IOTA/IOTA-ES occultation update for (333) Badenia / TYC 1856-01233-1 event on 2009 Aug 04, 10:23 UT Visible from Summary ------- On 2009 Aug 04 UT, the 72 km diameter asteroid (333) Badenia will occult a 9.7 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 5.5 mag to 15.2 mag (the magnitude of the asteroid) for at most 2.0 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: 46 * date and approx. time of event: 2009 Aug 04, 10:20 - 2009 Aug 04, 10:21 UT * magnitude of target star: 9.7 * magnitude drop [mag]: 5.5 * estimated maximum duration [s]: 2.0 * Moon: 98 % sunlit, 149° distance * Sun: 49° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 72 * 1 sigma uncertainty interval [path widths]: +/- 1.43 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .043 +/- .043) * 1 sigma uncertainty ellipse (major, minor, PA): ( .043", .043", 89° ) * approx speed of asteroid's shadow [km/s]: 36.6245 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1856-01233-1 by 333 Badenia on 2009 Aug 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 -114 0 0 - 0 48 14 10 20 6 1 64 -48 - 1 10 5 - 0 26 22 - 2 12 31 0 36 13 -113 0 0 - 0 18 14 10 20 6 2 64 -47 - 0 40 6 0 3 38 - 1 42 35 1 6 16 -112 0 0 0 11 52 10 20 6 3 64 -46 - 0 10 1 0 33 46 - 1 12 32 1 36 26 -111 0 0 0 42 4 10 20 7 4 64 -45 0 20 11 1 3 59 - 0 42 23 2 6 41 -110 0 0 1 12 21 10 20 7 5 64 -43 0 50 27 1 34 16 - 0 12 9 2 37 1 -109 0 0 1 42 43 10 20 7 6 64 -42 1 20 48 2 4 38 0 18 10 3 7 24 -108 0 0 2 13 7 10 20 8 7 64 -41 1 51 12 2 35 3 0 48 33 3 37 51 -107 0 0 2 43 34 10 20 8 8 64 -40 2 21 38 3 5 30 1 18 58 4 8 19 -106 0 0 3 14 2 10 20 9 10 64 -39 2 52 6 3 35 59 1 49 25 4 38 48 -105 0 0 3 44 31 10 20 9 11 64 -38 3 22 35 4 6 28 2 19 53 5 9 18 -104 0 0 4 15 0 10 20 10 12 64 -37 3 53 4 4 36 57 2 50 22 5 39 47 -103 0 0 4 45 28 10 20 11 13 64 -36 4 23 32 5 7 25 3 20 50 6 10 15 -102 0 0 5 15 54 10 20 12 14 64 -34 4 53 58 5 37 51 3 51 17 6 40 41 -101 0 0 5 46 17 10 20 12 15 64 -33 5 24 21 6 8 14 4 21 41 7 11 3 -100 0 0 6 16 37 10 20 13 16 64 -32 5 54 42 6 38 33 4 52 2 7 41 22 - 99 0 0 6 46 53 10 20 14 17 64 -31 6 24 58 7 8 48 5 22 20 8 11 35 - 98 0 0 7 17 3 10 20 15 19 65 -30 6 55 8 7 38 58 5 52 32 8 41 43 - 97 0 0 7 47 7 10 20 16 20 65 -29 7 25 13 8 9 2 6 22 39 9 11 45 - 96 0 0 8 17 5 10 20 18 21 65 -28 7 55 11 8 38 58 6 52 39 9 41 39 - 95 0 0 8 46 54 10 20 19 22 65 -27 8 25 2 9 8 47 7 22 32 10 11 26 - 94 0 0 9 16 36 10 20 20 23 65 -26 8 54 44 9 38 27 7 52 17 10 41 3 - 93 0 0 9 46 8 10 20 22 24 65 -24 9 24 17 10 7 58 8 21 53 11 10 31 - 92 0 0 10 15 30 10 20 23 25 66 -23 9 53 41 10 37 19 8 51 20 11 39 48 - 91 0 0 10 44 41 10 20 24 26 66 -22 10 22 53 11 6 29 9 20 36 12 8 55 - 90 0 0 11 13 40 10 20 26 27 66 -21 10 51 54 11 35 28 9 49 41 12 37 49 - 89 0 0 11 42 28 10 20 27 29 66 -20 11 20 43 12 4 14 10 18 34 13 6 31 - 88 0 0 12 11 3 10 20 29 30 66 -19 11 49 19 12 32 47 10 47 14 13 35 0 - 87 0 0 12 39 23 10 20 31 31 