IOTA/IOTA-ES occultation update for (324) Bamberga / TYC 2942-01968-1 event on 2009 Dec 04, 08:27 UT Visible from Summary ------- On 2009 Dec 04 UT, the 229 km diameter asteroid (324) Bamberga will occult a 12.2 mag star in the constellation Auriga for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 0.1 mag to 10.0 mag (the magnitude of the asteroid) for at most 29.8 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: 100 * date and approx. time of event: 2009 Dec 04, 08:18 - 2009 Dec 04, 08:38 UT * magnitude of target star: 12.2 * magnitude drop [mag]: 0.1 * estimated maximum duration [s]: 29.8 * Moon: 94 % sunlit, 15° distance * Sun: 147° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 308 * 1 sigma uncertainty interval [path widths]: +/- 0.15 * 1 sigma uncertainty interval [seconds]: +/- 4.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .045 +/- .036) * 1 sigma uncertainty ellipse (major, minor, PA): ( .045", .036", 93° ) * approx speed of asteroid's shadow [km/s]: 7.6930 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2942-01968-1 by 324 Bamberga on 2009 Dec 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 ' " Longitude Longitude Longitude Longitude - 48 46 40 -26 0 0 8 18 3 13 326 0 - 46 31 27 - 51 5 52 - 45 51 35 - 51 48 29 - 49 56 59 -25 0 0 8 18 9 14 327 -2 - 47 40 51 - 52 17 18 - 47 0 45 - 53 0 18 - 51 8 54 -24 0 0 8 18 17 16 327 -3 - 48 51 42 - 53 30 32 - 48 11 18 - 54 14 0 - 52 22 34 -23 0 0 8 18 25 17 328 -4 - 50 4 5 - 54 45 45 - 49 23 22 - 55 29 44 - 53 38 8 -22 0 0 8 18 34 19 328 -6 - 51 18 10 - 56 3 7 - 50 37 3 - 56 47 42 - 54 55 47 -21 0 0 8 18 43 20 329 -7 - 52 34 5 - 57 22 50 - 51 52 31 - 58 8 7 - 56 15 42 -20 0 0 8 18 54 21 330 -9 - 53 52 1 - 58 45 7 - 53 9 55 - 59 31 12 - 57 38 5 -19 0 0 8 19 6 23 330 -11 - 55 12 9 - 60 10 14 - 54 29 26 - 60 57 14 - 59 3 12 -18 0 0 8 19 19 24 331 -12 - 56 34 41 - 61 38 28 - 55 51 17 - 62 26 33 - 60 31 21 -17 0 0 8 19 32 26 332 -14 - 57 59 51 - 63 10 12 - 57 15 40 - 63 59 31 - 62 2 51 -16 0 0 8 19 47 27 333 -16 - 59 27 57 - 64 45 51 - 58 42 51 - 65 36 34 - 63 38 5 -15 0 0 8 20 4 29 333 -17 - 60 59 17 - 66 25 53 - 60 13 9 - 67 18 16 - 65 17 32 -14 0 0 8 20 21 31 334 -19 - 62 34 13 - 68 10 56 - 61 46 54 - 69 5 17 - 67 1 47 -13 0 0 8 20 41 32 335 -21 - 64 13 13 - 70 1 47 - 63 24 31 - 70 58 27 - 68 51 30 -12 0 0 8 21 1 34 337 -23 - 65 56 47 - 71 59 23 - 65 6 31 - 72 58 52 - 70 47 37 -11 0 0 8 21 24 35 338 -25 - 67 45 37 - 74 5 0 - 66 53 28 - 75 7 57 - 72 51 16 -10 0 0 8 21 49 37 339 -27 - 69 40 31 - 76 20 24 - 68 46 9 - 77 27 43 Latitude Latitude Latitude Latitude - 74 0 0 - 9 28 21 8 22 3 38 340 -28 - 7 56 55 -11 2 19 - 7 29 56 -11 31 2 - 75 0 0 - 9 1 44 8 22 16 39 341 -29 - 7 30 53 -10 35 3 - 7 4 4 -11 3 34 - 76 0 0 - 8 36 1 8 22 28 39 341 -30 - 7 5 43 -10 8 44 - 6 39 4 -10 37 4 - 77 0 0 - 8 11 13 8 22 41 40 342 -31 - 6 41 28 - 9 43 21 - 6 14 58 -10 11 30 - 78 0 0 - 7 47 20 8 22 54 41 343 -32 - 6 18 5 - 9 18 54 - 5 51 44 - 9 46 52 - 79 0 0 - 7 24 20 8 23 7 41 344 -33 - 5 55 35 - 8 55 23 - 5 29 22 - 9 23 10 - 80 0 0 - 7 2 14 8 23 20 42 345 -34 - 5 33 57 - 8 32 46 - 5 7 52 - 9 0 24 - 81 0 0 - 6 41 1 8 23 33 43 346 -35 - 5 13 10 - 8 11 4 - 4 47 13 - 8 38 32 - 82 0 0 - 6 20 40 8 23 46 43 346 -36 - 4 53 16 - 7 50 15 - 4 27 26 - 8 17 36 - 83 0 0 - 6 1 12 8 23 59 44 347 -37 - 4 34 12 - 7 30 21 - 4 8 29 - 7 57 33 - 84 0 0 - 5 42 36 8 24 12 44 348 -38 - 4 15 59 - 7 11 20 - 3 50 23 - 7 38 24 - 85 0 0 - 5 24 52 8 24 26 45 349 -39 - 3 58 37 - 6 53 12 - 3 33 7 - 7 20 9 - 86 0 0 - 5 7 59 8 24 39 45 350 -40 - 3 42 5 - 6 35 57 - 3 16 41 - 7 2 46 - 87 0 0 - 4 51 58 8 24 53 45 351 -41 - 3 26 23 - 6 19 34 - 3 1 5 - 6 46 17 - 88 0 0 - 4 36 47 8 25 6 46 352 -42 - 3 11 31 - 6 4 3 - 2 46 18 - 6 30 39 - 89 0 0 - 4 22 26 8 25 20 46 353 -43 - 2 57 28 - 5 49 24 - 2 32 20 - 6 15 54 - 90 0 0 - 4 8 56 8 25 33 46 354 -44 - 2 44 15 - 5 35 36 - 2 19 11 - 6 2 1 - 91 0 0 - 3 56 16 8 25 47 47 355 -45 - 2 31 50 - 5 22 40 - 2 6 51 - 5 48 59 - 92 0 0 - 3 44 26 8 26 1 47 356 -46 - 2 20 14 - 5 10 34 - 1 55 19 - 5 36 49 - 93 0 0 - 3 33 25 8 26 14 47 357 -46 - 2 9 26 - 4 59 19 - 1 44 35 - 5 25 29 - 94 0 0 - 3 23 13 8 26 28 47 358 -47 - 1 59 27 - 4 48 54 - 1 34 40 - 5 15 1 - 95 0 0 - 3 13 51 8 26 42 48 359 -48 - 1 50 16 - 4 39 20 - 1 25 32 - 5 5 22 - 96 0 0 - 3 5 18 8 26 56 48 0 -49 - 1 41 52 - 4 30 36 - 1 17 11 - 4 56 35 - 97 0 0 - 2 57 33 8 27 9 48 2 -50 - 1 34 17 - 4 22 41 - 1 9 38 - 4 48 37 - 98 0 0 - 2 50 37 8 27 23 48 3 -50 - 1 27 29 - 4 15 37 - 1 2 53 - 4 41 30 - 99 0 0 - 2 44 30 8 27 37 48 4 -51 - 1 21 29 - 4 9 22 - 0 56 55 - 4 35 13 -100 0 0 - 2 39 11 8 27 50 48 5 -52 - 1 16 16 - 4 3 56 - 0 51 44 - 4 29 45 -101 0 0 - 2 34 40 8 28 4 48 6 -53 - 1 11 51 - 3 59 20 - 0 47 20 - 4 25 7 -102 0 0 - 2 30 58 8 28 18 48 7 -53 - 1 8 13 - 3 55 34 - 0 43 43 - 4 21 19 -103 0 0 - 2 28 4 8 28 31 48 8 -54 - 1 5 22 - 3 52 36 - 0 40 53 - 4 18 21 -104 0 0 - 2 25 58 8 28 45 48 9 -55 - 1 3 18 - 3 50 28 - 0 38 50 - 4 16 12 -105 0 0 - 2 24 40 8 28 58 48 10 -56 - 1 2 2 - 3 49 9 - 0 37 34 - 4 14 52 -106 0 0 - 2 24 11 8 29 12 48 11 -56 - 1 1 32 - 3 48 39 - 0 37 5 - 4 14 22 -107 0 0 - 2 24 29 8 29 25 47 12 -57 - 1 1 50 - 3 48 58 - 0 37 22 - 4 14 42 -108 0 0 - 2 25 36 8 29 39 47 13 -57 - 1 2 55 - 3 50 7 - 0 38 27 - 4 15 51 -109 0 0 - 2 27 31 8 29 52 47 14 -58 - 1 4 47 - 3 52 5 - 0 40 18 - 4 17 50 -110 0 0 - 2 30 14 8 30 6 47 15 -58 - 1 7 27 - 3 54 52 - 0 42 57 - 4 20 38 -111 0 0 - 2 33 46 8 30 19 46 16 -59 - 1 10 54 - 3 58 29 - 0 46 23 - 4 24 16 -112 0 0 - 2 38 6 8 30 32 46 17 -59 - 1 15 9 - 4 2 55 - 0 50 35 - 4 28 