IOTA/IOTA-ES occultation update for (449) Hamburga / TYC 4672-00650-1 event on 2009 Sep 09, 05:49 UT Visible from Summary ------- On 2009 Sep 09 UT, the 86 km diameter asteroid (449) Hamburga will occult a 9.2 mag star in the constellation Cetus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.4 mag to 13.6 mag (the magnitude of the asteroid) for at most 8.0 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: 98 * date and approx. time of event: 2009 Sep 09, 05:42 - 2009 Sep 09, 05:57 UT * magnitude of target star: 9.2 * magnitude drop [mag]: 4.4 * estimated maximum duration [s]: 8.0 * Moon: 79 % sunlit, 33° distance * Sun: 158° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 111 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 3.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .031 +/- .022) * 1 sigma uncertainty ellipse (major, minor, PA): ( .031", .021", 78° ) * approx speed of asteroid's shadow [km/s]: 10.7262 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 4672-00650-1 by 449 Hamburga on 2009 Sep 9 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 -157 0 0 12 20 28 5 57 39 1 91 -21 12 50 39 11 50 31 13 11 54 .. .. .. -156 0 0 12 20 23 5 57 38 2 91 -22 12 50 33 11 50 26 13 11 47 11 29 35 -155 0 0 12 20 53 5 57 38 3 92 -23 12 51 2 11 50 56 13 12 17 11 30 5 -154 0 0 12 21 58 5 57 37 4 92 -24 12 52 8 11 52 2 13 13 22 11 31 11 -153 0 0 12 23 39 5 57 36 5 92 -25 12 53 49 11 53 43 13 15 3 11 32 52 -152 0 0 12 25 56 5 57 35 6 92 -26 12 56 6 11 55 59 13 17 20 11 35 9 -151 0 0 12 28 48 5 57 34 7 92 -27 12 58 58 11 58 51 13 20 13 11 38 0 -150 0 0 12 32 15 5 57 32 8 93 -28 13 2 26 12 2 17 13 23 41 11 41 26 -149 0 0 12 36 17 5 57 30 9 93 -29 13 6 29 12 6 18 13 27 44 11 45 27 -148 0 0 12 40 54 5 57 28 10 93 -30 13 11 7 12 10 54 13 32 23 11 50 2 -147 0 0 12 46 6 5 57 26 11 93 -31 13 16 20 12 16 5 13 37 37 11 55 12 -146 0 0 12 51 53 5 57 23 12 94 -32 13 22 8 12 21 51 13 43 26 12 0 57 -145 0 0 12 58 14 5 57 21 13 94 -32 13 28 30 12 28 10 13 49 50 12 7 15 -144 0 0 13 5 9 5 57 18 13 94 -33 13 35 27 12 35 4 13 56 48 12 14 8 -143 0 0 13 12 39 5 57 15 14 94 -34 13 42 59 12 42 32 14 4 21 12 21 35 -142 0 0 13 20 43 5 57 11 15 95 -35 13 51 5 12 50 34 14 12 28 12 29 35 -141 0 0 13 29 21 5 57 8 16 95 -36 13 59 45 12 59 10 14 21 10 12 38 10 -140 0 0 13 38 33 5 57 4 17 95 -37 14 8 59 13 8 19 14 30 26 12 47 18 -139 0 0 13 48 18 5 57 0 18 96 -38 14 18 47 13 18 2 14 40 16 12 56 59 -138 0 0 13 58 37 5 56 56 19 96 -39 14 29 9 13 28 19 14 50 39 13 7 13 -137 0 0 14 9 30 5 56 52 20 96 -39 14 40 4 13 39 8 15 1 37 13 18 1 -136 0 0 14 20 55 5 56 47 21 97 -40 14 51 33 13 50 31 15 13 7 13 29 21 -135 0 0 14 32 53 5 56 42 22 97 -41 15 3 34 