IOTA/IOTA-ES occultation update for (1343) Nicole / TYC 0864-00817-1 event on 2009 Feb 01, 04:09 UT Visible from Summary ------- On 2009 Feb 01 UT, the 24 km diameter asteroid (1343) Nicole will occult a 10.3 mag star in the constellation Virgo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.1 mag to 15.4 mag (the magnitude of the asteroid) for at most 5.3 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: 40 * date and approx. time of event: 2009 Feb 01, 03:54 - 2009 Feb 01, 04:16 UT * magnitude of target star: 10.3 * magnitude drop [mag]: 5.1 * estimated maximum duration [s]: 5.3 * Moon: 31 % sunlit, 151° distance * Sun: 137° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 36 * 1 sigma uncertainty interval [path widths]: +/- 1.63 * 1 sigma uncertainty interval [seconds]: +/- 10.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .038 +/- .029) * 1 sigma uncertainty ellipse (major, minor, PA): ( .039", .028", 109° ) * approx speed of asteroid's shadow [km/s]: 4.6360 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0864-00817-1 by 1343 Nicole on 2009 Feb 1 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 E. Longitude Latitude U.T. Alt Az Alt o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude 43 1 34 27 40 50 3 54 21 35 261 -1 42 50 31 27 36 44 43 12 41 27 44 54 42 14 56 27 23 23 43 49 23 27 58 8 42 5 16 28 27 1 3 54 44 36 260 -2 41 54 17 28 22 53 42 16 19 28 31 9 41 18 54 28 9 21 42 52 48 28 44 33 41 10 4 29 13 11 3 55 7 36 259 -3 40 59 8 29 9 0 41 21 4 29 17 22 40 23 55 28 55 19 41 57 22 29 30 56 40 15 53 29 59 21 3 55 30 37 258 -4 40 4 59 29 55 7 40 26 50 30 3 35 39 29 54 29 41 16 41 2 59 30 17 19 39 22 37 30 45 32 3 55 53 38 257 -4 39 11 46 30 41 15 39 33 33 30 49 48 38 36 46 30 27 14 40 9 36 31 3 43 38 30 14 31 31 45 3 56 15 38 256 -5 38 19 23 31 27 25 38 41 8 31 36 5 37 44 28 31 13 15 39 17 6 31 50 9 37 38 38 32 18 2 3 56 38 38 255 -6 37 27 48 32 13 39 37 49 31 32 22 24 36 52 55 31 59 19 38 25 27 32 36 38 36 47 47 33 4 23 3 57 1 39 254 -7 36 36 57 32 59 57 36 58 40 33 8 49 36 2 4 32 45 28 37 34 35 33 23 12 35 57 36 33 50 50 3 57 24 39 252 -8 35 46 47 33 46 21 36 8 30 33 55 19 35 11 53 33 31 42 36 44 26 34 9 52 35 8 4 34 37 24 3 57 46 40 251 -9 34 57 13 34 32 52 35 18 58 34 41 56 34 22 17 34 18 3 35 54 57 34 56 40 34 19 7 35 24 6 3 58 9 40 250 -9 34 8 15 35 19 31 34 30 2 35 28 41 33 33 14 35 4 32 35 6 5 35 43 35 33 30 42 36 10 56 3 58 32 40 249 -10 33 19 48 36 6 18 33 41 39 36 15 35 32 44 42 35 51 9 34 17 48 36 30 39 32 42 47 36 57 57 3 58 55 40 248 -11 32 31 51 36 53 16 32 53 46 37 2 39 31 56 38 36 37 57 33 30 2 37 17 54 31 55 19 37 45 10 3 59 17 41 246 -12 31 44 21 37 40 25 32 6 22 37 49 54 31 9 0 37 24 55 32 42 47 38 5 20 31 8 17 38 32 34 3 59 40 41 245 -12 30 57 16 38 27 46 31 19 23 38 37 22 30 21 45 38 12 5 31 55 58 38 53 0 30 21 38 39 20 12 4 0 3 41 244 -13 30 10 33 39 15 21 30 32 47 39 25 4 29 34 51 38 59 29 31 9 35 39 40 52 29 35 20 40 8 5 4 0 26 41 243 -14 29 24 11 40 3 10 29 46 33 40 13 0 28 48 16 39 47 7 30 23 34 40 29 0 28 49 21 40 56 14 4 0 48 