IOTA/IOTA-ES occultation update for (329) Svea / TYC 0084-01078-1 event on 2008 Feb 02, 20:57 UT Visible from Europe, Russia Summary ------- On 2008 Feb 02 UT, the 78 km diameter asteroid (329) Svea will occult a 10.0 mag star in the constellation Orion for observers along a path across Europe, Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.2 mag to 14.1 mag (the magnitude of the asteroid) for at most 9.6 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 93 * date and approx. time of event: 2008 Feb 02, 20:45 - 2008 Feb 02, 21:10 UT * magnitude of target star: 10.0 * magnitude drop [mag]: 4.2 * estimated maximum duration [s]: 9.6 * Moon: 18 % sunlit, 152° distance * Sun: 115° distance * rough path description: Europe, Russia The occultation path -------------------- * approximate projected width [km]: 79 * 1 sigma uncertainty interval [path widths]: +/- 0.47 * 1 sigma uncertainty interval [seconds]: +/- 4.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .026 +/- .023) * 1 sigma uncertainty ellipse (major, minor, PA): ( .026", .023", 89° ) * approx speed of asteroid's shadow [km/s]: 8.1218 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0084-01078-1 by 329 Svea on 2008 Feb 02 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 ' " Longitude Longitude Longitude Longitude ... .. .. -83 0 0 .. .. .. .. .. .. - 82 18 57 ... .. .. - 75 20 38 ... .. .. - 72 11 3 -82 0 0 20 45 1 3 60 21 - 67 21 18 - 77 50 15 - 63 17 32 - 84 35 10 - 62 16 50 -81 0 0 20 45 3 4 50 20 - 58 48 16 - 66 1 33 - 55 43 37 - 69 52 36 Latitude Latitude Latitude Latitude - 62 0 0 -80 57 51 20 45 3 4 50 20 -81 25 21 -80 30 24 -81 51 15 -80 4 38 - 61 0 0 -80 49 57 20 45 3 5 49 20 -81 17 50 -80 22 7 -81 44 6 -79 56 0 - 60 0 0 -80 41 40 20 45 3 5 48 20 -81 9 57 -80 13 26 -81 36 36 -79 46 56 - 59 0 0 -80 32 58 20 45 4 5 47 20 -81 1 40 -80 4 18 -81 28 42 -79 37 25 - 58 0 0 -80 23 49 20 45 4 5 46 20 -80 52 58 -79 54 44 -81 20 26 -79 27 26 - 57 0 0 -80 14 13 20 45 4 6 45 20 -80 43 50 -79 44 40 -81 11 44 -79 16 57 - 56 0 0 -80 4 8 20 45 4 6 44 20 -80 34 14 -79 34 6 -81 2 35 -79 5 55 - 55 0 0 -79 53 31 20 45 5 6 43 19 -80 24 7 -79 22 59 -80 52 57 -78 54 20 - 54 0 0 -79 42 21 20 45 5 6 42 19 -80 13 30 -79 11 17 -80 42 50 -78 42 8 - 53 0 0 -79 30 36 20 45 6 7 41 19 -80 2 18 -78 58 59 -80 32 10 -78 29 19 - 52 0 0 -79 18 14 20 45 6 7 40 19 -79 50 31 -78 46 1 -80 20 57 -78 15 48 - 51 0 0 -79 5 11 20 45 7 7 39 19 -79 38 5 -78 32 21 -80 9 6 -78 1 34 - 50 0 0 -78 51 25 20 45 7 7 38 19 -79 24 59 -78 17 57 -79 56 36 -77 46 33 - 49 0 0 -78 36 53 20 45 8 8 37 19 -79 11 8 -78 2 44 -79 43 25 -77 30 43 - 48 0 0 -78 21 33 20 45 8 8 36 18 -78 56 30 -77 46 41 -79 29 28 -77 13 59 - 47 0 0 -78 5 19 20 45 9 8 35 18 -78 41 2 -77 29 42 -79 14 43 -76 56 18 - 46 0 0 -77 48 8 20 45 10 9 34 18 -78 