IOTA/IOTA-ES occultation update for (107) Camilla / TYC 5667-00329-1 event on 2009 Sep 08, 11:44 UT Visible from Summary ------- On 2009 Sep 08 UT, the 223 km diameter asteroid (107) Camilla will occult a 11.1 mag star in the constellation Serpens for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.6 mag to 13.6 mag (the magnitude of the asteroid) for at most 17.7 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: 99 * date and approx. time of event: 2009 Sep 08, 11:42 - 2009 Sep 08, 11:52 UT * magnitude of target star: 11.1 * magnitude drop [mag]: 2.6 * estimated maximum duration [s]: 17.7 * Moon: 86 % sunlit, 126° distance * Sun: 97° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 227 * 1 sigma uncertainty interval [path widths]: +/- 0.27 * 1 sigma uncertainty interval [seconds]: +/- 5.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .026 +/- .023) * 1 sigma uncertainty ellipse (major, minor, PA): ( .026", .023", 91° ) * approx speed of asteroid's shadow [km/s]: 12.6118 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5667-00329-1 by 107 Camilla on 2009 Sep 8 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 95 0 0 1 45 31 11 42 17 75 164 -1 0 34 26 2 56 55 - 0 3 49 3 35 36 96 0 0 1 10 29 11 42 28 76 167 -2 - 0 0 27 2 21 44 - 0 38 38 3 0 21 97 0 0 0 35 44 11 42 38 76 170 -3 - 0 35 3 1 46 51 - 1 13 9 2 25 23 98 0 0 0 1 18 11 42 49 77 175 -4 - 1 9 20 1 12 15 - 1 47 21 1 50 42 99 0 0 - 0 32 49 11 42 59 78 179 -5 - 1 43 18 0 37 58 - 2 21 14 1 16 20 100 0 0 - 1 6 36 11 43 9 78 184 -6 - 2 16 55 0 4 1 - 2 54 46 0 42 18 101 0 0 - 1 40 2 11 43 20 79 189 -8 - 2 50 10 - 0 29 35 - 3 27 56 0 8 36 102 0 0 - 2 13 5 11 43 30 79 195 -9 - 3 23 3 - 1 2 49 - 4 0 43 - 0 24 44 103 0 0 - 2 45 46 11 43 40 79 201 -10 - 3 55 33 - 1 35 40 - 4 33 7 - 0 57 41 104 0 0 - 3 18 3 11 43 51 79 207 -11 - 4 27 39 - 2 8 8 - 5 5 7 - 1 30 15 105 0 0 - 3 49 54 11 44 1 79 213 -12 - 4 59 19 - 2 40 11 - 5 36 41 - 2 2 24 106 0 0 - 4 21 21 11 44 11 79 219 -13 - 5 30 34 - 3 11 49 - 6 7 50 - 2 34 8 107 0 0 - 4 52 21 11 44 22 79 225 -14 - 6 1 23 - 3 43 1 - 6 38 32 - 3 5 26 108 0 0 - 5 22 54 11 44 32 78 230 -15 - 6 31 44 - 4 13 46 - 7 8 47 - 3 36 18 109 0 0 - 5 53 0 11 44 42 78 235 -16 - 7 1 38 - 4 44 3 - 7 38 35 - 4 6 42 110 0 0 - 6 22 37 11 44 52 77 239 -17 - 7 31 3 - 5 13 53 - 8 7 54 - 4 36 38 111 0 0 - 6 51 46 11 45 2 76 243 -18 - 8 0 0 - 5 43 14 - 8 36 44 - 5 6 5 112 0 0 - 7 20 25 11 45 12 76 246 -19 - 8 28 27 - 6 12 5 - 9 5 4 - 5 35 4 113 0 0 - 7 48 34 11 45 22 75 249 -20 - 8 56 24 - 6 40 27 - 9 32 55 - 6 3 32 114 