IOTA/IOTA-ES occultation update for (776) Berbericia / TYC 2419-00637-1 event on 2009 Jan 06, 14:54 UT Visible from Summary ------- On 2009 Jan 06 UT, the 151 km diameter asteroid (776) Berbericia will occult a 10.5 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 1.3 mag to 11.4 mag (the magnitude of the asteroid) for at most 12.4 seconds. This update is based on UNSO/Flagstaff astrometry for the asteroid kindly provided by Alice Monet, TMO astrometry for the asteroid kindly provided by Bill Owen, historical astrometry from the MPC files (via AstDys), and the following catalogs for the star position: UCAC. The event at a glimpse ---------------------- * Rank: 99 * date and approx. time of event: 2009 Jan 06, 14:47 - 2009 Jan 06, 15:00 UT * magnitude of target star: 10.5 * magnitude drop [mag]: 1.3 * estimated maximum duration [s]: 12.4 * Moon: 73 % sunlit, 47° distance * Sun: 163° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 186 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 3.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .035 +/- .024) * 1 sigma uncertainty ellipse (major, minor, PA): ( .036", .023", 79° ) * approx speed of asteroid's shadow [km/s]: 12.2303 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2419-00637-1 by 776 Berbericia on 2009 Jan 6 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 49 0 0 - 4 53 0 15 0 56 14 56 -1 - 3 57 41 - 5 49 2 - 3 32 29 - 6 15 3 50 0 0 - 4 26 28 15 0 53 15 56 -2 - 3 31 28 - 5 22 10 - 3 6 24 - 5 48 3 51 0 0 - 4 0 48 15 0 49 16 55 -3 - 3 6 7 - 4 56 12 - 2 41 10 - 5 21 55 52 0 0 - 3 36 0 15 0 46 17 55 -4 - 2 41 36 - 4 31 5 - 2 16 47 - 4 56 40 53 0 0 - 3 12 3 15 0 43 18 55 -5 - 2 17 56 - 4 6 51 - 1 53 15 - 4 32 18 54 0 0 - 2 48 57 15 0 39 19 55 -6 - 1 55 6 - 3 43 28 - 1 30 32 - 4 8 47 55 0 0 - 2 26 42 15 0 35 20 55 -7 - 1 33 6 - 3 20 57 - 1 8 40 - 3 46 8 56 0 0 - 2 5 17 15 0 31 21 55 -8 - 1 11 57 - 2 59 17 - 0 47 37 - 3 24 20 57 0 0 - 1 44 43 15 0 27 22 55 -9 - 0 51 37 - 2 38 27 - 0 27 23 - 3 3 24 58 0 0 - 1 24 58 15 0 22 23 54 -10 - 0 32 6 - 2 18 28 - 0 7 59 - 2 43 18 59 0 0 - 1 6 3 15 0 18 24 54 -11 - 0 13 24 - 1 59 19 0 10 37 - 2 24 3 60 0 0 - 0 47 58 15 0 13 25 54 -12 0 4 29 - 1 41 1 0 28 24 - 2 5 38 61 0 0 - 0 30 41 15 0 8 26 54 -13 0 21 33 - 1 23 32 0 45 24 - 1 48 3 62 0 0 - 0 14 13 15 0 3 27 54 -14 0 37 50 - 1 6 52 1 1 35 - 1 31 18 63 0 0 0 1 26 14 59 58 28 54 -15 0 53 18 - 0 51 1 1 16 58 - 1 15 21 