14 2 26 15 25 11 13 41 14 -134 0 0 14 45 24 5 56 37 23 97 -42 15 16 9 14 14 54 15 37 48 13 53 40 -133 0 0 14 58 28 5 56 32 24 98 -43 15 29 16 14 27 54 15 50 58 14 6 38 -132 0 0 15 12 4 5 56 27 25 98 -43 15 42 56 14 41 26 16 4 40 14 20 8 -131 0 0 15 26 12 5 56 21 25 99 -44 15 57 8 14 55 31 16 18 55 14 34 10 -130 0 0 15 40 53 5 56 16 26 99 -45 16 11 52 15 10 7 16 33 42 14 48 43 -129 0 0 15 56 4 5 56 10 27 99 -46 16 27 8 15 25 15 16 49 0 15 3 48 -128 0 0 16 11 47 5 56 4 28 100 -46 16 42 55 15 40 54 17 4 51 15 19 24 -127 0 0 16 28 2 5 55 58 29 100 -47 16 59 14 15 57 4 17 21 13 15 35 31 -126 0 0 16 44 47 5 55 51 30 101 -48 17 16 4 16 13 45 17 38 6 15 52 9 -125 0 0 17 2 3 5 55 45 31 102 -49 17 33 24 16 30 56 17 55 30 16 9 17 -124 0 0 17 19 49 5 55 38 32 102 -49 17 51 16 16 48 38 18 13 25 16 26 56 -123 0 0 17 38 6 5 55 31 32 103 -50 18 9 37 17 6 49 18 31 50 16 45 4 -122 0 0 17 56 52 5 55 24 33 103 -50 18 28 28 17 25 30 18 50 45 17 3 41 -121 0 0 18 16 7 5 55 17 34 104 -51 18 47 49 17 44 41 19 10 9 17 22 48 -120 0 0 18 35 52 5 55 9 35 105 -52 19 7 39 18 4 20 19 30 3 17 42 24 -119 0 0 18 56 5 5 55 2 36 105 -52 19 27 58 18 24 28 19 50 26 18 2 28 -118 0 0 19 16 47 5 54 54 36 106 -53 19 48 45 18 45 4 20 11 17 18 23 1 -117 0 0 19 37 57 5 54 46 37 107 -53 20 10 0 19 6 8 20 32 37 18 44 1 -116 0 0 19 59 34 5 54 38 38 108 -54 20 31 44 19 27 40 20 54 24 19 5 29 -115 0 0 20 21 38 5 54 30 39 109 -54 20 53 54 19 49 38 21 16 38 19 27 23 -114 0 0 20 44 10 5 54 22 39 109 -54 21 16 31 20 12 4 21 39 20 19 49 45 -113 0 0 21 7 7 5 54 13 40 110 -55 21 39 35 20 34 55 22 2 28 20 12 32 -112 0 0 21 30 30 5 54 5 41 111 -55 22 3 4 20 58 13 22 26 2 20 35 45 -111 0 0 21 54 19 5 53 56 42 112 -55 22 27 0 21 21 55 22 50 2 20 59 24 -110 0 0 22 18 33 5 53 47 42 113 -56 22 51 20 21 46 2 23 14 26 21 23 27 -109 0 0 22 43 11 5 53 39 43 114 -56 23 16 4 22 10 34 23 39 15 21 47 54 -108 0 0 23 8 13 5 53 30 44 115 -56 23 41 12 22 35 30 24 4 28 22 12 45 -107 0 0 23 33 38 5 53 21 44 116 -56 24 6 44 23 0 48 24 30 5 22 37 59 -106 0 0 23 59 25 5 53 11 45 118 -56 24 32 39 23 26 29 24 56 4 23 3 36 -105 0 0 24 25 35 5 53 2 45 119 -57 24 58 55 23 52 33 25 22 26 23 29 35 -104 0 0 24 52 7 5 52 53 46 120 -57 25 25 33 24 18 58 25 49 9 23 55 55 -103 0 0 25 18 59 5 52 43 46 121 -57 25 52 33 24 45 43 26 16 13 24 22 36 -102 0 0 25 46 12 5 52 34 47 123 -57 26 19 52 25 12 49 26 43 37 24 49 38 -101 0 0 26 13 44 5 52 24 47 124 -56 26 47 31 25 40 15 27 11 21 25 16 59 -100 0 0 26 41 35 5 52 15 48 125 -56 27 15 29 26 7 59 27 39 24 25 44 38 - 99 0 0 27 9 44 5 52 5 48 127 -56 27 43 45 26 36 1 28 7 45 26 12 36 - 98 0 0 27 38 11 5 51 55 49 128 -56 28 12 19 27 4 21 28 36 23 26 40 52 - 97 0 0 28 6 54 5 51 45 49 