IOTA/IOTA-ES occultation update for (612) Veronika / 2UCAC 32300426 event on 2012 Nov 19, 19:21 UT Visible from Japan, China Summary ------- On 2012 Nov 19 UT, the 44 km diameter asteroid (612) Veronika will occult a 11.8 mag star in the constellation Pisces 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 3.4 mag to 15.2 mag (the magnitude of the asteroid) for at most 3.6 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: 55 * date and approx. time of event: 2012 Nov 19, 10:17 - 2012 Nov 19, 10:31 UT * geocentric midpoint of event [JD]: 2456250.93285833 * magnitude of target star: 11.8 * magnitude drop [mag]: 3.4 * estimated maximum duration [s]: 3.6 * Moon: 38 % sunlit, 36° distance * Sun: 112° distance * rough path description: Japan, China The occultation path -------------------- * approximate projected width [km]: 49 * 1 sigma uncertainty interval [path widths]: +/- 1.15 * 1 sigma uncertainty interval [seconds]: +/- 4.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .039 +/- .035) * 1 sigma uncertainty ellipse (major, minor, PA): ( .039", .035", 87° ) * approx speed of asteroid's shadow [km/s]: 12.4713 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of 2UCAC 32300426 by 612 Veronika on 2012 Nov 19 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 91 0 0 46 0 16 10 17 0 31 126 0 45 46 23 46 14 9 45 14 35 46 46 14 92 0 0 45 45 22 10 17 4 32 126 -1 45 31 28 45 59 18 44 59 35 46 31 27 93 0 0 45 30 6 10 17 8 33 127 -1 45 16 9 45 44 3 44 44 12 46 16 17 94 0 0 45 14 26 10 17 12 33 128 -2 45 0 27 45 28 26 44 28 26 46 0 44 95 0 0 44 58 22 10 17 16 34 129 -2 44 44 22 45 12 24 44 12 15 45 44 47 96 0 0 44 41 55 10 17 21 35 130 -3 44 27 53 44 56 0 43 55 42 45 28 28 97 0 0 44 25 5 10 17 25 36 131 -3 44 11 1 44 39 11 43 38 45 45 11 44 98 0 0 44 7 51 10 17 30 36 132 -4 43 53 44 44 21 59 43 21 24 44 54 37 99 0 0 43 50 13 10 17 34 37 133 -4 43 36 5 44 4 24 43 3 39 44 37 7 100 0 0 43 32 12 10 17 39 38 134 -5 43 18 1 43 46 25 42 45 31 44 19 12 101 0 0 43 13 47 10 17 44 39 135 -6 42 59 34 43 28 2 42 26 59 44 0 54 102 0 0 42 54 58 10 17 49 39 135 -6 42 40 43 43 9 15 42 8 3 43 42 12 103 0 0 42 35 45 10 17 54 40 136 -7 42 21 28 42 50 4 41 48 43 43 23 7 104 0 0 42 16 9 10 17 59 41 137 -7 42 1 50 42 30 30 41 29 0 43 3 38 105 0 0 41 56 9 10 18 5 42 138 -8 41 41 47 42 10 32 41 8 53 42 43 44 106 0 0 41 35 45 10 18 10 42 139 -9 41 21 21 41 50 10 40 48 22 42 23 28 107 0 0 41 14 57 10 18 16 43 140 -9 41 