45 -113 0 0 - 2 43 15 8 30 45 46 18 -60 - 1 20 11 - 4 8 11 - 0 55 36 - 4 34 3 -114 0 0 - 2 49 13 8 30 59 45 19 -60 - 1 26 1 - 4 14 17 - 1 1 23 - 4 40 11 -115 0 0 - 2 55 59 8 31 12 45 20 -61 - 1 32 39 - 4 21 12 - 1 7 59 - 4 47 10 -116 0 0 - 3 3 35 8 31 25 44 21 -61 - 1 40 4 - 4 28 58 - 1 15 22 - 4 54 59 -117 0 0 - 3 11 59 8 31 38 44 22 -61 - 1 48 18 - 4 37 34 - 1 23 33 - 5 3 39 -118 0 0 - 3 21 14 8 31 50 43 23 -62 - 1 57 21 - 4 47 1 - 1 32 32 - 5 13 10 -119 0 0 - 3 31 18 8 32 3 43 23 -62 - 2 7 12 - 4 57 19 - 1 42 20 - 5 23 32 -120 0 0 - 3 42 12 8 32 16 42 24 -62 - 2 17 52 - 5 8 28 - 1 52 56 - 5 34 45 -121 0 0 - 3 53 56 8 32 28 42 25 -62 - 2 29 21 - 5 20 28 - 2 4 21 - 5 46 51 -122 0 0 - 4 6 30 8 32 41 41 26 -62 - 2 41 40 - 5 33 20 - 2 16 35 - 5 59 48 -123 0 0 - 4 19 56 8 32 53 40 26 -62 - 2 54 48 - 5 47 4 - 2 29 38 - 6 13 38 -124 0 0 - 4 34 12 8 33 5 40 27 -62 - 3 8 46 - 6 1 40 - 2 43 31 - 6 28 20 -125 0 0 - 4 49 20 8 33 17 39 28 -62 - 3 23 35 - 6 17 9 - 2 58 14 - 6 43 55 -126 0 0 - 5 5 20 8 33 29 38 28 -62 - 3 39 14 - 6 33 31 - 3 13 47 - 7 0 24 -127 0 0 - 5 22 12 8 33 41 38 29 -62 - 3 55 44 - 6 50 46 - 3 30 11 - 7 17 47 -128 0 0 - 5 39 56 8 33 53 37 30 -62 - 4 13 5 - 7 8 55 - 3 47 25 - 7 36 4 -129 0 0 - 5 58 33 8 34 4 36 30 -62 - 4 31 18 - 7 27 58 - 4 5 31 - 7 55 15 -130 0 0 - 6 18 3 8 34 16 36 31 -61 - 4 50 23 - 7 47 56 - 4 24 29 - 8 15 22 -131 0 0 - 6 38 27 8 34 27 35 31 -61 - 5 10 20 - 8 8 49 - 4 44 18 - 8 36 24 -132 0 0 - 6 59 45 8 34 38 34 32 -61 - 5 31 10 - 8 30 38 - 5 5 0 - 8 58 22 -133 0 0 - 7 21 58 8 34 49 33 32 -60 - 5 52 53 - 8 53 22 - 5 26 35 - 9 21 17 -134 0 0 - 7 45 6 8 35 0 32 33 -60 - 6 15 30 - 9 17 3 - 5 49 3 - 9 45 8 -135 0 0 - 8 9 9 8 35 10 31 33 -59 - 6 39 1 - 9 41 41 - 6 12 25 -10 9 57 -136 0 0 - 8 34 8 8 35 21 31 34 -59 - 7 3 26 -10 7 16 - 6 36 40 -10 35 44 -137 0 0 - 9 0 3 8 35 31 30 34 -58 - 7 28 47 -10 33 50 - 7 1 51 -11 2 30 -138 0 0 - 9 26 55 8 35 41 29 35 -58 - 7 55 2 -11 1 22 - 7 27 56 -11 30 14 -139 0 0 - 9 54 44 8 35 51 28 35 -57 - 8 22 13 -11 29 52 - 7 54 56 -11 58 58 -140 0 0 -10 23 32 8 36 0 27 36 -56 - 8 50 21 -11 59 23 - 8 22 53 -12 28 42 -141 0 0 -10 53 17 8 36 9 26 36 -56 - 9 19 25 -12 29 53 - 8 51 45 -12 59 27 -142 0 0 -11 24 2 8 36 18 25 37 -55 - 9 49 27 -13 1 25 - 9 21 34 -13 31 13 -143 0 0 -11 55 45 8 36 27 24 37 -54 -10 20 26 -13 33 57 - 9 52 21 -14 4 1 -144 0 0 -12 28 28 8 36 35 23 37 -53 -10 52 22 -14 7 31 -10 24 4 -14 37 51 -145 0 0 -13 2 12 8 36 44 22 38 -52 -11 25 18 -14 42 7 -10 56 46 -15 12 44 -146 0 0 -13 36 55 8 36 51 21 38 -52 -11 59 12 -15 17 46 -11 30 26 -15 48 41 -147 0 0 -14 12 40 8 36 59 20 38 -51 -12 34 5 -15 54 28 -12 5 4 -16 25 41 -148 0 0 -14 49 27 8 37 6 19 39 -50 -13 9 58 -16 32 13 -12 40 42 -17 3 46 -149 0 0 -15 27 15 8 37 13 18 39 -49 -13 46 50 -17 11 3 -13 17 19 -17 42 55 -150 0 0 -16 6 5 8 37 20 17 40 -48 -14 24 43 -17 50 57 -13 54 55 -18 23 10 -151 0 0 -16 45 58 8 37 26 16 40 -47 -15 3 36 -18 31 56 -14 33 31 -19 4 30 -152 0 0 -17 26 54 8 37 32 14 40 -46 -15 43 30 -19 14 0 -15 13 8 -19 46 56 -153 0 0 -18 8 52 8 37 37 13 41 -45 -16 24 24 -19 57 10 -15 53 45 -20 30 29 -154 0 0 -18 51 54 8 37 42 12 41 -44 -17 6 20 -20 41 25 -16 35 22 -21 15 8 -155 0 0 -19 35 59 8 37 47 11 41 -43 -17 49 17 -21 26 47 -17 17 59 -22 0 54 -156 0 0 -20 21 7 8 37 51 10 42 -41 -18 33 14 -22 13 14 -18 1 37 -22 47 47 -157 0 0 -21 7 19 8 37 54 9 42 -40 -19 18 13 -23 0 47 -18 46 15 -23 35 47 -158 0 0 -21 54 33 8 37 58 7 42 -39 -20 4 13 -23 49 26 -19 31 54 -24 24 53 -159 0 0 -22 42 51 8 38 0 6 43 -38 -20 51 13 -24 39 11 -20 18 32 -25 15 7 -160 0 0 -23 32 11 8 38 3 5 43 -37 -21 39 13 -25 30 2 -21 6 11 -26 6 27 -161 0 0 -24 22 34 8 38 5 4 44 -36 -22 28 13 -26 21 57 -21 54 48 -26 58 53 -162 0 0 -25 13 57 8 38 6 3 44 -34 -23 18 13 -27 14 57 -22 44 24 -27 52 24 -163 0 0 -26 6 22 8 38 7 1 45 -33 -24 9 10 .. .. .. -23 34 57 .. .. .. -164 0 0 -26 59 47 8 38 7 0 45 -32 -25 1 6 .. .. .. -24 26 28 .. .. .. Uncertainty in time = +/- 6 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 2942-01968-1 * constellation : Auriga * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 06 56 56.3019 DE: +39 07 45.614 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .041, .035 ) * V mag [mag]: 12.2 * B mag [mag]: 13.1 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (324) Bamberga approx. diameter [km]: 229 approx. diameter ["]: .241 distance from Earth [AU]: 1.31100 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 1529 number of rejected observations: 159 time covered by the observations: 1900 Jan 19 - 2008 Mar 12 1 sigma uncertainty ellipse (major, minor, PA): 0.018, 0.010, 108° remarks: * orbital elements for (324) Bamberga : Mean anomaly = 41.53187170 deg Arg. of pericenter = 43.88736859 deg Long. of node = 327.98919184 deg Inclination = 11.10823044 deg Eccentricity = 0.33706797 Semimajor axis = 2.68438893 AU Perihelion dist = 1.77956740 AU Mag: H = 6.92, G = 0.09 Epoch of elements : MJD 55169.35200000 TDT (2009 Dec 04.352) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Dec 4 324 Bamberga 8h 27.8m UT 12.2 6 56 56.302 39 7 45.61TYC 2942-01968-1 13.1 10.0 229 29.8 1.311 -2.489 3.19 -96.0168 39.127 50.59 -22.27 8.4640 -0.07269 -0.66420 -4.31586 0.47688 -0.00289 -0.00108 2000 39.43611720091125.00000 43.887369327.989192 11.1082300.33706797 2.6843889 1.7795674 6.8 5.00.09 RATE 2.2409700 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.045 0.036 93 1.15 0.036 0 54545.5020091204_1968-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 17:22 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org