IOTA/IOTA-ES occultation update for (1116) Catriona / UCAC2 47529088 event on 2012 Nov 10, 00:30 UT Visible from Russia, SW Asia, Arabia, Africa Summary ------- On 2012 Nov 10 UT, the 37 km diameter asteroid (1116) Catriona will occult a 11.4 mag star in the constellation Lynx for observers along a path across Russia, SW Asia, Arabia, Africa. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.4 mag to 13.6 mag (the magnitude of the asteroid) for at most 4.7 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: 33 * date and approx. time of event: 2012 Nov 10, 00:16 - 2012 Nov 10, 00:39 UT * geocentric midpoint of event [JD]: 2456241.52082083 * magnitude of target star: 11.4 * magnitude drop [mag]: 2.4 * estimated maximum duration [s]: 4.7 * Moon: 21 % sunlit, 75° distance * Sun: 121° distance * rough path description: Russia, SW Asia, Arabia, Africa The occultation path -------------------- * approximate projected width [km]: 37 * 1 sigma uncertainty interval [path widths]: +/- 2.02 * 1 sigma uncertainty interval [seconds]: +/- 8.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .069 +/- .062) * 1 sigma uncertainty ellipse (major, minor, PA): ( .069", .062", 94° ) * approx speed of asteroid's shadow [km/s]: 7.7578 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC2 47529088 by 1116 Catriona on 2012 Nov 10 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 16 6 55 -36 0 0 0 16 19 1 25 -32 16 20 31 15 53 18 17 15 17 14 58 7 16 41 2 -35 0 0 0 16 19 2 25 -33 16 54 25 16 27 37 17 48 22 15 33 17 17 14 9 -34 0 0 0 16 20 3 25 -34 17 27 21 17 0 57 18 20 31 16 7 25 17 46 22 -33 0 0 0 16 20 4 24 -34 17 59 23 17 33 21 18 51 48 16 40 35 18 17 42 -32 0 0 0 16 22 5 24 -35 18 30 32 18 4 51 19 22 16 17 12 49 18 48 14 -31 0 0 0 16 23 6 24 -35 19 0 54 18 35 33 19 51 57 17 44 11 19 17 59 -30 0 0 0 16 25 7 23 -36 19 30 30 19 5 28 20 20 56 18 14 45 19 47 1 -29 0 0 0 16 27 8 23 -37 19 59 22 19 34 38 20 49 13 18 44 32 20 15 21 -28 0 0 0 16 29 9 23 -37 20 27 34 20 3 7 21 16 51 19 13 36 20 43 3 -27 0 0 0 16 32 11 23 -38 20 55 8 20 30 57 21 43 53 19 41 58 21 10 8 -26 0 0 0 16 35 12 23 -38 21 22 6 20 58 10 22 10 20 20 9 42 21 36 39 -25 0 0 0 16 38 13 22 -39 21 48 30 21 24 48 22 36 16 20 36 49 22 2 37 -24 0 0 0 16 42 14 22 -39 22 14 21 21 50 53 23 1 40 21 3 22 22 28 5 -23 0 0 0 16 46 15 22 -40 22 39 42 22 16 27 23 26 36 21 29 22 22 53 3 -22 0 0 0 16 50 16 22 -40 23 4 35 22 41 31 23 51 4 21 54 51 23 17 34 -21 0 0 0 16 54 17 22 -41 23 29 0 23 6 8 24 15 7 22 19 51 23 41 39 -20 0 0 0 16 59 18 21 -41 23 53 0 23 30 18 24 38 45 22 44 23 24 5 20 -19 0 0 0 17 3 19 21 -42 24 16 36 23 54 4 25 2 1 23 8 30 24 28 38 -18 0 0 0 17 9 20 21 -42 24 39 49 24 17 27 25 24 55 23 32 12 24 51 34 -17 0 0 0 17 14 21 21 -43 25 2 41 24 40 28 25 47 29 23 55 31 25 14 10 -16 0 0 0 17 20 22 21 -43 25 25 