IOTA/IOTA-ES occultation update for (968) Petunia / TYC 0752-00748-1 event on 2009 Nov 07, 23:30 UT Visible from Summary ------- On 2009 Nov 07 UT, the 28 km diameter asteroid (968) Petunia will occult a 11.4 mag star in the constellation Monoceros for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.2 mag to 14.6 mag (the magnitude of the asteroid) for at most 4.0 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: 31 * date and approx. time of event: 2009 Nov 07, 23:16 - 2009 Nov 07, 23:41 UT * magnitude of target star: 11.4 * magnitude drop [mag]: 3.2 * estimated maximum duration [s]: 4.0 * Moon: 70 % sunlit, 16° distance * Sun: 121° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 28 * 1 sigma uncertainty interval [path widths]: +/- 2.17 * 1 sigma uncertainty interval [seconds]: +/- 7.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .042 +/- .035) * 1 sigma uncertainty ellipse (major, minor, PA): ( .042", .035", 96° ) * approx speed of asteroid's shadow [km/s]: 6.9224 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0752-00748-1 by 968 Petunia on 2009 Nov 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 ' " Longitude Longitude Longitude Longitude Latitude Latitude Latitude Latitude 81 0 0 -26 55 6 23 41 8 49 330 -1 -27 19 22 -26 30 42 -29 3 21 -24 43 19 80 0 0 -24 6 30 23 40 31 51 330 -3 -24 32 16 -23 40 34 -26 22 31 -21 46 18 79 0 0 -21 1 45 23 39 48 55 329 -5 -21 29 14 -20 34 6 -23 26 35 -18 32 0 78 0 0 -17 38 50 23 39 0 58 328 -7 -18 8 15 -17 9 12 -20 13 40 -14 58 8 77 0 0 -13 55 31 23 38 6 62 327 -9 -14 27 9 -13 23 40 -16 41 43 -11 2 23 76 0 0 - 9 49 39 23 37 4 66 325 -12 -10 23 45 - 9 15 15 -12 48 37 - 6 42 27 75 0 0 - 5 19 20 23 35 54 70 321 -15 - 5 56 12 - 4 42 9 - 8 32 29 - 1 56 34 74 0 0 - 0 23 39 23 34 35 75 313 -17 - 1 3 27 0 16 33 - 3 52 2 3 15 45 73 0 0 4 56 32 23 33 8 79 298 -20 4 13 44 5 39 46 1 12 37 8 52 33 72 0 0 10 37 20 23 31 35 82 267 -23 9 51 48 11 23 18 6 38 58 14 48 10 71 0 0 16 31 5 23 29 59 81 227 -26 15 43 27 17 19 9 12 21 16 20 52 48 70 0 0 22 26 47 23 28 22 76 204 -28 21 38 0 23 15 56 18 10 19 26 53 40 69 0 0 28 12 10 23 26 51 71 193 -30 27 23 21 29 1 16 23 54 46 32 37 59 68 0 0 33 36 39 23 25 27 66 187 -31 32 48 49 34 24 43 29 23 43 37 56 7 67 0 0 38 33 29 23 24 14 61 183 -32 37 47 21 39 19 47 34 29 0 42 42 57 66 0 0 42 59 54 23 23 11 57 181 -32 42 15 53 43 44 2 39 6 17 46 57 24 65 0 0 46 56 12 23 22 17 53 178 -33 46 14 29 47 38 2 43 14 33 50 41 2 64 0 0 50 24 32 23 21 32 50 177 -33 49 45 7 51 4 3 46 54 59 53 56 46 63 0 0 53 27 48 23 20 54 46 175 -32 52 50 36 54 5 5 50 9 57 56 47 57 62 0 0 56 9 4 23 20 23 44 174 -32 55 33 57 56 44 15 