IOTA/IOTA-ES occultation update for (232) Russia / TYC 1299-00981-1 event on 2012 Oct 05, 21:58 UT Visible from Russia, Europe Summary ------- On 2012 Oct 05 UT, the 53 km diameter asteroid (232) Russia will occult a 9.8 mag star in the constellation Taurus for observers along a path across Russia, Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.6 mag to 15.4 mag (the magnitude of the asteroid) for at most 6.8 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Hugh Harris, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 69 * date and approx. time of event: 2012 Oct 05, 21:46 - 2012 Oct 05, 22:00 UT * geocentric midpoint of event [JD]: 2456206.41594167 * magnitude of target star: 9.8 * magnitude drop [mag]: 5.6 * estimated maximum duration [s]: 6.8 * Moon: 72 % sunlit, 11° distance * Sun: 106° distance * rough path description: Russia, Europe The occultation path -------------------- * approximate projected width [km]: 60 * 1 sigma uncertainty interval [path widths]: +/- 0.86 * 1 sigma uncertainty interval [seconds]: +/- 7.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .034 +/- .025) * 1 sigma uncertainty ellipse (major, minor, PA): ( .034", .025", 89° ) * approx speed of asteroid's shadow [km/s]: 7.7944 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1299-00981-1 by 232 Russia on 2012 Oct 5 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 - 2 0 0 45 29 26 21 46 59 0 67 -41 45 11 35 45 47 21 .. .. .. 46 18 18 - 1 0 0 45 47 25 21 46 59 1 68 -41 45 29 36 46 5 17 44 59 5 46 36 9 0 0 0 46 5 3 21 47 0 2 68 -41 45 47 16 46 22 52 45 16 49 46 53 40 1 0 0 46 22 20 21 47 0 3 69 -42 46 4 36 46 40 7 45 34 13 47 10 50 2 0 0 46 39 16 21 47 1 3 70 -42 46 21 34 46 57 0 45 51 16 47 27 39 3 0 0 46 55 51 21 47 2 4 71 -42 46 38 12 47 13 33 46 7 58 47 44 7 4 0 0 47 12 5 21 47 3 5 71 -42 46 54 28 47 29 44 46 24 19 48 0 14 5 0 0 47 27 58 21 47 4 6 72 -43 47 10 24 47 45 35 46 40 19 48 16 0 6 0 0 47 43 30 21 47 5 6 73 -43 47 25 59 48 1 4 46 55 58 48 31 25 7 0 0 47 58 41 21 47 6 7 74 -43 47 41 12 48 16 13 47 11 16 48 46 29 8 0 0 48 13 31 21 47 8 8 74 -43 47 56 5 48 31 0 47 26 13 49 1 12 9 0 0 48 28 0 21 47 9 8 75 -43 48 10 37 48 45 27 47 40 49 49 15 34 10 0 0 48 42 8 21 47 11 9 76 -43 48 24 47 48 59 33 47 55 4 49 29 35 11 0 0 48 55 56 21 47 13 10 77 -43 48 38 37 49 13 17 48 8 57 49 43 16 12 0 0 49 9 22 21 47 15 10 77 -43 48 52 6 49 26 41 48 22 30 49 56 35 13 0 0 49 22 27 21 47 17 11 78 -44 49 5 14 49 39 44 48 35 42 50 9 34 14 0 0 49 35 12 21 47 19 12 79 -44 49 18 1 49 52 26 48 48 34 50 22 11 15 0 0 49 47 35 21 47 22 13 80 -44 49 30 27 50 4 47 49 1 4 50 34 28 16 0 0 49 59 39 21 47 24 13 80 -44 49 42 32 50 16 48 49 13 14 50 46 25 17 0 0 50 11 21 21 47 27 14 81 -44 49 54 17 50 28 28 49 25 2 50 58 1 18 0 0 50 22 43 21 47 30 15 82 -44 50 5 41 50 39 47 49 36 31 51 9 16 19 0 0 50 33 44 21 47 32 15 83 -44 50 16 45 50 50 46 49 47 38 51 20 11 20 0 0 50 44 25 21 47 35 16 84 -44 50 27 28 51 1 25 49 58 25 51 30 46 21 0 0 50 54 46 21 47 