13 25 3 8 26 9 45 24 18 28 25 36 27 -15 0 0 0 17 26 23 21 -44 25 47 26 25 25 29 26 31 43 24 41 4 25 58 26 -14 0 0 0 17 32 25 21 -44 26 9 21 25 47 31 26 53 24 25 3 22 26 20 9 -13 0 0 0 17 38 26 21 -44 26 31 0 26 9 17 27 14 50 25 25 21 26 41 36 -12 0 0 0 17 45 27 21 -45 26 52 24 26 30 47 27 36 1 25 47 3 27 2 48 -11 0 0 0 17 52 28 21 -45 27 13 34 26 52 2 27 57 0 26 8 30 27 23 47 -10 0 0 0 17 59 29 20 -45 27 34 30 27 13 4 28 17 46 26 29 42 27 44 33 - 9 0 0 0 18 6 30 20 -46 27 55 14 27 33 52 28 38 21 26 50 41 28 5 8 - 8 0 0 0 18 14 31 20 -46 28 15 47 27 54 30 28 58 46 27 11 26 28 25 33 - 7 0 0 0 18 22 32 20 -46 28 36 10 28 14 56 29 19 1 27 32 0 28 45 48 - 6 0 0 0 18 30 33 20 -46 28 56 24 28 35 13 29 39 8 27 52 24 29 5 55 - 5 0 0 0 18 39 34 20 -47 29 16 29 28 55 21 29 59 8 28 12 38 29 25 54 - 4 0 0 0 18 47 35 20 -47 29 36 27 29 15 21 30 19 2 28 32 43 29 45 46 - 3 0 0 0 18 56 36 20 -47 29 56 18 29 35 14 30 38 49 28 52 40 30 5 33 - 2 0 0 0 19 5 37 20 -47 30 16 4 29 55 2 30 58 32 29 12 31 30 25 15 - 1 0 0 0 19 14 38 20 -47 30 35 45 30 14 44 31 18 12 29 32 15 30 44 52 0 0 0 0 19 24 39 20 -47 30 55 23 30 34 22 31 37 48 29 51 54 31 4 27 1 0 0 0 19 34 40 20 -47 31 14 57 30 53 57 31 57 23 30 11 30 31 24 0 2 0 0 0 19 44 41 20 -48 31 34 30 31 13 29 32 16 56 30 31 2 31 43 31 3 0 0 0 19 54 43 20 -48 31 54 2 31 33 0 32 36 30 30 50 31 32 3 2 4 0 0 0 20 4 44 20 -48 32 13 33 31 52 31 32 56 4 31 9 59 32 22 34 5 0 0 0 20 15 45 20 -48 32 33 6 32 12 1 33 15 40 31 29 27 32 42 7 6 0 0 0 20 26 46 20 -48 32 52 40 32 31 33 33 35 18 31 48 55 33 1 42 7 0 0 0 20 37 47 20 -48 33 12 17 32 51 8 33 55 0 32 8 24 33 21 21 8 0 0 0 20 48 48 20 -48 33 31 57 33 10 45 34 14 47 32 27 56 33 41 5 9 0 0 0 20 59 49 20 -47 33 51 42 33 30 27 34 34 39 32 47 31 34 0 53 10 0 0 0 21 11 50 20 -47 34 11 33 33 50 14 34 54 38 33 7 10 34 20 48 11 0 0 0 21 22 51 20 -47 34 31 30 34 10 7 35 14 44 33 26 54 34 40 51 12 0 0 0 21 34 52 21 -47 34 51 35 34 30 7 35 34 59 33 46 44 35 1 2 13 0 0 0 21 47 53 21 -47 35 11 49 34 50 15 35 55 24 34 6 42 35 21 23 14 0 0 0 21 59 54 21 -47 35 32 13 35 10 33 36 16 0 34 26 48 35 41 54 15 0 0 0 22 11 55 21 -47 35 52 48 35 31 1 36 36 48 34 47 4 36 2 38 16 0 0 0 22 24 56 21 -46 36 13 34 35 51 41 36 57 49 35 7 30 36 23 34 17 0 0 0 22 37 57 21 -46 36 34 35 36 12 34 37 19 5 35 28 8 36 44 46 18 0 0 0 22 50 58 21 -46 36 55 50 36 33 41 37 40 37 35 48 59 37 6 13 19 0 0 0 23 3 60 21 -46 37 17 21 36 55 4 38 2 26 36 10 4 37 27 57 20 0 0 0 23 16 61 21 -45 37 39 10 37 16 43 38 24 33 36 31 25 37 49 59 21 0 0 0 23 30 62 22 -45 38 1 18 37 38 41 38 47 1 36 53 3 38 12 22 22 0 0 0 23 43 63 22 -45 38 23 46 38 0 59 39 9 51 37 15 0 38 35 7 23 0 0 0 23 57 64 22 -44 38 46 36 38 23 38 39 33 5 37 37 17 38 58 15 24 0 0 0 24 11 65 22 -44 39 9 51 38 46 40 39 56 43 37 59 55 39 21 49 25 0 0 0 24 25 66 22 -43 39 33 30 39 10 