24 40 -77 11 44 -78 59 6 -76 37 36 - 45 0 0 -77 29 56 20 45 10 9 33 18 -78 7 18 -76 52 42 -78 42 32 -76 17 47 - 44 0 0 -77 10 38 20 45 11 10 32 18 -77 48 53 -76 32 30 -78 24 58 -75 56 46 - 43 0 0 -76 50 8 20 45 12 10 31 17 -77 29 20 -76 11 5 -78 6 18 -75 34 29 - 42 0 0 -76 28 21 20 45 13 10 30 17 -77 8 32 -75 48 19 -77 46 26 -75 10 47 - 41 0 0 -76 5 10 20 45 15 11 29 17 -76 46 23 -75 24 5 -77 25 18 -74 45 35 - 40 0 0 -75 40 26 20 45 16 11 28 17 -76 22 47 -74 58 15 -77 2 44 -74 18 45 - 39 0 0 -75 14 3 20 45 17 12 27 16 -75 57 34 -74 30 43 -76 38 39 -73 50 7 - 38 0 0 -74 45 51 20 45 19 12 26 16 -75 30 37 -74 1 17 -76 12 53 -73 19 32 - 37 0 0 -74 15 40 20 45 21 13 25 16 -75 1 45 -73 29 47 -75 45 16 -72 46 49 - 36 0 0 -73 43 17 20 45 22 14 24 16 -74 30 47 -72 56 1 -75 15 38 -72 11 46 - 35 0 0 -73 8 31 20 45 25 14 23 15 -73 57 30 -72 19 46 -74 43 46 -71 34 9 - 34 0 0 -72 31 6 20 45 27 15 23 15 -73 21 40 -71 40 48 -74 9 27 -70 53 43 - 33 0 0 -71 50 47 20 45 30 16 22 14 -72 43 1 -70 58 48 -73 32 24 -70 10 11 - 32 0 0 -71 7 13 20 45 33 16 21 14 -72 1 16 -70 13 29 -72 52 21 -69 23 13 - 31 0 0 -70 20 5 20 45 36 17 20 13 -71 16 2 -69 24 28 -72 8 57 -68 32 27 - 30 0 0 -69 28 58 20 45 40 18 19 13 -70 26 57 -68 31 21 -71 21 48 -67 37 29 - 29 0 0 -68 33 26 20 45 45 19 18 12 -69 33 34 -67 33 41 -70 30 29 -66 37 50 - 28 0 0 -67 32 57 20 45 50 20 17 12 -68 35 24 -66 30 56 -69 34 31 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50 6 52 1 -9 -38 43 0 -35 14 4 -40 23 27 -33 37 50 - 13 0 0 -32 59 9 20 50 52 56 359 -12 -34 46 1 -31 13 56 -36 28 6 -29 36 25 - 12 0 0 -28 46 34 20 51 43 60 356 -14 -30 34 9 -27 0 46 -32 17 1 -25 22 48 - 11 0 0 -24 23 13 20 52 38 64 353 -18 -26 10 26 -22 37 52 -27 53 3 -21 0 26 - 10 0 0 -19 53 11 20 53 37 68 348 -21 -21 38 54 -18 9 24 -23 20 12 -16 33 29 - 9 0 0 -15 21 10 20 54 38 72 341 -24 -17 4 21 -13 39 58 -18 43 16 -12 6 30 - 8 0 0 -10 51 53 20 55 40 76 330 -27 -12 31 37 - 9 14 5 -14 7 15 - 7 43 48 - 7 0 0 - 6 29 30 20 56 41 79 314 -30 - 8 5 8 - 4 55 42 - 9 36 50 - 3 29 7 - 6 0 0 - 2 17 17 20 57 41 80 291 -32 - 3 48 27 - 0 47 51 - 5 15 50 0 34 46 - 5 0 0 1 42 30 20 58 38 79 269 -35 0 15 56 3 7 29 - 1 6 58 4 26 0 - 4 0 0 5 28 34 20 59 32 77 252 -37 4 6 34 6 49 9 2 48 6 8 3 41 - 3 0 0 9 0 28 21 0 22 75 241 -39 7 42 50 10 16 50 6 28 37 11 27 31 - 2 0 0 12 18 17 21 1 8 72 234 -41 11 4 46 13 30 41 9 54 35 14 37 45 - 1 0 0 15 22 33 21 1 51 69 229 -43 14 12 51 16 31 15 13 6 22 17 34 58 0 0 0 18 13 57 21 2 30 67 226 -44 17 7 47 19 19 15 16 4 44 20 19 52 1 0 0 20 53 22 21 3 6 64 224 -46 19 50 25 21 55 33 18 50 30 22 53 19 2 0 0 23 21 40 21 3 40 61 223 -47 22 21 40 24 20 59 21 24 36 25 16 9 3 0 0 25 39 44 21 4 10 59 222 -48 24 42 25 26 36 26 23 47 58 27 29 13 4 0 0 27 48 24 21 4 38 57 221 -49 26 53 32 28 42 43 26 1 27 29 33 18 5 0 0 29 