IOTA/IOTA-ES occultation update for (2434) Bateson / TYC 6411-00437-1 event on 2009 Jul 06, 16:31 UT Visible from Summary ------- On 2009 Jul 06 UT, the 20 km diameter asteroid (2434) Bateson will occult a 9.9 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.8 mag to 15.7 mag (the magnitude of the asteroid) for at most 3.2 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 10 * date and approx. time of event: 2009 Jul 06, 16:16 - 2009 Jul 06, 16:40 UT * magnitude of target star: 9.9 * magnitude drop [mag]: 5.8 * estimated maximum duration [s]: 3.2 * Moon: 100 % sunlit, 72° distance * Sun: 114° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 21 * 1 sigma uncertainty interval [path widths]: +/- 6.95 * 1 sigma uncertainty interval [seconds]: +/- 20.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .100 +/- .093) * 1 sigma uncertainty ellipse (major, minor, PA): ( .122", .061", 48° ) * approx speed of asteroid's shadow [km/s]: 6.2803 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6411-00437-1 by 2434 Bateson on 2009 Jul 6 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 94 0 0 -15 2 22 16 16 15 1 111 -67 -15 8 39 -14 56 6 -16 36 22 .. .. .. 95 0 0 -15 25 11 16 16 16 2 111 -68 -15 31 28 -15 18 55 -16 59 17 .. .. .. 96 0 0 -15 48 8 16 16 17 3 110 -69 -15 54 26 -15 41 52 -17 22 20 .. .. .. 97 0 0 -16 11 13 16 16 18 4 110 -70 -16 17 30 -16 4 56 -17 45 30 .. .. .. 98 0 0 -16 34 24 16 16 19 5 110 -71 -16 40 42 -16 28 7 -18 8 47 .. .. .. 99 0 0 -16 57 42 16 16 21 6 110 -72 -17 4 0 -16 51 24 -18 32 9 .. .. .. 100 0 0 -17 21 6 16 16 24 7 109 -73 -17 27 24 -17 14 47 -18 55 38 .. .. .. 101 0 0 -17 44 34 16 16 26 8 109 -74 -17 50 53 -17 38 16 -19 19 11 -16 11 3 102 0 0 -18 8 8 16 16 29 9 109 -75 -18 14 27 -18 1 49 -19 42 48 -16 34 32 103 0 0 -18 31 45 16 16 33 10 108 -76 -18 38 4 -18 25 26 -20 6 30 -16 58 6 104 0 0 -18 55 26 16 16 36 11 108 -77 -19 1 45 -18 49 6 -20 30 14 -17 21 43 105 0 0 -19 19 9 16 16 40 12 108 -78 -19 25 29 -19 12 50 -20 54 1 -17 45 23 106 0 0 -19 42 55 16 16 45 13 107 -79 -19 49 15 -19 36 35 -21 17 49 -18 9 6 107 0 0 -20 6 42 16 16 49 14 107 -80 -20 13 3 -20 0 22 -21 41 39 -18 32 51 108 0 0 -20 30 31 16 16 54 15 107 -81 -20 36 51 -20 24 10 -22 5 29 -18 56 37 109 0 0 -20 54 19 16 17 0 16 106 -82 -21 0 39 -20 47 59 -22 29 19 -19 20 24 110 0 0 -21 18 7 16 17 5 17 106 -83 -21 24 28 -21 11 47 -22 53 9 -19 44 11 111 0 0 -21 41 54 16 17 11 18 105 -84 -21 48 15 -21 35 34 -23 16 57 -20 7 57 112 0 0 -22 5 40 16 17 18 19 105 -85 -22 12 0 -21 59 19 -23 40 43 -20 31 42 113 0 0 -22 29 23 16 17 24 21 104 -86 -22 35 44 -22 23 3 -24 4 26 -20 55 25 114 0 0 -22 53 3 16 17 31 22 104 -87 -22 59 24 -22 46 43 -24 28 6 -21 19 5 115 0 0 -23 16 40 16 17 39 23 104 -87 -23 23 1 -23 10 20 -24 51 43 -21 42 42 116 0 0 -23 40 13 16 17 46 24 103 -88 -23 46 33 -23 33 52 -25 15 14 -22 6 16 117 0 0 -24 3 41 16 17 54 25 103 -88 -24 10 1 -23 57 20 -25 38 41 -22 29 45 118 0 0 -24 27 3 16 18 2 26 102 -87 -24 33 23 -24 20 43 -26 2 1 -22 53 9 119 0 0 -24 50 20 16 18 11 27 102 -86 -24 56 40 -24 44 0 -26 25 16 -23 16 28 120 0 0 -25 13 29 16 18 20 28 101 -86 -25 19 49 -25 7 10 -26 48 23 -23 39 40 121 0 0 -25 36 32 16 18 29 29 100 -85 -25 42 52 -25 30 12 -27 11 23 -24 2 45 122 0 0 -25 59 27 16 18 38 30 100 -84 -26 5 46 -25 53 8 -27 34 14 -24 25 43 123 0 0 -26 22 13 16 18 48 31 99 -83 -26 28 33 -26 15 54 -27 56 57 -24 48 33 124 0 0 -26 44 51 16 18 57 31 99 -82 -26 51 10 -26 38 32 -28 19 30 -25 11 15 125 0 0 -27 7 19 16 19 7 32 98 -81 -27 13 37 -27 1 0 -28 41 53 -25 33 47 126 0 0 -27 29 36 16 19 18 33 97 -80 -27 35 55 -27 23 18 -29 4 6 -25 56 9 127 0 0 -27 51 44 16 19 28 34 97 -79 -27 58 2 -27 45 26 -29 26 9 -26 18 21 128 0 0 -28 13 40 16 19 39 35 96 -78 -28 19 58 -28 7 22 -29 47 59 -26 40 23 129 0 0 -28 35 24 16 19 50 36 95 -77 -28 41 42 -28 29 7 -30 9 38 -27 2 13 130 0 0 -28 56 56 16 20 1 37 95 -76 -29 3 13 -28 50 40 -30 31 4 -27 23 51 131 0 0 -29 18 16 16 20 12 38 94 -75 -29 24 33 -29 12 0 -30 52 17 -27 45 17 132 0 0 -29 39 23 16 20 24 39 93 -74 -29 45 39 -29 33 7 -31 13 17 -28 6 30 133 0 0 -30 0 16 16 20 36 40 92 -73 -30 6 31 -29 54 0 -31 34 2 -28 27 29 134 0 0 -30 20 55 16 20 48 41 92 -72 -30 27 10 -30 14 40 -31 54 34 -28 48 15 135 0 0 -30 41 19 16 21 0 42 91 -71 -30 47 34 -30 35 5 -32 14 51 -29 8 47 136 0 0 -31 1 29 16 21 12 43 90 -70 -31 7 43 -30 55 15 -32 34 53 -29 29 5 137 0 0 -31 21 23 16 21 25 44 89 -69 -31 27 37 -31 15 10 -32 54 39 -29 49 7 138 0 0 -31 41 2 16 21 37 45 88 -68 -31 47 15 -31 34 49 -33 14 10 -30 8 54 139 0 0 -32 0 25 16 21 50 45 87 -67 -32 6 38 -31 54 13 -33 33 24 -30 28 25 140 0 0 -32 19 32 16 22 3 46 86 -66 -32 25 44 -32 13 20 -33 52 22 -30 47 40 141 0 0 -32 38 22 16 22 16 47 86 -65 -32 44 33 -32 32 11 -34 11 3 -31 6 39 142 0 0 -32 56 55 16 22 29 48 85 -64 -33 3 5 -32 50 44 -34 29 27 -31 25 20 143 0 0 -33 15 11 16 22 42 49 84 -64 -33 21 21 -33 9 1 -34 47 33 -31 43 45 144 0 0 -33 33 9 16 22 56 50 82 -63 -33 39 18 -33 26 59 -35 5 22 -32 1 52 145 0 0 -33 50 49 16 23 9 51 81 -62 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59 -35 42 57 159 0 0 -37 25 12 16 26 26 61 62 -49 -37 31 12 -37 19 13 -38 55 0 -35 56 17 160 0 0 -37 38 4 16 26 40 62 60 -48 -37 44 3 -37 32 5 -39 7 42 -36 9 17 161 0 0 -37 50 34 16 26 55 62 59 -47 -37 56 33 -37 44 36 -39 20 4 -36 21 57 162 0 0 -38 2 45 16 27 9 63 57 -47 -38 8 43 -37 56 47 -39 32 5 -36 34 17 163 0 0 -38 14 35 16 27 24 63 55 -46 -38 20 33 -38 8 38 -39 43 46 -36 46 16 164 0 0 -38 26 5 16 27 38 64 53 -45 -38 32 2 -38 20 8 -39 55 7 -36 57 54 165 0 0 -38 37 14 16 27 53 64 51 -44 -38 43 11 -38 31 18 -40 6 8 -37 9 12 166 0 0 -38 48 3 16 28 7 65 49 -43 -38 53 59 -38 42 8 -40 16 48 -37 20 9 167 0 0 -38 58 32 16 28 22 65 47 -42 -39 4 27 -38 52 37 -40 27 8 -37 30 46 168 0 0 -39 8 40 16 28 36 66 44 -42 -39 14 34 -39 2 45 -40 37 8 -37 41 2 