7 40 20 49 38 22 57 39 45 49 26 0 0 0 24 39 67 22 -43 39 57 38 39 34 1 40 45 24 38 46 24 40 10 19 27 0 0 0 24 54 68 23 -43 40 22 14 39 58 23 41 10 30 39 10 18 40 35 19 28 0 0 0 25 8 69 23 -42 40 47 23 40 23 17 41 36 9 39 34 41 41 0 54 29 0 0 0 25 23 70 23 -42 41 13 5 40 48 43 42 2 24 39 59 35 41 27 4 30 0 0 0 25 37 71 23 -41 41 39 23 41 14 44 42 29 17 40 25 3 41 53 52 31 0 0 0 25 52 72 23 -41 42 6 21 41 41 24 42 56 51 40 51 6 42 21 22 32 0 0 0 26 7 73 24 -40 42 34 0 42 8 44 43 25 9 41 17 48 42 49 35 33 0 0 0 26 22 74 24 -40 43 2 23 42 36 47 43 54 14 41 45 12 43 18 36 34 0 0 0 26 38 76 24 -39 43 31 35 43 5 37 44 24 9 42 13 19 43 48 27 35 0 0 0 26 53 77 24 -39 44 1 37 43 35 17 44 54 58 42 42 14 44 19 12 36 0 0 0 27 8 78 25 -38 44 32 35 44 5 51 45 26 45 43 12 0 Latitude Latitude Latitude Latitude 45 0 0 37 16 49 0 27 28 79 25 -37 36 51 38 37 41 58 35 9 37 39 23 19 46 0 0 39 4 14 0 27 57 81 25 -36 38 39 48 39 28 38 37 0 49 41 6 58 47 0 0 40 45 20 0 28 23 83 26 -35 40 21 38 41 9 1 38 45 34 42 44 27 48 0 0 42 20 28 0 28 49 84 26 -34 41 57 27 42 43 27 40 24 13 44 16 5 49 0 0 43 50 0 0 29 13 85 26 -33 43 27 39 44 12 19 41 57 7 45 42 16 50 0 0 45 14 15 0 29 36 86 23 -32 44 52 33 45 35 56 43 24 37 47 3 20 51 0 0 46 33 36 0 29 58 87 333 -31 46 12 30 46 54 40 44 47 2 48 19 38 52 0 0 47 48 20 0 30 19 86 219 -30 47 27 49 48 8 50 46 4 42 49 31 29 53 0 0 48 58 47 0 30 38 86 216 -29 48 38 49 49 18 44 47 17 56 50 39 11 54 0 0 50 5 14 0 30 57 85 215 -29 49 45 47 50 24 40 48 27 2 51 43 0 55 0 0 51 7 57 0 31 15 84 216 -28 50 49 0 51 26 53 49 32 15 52 43 14 56 0 0 52 7 11 0 31 32 83 216 -27 51 48 42 52 25 39 50 33 52 53 40 7 57 0 0 53 3 10 0 31 48 82 217 -26 52 45 8 53 21 11 51 32 7 54 33 52 58 0 0 53 56 7 0 32 4 81 217 -25 53 38 30 54 13 43 52 27 13 55 24 42 59 0 0 54 46 14 0 32 18 80 218 -25 54 29 1 55 3 26 53 19 22 56 12 48 60 0 0 55 33 42 0 32 32 79 219 -24 55 16 53 55 50 31 54 8 47 56 58 22 61 0 0 56 18 42 0 32 46 78 220 -23 56 2 14 56 35 10 54 55 37 57 41 33 62 0 0 57 1 23 0 32 59 77 221 -23 56 45 16 57 17 30 55 40 2 58 22 30 63 0 0 57 41 53 0 33 11 76 221 -22 57 26 6 57 57 41 56 22 12 59 1 22 64 0 0 58 20 22 0 33 23 75 222 -22 58 4 53 58 35 50 57 2 15 59 38 16 65 0 0 58 56 55 0 33 34 74 223 -21 58 41 44 59 12 5 57 40 18 60 13 20 66 0 0 59 31 40 0 33 45 74 224 -21 59 16 46 59 46 34 58 16 29 60 46 41 67 0 0 60 4 43 0 33 56 73 225 -20 59 50 5 60 19 21 58 50 53 61 18 24 68 0 0 60 36 11 0 34 6 72 226 -20 60 21 48 60 50 33 59 23 39 61 48 34 69 0 0 61 6 8 0 34 16 71 227 -19 60 52 0 61 20 16 59 54 50 62 17 18 70 0 0 61 34 40 0 34 25 71 227 -19 61 20 46 61 48 34 60 24 32 62 44 40 71 0 0 62 1 51 0 34 34 70 228 -18 61 48 10 62 15 32 60 52 50 63 10 45 72 0 0 62 27 46 0 34 43 69 229 -18 62 14 18 62 41 14 61 19 49 63 35 37 73 0 0 62 52 28 0 34 51 69 230 -17 62 39 12 63 5 44 61 45 32 63 