IOTA/IOTA-ES occultation update for (14208) 1999 CR64 / TYC 5539-01063-1 event on 2008 Mar 02, 22:37 UT Visible from China, Russia Summary ------- On 2008 Mar 02 UT, the 18 km diameter asteroid (14208) 1999 CR64 will occult a 10.1 mag star in the constellation Virgo for observers along a path across China, Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 7.3 mag to 17.4 mag (the magnitude of the asteroid) for at most 2.1 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: 13 * date and approx. time of event: 2008 Mar 02, 22:29 - 2008 Mar 02, 22:45 UT * midpoint of event [JD]: 2454528.44247083 * magnitude of target star: 10.1 * magnitude drop [mag]: 7.3 * estimated maximum duration [s]: 2.1 * Moon: 24 % sunlit, 86° distance * Sun: 144° distance * rough path description: China, Russia The occultation path -------------------- * approximate projected width [km]: 27 * 1 sigma uncertainty interval [path widths]: +/- 5.10 * 1 sigma uncertainty interval [seconds]: +/- 14.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .093 +/- .045) * 1 sigma uncertainty ellipse (major, minor, PA): ( .093", .044", 98° ) * approx speed of asteroid's shadow [km/s]: 8.7510 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5539-01063-1 by 14208 1999 CR64 on 2008 Mar 02 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 ' " Longitude Longitude Longitude Longitude 42 9 35 79 0 0 22 45 12 0 169 -17 42 48 49 41 30 22 49 30 56 ... .. .. 43 8 44 78 0 0 22 45 12 1 170 -18 43 44 47 42 32 41 49 54 30 ... .. .. 44 4 23 77 0 0 22 45 11 2 171 -19 44 37 46 43 31 2 50 20 10 ... .. .. 44 57 22 76 0 0 22 45 10 3 172 -20 45 28 28 44 26 18 50 47 31 ... .. .. 45 48 15 75 0 0 22 45 9 4 173 -20 46 17 22 45 19 9 51 16 16 ... .. .. 46 37 28 74 0 0 22 45 7 5 174 -21 47 4 53 46 10 5 51 46 12 ... .. .. 47 25 23 73 0 0 22 45 5 6 174 -22 47 51 17 46 59 31 52 17 10 ... .. .. 48 12 16 72 0 0 22 45 3 7 175 -23 48 36 50 47 47 43 52 49 3 ... .. .. 48 58 19 71 0 0 22 45 0 8 176 -24 49 21 41 48 34 58 53 21 45 44 37 51 49 43 42 70 0 0 22 44 57 9 177 -24 50 6 1 49 21 25 53 55 12 45 35 10 50 28 35 69 0 0 22 44 54 11 177 -25 50 49 57 50 7 15 54 29 19 46 30 46 51 13 5 68 0 0 22 44 50 12 178 -26 51 33 35 50 52 37 55 4 6 47 24 56 51 57 17 67 0 0 22 44 46 13 179 -26 52 16 59 51 37 36 55 39 30 48 17 54 52 41 16 66 0 0 22 44 41 14 179 -27 53 0 16 52 22 18 56 15 28 49 9 52 53 25 8 65 0 0 22 44 36 15 180 -28 53 43 29 53 6 49 56 52 1 50 1 1 54 8 56 64 0 0 22 44 31 16 181 -28 54 26 41 53 51 12 57 29 8 50 51 28 54 52 43 63 0 0 22 44 26 17 182 -29 55 9 56 54 35 32 58 6 46 51 41 22 55 36 34 62 0 0 22 44 20 18 182 -30 55 53 16 