IOTA/IOTA-ES occultation update for (1211) Bressole / TYC 0825-00664-1 event on 2012 Nov 14, 17:57 UT Visible from Japan, China Summary ------- On 2012 Nov 14 UT, the 44 km diameter asteroid (1211) Bressole will occult a 10.7 mag star in the constellation Cancer for observers along a path across Japan, China. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.7 mag to 16.4 mag (the magnitude of the asteroid) for at most 4.2 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: 44 * date and approx. time of event: 2012 Nov 14, 17:48 - 2012 Nov 14, 17:59 UT * geocentric midpoint of event [JD]: 2456246.2481375 * magnitude of target star: 10.7 * magnitude drop [mag]: 5.7 * estimated maximum duration [s]: 4.2 * Moon: 1 % sunlit, 108° distance * Sun: 96° distance * rough path description: Japan, China The occultation path -------------------- * approximate projected width [km]: 50 * 1 sigma uncertainty interval [path widths]: +/- 1.47 * 1 sigma uncertainty interval [seconds]: +/- 7.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .037 +/- .029) * 1 sigma uncertainty ellipse (major, minor, PA): ( .037", .029", 93° ) * approx speed of asteroid's shadow [km/s]: 10.4625 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0825-00664-1 by 1211 Bressole on 2012 Nov 14 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 79 0 0 32 56 28 17 48 27 1 75 -73 32 42 20 33 10 38 .. .. .. 33 52 30 80 0 0 33 10 43 17 48 27 2 75 -73 32 56 35 33 24 53 .. .. .. 34 6 43 81 0 0 33 24 52 17 48 27 2 76 -73 33 10 44 33 39 2 .. .. .. 34 20 51 82 0 0 33 38 55 17 48 28 3 76 -74 33 24 47 33 53 4 .. .. .. 34 34 52 83 0 0 33 52 51 17 48 29 4 77 -74 33 38 44 34 7 0 32 57 25 34 48 47 84 0 0 34 6 41 17 48 29 5 77 -74 33 52 34 34 20 49 33 11 16 35 2 35 85 0 0 34 20 23 17 48 30 6 78 -74 34 6 17 34 34 31 33 25 1 35 16 16 86 0 0 34 33 59 17 48 32 7 79 -74 34 19 53 34 48 6 33 38 38 35 29 50 87 0 0 34 47 27 17 48 33 8 79 -74 34 33 21 35 1 34 33 52 7 35 43 16 88 0 0 35 0 47 17 48 34 8 80 -73 34 46 42 35 14 54 34 5 30 35 56 34 89 0 0 35 13 59 17 48 36 9 80 -73 34 59 55 35 28 5 34 18 44 36 9 45 90 0 0 35 27 3 17 48 38 10 81 -73 35 13 0 35 41 9 34 31 50 36 22 47 91 0 0 35 39 59 17 48 40 11 81 -73 35 25 56 35 54 4 34 44 48 36 35 40 92 0 0 35 52 46 17 48 42 12 82 -72 35 38 44 36 6 51 34 57 37 36 48 25 93 0 0 36 5 25 17 48 44 13 83 -72 35 51 22 36 19 29 35 10 17 37 1 2 94 0 0 36 17 54 17 48 46 14 83 -72 36 3 52 36 31 57 35 22 49 37 13 29 95 0 0 36 30 14 17 48 49 14 84 -71 36 16 13 36 44 17 35 35 11 37 25 46 96 0 0 36 42 25 17 48 51 15 85 -71 36 28 24 36 56 27 35 47 24 37 37 55 97 0 0 36 54 26 17 48 54 16 85 -70 36 40 26 37 8 27 35 59 28 37 49 53 98 0 0 37 6 17 17 48 57 17 86 -70 36 52 18 37 20 18 36 11 21 38 1 42 99 0 0 37 17 58 17 49 0 18 86 -69 37 4 0 37 31 59 36 23 5 38 13 21 100 0 0 37 29 30 17 49 3 18 87 -69 