IOTA/IOTA-ES occultation update for (5567) Durisen / TYC 1432-00141-1 event on 2012 Nov 15, 23:29 UT Visible from SW Asia Summary ------- On 2012 Nov 15 UT, the 34 km diameter asteroid (5567) Durisen will occult a 9.9 mag star in the constellation Leo for observers along a path across SW Asia. In the case of an occultation, the combined light of the asteroid and the star will drop by 7.8 mag to 17.7 mag (the magnitude of the asteroid) for at most 1.7 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 23 * date and approx. time of event: 2012 Nov 15, 23:24 - 2012 Nov 15, 23:29 UT * geocentric midpoint of event [JD]: 2456247.47911667 * magnitude of target star: 9.9 * magnitude drop [mag]: 7.8 * estimated maximum duration [s]: 1.7 * Moon: 7 % sunlit, 106° distance * Sun: 77° distance * rough path description: SW Asia The occultation path -------------------- * approximate projected width [km]: 36 * 1 sigma uncertainty interval [path widths]: +/- 2.91 * 1 sigma uncertainty interval [seconds]: +/- 5.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .042 +/- .039) * 1 sigma uncertainty ellipse (major, minor, PA): ( .044", .037", 125° ) * approx speed of asteroid's shadow [km/s]: 19.7591 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1432-00141-1 by 5567 Durisen on 2012 Nov 15 Centre Star Star Sun Path Limits Error Limits E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude 15 0 0 31 32 11 23 24 50 1 67 -74 31 21 37 31 42 46 .. .. .. 32 44 33 16 0 0 31 54 3 23 24 50 1 68 -73 31 43 30 32 4 37 .. .. .. 33 6 18 17 0 0 32 15 36 23 24 50 2 68 -73 32 5 4 32 26 9 .. .. .. 33 27 44 18 0 0 32 36 50 23 24 50 3 69 -72 32 26 20 32 47 22 .. .. .. 33 48 50 19 0 0 32 57 45 23 24 51 4 69 -71 32 47 15 33 8 15 31 46 24 34 9 37 20 0 0 33 18 20 23 24 51 5 70 -70 33 7 52 33 28 49 32 7 7 34 30 5 21 0 0 33 38 35 23 24 52 6 70 -69 33 28 8 33 49 3 32 27 30 34 50 12 22 0 0 33 58 31 23 24 52 7 71 -68 33 48 5 34 8 57 32 47 33 35 9 59 23 0 0 34 18 6 23 24 53 8 71 -68 34 7 41 34 28 31 33 7 16 35 29 26 24 0 0 34 37 20 23 24 54 9 72 -67 34 26 57 34 47 45 33 26 39 35 48 33 25 0 0 34 56 15 23 24 55 10 73 -66 34 45 52 35 6 38 33 45 41 36 7 19 26 0 0 35 14 48 23 24 55 10 73 -65 35 4 26 35 25 10 34 4 22 36 25 44 27 0 0 35 33 0 23 24 56 11 74 -64 35 22 40 35 43 21 34 22 43 36 43 48 28 0 0 35 50 52 23 24 57 12 74 -63 35 40 33 36 1 11 34 40 43 37 1 31 29 0 0 36 8 22 23 24 59 13 75 -63 35 58 4 36 18 41 34 58 21 37 18 53 30 0 0 36 25 31 23 25 0 14 75 -62 36 15 15 36 35 48 35 15 38 37 35 54 31 0 0 36 42 19 23 25 1 15 76 -61 36 32 4 36 52 35 35 32 34 37 52 33 32 0 0 36 58 45 23 25 2 16 77 -60 36 48 31 37 9 0 35 49 9 38 8 51 33 0 0 37 14 50 23 25 4 16 77 -59 37 4 37 37 25 4 36 5 22 38 24 48 34 0 0 37 30 34 23 25 5 17 78 -58 37 20 22 37 40 46 36 21 13 38 40 23 35 0 0 37 45 55 23 25 7 18 79 -58 37 35 45 37 56 6 36 36 43 38 55 36 36 0 0 38 0 55 23 25 8 19 79 -57 37 50 46 38 11 5 36 51 51 39 10 28 37 0 0 38 15 34 23 25 10 20 80 -56 38 5 26 38 25 43 37 6 38 39 24 58 38 0 0 38 29 50 23 25 12 21 81 -55 38 19 43 38 39 58 37 21 2 39 39 7 39 0 0 38 43 45 23 25 13 21 81 -54 38 33 40 38 53 52 37 35 5 39 52 54 40 0 0 38 57 19 23 25 15 22 82 -54 38 47 14 39 7 24 37 48 46 40 6 19 41 0 0 39 10 30 23 25 17 23 83 -53 39 0 27 39 20 34 38 2 5 40 19 23 42 0 0 39 23 20 23 25 19 24 83 -52 39 13 17 39 33 23 38 15 3 