IOTA/IOTA-ES occultation update for (303) Josephina / TYC 6912-01117-1 event on 2009 May 09, 15:36 UT Visible from Summary ------- On 2009 May 09 UT, the 99 km diameter asteroid (303) Josephina will occult a 11.4 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.0 mag to 14.4 mag (the magnitude of the asteroid) for at most 10.6 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: 88 * date and approx. time of event: 2009 May 09, 15:25 - 2009 May 09, 15:39 UT * magnitude of target star: 11.4 * magnitude drop [mag]: 3.0 * estimated maximum duration [s]: 10.6 * Moon: 100 % sunlit, 70° distance * Sun: 103° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 100 * 1 sigma uncertainty interval [path widths]: +/- 0.55 * 1 sigma uncertainty interval [seconds]: +/- 6.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .034 +/- .027) * 1 sigma uncertainty ellipse (major, minor, PA): ( .035", .026", 82° ) * approx speed of asteroid's shadow [km/s]: 9.3886 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6912-01117-1 by 303 Josephina on 2009 May 9 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 117 0 0 -10 28 15 15 25 51 1 115 -77 -10 58 18 - 9 58 15 -11 31 23 - 9 25 18 118 0 0 -10 56 37 15 25 51 2 115 -78 -11 26 38 -10 26 37 -11 59 43 - 9 53 40 119 0 0 -11 24 51 15 25 52 3 115 -80 -11 54 52 -10 54 53 -12 27 56 -10 21 57 120 0 0 -11 52 59 15 25 53 4 115 -81 -12 22 59 -11 23 2 -12 56 1 -10 50 7 121 0 0 -12 20 59 15 25 54 5 115 -82 -12 50 58 -11 51 3 -13 23 59 -11 18 9 122 0 0 -12 48 51 15 25 55 7 114 -83 -13 18 48 -12 18 56 -13 51 48 -11 46 3 123 0 0 -13 16 33 15 25 57 8 114 -84 -13 46 29 -12 46 39 -14 19 27 -12 13 48 124 0 0 -13 44 5 15 25 59 9 114 -85 -14 14 0 -13 14 13 -14 46 56 -12 41 23 125 0 0 -14 11 26 15 26 1 10 114 -86 -14 41 19 -13 41 36 -15 14 14 -13 8 48 126 0 0 -14 38 37 15 26 3 11 113 -86 -15 8 28 -14 8 47 -15 41 21 -13 36 2 127 0 0 -15 5 35 15 26 6 12 113 -87 -15 35 24 -14 35 47 -16 8 15 -14 3 4 128 0 0 -15 32 20 15 26 9 13 113 -88 -16 2 7 -15 2 35 -16 34 56 -14 29 53 129 0 0 -15 58 52 15 26 11 14 113 -88 -16 28 37 -15 29 9 -17 1 23 -14 56 29 130 0 0 -16 25 10 15 26 15 15 112 -87 -16 54 53 -15 55 29 -17 27 37 -15 22 52 131 0 0 -16 51 13 15 26 18 16 112 -86 -17 20 54 -16 21 35 -17 53 35 -15 49 0 132 0 0 -17 17 1 15 26 22 17 112 -85 -17 46 40 -16 47 25 -18 19 18 -16 14 53 133 0 0 -17 42 34 15 26 26 18 111 -85 -18 12 10 -17 13 0 -18 44 46 -16 40 31 134 0 0 -18 7 50 15 26 30 19 111 -84 -18 37 23 -17 38 19 -19 9 56 -17 5 53 135 0 0 -18 32 49 15 26 34 20 111 -83 -19 2 20 -18 3 21 -19 34 50 -17 30 57 136 0 0 -18 57 31 15 26 38 21 110 -82 -19 26 59 -18 28 5 -19 59 26 -17 55 45 137 0 0 -19 21 55 15 26 43 22 110 -81 -19 51 20 -18 52 32 -20 23 44 -18 20 15 138 0 0 -19 46 0 15 26 48 