64 0 0 0 16 17 14 59 53 29 53 -16 1 7 59 - 0 35 59 1 31 34 - 1 0 15 65 0 0 0 30 20 14 59 47 29 53 -17 1 21 52 - 0 21 46 1 45 23 - 0 45 56 66 0 0 0 43 36 14 59 42 30 53 -18 1 34 58 - 0 8 21 1 58 25 - 0 32 27 67 0 0 0 56 4 14 59 36 31 53 -19 1 47 18 0 4 16 2 10 40 - 0 19 46 68 0 0 1 7 45 14 59 30 32 52 -20 1 58 50 0 16 5 2 22 9 - 0 7 52 69 0 0 1 18 38 14 59 24 33 52 -21 2 9 36 0 27 7 2 32 52 0 3 13 70 0 0 1 28 45 14 59 18 34 52 -22 2 19 36 0 37 21 2 42 49 0 13 31 71 0 0 1 38 6 14 59 12 35 52 -23 2 28 50 0 46 49 2 52 0 0 23 2 72 0 0 1 46 40 14 59 5 36 51 -24 2 37 18 0 55 29 3 0 25 0 31 45 73 0 0 1 54 28 14 58 59 37 51 -25 2 45 0 1 3 23 3 8 5 0 39 41 74 0 0 2 1 30 14 58 52 37 51 -26 2 51 57 1 10 30 3 14 59 0 46 51 75 0 0 2 7 46 14 58 46 38 50 -27 2 58 9 1 16 51 3 21 9 0 53 14 76 0 0 2 13 16 14 58 39 39 50 -28 3 3 35 1 22 26 3 26 33 0 58 51 77 0 0 2 18 1 14 58 32 40 49 -29 3 8 17 1 27 14 3 31 13 1 3 41 78 0 0 2 22 1 14 58 25 41 49 -30 3 12 13 1 31 17 3 35 8 1 7 45 79 0 0 2 25 15 14 58 18 41 48 -30 3 15 25 1 34 34 3 38 19 1 11 4 80 0 0 2 27 44 14 58 11 42 48 -31 3 17 52 1 37 5 3 40 45 1 13 36 81 0 0 2 29 28 14 58 3 43 47 -32 3 19 34 1 38 51 3 42 27 1 15 22 82 0 0 2 30 27 14 57 56 43 47 -33 3 20 32 1 39 51 3 43 24 1 16 23 83 0 0 2 30 42 14 57 48 44 46 -34 3 20 46 1 40 6 3 43 38 1 16 38 84 0 0 2 30 11 14 57 41 45 46 -35 3 20 15 1 39 35 3 43 7 1 16 7 85 0 0 2 28 55 14 57 33 46 45 -36 3 19 0 1 38 19 3 41 52 1 14 51 86 0 0 2 26 55 14 57 25 46 44 -37 3 17 1 1 36 18 3 39 53 1 12 50 87 0 0 2 24 10 14 57 17 47 43 -37 3 14 17 1 33 31 3 37 10 1 10 2 88 0 0 2 20 40 14 57 10 47 43 -38 3 10 49 1 29 59 3 33 43 1 6 30 89 0 0 2 16 25 14 57 2 48 42 -39 3 6 37 1 25 42 3 29 31 1 2 12 90 0 0 2 11 26 14 56 53 49 41 -40 3 1 40 1 20 40 3 24 36 0 57 8 91 0 0 2 5 42 14 56 45 49 40 -41 2 55 59 1 14 53 3 18 57 0 51 19 92 0 0 1 59 13 14 56 37 50 39 -41 2 49 34 1 8 20 3 12 33 0 44 44 93 0 0 1 51 59 14 56 29 50 38 -42 2 42 24 1 1 1 3 5 26 0 37 23 94 0 0 1 44 0 14 56 20 51 37 -43 2 34 30 0 52 57 2 57 34 0 29 17 95 0 0 1 35 16 14 56 12 51 36 -44 2 25 52 0 44 8 2 48 58 0 20 26 96 0 0 1 25 47 14 56 3 52 35 -45 2 16 29 0 34 33 2 39 37 0 10 48 97 0 0 1 15 33 14 55 55 52 34 -45 2 6 21 0 24 13 2 29 32 0 0 24 98 0 0 1 4 34 14 55 46 52 33 -46 1 55 28 0 13 6 2 18 42 - 0 10 45 99 0 0 0 52 49 14 55 37 53 32 -47 1 43 51 0 1 14 2 7 8 - 0 22 41 100 0 0 0 40 19 14 55 28 53 31 -47 1 31 28 - 0 11 24 1 54 49 - 0 35 23 101 0 0 0 27 3 14 