IOTA/IOTA-ES occultation update for (66) Maja / TYC 6354-00254-1 event on 2009 Sep 07, 02:31 UT Visible from Summary ------- On 2009 Sep 07 UT, the 72 km diameter asteroid (66) Maja will occult a 11.1 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 2.2 mag to 13.1 mag (the magnitude of the asteroid) for at most 9.4 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: 94 * date and approx. time of event: 2009 Sep 07, 02:21 - 2009 Sep 07, 02:45 UT * magnitude of target star: 11.1 * magnitude drop [mag]: 2.2 * estimated maximum duration [s]: 9.4 * Moon: 94 % sunlit, 59° distance * Sun: 150° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 81 * 1 sigma uncertainty interval [path widths]: +/- 0.46 * 1 sigma uncertainty interval [seconds]: +/- 5.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .037 +/- .029) * 1 sigma uncertainty ellipse (major, minor, PA): ( .037", .028", 77° ) * approx speed of asteroid's shadow [km/s]: 7.6517 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6354-00254-1 by 66 Maja on 2009 Sep 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 -130 0 0 11 39 17 2 45 4 23 117 0 12 2 7 11 16 32 12 23 11 10 55 41 -129 0 0 11 24 20 2 44 57 24 117 -1 11 47 8 11 1 38 12 8 10 10 40 48 -128 0 0 11 9 43 2 44 51 25 118 -2 11 32 29 10 47 3 11 53 29 10 26 15 -127 0 0 10 55 27 2 44 44 26 118 -3 11 18 10 10 32 49 11 39 9 10 12 3 -126 0 0 10 41 31 2 44 37 27 118 -4 11 4 12 10 18 55 11 25 9 9 58 11 -125 0 0 10 27 56 2 44 30 28 119 -5 10 50 35 10 5 22 11 11 30 9 44 40 -124 0 0 10 14 42 2 44 22 29 119 -6 10 37 19 9 52 9 10 58 12 9 31 29 -123 0 0 10 1 48 2 44 14 29 119 -7 10 24 24 9 39 18 10 45 14 9 18 40 -122 0 0 9 49 16 2 44 6 30 120 -8 10 11 49 9 26 48 10 32 39 9 6 11 -121 0 0 9 37 5 2 43 58 31 120 -9 9 59 37 9 14 39 10 20 24 8 54 4 -120 0 0 9 25 16 2 43 50 32 120 -10 9 47 45 9 2 51 10 8 31 8 42 18 -119 0 0 9 13 48 2 43 41 33 121 -11 9 36 16 8 51 25 9 57 0 8 30 53 -118 0 0 9 2 42 2 43 33 34 121 -12 9 25 7 8 40 20 9 45 50 8 19 50 -117 0 0 8 51 57 2 43 24 35 121 -13 9 14 21 8 29 37 9 35 2 8 9 9 -116 0 0 8 41 34 2 43 15 36 122 -14 9 3 56 8 19 16 9 24 36 7 58 49 -115 0 0 8 31 33 2 43 5 37 122 -15 8 53 54 8 9 16 9 14 32 7 48 51 -114 0 0 8 21 54 2 42 56 38 123 -16 8 44 13 7 59 39 9 4 49 7 39 15 -113 0 0 8 12 37 2 42 46 39 123 -17 8 34 54 7 50 23 8 55 29 7 30 0 -112 0 0 8 3 41 2 42 36 39 123 -18 8 25 58 7 41 29 8 46 32 7 21 8 -111 0 0 7 55 9 2 42 26 40 124 -19 8 17 24 7 32 58 8 37 56 7 12 38 -110 0 0 7 46 58 2 42 16 41 124 -20 8 9 11 7 24 49 8 29 43 7 