38 17 84 -44 50 37 51 51 11 43 50 8 52 51 41 0 22 0 0 51 4 46 21 47 41 17 85 -44 50 47 53 51 21 41 50 18 58 51 50 54 23 0 0 51 14 26 21 47 45 18 86 -44 50 57 35 51 31 19 50 28 43 52 0 28 24 0 0 51 23 46 21 47 48 18 87 -44 51 6 57 51 40 37 50 38 9 52 9 43 25 0 0 51 32 46 21 47 51 19 88 -43 51 15 59 51 49 35 50 47 14 52 18 37 26 0 0 51 41 25 21 47 55 20 89 -43 51 24 41 51 58 13 50 56 0 52 27 11 27 0 0 51 49 45 21 47 59 20 89 -43 51 33 3 52 6 31 51 4 25 52 35 26 28 0 0 51 57 46 21 48 2 21 90 -43 51 41 5 52 14 29 51 12 30 52 43 21 29 0 0 52 5 26 21 48 6 22 91 -43 51 48 47 52 22 8 51 20 15 52 50 56 30 0 0 52 12 47 21 48 10 22 92 -43 51 56 10 52 29 27 51 27 41 52 58 12 31 0 0 52 19 48 21 48 14 23 93 -43 52 3 13 52 36 26 51 34 47 53 5 9 32 0 0 52 26 30 21 48 18 23 94 -43 52 9 56 52 43 6 51 41 33 53 11 46 33 0 0 52 32 52 21 48 22 24 95 -43 52 16 20 52 49 27 51 47 59 53 18 4 34 0 0 52 38 55 21 48 26 25 95 -42 52 22 24 52 55 28 51 54 6 53 24 3 35 0 0 52 44 38 21 48 31 25 96 -42 52 28 9 53 1 10 51 59 53 53 29 42 36 0 0 52 50 3 21 48 35 26 97 -42 52 33 35 53 6 33 52 5 21 53 35 3 37 0 0 52 55 8 21 48 39 27 98 -42 52 38 41 53 11 37 52 10 30 53 40 4 38 0 0 52 59 54 21 48 44 27 99 -42 52 43 28 53 16 21 52 15 19 53 44 47 39 0 0 53 4 20 21 48 49 28 100 -42 52 47 56 53 20 47 52 19 49 53 49 10 40 0 0 53 8 28 21 48 53 28 101 -41 52 52 5 53 24 54 52 24 0 53 53 15 41 0 0 53 12 17 21 48 58 29 102 -41 52 55 55 53 28 42 52 27 52 53 57 1 42 0 0 53 15 47 21 49 3 29 103 -41 52 59 26 53 32 10 52 31 24 54 0 28 43 0 0 53 18 58 21 49 8 30 104 -41 53 2 38 53 35 20 52 34 37 54 3 37 44 0 0 53 21 50 21 49 13 31 105 -40 53 5 30 53 38 12 52 37 32 54 6 27 45 0 0 53 24 23 21 49 18 31 105 -40 53 8 4 53 40 44 52 40 7 54 8 58 46 0 0 53 26 37 21 49 23 32 106 -40 53 10 19 53 42 58 52 42 23 54 11 10 47 0 0 53 28 33 21 49 29 32 107 -40 53 12 15 53 44 53 52 44 20 54 13 4 48 0 0 53 30 10 21 49 34 33 108 -39 53 13 53 53 46 29 52 45 58 54 14 39 49 0 0 53 31 28 21 49 39 33 109 -39 53 15 11 53 47 46 52 47 17 54 15 56 50 0 0 53 32 27 21 49 45 34 110 -39 53 16 11 53 48 45 52 48 17 54 16 54 51 0 0 53 33 7 21 49 51 35 111 -39 53 16 51 53 49 25 52 48 58 54 17 34 52 0 0 53 33 28 21 49 56 35 112 -38 53 17 13 53 49 47 52 49 20 54 17 55 53 0 0 53 33 31 21 50 2 36 113 -38 53 17 16 53 49 49 52 49 23 54 17 57 54 0 0 53 33 15 21 50 8 36 114 -38 53 17 0 53 49 33 52 49 7 54 17 41 55 0 0 53 32 40 21 50 14 37 115 -37 53 16 24 53 48 58 52 48 32 54 17 6 56 0 0 53 31 46 21 50 20 37 116 -37 53 15 30 53 48 4 52 47 38 54 16 12 57 0 0 53 30 33 21 50 26 38 117 -37 53 14 17 53 46 52 52 46 25 54 15 0 58 0 0 53 29 1 21 50 32 39 118 -36 53 12 45 53 45 20 52 44 52 54 13 29 59 0 0 53 27 11 21 50 38 39 119 -36 53 10 54 53 43 30 52 43 0 54 11 39 60 0 0 53 25 1 21 50 45 40 120 -36 53 8 44 53 41 20 52 40 49 54 9 31 61 0 0 53 22 32 21 50 51 40 121 -35 53 6 14 53 38 52 52 38 19 54 7 3 62 0 0 53 19 44 21 50 57 41 122 -35 53 3 26 53 36 4 52 35 29 54 4 17 63 0 0 53 16 36 21 51 4 41 124 -35 53 0 18 53 32 57 52 32 20 