IOTA/IOTA-ES occultation update for (33) Polyhymnia / HIP 101329 event on 2009 Aug 07, 21:13 UT Visible from Summary ------- On 2009 Aug 07 UT, the 65 km diameter asteroid (33) Polyhymnia will occult a 8.2 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.3 mag to 10.4 mag (the magnitude of the asteroid) for at most 11.7 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: . The event at a glimpse ---------------------- * Rank: 99 * date and approx. time of event: 2009 Aug 07, 20:56 - 2009 Aug 07, 21:30 UT * magnitude of target star: 8.2 * magnitude drop [mag]: 2.3 * estimated maximum duration [s]: 11.7 * Moon: 97 % sunlit, 32° distance * Sun: 169° distance * rough path description: Additional comments ------------------- 40" double star The occultation path -------------------- * approximate projected width [km]: 72 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 7.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .057 +/- .030) * 1 sigma uncertainty ellipse (major, minor, PA): ( .058", .028", 78° ) * approx speed of asteroid's shadow [km/s]: 5.5152 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 101329 by 33 Polyhymnia on 2009 Aug 7 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 - 47 0 0 12 46 34 21 30 32 8 115 0 13 7 52 12 25 20 13 21 7 12 12 13 - 46 0 0 12 24 21 21 30 28 9 115 -1 12 45 36 12 3 10 12 58 49 11 50 5 - 45 0 0 12 2 29 21 30 25 10 115 -2 12 23 41 11 41 21 12 36 52 11 28 17 - 44 0 0 11 40 58 21 30 21 11 116 -4 12 2 7 11 19 53 12 15 16 11 6 51 - 43 0 0 11 19 48 21 30 16 12 116 -5 11 40 54 10 58 46 11 54 1 10 45 46 - 42 0 0 10 59 0 21 30 11 13 116 -6 11 20 3 10 38 1 11 33 8 10 25 2 - 41 0 0 10 38 33 21 30 6 14 116 -7 10 59 34 10 17 37 11 12 37 10 4 40 - 40 0 0 10 18 29 21 30 0 15 116 -8 10 39 27 9 57 36 10 52 29 9 44 41 - 39 0 0 9 58 48 21 29 54 16 117 -9 10 19 42 9 37 57 10 32 42 9 25 4 - 38 0 0 9 39 29 21 29 48 17 117 -10 10 0 21 9 18 41 10 13 19 9 5 49 - 37 0 0 9 20 33 21 29 41 18 117 -11 9 41 22 8 59 47 9 54 18 8 46 58 - 36 0 0 9 2 0 21 29 34 19 117 -12 9 22 46 8 41 17 9 35 41 8 28 29 - 35 0 0 8 43 50 21 29 26 20 117 -13 9 4 34 8 23 10 9 17 27 8 10 24 - 34 0 0 8 26 4 21 29 19 21 118 -14 8 46 45 8 5 27 8 59 36 7 52 42 - 33 0 0 8 8 41 21 29 10 22 118 -15 8 29 20 7 48 7 8 42 9 7 35 23 - 32 0 0 7 51 42 21 29 2 23 118 -16 8 12 18 7 31 11 8 25 6 7 18 29 - 31 0 0 7 35 8 21 28 53 24 118 -17 7 55 41 7 14 38 8 8 27 7 1 58 - 30 0 0 7 18 57 21 28 44 25 118 -18 7 39 28 6 58 30 7 52 13 6 45 51 - 29 0 0 7 3 10 21 28 35 26 119 -19 7 23 38 6 42 46 7 36 22 6 30 8 - 28 0 0 6 47 48 21 28 25 27 119 -20 7 8 14 6 27 26 7 20 56 6 14 50 - 27 0 0 6 32 50 21 28 15 28 119 -21 6 53 13 6 12 30 7 5 54 5 59 56 - 26 0 0 6 18 16 21 28 4 29 119 -22 6 38 38 5 57 59 6 51 17 5 45 26 - 25 