0 32 41 29 25 40 27 28 42 2 47 108 0 0 40 53 46 10 18 22 44 141 -10 40 39 19 41 8 16 40 6 10 41 41 43 109 0 0 40 32 12 10 18 28 45 143 -11 40 17 42 40 46 44 39 44 29 41 20 16 110 0 0 40 10 14 10 18 34 45 144 -11 39 55 42 40 24 48 39 22 24 40 58 25 111 0 0 39 47 53 10 18 40 46 145 -12 39 33 19 40 2 29 38 59 57 40 36 10 112 0 0 39 25 9 10 18 46 47 146 -12 39 10 33 39 39 47 38 37 6 40 13 33 113 0 0 39 2 2 10 18 53 48 147 -13 38 47 25 39 16 42 38 13 53 39 50 33 114 0 0 38 38 33 10 18 59 48 148 -14 38 23 53 38 53 15 37 50 17 39 27 10 115 0 0 38 14 41 10 19 6 49 149 -14 38 0 0 38 29 25 37 26 19 39 3 24 116 0 0 37 50 27 10 19 13 50 151 -15 37 35 44 38 5 13 37 1 59 38 39 16 117 0 0 37 25 52 10 19 20 51 152 -16 37 11 7 37 40 39 36 37 18 38 14 47 118 0 0 37 0 54 10 19 27 51 153 -17 36 46 8 37 15 43 36 12 15 37 49 55 119 0 0 36 35 36 10 19 34 52 154 -17 36 20 48 36 50 27 35 46 51 37 24 42 120 0 0 36 9 57 10 19 41 53 156 -18 35 55 7 36 24 49 35 21 7 36 59 9 121 0 0 35 43 57 10 19 49 54 157 -19 35 29 6 35 58 51 34 55 2 36 33 14 122 0 0 35 17 38 10 19 56 54 159 -20 35 2 45 35 32 33 34 28 38 36 7 0 123 0 0 34 50 59 10 20 4 55 160 -20 34 36 4 35 5 56 34 1 54 35 40 26 124 0 0 34 24 1 10 20 12 56 162 -21 34 9 5 34 38 59 33 34 51 35 13 32 125 0 0 33 56 45 10 20 20 57 163 -22 33 41 47 34 11 44 33 7 31 34 46 20 126 0 0 33 29 10 10 20 28 57 165 -23 33 14 12 33 44 11 32 39 53 34 18 50 127 0 0 33 1 19 10 20 36 58 167 -23 32 46 19 33 16 20 32 11 57 33 51 2 128 0 0 32 33 10 10 20 44 58 168 -24 32 18 10 32 48 13 31 43 45 33 22 58 129 0 0 32 4 46 10 20 52 59 170 -25 31 49 44 32 19 50 31 15 18 32 54 37 130 0 0 31 36 6 10 21 1 60 172 -26 31 21 4 31 51 11 30 46 35 32 26 0 131 0 0 31 7 12 10 21 10 60 174 -27 30 52 9 31 22 18 30 17 38 31 57 8 132 0 0 30 38 4 10 21 18 61 176 -27 30 23 0 30 53 10 29 48 28 31 28 2 133 0 0 30 8 42 10 21 27 61 178 -28 29 53 38 30 23 49 29 19 4 30 58 43 134 0 0 29 39 9 10 21 36 62 180 -29 29 24 3 29 54 16 28 49 29 30 29 11 135 0 0 29 9 23 10 21 45 62 183 -30 28 54 17 29 24 31 28 19 42 29 59 27 136 0 0 28 39 27 10 21 54 63 185 -31 28 24 21 28 54 36 27 49 45 29 29 33 137 0 0 28 9 21 10 22 3 63 187 -32 27 54 15 28 24 30 27 19 38 28 59 28 138 0 0 27 39 7 10 22 12 64 190 -32 27 24 0 27 54 15 26 49 23 28 29 13 139 0 0 27 8 44 10 22 22 64 192 -33 26 53 37 27 23 53 26 19 0 27 58 51 140 0 0 26 38 14 10 22 31 64 195 -34 26 23 7 26 53 23 25 48 30 27 28 21 141 0 0 26 7 38 10 22 40 64 198 -35 25 52 32 26 22 47 25 17 