IOTA/IOTA-ES occultation update for (4382) Stravinsky / HIP 26748 event on 2009 Oct 07, 04:24 UT Visible from Summary ------- On 2009 Oct 07 UT, the 12 km diameter asteroid (4382) Stravinsky will occult a 8.9 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.3 mag to 16.2 mag (the magnitude of the asteroid) for at most 1.4 seconds. This update is based on historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: . The event at a glimpse ---------------------- * Rank: 11 * date and approx. time of event: 2009 Oct 07, 04:14 - 2009 Oct 07, 04:26 UT * magnitude of target star: 8.9 * magnitude drop [mag]: 7.3 * estimated maximum duration [s]: 1.4 * Moon: 90 % sunlit, 38° distance * Sun: 108° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 15 * 1 sigma uncertainty interval [path widths]: +/- 6.30 * 1 sigma uncertainty interval [seconds]: +/- 14.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .108 +/- .060) * 1 sigma uncertainty ellipse (major, minor, PA): ( .109", .058", 81° ) * approx speed of asteroid's shadow [km/s]: 8.2678 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 26748 by 4382 Stravinsky on 2009 Oct 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 - 99 0 0 43 34 9 4 14 8 1 68 -43 43 29 36 43 38 42 .. .. .. 44 36 33 - 98 0 0 43 51 59 4 14 8 1 69 -43 43 47 26 43 56 32 .. .. .. 44 54 21 - 97 0 0 44 9 41 4 14 8 2 70 -43 44 5 9 44 14 14 .. .. .. 45 12 2 - 96 0 0 44 27 15 4 14 9 3 70 -43 44 22 43 44 31 48 .. .. .. 45 29 34 - 95 0 0 44 44 41 4 14 10 4 71 -44 44 40 9 44 49 14 .. .. .. 45 46 57 - 94 0 0 45 1 58 4 14 11 4 72 -44 44 57 26 45 6 31 .. .. .. 46 4 12 - 93 0 0 45 19 6 4 14 12 5 72 -44 45 14 34 45 23 38 .. .. .. 46 21 17 - 92 0 0 45 36 4 4 14 13 6 73 -44 45 31 32 45 40 36 .. .. .. 46 38 12 - 91 0 0 45 52 52 4 14 14 7 74 -45 45 48 21 45 57 24 44 51 44 46 54 58 - 90 0 0 46 9 31 4 14 16 7 75 -45 46 4 59 46 14 2 45 8 26 47 11 33 - 89 0 0 46 25 59 4 14 18 8 75 -45 46 21 27 46 30 30 45 24 57 47 27 57 - 88 0 0 46 42 16 4 14 20 9 76 -45 46 37 45 46 46 47 45 41 17 47 44 11 - 87 0 0 46 58 22 4 14 22 10 77 -45 46 53 52 47 2 53 45 57 28 48 0 13 - 86 0 0 47 14 17 4 14 24 10 78 -45 47 9 47 47 18 48 46 13 27 48 16 5 - 85 0 0 47 30 1 4 14 27 11 78 -45 47 25 31 47 34 32 46 29 14 48 31 44 - 84 0 0 47 45 33 4 14 29 12 79 -45 47 41 4 47 50 3 46 44 51 48 47 12 - 83 0 0 48 0 54 4 14 32 13 80 -45 47 56 24 48 5 23 47 0 15 49 2 28 - 82 0 0 48 16 2 4 14 35 13 81 -45 48 11 33 48 20 31 47 15 28 49 17 32 - 81 0 0 48 30 58 4 14 37 14 82 -45 48 26 29 48 35 27 47 30 28 49 32 23 - 80 0 0 48 45 41 4 14 41 15 82 -45 48 41 13 48 50 10 47 45 16 49 47 1 - 79 0 0 49 0 12 4 14 44 15 83 -45 48 55 44 49 4 40 47 59 52 50 1 27 - 78 0 0 49 14 30 4 14 47 16 84 -45 49 10 2 49 18 58 48 14 15 50 15 40 - 77 0 0 49 28 35 4 14 51 17 85 -45 49 24 8 49 33 3 48 28 25 50 29 40 - 76 0 0 49 42 27 4 14 54 17 86 -45 49 38 0 49 46 54 48 42 21 50 43 26 - 75 0 0 49 56 5 4 14 58 18 86 -45 49 51 39 50 0 32 48 56 5 50 56 59 - 74 0 0 50 9 30 4 15 2 