0 0 6 4 7 21 27 54 30 120 -22 6 24 26 5 43 52 6 37 4 5 31 21 - 24 0 0 5 50 23 21 27 43 30 120 -23 6 10 40 5 30 10 6 23 16 5 17 40 - 23 0 0 5 37 3 21 27 32 31 120 -24 5 57 18 5 16 52 6 9 53 5 4 23 - 22 0 0 5 24 8 21 27 20 32 120 -25 5 44 21 5 4 0 5 56 55 4 51 32 - 21 0 0 5 11 38 21 27 8 33 121 -26 5 31 49 4 51 31 5 44 21 4 39 5 - 20 0 0 4 59 33 21 26 56 34 121 -27 5 19 41 4 39 28 5 32 13 4 27 3 - 19 0 0 4 47 52 21 26 44 35 121 -28 5 7 59 4 27 49 5 20 29 4 15 25 - 18 0 0 4 36 37 21 26 31 36 122 -29 4 56 42 4 16 36 5 9 10 4 4 13 - 17 0 0 4 25 46 21 26 19 37 122 -30 4 45 49 4 5 47 4 58 17 3 53 25 - 16 0 0 4 15 20 21 26 6 38 122 -31 4 35 21 3 55 22 4 47 48 3 43 2 - 15 0 0 4 5 19 21 25 52 39 123 -32 4 25 19 3 45 23 4 37 44 3 33 3 - 14 0 0 3 55 43 21 25 39 40 123 -33 4 15 41 3 35 49 4 28 6 3 23 30 - 13 0 0 3 46 32 21 25 25 40 123 -34 4 6 29 3 26 39 4 18 52 3 14 21 - 12 0 0 3 37 46 21 25 11 41 124 -35 3 57 41 3 17 55 4 10 4 3 5 38 - 11 0 0 3 29 25 21 24 57 42 124 -36 3 49 19 3 9 35 4 1 40 2 57 19 - 10 0 0 3 21 29 21 24 42 43 125 -37 3 41 21 3 1 40 3 53 42 2 49 25 - 9 0 0 3 13 58 21 24 28 44 125 -38 3 33 49 2 54 10 3 46 9 2 41 56 - 8 0 0 3 6 52 21 24 13 45 126 -38 3 26 41 2 47 5 3 39 1 2 34 51 - 7 0 0 3 0 10 21 23 58 45 126 -39 3 19 59 2 40 25 3 32 17 2 28 12 - 6 0 0 2 53 54 21 23 43 46 127 -40 3 13 41 2 34 10 3 25 59 2 21 57 - 5 0 0 2 48 2 21 23 28 47 127 -41 3 7 48 2 28 19 3 20 6 2 16 7 - 4 0 0 2 42 35 21 23 12 48 128 -42 3 2 21 2 22 53 3 14 37 2 10 42 - 3 0 0 2 37 33 21 22 56 49 128 -43 2 57 18 2 17 52 3 9 34 2 5 41 - 2 0 0 2 32 56 21 22 41 49 129 -44 2 52 40 2 13 16 3 4 55 2 1 6 - 1 0 0 2 28 44 21 22 25 50 130 -45 2 48 27 2 9 4 3 0 42 1 56 55 0 0 0 2 24 56 21 22 8 51 131 -46 2 44 38 2 5 17 2 56 53 1 53 8 1 0 0 2 21 33 21 21 52 52 131 -46 2 41 15 2 1 55 2 53 29 1 49 46 2 0 0 2 18 35 21 21 36 52 132 -47 2 38 16 1 58 57 2 50 30 1 46 49 3 0 0 2 16 2 21 21 19 53 133 -48 2 35 42 1 56 24 2 47 56 1 44 16 4 0 0 2 13 53 21 21 2 54 134 -49 2 33 33 1 54 16 2 45 46 1 42 8 5 0 0 2 12 8 21 20 45 54 135 -50 2 31 48 1 52 32 2 44 1 1 40 24 6 0 0 2 10 49 21 20 28 55 136 -51 2 30 28 1 51 13 2 42 41 1 39 5 7 0 0 2 9 54 21 20 11 56 137 -51 2 29 33 1 50 18 2 41 45 1 38 10 8 0 0 2 9 23 21 19 54 56 138 -52 2 29 2 1 49 47 2 41 14 1 37 40 9 0 0 2 9 17 21 19 36 57 139 -53 2 28 55 1 49 41 2 41 8 1 37 34 10 0 0 2 9 35 21 19 19 58 140 -54 2 29 13 1 49 59 2 41 26 1 37 52 11 0 0 2 10 17 21 19 1 58 141 -55 2 29 56 1 50 42 2 42 8 1 38 35 12 0 0 2 11 24 21 18 43 59 142 -55 2 31 3 1 51 49 2 43 16 1 39 42 13 0 0 2 12 55 21 18 26 59 144 -56 2 32 34 1 53 20 2 44 47 1 41 13 14 0 0 2 14 51 21 18 8 60 145 -57 2 34 30 1 55 15 2 46 43 1 43 8 15 0 0 2 17 11 21 17 50 60 146 -58 2 36 50 1 57 35 2 49 3 1 45 27 16 0 0 2 19 55 21 17 32 61 148 -58 