59 19 74 0 0 63 16 2 0 34 59 68 231 -17 63 2 57 63 29 7 62 10 4 64 21 55 75 0 0 63 38 31 0 35 7 68 232 -16 63 25 37 63 51 24 62 33 28 64 43 28 76 0 0 63 59 57 0 35 15 67 233 -16 63 47 14 64 12 40 62 55 47 65 4 2 77 0 0 64 20 25 0 35 22 66 234 -15 64 7 51 64 32 58 63 17 5 65 23 40 78 0 0 64 39 56 0 35 30 66 235 -15 64 27 32 64 52 20 63 37 25 65 42 23 79 0 0 64 58 34 0 35 37 65 236 -15 64 46 19 65 10 49 63 56 49 66 0 15 80 0 0 65 16 21 0 35 44 65 237 -14 65 4 14 65 28 27 64 15 19 66 17 18 81 0 0 65 33 18 0 35 50 64 237 -14 65 21 20 65 45 16 64 32 59 66 33 34 82 0 0 65 49 29 0 35 57 64 238 -14 65 37 39 66 1 19 64 49 49 66 49 6 83 0 0 66 4 55 0 36 3 63 239 -13 65 53 13 66 16 37 65 5 53 67 3 54 84 0 0 66 19 38 0 36 9 63 240 -13 66 8 3 66 31 13 65 21 13 67 18 1 85 0 0 66 33 40 0 36 15 62 241 -13 66 22 11 66 45 8 65 35 49 67 31 28 86 0 0 66 47 2 0 36 21 62 242 -12 66 35 40 66 58 23 65 49 44 67 44 17 87 0 0 66 59 45 0 36 27 61 243 -12 66 48 30 67 11 1 66 2 59 67 56 30 88 0 0 67 11 52 0 36 33 61 244 -12 67 0 42 67 23 2 66 15 36 68 8 7 89 0 0 67 23 24 0 36 38 61 245 -11 67 12 20 67 34 28 66 27 35 68 19 10 90 0 0 67 34 21 0 36 44 60 246 -11 67 23 22 67 45 20 66 39 0 68 29 40 91 0 0 67 44 45 0 36 49 60 247 -11 67 33 51 67 55 39 66 49 49 68 39 39 92 0 0 67 54 37 0 36 54 59 248 -10 67 43 48 68 5 26 67 0 6 68 49 7 93 0 0 68 3 58 0 36 59 59 249 -10 67 53 14 68 14 42 67 9 50 68 58 5 94 0 0 68 12 49 0 37 4 59 250 -10 68 2 9 68 23 29 67 19 2 69 6 34 95 0 0 68 21 10 0 37 9 58 251 -9 68 10 34 68 31 46 67 27 45 69 14 35 96 0 0 68 29 4 0 37 14 58 252 -9 68 18 32 68 39 36 67 35 57 69 22 9 97 0 0 68 36 29 0 37 19 57 252 -9 68 26 1 68 46 58 67 43 41 69 29 16 98 0 0 68 43 28 0 37 24 57 253 -9 68 33 3 68 53 53 67 50 57 69 35 58 99 0 0 68 50 0 0 37 28 57 254 -8 68 39 38 69 0 22 67 57 45 69 42 14 100 0 0 68 56 6 0 37 33 56 255 -8 68 45 47 69 6 25 68 4 6 69 48 6 101 0 0 69 1 48 0 37 37 56 256 -8 68 51 32 69 12 4 68 10 2 69 53 33 102 0 0 69 7 4 0 37 42 55 257 -7 68 56 51 69 17 18 68 15 31 69 58 37 103 0 0 69 11 57 0 37 46 55 258 -7 69 1 46 69 22 8 68 20 36 70 3 17 104 0 0 69 16 26 0 37 51 55 259 -7 69 6 17 69 26 35 68 25 16 70 7 35 105 0 0 69 20 31 0 37 55 54 260 -7 69 10 24 69 30 38 68 29 31 70 11 31 106 0 0 69 24 14 0 37 59 54 261 -6 69 14 9 69 34 19 68 33 23 70 15 4 107 0 0 69 27 34 0 38 3 54 262 -6 69 17 30 69 37 37 68 36 51 70 18 16 108 0 0 69 30 31 0 38 8 53 263 -6 69 20 29 69 40 33 68 39 56 70 21 6 109 0 0 69 33 7 0 38 12 53 264 -6 69 23 6 69 43 8 68 42 38 70 23 35 110 0 0 69 35 20 0 38 16 53 265 -5 69 25 20 69 45 20 68 44 57 70 25 43 111 0 0 69 37 12 0 38 20 52 266 -5 69 27 13 69 47 11 68 46 53 70 27 31 112 0 0 69 38 43 0 38 24 52 267 -5 69 28 44 69 48 41 68 48 27 70 28 57 113 0 0 69 39 51 0 38 28 51 268 -4 69 29 54 69 49 49 68 49 39 70 30 4 114 0 0 69 40 39 0 38 32 51 269 -4 69 