54 26 57 44 142 0 0 25 36 57 10 22 50 65 200 -36 25 21 51 25 52 5 24 47 14 26 27 3 143 0 0 25 6 12 10 22 59 65 203 -37 24 51 6 25 21 20 24 16 30 25 56 16 144 0 0 24 35 23 10 23 9 65 206 -38 24 20 17 24 50 31 23 45 42 25 25 26 145 0 0 24 4 32 10 23 19 65 208 -39 23 49 27 24 19 39 23 14 53 24 54 34 146 0 0 23 33 40 10 23 28 65 211 -39 23 18 36 23 48 47 22 44 4 24 23 40 147 0 0 23 2 48 10 23 38 65 214 -40 22 47 44 23 17 54 22 13 14 23 52 45 148 0 0 22 31 57 10 23 48 65 216 -41 22 16 54 22 47 2 21 42 25 23 21 51 149 0 0 22 1 8 10 23 57 64 219 -42 21 46 6 22 16 12 21 11 39 22 50 59 150 0 0 21 30 21 10 24 7 64 222 -43 21 15 20 21 45 24 20 40 55 22 20 9 151 0 0 20 59 39 10 24 17 64 224 -44 20 44 39 21 14 41 20 10 16 21 49 23 152 0 0 20 29 1 10 24 27 64 227 -45 20 14 2 20 44 2 19 39 43 21 18 42 153 0 0 19 58 30 10 24 36 63 229 -46 19 43 32 20 13 29 19 9 15 20 48 6 154 0 0 19 28 5 10 24 46 63 231 -47 19 13 9 19 43 3 18 38 55 20 17 38 155 0 0 18 57 48 10 24 56 62 234 -47 18 42 53 19 12 45 18 8 43 19 47 16 156 0 0 18 27 41 10 25 5 62 236 -48 18 12 47 18 42 36 17 38 40 19 17 4 157 0 0 17 57 43 10 25 15 61 238 -49 17 42 51 18 12 37 17 8 47 18 47 1 158 0 0 17 27 56 10 25 24 61 240 -50 17 13 6 17 42 49 16 39 5 18 17 9 159 0 0 16 58 21 10 25 34 60 242 -51 16 43 32 17 13 12 16 9 36 17 47 29 160 0 0 16 28 59 10 25 43 59 244 -52 16 14 12 16 43 48 15 40 19 17 18 1 161 0 0 15 59 51 10 25 53 59 245 -53 15 45 5 16 14 38 15 11 16 16 48 46 162 0 0 15 30 57 10 26 2 58 247 -54 15 16 13 15 45 42 14 42 28 16 19 46 163 0 0 15 2 18 10 26 11 57 249 -55 14 47 36 15 17 2 14 13 56 15 51 2 164 0 0 14 33 56 10 26 20 56 250 -55 14 19 16 14 48 37 13 45 40 15 22 33 165 0 0 14 5 50 10 26 29 56 252 -56 13 51 13 14 20 30 13 17 41 14 54 21 166 0 0 13 38 3 10 26 38 55 253 -57 13 23 27 13 52 41 12 50 0 14 26 27 167 0 0 13 10 34 10 26 47 54 254 -58 12 56 0 13 25 10 12 22 38 13 58 52 168 0 0 12 43 25 10 26 56 53 255 -59 12 28 53 12 57 59 11 55 35 13 31 36 169 0 0 12 16 36 10 27 5 52 256 -60 12 2 6 12 31 7 11 28 53 13 4 39 170 0 0 11 50 7 10 27 13 51 257 -61 11 35 40 12 4 37 11 2 31 12 38 4 171 0 0 11 24 0 10 27 22 50 258 -61 11 9 35 11 38 28 10 36 31 12 11 50 172 0 0 10 58 15 10 27 30 50 259 -62 10 43 52 11 12 41 10 10 53 11 45 58 173 0 0 10 32 53 10 27 38 49 260 -63 10 18 32 10 47 16 9 45 38 11 20 29 174 0 0 10 7 54 10 27 46 48 261 -64 9 53 35 10 22 15 9 20 46 10 55 22 175 0 0 9 43 19 10 27 54 47 262 -64 9 29 2 9 57 38 8 56 18 10 30 40 176 0 0 9 