IOTA/IOTA-ES occultation update for (374) Burgundia / TYC 5704-00628-1 event on 2008 Oct 17, 21:06 UT Visible from W Europe Summary ------- On 2008 Oct 17 UT, the 46 km diameter asteroid (374) Burgundia will occult a 11.1 mag star in the constellation Scutum for observers along a path across W Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.0 mag to 14.0 mag (the magnitude of the asteroid) for at most 1.8 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: 54 * date and approx. time of event: 2008 Oct 17, 21:06 - 2008 Oct 17, 21:08 UT * magnitude of target star: 11.1 * magnitude drop [mag]: 3.0 * estimated maximum duration [s]: 1.8 * Moon: 87 % sunlit, 144° distance * Sun: 76° distance * rough path description: W Europe The occultation path -------------------- * approximate projected width [km]: 70 * 1 sigma uncertainty interval [path widths]: +/- 1.17 * 1 sigma uncertainty interval [seconds]: +/- 2.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .031 +/- .027) * 1 sigma uncertainty ellipse (major, minor, PA): ( .031", .027", 88° ) * approx speed of asteroid's shadow [km/s]: 25.8520 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5704-00628-1 by 374 Burgundia on 2008 Oct 17 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 - 57 0 0 34 49 26 21 6 29 41 187 0 34 30 25 35 8 35 33 46 21 35 53 52 - 56 0 0 34 48 25 21 6 32 41 188 -1 34 29 24 35 7 33 33 45 21 35 52 51 - 55 0 0 34 47 45 21 6 36 40 190 -2 34 28 44 35 6 53 33 44 41 35 52 10 - 54 0 0 34 47 25 21 6 39 40 191 -2 34 28 24 35 6 33 33 44 21 35 51 50 - 53 0 0 34 47 25 21 6 43 40 192 -3 34 28 24 35 6 34 33 44 22 35 51 50 - 52 0 0 34 47 47 21 6 47 40 194 -4 34 28 46 35 6 55 33 44 43 35 52 12 - 51 0 0 34 48 28 21 6 50 40 195 -5 34 29 27 35 7 37 33 45 25 35 52 54 - 50 0 0 34 49 30 21 6 54 39 196 -6 34 30 29 35 8 39 33 46 26 35 53 56 - 49 0 0 34 50 53 21 6 57 39 197 -7 34 31 52 35 10 2 33 47 48 35 55 20 - 48 0 0 34 52 36 21 7 1 39 199 -7 34 33 34 35 11 45 33 49 30 35 57 3 - 47 0 0 34 54 39 21 7 4 39 200 -8 34 35 37 35 13 49 33 51 33 35 59 8 - 46 0 0 34 57 3 21 7 7 38 201 -9 34 38 1 35 16 13 33 53 56 36 1 33 - 45 0 0 34 59 47 21 7 11 38 202 -10 34 40 44 35 18 57 33 56 38 36 4 18 - 44 0 0 35 2 51 21 7 14 38 203 -11 34 43 48 35 22 2 33 59 41 36 7 24 - 43 0 0 35 6 15 21 7 17 37 204 -12 34 47 12 35 25 26 34 3 4 36 10 50 - 42 0 0 35 10 0 21 7 21 37 206 -12 34 50 56 35 29 11 34 6 46 36 14 36 - 41 0 0 35 14 4 21 7 24 36 207 -13 34 54 59 35 33 16 34 10 49 36 18 42 - 40 0 0 35 18 28 21 7 27 36 208 -14 34 59 23 35 37 41 34 15 10 36 23 8 - 39 0 0 35 23 12 21 7 30 35 209 -15 35 4 6 35 42 25 34 19 52 36 27 54 - 38 0 0 35 