IOTA/IOTA-ES occultation update for (1843) Jarmila / HIP 86110 event on 2008 May 15, 06:55 UT Visible from Caribbean, USA Summary ------- On 2008 May 15 UT, the 26 km diameter asteroid (1843) Jarmila will occult a 9.7 mag star in the constellation Ophiuchus for observers along a path across Caribbean, USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.2 mag to 14.9 mag (the magnitude of the asteroid) for at most 4.9 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: 33 * date and approx. time of event: 2008 May 15, 06:43 - 2008 May 15, 07:10 UT * magnitude of target star: 9.7 * magnitude drop [mag]: 5.2 * estimated maximum duration [s]: 4.9 * Moon: 80 % sunlit, 84° distance * Sun: 150° distance * rough path description: Caribbean, USA The occultation path -------------------- * approximate projected width [km]: 34 * 1 sigma uncertainty interval [path widths]: +/- 1.99 * 1 sigma uncertainty interval [seconds]: +/- 10.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .068 +/- .045) * 1 sigma uncertainty ellipse (major, minor, PA): ( .069", .044", 84° ) * approx speed of asteroid's shadow [km/s]: 5.2935 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of HIP 86110 by 1843 Jarmila on 2008 May 15 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 -118 0 0 55 12 4 7 10 21 1 144 -16 55 28 14 54 56 0 .. .. .. .. .. .. -117 0 0 54 25 1 7 10 21 2 145 -16 54 41 10 54 8 58 55 46 36 .. .. .. -116 0 0 53 37 13 7 10 20 3 146 -17 53 53 20 53 21 12 54 58 38 .. .. .. -115 0 0 52 48 43 7 10 18 4 147 -18 53 4 47 52 32 45 54 9 55 51 30 16 -114 0 0 51 59 34 7 10 16 5 147 -19 52 15 35 51 43 39 53 20 30 50 41 22 -113 0 0 51 9 49 7 10 14 6 148 -20 51 25 47 50 53 58 52 30 26 49 51 56 -112 0 0 50 19 32 7 10 11 7 149 -21 50 35 25 50 3 45 51 39 46 49 1 59 -111 0 0 49 28 46 7 10 7 8 150 -22 49 44 34 49 13 4 50 48 35 48 11 35 -110 0 0 48 37 33 7 10 3 9 150 -23 48 53 17 48 21 57 49 56 56 47 20 48 -109 0 0 47 45 59 7 9 58 10 151 -23 48 1 36 47 30 28 49 4 52 46 29 40 -108 0 0 46 54 5 7 9 52 11 152 -24 47 9 37 46 38 40 48 12 27 45 38 15 -107 0 0 46 1 56 7 9 46 12 153 -25 46 17 21 45 46 37 47 19 45 44 46 36 -106 0 0 45 9 35 7 9 40 13 153 -26 45 24 53 44 54 23 46 26 48 43 54 47 -105 0 0 44 17 5 7 9 32 14 154 -27 44 32 16 44 2 0 45 33 42 43 2 51 -104 0 0 43 24 30 7 9 25 15 155 -28 43 39 34 43 9 32 44 40 29 42 10 50 -103 0 0 42 31 53 7 9 16 16 156 -28 42 46 49 42 17 2 43 47 14 41 18 49 -102 0 0 41 39 17 7 9 7 18 156 -29 41 54 5 41 24 33 42 53 58 40 26 