130 -56 28 41 9 27 32 58 29 5 19 27 9 24 - 96 0 0 28 35 53 5 51 36 49 131 -55 29 10 15 28 1 51 29 34 30 27 38 12 - 95 0 0 29 5 8 5 51 26 50 133 -55 29 39 36 28 30 59 30 3 56 28 7 15 - 94 0 0 29 34 37 5 51 16 50 134 -55 30 9 12 29 0 21 30 33 37 28 36 33 - 93 0 0 30 4 19 5 51 6 50 136 -55 30 39 1 29 29 57 31 3 31 29 6 5 - 92 0 0 30 34 15 5 50 56 50 137 -54 31 9 3 29 59 46 31 33 38 29 35 49 - 91 0 0 31 4 22 5 50 46 50 139 -54 31 39 17 30 29 46 32 3 56 30 5 45 - 90 0 0 31 34 40 5 50 36 51 141 -53 32 9 42 30 59 58 32 34 26 30 35 53 - 89 0 0 32 5 8 5 50 26 51 142 -53 32 40 17 31 30 20 33 5 5 31 6 10 - 88 0 0 32 35 46 5 50 16 51 144 -52 33 11 0 32 0 51 33 35 53 31 36 37 - 87 0 0 33 6 32 5 50 6 51 146 -52 33 41 53 32 31 31 34 6 50 32 7 13 - 86 0 0 33 37 25 5 49 56 51 147 -51 34 12 52 33 2 19 34 37 54 32 37 56 - 85 0 0 34 8 25 5 49 47 51 149 -51 34 43 58 33 33 13 35 9 4 33 8 46 - 84 0 0 34 39 30 5 49 37 51 151 -50 35 15 9 34 4 12 35 40 19 33 39 42 - 83 0 0 35 10 40 5 49 27 51 153 -49 35 46 25 34 35 17 36 11 39 34 10 43 - 82 0 0 35 41 53 5 49 17 51 154 -49 36 17 44 35 6 25 36 43 2 34 41 47 - 81 0 0 36 13 10 5 49 8 50 156 -48 36 49 5 35 37 36 37 14 28 35 12 55 - 80 0 0 36 44 28 5 48 58 50 158 -47 37 20 29 36 8 49 37 45 55 35 44 4 - 79 0 0 37 15 46 5 48 48 50 159 -47 37 51 52 36 40 3 38 17 22 36 15 15 - 78 0 0 37 47 5 5 48 39 50 161 -46 38 23 16 37 11 17 38 48 49 36 46 25 - 77 0 0 38 18 22 5 48 30 50 163 -45 38 54 37 37 42 29 39 20 14 37 17 35 - 76 0 0 38 49 37 5 48 20 49 164 -45 39 25 57 38 13 40 39 51 37 37 48 43 - 75 0 0 39 20 49 5 48 11 49 166 -44 39 57 13 38 44 48 40 22 56 38 19 49 - 74 0 0 39 51 57 5 48 2 49 167 -43 40 28 25 39 15 52 40 54 10 38 50 50 - 73 0 0 40 23 0 5 47 53 48 169 -43 40 59 31 39 46 52 41 25 19 39 21 47 - 72 0 0 40 53 57 5 47 44 48 170 -42 41 30 31 40 17 45 41 56 22 39 52 39 - 71 0 0 41 24 47 5 47 35 48 172 -41 42 1 24 40 48 32 42 27 17 40 23 24 - 70 0 0 41 55 29 5 47 27 47 173 -40 42 32 9 41 19 12 42 58 4 40 54 1 - 69 0 0 42 26 2 5 47 18 47 175 -40 43 2 45 41 49 43 43 28 41 41 24 31 - 68 0 0 42 56 26 5 47 10 46 176 -39 43 33 11 42 20 4 43 59 9 41 54 51 - 67 0 0 43 26 39 5 47 1 46 178 -38 44 3 26 42 50 16 44 29 25 42 25 1 - 66 0 0 43 56 41 5 46 53 45 179 -37 44 33 29 43 20 16 44 59 29 42 55 0 - 65 0 0 44 26 30 5 46 45 45 181 -37 45 3 20 43 50 4 45 29 21 43 24 47 - 64 0 0 44 56 7 5 46 37 44 182 -36 45 32 57 44 19 40 45 58 59 43 54 22 - 63 0 0 45 25 29 5 46 29 44 183 -35 46 2 20 44 49 2 46 28 23 44 23 44 - 62 0 0 45 54 37 5 46 22 43 185 -34 46 31 29 45 18 9 46 57 31 44 52 51 - 61 0 0 46 23 30 5 46 14 43 186 -33 47 0 21 45 47 2 47 26 24 45 21 44 - 60 0 0 46 52 6 5 46 7 42 187 -33 47 28 57 46 15 39 47 55 0 45 50 21 - 59 0 