19 8 10 28 2 46 263 -65 9 4 53 9 33 25 8 32 14 10 6 22 177 0 0 8 55 22 10 28 10 45 263 -66 8 41 10 9 9 37 8 8 35 9 42 29 178 0 0 8 32 2 10 28 17 44 264 -67 8 17 51 8 46 14 7 45 22 9 19 1 179 0 0 8 9 7 10 28 24 43 264 -67 7 54 59 8 23 17 7 22 34 8 55 59 180 0 0 7 46 39 10 28 32 42 265 -68 7 32 32 8 0 47 7 0 12 8 33 24 -179 0 0 7 24 37 10 28 39 41 266 -68 7 10 33 7 38 43 6 38 18 8 11 15 -178 0 0 7 3 2 10 28 46 40 266 -69 6 49 0 7 17 6 6 16 50 7 49 33 -177 0 0 6 41 54 10 28 52 39 267 -70 6 27 54 6 55 56 5 55 49 7 28 19 -176 0 0 6 21 15 10 28 59 38 267 -70 6 7 17 6 35 14 5 35 16 7 7 32 -175 0 0 6 1 3 10 29 5 37 267 -71 5 47 7 6 15 0 5 15 11 6 47 13 -174 0 0 5 41 19 10 29 12 36 268 -71 5 27 25 5 55 15 4 55 34 6 27 23 -173 0 0 5 22 4 10 29 18 35 268 -72 5 8 13 5 35 58 4 36 26 6 8 2 -172 0 0 5 3 18 10 29 24 34 268 -72 4 49 28 5 17 10 4 17 46 5 49 9 -171 0 0 4 45 1 10 29 29 33 269 -72 4 31 13 4 58 51 3 59 35 5 30 46 -170 0 0 4 27 14 10 29 35 32 269 -72 4 13 28 4 41 1 3 41 54 5 12 52 -169 0 0 4 9 55 10 29 40 31 269 -73 3 56 11 4 23 41 3 24 41 4 55 27 -168 0 0 3 53 7 10 29 46 30 269 -73 3 39 24 4 6 51 3 7 59 4 38 32 -167 0 0 3 36 48 10 29 51 29 270 -73 3 23 7 3 50 30 2 51 46 4 22 8 -166 0 0 3 20 59 10 29 56 28 270 -73 3 7 20 3 34 40 2 36 3 4 6 13 -165 0 0 3 5 40 10 30 0 27 270 -73 2 52 3 3 19 19 2 20 50 3 50 49 -164 0 0 2 50 52 10 30 5 26 270 -73 2 37 16 3 4 29 2 6 6 3 35 55 -163 0 0 2 36 34 10 30 9 25 270 -73 2 23 0 2 50 9 1 51 53 3 21 31 -162 0 0 2 22 46 10 30 14 24 271 -73 2 9 13 2 36 20 1 38 11 3 7 38 -161 0 0 2 9 29 10 30 18 23 271 -73 1 55 58 2 23 1 1 24 58 2 54 16 -160 0 0 1 56 42 10 30 21 22 271 -72 1 43 12 2 10 13 1 12 17 2 41 24 -159 0 0 1 44 26 10 30 25 21 271 -72 1 30 58 1 57 55 1 0 5 2 29 3 -158 0 0 1 32 40 10 30 29 20 271 -72 1 19 14 1 46 8 0 48 24 2 17 13 -157 0 0 1 21 26 10 30 32 19 271 -71 1 8 0 1 34 52 0 37 14 2 5 54 -156 0 0 1 10 42 10 30 35 18 271 -71 0 57 18 1 24 7 0 26 34 1 55 6 -155 0 0 1 0 28 10 30 38 17 271 -70 0 47 6 1 13 53 0 16 25 1 44 48 -154 0 0 0 50 46 10 30 41 16 271 -70 0 37 24 1 4 9 0 6 46 1 35 2 -153 0 0 0 41 34 10 30 43 15 271 -69 0 28 14 0 54 56 - 0 2 22 1 25 47 -152 0 0 0 32 54 10 30 46 14 271 -69 0 19 34 0 46 15 - 0 10 59 1 17 3 -151 0 0 0 24 44 10 30 48 13 271 -68 0 11 25 0 38 4 - 0 19 6 1 8 49 -150 0 0 0 17 4 10 30 50 12 271 -68 0 3 47 0 30 23 - 0 26 42 1 1 7 -149 0 0 0 9 56 10 30 52 10 271 -67 - 0 3 21 0 23 14 - 0 33 48 0 53 56 -148 0 0 0 3 18 10 30 54 9 271 -66 - 0 9 