IOTA/IOTA-ES occultation update for (868) Lova / TYC 1235-00264-1 event on 2009 Feb 04, 21:10 UT Visible from Summary ------- On 2009 Feb 04 UT, the 53 km diameter asteroid (868) Lova will occult a 10.3 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 4.4 mag to 14.7 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: 67 * date and approx. time of event: 2009 Feb 04, 21:10 - 2009 Feb 04, 21:17 UT * magnitude of target star: 10.3 * magnitude drop [mag]: 4.4 * estimated maximum duration [s]: 3.6 * Moon: 71 % sunlit, 18° distance * Sun: 99° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 62 * 1 sigma uncertainty interval [path widths]: +/- 0.88 * 1 sigma uncertainty interval [seconds]: +/- 3.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .038 +/- .032) * 1 sigma uncertainty ellipse (major, minor, PA): ( .038", .032", 83° ) * approx speed of asteroid's shadow [km/s]: 14.4754 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1235-00264-1 by 868 Lova on 2009 Feb 4 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 - 58 0 0 41 54 1 21 10 38 58 142 -1 41 33 11 42 14 55 40 56 46 42 51 58 - 57 0 0 42 26 51 21 10 45 59 144 -2 42 6 4 42 47 44 41 29 43 43 24 42 - 56 0 0 42 59 15 21 10 53 58 146 -2 42 38 31 43 20 5 42 2 14 43 56 59 - 55 0 0 43 31 12 21 11 0 58 149 -3 43 10 31 43 52 0 42 34 18 44 28 49 - 54 0 0 44 2 42 21 11 7 58 151 -4 43 42 2 44 23 26 43 5 55 45 0 10 - 53 0 0 44 33 42 21 11 14 58 153 -5 44 13 6 44 54 24 43 37 3 45 31 2 - 52 0 0 45 4 14 21 11 20 58 155 -6 44 43 41 45 24 52 44 7 44 46 1 25 - 51 0 0 45 34 16 21 11 27 58 157 -7 45 13 47 45 54 51 44 37 55 46 31 18 - 50 0 0 46 3 49 21 11 34 58 159 -8 45 43 23 46 24 20 45 7 37 47 0 41 - 49 0 0 46 32 51 21 11 40 58 161 -8 46 12 29 46 53 19 45 36 50 47 29 33 - 48 0 0 47 1 23 21 11 47 57 163 -9 46 41 5 47 21 47 46 5 32 47 57 55 - 47 0 0 47 29 25 21 11 53 57 165 -10 47 9 10 47 49 45 46 33 44 48 25 45 - 46 0 0 47 56 55 21 11 59 57 167 -11 47 36 44 48 17 11 47 1 25 48 53 4 - 45 0 0 48 23 55 21 12 6 56 169 -12 48 3 48 48 44 7 47 28 36 49 19 52 - 44 0 0 48 50 23 21 12 12 56 171 -12 48 30 20 49 10 31 47 55 15 49 46 9 - 43 0 0 49 16 20 21 12 18 56 173 -13 48 56 22 49 36 24 48 21 24 50 11 54 - 42 0 0 49 41 46 21 12 23 55 175 -14 49 21 52 50 1 45 48 47 2 50 37 8 - 41 0 0 50 6 41 21 12 29 55 177 -14 49 46 51 50 26 35 49 12 8 51 1 50 - 40 0 0 50 31 4 21 12 35 55 178 -15 50 11 19 50 50 54 49 36 44 51 26 1 - 39 0 0 50 54 57 21 12 40 54 180 -16 50 35 16 51 14 42 50 0 49 51 49 41 - 38 0 0 51 18 18 21 12 46 54 182 -17 50 58 42 51 37 59 50 24 23 52 12 49 - 37 0 0 51 41 9 21 12 51 53 183 -17 51 21 37 52 0 45 50 47 26 52 35 27 - 36 0 0 52 3 28 21 12 57 53 185 -18 51 44 1 52 23 0 51 9 58 52 57 33 - 35 0 0 52 25 18 21 13 2 53 187 -18 52 5 55 52 44 45 51 32 0 53 19 10 - 34 0 0 52 46 36 21 13 7 52 188 -19 52 27 19 53 5 59 51 53 32 53 40 15 - 33 0 0 53 7 25 21 13 12 52 190 -20 52 48 12 53 26 43 52 14 33 54 0 51 - 32 0 0 53 27 44 21 13 17 51 191 -20 53 8 36 53 46 57 52 35 5 54 20 57 - 31 0 0 53 47 34 21 13 22 51 