24 110 -80 -20 15 22 -19 16 40 -20 47 43 -18 44 26 139 0 0 -20 9 47 15 26 53 25 109 -79 -20 39 6 -19 40 30 -21 11 23 -19 8 19 140 0 0 -20 33 15 15 26 58 26 109 -78 -21 2 30 -20 4 1 -21 34 44 -19 31 53 141 0 0 -20 56 22 15 27 4 27 109 -77 -21 25 35 -20 27 11 -21 57 45 -19 55 7 142 0 0 -21 19 10 15 27 9 28 108 -76 -21 48 19 -20 50 2 -22 20 26 -20 18 1 143 0 0 -21 41 37 15 27 15 29 108 -75 -22 10 43 -21 12 32 -22 42 46 -20 40 35 144 0 0 -22 3 43 15 27 21 30 107 -74 -22 32 46 -21 34 41 -23 4 45 -21 2 48 145 0 0 -22 25 27 15 27 27 31 107 -73 -22 54 27 -21 56 29 -23 26 23 -21 24 39 146 0 0 -22 46 50 15 27 33 32 106 -72 -23 15 47 -22 17 56 -23 47 39 -21 46 10 147 0 0 -23 7 52 15 27 40 33 106 -71 -23 36 45 -22 39 0 -24 8 33 -22 7 18 148 0 0 -23 28 30 15 27 46 34 106 -70 -23 57 20 -22 59 43 -24 29 5 -22 28 4 149 0 0 -23 48 47 15 27 53 35 105 -69 -24 17 33 -23 20 2 -24 49 14 -22 48 27 150 0 0 -24 8 41 15 28 0 36 105 -68 -24 37 23 -23 40 0 -25 9 0 -23 8 28 151 0 0 -24 28 11 15 28 7 37 104 -67 -24 56 50 -23 59 34 -25 28 24 -23 28 6 152 0 0 -24 47 18 15 28 14 38 104 -66 -25 15 54 -24 18 44 -25 47 24 -23 47 21 153 0 0 -25 6 2 15 28 21 39 103 -65 -25 34 35 -24 37 32 -26 6 0 -24 6 12 154 0 0 -25 24 23 15 28 29 40 103 -64 -25 52 51 -24 55 55 -26 24 13 -24 24 39 155 0 0 -25 42 19 15 28 36 41 102 -63 -26 10 44 -25 13 55 -26 42 2 -24 42 43 156 0 0 -25 59 51 15 28 44 42 102 -62 -26 28 13 -25 31 31 -26 59 27 -25 0 22 157 0 0 -26 16 59 15 28 52 43 101 -61 -26 45 18 -25 48 42 -27 16 28 -25 17 37 158 0 0 -26 33 43 15 29 0 44 101 -60 -27 1 58 -26 5 29 -27 33 5 -25 34 28 159 0 0 -26 50 2 15 29 8 44 100 -59 -27 18 14 -26 21 52 -27 49 17 -25 50 54 160 0 0 -27 5 57 15 29 16 45 99 -58 -27 34 5 -26 37 50 -28 5 5 -26 6 56 161 0 0 -27 21 27 15 29 24 46 99 -57 -27 49 32 -26 53 23 -28 20 28 -26 22 33 162 0 0 -27 36 32 15 29 32 47 98 -56 -28 4 34 -27 8 31 -28 35 26 -26 37 45 163 0 0 -27 51 12 15 29 41 48 98 -55 -28 19 11 -27 23 15 -28 49 59 -26 52 32 164 0 0 -28 5 27 15 29 49 49 97 -54 -28 33 23 -27 37 33 -29 4 8 -27 6 53 165 0 0 -28 19 18 15 29 58 50 96 -53 -28 47 10 -27 51 27 -29 17 52 -27 20 50 166 0 0 -28 32 43 15 30 6 51 96 -52 -29 0 32 -28 4 55 -29 31 10 -27 34 22 167 0 0 -28 45 43 15 30 15 52 95 -51 -29 13 29 -28 17 58 -29 44 4 -27 47 28 168 0 0 -28 58 17 15 30 24 53 94 -50 -29 26 1 -28 30 35 -29 56 33 -28 0 9 169 0 0 -29 10 27 15 30 33 54 94 -49 -29 38 7 -28 42 48 -30 8 36 -28 12 24 170 0 0 -29 22 11 15 30 42 55 93 -49 -29 49 49 -28 54 34 -30 20 14 -28 24 14 171 0 0 -29 33 30 15 30 51 56 92 -48 -30 1 5 -29 5 56 -30 31 28 -28 35 38 172 0 0 -29 44 23 15 31 0 57 92 -47 -30 11 56 -29 16 52 -30 42 16 -28 46 38 173 0 0 -29 54 52 15 31 9 57 91 -46 -30 22 22 -29 27 23 -30 52 38 -28 57 11 174 0 0 -30 4 54 15 31 18 58 90 -45 -30 