169 0 0 -39 18 27 16 28 51 66 42 -41 -39 24 21 -39 12 33 -40 46 47 -37 50 57 170 0 0 -39 27 54 16 29 5 67 40 -40 -39 33 47 -39 22 0 -40 56 6 -38 0 31 171 0 0 -39 37 0 16 29 20 67 37 -39 -39 42 53 -39 31 7 -41 5 5 -38 9 45 172 0 0 -39 45 45 16 29 34 67 35 -38 -39 51 38 -39 39 53 -41 13 43 -38 18 37 173 0 0 -39 54 11 16 29 49 68 32 -37 -40 0 3 -39 48 19 -41 22 1 -38 27 9 174 0 0 -40 2 15 16 30 3 68 30 -37 -40 8 7 -39 56 24 -41 29 59 -38 35 21 175 0 0 -40 9 59 16 30 18 68 27 -36 -40 15 50 -40 4 8 -41 37 36 -38 43 11 176 0 0 -40 17 23 16 30 32 69 24 -35 -40 23 13 -40 11 32 -41 44 53 -38 50 41 177 0 0 -40 24 25 16 30 47 69 22 -34 -40 30 16 -40 18 35 -41 51 50 -38 57 50 178 0 0 -40 31 8 16 31 1 69 19 -33 -40 36 58 -40 25 18 -41 58 27 -39 4 38 179 0 0 -40 37 30 16 31 15 69 16 -33 -40 43 20 -40 31 40 -42 4 43 -39 11 5 180 0 0 -40 43 31 16 31 30 69 13 -32 -40 49 21 -40 37 42 -42 10 39 -39 17 12 -179 0 0 -40 49 12 16 31 44 69 10 -31 -40 55 1 -40 43 24 -42 16 15 -39 22 58 -178 0 0 -40 54 33 16 31 58 69 8 -30 -41 0 21 -40 48 44 -42 21 31 -39 28 23 -177 0 0 -40 59 33 16 32 13 69 5 -29 -41 5 21 -40 53 45 -42 26 27 -39 33 27 -176 0 0 -41 4 13 16 32 27 69 2 -29 -41 10 1 -40 58 25 -42 31 2 -39 38 11 -175 0 0 -41 8 32 16 32 41 69 359 -28 -41 14 20 -41 2 44 -42 35 18 -39 42 34 -174 0 0 -41 12 31 16 32 55 69 356 -27 -41 18 19 -41 6 44 -42 39 13 -39 46 36 -173 0 0 -41 16 10 16 33 9 69 353 -26 -41 21 57 -41 10 22 -42 42 49 -39 50 18 -172 0 0 -41 19 28 16 33 24 69 351 -26 -41 25 15 -41 13 41 -42 46 4 -39 53 39 -171 0 0 -41 22 26 16 33 38 69 348 -25 -41 28 13 -41 16 39 -42 48 59 -39 56 40 -170 0 0 -41 25 4 16 33 52 68 345 -24 -41 30 51 -41 19 17 -42 51 35 -39 59 20 -169 0 0 -41 27 21 16 34 6 68 343 -23 -41 33 8 -41 21 35 -42 53 50 -40 1 39 -168 0 0 -41 29 18 16 34 20 68 340 -22 -41 35 5 -41 23 32 -42 55 46 -40 3 38 -167 0 0 -41 30 55 16 34 34 68 338 -22 -41 36 42 -41 25 9 -42 57 22 -40 5 16 -166 0 0 -41 32 12 16 34 47 67 335 -21 -41 37 59 -41 26 26 -42 58 37 -40 6 34 -165 0 0 -41 33 9 16 35 1 67 333 -20 -41 38 55 -41 27 23 -42 59 33 -40 7 32 -164 0 0 -41 33 45 16 35 15 67 330 -19 -41 39 32 -41 27 59 -43 0 9 -40 8 8 -163 0 0 -41 34 1 16 35 29 66 328 -19 -41 39 48 -41 28 15 -43 0 25 -40 8 25 -162 0 0 -41 33 57 16 35 43 66 326 -18 -41 39 44 -41 28 11 -43 0 22 -40 8 21 -161 0 0 -41 33 33 16 35 56 65 324 -17 -41 39 20 -41 27 47 -42 59 58 -40 7 56 -160 0 0 -41 32 49 16 36 10 65 322 -16 -41 38 36 -41 27 3 -42 59 15 -40 7 11 -159 0 0 -41 31 45 16 36 23 64 320 -15 -41 37 31 -41 25 59 -42 58 12 -40 6 5 -158 0 0 -41 30 20 16 36 37 64 318 -15 -41 36 7 -41 24 34 -42 56 49 -40 4 40 -157 0 0 -41 28 36 16 36 50 63 316 -14 -41 34 23 -41 22 49 -42 55 6 -40 2 53 -156 0 0 -41 26 31 16 37 4 63 314 -13 -41 32 18 -41 20 44 -42 53 3 -40 0 47 -155 0 0 -41 24 6 16 37 17 62 312 -12 -41 29 54 -41 18 20 -42 50 41 -39 58 19 -154 0 0 -41 21 22 16 37 30 62 310 -12 -41 27 9 -41 15 35 -42 47 59 -39 