193 -21 53 28 30 54 6 42 52 55 7 54 40 33 - 30 0 0 54 6 54 21 13 27 50 194 -22 53 47 54 54 25 57 53 14 39 54 59 40 - 29 0 0 54 25 45 21 13 31 50 196 -22 54 6 50 54 44 43 53 33 43 55 18 18 - 28 0 0 54 44 7 21 13 36 50 197 -23 54 25 17 55 3 1 53 52 18 55 36 28 - 27 0 0 55 2 1 21 13 40 49 198 -23 54 43 15 55 20 50 54 10 24 55 54 9 - 26 0 0 55 19 26 21 13 45 49 200 -24 55 0 45 55 38 11 54 28 2 56 11 22 - 25 0 0 55 36 24 21 13 49 48 201 -24 55 17 47 55 55 4 54 45 12 56 28 7 - 24 0 0 55 52 54 21 13 53 48 202 -25 55 34 22 56 11 30 55 1 54 56 44 25 - 23 0 0 56 8 57 21 13 58 47 204 -25 55 50 30 56 27 29 55 18 9 57 0 15 - 22 0 0 56 24 34 21 14 2 47 205 -26 56 6 10 56 43 1 55 33 57 57 15 39 - 21 0 0 56 39 43 21 14 6 46 206 -26 56 21 24 56 58 6 55 49 19 57 30 37 - 20 0 0 56 54 27 21 14 10 46 208 -27 56 36 12 57 12 46 56 4 14 57 45 9 - 19 0 0 57 8 44 21 14 14 45 209 -27 56 50 34 57 26 59 56 18 43 57 59 15 - 18 0 0 57 22 37 21 14 17 45 210 -28 57 4 30 57 40 47 56 32 46 58 12 56 - 17 0 0 57 36 4 21 14 21 44 211 -28 57 18 1 57 54 10 56 46 24 58 26 12 - 16 0 0 57 49 6 21 14 25 44 212 -29 57 31 7 58 7 8 56 59 37 58 39 3 - 15 0 0 58 1 43 21 14 28 43 214 -29 57 43 48 58 19 42 57 12 25 58 51 29 - 14 0 0 58 13 56 21 14 32 43 215 -30 57 56 5 58 31 51 57 24 48 59 3 32 - 13 0 0 58 25 46 21 14 35 42 216 -30 58 7 58 58 43 37 57 36 48 59 15 11 - 12 0 0 58 37 12 21 14 39 42 217 -31 58 19 28 58 54 59 57 48 23 59 26 27 - 11 0 0 58 48 14 21 14 42 42 218 -31 58 30 33 59 5 58 57 59 35 59 37 20 - 10 0 0 58 58 54 21 14 46 41 219 -31 58 41 16 59 16 34 58 10 24 59 47 50 - 9 0 0 59 9 10 21 14 49 41 220 -32 58 51 36 59 26 48 58 20 50 59 57 57 - 8 0 0 59 19 4 21 14 52 40 222 -32 59 1 34 59 36 39 58 30 53 60 7 42 - 7 0 0 59 28 37 21 14 55 40 223 -33 59 11 9 59 46 8 58 40 33 60 17 6 - 6 0 0 59 37 47 21 14 58 39 224 -33 59 20 22 59 55 15 58 49 52 60 26 7 - 5 0 0 59 46 35 21 15 1 39 225 -33 59 29 14 60 4 0 58 58 48 60 34 48 - 4 0 0 59 55 3 21 15 4 38 226 -34 59 37 44 60 12 25 59 7 23 60 43 7 - 3 0 0 60 3 9 21 15 7 38 227 -34 59 45 52 60 20 28 59 15 37 60 51 5 - 2 0 0 60 10 54 21 15 10 37 228 -35 59 53 40 60 28 10 59 23 29 60 58 43 - 1 0 0 60 18 18 21 15 13 37 229 -35 60 1 7 60 35 32 59 31 0 61 6 1 0 0 0 60 25 22 21 15 16 36 230 -35 60 8 14 60 42 34 59 38 11 61 12 58 1 0 0 60 32 6 21 15 18 36 231 -36 60 15 0 60 49 15 59 45 1 61 19 35 2 0 0 60 38 30 21 15 21 36 232 -36 60 21 26 60 55 37 59 51 31 61 25 53 3 0 0 60 44 34 21 15 24 35 233 -36 60 27 32 61 1 39 59 57 40 61 31 51 4 0 0 60 50 18 21 15 26 35 234 -37 60 33 18 61 7 21 60 3 30 61 37 29 5 0 0 60 55 43 21 15 29 34 235 -37 60 38 44 61 12 44 60 9 0 61 42 49 6 0 0 61 0 48 21 15 31 34 236 -37 60 43 52 61 17 47 60 14 10 61 47 49 7 0 0 61 5 34 21 15 34 33 237 -38 60 48 39 61 22 32 60 19 1 61 52 31 8 0 0 61 10 1 21 15 36 33 238 -38 60 53 8 61 26 58 60 23 32 61 56 54 9 0 0 61 14 10 21 15 39 32 239 -38 60 57 18 61 31 5 60 27 45 62 0 58 10 0 0 61 17 59 21 15 41 32 240 -38 61 1 9 61 34 53 60 31 38 62 4 44 11 0 0 61 21 30 21 15 43 31 241 -39 61 4 41 61 38 23 60 35 