32 22 -29 37 28 -31 2 36 -29 7 19 175 0 0 -30 14 32 15 31 28 59 89 -44 -30 41 57 -29 47 8 -31 12 8 -29 17 1 176 0 0 -30 23 44 15 31 37 60 88 -43 -30 51 7 -29 56 22 -31 21 16 -29 26 18 177 0 0 -30 32 31 15 31 46 61 88 -42 -30 59 51 -30 5 11 -31 29 58 -29 35 10 178 0 0 -30 40 52 15 31 56 62 87 -41 -31 8 10 -30 13 35 -31 38 14 -29 43 35 179 0 0 -30 48 48 15 32 6 63 86 -40 -31 16 4 -30 21 33 -31 46 6 -29 51 35 180 0 0 -30 56 18 15 32 15 64 85 -39 -31 23 33 -30 29 5 -31 53 33 -29 59 10 -179 0 0 -31 3 23 15 32 25 65 84 -39 -31 30 36 -30 36 12 -32 0 34 -30 6 19 -178 0 0 -31 10 3 15 32 35 65 83 -38 -31 37 14 -30 42 54 -32 7 10 -30 13 2 -177 0 0 -31 16 18 15 32 44 66 82 -37 -31 43 27 -30 49 10 -32 13 21 -30 19 20 -176 0 0 -31 22 7 15 32 54 67 81 -36 -31 49 15 -30 55 0 -32 19 7 -30 25 13 -175 0 0 -31 27 30 15 33 4 68 80 -35 -31 54 37 -31 0 25 -32 24 28 -30 30 39 -174 0 0 -31 32 29 15 33 14 69 79 -34 -31 59 34 -31 5 25 -32 29 23 -30 35 40 -173 0 0 -31 37 2 15 33 24 70 77 -33 -32 4 6 -31 9 59 -32 33 54 -30 40 16 -172 0 0 -31 41 10 15 33 34 71 76 -32 -32 8 12 -31 14 8 -32 37 59 -30 44 26 -171 0 0 -31 44 52 15 33 44 71 75 -31 -32 11 54 -31 17 52 -32 41 39 -30 48 10 -170 0 0 -31 48 9 15 33 54 72 73 -31 -32 15 10 -31 21 10 -32 44 55 -30 51 29 -169 0 0 -31 51 1 15 34 4 73 72 -30 -32 18 1 -31 24 2 -32 47 45 -30 54 23 -168 0 0 -31 53 27 15 34 14 74 70 -29 -32 20 27 -31 26 29 -32 50 10 -30 56 51 -167 0 0 -31 55 28 15 34 24 75 68 -28 -32 22 27 -31 28 31 -32 52 10 -30 58 53 -166 0 0 -31 57 4 15 34 35 75 66 -27 -32 24 3 -31 30 7 -32 53 45 -31 0 30 -165 0 0 -31 58 15 15 34 45 76 64 -26 -32 25 13 -31 31 18 -32 54 54 -31 1 41 -164 0 0 -31 59 0 15 34 55 77 62 -25 -32 25 58 -31 32 3 -32 55 39 -31 2 26 -163 0 0 -31 59 20 15 35 5 78 59 -24 -32 26 18 -31 32 23 -32 55 59 -31 2 47 -162 0 0 -31 59 14 15 35 16 78 57 -24 -32 26 12 -31 32 18 -32 55 53 -31 2 41 -161 0 0 -31 58 43 15 35 26 79 53 -23 -32 25 41 -31 31 47 -32 55 23 -31 2 10 -160 0 0 -31 57 47 15 35 37 80 50 -22 -32 24 45 -31 30 50 -32 54 27 -31 1 13 -159 0 0 -31 56 26 15 35 47 81 46 -21 -32 23 24 -31 29 29 -32 53 6 -30 59 51 -158 0 0 -31 54 39 15 35 57 81 41 -20 -32 21 38 -31 27 41 -32 51 20 -30 58 3 -157 0 0 -31 52 27 15 36 8 82 36 -19 -32 19 26 -31 25 28 -32 49 9 -30 55 50 -156 0 0 -31 49 49 15 36 18 82 30 -18 -32 16 49 -31 22 50 -32 46 33 -30 53 10 -155 0 0 -31 46 46 15 36 29 83 24 -17 -32 13 47 -31 19 46 -32 43 32 -30 50 5 -154 0 0 -31 43 17 15 36 40 83 16 -16 -32 10 19 -31 16 16 -32 40 5 -30 46 35 -153 0 0 -31 39 23 15 36 50 83 8 -16 -32 6 26 -31 12 21 -32 36 13 -30 42 39 -152 0 0 -31 35 3 15 37 1 83 359 -15 -32 2 7 -31 8 0 -32 31 56 -30 38 17 -151 0 0 -31 30 18 15 37 11 83 351 -14 -31 57 24 -31 3 14 -32 27 13 -30 33 29 -150 0 0 -31 25 7 15 37 22 83 342 -13 -31 