IOTA/IOTA-ES occultation update for (859) Bouzareah / 2UCAC 45482160 event on 2010 Feb 14, 02:43 UT Visible from Mexico, W USA, SW Canada Summary ------- On 2010 Feb 14 UT, the 74 km diameter asteroid (859) Bouzareah will occult a 12.6 mag star in the constellation Auriga for observers along a path across Mexico, W USA, SW Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.2 mag to 14.7 mag (the magnitude of the asteroid) for at most 17.4 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 61 * date and approx. time of event: 2010 Feb 14, 02:27 - 2010 Feb 14, 03:07 UT * magnitude of target star: 12.6 * magnitude drop [mag]: 2.2 * estimated maximum duration [s]: 17.4 * Moon: 0 % sunlit, 119° distance * Sun: 120° distance * rough path description: Mexico, W USA, SW Canada The occultation path -------------------- * approximate projected width [km]: 75 * 1 sigma uncertainty interval [path widths]: +/- 1.01 * 1 sigma uncertainty interval [seconds]: +/- 15.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .044 +/- .039) * 1 sigma uncertainty ellipse (major, minor, PA): ( .044", .039", 86° ) * approx speed of asteroid's shadow [km/s]: 4.2480 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of 2UCAC 45482160 by 859 Bouzareah on 2010 Feb 14 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 ' " Longitude Longitude Longitude Longitude - 93 26 44 -50 0 0 3 7 16 0 351 -13 - 93 58 17 - 92 55 10 - 95 1 59 - 91 51 22 - 93 40 55 -49 0 0 3 7 15 1 351 -14 - 94 11 49 - 93 10 0 - 95 14 13 - 92 7 31 - 93 54 43 -48 0 0 3 7 15 2 352 -14 - 94 25 1 - 93 24 25 - 95 26 11 - 92 23 10 - 94 8 10 -47 0 0 3 7 13 3 352 -15 - 94 37 53 - 93 38 27 - 95 37 54 - 92 38 23 - 94 21 17 -46 0 0 3 7 12 4 352 -15 - 94 50 27 - 93 52 7 - 95 49 21 - 92 53 9 - 94 34 5 -45 0 0 3 7 9 5 352 -16 - 95 2 44 - 94 5 26 - 96 0 36 - 93 7 32 - 94 46 36 -44 0 0 3 7 7 6 352 -16 - 95 14 45 - 94 18 26 - 96 11 37 - 93 21 32 - 94 58 49 -43 0 0 3 7 3 7 352 -17 - 95 26 30 - 94 31 7 - 96 22 26 - 93 35 10 - 95 10 47 -42 0 0 3 7 0 8 353 -17 - 95 38 1 - 94 43 32 - 96 33 3 - 93 48 28 - 95 22 29 -41 0 0 3 6 56 9 353 -18 - 95 49 19 - 94 55 40 - 96 43 29 - 94 1 28 - 95 33 58 -40 0 0 3 6 51 10 353 -18 - 96 0 23 - 95 7 32 - 96 53 45 - 94 14 9 - 95 45 13 -39 0 0 3 6 46 11 353 -19 - 96 11 16 - 95 19 11 - 97 3 52 - 94 26 34 - 95 56 16 -38 0 0 3 6 41 12 353 -19 - 96 21 57 - 95 30 35 - 97 13 49 - 94 38 42 - 96 7 7 -37 0 0 3 6 35 13 353 -19 - 96 32 27 - 95 41 47 - 97 23 38 - 94 50 36 - 96 17 47 -36 0 0 3 6 28 14 353 -20 - 96 42 47 - 95 52 46 - 97 33 18 - 95 2 15 - 96 28 16 -35 0 0 3 6 21 16 353 -20 - 96 52 58 - 96 3 34 - 97 42 51 - 95 13 41 - 96 38 35 -34 0 0 3 6 14 17 354 -21 - 97 2 59 - 96 14 11 - 97 52 17 - 95 24 54 - 96 48 45 -33 0 0 3 6 6 18 354 -21 - 97 12 52 - 96 24 38 - 98 1 36 - 95 35 55 - 96 58 46 -32 0 0 3 5 58 19 354 -21 - 97 22 37 - 96 34 55 - 98 10 48 - 95 46 45 - 97 8 39 -31 0 0 3 5 49 20 354 -22 - 97 32 15 - 96 45 3 - 98 19 55 - 95 57 24 - 97 18 24 -30 0 0 3 5 40 21 354 -22 - 97 41 45 - 96 55 3 - 98 28 57 - 96 7 53 - 97 28 2 -29 0 0 3 5 30 22 354 -23 - 97 51 9 - 97 4 55 - 98 37 53 - 96 18 13 - 97 37 33 -28 0 0 3 5 20 23 354 -23 - 98 0 28 - 97 14 39 - 98 46 45 - 96 28 24 - 97 46 58 -27 0 0 3 5 10 24 355 -23 - 98 9 40 - 97 24 16 - 98 55 32 - 96 38 26 - 97 56 17 -26 0 0 3 4 59 25 355 -24 - 98 18 48 - 97 33 47 - 99 4 16 - 96 48 21 - 98 5 31 -25 0 0 3 4 47 26 355 -24 - 98 27 50 - 97 43 13 - 99 12 56 - 96 58 9 - 98 14 41 -24 0 0 3 4 36 27 355 -24 - 98 36 49 - 97 52 32 - 99 21 34 - 97 7 50 - 98 23 45 -23 0 0 3 4 23 28 355 -25 - 98 45 44 - 98 1 47 - 99 30 9 - 97 17 25 - 98 32 46 -22 0 0 3 4 11 29 355 -25 - 98 54 36 - 98 10 58 - 99 38 41 - 97 26 55 - 98 41 44 -21 0 0 3 3 58 30 355 -25 - 99 3 24 - 98 20 4 - 99 47 12 - 97 36 19 - 98 50 38 -20 0 0 3 3 44 31 355 -25 - 99 12 10 - 98 29 7 - 99 55 42 - 97 45 39 - 98 59 30 -19 0 0 3 3 30 32 356 -26 - 99 20 55 - 98 38 7 -100 4 10 - 97 54 54 - 99 8 20 -18 0 0 3 3 16 33 356 -26 - 99 29 37 - 98 47 4 -100 12 38 - 98 4 7 - 99 17 9 -17 0 0 3 3 1 34 356 -26 - 99 38 19 - 98 55 59 -100 21 6 - 98 13 16 - 99 25 56 -16 0 0 3 2 46 35 356 -26 - 99 47 0 - 99 4 53 -100 29 34 - 98 22 22 - 99 34 42 -15 0 0 3 2 30 36 356 -27 - 99 55 40 - 99 13 45 -100 38 3 - 98 31 26 - 99 43 28 -14 0 0 3 2 14 37 356 -27 -100 4 21 - 99 22 36 -100 46 33 - 98 40 29 - 99 52 15 -13 0 0 3 1 58 38 356 -27 -100 13 2 - 99 31 28 -100 55 4 - 98 49 31 -100 1 2 -12 0 0 3 1 41 39 357 -27 -100 21 45 - 99 40 20 -101 3 38 - 98 58 31 -100 9 50 -11 0 0 3 1 24 40 357 -27 -100 30 29 - 99 49 12 -101 12 14 - 99 7 32 -100 18 40 -10 0 0 3 1 7 41 357 -27 -100 39 16 - 99 58 6 -101 20 53 - 99 16 34 -100 27 33 - 9 0 0 3 0 49 42 357 -28 -100 48 5 -100 7 1 -101 29 36 - 99 25 36 -100 36 28 - 8 0 0 3 0 31 43 357 -28 -100 56 57 -100 15 59 -101 38 22 - 99 34 39 -100 45 26 - 7 0 0 3 0 12 44 358 -28 -101 5 53 -100 25 0 -101 47 13 - 99 43 45 -100 54 28 - 6 0 0 2 59 53 45 358 -28 -101 14 53 -100 34 4 -101 56 9 - 99 52 53 -101 3 34 - 5 0 0 2 59 34 46 358 -28 -101 23 58 -100 43 12 -102 5 11 -100 2 5 -101 12 46 - 4 0 0 2 59 14 47 358 -28 -101 33 8 -100 52 24 -102 14 19 -100 11 20 -101 22 3 - 3 0 0 2 58 54 48 358 -28 -101 42 24 -101 1 42 -102 23 