294 -18 -39 22 55 -40 48 12 -39 4 4 -41 7 23 0.61 -102 0 0 -40 16 20 10 56 18.8 17 294 -18 -39 33 53 -40 59 6 -39 15 4 -41 18 17 0.61 -101 0 0 -40 27 6 10 56 16.6 16 293 -17 -39 44 41 -41 9 51 -39 25 53 -41 29 0 0.61 -100 0 0 -40 37 42 10 56 14.5 15 292 -16 -39 55 19 -41 20 24 -39 36 31 -41 39 33 0.61 - 99 0 0 -40 48 7 10 56 12.5 14 292 -15 -40 5 46 -41 30 48 -39 46 59 -41 49 56 0.61 - 98 0 0 -40 58 22 10 56 10.6 14 291 -15 -40 16 3 -41 41 1 -39 57 17 -42 0 8 0.61 - 97 0 0 -41 8 26 10 56 8.8 13 290 -14 -40 26 9 -41 51 3 -40 7 24 -42 10 9 0.61 - 96 0 0 -41 18 19 10 56 7.1 12 290 -13 -40 36 4 -42 0 54 -40 17 20 -42 19 59 0.61 - 95 0 0 -41 28 2 10 56 5.6 11 289 -12 -40 45 48 -42 10 34 -40 27 5 -42 29 38 0.61 - 94 0 0 -41 37 33 10 56 4.1 11 288 -12 -40 55 22 -42 20 3 -40 36 39 -42 39 7 0.62 - 93 0 0 -41 46 53 10 56 2.7 10 288 -11 -41 4 44 -42 29 21 -40 46 2 -42 48 24 0.62 - 92 0 0 -41 56 2 10 56 1.5 9 287 -10 -41 13 54 -42 38 28 -40 55 13 -42 57 30 0.62 - 91 0 0 -42 4 59 10 56 0.3 8 286 -9 -41 22 54 -42 47 23 -41 4 14 -43 6 24 0.62 - 90 0 0 -42 13 45 10 55 59.2 8 286 -9 -41 31 42 -42 56 7 -41 13 3 -43 15 7 0.62 - 89 0 0 -42 22 20 10 55 58.3 7 285 -8 -41 40 18 -43 4 40 -41 21 40 -43 23 39 0.62 - 88 0 0 -42 30 43 10 55 57.4 6 284 -7 -41 48 43 -43 13 1 -41 30 6 -43 31 59 0.63 - 87 0 0 -42 38 54 10 55 56.7 5 284 -6 -41 56 56 -43 21 10 -41 38 20 -43 40 7 0.63 - 86 0 0 -42 46 53 10 55 56.0 5 283 -6 -42 4 58 -43 29 7 -41 46 22 -43 48 3 0.63 - 85 0 0 -42 54 41 10 55 55.4 4 282 -5 -42 12 47 -43 36 53 -41 54 12 -43 55 48 0.64 - 84 0 0 -43 2 17 10 55 55.0 3 282 -4 -42 20 25 -43 44 27 -42 1 51 -44 3 21 0.65 - 83 0 0 -43 9 40 10 55 54.6 2 281 -3 -42 27 51 -43 51 49 -42 9 17 -44 10 42 0.66 - 82 0 0 -43 16 52 10 55 54.3 2 280 -3 -42 35 4 -43 58 58 -42 16 32 -44 17 51 0.69 - 81 0 0 -43 23 52 10 55 54.2 1 280 -2 -42 42 6 -44 5 56 -42 23 34 -44 24 48 0.76 - 80 0 0 -43 30 39 10 55 54.1 0 279 -1 -42 48 55 -44 12 42 -42 30 24 -44 31 33 1.21 Uncertainty in time = +/- 3 secs Prediction of 2022 Feb 14.8 Data for the target star ------------------------ * name: TYC 0259-01394-1 * constellation : Leo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 10 32 51.8266 DE: +06 21 40.915 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 10 32 51.8266 DE: +06 21 40.915 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (200) Dynamene asteroid class: approx. diameter [km]: 131 approx. diameter ["]: 0.100 distance from Earth [AU]: 1.81020 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#108 date of fit: 2022 Feb 04 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): 0.033", 0.021", 117.937° remarks: * orbital elements for (200)Dynamene : Mean anomaly = 92.2620592835 deg Arg. of pericenter = 86.8773181472 deg Long. of node = 324.2693549031 deg Inclination = 6.8993107808 deg Eccentricity = 0.1324891254 Semimajor axis = 2.7383409101 AU Perihelion dist = 2.3755405180 AU Mag: H = 8.42, G = 0.15 Epoch of elements : MJD 59638.46041667 TDT (2022 Feb 28.4604) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1082022Feb04,10.20,2022,2,28,11.049783,-0.114061,-0.498122,-7.079833,1.621109,0.000277,0.000179,0.000002,-0.000001 -165.4878,6.2464,17.38,-7.88,False TYC 0259-01394-1,10.54772962,6.3613652,0.00,12.21,0.00,0.0,0,,10.56713891,6.2464462,0.71,0.00,0,0,0 200,Dynamene,12.12,131.2,1.8102,0,0,-2.306,7.87,,6.6 0,92.1619,2022,2,28,86.8773,324.2694,6.8993,0.13249,2.73834,2.37554,8.43,5.0,0.15 1.223,0.0327,0.0213,118,0.0223,Known errors,-1.00,-1,-1,-1 20220228_1394-1,59624.80 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Feb 14, 19:19 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org