55 32 -153 0 0 -41 18 17 16 37 43 61 309 -11 -41 24 4 -41 12 29 -42 44 57 -39 52 24 -152 0 0 -41 14 52 16 37 57 60 307 -10 -41 20 39 -41 9 4 -42 41 35 -39 48 56 -151 0 0 -41 11 6 16 38 10 60 305 -9 -41 16 54 -41 5 19 -42 37 54 -39 45 7 -150 0 0 -41 7 1 16 38 23 59 304 -9 -41 12 49 -41 1 13 -42 33 52 -39 40 58 -149 0 0 -41 2 36 16 38 36 59 302 -8 -41 8 24 -40 56 48 -42 29 31 -39 36 29 -148 0 0 -40 57 51 16 38 49 58 301 -7 -41 3 39 -40 52 2 -42 24 50 -39 31 39 -147 0 0 -40 52 45 16 39 2 57 299 -6 -40 58 34 -40 46 56 -42 19 50 -39 26 29 -146 0 0 -40 47 20 16 39 14 57 298 -6 -40 53 9 -40 41 30 -42 14 29 -39 20 59 -145 0 0 -40 41 34 16 39 27 56 297 -5 -40 47 24 -40 35 45 -42 8 49 -39 15 8 -144 0 0 -40 35 28 16 39 40 55 295 -4 -40 41 19 -40 29 39 -42 2 49 -39 8 57 -143 0 0 -40 29 3 16 39 52 55 294 -3 -40 34 53 -40 23 12 -41 56 29 -39 2 26 -142 0 0 -40 22 17 16 40 5 54 293 -3 -40 28 8 -40 16 26 -41 49 49 -38 55 34 -141 0 0 -40 15 11 16 40 17 53 292 -2 -40 21 3 -40 9 20 -41 42 50 -38 48 22 -140 0 0 -40 7 46 16 40 29 53 290 -1 -40 13 37 -40 1 54 -41 35 30 -38 40 50 -139 0 0 -40 0 0 16 40 42 52 289 0 -40 5 52 -39 54 8 -41 27 51 -38 32 58 Uncertainty in time = +/- 28 secs [Prediction of 2008 Apr 25.0] Data for the target star ------------------------ * name: TYC 6411-00437-1 * constellation : Aquarius * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 23 49 49.5533 DE: -20 30 08.951 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .023, .022 ) * V mag [mag]: 9.9 * B mag [mag]: 10.9 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2434) Bateson approx. diameter [km]: 20 approx. diameter ["]: .014 distance from Earth [AU]: 1.97500 * orbital information: orbit source: Preston date of fit: 2008 Apr 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 556 number of rejected observations: 16 time covered by the observations: 1932 Apr 24 - 2008 Apr 15 1 sigma uncertainty ellipse (major, minor, PA): 0.120, 0.058, 47° remarks: * orbital elements for (2434) Bateson : Mean anomaly = 9.69102428 deg Arg. of pericenter = 285.41890183 deg Long. of node = 27.39410311 deg Inclination = 15.62183998 deg Eccentricity = 0.17195022 Semimajor axis = 3.08245964 AU Perihelion dist = 2.55243003 AU Mag: H = 11.18, G = 0.15 Epoch of elements : MJD 55018.68900000 TDT (2009 Jul 06.689) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Jul 6 2434 Bateson 16h 32.1m UT 9.9 23 49 49.553-20 30 8.95TYC 6411-00437-1 10.9 15.7 20 3.2 1.975 1.118 -1.31 -175.3659 -20.503 -66.82 22.62 16.5355 -0.02770 -0.34709 3.53260 -0.29378 -0.00476 -0.00140 2000 8.1085822009 628.00000285.418902 27.394103 15.6218400.17195022 3.0824596 2.552430011.1 5.00.15 RATE 1.8212020 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.122 0.061 48 7.95 0.097 0 54581.5020090706_0437-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Apr 25, 07:27 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org