37 15 32 37 43 29 36 34 39 38 24 49 101 0 0 37 40 50 17 49 6 19 88 -68 37 26 53 37 54 50 36 46 2 38 36 8 102 0 0 37 52 1 17 49 9 20 89 -67 37 38 4 38 5 59 36 57 15 38 47 15 103 0 0 38 3 1 17 49 13 21 89 -67 37 49 5 38 16 58 37 8 18 38 58 13 104 0 0 38 13 50 17 49 17 22 90 -66 37 59 54 38 27 47 37 19 9 39 8 59 105 0 0 38 24 28 17 49 20 22 91 -66 38 10 33 38 38 24 37 29 50 39 19 34 106 0 0 38 34 55 17 49 24 23 91 -65 38 21 1 38 48 50 37 40 20 39 29 59 107 0 0 38 45 11 17 49 28 24 92 -64 38 31 17 38 59 6 37 50 38 39 40 12 108 0 0 38 55 15 17 49 32 25 93 -64 38 41 23 39 9 9 38 0 46 39 50 13 109 0 0 39 5 8 17 49 36 26 93 -63 38 51 16 39 19 2 38 10 41 40 0 4 110 0 0 39 14 50 17 49 41 26 94 -62 39 0 59 39 28 43 38 20 25 40 9 42 111 0 0 39 24 19 17 49 45 27 95 -62 39 10 29 39 38 12 38 29 58 40 19 9 112 0 0 39 33 37 17 49 50 28 96 -61 39 19 48 39 47 29 38 39 19 40 28 25 113 0 0 39 42 43 17 49 54 29 96 -60 39 28 54 39 56 34 38 48 27 40 37 28 114 0 0 39 51 37 17 49 59 29 97 -59 39 37 49 40 5 28 38 57 24 40 46 19 115 0 0 40 0 19 17 50 4 30 98 -59 39 46 32 40 14 9 39 6 9 40 54 58 116 0 0 40 8 49 17 50 9 31 99 -58 39 55 2 40 22 38 39 14 41 41 3 25 117 0 0 40 17 6 17 50 14 32 100 -57 40 3 20 40 30 55 39 23 1 41 11 40 118 0 0 40 25 11 17 50 19 32 101 -57 40 11 26 40 38 59 39 31 9 41 19 42 119 0 0 40 33 4 17 50 24 33 101 -56 40 19 19 40 46 51 39 39 4 41 27 32 120 0 0 40 40 44 17 50 29 34 102 -55 40 27 0 40 54 30 39 46 46 41 35 9 121 0 0 40 48 11 17 50 34 35 103 -54 40 34 28 41 1 57 39 54 16 41 42 34 122 0 0 40 55 26 17 50 40 35 104 -54 40 41 43 41 9 11 40 1 33 41 49 46 123 0 0 41 2 28 17 50 45 36 105 -53 40 48 45 41 16 12 40 8 38 41 56 46 124 0 0 41 9 17 17 50 51 37 106 -52 40 55 35 41 23 1 40 15 29 42 3 32 125 0 0 41 15 53 17 50 57 38 107 -51 41 2 12 41 29 36 40 22 8 42 10 6 126 0 0 41 22 16 17 51 3 38 108 -51 41 8 36 41 35 59 40 28 33 42 16 27 127 0 0 41 28 26 17 51 8 39 109 -50 41 14 46 41 42 8 40 34 46 42 22 35 128 0 0 41 34 24 17 51 14 40 109 -49 41 20 44 41 48 5 40 40 45 42 28 30 129 0 0 41 40 8 17 51 20 40 110 -48 41 26 29 41 53 48 40 46 31 42 34 11 130 0 0 41 45 38 17 51 26 41 111 -48 41 32 0 41 59 19 40 52 4 42 39 40 131 0 0 41 50 56 17 51 33 42 112 -47 41 37 18 42 4 36 40 57 24 42 44 56 132 0 0 41 56 0 17 51 39 42 113 -46 41 42 23 42 9 40 41 2 30 42 49 58 133 0 0 42 0 52 17 51 45 43 115 -45 41 47 15 42 14 30 41 7 23 42 54 47 134 0 0 42 5 29 17 51 52 44 116 -45 41 51 53 42 19 7 41 12 3 42 59 23 135 0 0 42 9 54 17 51 58 44 117 -44 41 56 18 42 23 31 41 16 29 43 3 46 136 0 0 42 14 5 17 52 5 45 118 -43 42 0 29 42 27 42 41 20 41 43 7 55 137 0 0 42 18 2 17 52 11 46 119 -42 42 4 27 42 31 39 41 24 41 43 11 51 138 0 0 42 21 46 17 52 18 46 120 -42 42 8 12 42 35 23 41 28 26 43 15 33 139 0 0 42 25 17 17 52 24 47 121 -41 42 11 43 42 38 53 41 31 58 43 19 3 140 0 0 42 28 34 17 52 31 47 122 -40 42 15 0 42 42 10 41 35 17 43 22 18 141 0 0 42 31 38 17 52 38 48 123 -39 42 18 4 42 45 13 41 38 22 43 25 20 142 0 0 42 34 28 17 52 45 49 125 -39 42 20 54 42 48 3 41 41 13 43 28 9 143 0 0 42 37 4 17 52 52 49 126 -38 42 23 31 42 50 39 41 43 50 43 30 44 144 0 0 42 39 27 17 52 59 50 127 -37 42 25 54 42 53 1 41 46 14 43 33 6 145 0 0 42 41 36 17 53 6 50 129 -36 42 28 3 42 55 10 41 48 24 43 35 14 146 0 0 42 43 31 17 53 13 51 130 -36 42 29 59 42 57 5 41 50 21 43 37 9 147 0 0 42 45 13 17 53 20 52 131 -35 42 31 41 42 58 47 41 52 3 43 38 50 148 0 0 42 46 41 17 53 27 52 133 -34 42 33 9 43 0 15 41 53 32 43 40 17 149 0 0 42 47 56 17 53 35 53 134 -33 42 34 24 43 1 29 41 54 47 43 41 31 150 0 0 42 48 57 17 53 42 53 135 -33 42 35 25 43 2 30 41 55 48 43 42 31 151 0 0 42 49 44 17 53 49 54 137 -32 42 36 12 43 3 17 41 56 36 43 43 18 152 0 0 42 50 17 17 53 57 54 138 -31 42 36 45 43 3 50 41 57 9 43 43 51 153 0 0 42 50 36 17 54 4 55 140 -30 42 37 5 43 4 10 41 57 29 43 44 10 154 0 0 42 50 42 17 54 12 55 141 -30 42 37 11 43 4 15 41 57 35 43 44 16 155 0 0 42 50 34 17 54 19 56 143 -29 42 37 3 43 4 7 41 57 27 43 44 8 156 0 0 42 50 12 17 54 27 56 144 -28 42 36 41 43 3 46 41 57 5 43 43 46 157 0 0 42 49 37 17 54 35 56 146 -27 42 36 5 43 3 10 41 56 30 43 43 11 158 0 0 42 48 48 17 54 42 57 148 -27 42 35 16 43 2 21 41 55 40 43 42 22 159 0 0 42 47 45 17 54 50 57 149 -26 42 34 13 43 1 18 41 54 37 43 41 19 160 0 0 42 46 28 17 54 58 58 151 -25 42 32 56 43 0 1 41 53 19 43 40 3 161 0 0 42 44 57 17 55 6 58 153 -24 42 31 25 42 58 31 41 51 48 43 38 32 162 0 0 42 43 13 17 55 13 58 155 -23 42 29 41 42 56 46 41 50 3 43 36 49 163 0 0 42 41 14 17 55 21 59 157 -23 42 27 42 42 54 48 41 48 4 43 34 51 164 0 0 42 39 2 17 55 29 59 158 -22 42 25 30 42 52 36 41 45 51 43 32 40 165 0 0 42 36 37 17 55 37 59 160 -21 42 23 4 42 50 11 41 43 25 43 30 15 166 0 0 42 33 57 17 55 45 60 162 -20 42 20 24 42 47 32 41 40 44 43 27 37 167 0 0 42 31 4 17 55 53 60 164 -20 42 17 31 42 44 38 41 37 50 43 24 44 168 0 0 42 27 57 17 56 1 60 166 -19 42 14 23 42 41 32 41 34 41 43 21 38 169 0 0 42 24 36 17 56 9 60 168 -18 42 11 2 42 38 11 41 31 19 43 18 19 170 0 0 42 21 1 17 56 17 61 170 -17 42 7 27 42 34 37 41 27 43 43 14 46 171 0 0 42 17 13 17 56 25 61 172 -17 42 3 38 42 30 49 41 23 54 43 10 59 172 0 0 42 13 11 17 56 34 61 174 -16 41 59 36 42 26 47 41 19 50 43 6 58 173 0 0 42 8 55 17 56 42 61 176 -15 41 55 20 42 22 32 41 15 33 43 2 44 174 0 0 42 4 26 17 56 50 61 178 -14 41 50 50 42 18 3 41 11 2 42 58 17 175 0 0 41 59 43 17 56 58 61 181 -14 41 46 7 42 13 21 41 6 17 42 53 35 176 0 0 41 54 46 17 57 6 61 183 -13 41 41 9 42 8 24 41 1 19 42 48 41 177 0 0 41 49 36 17 57 15 61 185 -12 41 35 59 42 3 15 40 56 6 42 43 32 178 0 0 41 44 12 17 57 23 61 187 -11 41 30 34 41 57 51 40 50 41 42 38 10 179 0 0 41 38 35 17 57 31 61 189 -10 41 24 56 41 52 14 40 45 1 42 