55 19 53 58 44 58 52 30 50 56 20 29 61 0 0 22 44 14 19 183 -30 56 36 44 56 4 16 59 23 41 53 19 56 57 4 33 60 0 0 22 44 7 19 184 -31 57 20 22 56 48 45 60 2 57 54 8 46 57 48 47 59 0 0 22 44 0 20 185 -31 58 4 12 57 33 23 60 42 46 54 57 24 58 33 14 58 0 0 22 43 53 21 185 -32 58 48 17 58 18 12 61 23 7 55 45 56 59 17 56 57 0 0 22 43 45 22 186 -32 59 32 39 59 3 14 62 4 1 56 34 24 60 2 54 56 0 0 22 43 37 23 187 -32 60 17 19 59 48 31 62 45 30 57 22 53 60 48 12 55 0 0 22 43 29 24 188 -33 61 2 19 60 34 6 63 27 33 58 11 25 61 33 50 54 0 0 22 43 20 25 189 -33 61 47 41 61 20 1 64 10 11 59 0 4 62 19 51 53 0 0 22 43 11 26 190 -33 62 33 27 62 6 17 64 53 25 59 48 52 63 6 17 52 0 0 22 43 2 27 190 -34 63 19 39 62 52 56 65 37 16 60 37 52 63 53 9 51 0 0 22 42 52 28 191 -34 64 6 19 63 40 1 66 21 46 61 27 7 64 40 29 50 0 0 22 42 42 29 192 -34 64 53 27 64 27 33 67 6 55 62 16 39 65 28 20 49 0 0 22 42 32 30 193 -34 65 41 7 65 15 34 67 52 45 63 6 31 66 16 42 48 0 0 22 42 21 31 194 -35 66 29 19 66 4 6 68 39 16 63 56 46 67 5 39 47 0 0 22 42 10 31 195 -35 67 18 7 66 53 12 69 26 31 64 47 25 67 55 11 46 0 0 22 41 59 32 196 -35 68 7 31 67 42 53 70 14 32 65 38 32 68 45 22 45 0 0 22 41 47 33 197 -35 68 57 34 68 33 11 71 3 19 66 30 8 69 36 13 44 0 0 22 41 35 34 199 -35 69 48 18 69 24 9 71 52 55 67 22 16 70 27 47 43 0 0 22 41 22 34 200 -35 70 39 46 70 15 49 72 43 22 68 14 59 71 20 5 42 0 0 22 41 10 35 201 -35 71 31 59 71 8 13 73 34 42 69 8 19 72 13 11 41 0 0 22 40 57 36 202 -34 72 25 1 72 1 24 74 26 58 70 2 19 73 7 8 40 0 0 22 40 43 37 203 -34 73 18 53 72 55 24 75 20 12 70 57 1 74 1 57 39 0 0 22 40 29 37 205 -34 74 13 39 73 50 17 76 14 26 71 52 30 74 57 43 38 0 0 22 40 15 38 206 -34 75 9 22 74 46 5 77 9 45 72 48 47 75 54 27 37 0 0 22 40 1 38 207 -33 76 6 5 75 42 51 78 6 11 73 45 55 76 52 15 36 0 0 22 39 46 39 209 -33 77 3 51 76 40 40 79 3 48 74 43 59 77 51 9 35 0 0 22 39 31 39 210 -33 78 2 45 77 39 35 80 2 39 75 43 2 78 51 13 34 0 0 22 39 16 40 212 -32 79 2 49 78 39 39 81 2 50 76 43 7 79 52 33 33 0 0 22 39 0 40 213 -31 80 4 10 79 40 57 82 4 25 77 44 19 80 55 12 32 0 0 22 38 44 41 215 -31 81 6 51 80 43 35 83 7 29 78 46 43 81 59 17 31 0 0 22 38 28 41 217 -30 82 10 59 81 47 37 84 12 9 79 50 22 83 4 52 30 0 0 22 38 11 41 218 -30 83 16 38 82 53 9 85 18 30 80 55 23 84 12 5 29 0 0 22 37 54 41 220 -29 84 23 55 84 0 18 86 26 40 82 1 52 85 21 3 28 0 0 22 37 36 42 222 -28 85 32 58 85 9 10 87 36 47 83 9 54 86 31 53 27 0 0 22 37 18 42 223 -27 86 43 55 86 19 53 88 49 1 84 19 37 87 44 45 26 0 0 22 37 0 42 225 -26 87 56 55 87 32 38 90 3 31 85 31 9 88 59 49 25 0 0 22 36 42 42 227 -25 89 12 9 88 47 32 91 20 31 86 44 39 