40 32 5 43 0 0 39 35 48 23 25 21 25 84 -51 39 25 47 39 45 50 38 27 38 40 44 25 44 0 0 39 47 54 23 25 23 25 85 -50 39 37 54 39 57 55 38 39 52 40 56 24 45 0 0 39 59 39 23 25 25 26 85 -50 39 49 40 40 9 39 38 51 43 41 8 1 46 0 0 40 11 2 23 25 27 27 86 -49 40 1 4 40 21 1 39 3 13 41 19 17 47 0 0 40 22 3 23 25 29 28 87 -48 40 12 6 40 32 1 39 14 22 41 30 11 48 0 0 40 32 43 23 25 32 29 88 -47 40 22 47 40 42 39 39 25 8 41 40 44 49 0 0 40 43 1 23 25 34 29 88 -46 40 33 6 40 52 57 39 35 32 41 50 56 50 0 0 40 52 57 23 25 36 30 89 -46 40 43 3 41 2 52 39 45 35 42 0 45 51 0 0 41 2 32 23 25 38 31 90 -45 40 52 39 41 12 26 39 55 16 42 10 14 52 0 0 41 11 46 23 25 41 32 91 -44 41 1 53 41 21 39 40 4 36 42 19 21 53 0 0 41 20 37 23 25 43 32 91 -43 41 10 46 41 30 30 40 13 34 42 28 7 54 0 0 41 29 8 23 25 46 33 92 -43 41 19 17 41 38 59 40 22 10 42 36 32 55 0 0 41 37 17 23 25 48 34 93 -42 41 27 27 41 47 8 40 30 25 42 44 35 56 0 0 41 45 5 23 25 51 35 94 -41 41 35 16 41 54 54 40 38 18 42 52 18 57 0 0 41 52 31 23 25 53 35 94 -40 41 42 43 42 2 20 40 45 49 42 59 39 58 0 0 41 59 36 23 25 56 36 95 -39 41 49 49 42 9 25 40 52 59 43 6 39 59 0 0 42 6 20 23 25 59 37 96 -39 41 56 33 42 16 8 40 59 48 43 13 18 60 0 0 42 12 43 23 26 1 38 97 -38 42 2 57 42 22 30 41 6 15 43 19 36 61 0 0 42 18 45 23 26 4 38 98 -37 42 8 59 42 28 31 41 12 21 43 25 34 62 0 0 42 24 25 23 26 7 39 99 -36 42 14 40 42 34 11 41 18 5 43 31 10 63 0 0 42 29 44 23 26 10 40 99 -36 42 20 0 42 39 30 41 23 29 43 36 25 64 0 0 42 34 43 23 26 13 40 100 -35 42 24 59 42 44 27 41 28 30 43 41 20 65 0 0 42 39 20 23 26 16 41 101 -34 42 29 37 42 49 4 41 33 11 43 45 54 66 0 0 42 43 36 23 26 19 42 102 -33 42 33 53 42 53 20 41 37 30 43 50 7 67 0 0 42 47 32 23 26 22 43 103 -33 42 37 49 42 57 15 41 41 29 43 53 59 68 0 0 42 51 6 23 26 25 43 104 -32 42 41 24 43 0 49 41 45 6 43 57 31 69 0 0 42 54 19 23 26 28 44 105 -31 42 44 37 43 4 2 41 48 21 44 0 42 70 0 0 42 57 12 23 26 31 45 106 -30 42 47 30 43 6 54 41 51 16 44 3 32 71 0 0 42 59 43 23 26 34 45 107 -30 42 50 2 43 9 25 41 53 50 44 6 2 72 0 0 43 1 54 23 26 37 46 107 -29 42 52 13 43 11 36 41 56 2 44 8 11 73 0 0 43 3 44 23 26 40 47 108 -28 42 54 3 43 13 25 41 57 53 44 9 59 74 0 0 43 5 13 23 26 43 47 109 -27 42 55 32 43 14 54 41 59 23 44 11 27 75 0 0 43 6 21 23 26 47 48 110 -27 42 56 41 43 16 2 42 0 32 44 12 34 76 0 0 43 7 8 23 26 50 49 111 -26 42 57 28 43 16 49 42 1 20 44 13 21 77 0 0 43 7 35 23 26 53 50 112 -25 42 57 54 43 17 16 42 1 47 44 13 47 78 0 0 43 7 40 23 26 57 50 113 -25 42 58 0 43 17 21 42 1 53 44 13 52 79 0 0 43 7 25 23 27 0 51 114 -24 42 57 45 43 17 6 42 1 38 44 13 37 80 0 0 43 6 49 23 27 4 52 116 -23 42 57 8 43 16 30 42 1 1 44 13 1 81 0 0 43 5 52 23 27 7 52 117 -22 42 56 11 43 15 33 42 0 3 44 12 5 82 0 0 43 4 34 23 27 11 53 118 -22 42 54 53 43 14 15 41 58 44 44 10 47 83 0 0 43 2 55 23 27 14 54 119 -21 42 53 14 43 12 36 41 57 4 44 9 10 84 0 0 43 0 55 23 27 18 54 120 -20 42 51 14 43 10 36 41 55 3 44 7 11 85 0 0 42 58 34 23 27 21 55 121 -19 42 48 53 43 8 16 41 52 41 44 4 52 86 0 0 42 55 52 23 27 25 56 122 -19 42 46 11 43 5 34 41 49 57 44 2 12 87 0 0 42 52 49 23 27 29 56 124 -18 42 43 7 43 2 31 41 46 52 43 59 11 88 0 0 42 49 25 23 27 32 57 125 -17 42 39 43 42 59 8 41 43 26 43 55 49 89 0 0 42 45 40 23 27 36 57 126 -16 42 35 58 42 55 23 41 39 38 43 52 7 90 0 0 42 41 34 23 27 40 58 128 -16 42 31 51 