12 62 8 12 12 0 0 61 24 43 21 15 46 31 242 -39 61 7 55 61 41 34 60 38 28 62 11 21 13 0 0 61 27 37 21 15 48 31 243 -39 61 10 50 61 44 27 60 41 25 62 14 12 14 0 0 61 30 13 21 15 50 30 244 -40 61 13 27 61 47 2 60 44 3 62 16 46 15 0 0 61 32 30 21 15 52 30 245 -40 61 15 45 61 49 19 60 46 23 62 19 1 16 0 0 61 34 30 21 15 54 29 246 -40 61 17 45 61 51 18 60 48 24 62 20 59 17 0 0 61 36 11 21 15 56 29 247 -40 61 19 27 61 52 58 60 50 7 62 22 39 18 0 0 61 37 35 21 15 59 28 248 -41 61 20 51 61 54 21 60 51 31 62 24 1 19 0 0 61 38 40 21 16 1 28 249 -41 61 21 56 61 55 26 60 52 37 62 25 5 20 0 0 61 39 27 21 16 3 27 250 -41 61 22 44 61 56 14 60 53 25 62 25 52 21 0 0 61 39 57 21 16 5 27 251 -41 61 23 14 61 56 43 60 53 55 62 26 21 22 0 0 61 40 8 21 16 6 26 252 -42 61 23 25 61 56 55 60 54 7 62 26 33 23 0 0 61 40 2 21 16 8 26 253 -42 61 23 19 61 56 48 60 54 0 62 26 27 24 0 0 61 39 38 21 16 10 26 254 -42 61 22 55 61 56 25 60 53 36 62 26 3 25 0 0 61 38 56 21 16 12 25 255 -42 61 22 12 61 55 43 60 52 53 62 25 22 26 0 0 61 37 56 21 16 14 25 256 -43 61 21 12 61 54 44 60 51 52 62 24 24 27 0 0 61 36 39 21 16 16 24 257 -43 61 19 54 61 53 26 60 50 32 62 23 7 28 0 0 61 35 3 21 16 18 24 258 -43 61 18 17 61 51 51 60 48 55 62 21 34 29 0 0 61 33 9 21 16 19 23 259 -43 61 16 23 61 49 58 60 46 59 62 19 42 30 0 0 61 30 57 21 16 21 23 260 -43 61 14 10 61 47 48 60 44 45 62 17 33 31 0 0 61 28 28 21 16 23 22 261 -44 61 11 40 61 45 19 60 42 13 62 15 6 32 0 0 61 25 40 21 16 24 22 262 -44 61 8 51 61 42 32 60 39 22 62 12 21 33 0 0 61 22 34 21 16 26 21 263 -44 61 5 43 61 39 27 60 36 12 62 9 18 34 0 0 61 19 9 21 16 28 21 263 -44 61 2 17 61 36 4 60 32 44 62 5 57 35 0 0 61 15 26 21 16 29 20 264 -44 60 58 33 61 32 22 60 28 57 62 2 18 36 0 0 61 11 25 21 16 31 20 265 -44 60 54 30 61 28 22 60 24 52 61 58 21 37 0 0 61 7 5 21 16 32 19 266 -45 60 50 8 61 24 4 60 20 27 61 54 6 38 0 0 61 2 26 21 16 34 19 267 -45 60 45 28 61 19 27 60 15 44 61 49 32 39 0 0 60 57 28 21 16 35 19 268 -45 60 40 28 61 14 31 60 10 41 61 44 39 40 0 0 60 52 12 21 16 36 18 269 -45 60 35 10 61 9 17 60 5 19 61 39 28 41 0 0 60 46 36 21 16 38 18 270 -45 60 29 32 61 3 43 59 59 38 61 33 58 42 0 0 60 40 41 21 16 39 17 271 -45 60 23 35 60 57 50 59 53 37 61 28 9 43 0 0 60 34 26 21 16 40 17 272 -45 60 17 18 60 51 38 59 47 16 61 22 1 44 0 0 60 27 52 21 16 42 16 273 -46 60 10 42 60 45 6 59 40 35 61 15 33 45 0 0 60 20 58 21 16 43 16 273 -46 60 3 45 60 38 15 59 33 35 61 8 46 46 0 0 60 13 44 21 16 44 15 274 -46 59 56 29 60 31 3 59 26 14 61 1 40 47 0 0 60 6 10 21 16 45 15 275 -46 59 48 52 60 23 32 59 18 32 60 54 13 48 0 0 59 58 16 21 16 47 14 276 -46 59 40 55 60 15 40 59 10 30 60 46 26 49 0 0 59 50 1 21 16 48 13 277 -46 59 32 37 60 7 28 59 2 8 60 38 19 50 0 0 59 41 25 21 16 49 13 278 -46 59 23 58 59 58 55 58 53 24 60 29 52 51 0 0 59 32 28 21 16 50 12 279 -46 59 14 58 59 50 1 58 44 19 60 21 3 52 0 0 59 23 10 21 16 51 12 280 -46 59 5 37 59 40 47 58 34 52 60 11 54 53 0 0 59 13 31 21 16 52 11 281 -46 58 55 55 59 31 10 58 25 4 60 2 24 54 0 0 59 3 30 21 16 53 11 281 -46 