4 29 -109 0 0 7 39 9 2 42 5 42 125 -21 8 1 22 7 17 1 8 21 52 6 56 43 -108 0 0 7 31 43 2 41 55 43 125 -22 7 53 54 7 9 36 8 14 23 6 49 19 -107 0 0 7 24 39 2 41 44 44 126 -23 7 46 49 7 2 34 8 7 17 6 42 18 -106 0 0 7 17 58 2 41 33 45 127 -24 7 40 6 6 55 53 8 0 33 6 35 38 -105 0 0 7 11 38 2 41 22 45 127 -25 7 33 46 6 49 35 7 54 12 6 29 21 -104 0 0 7 5 42 2 41 11 46 128 -26 7 27 48 6 43 39 7 48 13 6 23 26 -103 0 0 7 0 7 2 41 0 47 129 -27 7 22 13 6 38 6 7 42 37 6 17 54 -102 0 0 6 54 55 2 40 49 48 129 -27 7 17 0 6 32 55 7 37 23 6 12 44 -101 0 0 6 50 6 2 40 37 49 130 -28 7 12 10 6 28 6 7 32 32 6 7 56 -100 0 0 6 45 39 2 40 25 49 131 -29 7 7 43 6 23 40 7 28 4 6 3 30 - 99 0 0 6 41 35 2 40 14 50 131 -30 7 3 37 6 19 36 7 23 58 5 59 27 - 98 0 0 6 37 53 2 40 2 51 132 -31 6 59 55 6 15 55 7 20 15 5 55 47 - 97 0 0 6 34 33 2 39 50 52 133 -32 6 56 35 6 12 36 7 16 54 5 52 28 - 96 0 0 6 31 37 2 39 38 52 134 -33 6 53 37 6 9 40 7 13 56 5 49 33 - 95 0 0 6 29 2 2 39 25 53 135 -34 6 51 3 6 7 6 7 11 21 5 46 59 - 94 0 0 6 26 50 2 39 13 54 136 -35 6 48 50 6 4 55 7 9 8 5 44 48 - 93 0 0 6 25 1 2 39 1 54 137 -36 6 47 0 6 3 6 7 7 18 5 42 59 - 92 0 0 6 23 34 2 38 48 55 138 -37 6 45 33 6 1 39 7 5 51 5 41 33 - 91 0 0 6 22 29 2 38 35 56 139 -38 6 44 28 6 0 35 7 4 46 5 40 29 - 90 0 0 6 21 47 2 38 23 56 140 -39 6 43 46 5 59 53 7 4 3 5 39 47 - 89 0 0 6 21 28 2 38 10 57 141 -40 6 43 26 5 59 33 7 3 43 5 39 28 - 88 0 0 6 21 31 2 37 57 57 143 -40 6 43 29 5 59 36 7 3 46 5 39 31 - 87 0 0 6 21 56 2 37 44 58 144 -41 6 43 54 6 0 1 7 4 11 5 39 56 - 86 0 0 6 22 43 2 37 31 58 145 -42 6 44 42 6 0 49 7 4 59 5 40 43 - 85 0 0 6 23 53 2 37 18 59 147 -43 6 45 52 6 1 59 7 6 9 5 41 53 - 84 0 0 6 25 25 2 37 5 59 148 -44 6 47 24 6 3 31 7 7 41 5 43 25 - 83 0 0 6 27 20 2 36 51 60 150 -45 6 49 19 6 5 25 7 9 36 5 45 19 - 82 0 0 6 29 36 2 36 38 60 151 -46 6 51 36 6 7 41 7 11 53 5 47 35 - 81 0 0 6 32 15 2 36 25 61 153 -47 6 54 15 6 10 19 7 14 33 5 50 13 - 80 0 0 6 35 16 2 36 11 61 155 -48 6 57 16 6 13 20 7 17 35 5 53 13 - 79 0 0 6 38 39 2 35 58 61 156 -49 7 0 40 6 16 43 7 20 58 5 56 35 - 78 0 0 6 42 24 2 35 44 62 158 -49 7 4 25 6 20 27 7 24 44 6 0 19 - 77 0 0 6 46 31 2 35 31 62 160 -50 7 8 33 6 24 34 7 28 53 6 4 25 - 76 0 0 6 51 0 2 35 17 62 162 -51 7 13 2 6 29 2 7 33 23 6 8 53 - 75 0 0 6 55 51 2 35 4 62 163 -52 7 17 54 6 33 52 7 38 15 6 13 43 - 74 0 0 7 1 4 2 34 50 63 165 -53 7 23 8 6 39 4 7 43 29 6 18 54 - 73 0 0 7 6 38 2 34 36 63 167 -54 7 28 43 6 44 38 7 49 5 6 24 27 - 72 0 0 7 12 35 2 34 23 63 169 -55 7 34 40 6 50 34 7 55 3 6 30 