53 2 17 59 17 54 61 0 0 58 31 17 23 19 56 41 173 -32 57 58 6 59 4 31 55 34 48 61 29 37 60 0 0 60 37 3 23 19 33 39 172 -32 60 5 40 61 8 29 57 50 4 63 25 42 59 0 0 62 28 41 23 19 14 37 170 -31 61 58 57 62 58 28 59 50 26 65 8 27 58 0 0 64 8 8 23 18 57 35 169 -31 63 39 55 64 36 25 61 37 54 66 39 46 57 0 0 65 37 6 23 18 43 34 168 -31 65 10 15 66 3 59 63 14 12 68 1 15 56 0 0 66 56 57 23 18 30 33 167 -30 66 31 23 67 22 34 64 40 49 69 14 16 55 0 0 68 8 56 23 18 19 31 166 -30 67 44 31 68 33 23 65 58 59 70 19 57 54 0 0 69 14 2 23 18 10 30 165 -30 68 50 42 69 37 24 67 9 46 71 19 16 53 0 0 70 13 7 23 18 1 29 164 -29 69 50 46 70 35 30 68 14 6 72 13 2 52 0 0 71 6 56 23 17 54 28 163 -29 70 45 29 71 28 24 69 12 45 73 1 56 51 0 0 71 56 5 23 17 47 27 162 -29 71 35 29 72 16 42 70 6 22 73 46 33 50 0 0 72 41 7 23 17 41 26 161 -29 72 21 18 73 0 58 70 55 33 74 27 23 49 0 0 73 22 30 23 17 36 26 160 -28 73 3 24 73 41 37 71 40 46 75 4 52 48 0 0 74 0 36 23 17 31 25 159 -28 73 42 11 74 19 3 72 22 27 75 39 22 47 0 0 74 35 48 23 17 27 24 158 -28 74 18 0 74 53 37 73 0 58 76 11 11 46 0 0 75 8 23 23 17 23 24 157 -28 74 51 10 75 25 37 73 36 39 76 40 38 45 0 0 75 38 36 23 17 19 23 156 -27 75 21 56 75 55 18 74 9 46 77 7 56 44 0 0 76 6 42 23 17 16 23 155 -27 75 50 33 76 22 53 74 40 34 77 33 17 43 0 0 76 32 52 23 17 13 22 154 -27 76 17 11 76 48 34 75 9 16 77 56 53 42 0 0 76 57 17 23 17 10 22 153 -27 76 42 3 77 12 33 75 36 4 78 18 54 41 0 0 77 20 7 23 17 7 21 152 -27 77 5 18 77 34 57 76 1 7 78 39 28 40 0 0 77 41 29 23 17 5 21 151 -27 77 27 4 77 55 55 76 24 36 78 58 43 39 0 0 78 1 31 23 17 2 20 150 -26 77 47 28 78 15 35 76 46 36 79 16 46 38 0 0 78 20 20 23 17 0 20 149 -26 78 6 38 78 34 3 77 7 17 79 33 42 37 0 0 78 38 2 23 16 58 20 148 -26 78 24 40 78 51 25 77 26 44 79 49 37 36 0 0 78 54 41 23 16 56 19 147 -26 78 41 38 79 7 46 77 45 3 80 4 36 35 0 0 79 10 23 23 16 55 19 146 -26 78 57 37 79 23 10 78 2 19 80 18 43 34 0 0 79 25 12 23 16 53 19 145 -26 79 12 43 79 37 42 78 18 37 80 32 2 33 0 0 79 39 12 23 16 51 18 144 -26 79 26 59 79 51 26 78 34 1 80 44 37 32 0 0 79 52 26 23 16 50 18 143 -26 79 40 28 80 4 25 78 48 35 80 56 30 31 0 0 80 4 57 23 16 49 18 142 -25 79 53 13 80 16 42 79 2 23 81 7 45 30 0 0 80 16 49 23 16 47 18 141 -25 80 5 19 80 28 20 79 15 26 81 18 24 29 0 0 80 28 4 23 16 46 17 140 -25 80 16 46 80 39 22 79 27 49 81 28 30 28 0 0 80 38 44 23 16 45 17 139 -25 80 27 39 80 49 50 79 39 34 81 38 5 27 0 0 80 48 52 23 16 44 17 138 -25 80 37 58 80 59 46 79 50 44 81 47 10 26 0 0 80 58 29 23 16 43 17 137 -25 80 47 46 81 9 12 80 1 20 81 55 48 25 0 0 81 7 37 23 16 42 16 136 -25 80 57 5 81 18 10 80 11 24 82 4 0 24 0 0 81 16 19 23 16 41 16 