55 20 53 29 -48 1 18 21 - 0 24 48 1 41 45 - 0 48 51 102 0 0 0 13 2 14 55 11 54 28 -49 1 4 28 - 0 38 59 1 27 56 - 1 3 6 103 0 0 - 0 1 46 14 55 2 54 27 -49 0 49 50 - 0 53 56 1 13 22 - 1 18 8 104 0 0 - 0 17 19 14 54 53 54 25 -50 0 34 26 - 1 9 39 0 58 3 - 1 33 56 105 0 0 - 0 33 39 14 54 44 54 24 -51 0 18 17 - 1 26 9 0 41 59 - 1 50 31 106 0 0 - 0 50 44 14 54 35 54 23 -51 0 1 22 - 1 43 26 0 25 8 - 2 7 53 107 0 0 - 1 8 36 14 54 25 54 21 -52 - 0 16 19 - 2 1 30 0 7 33 - 2 26 2 108 0 0 - 1 27 15 14 54 16 54 20 -52 - 0 34 46 - 2 20 21 - 0 10 49 - 2 44 59 109 0 0 - 1 46 41 14 54 7 54 18 -53 - 0 53 59 - 2 39 59 - 0 29 57 - 3 4 43 110 0 0 - 2 6 53 14 53 58 54 17 -53 - 1 13 58 - 3 0 24 - 0 49 50 - 3 25 15 111 0 0 - 2 27 52 14 53 48 54 15 -54 - 1 34 44 - 3 21 38 - 1 10 30 - 3 46 35 112 0 0 - 2 49 38 14 53 39 54 14 -54 - 1 56 17 - 3 43 38 - 1 31 56 - 4 8 42 113 0 0 - 3 12 12 14 53 30 54 12 -55 - 2 18 36 - 4 6 27 - 1 54 9 - 4 31 38 114 0 0 - 3 35 33 14 53 20 54 11 -55 - 2 41 42 - 4 30 4 - 2 17 9 - 4 55 22 115 0 0 - 3 59 42 14 53 11 54 10 -55 - 3 5 36 - 4 54 28 - 2 40 55 - 5 19 54 116 0 0 - 4 24 38 14 53 2 53 8 -55 - 3 30 16 - 5 19 41 - 3 5 28 - 5 45 15 117 0 0 - 4 50 22 14 52 52 53 7 -56 - 3 55 43 - 5 45 43 - 3 30 48 - 6 11 25 118 0 0 - 5 16 54 14 52 43 53 5 -56 - 4 21 58 - 6 12 33 - 3 56 55 - 6 38 23 119 0 0 - 5 44 14 14 52 33 52 4 -56 - 4 49 1 - 6 40 11 - 4 23 50 - 7 6 10 120 0 0 - 6 12 22 14 52 24 52 3 -56 - 5 16 50 - 7 8 38 - 4 51 31 - 7 34 46 121 0 0 - 6 41 18 14 52 15 52 1 -56 - 5 45 28 - 7 37 53 - 5 20 0 - 8 4 11 122 0 0 - 7 11 2 14 52 5 51 360 -56 - 6 14 52 - 8 7 58 - 5 49 17 - 8 34 24 123 0 0 - 7 41 35 14 51 56 51 359 -56 - 6 45 5 - 8 38 51 - 6 19 20 - 9 5 27 124 0 0 - 8 12 55 14 51 47 50 357 -56 - 7 16 5 - 9 10 32 - 6 50 11 - 9 37 19 125 0 0 - 8 45 4 14 51 37 49 356 -56 - 7 47 52 - 9 43 2 - 7 21 49 -10 10 0 126 0 0 - 9 18 0 14 51 28 49 355 -56 - 8 20 27 -10 16 21 - 7 54 14 -10 43 29 127 0 0 - 9 51 44 14 51 19 48 354 -56 - 8 53 49 -10 50 29 - 8 27 27 -11 17 47 128 0 0 -10 26 16 14 51 10 47 353 -56 - 9 27 59 -11 25 24 - 9 1 26 -11 52 54 129 0 0 -11 1 36 14 51 1 47 352 -55 -10 2 55 -12 1 8 - 9 36 12 -12 28 50 130 0 0 -11 37 43 14 50 52 46 350 -55 -10 38 38 -12 37 40 -10 11 45 -13 5 33 131 0 0 -12 14 37 14 50 43 45 349 -55 -11 15 8 -13 14 59 -10 48 4 -13 43 5 132 0 0 -12 52 18 14 50 34 44 348 -54 -11 52 24 -13 53 6 -11 25 9 -14 21 24 133 0 0 -13 30 45 14 50 25 44 347 -54 -12 30 26 -14 32 