42 51 17 41 35 29 43 48 4 91 0 0 42 37 6 23 27 44 59 129 -15 42 27 23 42 46 50 41 30 58 43 43 39 92 0 0 42 32 17 23 27 47 59 130 -14 42 22 34 42 42 2 41 26 6 43 38 54 93 0 0 42 27 7 23 27 51 60 132 -13 42 17 23 42 36 52 41 20 52 43 33 47 94 0 0 42 21 36 23 27 55 61 133 -13 42 11 51 42 31 21 41 15 17 43 28 20 95 0 0 42 15 43 23 27 59 61 135 -12 42 5 58 42 25 29 41 9 20 43 22 31 96 0 0 42 9 29 23 28 3 62 136 -11 41 59 43 42 19 16 41 3 2 43 16 21 97 0 0 42 2 53 23 28 7 62 138 -10 41 53 6 42 12 40 40 56 21 43 9 50 98 0 0 41 55 56 23 28 11 63 139 -10 41 46 8 42 5 44 40 49 19 43 2 57 99 0 0 41 48 37 23 28 15 64 141 -9 41 38 48 41 58 25 40 41 55 42 55 43 100 0 0 41 40 56 23 28 19 64 143 -8 41 31 7 41 50 45 40 34 9 42 48 8 101 0 0 41 32 53 23 28 23 65 145 -7 41 23 4 41 42 44 40 26 1 42 40 11 102 0 0 41 24 29 23 28 28 65 147 -7 41 14 38 41 34 20 40 17 32 42 31 52 103 0 0 41 15 43 23 28 32 66 148 -6 41 5 51 41 25 35 40 8 40 42 23 12 104 0 0 41 6 35 23 28 36 66 150 -5 40 56 42 41 16 28 39 59 25 42 14 10 105 0 0 40 57 5 23 28 40 67 153 -4 40 47 11 41 6 59 39 49 49 42 4 46 106 0 0 40 47 12 23 28 45 67 155 -3 40 37 18 40 57 7 39 39 51 41 55 1 107 0 0 40 36 58 23 28 49 68 157 -3 40 27 3 40 46 54 39 29 30 41 44 53 108 0 0 40 26 22 23 28 53 68 159 -2 40 16 25 40 36 18 39 18 46 41 34 23 109 0 0 40 15 23 23 28 58 69 162 -1 40 5 26 40 25 21 39 7 41 41 23 32 110 0 0 40 4 2 23 29 2 69 164 0 39 54 4 40 14 1 38 56 13 41 12 18 Uncertainty in time = +/- 6 secs Prediction of 2012 Jul 10.0 Data for the target star ------------------------ * name: TYC 1432-00141-1 * constellation : Leo * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 10 53 57.0838 DE: +19 50 26.458 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .017, .022 ) * V mag [mag]: 9.9 * B mag [mag]: 10.5 * Apparent position with proper motion RA(deg): 163.6613671797 DE(deg): 19.7695511008 * Equation of equinoxes (radians) : 0.000058146764924 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (5567) Durisen approx. diameter [km]: 34 approx. diameter ["]: .013 distance from Earth [AU]: 3.67600 * orbital information: orbit source: Preston date of fit: 2012 Jul 10 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 989 number of rejected observations: 11 time covered by the observations: 1953 Mar 21 - 2012 Mar 24 1 sigma uncertainty ellipse (major, minor, PA): 0.041, 0.031, 130° remarks: * orbital elements for (5567) Durisen : Mean anomaly = 183.60220717 deg Arg. of pericenter = 308.62110686 deg Long. of node = 9.06851028 deg Inclination = 16.16960728 deg Eccentricity = 0.22019389 Semimajor axis = 2.93828392 AU Perihelion dist = 2.29129174 AU Mag: H = 11.26, G = 0.15 Epoch of elements : MJD 56246.97900000 TDT (2012 Nov 15.979) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 15 5567 Durisen 23h 29.9m UT 9.9 10 53 57.084 19 50 26.46TYC 1432-00141-1 10.5 17.7 34 1.7 3.676 1.825 -6.98 115.5556 19.843 -176.29 -18.77 23.4988 0.08023 0.30142 10.76406 -2.91816 -0.00533 0.00256 2000 182.236503201211 9.00000308.621107 9.068510 16.1696070.22019389 2.9382839 2.291291811.2 5.00.15 RATE 1.9568760 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.044 0.037 125 3.91 0.037 0 0-2-2 056118.0020121115_0141-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Sep 25, 20:30 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org