2 39 34 2 0 18 2 51 47 1 48 10 17 0 0 2 23 3 21 17 13 61 149 -59 2 42 43 2 3 26 2 54 56 1 51 18 18 0 0 2 26 35 21 16 55 62 151 -60 2 46 15 2 6 58 2 58 29 1 54 49 19 0 0 2 30 31 21 16 37 62 152 -60 2 50 12 2 10 53 3 2 26 1 58 45 20 0 0 2 34 51 21 16 19 62 154 -61 2 54 33 2 15 13 3 6 47 2 3 4 21 0 0 2 39 35 21 16 0 63 156 -62 2 59 18 2 19 56 3 11 32 2 7 47 22 0 0 2 44 43 21 15 42 63 158 -62 3 4 26 2 25 4 3 16 41 2 12 54 23 0 0 2 50 15 21 15 23 63 159 -63 3 9 59 2 30 35 3 22 15 2 18 25 24 0 0 2 56 11 21 15 4 63 161 -63 3 15 56 2 36 30 3 28 12 2 24 19 25 0 0 3 2 31 21 14 46 64 163 -64 3 22 16 2 42 49 3 34 32 2 30 37 26 0 0 3 9 14 21 14 27 64 165 -65 3 29 0 2 49 31 3 41 17 2 37 19 27 0 0 3 16 21 21 14 8 64 167 -65 3 36 8 2 56 37 3 48 26 2 44 24 28 0 0 3 23 51 21 13 50 64 169 -65 3 43 39 3 4 6 3 55 58 2 51 53 29 0 0 3 31 45 21 13 31 64 171 -66 3 51 34 3 11 59 4 3 54 2 59 45 30 0 0 3 40 2 21 13 12 64 173 -66 3 59 53 3 20 15 4 12 13 3 8 1 31 0 0 3 48 43 21 12 53 64 175 -67 4 8 35 3 28 55 4 20 56 3 16 40 32 0 0 3 57 47 21 12 35 64 177 -67 4 17 41 3 37 58 4 30 2 3 25 42 33 0 0 4 7 15 21 12 16 64 179 -67 4 27 9 3 47 24 4 39 32 3 35 7 34 0 0 4 17 6 21 11 57 64 181 -68 4 37 1 3 57 13 4 49 24 3 44 56 35 0 0 4 27 19 21 11 38 63 183 -68 4 47 16 4 7 25 4 59 40 3 55 7 36 0 0 4 37 56 21 11 19 63 184 -68 4 57 55 4 18 1 5 10 20 4 5 41 37 0 0 4 48 56 21 11 1 63 186 -68 5 8 56 4 28 59 5 21 22 4 16 39 38 0 0 5 0 18 21 10 42 63 188 -68 5 20 20 4 40 20 5 32 47 4 27 59 39 0 0 5 12 4 21 10 23 62 190 -68 5 32 7 4 52 4 5 44 35 4 39 41 40 0 0 5 24 12 21 10 5 62 192 -68 5 44 17 5 4 10 5 56 46 4 51 47 41 0 0 5 36 42 21 9 46 62 193 -68 5 56 49 5 16 39 6 9 19 5 4 15 42 0 0 5 49 35 21 9 28 61 195 -68 6 9 44 5 29 30 6 22 15 5 17 5 43 0 0 6 2 51 21 9 9 61 196 -68 6 23 1 5 42 44 6 35 34 5 30 17 44 0 0 6 16 28 21 8 51 60 198 -68 6 36 41 5 56 20 6 49 14 5 43 52 45 0 0 6 30 28 21 8 32 60 199 -67 6 50 43 6 10 17 7 3 17 5 57 49 46 0 0 6 44 50 21 8 14 59 201 -67 7 5 6 6 24 37 7 17 42 6 12 7 47 0 0 6 59 34 21 7 56 59 202 -67 7 19 52 6 39 19 7 32 29 6 26 48 48 0 0 7 14 39 21 7 38 58 204 -66 7 34 59 6 54 22 7 47 38 6 41 50 49 0 0 7 30 6 21 7 19 57 205 -66 7 50 29 7 9 47 8 3 8 6 57 13 50 0 0 7 45 54 21 7 2 57 206 -66 8 6 19 7 25 33 8 19 0 7 12 58 51 0 0 8 2 4 21 6 44 56 207 -65 8 22 31 7 41 41 8 35 13 7 29 4 52 0 0 8 18 35 21 6 26 55 208 -65 8 39 4 7 58 9 8 51 48 7 45 32 53 0 0 8 35 26 21 6 8 55 209 -64 8 55 58 8 14 59 9 8 43 8 2 20 54 0 0 8 52 39 21 5 51 54 210 -63 9 13 12 8 32 9 9 25 59 8 19 28 55 0 0 9 10 12 21 5 33 53 211 -63 9 30 48 8 49 40 9 43 36 8 36 58 56 0 0 9 28 5 21 5 16 53 212 -62 9 48 43 9 7 31 10 1 33 8 54 47 57 0 0 9 46 18 21 4 59 52 213 -62 10 6 59 9 25 42 10 19 50 9 12 57 58 0 0 10 4 52 21 4 42 51 214 -61 10 25 35 9 44 13 