0 47 20 26 5 45 59 42 188 -32 47 57 17 46 44 0 48 23 19 46 18 42 - 58 0 0 47 48 29 5 45 52 41 190 -31 48 25 18 47 12 3 48 51 19 46 46 47 - 57 0 0 48 16 13 5 45 45 40 191 -30 48 53 1 47 39 49 49 19 1 47 14 33 - 56 0 0 48 43 39 5 45 39 40 192 -30 49 20 26 48 7 16 49 46 24 47 42 2 - 55 0 0 49 10 46 5 45 32 39 193 -29 49 47 30 48 34 25 50 13 28 48 9 12 - 54 0 0 49 37 33 5 45 25 39 194 -28 50 14 15 49 1 14 50 40 11 48 36 2 - 53 0 0 50 4 0 5 45 19 38 195 -27 50 40 39 49 27 44 51 6 33 49 2 34 - 52 0 0 50 30 6 5 45 13 38 197 -27 51 6 42 49 53 53 51 32 34 49 28 44 - 51 0 0 50 55 51 5 45 7 37 198 -26 51 32 24 50 19 41 51 58 14 49 54 35 - 50 0 0 51 21 15 5 45 1 36 199 -25 51 57 44 50 45 8 52 23 31 50 20 4 - 49 0 0 51 46 16 5 44 55 36 200 -25 52 22 42 51 10 13 52 48 27 50 45 12 - 48 0 0 52 10 56 5 44 49 35 201 -24 52 47 18 51 34 56 53 12 59 51 9 58 - 47 0 0 52 35 13 5 44 44 35 202 -23 53 11 31 51 59 18 53 37 9 51 34 22 - 46 0 0 52 59 7 5 44 38 34 203 -22 53 35 20 52 23 16 54 0 55 51 58 24 - 45 0 0 53 22 38 5 44 33 33 204 -22 53 58 47 52 46 52 54 24 18 52 22 3 - 44 0 0 53 45 46 5 44 28 33 205 -21 54 21 50 53 10 5 54 47 17 52 45 19 - 43 0 0 54 8 31 5 44 23 32 206 -20 54 44 29 53 32 55 55 9 53 53 8 12 - 42 0 0 54 30 52 5 44 18 32 207 -20 55 6 44 53 55 21 55 32 5 53 30 42 - 41 0 0 54 52 49 5 44 14 31 208 -19 55 28 36 54 17 24 55 53 52 53 52 49 - 40 0 0 55 14 23 5 44 9 30 209 -18 55 50 4 54 39 3 56 15 16 54 14 32 - 39 0 0 55 35 33 5 44 5 30 210 -18 56 11 8 55 0 19 56 36 15 54 35 51 - 38 0 0 55 56 18 5 44 0 29 211 -17 56 31 47 55 21 11 56 56 50 54 56 47 - 37 0 0 56 16 40 5 43 56 29 212 -16 56 52 3 55 41 39 57 17 1 55 17 20 - 36 0 0 56 36 38 5 43 52 28 213 -16 57 11 54 56 1 43 57 36 48 55 37 28 - 35 0 0 56 56 13 5 43 48 28 214 -15 57 31 22 56 21 24 57 56 11 55 57 13 - 34 0 0 57 15 23 5 43 44 27 215 -15 57 50 25 56 40 41 58 15 9 56 16 34 - 33 0 0 57 34 9 5 43 41 26 216 -14 58 9 5 56 59 34 58 33 44 56 35 32 - 32 0 0 57 52 32 5 43 37 26 217 -13 58 27 20 57 18 3 58 51 55 56 54 6 - 31 0 0 58 10 31 5 43 33 25 218 -13 58 45 13 57 36 9 59 9 42 57 12 17 - 30 0 0 58 28 7 5 43 30 25 219 -12 59 2 41 57 53 52 59 27 5 57 30 4 - 29 0 0 58 45 19 5 43 27 24 220 -12 59 19 46 58 11 11 59 44 5 57 47 28 - 28 0 0 59 2 8 5 43 24 24 221 -11 59 36 28 58 28 7 60 0 41 58 4 29 - 27 0 0 59 18 34 5 43 21 23 222 -10 59 52 46 58 44 40 60 16 55 58 21 7 - 26 0 0 59 34 37 5 43 18 23 222 -10 60 8 42 59 0 50 60 32 45 58 37 22 - 25 0 0 59 50 17 5 43 15 22 223 -9 60 24 15 59 16 37 60 48 13 58 53 14 - 24 0 0 60 5 35 5 43 12 22 224 -9 60 39 25 59 32 2 61 3 18 59 8 43 - 23 0 0 60 20 30 5 43 9 21 225 -8 60 54 13 59 47 4 61 18 1 59 23 50 - 22 0 0 60 35 3 5 43 7 20 226 -8 61 8 39 60 1 44 61 32 