30 42 69 50 36 68 50 29 70 30 49 115 0 0 69 41 6 0 38 36 51 270 -4 69 31 9 69 51 3 68 50 56 70 31 15 116 0 0 69 41 11 0 38 40 50 270 -4 69 31 14 69 51 8 68 51 2 70 31 20 117 0 0 69 40 55 0 38 44 50 271 -3 69 30 58 69 50 52 68 50 45 70 31 5 118 0 0 69 40 18 0 38 48 50 272 -3 69 30 21 69 50 16 68 50 7 70 30 29 119 0 0 69 39 20 0 38 51 49 273 -3 69 29 22 69 49 18 68 49 6 70 29 33 120 0 0 69 38 0 0 38 55 49 274 -3 69 28 2 69 47 59 68 47 43 70 28 17 121 0 0 69 36 19 0 38 59 49 275 -2 69 26 20 69 46 19 68 45 58 70 26 40 122 0 0 69 34 17 0 39 3 48 276 -2 69 24 16 69 44 17 68 43 51 70 24 43 123 0 0 69 31 53 0 39 7 48 277 -2 69 21 51 69 41 54 68 41 21 70 22 24 124 0 0 69 29 7 0 39 11 48 278 -2 69 19 4 69 39 9 68 38 28 70 19 45 125 0 0 69 25 58 0 39 15 47 279 -1 69 15 54 69 36 3 68 35 12 70 16 44 126 0 0 69 22 28 0 39 18 47 280 -1 69 12 22 69 32 34 68 31 33 70 13 22 127 0 0 69 18 35 0 39 22 46 281 -1 69 8 27 69 28 42 68 27 30 70 9 39 128 0 0 69 14 18 0 39 26 46 282 0 69 4 8 69 24 28 68 23 3 70 5 33 129 0 0 69 9 39 0 39 30 46 283 0 68 59 26 69 19 51 68 18 12 70 1 4 Uncertainty in time = +/- 10 secs Prediction of 2012 Oct 26.0 Data for the target star ------------------------ * name: UCAC2 47529088 * constellation : Lynx * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 07 10 43.4553 DE: +46 34 59.253 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .059, .059 ) * V mag [mag]: 11.4 * B mag [mag]: 0.0 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1116) Catriona approx. diameter [km]: 37 approx. diameter ["]: .033 distance from Earth [AU]: 1.56900 * orbital information: orbit source: Preston date of fit: 2012 Oct 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 887 number of rejected observations: 34 time covered by the observations: 1908 Jan 05 - 2012 Oct 16 1 sigma uncertainty ellipse (major, minor, PA): 0.036, 0.017, 106° remarks: * orbital elements for (1116) Catriona : Mean anomaly = 1.19239290 deg Arg. of pericenter = 82.70648698 deg Long. of node = 356.56081484 deg Inclination = 16.52477979 deg Eccentricity = 0.23105173 Semimajor axis = 2.92306700 AU Perihelion dist = 2.24768733 AU Mag: H = 9.67, G = 0.15 Epoch of elements : MJD 56241.02100000 TDT (2012 Nov 10.021) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 10 1116 Catriona 0h 30.0m UT 11.4 7 10 43.455 46 34 59.25UCAC2 47529088 0.0 13.6 37 4.7 1.569 1.197 21.21 50.6090 46.577 168.49 -17.20 0.4997 0.00230 -0.00227 2.20545 3.78275 -0.00479 -0.00066 2000 0.991034201211 9.00000 82.706487356.560815 16.5247800.23105173 2.9230670 2.2476873 9.8 5.00.15 RATE 1.9721770 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.069 0.062 94 3.02 0.066 0 0 3 3 056226.0020121110_529088 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 25, 22:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org