22 - 71 0 0 7 18 53 2 34 9 63 171 -55 7 40 59 6 56 51 8 1 23 6 36 38 - 70 0 0 7 25 32 2 33 55 63 173 -56 7 47 39 7 3 29 8 8 4 6 43 16 - 69 0 0 7 32 33 2 33 42 63 175 -57 7 54 41 7 10 29 8 15 7 6 50 15 - 68 0 0 7 39 55 2 33 28 63 177 -58 8 2 5 7 17 50 8 22 32 6 57 35 - 67 0 0 7 47 39 2 33 14 63 179 -59 8 9 50 7 25 33 8 30 18 7 5 17 - 66 0 0 7 55 44 2 33 0 63 181 -59 8 17 56 7 33 37 8 38 25 7 13 20 - 65 0 0 8 4 10 2 32 47 62 183 -60 8 26 23 7 42 2 8 46 53 7 21 44 - 64 0 0 8 12 57 2 32 33 62 185 -61 8 35 12 7 50 48 8 55 43 7 30 28 - 63 0 0 8 22 6 2 32 19 62 187 -62 8 44 21 7 59 55 9 4 54 7 39 34 - 62 0 0 8 31 35 2 32 6 62 188 -62 8 53 51 8 9 22 9 14 25 7 49 1 - 61 0 0 8 41 25 2 31 52 61 190 -63 9 3 43 8 19 11 9 24 18 7 58 48 - 60 0 0 8 51 35 2 31 39 61 192 -64 9 13 55 8 29 20 9 34 31 8 8 56 - 59 0 0 9 2 6 2 31 25 61 194 -64 9 24 27 8 39 50 9 45 5 8 19 24 - 58 0 0 9 12 58 2 31 12 60 195 -65 9 35 20 8 50 40 9 56 0 8 30 12 - 57 0 0 9 24 9 2 30 58 60 197 -66 9 46 34 9 1 50 10 7 14 8 41 21 - 56 0 0 9 35 41 2 30 45 59 199 -66 9 58 7 9 13 20 10 18 49 8 52 50 - 55 0 0 9 47 33 2 30 31 59 200 -67 10 10 1 9 25 10 10 30 45 9 4 39 - 54 0 0 9 59 45 2 30 18 58 202 -67 10 22 14 9 37 21 10 43 0 9 16 48 - 53 0 0 10 12 17 2 30 5 58 203 -68 10 34 48 9 49 50 10 55 35 9 29 16 - 52 0 0 10 25 8 2 29 52 57 204 -68 10 47 40 10 2 40 11 8 29 9 42 4 - 51 0 0 10 38 18 2 29 39 57 206 -69 11 0 53 10 15 49 11 21 43 9 55 11 - 50 0 0 10 51 48 2 29 26 56 207 -69 11 14 24 10 29 16 11 35 17 10 8 37 - 49 0 0 11 5 37 2 29 13 55 208 -70 11 28 15 10 43 4 11 49 9 10 22 22 - 48 0 0 11 19 45 2 29 0 55 209 -70 11 42 25 10 57 9 12 3 20 10 36 27 - 47 0 0 11 34 11 2 28 47 54 211 -70 11 56 53 11 11 34 12 17 51 10 50 49 - 46 0 0 11 48 56 2 28 35 53 212 -70 12 11 40 11 26 17 12 32 39 11 5 31 - 45 0 0 12 3 59 2 28 22 53 213 -70 12 26 45 11 41 18 12 47 47 11 20 30 - 44 0 0 12 19 21 2 28 10 52 214 -71 12 42 9 11 56 38 13 3 12 11 35 48 - 43 0 0 12 35 0 2 27 57 51 215 -71 12 57 50 12 12 15 13 18 55 11 51 23 - 42 0 0 12 50 57 2 27 45 50 216 -71 13 13 49 12 28 10 13 34 56 12 7 16 - 41 0 0 13 7 11 2 27 33 50 217 -71 13 30 5 12 44 22 13 51 14 12 23 26 - 40 0 0 13 23 43 2 27 21 49 217 -70 13 46 39 13 0 51 14 7 50 12 39 54 - 39 0 0 13 40 31 2 27 9 48 218 -70 14 3 29 13 17 38 14 24 42 12 56 38 - 38 0 0 13 57 36 2 26 58 47 219 -70 14 20 37 13 34 40 14 41 51 13 13 39 - 37 0 0 14 14 57 2 26 46 47 220 -70 14 38 0 13 52 0 14 59 17 13 30 57 - 36 0 0 14 32 35 2 26 35 46 221 -69 14 55 40 14 9 35 15 16 58 13 48 30 - 35 0 0 14 50 28 2 26 