54 1 11 64 0 0 53 13 10 21 51 11 42 125 -34 52 56 50 53 29 31 52 28 51 53 57 46 65 0 0 53 9 24 21 51 18 42 126 -34 52 53 3 53 25 46 52 25 3 53 54 2 66 0 0 53 5 18 21 51 24 43 127 -33 52 48 57 53 21 42 52 20 55 53 49 59 67 0 0 53 0 53 21 51 31 43 128 -33 52 44 31 53 17 17 52 16 27 53 45 37 68 0 0 52 56 8 21 51 38 44 129 -33 52 39 45 53 12 34 52 11 40 53 40 55 69 0 0 52 51 4 21 51 45 44 130 -32 52 34 39 53 7 30 52 6 32 53 35 54 70 0 0 52 45 39 21 51 53 45 131 -32 52 29 14 53 2 7 52 1 5 53 30 33 71 0 0 52 39 55 21 52 0 46 133 -31 52 23 28 52 56 24 51 55 17 53 24 52 72 0 0 52 33 51 21 52 7 46 134 -31 52 17 22 52 50 21 51 49 9 53 18 51 73 0 0 52 27 26 21 52 15 47 135 -31 52 10 56 52 43 58 51 42 40 53 12 31 74 0 0 52 20 41 21 52 23 47 136 -30 52 4 10 52 37 15 51 35 52 53 5 50 75 0 0 52 13 36 21 52 30 48 137 -30 51 57 3 52 30 11 51 28 42 52 58 49 76 0 0 52 6 10 21 52 38 48 139 -29 51 49 36 52 22 47 51 21 12 52 51 28 77 0 0 51 58 24 21 52 46 49 140 -29 51 41 48 52 15 2 51 13 21 52 43 46 78 0 0 51 50 16 21 52 54 49 141 -28 51 33 39 52 6 57 51 5 9 52 35 44 79 0 0 51 41 48 21 53 2 50 142 -28 51 25 9 51 58 31 50 56 35 52 27 21 80 0 0 51 32 59 21 53 10 50 144 -27 51 16 17 51 49 43 50 47 41 52 18 37 81 0 0 51 23 48 21 53 19 51 145 -27 51 7 5 51 40 35 50 38 25 52 9 32 82 0 0 51 14 17 21 53 27 51 147 -26 50 57 31 51 31 5 50 28 47 52 0 6 83 0 0 51 4 23 21 53 36 52 148 -26 50 47 35 51 21 14 50 18 48 51 50 18 84 0 0 50 54 8 21 53 44 52 149 -25 50 37 18 51 11 1 50 8 27 51 40 9 85 0 0 50 43 31 21 53 53 53 151 -25 50 26 39 51 0 26 49 57 45 51 29 39 86 0 0 50 32 33 21 54 2 53 152 -24 50 15 38 50 49 30 49 46 40 51 18 46 87 0 0 50 21 12 21 54 11 54 154 -24 50 4 15 50 38 11 49 35 12 51 7 32 88 0 0 50 9 29 21 54 20 54 155 -23 49 52 29 50 26 31 49 23 23 50 55 55 89 0 0 49 57 23 21 54 29 54 157 -23 49 40 21 50 14 28 49 11 10 50 43 57 90 0 0 49 44 55 21 54 38 55 158 -22 49 27 51 50 2 2 48 58 36 50 31 35 91 0 0 49 32 4 21 54 48 55 160 -21 49 14 58 49 49 14 48 45 38 50 18 52 92 0 0 49 18 51 21 54 57 56 161 -21 49 1 41 49 36 3 48 32 17 50 5 46 93 0 0 49 5 14 21 55 7 56 163 -20 48 48 2 49 22 29 48 18 34 49 52 16 94 0 0 48 51 15 21 55 17 57 165 -20 48 34 0 49 8 33 48 4 27 49 38 24 95 0 0 48 36 52 21 55 27 57 167 -19 48 19 35 48 54 13 47 49 57 49 24 9 96 0 0 48 22 6 21 55 37 57 168 -18 48 4 46 48 39 29 47 35 3 49 9 31 97 0 0 48 6 56 21 55 47 58 170 -18 47 49 33 48 24 23 47 19 46 48 54 29 98 0 0 47 51 23 21 55 57 58 172 -17 47 33 57 48 8 52 47 4 5 48 39 4 99 0 0 47 35 27 21 56 8 59 174 -17 47 17 58 47 52 58 46 48 1 48 23 15 100 0 0 47 19 6 21 56 18 59 176 -16 47 1 34 47 36 41 46 31 33 48 7 2 101 0 0 47 2 22 21 56 29 59 178 -15 46 44 47 47 19 59 46 14 40 47 50 26 102 0 0 46 45 14 21 56 40 59 180 -15 46 27 36 47 2 54 45 57 24 47 33 26 103 0 0 46 27 42 21 56 51 60 182 -14 46 10 1 46 45 25 45 39 44 47 16 2 104 0 0 46 9 45 21 57 2 60 184 -13 45 52 2 46 27 32 45 21 40 46 58 14 105 0 0 45 51 25 21 57 13 60 186 -13 45 33 39 46 9 15 45 3 12 46 40 2 106 0 0 45 32 41 21 