0 -12 3 0 -15 0 30 134 0 0 -14 9 58 14 50 16 43 346 -53 -13 9 14 -15 11 40 -12 41 36 -15 40 23 135 0 0 -14 49 57 14 50 7 42 346 -53 -13 48 46 -15 52 6 -13 20 56 -16 21 3 136 0 0 -15 30 40 14 49 59 41 345 -52 -14 29 3 -16 33 18 -14 1 1 -17 2 28 137 0 0 -16 12 8 14 49 51 40 344 -51 -15 10 4 -17 15 15 -14 41 50 -17 44 38 138 0 0 -16 54 20 14 49 42 39 343 -51 -15 51 48 -17 57 55 -15 23 22 -18 27 33 139 0 0 -17 37 15 14 49 34 38 342 -50 -16 34 14 -18 41 20 -16 5 36 -19 11 11 140 0 0 -18 20 51 14 49 26 37 341 -49 -17 17 23 -19 25 26 -16 48 31 -19 55 32 141 0 0 -19 5 9 14 49 18 36 341 -49 -18 1 12 -20 10 15 -17 32 8 -20 40 35 142 0 0 -19 50 7 14 49 11 35 340 -48 -18 45 41 -20 55 44 -18 16 24 -21 26 19 143 0 0 -20 35 45 14 49 3 34 339 -47 -19 30 48 -21 41 52 -19 1 18 -22 12 42 144 0 0 -21 22 0 14 48 56 33 338 -46 -20 16 34 -22 28 39 -19 46 51 -22 59 44 145 0 0 -22 8 52 14 48 49 32 338 -45 -21 2 55 -23 16 2 -20 32 59 -23 47 23 146 0 0 -22 56 19 14 48 42 31 337 -44 -21 49 52 -24 4 1 -21 19 43 -24 35 37 147 0 0 -23 44 20 14 48 35 30 336 -43 -22 37 23 -24 52 35 -22 7 0 -25 24 26 148 0 0 -24 32 53 14 48 28 29 336 -42 -23 25 26 -25 41 40 -22 54 49 -26 13 47 149 0 0 -25 21 57 14 48 22 28 335 -41 -24 13 59 -26 31 16 -23 43 9 -27 3 39 150 0 0 -26 11 29 14 48 16 27 334 -40 -25 3 1 -27 21 21 -24 31 57 -27 53 59 151 0 0 -27 1 29 14 48 10 26 334 -39 -25 52 30 -28 11 53 -25 21 13 -28 44 47 152 0 0 -27 51 53 14 48 4 24 333 -38 -26 42 24 -29 2 49 -26 10 54 -29 35 59 153 0 0 -28 42 40 14 47 59 23 332 -37 -27 32 41 -29 54 8 -27 0 57 -30 27 33 154 0 0 -29 33 48 14 47 54 22 332 -36 -28 23 19 -30 45 48 -27 51 22 -31 19 28 155 0 0 -30 25 13 14 47 49 21 331 -35 -29 14 15 -31 37 45 -28 42 6 -32 11 40 156 0 0 -31 16 55 14 47 44 20 331 -34 -30 5 28 -32 29 57 -29 33 6 -33 4 7 157 0 0 -32 8 50 14 47 40 19 330 -33 -30 56 55 -33 22 23 -30 24 20 -33 56 47 158 0 0 -33 0 56 14 47 35 17 329 -32 -31 48 33 -34 14 58 -31 15 46 -34 49 37 159 0 0 -33 53 9 14 47 32 16 329 -31 -32 40 19 -35 7 40 -32 7 20 -35 42 33 160 0 0 -34 45 28 14 47 28 15 328 -30 -33 32 12 -36 0 27 -32 59 2 -36 35 34 161 0 0 -35 37 50 14 47 25 14 327 -29 -34 24 8 -36 53 16 -33 50 47 -37 28 35 162 0 0 -36 30 11 14 47 22 13 327 -28 -35 16 5 -37 46 2 -34 42 33 -38 21 34 163 0 0 -37 22 28 14 47 19 12 326 -26 -36 7 59 -38 38 45 -35 34 17 -39 14 29 164 0 0 -38 14 40 14 47 16 10 326 -25 -36 59 49 -39 31 19 -36 25 57 -40 7 15 165 0 0 -39 6 41 14 47 14 9 325 -24 -37 51 30 -40 23 43 -37 17 29 -40 59 49 166 0 0 -39 58 31 14 47 12 8 324 -23 -38 43 1 -41 15 53 -38 8 51 -41 52 9 167 0 0 -40 50 5 14 47 11 7 324 -22 -39 34 17 -42 7 46 -39 0 0 -42 44 11 168 0 0 -41 41 21 14 47 9 6 323 -21 -40 25 17 -42 59 19 -39 50 53 -43 35 52 169 0 0 -42 32 16 14 47 8 5 322 -20 -41 15 57 -43 50 29 -40 41 27 -44 27 10 170 0 0 -43 22 46 14 47 7 4 322 -19 -42 6 15 -44 41 13 -41 31 40 -45 18 0 171 0 0 -44 12 50 14 47 7 3 321 -18 -42 56 8 -45 31 28 -42 21 28 -46 8 21 172 0 0 -45 2 24 14 47 6 1 320 -17 -43 45 33 -46 21 12 -43 10 49 .. .. .. 173 0 0 -45 51 26 14 47 6 0 319 -15 -44 34 28 .. .. .. -43 59 40 .. .. .. Uncertainty in time = +/- 4 secs [Prediction of 2008 Nov 4.0] Data for the target star ------------------------ * name: TYC 2419-00637-1 * constellation : Auriga * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 06 04 24.2062 DE: +31 45 48.424 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .021, .018 ) * V mag [mag]: 10.5 * B mag [mag]: 10.6 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (776) Berbericia approx. diameter [km]: 151 approx. diameter ["]: .118 distance from Earth [AU]: 1.75700 * orbital information: orbit source: Preston date of fit: 2008 Nov 03 source of used astrometry: FASTT TMO MPC (via Astdys) number of used observations: 593 number of rejected observations: 85 time covered by the observations: 1914 Mar 29 - 2008 Oct 17 1 sigma uncertainty ellipse (major, minor, PA): 0.029, 0.015, 73° remarks: * orbital elements for (776) Berbericia : Mean anomaly = 53.79779312 deg Arg. of pericenter = 306.96186843 deg Long. of node = 79.86938539 deg Inclination = 18.24723811 deg Eccentricity = 0.16135542 Semimajor axis = 2.93389089 AU Perihelion dist = 2.46049171 AU Mag: H = 7.74, G = 0.34 Epoch of elements : MJD 54837.62100000 TDT (2009 Jan 06.621) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Jan 6 776 Berbericia 14h 54.2m UT 10.5 6 4 24.206 31 45 48.42TYC 2419-00637-1 10.6 11.4 151 12.4 1.757 -2.509 13.00 121.2415 31.759 -42.04 -22.43 14.9026 -0.21892 -0.53840 -6.39533 2.59862 0.00159 -0.00084 2000 52.30310720081230.00000306.961868 79.869385 18.2472380.16135542 2.9338909 2.4604917 7.7 5.00.34 RATE 1.9612730 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.036 0.023 79 1.23 0.027 0 54774.5020090106_0637-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Nov 04, 05:23 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org