19 87 -45 50 5 4 50 13 57 49 9 35 51 10 19 - 73 0 0 50 22 42 4 15 5 19 88 -45 50 18 16 50 27 8 49 22 52 51 23 25 - 72 0 0 50 35 40 4 15 10 20 89 -45 50 31 14 50 40 5 49 35 56 51 36 17 - 71 0 0 50 48 24 4 15 14 21 90 -45 50 43 59 50 52 49 49 48 45 51 48 55 - 70 0 0 51 0 54 4 15 18 21 91 -45 50 56 30 51 5 19 50 1 21 52 1 20 - 69 0 0 51 13 10 4 15 22 22 92 -44 51 8 46 51 17 35 50 13 43 52 13 30 - 68 0 0 51 25 13 4 15 27 23 92 -44 51 20 49 51 29 37 50 25 51 52 25 27 - 67 0 0 51 37 1 4 15 31 23 93 -44 51 32 38 51 41 24 50 37 44 52 37 9 - 66 0 0 51 48 35 4 15 36 24 94 -44 51 44 12 51 52 58 50 49 24 52 48 37 - 65 0 0 51 59 54 4 15 40 24 95 -44 51 55 32 52 4 17 51 0 49 52 59 51 - 64 0 0 52 11 0 4 15 45 25 96 -43 52 6 38 52 15 22 51 12 0 53 10 50 - 63 0 0 52 21 51 4 15 50 26 97 -43 52 17 29 52 26 12 51 22 57 53 21 35 - 62 0 0 52 32 27 4 15 55 26 98 -43 52 28 6 52 36 49 51 33 39 53 32 6 - 61 0 0 52 42 49 4 16 0 27 99 -43 52 38 29 52 47 10 51 44 7 53 42 22 - 60 0 0 52 52 57 4 16 5 27 100 -42 52 48 37 52 57 18 51 54 20 53 52 24 - 59 0 0 53 2 50 4 16 10 28 101 -42 52 58 30 53 7 10 52 4 19 54 2 12 - 58 0 0 53 12 29 4 16 15 29 102 -42 53 8 10 53 16 49 52 14 3 54 11 45 - 57 0 0 53 21 53 4 16 21 29 103 -42 53 17 34 53 26 12 52 23 33 54 21 3 - 56 0 0 53 31 3 4 16 26 30 104 -41 53 26 44 53 35 22 52 32 48 54 30 7 - 55 0 0 53 39 58 4 16 31 30 105 -41 53 35 40 53 44 16 52 41 48 54 38 57 - 54 0 0 53 48 38 4 16 37 31 106 -41 53 44 20 53 52 56 52 50 34 54 47 32 - 53 0 0 53 57 4 4 16 42 31 107 -40 53 52 47 54 1 22 52 59 5 54 55 52 - 52 0 0 54 5 16 4 16 48 32 108 -40 54 0 59 54 9 33 53 7 22 55 3 58 - 51 0 0 54 13 12 4 16 54 32 109 -40 54 8 56 54 17 29 53 15 24 55 11 49 - 50 0 0 54 20 55 4 17 0 33 110 -39 54 16 38 54 25 11 53 23 11 55 19 27 - 49 0 0 54 28 22 4 17 5 33 111 -39 54 24 6 54 32 38 53 30 43 55 26 49 - 48 0 0 54 35 35 4 17 11 34 112 -39 54 31 20 54 39 51 53 38 1 55 33 57 - 47 0 0 54 42 34 4 17 17 34 113 -38 54 38 19 54 46 50 53 45 5 55 40 51 - 46 0 0 54 49 18 4 17 23 35 114 -38 54 45 3 54 53 33 53 51 53 55 47 30 - 45 0 0 54 55 48 4 17 29 35 115 -37 54 51 33 55 0 3 53 58 27 55 53 55 - 44 0 0 55 2 3 4 17 35 36 116 -37 54 57 49 55 6 17 54 4 47 56 0 6 - 43 0 0 55 8 4 4 17 41 36 117 -37 55 3 50 55 12 18 54 10 52 56 6 2 - 42 0 0 55 13 50 4 17 47 37 118 -36 55 9 36 55 18 4 54 16 42 56 11 44 - 41 0 0 55 19 22 4 17 54 37 119 -36 55 15 8 55 23 35 54 22 18 56 17 12 - 40 0 0 55 24 39 4 18 0 38 121 -36 55 20 26 55 28 52 54 27 39 56 22 25 - 39 0 0 55 29 42 4 18 6 38 122 -35 55 25 30 55 33 55 54 32 46 56 27 25 - 38 0 0 55 34 31 4 18 13 39 123 -35 55 30 18 55 38 44 54 37 38 56 32 10 - 37 0 0 55 39 5 4 18 19 39 124 -34 55 34 53 55 43 18 54 42 16 56 36 40 - 36 0 0 55 43 25 4 18 25 40 125 -34 55 39 13 55 47 37 54 46 39 56 40 57 - 35 0 0 55 47 31 4 18 32 40 126 -33 55 43 19 55 51 43 54 50 48 56 44 59 - 34 0 0 55 51 22 4 18 38 40 127 -33 55 47 11 55 55 34 54 54 43 56 48 48 - 33 0 0 55 54 59 4 18 45 41 129 -33 55 50 48 55 59 11 54 58 23 56 52 22 - 32 0 0 