90 17 17 24 0 0 22 36 23 41 229 -24 90 29 48 90 4 49 92 40 14 88 0 16 91 37 22 23 0 0 22 36 4 41 231 -23 91 50 5 91 24 42 94 2 57 89 18 12 93 0 20 22 0 0 22 35 44 41 232 -22 93 13 18 92 47 25 95 28 59 90 38 41 94 26 30 21 0 0 22 35 24 40 234 -21 94 39 45 94 13 18 96 58 43 92 1 56 95 56 12 20 0 0 22 35 4 40 236 -19 96 9 48 95 42 40 98 32 36 93 28 17 97 29 54 19 0 0 22 34 43 39 238 -18 97 43 54 97 15 59 100 11 15 94 58 3 99 8 8 18 0 0 22 34 22 39 240 -17 99 22 35 98 53 46 101 55 21 96 31 40 100 51 33 17 0 0 22 34 0 38 241 -15 101 6 34 100 36 38 103 45 49 98 9 38 102 41 1 16 0 0 22 33 37 37 243 -13 102 56 42 102 25 27 105 43 55 99 52 34 104 37 37 15 0 0 22 33 14 36 245 -11 104 54 8 104 21 15 107 51 17 101 41 15 106 42 52 14 0 0 22 32 51 34 247 -9 107 0 25 106 25 29 110 10 22 103 36 43 Latitude Latitude Latitude Latitude 107 0 0 13 52 9 22 32 47 34 247 -9 14 0 11 13 44 8 15 23 35 12 23 36 108 0 0 13 25 19 22 32 36 33 248 -8 13 33 18 13 17 21 14 56 4 11 57 23 109 0 0 12 59 31 22 32 26 33 248 -7 13 7 27 12 51 37 14 29 39 11 32 10 110 0 0 12 34 45 22 32 15 32 249 -6 12 42 38 12 26 54 14 4 16 11 7 57 111 0 0 12 11 1 22 32 5 31 250 -5 12 18 51 12 3 13 13 39 58 10 44 44 112 0 0 11 48 18 22 31 55 30 250 -4 11 56 5 11 40 32 13 16 42 10 22 30 113 0 0 11 26 35 22 31 46 30 251 -3 11 34 20 11 18 52 12 54 29 10 1 16 114 0 0 11 5 54 22 31 36 29 251 -2 11 13 36 10 58 13 12 33 19 9 41 0 115 0 0 10 46 12 22 31 27 28 252 -1 10 53 52 10 38 34 12 13 10 9 21 44 116 0 0 10 27 31 22 31 18 27 252 0 10 35 8 10 19 54 11 54 3 9 3 26 117 0 0 10 9 49 22 31 10 26 253 1 10 17 24 10 2 15 11 35 58 8 46 6 118 0 0 9 53 7 22 31 1 26 253 2 10 0 40 9 45 35 11 18 54 8 29 44 119 0 0 9 37 24 22 30 53 25 254 3 9 44 56 9 29 54 11 2 50 8 14 20 120 0 0 9 22 41 22 30 46 24 254 3 9 30 11 9 15 12 10 47 48 7 59 54 121 0 0 9 8 57 22 30 38 23 254 4 9 16 25 9 1 29 10 33 46 7 46 26 122 0 0 8 56 11 22 30 31 22 255 5 9 3 38 8 48 45 10 20 45 7 33 55 123 0 0 8 44 25 22 30 24 21 255 6 8 51 51 8 37 0 10 8 44 7 22 22 124 0 0 8 33 37 22 30 17 21 255 7 8 41 2 8 26 13 9 57 44 7 11 46 125 0 0 8 23 48 22 30 11 20 256 8 8 31 12 8 16 25 9 47 43 7 2 7 126 0 0 8 14 57 22 30 5 19 256 9 8 22 21 8 7 36 9 38 43 6 53 26 127 0 0 8 7 6 22 29 59 18 256 10 8 14 28 7 59 44 9 30 43 6 45 42 128 0 0 8 0 13 22 29 53 17 256 11 8 7 34 7 52 52 9 23 43 6 38 55 129 0 0 7 54 18 22 29 48 16 257 12 8 1 39 7 46 58 9 17 43 6 33 6 130 0 0 7 49 22 22 29 43 15 257 13 7 56 43 7 42 3 9 12 43 6 28 14 131 0 0 7 45 26 22 29 38 14 257 14 7 52 46 7 38 6 9 8 43 6 24 20 132 0 0 7 42 28 22 29 34 13 257 15 7 49 48 7 35 8 9 5 44 6 21 23 133 0 0 7 40 29 22 29 30 12 257 16 7 47 50 7 33 9 9 3 46 6 19 24 134 0 0 7 39 29 22 29 26 11 258 17 7 46 50 7 32 10 9 2 48 6 18 23 135 0 0 7 39 29 22 29 23 10 258 18 7 46 50 7 32 9 9 2 51 6 18 20 136 0 0 7 40 29 22 29 19 9 258 19 7 47 50 7 33 9 9 3 56 6 19 15 137 0 0 7 42 29 22 29 16 8 258 20 7 49 50 7 35 8 9 6 1 6 21 9 138 0 0 7 45 28 22 29 14 7 258 21 7 52 51 7 38 7 9 9 9 .. .. .. 