23 45 221 -69 15 13 35 14 27 26 15 34 56 14 6 19 - 34 0 0 15 8 37 2 26 12 44 222 -69 15 31 46 14 45 33 15 53 8 14 24 24 - 33 0 0 15 27 1 2 26 1 43 223 -68 15 50 12 15 3 55 16 11 37 14 42 44 - 32 0 0 15 45 40 2 25 51 42 224 -68 16 8 53 15 22 31 16 30 20 15 1 19 - 31 0 0 16 4 33 2 25 40 41 224 -67 16 27 48 15 41 23 16 49 17 15 20 8 - 30 0 0 16 23 40 2 25 30 41 225 -67 16 46 58 16 0 28 17 8 29 15 39 11 - 29 0 0 16 43 2 2 25 19 40 225 -66 17 6 22 16 19 47 17 27 54 15 58 29 - 28 0 0 17 2 37 2 25 9 39 226 -65 17 25 59 16 39 20 17 47 33 16 18 0 - 27 0 0 17 22 25 2 24 59 38 227 -65 17 45 49 16 59 6 18 7 25 16 37 44 - 26 0 0 17 42 26 2 24 50 37 227 -64 18 5 52 17 19 5 18 27 30 16 57 41 - 25 0 0 18 2 39 2 24 40 36 228 -63 18 26 7 17 39 16 18 47 48 17 17 50 - 24 0 0 18 23 4 2 24 31 35 228 -63 18 46 34 17 59 39 19 8 17 17 38 11 - 23 0 0 18 43 41 2 24 22 34 229 -62 19 7 13 18 20 14 19 28 57 17 58 44 - 22 0 0 19 4 29 2 24 13 33 229 -61 19 28 3 18 41 0 19 49 49 18 19 28 - 21 0 0 19 25 27 2 24 4 33 230 -60 19 49 4 19 1 56 20 10 52 18 40 23 - 20 0 0 19 46 36 2 23 56 32 231 -60 20 10 14 19 23 3 20 32 4 19 1 28 - 19 0 0 20 7 55 2 23 48 31 231 -59 20 31 35 19 44 20 20 53 27 19 22 43 - 18 0 0 20 29 23 2 23 40 30 232 -58 20 53 5 20 5 46 21 14 58 19 44 8 - 17 0 0 20 51 0 2 23 32 29 232 -57 21 14 44 20 27 22 21 36 39 20 5 41 - 16 0 0 21 12 45 2 23 24 28 233 -56 21 36 31 20 49 5 21 58 28 20 27 23 - 15 0 0 21 34 39 2 23 17 27 233 -55 21 58 26 21 10 57 22 20 25 20 49 14 - 14 0 0 21 56 40 2 23 10 26 233 -55 22 20 29 21 32 56 22 42 29 21 11 11 - 13 0 0 22 18 48 2 23 3 25 234 -54 22 42 38 21 55 2 23 4 40 21 33 16 - 12 0 0 22 41 2 2 22 57 24 234 -53 23 4 54 22 17 15 23 26 57 21 55 27 - 11 0 0 23 3 22 2 22 50 23 235 -52 23 27 16 22 39 34 23 49 21 22 17 45 - 10 0 0 23 25 48 2 22 44 22 235 -51 23 49 44 23 1 58 24 11 49 22 40 8 - 9 0 0 23 48 19 2 22 38 21 236 -50 24 12 16 23 24 28 24 34 23 23 2 36 - 8 0 0 24 10 54 2 22 33 20 236 -49 24 34 52 23 47 2 24 57 0 23 25 9 - 7 0 0 24 33 33 2 22 27 19 237 -48 24 57 32 24 9 39 25 19 42 23 47 45 - 6 0 0 24 56 15 2 22 22 18 237 -47 25 20 16 24 32 20 25 42 26 24 10 25 - 5 0 0 25 19 0 2 22 17 17 238 -47 25 43 2 24 55 4 26 5 13 24 33 8 - 4 0 0 25 41 47 2 22 13 17 238 -46 26 5 50 25 17 50 26 28 3 24 55 53 - 3 0 0 26 4 36 2 22 8 16 239 -45 26 28 40 25 40 38 26 50 53 25 18 40 - 2 0 0 26 27 26 2 22 4 15 239 -44 26 51 31 26 3 28 27 13 45 25 41 29 - 1 0 0 26 50 17 2 22 1 14 240 -43 27 14 22 26 26 17 27 36 37 26 4 18 0 0 0 27 13 8 2 21 57 13 240 -42 27 37 14 26 49 7 27 59 