55 58 22 4 18 51 41 130 -32 55 54 11 56 2 34 55 1 48 56 55 42 - 31 0 0 56 1 31 4 18 58 42 131 -32 55 57 20 56 5 42 55 4 59 56 58 48 - 30 0 0 56 4 25 4 19 5 42 132 -31 56 0 15 56 8 36 55 7 56 57 1 40 - 29 0 0 56 7 5 4 19 12 42 134 -31 56 2 55 56 11 16 55 10 38 57 4 18 - 28 0 0 56 9 31 4 19 18 43 135 -30 56 5 21 56 13 42 55 13 6 57 6 42 - 27 0 0 56 11 43 4 19 25 43 136 -30 56 7 33 56 15 54 55 15 20 57 8 52 - 26 0 0 56 13 41 4 19 32 44 137 -30 56 9 31 56 17 51 55 17 19 57 10 48 - 25 0 0 56 15 24 4 19 39 44 139 -29 56 11 14 56 19 35 55 19 4 57 12 30 - 24 0 0 56 16 54 4 19 46 44 140 -29 56 12 44 56 21 4 55 20 34 57 13 58 - 23 0 0 56 18 9 4 19 53 45 141 -28 56 13 59 56 22 19 55 21 51 57 15 12 - 22 0 0 56 19 10 4 20 0 45 143 -28 56 15 0 56 23 20 55 22 53 57 16 11 - 21 0 0 56 19 56 4 20 7 45 144 -27 56 15 47 56 24 6 55 23 40 57 16 57 - 20 0 0 56 20 29 4 20 14 46 145 -27 56 16 19 56 24 39 55 24 13 57 17 29 - 19 0 0 56 20 47 4 20 21 46 147 -26 56 16 38 56 24 57 55 24 32 57 17 47 - 18 0 0 56 20 52 4 20 28 46 148 -26 56 16 42 56 25 2 55 24 37 57 17 51 - 17 0 0 56 20 42 4 20 35 47 149 -25 56 16 32 56 24 52 55 24 27 57 17 42 - 16 0 0 56 20 18 4 20 43 47 151 -25 56 16 8 56 24 28 55 24 3 57 17 18 - 15 0 0 56 19 39 4 20 50 47 152 -24 56 15 30 56 23 49 55 23 24 57 16 40 - 14 0 0 56 18 47 4 20 57 47 154 -24 56 14 37 56 22 57 55 22 31 57 15 48 - 13 0 0 56 17 40 4 21 4 48 155 -23 56 13 30 56 21 50 55 21 24 57 14 42 - 12 0 0 56 16 19 4 21 12 48 156 -23 56 12 9 56 20 29 55 20 2 57 13 22 - 11 0 0 56 14 44 4 21 19 48 158 -22 56 10 34 56 18 54 55 18 26 57 11 48 - 10 0 0 56 12 55 4 21 27 48 159 -22 56 8 45 56 17 5 55 16 35 57 9 59 - 9 0 0 56 10 51 4 21 34 49 161 -21 56 6 41 56 15 1 55 14 30 57 7 57 - 8 0 0 56 8 33 4 21 42 49 162 -21 56 4 23 56 12 43 55 12 10 57 5 41 - 7 0 0 56 6 1 4 21 49 49 164 -20 56 1 50 56 10 11 55 9 36 57 3 10 - 6 0 0 56 3 14 4 21 57 49 165 -20 55 59 3 56 7 25 55 6 48 57 0 25 - 5 0 0 56 0 13 4 22 4 49 167 -19 55 56 2 56 4 24 55 3 44 56 57 26 - 4 0 0 55 56 57 4 22 12 50 168 -19 55 52 46 56 1 8 55 0 27 56 54 13 - 3 0 0 55 53 27 4 22 20 50 170 -18 55 49 16 55 57 38 54 56 54 56 50 46 - 2 0 0 55 49 43 4 22 28 50 171 -18 55 45 32 55 53 54 54 53 7 56 47 4 - 1 0 0 55 45 44 4 22 35 50 173 -17 55 41 32 55 49 56 54 49 5 56 43 8 0 0 0 55 41 30 4 22 43 50 174 -16 55 37 19 55 45 42 54 44 49 56 38 58 1 0 0 55 37 2 4 22 51 50 176 -16 55 32 51 55 41 14 54 40 18 56 34 33 2 0 0 55 32 20 4 22 59 51 177 -15 55 28 8 55 36 32 54 35 32 56 29 54 3 0 0 55 27 22 4 23 7 51 179 -15 55 23 10 55 31 35 54 30 31 56 25 0 4 0 0 55 22 11 4 23 15 51 181 -14 55 17 58 55 26 23 54 25 16 56 19 52 5 0 0 55 16 44 4 23 23 51 182 -14 55 12 31 55 20 57 54 19 45 56 14 29 6 0 0 55 11 3 4 23 31 51 184 -13 55 6 49 55 15 16 54 14 0 56 8 51 7 0 0 55 5 6 4 23 39 51 185 -13 55 0 53 55 9 20 54 8 0 56 2 59 8 0 0 54 58 55 4 23 47 51 187 -12 54 54 42 55 3 9 54 1 45 55 56 53 9 0 0 54 52 30 4 23 55 51 189 -11 54 48 15 54 56 44 53 55 15 55 50 31 10 0 0 54 45 49 4 24 3 51 190 -11 