0 0 - 8 16 14 11 45 31 74 252 -21 - 9 23 51 - 7 8 19 -10 0 16 - 6 31 31 115 0 0 - 8 43 22 11 45 41 73 254 -23 - 9 50 47 - 7 35 40 -10 27 5 - 6 58 58 116 0 0 - 9 10 0 11 45 51 72 256 -24 -10 17 13 - 8 2 30 -10 53 24 - 7 25 55 117 0 0 - 9 36 6 11 46 0 71 258 -25 -10 43 7 - 8 28 48 -11 19 11 - 7 52 20 118 0 0 -10 1 40 11 46 10 71 260 -26 -11 8 29 - 8 54 34 -11 44 27 - 8 18 13 119 0 0 -10 26 42 11 46 19 70 261 -27 -11 33 19 - 9 19 49 -12 9 10 - 8 43 34 120 0 0 -10 51 12 11 46 28 69 262 -28 -11 57 37 - 9 44 31 -12 33 22 - 9 8 23 121 0 0 -11 15 9 11 46 37 68 263 -29 -12 21 22 -10 8 40 -12 57 1 - 9 32 38 122 0 0 -11 38 34 11 46 46 67 264 -30 -12 44 35 -10 32 16 -13 20 7 - 9 56 21 123 0 0 -12 1 25 11 46 55 66 265 -31 -13 7 14 -10 55 20 -13 42 41 -10 19 31 124 0 0 -12 23 43 11 47 4 65 266 -32 -13 29 21 -11 17 50 -14 4 41 -10 42 7 125 0 0 -12 45 29 11 47 13 64 267 -33 -13 50 55 -11 39 46 -14 26 9 -11 4 10 126 0 0 -13 6 40 11 47 21 63 267 -34 -14 11 55 -12 1 9 -14 47 3 -11 25 39 127 0 0 -13 27 18 11 47 30 62 268 -35 -14 32 22 -12 21 59 -15 7 25 -11 46 35 128 0 0 -13 47 23 11 47 38 61 268 -36 -14 52 16 -12 42 14 -15 27 12 -12 6 57 129 0 0 -14 6 54 11 47 46 60 269 -37 -15 11 36 -13 1 56 -15 46 27 -12 26 44 130 0 0 -14 25 51 11 47 54 59 269 -38 -15 30 23 -13 21 4 -16 5 8 -12 45 58 131 0 0 -14 44 15 11 48 2 58 269 -39 -15 48 37 -13 39 38 -16 23 16 -13 4 37 132 0 0 -15 2 5 11 48 10 57 269 -40 -16 6 17 -13 57 38 -16 40 51 -13 22 43 133 0 0 -15 19 21 11 48 18 56 269 -41 -16 23 23 -14 15 4 -16 57 52 -13 40 14 134 0 0 -15 36 4 11 48 26 55 270 -42 -16 39 56 -14 31 56 -17 14 20 -13 57 12 135 0 0 -15 52 12 11 48 33 54 270 -43 -16 55 56 -14 48 14 -17 30 15 -14 13 35 136 0 0 -16 7 48 11 48 41 53 270 -43 -17 11 22 -15 3 59 -17 45 36 -14 29 24 137 0 0 -16 22 49 11 48 48 52 270 -44 -17 26 15 -15 19 9 -18 0 24 -14 44 40 138 0 0 -16 37 17 11 48 55 51 270 -45 -17 40 34 -15 33 46 -18 14 39 -14 59 21 139 0 0 -16 51 12 11 49 2 50 270 -46 -17 54 21 -15 47 48 -18 28 21 -15 13 28 140 0 0 -17 4 33 11 49 9 49 270 -47 -18 7 34 -16 1 18 -18 41 30 -15 27 2 141 0 0 -17 17 20 11 49 16 48 270 -48 -18 20 14 -16 14 13 -18 54 6 -15 40 1 142 0 0 -17 29 35 11 49 22 47 270 -49 -18 32 21 -16 26 35 -19 6 9 -15 52 27 143 0 0 -17 41 16 11 49 29 46 270 -50 -18 43 55 -16 38 23 -19 17 40 -16 4 19 144 0 0 -17 52 24 11 49 35 45 269 -51 -18 54 56 -16 49 38 -19 28 37 -16 15 38 145 0 0 -18 2 59 11 49 41 44 269 -52 -19 5 25 -17 0 20 -19 39 2 -16 26 23 146 0 0 -18 13 1 11 49 48 43 269 -53 -19 15 21 -17 10 28 -19 48 55 -16 36 35 147 0 0 -18 22 30 11 49 54 42 269 -54 -19 24 44 -17 20 3 -19 58 15 -16 46 13 148 0 0 -18 31 27 11 49 59 41 269 -54 -19 33 35 -17 29 5 -20 7 3 -16 55 18 149 0 0 -18 39 50 11 50 5 40 269 -55 -19 41 53 -17 37 34 -20 15 19 -17 3 50 150 0 0 -18 47 41 11 50 11 39 268 -56 -19 49 40 -17 45 30 -20 23 2 -17 11 48 151 0 0 -18 55 0 11 50 16 38 268 -57 -19 56 53 -17 52 53 -20 30 14 -17 19 14 152 0 0 -19 1 46 11 50 22 37 268 -58 -20 3 35 -17 59 43 -20 36 53 -17 26 7 153 0 0 -19 7 59 11 50 27 36 268 -59 -20 9 45 -18 6 0 -20 43 1 -17 32 26 154 0 0 -19 13 41 11 50 32 35 268 -60 -20 15 22 -18 11 45 -20 48 36 -17 38 13 155 0 0 -19 18 50 11 50 37 34 267 -61 -20 20 28 -18 16 58 -20 53 41 -17 43 28 156 0 0 -19 23 27 11 50 42 33 267 -61 -20 25 2 -18 21 38 -20 58 13 -17 48 9 157 0 0 -19 27 32 11 50 46 32 267 -62 -20 29 5 -18 25 45 -21 2 14 -17 52 18 158 0 0 -19 31 4 11 50 51 32 267 -63 -20 32 35 -18 29 21 -21 5 43 -17 55 55 159 0 0 -19 34 5 11 50 55 31 266 -64 -20 35 34 -18 32 24 -21 8 41 -17 58 59 160 0 0 -19 36 35 11 51 0 30 266 -65 -20 38 2 -18 34 55 -21 11 8 -18 1 31 161 0 0 -19 38 32 11 51 4 29 266 -65 -20 39 58 -18 36 54 -21 13 3 -18 3 30 162 0 0 -19 39 58 11 51 8 28 265 -66 -20 41 22 -18 38 20 -21 14 27 -18 4 58 163 0 0 -19 40 52 11 51 12 27 265 -67 -20 42 16 -18 39 15 -21 15 20 -18 5 53 164 0 0 -19 41 14 11 51 16 26 265 -68 -20 42 38 -18 39 38 -21 15 42 -18 6 16 165 0 0 -19 41 5 11 51 20 25 265 -69 -20 42 28 -18 39 29 -21 15 32 -18 6 7 166 0 0 -19 40 24 11 51 23 24 264 -69 -20 41 48 -18 38 48 -21 14 52 -18 5 26 167 0 0 -19 39 12 11 51 26 23 264 -70 -20 40 36 -18 37 35 -21 13 41 -18 4 13 168 0 0 -19 37 29 11 51 30 22 264 -71 -20 38 54 -18 35 51 -21 11 59 -18 2 28 169 0 0 -19 35 14 11 51 33 21 263 -71 -20 36 40 -18 33 35 -21 9 46 -18 0 12 170 0 0 -19 32 28 11 51 36 20 263 -72 -20 33 55 -18 30 47 -21 7 2 -17 57 23 171 0 0 -19 29 10 11 51 39 19 263 -73 -20 30 39 -18 27 28 -21 3 47 -17 54 3 172 0 0 -19 25 21 11 51 42 18 262 -73 -20 26 53 -18 23 37 -21 0 1 -17 50 11 173 0 0 -19 21 1 11 51 44 17 262 -74 -20 22 35 -18 19 15 -20 55 45 -17 45 48 174 0 0 -19 16 10 11 51 47 16 262 -74 -20 17 47 -18 14 21 -20 50 58 -17 40 52 175 0 0 -19 10 48 11 51 49 15 261 -75 -20 12 27 -18 8 56 -20 45 40 -17 35 25 176 0 0 -19 4 54 11 51 51 14 261 -75 -20 6 37 -18 2 59 -20 39 52 -17 29 27 177 0 0 -18 58 30 11 51 53 13 261 -76 -20 0 16 -17 56 31 -20 33 32 -17 22 57 178 0 0 -18 51 34 11 51 55 12 260 -76 -19 53 24 -17 49 31 -20 26 43 -17 15 55 179 0 0 -18 44 7 11 51 57 11 260 -77 -19 46 1 -17 42 0 -20 19 22 -17 8 22 180 0 0 -18 36 9 11 51 59 11 260 -77 -19 38 8 -17 33 58 -20 11 