29 26 27 7 1 0 0 27 35 58 2 21 54 12 241 -41 28 0 4 27 11 57 28 22 21 26 49 56 2 0 0 27 58 47 2 21 51 11 241 -40 28 22 54 27 34 45 28 45 11 27 12 44 3 0 0 28 21 34 2 21 48 10 241 -39 28 45 42 27 57 32 29 7 59 27 35 30 4 0 0 28 44 19 2 21 45 9 242 -38 29 8 27 28 20 17 29 30 45 27 58 15 5 0 0 29 7 1 2 21 43 8 242 -37 29 31 10 28 42 59 29 53 27 28 20 56 6 0 0 29 29 40 2 21 41 7 243 -36 29 53 49 29 5 37 30 16 7 28 43 35 7 0 0 29 52 15 2 21 39 6 243 -35 30 16 24 29 28 12 30 38 42 29 6 10 8 0 0 30 14 46 2 21 38 5 244 -35 30 38 55 29 50 43 31 1 13 29 28 41 9 0 0 30 37 12 2 21 37 4 244 -34 31 1 20 30 13 9 31 23 38 29 51 7 10 0 0 30 59 32 2 21 36 3 245 -33 31 23 41 30 35 29 31 45 58 30 13 27 11 0 0 31 21 46 2 21 35 2 245 -32 31 45 54 30 57 44 32 8 12 30 35 42 12 0 0 31 43 54 2 21 35 1 246 -31 32 8 2 31 19 52 32 30 19 30 57 50 13 0 0 32 5 55 2 21 34 1 247 -30 32 30 2 31 41 53 32 52 19 31 19 52 Uncertainty in time = +/- 6 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 6354-00254-1 * constellation : Capricornus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 21 11 45.7705 DE: -19 31 46.951 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .021, .020 ) * V mag [mag]: 11.1 * B mag [mag]: 11.5 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (66) Maja approx. diameter [km]: 72 approx. diameter ["]: .062 distance from Earth [AU]: 1.61000 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 968 number of rejected observations: 115 time covered by the observations: 1902 Oct 26 - 2008 Feb 18 1 sigma uncertainty ellipse (major, minor, PA): 0.031, 0.020, 71° remarks: * orbital elements for (66) Maja : Mean anomaly = 294.20364804 deg Arg. of pericenter = 43.43113911 deg Long. of node = 7.57162757 deg Inclination = 3.04744770 deg Eccentricity = 0.17151850 Semimajor axis = 2.64818756 AU Perihelion dist = 2.19397440 AU Mag: H = 9.32, G = 0.15 Epoch of elements : MJD 55081.10500000 TDT (2009 Sep 07.105) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Sep 7 66 Maja 2h 33.9m UT 11.1 21 11 45.770-19 31 46.95TYC 6354-00254-1 11.5 13.1 72 9.4 1.610 -1.654 -2.97 -66.8557 -19.528 141.04 6.05 2.5656 -0.05808 0.45117 -4.28426 -0.54519 0.00255 0.00107 2000 293.9509262009 9 6.00000 43.431139 7.571628 3.0474480.17151850 2.6481876 2.1939744 9.4 5.00.15 RATE 2.2870780 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.037 0.028 77 1.46 0.028 0 54545.5020090907_0254-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 13:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org