41 241 -14 28 38 8 40 51 15 29 0 39 41 1 12 28 1 59 40 35 0 29 37 55 41 17 25 28 3 39 41 44 40 4 1 11 41 240 -15 27 52 21 41 39 37 28 15 2 41 49 42 27 15 56 41 23 10 28 52 35 42 6 7 27 18 12 42 33 24 4 1 34 41 239 -16 27 6 48 42 28 17 27 29 40 42 38 30 26 30 7 42 11 38 28 7 33 42 55 8 26 32 59 43 22 28 4 1 57 41 238 -16 26 21 29 43 17 17 26 44 33 43 27 38 25 44 28 43 0 25 27 22 46 43 44 29 25 47 57 44 11 53 4 2 19 41 236 -17 25 36 20 44 6 38 25 59 38 44 17 7 24 58 59 43 49 32 26 38 13 44 34 12 25 3 4 45 1 40 4 2 42 41 235 -17 24 51 21 44 56 22 25 14 52 45 6 59 24 13 38 44 39 2 25 53 52 45 24 18 24 18 20 45 51 52 4 3 5 41 234 -18 24 6 29 45 46 29 24 30 16 45 57 15 23 28 21 45 28 54 25 9 42 46 14 49 23 33 41 46 42 30 4 3 28 41 233 -18 23 21 42 46 37 2 23 45 46 46 47 58 22 43 8 46 19 12 24 25 40 47 5 46 22 49 7 47 33 35 4 3 51 40 231 -19 22 36 59 47 28 2 23 1 21 47 39 7 21 57 57 47 9 57 23 41 46 47 57 12 22 4 35 48 25 9 4 4 13 40 230 -19 21 52 17 48 19 31 22 16 58 48 30 47 21 12 45 48 1 9 22 57 58 48 49 8 21 20 4 49 17 14 4 4 36 40 229 -20 21 7 35 49 11 31 21 32 38 49 22 57 20 27 30 48 52 52 22 14 13 49 41 36 20 35 30 50 9 53 4 4 59 40 227 -20 20 22 51 50 4 4 20 48 16 50 15 42 19 42 10 49 45 8 21 30 30 50 34 39 19 50 54 51 3 7 4 5 22 39 226 -21 19 38 2 50 57 12 20 3 52 51 9 2 18 56 43 50 37 57 20 46 48 51 28 18 19 6 11 51 56 59 4 5 44 39 225 -21 18 53 6 51 50 58 19 19 22 52 3 0 18 11 7 51 31 23 20 3 5 52 22 36 18 21 21 52 51 32 4 6 7 39 224 -22 18 8 1 52 45 24 18 34 46 52 57 39 17 25 18 52 25 28 19 19 18 53 17 37 17 36 20 53 46 47 4 6 30 38 222 -22 17 22 45 53 40 33 17 50 1 53 53 1 16 39 13 53 20 15 18 35 27 54 13 22 16 51 6 54 42 49 4 6 53 38 221 -22 16 37 14 54 36 28 17 5 4 54 49 11 15 52 51 54 15 47 17 51 28 55 9 55 16 5 36 55 39 41 4 7 15 37 220 -23 15 51 27 55 33 12 16 19 53 55 46 10 15 6 7 55 12 6 17 7 21 56 7 20 15 19 48 56 37 26 4 7 38 37 219 -23 15 5 19 56 30 49 15 34 25 56 44 4 14 18 58 56 9 17 16 23 2 57 5 41 14 33 38 57 36 9 4 8 1 36 217 -23 14 18 47 57 29 23 14 48 37 57 42 55 13 31 20 57 7 23 15 38 30 58 5 1 13 47 2 58 35 53 4 8 24 36 216 -24 13 31 48 58 28 58 14 2 26 58 42 49 12 43 9 58 6 28 14 53 42 59 5 25 12 59 58 59 36 45 4 8 46 35 215 -24 12 44 17 59 29 40 13 15 48 59 43 50 11 54 18 59 6 37 14 8 35 60 7 0 12 12 19 60 38 49 4 9 9 34 214 -24 11 56 10 60 31 33 12 28 38 60 46 5 11 4 44 60 7 56 13 23 7 61 9 50 11 24 1 61 42 11 4 9 32 34 213 -24 11 7 21 61 34 44 11 40 53 61 49 39 10 14 18 61 10 29 12 37 15 62 14 4 10 34 59 62 47 0 4 9 55 33 211 -24 10 17 43 62 39 20 10 52 27 62 54 41 9 22 53 62 14 24 11 50 55 63 19 47 9 45 5 63 53 23 4 10 18 32 210 -24 9 27 10 63 45 29 10 3 14 64 1 17 8 30 21 63 19 49 11 4 5 64 27 10 8 54 12 65 1 29 4 10 40 31 209 -25 8 35 33 64 53 20 9 13 6 65 9 39 7 36 30 64 26 52 10 16 39 65 36 23 8 2 10 66 11 31 4 11 3 30 208 -25 7 42 41 66 3 5 8 21 57 66 19 57 6 41 7 65 35 43 9 28 35 66 47 37 7 8 49 67 23 39 4 11 26 30 206 -25 6 48 22 67 14 55 7 29 35 67 32 25 5 43 55 66 46 34 8 39 47 68 1 7 6 13 53 68 38 11 4 11 49 29 205 -25 5 52 20 68 29 6 6 35 50 68 47 