32 35 180 0 0 41 32 44 17 57 39 61 191 -10 41 19 5 41 46 24 40 39 8 42 26 46 -179 0 0 41 26 39 17 57 48 61 193 -9 41 13 0 41 40 20 40 33 2 42 20 44 -178 0 0 41 20 21 17 57 56 61 195 -8 41 6 42 41 34 3 40 26 41 42 14 29 -177 0 0 41 13 50 17 58 4 61 197 -7 41 0 10 41 27 32 40 20 8 42 8 0 -176 0 0 41 7 5 17 58 13 61 200 -7 40 53 24 41 20 48 40 13 21 42 1 17 -175 0 0 41 0 8 17 58 21 61 202 -6 40 46 26 41 13 51 40 6 21 41 54 22 -174 0 0 40 52 56 17 58 30 61 204 -5 40 39 14 41 6 40 39 59 7 41 47 13 -173 0 0 40 45 32 17 58 38 60 206 -4 40 31 49 40 59 16 39 51 40 41 39 51 -172 0 0 40 37 54 17 58 46 60 208 -3 40 24 11 40 51 40 39 44 0 41 32 16 -171 0 0 40 30 4 17 58 55 60 210 -3 40 16 19 40 43 50 39 36 7 41 24 28 -170 0 0 40 22 0 17 59 3 60 212 -2 40 8 15 40 35 47 39 28 0 41 16 28 -169 0 0 40 13 43 17 59 11 59 214 -1 39 59 58 40 27 31 39 19 41 41 8 14 -168 0 0 40 5 14 17 59 20 59 216 0 39 51 28 40 19 2 39 11 9 40 59 47 Uncertainty in time = +/- 8 secs Prediction of 2012 Sep 25.0 Data for the target star ------------------------ * name: TYC 0825-00664-1 * constellation : Cancer * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 09 12 10.3813 DE: +13 19 02.969 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .024, .024 ) * V mag [mag]: 10.7 * B mag [mag]: 12.4 * Apparent position with proper motion RA(deg): 138.2234845762 DE(deg): 13.2621322090 * Equation of equinoxes (radians) : 0.000057397824231 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1211) Bressole approx. diameter [km]: 44 approx. diameter ["]: .020 distance from Earth [AU]: 2.96700 * orbital information: orbit source: Preston date of fit: 2012 Jul 10 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 1036 number of rejected observations: 44 time covered by the observations: 1931 Dec 02 - 2012 Feb 12 1 sigma uncertainty ellipse (major, minor, PA): 0.028, 0.017, 96° remarks: * orbital elements for (1211) Bressole : Mean anomaly = 122.20211639 deg Arg. of pericenter = 212.46877330 deg Long. of node = 129.77560683 deg Inclination = 12.76050892 deg Eccentricity = 0.16075987 Semimajor axis = 2.92764989 AU Perihelion dist = 2.45700127 AU Mag: H = 10.91, G = 0.15 Epoch of elements : MJD 56245.74800000 TDT (2012 Nov 14.748) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 14 1211 Bressole 17h 57.3m UT 10.7 9 12 10.381 13 19 2.97TYC 0825-00664-1 12.4 16.4 44 4.2 2.967 1.194 -1.57 174.4777 13.318 -93.19 -18.46 17.9553 0.03754 0.47399 5.88133 -0.53196 -0.00570 0.00180 2000 121.071169201211 9.00000212.468773129.775607 12.7605090.16075987 2.9276499 2.457001310.6 5.00.15 RATE 1.9675480 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.037 0.029 93 2.47 0.029 0 0 3-1 056195.0020121114_0664-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Sep 25, 20:09 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org