135 -25 81 5 56 81 26 41 80 20 59 82 11 48 23 0 0 81 24 35 23 16 40 16 134 -25 81 14 22 81 34 48 80 30 6 82 19 13 22 0 0 81 32 27 23 16 39 16 133 -25 81 22 23 81 42 31 80 38 47 82 26 16 21 0 0 81 39 57 23 16 38 16 132 -25 81 30 2 81 49 52 80 47 2 82 32 59 20 0 0 81 47 5 23 16 37 15 131 -24 81 37 18 81 56 52 80 54 54 82 39 23 19 0 0 81 53 52 23 16 37 15 130 -24 81 44 13 82 3 32 81 2 24 82 45 29 18 0 0 82 0 21 23 16 36 15 129 -24 81 50 49 82 9 53 81 9 32 82 51 17 17 0 0 82 6 31 23 16 35 15 128 -24 81 57 7 82 15 56 81 16 20 82 56 49 16 0 0 82 12 24 23 16 34 15 127 -24 82 3 6 82 21 41 81 22 49 83 2 5 15 0 0 82 18 0 23 16 34 15 126 -24 82 8 49 82 27 11 81 29 0 83 7 6 14 0 0 82 23 20 23 16 33 14 125 -24 82 14 15 82 32 25 81 34 53 83 11 53 13 0 0 82 28 25 23 16 32 14 124 -24 82 19 26 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57 - 2 0 0 83 20 23 23 16 25 12 109 -23 83 12 25 83 28 21 82 37 51 84 2 59 - 3 0 0 83 22 31 23 16 24 12 108 -23 83 14 35 83 30 27 82 40 13 84 4 54 - 4 0 0 83 24 31 23 16 24 12 107 -23 83 16 38 83 32 24 82 42 25 84 6 41 - 5 0 0 83 26 23 23 16 24 12 106 -23 83 18 31 83 34 14 82 44 28 84 8 21 - 6 0 0 83 28 6 23 16 23 12 105 -23 83 20 17 83 35 56 82 46 23 84 9 54 - 7 0 0 83 29 42 23 16 23 12 104 -23 83 21 55 83 37 30 82 48 9 84 11 20 - 8 0 0 83 31 10 23 16 22 11 103 -23 83 23 25 83 38 56 82 49 46 84 12 39 - 9 0 0 83 32 31 23 16 22 11 102 -23 83 24 47 83 40 15 82 51 15 84 13 51 - 10 0 0 83 33 44 23 16 22 11 101 -23 83 26 1 83 41 27 82 52 36 84 14 57 - 11 0 0 83 34 50 23 16 21 11 100 -23 83 27 9 83 42 31 82 53 48 84 15 56 - 12 0 0 83 35 48 23 16 21 11 99 -23 83 28 8 83 43 29 82 54 53 84 16 48 - 13 0 0 83 36 40 23 16 21 11 98 -22 83 29 1 83 44 19 82 55 50 84 17 34 - 14 0 0 83 37 24 23 16 20 11 97 -22 83 29 46 83 45 3 82 56 39 84 18 14 - 15 0 0 83 38 2 23 16 20 11 96 -22 83 30 24 83 45 39 82 57 20 84 18 48 - 16 0 0 83 38 32 23 16 20 11 95 -22 83 30 55 83 46 9 82 57 54 84 19 15 - 17 0 0 83 38 56 23 16 19 10 94 -22 83 31 19 83 46 32 82 58 20 84 19 36 - 18 0 0 83 39 13 23 16 19 10 93 -22 83 31 36 83 46 49 82 58 38 84 19 51 - 19 0 0 83 39 22 23 16 19 10 92 -22 83 31 46 83 46 59 82 58 49 84 20 0 - 20 0 0 83 39 26 23 16 18 10 91 -22 83 31 50 83 47 2 82 58 52 84 20 3 - 21 0 0 83 39 22 23 16 18 10 90 -22 83 31 46 83 46 58 82 58 48 84 20 0 - 22 0 0 83 39 11 23 16 18 10 89 -22 83 31 35 83 46 48 82 58 37 84 19 50 - 23 0 0 83 38 54 23 16 17 10 88 -22 83 31 18 83 46 31 82 58 17 84 19 35 - 24 0 0 83 38 30 23 16 17 10 87 -22 83 30 53 83 46 7 82 57 51 84 19 13 - 25 0 0 83 37 59 23 16 17 10 86 -22 83 30 21 83 45 37 82 57 16 84 18 45 - 26 0 0 83 37 21 23 16 16 9 85 -22 83 29 42 83 44 59 82 