58 45 50 59 21 12 58 14 54 59 52 32 55 0 0 58 53 7 21 16 54 10 282 -46 58 35 24 59 10 53 58 4 22 59 42 18 56 0 0 58 42 21 21 16 55 10 283 -46 58 24 35 59 0 11 57 53 27 59 31 43 57 0 0 58 31 14 21 16 55 9 284 -46 58 13 24 58 49 7 57 42 10 59 20 45 58 0 0 58 19 43 21 16 56 9 285 -46 58 1 50 58 37 40 57 30 29 59 9 25 59 0 0 58 7 50 21 16 57 8 286 -46 57 49 53 58 25 51 57 18 26 58 57 42 60 0 0 57 55 34 21 16 58 8 287 -46 57 37 33 58 13 38 57 5 59 58 45 36 61 0 0 57 42 54 21 16 58 7 287 -46 57 24 49 58 1 2 56 53 9 58 33 6 62 0 0 57 29 50 21 16 59 6 288 -46 57 11 41 57 48 2 56 39 55 58 20 14 63 0 0 57 16 22 21 17 0 6 289 -46 56 58 10 57 34 38 56 26 16 58 6 57 64 0 0 57 2 30 21 17 0 5 290 -46 56 44 14 57 20 50 56 12 13 57 53 16 65 0 0 56 48 14 21 17 1 5 291 -46 56 29 53 57 6 38 55 57 46 57 39 11 66 0 0 56 33 32 21 17 1 4 292 -46 56 15 8 56 52 1 55 42 53 57 24 41 67 0 0 56 18 26 21 17 1 3 292 -46 55 59 57 56 36 59 55 27 36 57 9 47 68 0 0 56 2 54 21 17 2 3 293 -46 55 44 21 56 21 31 55 11 52 56 54 27 69 0 0 55 46 57 21 17 2 2 294 -46 55 28 20 56 5 38 54 55 44 56 38 41 70 0 0 55 30 34 21 17 2 2 295 -46 55 11 53 55 49 19 54 39 9 56 22 30 71 0 0 55 13 45 21 17 2 1 296 -46 54 54 59 55 32 34 54 22 8 56 5 53 72 0 0 54 56 29 21 17 2 0 297 -46 54 37 39 55 15 23 .. .. .. 55 48 49 Uncertainty in time = +/- 4 secs [Prediction of 2008 Nov 6.0] Data for the target star ------------------------ * name: TYC 1235-00264-1 * constellation : Taurus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 03 36 32.3817 DE: +15 09 49.140 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .029, .029 ) * V mag [mag]: 10.3 * B mag [mag]: 10.9 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (868) Lova approx. diameter [km]: 53 approx. diameter ["]: .037 distance from Earth [AU]: 1.99400 * orbital information: orbit source: Preston date of fit: 2008 Nov 05 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 830 number of rejected observations: 99 time covered by the observations: 1919 Dec 11 - 2008 Sep 18 1 sigma uncertainty ellipse (major, minor, PA): 0.025, 0.013, 73° remarks: * orbital elements for (868) Lova : Mean anomaly = 27.25669441 deg Arg. of pericenter = 287.36987826 deg Long. of node = 115.83506204 deg Inclination = 5.83517412 deg Eccentricity = 0.14743995 Semimajor axis = 2.70398523 AU Perihelion dist = 2.30530979 AU Mag: H = 10.18, G = 0.15 Epoch of elements : MJD 54866.88300000 TDT (2009 Feb 04.883) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Feb 4 868 Lova 21h 10.8m UT 10.3 3 36 32.382 15 9 49.14TYC 1235-00264-1 10.9 14.7 53 3.6 1.994 2.231 15.97 -38.7204 15.160 -134.19 -15.98 21.1796 -0.23108 0.46535 7.32355 3.62214 0.00549 0.00138 2000 25.7309722009 129.00000287.369878115.835062 5.8351740.14743995 2.7039852 2.305309810.2 5.00.15 RATE 2.2166530 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.038 0.032 83 1.88 0.032 0 54776.5020090204_0264-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 06, 05:05 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org