139 0 0 7 49 29 22 29 12 6 258 22 7 56 52 7 42 6 9 13 19 .. .. .. 140 0 0 7 54 30 22 29 10 5 259 23 8 1 54 7 47 7 9 18 31 .. .. .. 141 0 0 8 0 33 22 29 8 5 259 24 8 7 58 7 53 8 9 24 46 .. .. .. 142 0 0 8 7 37 22 29 7 4 259 25 8 15 3 8 0 11 9 32 4 .. .. .. 143 0 0 8 15 43 22 29 6 3 259 26 8 23 11 8 8 16 9 40 26 .. .. .. 144 0 0 8 24 52 22 29 5 2 259 27 8 32 22 8 17 24 9 49 53 .. .. .. 145 0 0 8 35 4 22 29 5 1 259 28 8 42 36 .. .. .. 10 0 24 .. .. .. Data for the target star ------------------------ * name: TYC 5539-01063-1 * constellation : Virgo * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 13 01 31.1702 DE: -10 31 34.078 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .020, .020 ) * V mag [mag]: 10.1 * B mag [mag]: 10.7 * Apparent position with proper motion RA(deg): 195.4934459403 DE(deg): -10.5732207504 * Equation of equinoxes (radians) : 0.000045079818341 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (14208) 1999 CR64 approx. diameter [km]: 18 approx. diameter ["]: .012 distance from Earth [AU]: 2.05700 * orbital information: orbit source: Preston date of fit: 2008 Jan 19 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 630 number of rejected observations: 17 time covered by the observations: 1992 Jul 02 - 2007 May 11 1 sigma uncertainty ellipse (major, minor, PA): 0.091, 0.039, 98° remarks: * orbital elements for (14208) 1999 CR64 : Mean anomaly = 225.54114309 deg Arg. of pericenter = 134.46097263 deg Long. of node = 198.25567064 deg Inclination = 12.78077307 deg Eccentricity = 0.16552685 Semimajor axis = 2.58877534 AU Perihelion dist = 2.16026351 AU Mag: H = 12.82, G = 0.15 Epoch of elements : MJD 54527.94300000 TDT (2008 Mar 02.943) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Mar 02 14208 1999 CR64 22h 37.2m UT 10.1 13 1 31.170-10 31 34.08TYC 5539-01063-1 10.7 17.4 18 2.1 2.057 -1.107 13.43 55.007 -10.529 203.71 -6.78 22.6193 .47474 .57531 -3.81314 3.13953 -0.00308 0.00161 2000 223.6616222008 224.00000134.460973198.255671 12.7807730.165526852.588775342.1602635112.85 0.15 RATE 2.3662600 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.093 0.044 97.6 6.100 0.062 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Jan 21, 19:14 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org