34 -100 20 39 -101 31 26 - 2 0 0 2 58 34 49 359 -28 -101 51 47 -101 11 5 -102 32 56 -100 30 3 -101 40 55 - 1 0 0 2 58 13 50 359 -28 -102 1 16 -101 20 35 -102 42 26 -100 39 33 -101 50 32 0 0 0 2 57 52 51 359 -28 -102 10 54 -101 30 12 -102 52 4 -100 49 9 -102 0 17 1 0 0 2 57 31 52 360 -28 -102 20 40 -101 39 56 -103 1 52 -100 58 51 -102 10 11 2 0 0 2 57 10 53 360 -28 -102 30 35 -101 49 49 -103 11 50 -101 8 42 -102 20 15 3 0 0 2 56 48 54 0 -28 -102 40 40 -101 59 50 -103 21 59 -101 18 40 -102 30 28 4 0 0 2 56 25 55 1 -28 -102 50 56 -102 10 2 -103 32 19 -101 28 47 -102 40 52 5 0 0 2 56 3 56 1 -28 -103 1 23 -102 20 23 -103 42 51 -101 39 4 -102 51 29 6 0 0 2 55 40 57 1 -28 -103 12 2 -102 30 57 -103 53 37 -101 49 31 -103 2 17 7 0 0 2 55 17 58 2 -28 -103 22 54 -102 41 42 -104 4 36 -102 0 10 -103 13 20 8 0 0 2 54 54 59 2 -28 -103 34 0 -102 52 40 -104 15 50 -102 11 1 -103 24 36 9 0 0 2 54 30 60 3 -28 -103 45 21 -103 3 53 -104 27 20 -102 22 5 -103 36 8 10 0 0 2 54 6 61 3 -28 -103 56 58 -103 15 20 -104 39 7 -102 33 22 -103 47 57 11 0 0 2 53 42 62 4 -28 -104 8 52 -103 27 3 -104 51 11 -102 44 55 -104 0 2 12 0 0 2 53 17 63 5 -27 -104 21 3 -103 39 3 -105 3 35 -102 56 43 -104 12 26 13 0 0 2 52 53 63 5 -27 -104 33 33 -103 51 21 -105 16 18 -103 8 49 -104 25 10 14 0 0 2 52 28 64 6 -27 -104 46 24 -104 3 57 -105 29 22 -103 21 12 -104 38 14 15 0 0 2 52 3 65 7 -27 -104 59 35 -104 16 54 -105 42 49 -103 33 54 -104 51 40 16 0 0 2 51 37 66 8 -27 -105 13 10 -104 30 13 -105 56 40 -103 46 57 -105 5 30 17 0 0 2 51 11 67 9 -27 -105 27 8 -104 43 54 -106 10 55 -104 0 22 -105 19 45 18 0 0 2 50 46 68 10 -26 -105 41 32 -104 58 0 -106 25 38 -104 14 9 -105 34 25 19 0 0 2 50 20 69 11 -26 -105 56 22 -105 12 31 -106 40 48 -104 28 21 -105 49 34 20 0 0 2 49 53 70 12 -26 -106 11 41 -105 27 29 -106 56 28 -104 42 59 -106 5 12 21 0 0 2 49 27 71 14 -26 -106 27 30 -105 42 56 -107 12 40 -104 58 4 -106 21 21 22 0 0 2 49 0 72 15 -25 -106 43 51 -105 58 54 -107 29 25 -105 13 38 -106 38 3 23 0 0 2 48 33 73 17 -25 -107 0 46 -106 15 23 -107 46 45 -105 29 44 -106 55 21 24 0 0 2 48 6 73 19 -25 -107 18 16 -106 32 28 -108 4 43 -105 46 22 -107 13 15 25 0 0 2 47 39 74 21 -24 -107 36 25 -106 50 8 -108 23 21 -106 3 35 -107 31 49 26 0 0 2 47 11 75 24 -24 -107 55 14 -107 8 27 -108 42 40 -106 21 24 -107 51 5 27 0 0 2 46 44 76 27 -24 -108 14 45 -107 27 27 -109 2 44 -106 39 53 -108 11 5 28 0 0 2 46 16 76 30 -23 -108 35 2 -107 47 11 -109 23 36 -106 59 4 -108 31 52 29 0 0 2 45 48 77 33 -23 -108 56 7 -108 7 41 -109 45 18 -107 18 58 -108 53 30 30 0 0 2 45 20 77 37 -23 -109 18 4 -108 29 0 -110 7 53 -107 