10 38 27 9 31 26 59 0 0 10 23 45 21 4 25 50 215 -60 10 44 30 10 3 3 10 57 24 9 50 15 60 0 0 10 42 57 21 4 9 49 216 -60 11 3 45 10 22 13 11 16 41 10 9 24 61 0 0 11 2 29 21 3 52 49 217 -59 11 23 19 10 41 42 11 36 16 10 28 51 62 0 0 11 22 19 21 3 36 48 218 -58 11 43 12 11 1 30 11 56 11 10 48 38 63 0 0 11 42 28 21 3 20 47 218 -57 12 3 24 11 21 37 12 16 24 11 8 43 64 0 0 12 2 56 21 3 4 46 219 -56 12 23 54 11 42 2 12 36 56 11 29 7 65 0 0 12 23 42 21 2 48 45 220 -56 12 44 42 12 2 45 12 57 46 11 49 48 66 0 0 12 44 45 21 2 33 44 220 -55 13 5 48 12 23 46 13 18 53 12 10 48 67 0 0 13 6 6 21 2 18 44 221 -54 13 27 11 12 45 4 13 40 18 12 32 5 68 0 0 13 27 44 21 2 3 43 222 -53 13 48 52 13 6 40 14 2 0 12 53 38 69 0 0 13 49 39 21 1 48 42 222 -52 14 10 49 13 28 32 14 23 59 13 15 29 70 0 0 14 11 50 21 1 33 41 223 -52 14 33 3 13 50 41 14 46 14 13 37 36 71 0 0 14 34 17 21 1 19 40 223 -51 14 55 33 14 13 5 15 8 46 13 59 59 72 0 0 14 57 0 21 1 5 39 224 -50 15 18 18 14 35 46 15 31 33 14 22 38 73 0 0 15 19 58 21 0 51 38 225 -49 15 41 19 14 58 41 15 54 35 14 45 32 74 0 0 15 43 11 21 0 37 37 225 -48 16 4 34 15 21 52 16 17 52 15 8 41 75 0 0 16 6 38 21 0 24 36 226 -47 16 28 4 15 45 17 16 41 23 15 32 4 76 0 0 16 30 19 21 0 11 36 226 -46 16 51 48 16 8 56 17 5 9 15 55 42 77 0 0 16 54 14 20 59 58 35 227 -45 17 15 45 16 32 48 17 29 8 16 19 33 78 0 0 17 18 22 20 59 46 34 227 -44 17 39 55 16 56 53 17 53 19 16 43 37 79 0 0 17 42 43 20 59 34 33 228 -43 18 4 18 17 21 12 18 17 44 17 7 53 80 0 0 18 7 15 20 59 22 32 228 -43 18 28 53 17 45 42 18 42 20 17 32 22 81 0 0 18 31 59 20 59 10 31 229 -42 18 53 40 18 10 24 19 7 8 17 57 3 82 0 0 18 56 55 20 58 59 30 229 -41 19 18 37 18 35 17 19 32 7 18 21 54 83 0 0 19 22 0 20 58 48 29 230 -40 19 43 45 19 0 20 19 57 17 18 46 56 84 0 0 19 47 16 20 58 37 28 230 -39 20 9 3 19 25 34 20 22 36 19 12 9 85 0 0 20 12 41 20 58 27 27 230 -38 20 34 30 19 50 57 20 48 4 19 37 30 86 0 0 20 38 15 20 58 17 26 231 -37 21 0 6 20 16 29 21 13 42 20 3 1 87 0 0 21 3 57 20 58 8 25 231 -36 21 25 51 20 42 9 21 39 27 20 28 40 88 0 0 21 29 47 20 57 58 24 232 -35 21 51 42 21 7 57 22 5 20 20 54 26 89 0 0 21 55 44 20 57 49 23 232 -34 22 17 41 21 33 52 22 31 20 21 20 20 90 0 0 22 21 47 20 57 41 22 233 -33 22 43 46 21 59 53 22 57 27 21 46 21 91 0 0 22 47 56 20 57 33 21 233 -32 23 9 57 22 26 0 23 23 38 22 12 27 92 0 0 23 14 11 20 57 25 20 234 -31 23 36 13 22 52 13 23 49 55 22 38 38 93 0 0 23 40 29 20 57 17 19 234 -30 24 2 33 23 18 30 24 16 17 23 4 54 94 0 0 24 6 52 20 57 10 18 235 -29 24 28 57 23 44 51 24 42 42 23 31 15 95 0 0 24 33 17 20 57 4 17 235 -28 24 55 24 24 11 15 25 9 10 23 57 38 96 0 0 24 59 46 20 56 57 16 235 -27 25 21 54 24 37 42 25 35 40 24 24 4 97 0 0 25 26 15 20 56 51 15 236 -26 25 48 25 25 4 11 26 2 12 24 50 32 98 0 