57 24 60 188 -12 45 14 52 45 50 34 44 44 20 46 21 26 107 0 0 45 13 33 21 57 35 61 190 -11 44 55 41 45 31 28 44 25 4 46 2 26 108 0 0 44 54 1 21 57 47 61 192 -10 44 36 6 45 11 59 44 5 24 45 43 2 109 0 0 44 34 5 21 57 59 61 194 -10 44 16 7 44 52 6 43 45 20 45 23 13 110 0 0 44 13 44 21 58 10 61 197 -9 43 55 44 44 31 49 43 24 52 45 3 1 111 0 0 43 53 1 21 58 22 61 199 -8 43 34 57 44 11 8 43 4 0 44 42 25 112 0 0 43 31 53 21 58 34 61 201 -7 43 13 46 43 50 3 42 42 45 44 21 26 113 0 0 43 10 22 21 58 46 61 203 -7 42 52 12 43 28 34 42 21 6 44 0 2 114 0 0 42 48 27 21 58 58 61 206 -6 42 30 15 43 6 42 41 59 4 43 38 15 115 0 0 42 26 9 21 59 11 61 208 -5 42 7 54 42 44 27 41 36 38 43 16 4 116 0 0 42 3 28 21 59 23 61 210 -4 41 45 10 42 21 49 41 13 50 42 53 31 117 0 0 41 40 24 21 59 35 61 213 -4 41 22 3 41 58 47 40 50 39 42 30 34 118 0 0 41 16 57 21 59 48 61 215 -3 40 58 34 41 35 23 40 27 5 42 7 14 119 0 0 40 53 8 22 0 1 61 217 -2 40 34 43 41 11 37 40 3 9 41 43 32 120 0 0 40 28 57 22 0 13 61 219 -1 40 10 29 40 47 28 39 38 52 41 19 28 121 0 0 40 4 24 22 0 26 61 222 0 39 45 54 40 22 58 39 14 13 40 55 2 Uncertainty in time = +/- 8 secs Prediction of 2012 Aug 26.0 Data for the target star ------------------------ * name: TYC 1299-00981-1 * constellation : Taurus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 05 44 40.6976 DE: +16 12 09.614 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .029, .023 ) * V mag [mag]: 9.8 * B mag [mag]: 9.9 * Apparent position with proper motion RA(deg): 86.3595009384 DE(deg): 16.2069133192 * Equation of equinoxes (radians) : 0.000062214800749 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (232) Russia approx. diameter [km]: 53 approx. diameter ["]: .031 distance from Earth [AU]: 2.39400 * orbital information: orbit source: Preston date of fit: 2012 Jul 09 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 1000 number of rejected observations: 71 time covered by the observations: 1913 Sep 24 - 2011 Dec 28 1 sigma uncertainty ellipse (major, minor, PA): 0.019, 0.010, 86° remarks: * orbital elements for (232) Russia : Mean anomaly = 237.43375634 deg Arg. of pericenter = 51.60353992 deg Long. of node = 152.33690601 deg Inclination = 6.06125140 deg Eccentricity = 0.17453121 Semimajor axis = 2.55516754 AU Perihelion dist = 2.10921105 AU Mag: H = 10.37, G = 0.15 Epoch of elements : MJD 56205.91600000 TDT (2012 Oct 05.916) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Oct 5 232 Russia 21h 59.0m UT 9.8 5 44 40.698 16 12 9.61TYC 1299-00981-1 9.9 15.4 53 6.8 2.394 1.059 -5.31 101.4536 16.205 -152.70 -5.16 21.9826 0.15625 0.44920 4.15519 -1.44537 -0.00552 0.00006 2000 236.0061672012 930.00000 51.603540152.336906 6.0612510.17453121 2.5551675 2.109211110.3 5.00.15 RATE 2.4130980 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.034 0.025 89 1.86 0.027 0 0-4 4 056165.0020121005_0981-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Aug 26, 00:57 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org