54 41 34 54 50 4 53 48 30 55 43 55 11 0 0 54 38 53 4 24 12 51 192 -10 54 34 39 54 43 8 53 41 30 55 37 4 12 0 0 54 31 43 4 24 20 51 193 -10 54 27 28 54 35 58 53 34 14 55 29 59 13 0 0 54 24 17 4 24 28 51 195 -9 54 20 2 54 28 33 53 26 44 55 22 38 14 0 0 54 16 37 4 24 36 51 197 -8 54 12 21 54 20 53 53 18 59 55 15 3 15 0 0 54 8 41 4 24 45 51 198 -8 54 4 25 54 12 58 53 10 58 55 7 12 16 0 0 54 0 30 4 24 53 51 200 -7 53 56 14 54 4 47 53 2 42 54 59 7 17 0 0 53 52 5 4 25 2 51 201 -7 53 47 48 53 56 22 52 54 11 54 50 47 18 0 0 53 43 24 4 25 10 51 203 -6 53 39 7 53 47 42 52 45 25 54 42 11 19 0 0 53 34 28 4 25 18 50 205 -5 53 30 10 53 38 46 52 36 24 54 33 21 20 0 0 53 25 17 4 25 27 50 206 -5 53 20 59 53 29 35 52 27 7 54 24 16 21 0 0 53 15 51 4 25 35 50 208 -4 53 11 32 53 20 10 52 17 36 54 14 55 22 0 0 53 6 9 4 25 44 50 209 -4 53 1 50 53 10 29 52 7 49 54 5 20 23 0 0 52 56 13 4 25 53 50 211 -3 52 51 53 53 0 32 51 57 46 53 55 29 24 0 0 52 46 1 4 26 1 50 212 -2 52 41 41 52 50 21 51 47 29 53 45 23 25 0 0 52 35 34 4 26 10 50 214 -2 52 31 14 52 39 55 51 36 56 53 35 2 26 0 0 52 24 52 4 26 18 49 216 -1 52 20 31 52 29 13 51 26 8 53 24 26 27 0 0 52 13 55 4 26 27 49 217 0 52 9 34 52 18 16 51 15 6 53 13 35 Uncertainty in time = +/- 16 secs [Prediction of 2008 Nov 16.0] Data for the target star ------------------------ * name: HIP 26748 * constellation : Taurus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 05 40 59.7024 DE: +16 02 39.624 * position source: mpos:HIP2 pm:HIP2 plx:HIP2 * standard error: RA,DE ["]: ( .033, .019 ) * V mag [mag]: 8.9 * B mag [mag]: 10.0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4382) Stravinsky approx. diameter [km]: 12 approx. diameter ["]: .010 distance from Earth [AU]: 1.62800 * orbital information: orbit source: Preston date of fit: 2008 Apr 25 source of used astrometry: MPC (via Astdys) number of used observations: 553 number of rejected observations: 9 time covered by the observations: 1968 Aug 28 - 2007 Jun 19 1 sigma uncertainty ellipse (major, minor, PA): 0.104, 0.055, 80° remarks: * orbital elements for (4382) Stravinsky : Mean anomaly = 32.28362497 deg Arg. of pericenter = 251.12459431 deg Long. of node = 121.05179686 deg Inclination = 6.24083222 deg Eccentricity = 0.19333500 Semimajor axis = 2.54208182 AU Perihelion dist = 2.05060843 AU Mag: H = 12.28, G = 0.15 Epoch of elements : MJD 55111.18300000 TDT (2009 Oct 07.183) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Oct 7 4382 Stravinsky 4h 24.1m UT 8.9 5 40 59.702 16 2 39.62HIP 26748 10.1 16.2 12 1.4 1.628 1.736 -2.87 3.2574 16.046 110.94 -5.54 4.4023 0.07259 0.62187 4.63617 -0.53178 -0.00514 0.00004 2000 31.995948200910 6.00000251.124594121.051797 6.2408320.19333500 2.5420818 2.050608412.3 5.00.15 RATE 2.4317550 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.109 0.058 81 7.30 0.064 0 54786.5020091007__26748 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 16, 16:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org