48 26 21 5 3 55 221 -49 28 55 49 30 40 33 28 5 54 31 29 8 6 0 0 31 40 34 21 5 26 53 221 -50 30 50 1 32 30 41 30 2 5 33 17 25 7 0 0 33 25 27 21 5 48 51 221 -50 32 36 47 34 13 44 31 50 41 34 58 46 8 0 0 35 3 42 21 6 8 49 221 -51 34 16 47 35 50 17 33 32 20 36 33 45 9 0 0 36 35 51 21 6 26 47 221 -51 35 50 32 37 20 51 35 7 38 38 2 53 10 0 0 38 2 23 21 6 43 45 222 -51 37 18 33 38 45 57 36 37 4 39 26 38 11 0 0 39 23 46 21 6 58 44 222 -52 38 41 18 40 5 59 38 1 8 40 45 26 12 0 0 40 40 23 21 7 13 42 222 -52 39 59 11 41 21 20 39 20 14 41 59 38 13 0 0 41 52 36 21 7 26 41 223 -52 41 12 35 42 32 23 40 34 46 43 9 37 14 0 0 43 0 44 21 7 38 40 223 -52 42 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0 0 54 25 7 21 9 30 24 234 -50 53 56 37 54 53 33 53 29 45 55 20 13 30 0 0 54 55 2 21 9 35 24 235 -50 54 26 58 55 23 3 54 0 30 55 49 19 31 0 0 55 23 34 21 9 39 23 236 -50 54 55 54 55 51 10 54 29 50 56 17 4 32 0 0 55 50 47 21 9 43 22 236 -50 55 23 30 56 18 0 54 57 48 56 43 32 33 0 0 56 16 44 21 9 46 22 237 -49 55 49 50 56 43 35 55 24 29 57 8 47 34 0 0 56 41 30 21 9 50 21 238 -49 56 14 57 57 8 0 55 49 56 57 32 52 35 0 0 57 5 8 21 9 53 20 239 -49 56 38 54 57 31 18 56 14 12 57 55 51 36 0 0 57 27 40 21 9 56 19 240 -49 57 1 46 57 53 31 56 37 22 58 17 47 37 0 0 57 49 10 21 9 59 19 241 -48 57 23 33 58 14 43 56 59 27 58 38 41 38 0 0 58 9 39 21 10 2 18 241 -48 57 44 21 58 34 56 57 20 30 58 58 38 39 0 0 58 29 12 21 10 5 18 242 -48 58 4 10 58 54 12 57 40 35 59 17 39 40 0 0 58 47 50 21 10 7 17 243 -48 58 23 3 59 12 34 57 59 43 59 35 47 41 0 0 59 5 35 21 10 10 16 244 -48 58 41 3 59 30 4 58 17 56 59 53 3 42 0 0 59 22 29 21 10 12 16 245 -47 58 58 11 59 46 44 58 35 18 60 9 30 43 0 0 59 38 34 21 10 14 15 246 -47 59 14 29 60 2 36 58 51 49 60 25 10 44 0 0 59 53 52 21 10 16 15 247 -47 59 30 0 60 17 41 59 7 32 60 40 3 45 0 0 60 8 24 21 10 18 14 247 -47 59 44 45 60 32 2 59 22 28 60 54 12 46 0 0 60 22 13 21 10 20 14 248 -46 59 58 45 60 45 39 59 36 39 61 7 39 47 0 0 60 35 19 21 10 22 13 249 -46 60 12 2 60 58 35 59 50 6 61 20 24 48 0 0 60 47 44 21 10 23 12 250 -46 60 24 37 61 10 49 60 2 51 61 32 30 49 0 0 60 59 29 21 10 25 12 251 -46 60 36 32 61 22 25 60 14 55 61 43 56 50 0 0 61 10 36 21 10 26 11 252 -46 60 47 47 61 33 22 60 26 19 61 54 45 51 0 0 61 21 4 21 10 28 11 253 -45 60 58 25 61 43 42 60 37 5 62 4 57 52 0 0 61 30 56 21 10 29 10 254 -45 61 8 25 61 53 26 60 47 13 62 14 33 53 0 0 61 40 13 21 10 30 10 254 -45 61 17 49 62 2 35 60 56 44 62 23 35 54 0 0 61 48 54 21 10 31 9 255 -45 61 26 38 62 11 9 61 5 40 62 32 2 55 0 0 61 57 2 21 10 32 9 256 -44 61 34 52 62 19 10 61 14 0 62 39 57 56 0 0 62 4 36 21 10 33 8 257 -44 61 42 32 62 26 38 61 21 46 62 47 19 57 0 0 62 11 38 21 10 34 8 258 -44 61 49 40 62 33 34 61 28 59 62 54 10 58 0 0 62 18 7 21 10 35 7 259 -44 61 56 15 62 39 58 61 35 40 63 0 