0 25 52 46 20 56 46 14 236 -25 26 14 57 25 30 41 26 28 45 25 17 1 99 0 0 26 19 18 20 56 40 13 237 -24 26 41 30 25 57 11 26 55 18 25 43 31 100 0 0 26 45 49 20 56 35 12 237 -23 27 8 2 26 23 41 27 21 50 26 10 1 101 0 0 27 12 19 20 56 31 11 238 -22 27 34 33 26 50 11 27 48 22 26 36 30 102 0 0 27 38 48 20 56 27 10 238 -21 28 1 2 27 16 39 28 14 52 27 2 57 103 0 0 28 5 14 20 56 23 9 239 -20 28 27 29 27 43 4 28 41 19 27 29 22 104 0 0 28 31 37 20 56 20 8 239 -19 28 53 52 28 9 27 29 7 43 27 55 44 105 0 0 28 57 56 20 56 17 8 240 -18 29 20 12 28 35 46 29 34 3 28 22 3 106 0 0 29 24 11 20 56 14 7 240 -17 29 46 27 29 2 0 30 0 18 28 48 18 107 0 0 29 50 21 20 56 12 6 241 -16 30 12 37 29 28 10 30 26 28 29 14 27 108 0 0 30 16 25 20 56 10 5 241 -16 30 38 41 29 54 14 30 52 32 29 40 31 109 0 0 30 42 22 20 56 8 4 242 -15 31 4 38 30 20 11 31 18 29 30 6 28 110 0 0 31 8 13 20 56 7 3 242 -14 31 30 28 30 46 2 31 44 19 30 32 19 111 0 0 31 33 55 20 56 6 2 243 -13 31 56 10 31 11 44 32 10 1 30 58 2 112 0 0 31 59 29 20 56 6 1 243 -12 32 21 44 31 37 19 32 35 34 31 23 36 Uncertainty in time = +/- 8 secs [Prediction of 2008 Nov 16.0] Data for the target star ------------------------ * name: HIP 101329 * constellation : Capricornus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 20 32 15.4785 DE: -22 09 42.260 * position source: mpos:HIP2 pm:HIP2 plx:HIP2 * standard error: RA,DE ["]: ( .024, .016 ) * V mag [mag]: 8.2 * B mag [mag]: 8.5 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (33) Polyhymnia approx. diameter [km]: 65 approx. diameter ["]: .091 distance from Earth [AU]: 0.99000 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 917 number of rejected observations: 112 time covered by the observations: 1904 Jan 11 - 2008 Jan 26 1 sigma uncertainty ellipse (major, minor, PA): 0.053, 0.023, 76° remarks: * orbital elements for (33) Polyhymnia : Mean anomaly = 342.40849512 deg Arg. of pericenter = 338.13810534 deg Long. of node = 8.57416520 deg Inclination = 1.87098410 deg Eccentricity = 0.33846267 Semimajor axis = 2.86612053 AU Perihelion dist = 1.89604573 AU Mag: H = 8.54, G = 0.33 Epoch of elements : MJD 55050.88500000 TDT (2009 Aug 07.885) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Aug 7 33 Polyhymnia 21h 13.4m UT 8.2 20 32 15.479-22 9 42.26HIP 101329 8.5 10.4 65 11.7 0.990 -1.964 -4.36 33.1902 -22.159 -136.92 16.19 21.2234 -0.06934 0.43245 -3.07384 -0.49186 0.00081 0.00049 2000 342.2287302009 8 7.00000338.138105 8.574165 1.8709840.33846267 2.8661205 1.8960457 8.6 5.00.33 RATE 2.0312450 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.058 0.028 78 1.31 0.028 0 54786.5020090807_101329 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 16, 18:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org