39 40 -109 16 1 31 0 0 2 44 52 78 42 -22 -109 40 55 -108 51 11 -110 31 25 -108 1 11 -109 39 28 32 0 0 2 44 23 78 46 -22 -110 4 44 -109 14 17 -110 55 57 -108 23 36 -110 3 56 33 0 0 2 43 55 79 51 -22 -110 29 34 -109 38 23 -111 21 34 -108 46 58 -110 29 29 34 0 0 2 43 26 79 56 -21 -110 55 31 -110 3 32 -111 48 20 -109 11 20 -110 56 10 35 0 0 2 42 57 79 62 -21 -111 22 38 -110 29 48 -112 16 20 -109 36 46 -111 24 6 36 0 0 2 42 28 79 67 -20 -111 51 0 -110 57 16 -112 45 38 -110 3 21 -111 53 19 37 0 0 2 41 59 79 73 -20 -112 20 43 -111 26 2 -113 16 20 -110 31 10 -112 23 58 38 0 0 2 41 30 79 78 -19 -112 51 52 -111 56 10 -113 48 33 -111 0 18 Latitude Latitude Latitude Latitude -114 0 0 40 51 4 2 40 6 77 91 -18 40 1 50 41 39 44 38 20 39 43 16 30 -115 0 0 42 26 31 2 39 19 76 97 -17 41 39 38 43 12 56 40 3 23 44 45 19 -116 0 0 43 54 27 2 38 35 75 102 -16 43 9 39 44 38 51 41 37 47 46 7 18 -117 0 0 45 15 43 2 37 54 74 105 -15 44 32 46 45 58 18 43 4 50 47 23 13 -118 0 0 46 31 2 2 37 15 73 107 -15 45 49 46 47 11 58 44 25 21 48 33 42 -119 0 0 47 41 2 2 36 40 72 109 -14 47 1 17 48 20 29 45 40 3 49 39 19 -120 0 0 48 46 14 2 36 6 71 111 -13 48 7 52 49 24 20 46 49 32 50 40 31 -121 0 0 49 47 7 2 35 35 70 112 -13 49 10 1 50 23 58 47 54 18 51 37 44 -122 0 0 50 44 3 2 35 5 69 113 -12 50 8 7 51 19 47 48 54 49 52 31 19 -123 0 0 51 37 25 2 34 37 68 113 -11 51 2 32 52 12 6 49 51 27 53 21 35 -124 0 0 52 27 31 2 34 10 67 113 -11 51 53 37 53 1 14 50 44 34 54 8 49 -125 0 0 53 14 36 2 33 45 66 114 -10 52 41 37 53 47 26 51 34 26 54 53 16 -126 0 0 53 58 56 2 33 21 65 114 -10 53 26 47 54 30 56 52 21 21 55 35 8 -127 0 0 54 40 44 2 32 58 64 114 -9 54 9 21 55 11 57 53 5 33 56 14 38 -128 0 0 55 20 10 2 32 36 63 113 -9 54 49 31 55 50 40 53 47 12 56 51 56 -129 0 0 55 57 24 2 32 16 62 113 -8 55 27 27 56 27 15 54 26 32 57 27 11 -130 0 0 56 32 37 2 31 56 62 113 -8 56 3 18 57 1 50 55 3 42 58 0 32 -131 0 0 57 5 57 2 31 37 61 112 -7 56 37 13 57 34 35 55 38 50 58 32 7 -132 0 0 57 37 30 2 31 19 60 112 -7 57 9 19 58 5 35 56 12 6 59 2 1 -133 0 0 58 7 24 2 31 1 59 112 -6 57 39 45 58 34 58 56 43 35 59 30 23 -134 0 0 58 35 45 2 30 44 59 111 -6 58 8 35 59 2 49 57 13 26 59 57 17 -135 0 0 59 2 38 2 30 28 58 111 -6 58 35 56 59 29 15 57 41 44 60 22 48 -136 0 0 59 28 8 2 30 12 57 110 -5 59 1 52 59 54 20 58 8 34 60 47 1 -137 0 0 59 52 21 2 29 57 57 109 -5 59 26 30 60 18 8 58 34 2 61 10 1 -138 0 0 60 15 21 2 29 43 56 109 -4 59 49 52 60 40 45 58 58 12 61 31 52 -139 0 0 60 37 10 2 29 28 56 108 -4 60 12 4 61 2 13 59 21 9 61 52 37 -140 0 0 60 57 54 2 29 15 55 107 -4 60 33 8 61 22 36 59 42 55 62 12 