67 -18 12 17 42 13 1 6 11 15 41 14 3 15 - 86 0 0 13 7 30 10 20 32 32 67 -17 12 45 50 13 29 11 11 43 54 14 31 15 - 85 0 0 13 35 22 10 20 34 33 67 -16 13 13 43 13 57 1 12 11 53 14 58 59 - 84 0 0 14 2 58 10 20 36 34 67 -15 13 41 21 14 24 35 12 39 36 15 26 28 - 83 0 0 14 30 18 10 20 38 35 68 -14 14 8 43 14 51 53 13 7 3 15 53 41 - 82 0 0 14 57 21 10 20 40 36 68 -12 14 35 48 15 18 54 13 34 14 16 20 36 - 81 0 0 15 24 6 10 20 42 37 68 -11 15 2 36 15 45 37 14 1 7 16 47 14 - 80 0 0 15 50 34 10 20 44 38 69 -10 15 29 6 16 12 3 14 27 43 17 13 33 - 79 0 0 16 16 43 10 20 46 39 69 -9 15 55 17 16 38 10 14 54 1 17 39 34 - 78 0 0 16 42 34 10 20 48 40 69 -8 16 21 10 17 3 58 15 20 0 18 5 16 - 77 0 0 17 8 5 10 20 50 41 70 -7 16 46 43 17 29 27 15 45 39 18 30 38 - 76 0 0 17 33 16 10 20 52 42 70 -6 17 11 56 17 54 36 16 10 59 18 55 40 - 75 0 0 17 58 7 10 20 54 43 70 -5 17 36 49 18 19 24 16 35 59 19 20 22 - 74 0 0 18 22 37 10 20 56 45 71 -4 18 1 22 18 43 52 17 0 38 19 44 43 - 73 0 0 18 46 45 10 20 59 46 71 -3 18 25 33 19 7 58 17 24 56 20 8 42 - 72 0 0 19 10 33 10 21 1 47 72 -2 18 49 23 19 31 43 17 48 53 20 32 20 - 71 0 0 19 33 58 10 21 3 48 72 -1 19 12 51 19 55 6 18 12 28 20 55 35 Uncertainty in time = +/- 3 secs [Prediction of 2008 Apr 25.0] Data for the target star ------------------------ * name: TYC 1856-01233-1 * constellation : Taurus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 05 31 26.3577 DE: +26 17 55.081 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .040, .042 ) * V mag [mag]: 9.7 * B mag [mag]: 11.3 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (333) Badenia approx. diameter [km]: 72 approx. diameter ["]: .030 distance from Earth [AU]: 3.35500 * orbital information: orbit source: Preston date of fit: 2008 Apr 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 805 number of rejected observations: 97 time covered by the observations: 1903 Sep 14 - 2007 Jul 12 1 sigma uncertainty ellipse (major, minor, PA): 0.017, 0.009, 86° remarks: * orbital elements for (333) Badenia : Mean anomaly = 40.92462319 deg Arg. of pericenter = 19.05693316 deg Long. of node = 353.62754315 deg Inclination = 3.77561513 deg Eccentricity = 0.16195568 Semimajor axis = 3.12834376 AU Perihelion dist = 2.62169071 AU Mag: H = 9.29, G = 0.15 Epoch of elements : MJD 55047.43300000 TDT (2009 Aug 04.433) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Aug 4 333 Badenia 10h 23.0m UT 9.7 5 31 26.358 26 17 55.08TYC 1856-01233-1 11.3 15.2 72 2.0 3.355 4.016 4.55 -26.0117 26.297 25.78 17.14 10.3834 -0.00427 0.06257 20.59894 1.73495 -0.00416 -0.00001 2000 39.6005972009 728.00000 19.056933353.627543 3.7756150.16195568 3.1283438 2.6216907 9.5 5.00.15 RATE 1.7812810 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.043 0.043 89 2.43 0.042 0 54581.5020090804_1233-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Apr 25, 07:49 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org