18 4 44 35 67 59 38 7 50 11 69 17 10 5 17 7 69 55 25 4 12 11 28 204 -24 4 54 15 69 45 56 5 40 25 70 4 55 3 42 41 69 15 13 6 59 43 70 36 6 4 18 6 71 15 42 4 12 34 26 203 -24 3 53 42 71 5 46 4 43 3 71 25 40 2 37 36 70 33 38 6 8 20 71 58 22 3 16 21 72 39 32 4 12 57 25 202 -24 2 50 4 72 29 5 3 43 17 72 50 1 1 28 35 71 55 18 5 15 57 73 24 29 2 11 11 74 7 29 4 13 20 24 200 -24 1 42 35 73 56 26 2 40 36 74 18 36 0 14 30 73 20 44 4 22 38 74 55 9 1 1 34 75 40 22 4 13 42 23 199 -23 0 30 0 75 28 35 1 34 11 75 52 13 - 1 6 17 74 50 35 3 28 33 76 31 16 - 0 14 4 77 19 12 4 14 5 21 197 -23 - 0 49 32 77 6 31 0 22 50 77 31 57 - 2 36 22 76 25 44 2 34 14 78 14 6 - 1 38 23 79 5 27 4 14 28 19 196 -22 - 2 19 17 78 51 38 - 0 55 26 79 19 22 - 4 20 10 78 7 21 1 41 13 80 5 30 - 3 16 35 81 1 19 4 14 51 18 194 -22 - 4 5 33 80 46 0 - 2 24 19 81 16 47 - 6 26 6 79 57 7 0 54 1 82 8 13 - 5 21 6 83 10 15 4 15 13 16 192 -21 - 6 23 24 82 52 49 - 4 12 34 83 27 55 - 9 12 54 81 57 33 0 29 20 84 27 1 - 8 35 56 85 38 26 4 15 36 13 189 -20 - 10 3 43 85 17 39 - 6 51 35 85 59 36 - 13 35 0 84 12 39 2 14 45 87 11 0 - 20 58 7 88 38 4 4 15 59 10 176 -18 - 22 9 31 88 10 45 - 18 37 41 89 6 34 - 24 0 34 86 48 35 149 34 32 89 8 11 178 21 26 86 55 56 4 16 22 6 15 -15 -175 18 59 87 36 37 174 2 28 86 7 38 -119 18 21 88 51 42 ... .. .. .. .. .. Uncertainty in time = +/- 11 secs [Prediction of 2008 Nov 6.0] Data for the target star ------------------------ * name: TYC 0864-00817-1 * constellation : Virgo * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 11 53 19.2626 DE: +08 59 12.739 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .023, .022 ) * V mag [mag]: 10.3 * B mag [mag]: 11.3 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1343) Nicole approx. diameter [km]: 24 approx. diameter ["]: .018 distance from Earth [AU]: 1.86100 * orbital information: orbit source: Preston date of fit: 2008 Nov 05 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 761 number of rejected observations: 64 time covered by the observations: 1935 Mar 29 - 2008 Apr 15 1 sigma uncertainty ellipse (major, minor, PA): 0.032, 0.018, 119° remarks: * orbital elements for (1343) Nicole : Mean anomaly = 256.23330209 deg Arg. of pericenter = 234.58458392 deg Long. of node = 41.30017559 deg Inclination = 6.03438668 deg Eccentricity = 0.11138162 Semimajor axis = 2.56990393 AU Perihelion dist = 2.28366386 AU Mag: H = 10.85, G = 0.15 Epoch of elements : MJD 54863.17300000 TDT (2009 Feb 01.173) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Feb 1 1343 Nicole 4h 1.6m UT 10.3 11 53 19.263 8 59 12.74TYC 0864-00817-1 11.4 15.4 24 5.3 1.861 -0.642 7.93 -13.5619 8.985 123.01 -17.07 4.0261 0.48148 0.57787 -2.00973 1.67575 -0.00387 0.00106 2000 255.4742022009 129.00000234.584584 41.300176 6.0343870.11138162 2.5699039 2.283663911.1 5.00.15 RATE 2.3923720 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.039 0.028 109 2.63 0.029 0 54776.5020090201_0817-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 06, 04:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org