58 0 16 36 - 0 40 23 0 47 15 -147 0 0 - 0 2 49 10 30 55 8 272 -66 - 0 16 4 0 10 28 - 0 46 27 0 41 6 -146 0 0 - 0 8 25 10 30 57 7 272 -65 - 0 21 39 0 4 51 - 0 52 1 0 35 27 -145 0 0 - 0 13 30 10 30 58 6 272 -64 - 0 26 44 - 0 0 15 - 0 57 4 0 30 19 -144 0 0 - 0 18 5 10 30 59 5 272 -64 - 0 31 18 - 0 4 51 - 1 1 37 0 25 42 -143 0 0 - 0 22 9 10 31 0 4 272 -63 - 0 35 22 - 0 8 56 - 1 5 39 0 21 36 -142 0 0 - 0 25 43 10 31 1 3 272 -62 - 0 38 55 - 0 12 30 - 1 9 12 0 18 1 -141 0 0 - 0 28 46 10 31 1 2 272 -62 - 0 41 58 - 0 15 33 .. .. .. 0 14 56 -140 0 0 - 0 31 19 10 31 1 1 271 -61 - 0 44 30 - 0 18 7 .. .. .. 0 12 22 -139 0 0 - 0 33 22 10 31 2 0 271 -60 - 0 46 32 - 0 20 9 .. .. .. 0 10 19 Uncertainty in time = +/- 4 secs Prediction of 2012 Nov 16.0 Data for the target star ------------------------ * name: 2UCAC 32300426 * constellation : Pisces * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 23 11 36.2730 DE: +01 24 33.181 * position source: mpos:UCAC4 pm:UCAC4 * standard error: RA,DE ["]: ( .028, .030 ) * V mag [mag]: 11.8 * B mag [mag]: 0.0 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (612) Veronika approx. diameter [km]: 44 approx. diameter ["]: .031 distance from Earth [AU]: 1.95500 * orbital information: orbit source: Preston date of fit: 2012 Oct 07 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 862 number of rejected observations: 13 time covered by the observations: 1906 Oct 08 - 2012 Oct 01 1 sigma uncertainty ellipse (major, minor, PA): 0.027, 0.018, 84° remarks: * orbital elements for (612) Veronika : Mean anomaly = 27.62026158 deg Arg. of pericenter = 120.29692119 deg Long. of node = 203.61215124 deg Inclination = 20.83448788 deg Eccentricity = 0.25794473 Semimajor axis = 3.15545255 AU Perihelion dist = 2.34152021 AU Mag: H = 10.65, G = 0.15 Epoch of elements : MJD 56250.80600000 TDT (2012 Nov 19.806) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 19 612 Veronika 10h 23.3m UT 11.8 23 11 36.273 1 24 33.182UCAC 32300426 0.0 15.2 44 3.6 1.955 1.904 -13.70 133.2180 1.414 20.55 -19.60 10.3886 0.18438 0.38190 6.34488 -3.04828 0.00505 0.00189 2000 27.47853720121119.00000120.296921203.612151 20.8344880.25794473 3.1554526 2.341520210.7 5.00.15 RATE 1.7583750 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.039 0.035 87 2.15 0.036 0 0 0 1 056247.0020121119_300426 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 07, 19:58 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org