31 -17 0 17 -179 0 0 -18 27 41 11 52 0 10 260 -77 -19 29 44 -17 25 25 -20 3 9 -16 51 41 -178 0 0 -18 18 41 11 52 1 9 259 -77 -19 20 49 -17 16 20 -19 54 17 -16 42 34 -177 0 0 -18 9 10 11 52 3 8 259 -77 -19 11 23 -17 6 44 -19 44 54 -16 32 55 -176 0 0 -17 59 8 11 52 4 7 259 -77 -19 1 27 -16 56 37 -19 35 1 -16 22 45 -175 0 0 -17 48 35 11 52 5 6 258 -77 -18 51 0 -16 45 58 -19 24 37 -16 12 3 -174 0 0 -17 37 32 11 52 6 5 258 -77 -18 40 2 -16 34 48 -19 13 42 -16 0 50 -173 0 0 -17 25 57 11 52 6 4 258 -77 -18 28 34 -16 23 8 -19 2 17 -15 49 6 -172 0 0 -17 13 52 11 52 7 3 257 -77 -18 16 35 -16 10 56 -18 50 22 -15 36 51 -171 0 0 -17 1 16 11 52 7 2 257 -76 -18 4 6 -15 58 13 -18 37 56 -15 24 4 -170 0 0 -16 48 9 11 52 7 1 257 -76 -17 51 6 -15 44 59 -18 25 0 -15 10 47 Uncertainty in time = +/- 5 secs [Prediction of 2008 Mar 20.0] Data for the target star ------------------------ * name: TYC 5667-00329-1 * constellation : Serpens * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 17 29 55.7350 DE: -12 49 37.425 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .022, .022 ) * V mag [mag]: 11.1 * B mag [mag]: 12.8 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (107) Camilla approx. diameter [km]: 223 approx. diameter ["]: .089 distance from Earth [AU]: 3.46300 * orbital information: orbit source: Preston date of fit: 2008 Mar 20 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 891 number of rejected observations: 161 time covered by the observations: 1916 Apr 27 - 2008 Feb 18 1 sigma uncertainty ellipse (major, minor, PA): 0.015, 0.009, 93° remarks: * orbital elements for (107) Camilla : Mean anomaly = 151.34618166 deg Arg. of pericenter = 309.80349122 deg Long. of node = 173.11590460 deg Inclination = 10.04961218 deg Eccentricity = 0.07724227 Semimajor axis = 3.47661494 AU Perihelion dist = 3.20807330 AU Mag: H = 7.05, G = 0.08 Epoch of elements : MJD 55082.48900000 TDT (2009 Sep 08.489) ------ occelmnt file for Occult BEGIN ----------------------------------- 2009 Sep 8 107 Camilla 11h 43.8m UT 11.1 17 29 55.735-12 49 37.42TYC 5667-00329-1 12.8 13.6 223 17.7 3.463 1.095 -8.41 98.8498 -12.825 3.45 5.54 11.7306 0.08604 0.16578 6.30120 -3.31172 0.00574 -0.00043 2000 150.9677452009 9 6.00000309.803491173.115905 10.0496120.07724227 3.4766149 3.2080733 7.1 5.00.08 RATE 1.5204390 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.026 0.023 91 1.27 0.024 1 9 1235 54545.5020090908_0329-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Mar 20, 13:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org