IOTA/IOTA-ES occultation update for (744) Aguntina / TYC 1393-02401-1 event on 2009 Feb 10, 02:39 UT Visible from Summary ------- On 2009 Feb 10 UT, the 59 km diameter asteroid (744) Aguntina will occult a 12.1 mag star in the constellation Cancer for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.3 mag to 14.2 mag (the magnitude of the asteroid) for at most 5.0 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: 64 * date and approx. time of event: 2009 Feb 10, 02:30 - 2009 Feb 10, 02:48 UT * magnitude of target star: 12.1 * magnitude drop [mag]: 2.3 * estimated maximum duration [s]: 5.0 * Moon: 100 % sunlit, 17° distance * Sun: 169° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 60 * 1 sigma uncertainty interval [path widths]: +/- 0.95 * 1 sigma uncertainty interval [seconds]: +/- 6.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .060 +/- .037) * 1 sigma uncertainty ellipse (major, minor, PA): ( .060", .037", 96° ) * approx speed of asteroid's shadow [km/s]: 11.7840 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1393-02401-1 by 744 Aguntina on 2009 Feb 10 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 -140 0 0 38 26 1 2 48 26 10 77 0 38 42 39 38 9 24 39 14 17 37 37 51 -139 0 0 38 37 35 2 48 25 11 78 -1 38 54 11 38 21 0 39 25 46 37 49 31 -138 0 0 38 48 42 2 48 24 12 79 -2 39 5 16 38 32 9 39 36 47 38 0 44 -137 0 0 38 59 22 2 48 22 12 79 -3 39 15 54 38 42 51 39 47 21 38 11 29 -136 0 0 39 9 34 2 48 20 13 80 -3 39 26 4 38 53 5 39 57 28 38 21 47 -135 0 0 39 19 19 2 48 19 14 81 -4 39 35 48 39 2 52 40 7 8 38 31 37 -134 0 0 39 28 38 2 48 17 15 81 -5 39 45 4 39 12 12 40 16 21 38 41 0 -133 0 0 39 37 29 2 48 15 15 82 -6 39 53 54 39 21 5 40 25 8 38 49 57 -132 0 0 39 45 54 2 48 13 16 83 -6 40 2 17 39 29 31 40 33 28 38 58 26 -131 0 0 39 53 52 2 48 11 17 83 -7 40 10 14 39 37 31 40 41 22 39 6 29 -130 0 0 40 1 25 2 48 8 18 84 -8 40 17 45 39 45 5 40 48 50 39 14 5 -129 0 0 40 8 31 2 48 6 19 84 -9 40 24 50 39 52 12 40 55 52 39 21 15 -128 0 0 40 15 11 2 48 4 19 85 -10 40 31 28 39 58 53 41 2 29 39 27 58 -127 0 0 40 21 25 2 48 1 20 86 -10 40 37 41 40 5 9 41 8 39 39 34 16 -126 0 0 40 27 13 2 47 59 21 86 -11 40 43 29 40 10 58 41 14 24 39 40 7 -125 0 0 40 32 36 2 47 56 22 87 -12 40 48 50 40 16 22 41 19 44 39 45 33 -124 0 0 40 37 33 2 47 53 22 88 -13 40 53 47 40 21 20 41 24 39 39 50 33 -123 0 0 40 42 5 2 47 51 23 88 -13 40 58 17 40 25 52 41 29 8 39 55 7 -122 0 0 40 46 11 2 47 48 24 89 -14 41 2 23 40 29 59 41 33 12 39 59 16 -121 0 0 40 49 52 2 47 45 25 90 -15 41 6 4 40 33 41 41 36 51 40 2 59 -120 0 0 40 53 8 2 47 42 25 90 -16 41 9 19 40 36 58 41 40 6 40 6 16 -119 0 0 40 55 59 2 47 39 26 91 -16 41 12 9 40 39 49 41 42 55 40 9 9 -118 0 0 40 58 25 2 47 35 27 92 -17 41 14 35 40 42 16 41 45 20 40 11 36 -117 0 0 41 0 26 2 47 32 28 92 -18 41 16 36 40 44 17 41 47 20 40 13 38 -116 0 0 41 2 2 2 47 29 28 93 -19 41 18 11 40 45 54 41 48 55 40 15 15 -115 0 0 41 3 13 2 47 25 29 94 -19 41 19 22 40 47 5 41 50 6 40 16 27 -114 0 0 41 4 0 2 47 22 30 94 -20 41 20 9 40 47 52 41 50 52 40 17 14 -113 0 0 41 4 22 2 47 18 31 95 -21 41 20 31 40 48 14 41 51 14 40 17 36 -112 0 0 41 4 19 2 47 15 31 96 -22 41 20 28 40 48 11 41 51 11 40 17 33 -111 0 0 41 3 51 2 47 11 32 96 -22 41 20 0 40 47 43 41 50 43 40 17 5 -110 0 0 41 2 59 2 47 7 33 97 -23 41 19 8 40 46 50 41 49 52 40 16 12 -109 0 0 41 1 42 2 47 3 33 98 -24 41 17 51 40 45 33 41 48 36 40 14 54 -108 0 0 41 0 0 2 46 59 34 99 -24 41 16 10 40 43 51 41 46 55 40 13 11 -107 0 0 40 57 54 2 46 55 35 99 -25 41 14 4 40 41 44 41 44 50 40 11 4 -106 0 0 40 55 23 2 46 51 36 100 -26 41 11 34 40 39 13 41 42 21 40 8 31 -105 0 0 40 52 27 2 46 47 36 101 -27 41 8 39 40 36 17 41 39 27 40 5 34 -104 0 0 40 49 7 2 46 43 37 101 -27 41 5 19 40 32 56 41 36 8 40 2 12 -103 0 0 40 45 22 2 46 38 38 102 -28 41 1 35 40 29 10 41 32 25 39 58 24 -102 0 0 40 41 12 2 46 34 39 103 -29 40 57 26 40 24 59 41 28 18 39 54 12 -101 0 0 40 36 37 2 46 29 39 104 -30 40 52 52 40 20 23 41 23 46 39 49 35 -100 0 0 40 31 38 2 46 25 40 104 -30 40 47 53 40 15 23 41 18 49 39 44 32 - 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2008 Mar 09 1 sigma uncertainty ellipse (major, minor, PA): 0.050, 0.029, 98° remarks: * orbital elements for (744) Aguntina : Mean anomaly = 329.01591814 deg Arg. of pericenter = 30.36462792 deg Long. of node = 142.76900934 deg Inclination = 7.70698208 deg Eccentricity = 0.12145787 Semimajor axis = 3.17025164 AU Perihelion dist = 2.78519963 AU Mag: H = 10.20, G = 0.15 Epoch of elements : MJD 54872.11100000 TDT (2009 Feb 10.111) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Feb 10 744 Aguntina 2h 39.7m UT 12.1 8 48 29.723 15 58 10.07TYC 1393-02401-1 12.9 14.2 59 5.0 1.881 -1.903 14.62 -48.1113 15.966 143.64 -14.34 2.6613 0.07282 0.13718 -5.87013 3.12738 0.00115 -0.00013 2000 328.6473212009 2 8.00000 30.364628142.769009 7.7069820.12145787 3.1702516 2.785199610.2 5.00.15 RATE 1.7460770 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.060 0.037 96 1.95 0.041 0 54776.5020090210_2401-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 06, 05:33 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org