21 59 38 35 - 21 0 0 60 49 14 5 43 4 20 227 -7 61 22 43 60 16 2 61 46 20 59 52 58 - 20 0 0 61 3 3 5 43 2 19 228 -7 61 36 25 60 29 59 61 59 57 60 7 0 - 19 0 0 61 16 31 5 43 0 19 229 -6 61 49 46 60 43 34 62 13 12 60 20 39 - 18 0 0 61 29 37 5 42 57 18 230 -5 62 2 45 60 56 47 62 26 6 60 33 57 - 17 0 0 61 42 23 5 42 55 18 231 -5 62 15 23 61 9 39 62 38 39 60 46 54 - 16 0 0 61 54 47 5 42 53 17 232 -4 62 27 40 61 22 10 62 50 52 60 59 30 - 15 0 0 62 6 51 5 42 51 17 233 -4 62 39 37 61 34 21 63 2 44 61 11 45 - 14 0 0 62 18 34 5 42 49 16 234 -3 62 51 13 61 46 11 63 14 15 61 23 40 - 13 0 0 62 29 57 5 42 47 16 234 -3 63 2 30 61 57 40 63 25 26 61 35 14 - 12 0 0 62 41 0 5 42 45 15 235 -2 63 13 26 62 8 50 63 36 18 61 46 28 - 11 0 0 62 51 43 5 42 44 15 236 -2 63 24 3 62 19 39 63 46 50 61 57 22 - 10 0 0 63 2 7 5 42 42 15 237 -1 63 34 20 62 30 9 63 57 3 62 7 56 - 9 0 0 63 12 11 5 42 41 14 238 -1 63 44 18 62 40 20 64 6 56 62 18 11 - 8 0 0 63 21 56 5 42 39 14 239 -1 63 53 57 62 50 11 64 16 30 62 28 6 - 7 0 0 63 31 23 5 42 38 13 240 0 64 3 17 62 59 44 64 25 46 62 37 43 Uncertainty in time = +/- 4 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 4672-00650-1 * constellation : Cetus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 00 38 19.3477 DE: -00 57 20.017 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .023, .018 ) * V mag [mag]: 9.2 * B mag [mag]: 9.6 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (449) Hamburga approx. diameter [km]: 86 approx. diameter ["]: .064 distance from Earth [AU]: 1.84500 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 900 number of rejected observations: 92 time covered by the observations: 1901 Mar 17 - 2007 Jul 25 1 sigma uncertainty ellipse (major, minor, PA): 0.022, 0.012, 66° remarks: * orbital elements for (449) Hamburga : Mean anomaly = 243.24539547 deg Arg. of pericenter = 47.36403243 deg Long. of node = 85.96235676 deg Inclination = 3.08528856 deg Eccentricity = 0.17214309 Semimajor axis = 2.55199734 AU Perihelion dist = 2.11268863 AU Mag: H = 9.79, G = 0.15 Epoch of elements : MJD 55083.24300000 TDT (2009 Sep 09.243) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Sep 9 449 Hamburga 5h 49.9m UT 9.2 0 38 19.348- 0 57 20.02TYC 4672-00650-1 9.6 13.6 86 8.0 1.845 -1.719 -13.00 -66.3238 -0.951 91.86 5.25 5.8325 -0.28340 0.56237 -5.40550 -2.72648 -0.00212 -0.00045 2000 242.4613692009 9 6.00000 47.364032 85.962357 3.0852890.17214309 2.5519973 2.1126886 9.5 5.00.15 RATE 2.4175960 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.031 0.021 78 1.35 0.022 0 54545.5020090909_0650-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 13:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org