52 14 -30 58 2 -32 22 5 -30 28 15 -149 0 0 -31 19 31 15 37 33 83 334 -12 -31 46 39 -30 52 24 -32 16 32 -30 22 36 -148 0 0 -31 13 29 15 37 43 83 326 -11 -31 40 39 -30 46 21 -32 10 34 -30 16 31 -147 0 0 -31 7 2 15 37 54 82 320 -10 -31 34 13 -30 39 52 -32 4 10 -30 10 0 -146 0 0 -31 0 9 15 38 5 82 314 -9 -31 27 22 -30 32 57 -31 57 20 -30 3 3 -145 0 0 -30 52 50 15 38 15 81 308 -8 -31 20 5 -30 25 36 -31 50 5 -29 55 40 -144 0 0 -30 45 5 15 38 26 81 304 -8 -31 12 22 -30 17 49 -31 42 25 -29 47 51 -143 0 0 -30 36 55 15 38 37 80 300 -7 -31 4 14 -30 9 37 -31 34 19 -29 39 37 -142 0 0 -30 28 19 15 38 47 79 296 -6 -30 55 40 -30 0 59 -31 25 48 -29 30 56 -141 0 0 -30 19 17 15 38 58 78 293 -5 -30 46 41 -29 51 55 -31 16 51 -29 21 49 -140 0 0 -30 9 49 15 39 9 78 290 -4 -30 37 15 -29 42 25 -31 7 28 -29 12 17 -139 0 0 -29 59 56 15 39 19 77 288 -3 -30 27 25 -29 32 29 -30 57 40 -29 2 18 -138 0 0 -29 49 37 15 39 30 76 285 -2 -30 17 8 -29 22 7 -30 47 26 -28 51 54 -137 0 0 -29 38 52 15 39 41 75 283 -1 -30 6 25 -29 11 19 -30 36 46 -28 41 3 -136 0 0 -29 27 41 15 39 51 74 281 0 -29 55 17 -29 0 6 -30 25 41 -28 29 46 Uncertainty in time = +/- 8 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 6912-01117-1 * constellation : Capricornus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 20 38 29.3775 DE: -25 12 55.788 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .028, .023 ) * V mag [mag]: 11.4 * B mag [mag]: 11.9 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (303) Josephina approx. diameter [km]: 99 approx. diameter ["]: .048 distance from Earth [AU]: 2.83600 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 864 number of rejected observations: 107 time covered by the observations: 1916 Aug 29 - 2008 Feb 10 1 sigma uncertainty ellipse (major, minor, PA): 0.021, 0.014, 69° remarks: * orbital elements for (303) Josephina : Mean anomaly = 245.26087646 deg Arg. of pericenter = 64.89881372 deg Long. of node = 344.09257943 deg Inclination = 6.87876450 deg Eccentricity = 0.06743901 Semimajor axis = 3.12377547 AU Perihelion dist = 2.91311114 AU Mag: H = 8.75, G = 0.15 Epoch of elements : MJD 54960.65000000 TDT (2009 May 09.650) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 May 9 303 Josephina 15h 37.1m UT 11.4 20 38 29.377-25 12 55.79TYC 6912-01117-1 11.9 14.4 99 10.6 2.836 1.206 1.37 -152.2401 -25.216 -55.17 17.51 15.6186 0.01028 -0.10767 5.28077 0.44140 -0.00540 -0.00127 2000 245.1448392009 5 9.00000 64.898814344.092579 6.8787640.06743901 3.1237755 2.9131111 8.7 5.00.15 RATE 1.7851890 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.035 0.026 82 1.55 0.027 0 54545.5020090509_1117-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 08:04 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org