28 15 21 7 34 35 210 -16 35 9 8 35 47 29 34 24 53 36 33 0 - 37 0 0 35 33 37 21 7 37 35 211 -17 35 14 30 35 52 52 34 30 13 36 38 25 - 36 0 0 35 39 20 21 7 40 34 212 -17 35 20 11 35 58 35 34 35 53 36 44 10 - 35 0 0 35 45 21 21 7 43 33 213 -18 35 26 12 36 4 37 34 41 51 36 50 14 - 34 0 0 35 51 41 21 7 46 33 214 -19 35 32 31 36 10 58 34 48 8 36 56 37 - 33 0 0 35 58 20 21 7 49 32 215 -20 35 39 9 36 17 38 34 54 44 37 3 19 - 32 0 0 36 5 18 21 7 52 32 216 -21 35 46 6 36 24 37 35 1 39 37 10 21 - 31 0 0 36 12 34 21 7 55 31 217 -21 35 53 21 36 31 54 35 8 52 37 17 40 - 30 0 0 36 20 8 21 7 57 31 218 -22 36 0 54 36 39 30 35 16 23 37 25 18 - 29 0 0 36 28 1 21 8 0 30 219 -23 36 8 46 36 47 23 35 24 12 37 33 15 - 28 0 0 36 36 11 21 8 3 29 220 -24 36 16 55 36 55 35 35 32 19 37 41 29 - 27 0 0 36 44 40 21 8 5 29 221 -25 36 25 22 37 4 4 35 40 43 37 50 1 - 26 0 0 36 53 25 21 8 8 28 221 -25 36 34 7 37 12 51 35 49 25 37 58 51 - 25 0 0 37 2 28 21 8 11 27 222 -26 36 43 8 37 21 55 35 58 24 38 7 58 - 24 0 0 37 11 48 21 8 13 27 223 -27 36 52 27 37 31 17 36 7 40 38 17 22 - 23 0 0 37 21 25 21 8 15 26 224 -28 37 2 2 37 40 54 36 17 12 38 27 3 - 22 0 0 37 31 18 21 8 18 25 225 -29 37 11 54 37 50 49 36 27 1 38 37 1 - 21 0 0 37 41 27 21 8 20 25 226 -29 37 22 2 38 1 0 36 37 6 38 47 15 - 20 0 0 37 51 52 21 8 22 24 227 -30 37 32 26 38 11 26 36 47 27 38 57 45 - 19 0 0 38 2 33 21 8 24 23 227 -31 37 43 6 38 22 9 36 58 3 39 8 31 - 18 0 0 38 13 30 21 8 27 23 228 -32 37 54 1 38 33 7 37 8 55 39 19 32 - 17 0 0 38 24 41 21 8 29 22 229 -32 38 5 11 38 44 20 37 20 2 39 30 49 - 16 0 0 38 36 8 21 8 31 21 230 -33 38 16 36 38 55 47 37 31 24 39 42 20 - 15 0 0 38 47 48 21 8 32 21 230 -34 38 28 15 39 7 30 37 43 0 39 54 6 - 14 0 0 38 59 43 21 8 34 20 231 -34 38 40 9 39 19 26 37 54 50 40 6 6 - 13 0 0 39 11 52 21 8 36 19 232 -35 38 52 16 39 31 36 38 6 54 40 18 20 - 12 0 0 39 24 14 21 8 38 18 233 -36 39 4 37 39 44 0 38 19 11 40 30 48 - 11 0 0 39 36 50 21 8 39 18 233 -36 39 17 11 39 56 37 38 31 42 40 43 29 - 10 0 0 39 49 38 21 8 41 17 234 -37 39 29 58 40 9 27 38 44 25 40 56 23 - 9 0 0 40 2 39 21 8 42 16 235 -38 39 42 57 40 22 30 38 57 21 41 9 29 - 8 0 0 40 15 52 21 8 44 15 236 -38 39 56 8 40 35 44 39 10 29 41 22 47 - 7 0 0 40 29 17 21 8 45 15 236 -39 40 9 32 40 49 11 39 23 49 41 36 18 - 6 0 0 40 42 53 21 8 46 14 237 -40 40 23 6 41 2 49 39 37 20 41 49 59 - 5 0 0 40 56 41 21 8 48 13 238 -40 40 36 52 41 16 38 39 51 2 42 3 52 - 4 0 0 41 10 39 21 8 49 12 238 -41 40 50 49 41 30 37 40 4 55 42 17 55 - 3 0 0 41 24 47 21 8 50 11 239 -41 41 4 55 41 44 47 40 18 58 42 32 9 - 2 0 0 41 39 5 21 8 51 11 240 -42 41 19 12 41 59 7 40 33 11 42 46 33 - 1 0 0 41 