29 59 0 0 62 24 6 21 10 36 7 260 -43 62 2 18 62 45 52 61 41 47 63 6 18 60 0 0 62 29 33 21 10 37 6 261 -43 62 7 50 62 51 15 61 47 24 63 11 37 61 0 0 62 34 31 21 10 38 6 261 -43 62 12 52 62 56 8 61 52 29 63 16 26 62 0 0 62 38 58 21 10 38 6 262 -43 62 17 23 63 0 32 61 57 4 63 20 47 63 0 0 62 42 56 21 10 39 5 263 -43 62 21 24 63 4 26 62 1 8 63 24 38 64 0 0 62 46 25 21 10 39 5 264 -42 62 24 56 63 7 52 62 4 42 63 28 1 65 0 0 62 49 25 21 10 40 4 265 -42 62 27 58 63 10 50 62 7 47 63 30 56 66 0 0 62 51 56 21 10 40 4 266 -42 62 30 31 63 13 19 62 10 23 63 33 24 67 0 0 62 53 59 21 10 41 3 267 -42 62 32 36 63 15 20 62 12 29 63 35 23 68 0 0 62 55 34 21 10 41 3 268 -41 62 34 13 63 16 54 62 14 7 63 36 56 69 0 0 62 56 41 21 10 41 2 269 -41 62 35 20 63 18 0 62 15 15 63 38 1 70 0 0 62 57 20 21 10 42 2 269 -41 62 36 0 63 18 38 62 15 56 63 38 38 71 0 0 62 57 31 21 10 42 1 270 -41 62 36 11 63 18 49 62 16 7 63 38 49 72 0 0 62 57 14 21 10 42 1 271 -40 62 35 55 63 18 32 62 15 50 63 38 33 73 0 0 62 56 30 21 10 42 0 272 -40 62 35 10 63 17 49 62 15 5 63 37 49 74 0 0 62 55 18 21 10 42 0 273 -40 62 33 57 63 16 37 .. .. .. 63 36 39 Data for the target star ------------------------ * name: TYC 0084-01078-1 * constellation : Orion * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 04 45 20.2046 DE: +01 22 43.208 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .020, .020 ) * V mag [mag]: 10.0 * B mag [mag]: 10.4 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (329) Svea approx. diameter [km]: 78 approx. diameter ["]: .055 distance from Earth [AU]: 1.94300 * orbital information: orbit source: Preston date of fit: 2008 Jan 17 source of used astrometry: FASTT TMO MPC (via Astdys) number of used observations: 891 number of rejected observations: 95 time covered by the observations: 1905 Sep 19 - 2008 Jan 10 1 sigma uncertainty ellipse (major, minor, PA): 0.017, 0.011, 88° remarks: * orbital elements for (329) Svea : Mean anomaly = 221.69110094 deg Arg. of pericenter = 52.70468355 deg Long. of node = 178.53677258 deg Inclination = 15.88186460 deg Eccentricity = 0.02363329 Semimajor axis = 2.47712467 AU Perihelion dist = 2.41858207 AU Mag: H = 9.48, G = 0.15 Epoch of elements : MJD 54498.87300000 TDT (2008 Feb 02.873) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Feb 02 329 Svea 20h 57.9m UT 10.0 4 45 20.205 1 22 43.21TYC 0084-01078-1 10.4 14.1 78 9.6 1.943 0.408 19.83 -15.560 1.373 228.96 -16.80 20.9642 .16712 -.05129 1.34765 4.38162 0.00504 0.00164 2000 219.4479792008 125.00000 52.704684178.536773 15.8818650.023633292.477124672.418582079.665 0.15 RATE 2.5280310 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.026 0.023 89.2 1.470 0.026 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Jan 17, 18:23 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org