56 34 84 18 11 - 27 0 0 83 36 36 23 16 16 9 84 -22 83 28 57 83 44 15 82 55 45 84 17 31 - 28 0 0 83 35 44 23 16 16 9 83 -22 83 28 3 83 43 24 82 54 47 84 16 45 - 29 0 0 83 34 45 23 16 16 9 83 -22 83 27 3 83 42 26 82 53 42 84 15 52 - 30 0 0 83 33 38 23 16 15 9 82 -22 83 25 55 83 41 21 82 52 28 84 14 52 - 31 0 0 83 32 24 23 16 15 9 81 -22 83 24 40 83 40 9 82 51 7 84 13 46 - 32 0 0 83 31 3 23 16 15 9 80 -21 83 23 17 83 38 49 82 49 37 84 12 34 - 33 0 0 83 29 35 23 16 14 9 79 -21 83 21 47 83 37 22 82 47 59 84 11 14 - 34 0 0 83 27 58 23 16 14 9 78 -21 83 20 9 83 35 48 82 46 13 84 9 48 - 35 0 0 83 26 14 23 16 14 8 77 -21 83 18 22 83 34 6 82 44 17 84 8 15 - 36 0 0 83 24 22 23 16 14 8 76 -21 83 16 28 83 32 16 82 42 13 84 6 34 - 37 0 0 83 22 21 23 16 13 8 75 -21 83 14 25 83 30 18 82 40 0 84 4 47 - 38 0 0 83 20 12 23 16 13 8 74 -21 83 12 14 83 28 11 82 37 38 84 2 51 - 39 0 0 83 17 55 23 16 13 8 73 -21 83 9 54 83 25 57 82 35 6 84 0 48 - 40 0 0 83 15 29 23 16 12 8 72 -21 83 7 25 83 23 33 82 32 25 83 58 38 - 41 0 0 83 12 53 23 16 12 8 71 -21 83 4 46 83 21 1 82 29 33 83 56 19 - 42 0 0 83 10 9 23 16 12 8 70 -21 83 1 58 83 18 20 82 26 31 83 53 51 - 43 0 0 83 7 15 23 16 12 7 69 -21 82 59 1 83 15 29 82 23 19 83 51 15 - 44 0 0 83 4 11 23 16 11 7 68 -21 82 55 53 83 12 28 82 19 56 83 48 31 - 45 0 0 83 0 56 23 16 11 7 67 -21 82 52 35 83 9 18 82 16 21 83 45 37 - 46 0 0 82 57 31 23 16 11 7 66 -21 82 49 6 83 5 57 82 12 35 83 42 33 - 47 0 0 82 53 55 23 16 10 7 65 -21 82 45 26 83 2 25 82 8 37 83 39 20 - 48 0 0 82 50 8 23 16 10 7 64 -21 82 41 34 82 58 42 82 4 26 83 35 56 - 49 0 0 82 46 9 23 16 10 7 63 -20 82 37 31 82 54 48 82 0 2 83 32 22 - 50 0 0 82 41 58 23 16 10 6 62 -20 82 33 15 82 50 42 81 55 25 83 28 37 - 51 0 0 82 37 34 23 16 9 6 61 -20 82 28 45 82 46 23 81 50 33 83 24 41 - 52 0 0 82 32 57 23 16 9 6 60 -20 82 24 3 82 41 51 81 45 27 83 20 33 - 53 0 0 82 28 6 23 16 9 6 59 -20 82 19 6 82 37 6 81 40 6 83 16 12 - 54 0 0 82 23 0 23 16 9 6 58 -20 82 13 55 82 32 6 81 34 29 83 11 38 - 55 0 0 82 17 40 23 16 8 6 57 -20 82 8 28 82 26 52 81 28 35 83 6 51 - 56 0 0 82 12 3 23 16 8 6 56 -20 82 2 45 82 21 22 81 22 24 83 1 49 - 57 0 0 82 6 10 23 16 8 5 55 -20 81 56 45 82 15 36 81 15 55 82 56 33 - 58 0 0 82 0 0 23 16 8 5 54 -20 81 50 27 82 9 32 81 9 6 82 51 1 - 59 0 0 81 53 31 23 16 7 5 53 -20 81 43 51 82 3 11 81 1 58 82 45 12 - 60 0 0 81 46 43 23 16 7 5 52 -20 81 36 56 81 56 31 80 54 28 82 39 7 - 61 0 0 81 39 35 23 16 7 5 51 -19 81 29 39 81 49 31 80 46 36 82 32 43 - 62 0 0 81 32 6 23 16 7 4 50 -19 81 22 1 81 42 11 80 38 21 82 26 0 - 63 0 0 81 24 14 23 16 6 4 49 -19 81 14 0 81 34 28 80 29 41 82 18 56 - 64 0 0 81 15 58 23 16 6 4 48 -19 81 5 35 81 26 21 80 20 35 82 11 31 - 65 0 0 81 7 17 23 16 6 4 47 -19 80 56 44 81 17 50 80 11 1 82 3 44 - 66 0 0 80 58 9 23 16 6 4 46 -19 80 47 26 81 8 53 80 0 57 81 55 32 - 67 0 0 80 48 33 23 16 5 3 45 -19 80 37 39 80 59 28 79 50 23 81 46 55 - 68 0 0 80 38 27 23 16 5 3 44 -19 80 27 21 80 49 33 79 39 16 81 37 51 - 69 0 0 80 27 49 23 16 5 3 43 -19 80 16 31 80 39 7 79 27 33 81 28 17 - 70 0 0 80 16 36 23 16 5 3 42 -18 80 5 5 80 28 7 79 15 13 81 18 13 - 71 0 0 80 4 47 23 16 4 2 41 -18 79 53 3 80 16 31 79 2 13 81 7 35 - 72 0 0 79 52 19 23 16 4 2 40 -18 79 40 21 80 4 17 78 48 31 80 56 23 - 73 0 0 79 39 9 23 16 4 2 39 -18 79 26 56 79 51 22 78 34 2 80 44 32 - 74 0 0 79 25 14 23 16 4 2 38 -18 79 12 45 79 37 43 78 18 45 80 32 1 - 75 0 0 79 10 31 23 16 4 1 37 -18 78 57 46 79 23 16 78 2 35 80 18 46 - 76 0 0 78 54 56 23 16 4 1 36 -18 78 41 54 79 7 58 .. .. .. 80 4 44 - 77 0 0 78 38 25 23 16 4 1 35 -17 78 25 5 78 51 46 .. .. .. 79 49 51 - 78 0 0 78 20 53 23 16 4 0 34 -17 78 7 14 78 34 33 .. .. .. 79 34 3 Uncertainty in time = +/- 9 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 0752-00748-1 * constellation : Monoceros * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 06 54 35.1724 DE: +09 57 04.029 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .022, .029 ) * V mag [mag]: 11.4 * B mag [mag]: 11.8 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (968) Petunia approx. diameter [km]: 28 approx. diameter ["]: .019 distance from Earth [AU]: 1.99400 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 813 number of rejected observations: 44 time covered by the observations: 1921 Nov 24 - 2007 Nov 27 1 sigma uncertainty ellipse (major, minor, PA): 0.036, 0.018, 98° remarks: * orbital elements for (968) Petunia : Mean anomaly = 311.23976208 deg Arg. of pericenter = 298.41544418 deg Long. of node = 208.94450604 deg Inclination = 11.59198134 deg Eccentricity = 0.13652004 Semimajor axis = 2.86590609 AU Perihelion dist = 2.47465249 AU Mag: H = 10.10, G = 0.15 Epoch of elements : MJD 55142.98000000 TDT (2009 Nov 07.980) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Nov 7 968 Petunia 23h 31.2m UT 11.4 6 54 35.172 9 57 4.03TYC 0752-00748-1 11.8 14.6 28 4.0 1.994 0.297 -16.66 63.5448 9.956 -176.87 -16.54 23.5203 0.13755 0.03574 0.99769 -3.77767 -0.00486 0.00115 2000 310.634383200911 5.00000298.415444208.944506 11.5919810.13652004 2.8659061 2.474652510.0 5.00.15 RATE 2.0314730 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.042 0.035 96 3.17 0.042 0 54545.5020091107_0748-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 16:13 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org