19 -141 0 0 61 17 34 2 29 2 54 107 -3 60 53 8 61 41 57 60 3 36 62 31 2 -142 0 0 61 36 16 2 28 49 54 106 -3 61 12 8 62 0 20 60 23 13 62 48 49 -143 0 0 61 54 0 2 28 36 53 105 -3 61 30 9 62 17 47 60 41 50 63 5 41 -144 0 0 62 10 50 2 28 24 53 105 -2 61 47 16 62 34 21 60 59 30 63 21 42 -145 0 0 62 26 48 2 28 12 52 104 -2 62 3 29 62 50 3 61 16 15 63 36 54 -146 0 0 62 41 56 2 28 1 52 103 -2 62 18 52 63 4 57 61 32 8 63 51 19 -147 0 0 62 56 16 2 27 50 51 102 -1 62 33 26 63 19 4 61 47 11 64 4 58 -148 0 0 63 9 51 2 27 39 51 102 -1 62 47 14 63 32 25 62 1 25 64 17 54 -149 0 0 63 22 42 2 27 28 50 101 -1 63 0 17 63 45 4 62 14 53 64 30 8 -150 0 0 63 34 50 2 27 18 50 100 0 63 12 37 63 57 0 62 27 37 64 41 42 -151 0 0 63 46 17 2 27 8 49 99 0 63 24 15 64 8 17 62 39 37 64 52 37 Uncertainty in time = +/- 18 secs Prediction of 2010 Feb 4.0 Data for the target star ------------------------ * name: 2UCAC 45482160 * constellation : Auriga * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 05 43 28.5400 DE: +39 16 18.769 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .035, .035 ) * V mag [mag]: 12.6 * B mag [mag]: 0.0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (859) Bouzareah approx. diameter [km]: 74 approx. diameter ["]: .043 distance from Earth [AU]: 2.37000 * orbital information: orbit source: Preston date of fit: 2010 Feb 03 source of used astrometry: FASTT TMO MPC (via Astdys) number of used observations: 711 number of rejected observations: 55 time covered by the observations: 1916 Sep 21 - 2009 Dec 15 1 sigma uncertainty ellipse (major, minor, PA): 0.026, 0.018, 78° remarks: * orbital elements for (859) Bouzareah : Mean anomaly = 41.88787727 deg Arg. of pericenter = 17.32398056 deg Long. of node = 35.85334490 deg Inclination = 13.51028942 deg Eccentricity = 0.10570191 Semimajor axis = 3.22719246 AU Perihelion dist = 2.88607204 AU Mag: H = 9.63, G = 0.15 Epoch of elements : MJD 55241.11300000 TDT (2010 Feb 14.113) ------ occelmnt file for Occult BEGIN ----------------------------------- 2010 Feb 14 859 Bouzareah 2h 42.7m UT 12.6 5 43 28.540 39 16 18.772UCAC 45482160 0.0 14.7 74 17.4 2.370 0.238 -8.46 -98.8392 39.274 142.86 -13.09 2.7124 -0.17631 -0.05788 0.73970 -2.28074 0.00513 -0.00071 2000 41.6986592010 213.00000 17.323981 35.853345 13.5102890.10570191 3.2271925 2.8860721 9.6 5.00.15 RATE 1.7000700 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.044 0.039 86 2.01 0.043 0 055231.0020100214_482160 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2010 Feb 03, 18:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org