53 33 21 8 52 10 241 -42 41 33 38 42 13 36 40 47 34 43 1 6 0 0 0 42 8 9 21 8 53 9 241 -43 41 48 13 42 28 14 41 2 6 43 15 48 1 0 0 42 22 55 21 8 53 8 242 -43 42 2 57 42 43 1 41 16 46 43 30 38 2 0 0 42 37 49 21 8 54 8 243 -44 42 17 49 42 57 56 41 31 35 43 45 37 3 0 0 42 52 50 21 8 55 7 243 -44 42 32 49 43 12 59 41 46 32 44 0 44 4 0 0 43 7 59 21 8 55 6 244 -45 42 47 57 43 28 10 42 1 36 44 15 58 5 0 0 43 23 15 21 8 56 5 245 -45 43 3 12 43 43 28 42 16 48 44 31 20 6 0 0 43 38 38 21 8 56 5 245 -46 43 18 33 43 58 52 .. .. .. 44 46 47 7 0 0 43 54 7 21 8 57 4 246 -46 43 34 1 44 14 23 .. .. .. 45 2 21 8 0 0 44 9 42 21 8 57 3 247 -46 43 49 34 44 29 59 .. .. .. 45 18 1 9 0 0 44 25 22 21 8 57 2 247 -47 44 5 13 44 45 40 .. .. .. 45 33 46 10 0 0 44 41 8 21 8 57 1 248 -47 44 20 57 45 1 27 .. .. .. 45 49 36 11 0 0 44 56 57 21 8 57 1 249 -47 44 36 46 45 17 18 .. .. .. 46 5 30 Uncertainty in time = +/- 2 secs [Prediction of 2008 Oct 1.0] Data for the target star ------------------------ * name: TYC 5704-00628-1 * constellation : Scutum * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 18 42 30.0892 DE: -14 20 43.274 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .028, .025 ) * V mag [mag]: 11.1 * B mag [mag]: 11.8 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (374) Burgundia approx. diameter [km]: 46 approx. diameter ["]: .023 distance from Earth [AU]: 2.70200 * orbital information: orbit source: Preston date of fit: 2008 Sep 30 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 820 number of rejected observations: 118 time covered by the observations: 1903 Dec 07 - 2008 Aug 26 1 sigma uncertainty ellipse (major, minor, PA): 0.015, 0.009, 81° remarks: * orbital elements for (374) Burgundia : Mean anomaly = 47.98129881 deg Arg. of pericenter = 27.68160587 deg Long. of node = 219.17660730 deg Inclination = 8.98017703 deg Eccentricity = 0.08092567 Semimajor axis = 2.78169389 AU Perihelion dist = 2.55658346 AU Mag: H = 8.79, G = 0.15 Epoch of elements : MJD 54756.87900000 TDT (2008 Oct 17.879) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Oct 17 374 Burgundia 21h 6.3m UT 11.1 18 42 30.089-14 20 43.27TYC 5704-00628-1 11.8 14.0 46 1.8 2.702 3.265 -1.88 -62.6783 -14.344 -140.27 -9.63 21.1045 0.02939 0.75472 14.58006 -0.57987 0.00551 0.00062 2000 46.51991220081011.00000 27.681606219.176607 8.9801770.08092567 2.7816939 2.5565834 8.7 5.00.15 RATE 2.1244180 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.031 0.027 88 2.17 0.028 0 54740.5020081017_0628-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Oct 01, 05:06 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org