49 -101 0 0 40 46 45 7 8 57 19 157 -30 41 1 26 40 32 9 42 0 45 39 34 54 -100 0 0 39 54 20 7 8 47 20 158 -31 40 8 53 39 39 52 41 7 40 38 43 7 - 99 0 0 39 2 6 7 8 36 21 159 -32 39 16 30 38 47 46 40 14 44 37 51 31 - 98 0 0 38 10 4 7 8 25 22 159 -32 38 24 20 37 55 52 39 22 0 37 0 8 - 97 0 0 37 18 17 7 8 13 23 160 -33 37 32 26 37 4 13 38 29 31 36 9 0 - 96 0 0 36 26 48 7 8 0 24 161 -34 36 40 49 36 12 53 37 37 21 35 18 10 - 95 0 0 35 35 40 7 7 47 25 162 -34 35 49 32 35 21 52 36 45 30 34 27 40 - 94 0 0 34 44 54 7 7 33 26 162 -35 34 58 38 34 31 14 35 54 2 33 37 32 - 93 0 0 33 54 32 7 7 19 27 163 -35 34 8 8 33 41 0 35 2 59 32 47 49 - 92 0 0 33 4 37 7 7 4 28 164 -36 33 18 5 32 51 13 34 12 23 31 58 32 - 91 0 0 32 15 9 7 6 49 29 165 -36 32 28 30 32 1 53 33 22 15 31 9 43 - 90 0 0 31 26 12 7 6 34 30 165 -37 31 39 24 31 13 4 32 32 37 30 21 23 - 89 0 0 30 37 46 7 6 18 31 166 -37 30 50 51 30 24 45 31 43 31 29 33 34 - 88 0 0 29 49 53 7 6 1 32 167 -38 30 2 50 29 37 0 30 54 59 28 46 17 - 87 0 0 29 2 35 7 5 44 33 168 -38 29 15 24 28 49 49 30 7 2 27 59 34 - 86 0 0 28 15 51 7 5 27 34 169 -39 28 28 33 28 3 13 29 19 41 27 13 27 - 85 0 0 27 29 45 7 5 9 35 170 -39 27 42 20 27 17 13 28 32 57 26 27 55 - 84 0 0 26 44 16 7 4 52 36 171 -39 26 56 44 26 31 52 27 46 52 25 43 0 - 83 0 0 25 59 26 7 4 33 37 172 -39 26 11 46 25 47 8 27 1 26 24 58 43 - 82 0 0 25 15 15 7 4 15 37 173 -40 25 27 29 25 3 4 26 16 41 24 15 5 - 81 0 0 24 31 45 7 3 56 38 173 -40 24 43 52 24 19 40 25 32 36 23 32 7 - 80 0 0 23 48 55 7 3 37 39 174 -40 24 0 56 23 36 57 24 49 13 22 49 49 - 79 0 0 23 6 47 7 3 18 40 175 -40 23 18 41 22 54 56 24 6 33 22 8 11 - 78 0 0 22 25 22 7 2 58 41 177 -40 22 37 10 22 13 36 23 24 35 21 27 16 - 77 0 0 21 44 39 7 2 38 41 178 -40 21 56 21 21 32 59 22 43 21 20 47 2 - 76 0 0 21 4 39 7 2 18 42 179 -40 21 16 15 20 53 6 22 2 51 20 7 31 - 75 0 0 20 25 23 7 1 58 43 180 -40 20 36 53 20 13 55 21 23 6 19 28 42 - 74 0 0 19 46 50 7 1 38 43 181 -40 19 58 15 19 35 28 20 44 5 18 50 37 - 73 0 0 19 9 2 7 1 17 44 182 -40 19 20 21 18 57 46 20 5 49 18 13 15 - 72 0 0 18 31 59 7 0 57 44 183 -40 18 43 13 18 20 47 19 28 18 17 36 38 - 71 0 0 17 55 40 7 0 36 45 184 -40 18 6 48 17 44 34 18 51 33 17 0 44 - 70 0 0 17 20 6 7 0 15 45 186 -39 17 31 9 17 9 5 18 15 33 16 25 34 - 69 0 0 16 45 17 6 59 55 46 187 -39 16 56 16 16 34 20 17 40 19 15 51 9 - 68 0 0 16 11 13 6 59 34 46 188 -39 16 22 7 16 0 21 17 5 51 15 17 28 - 67 0 0 15 37 54 6 59 13 47 189 -39 15 48 44 15 27 7 16 32 9 14 44 31 - 66 0 0 15 5 21 6 58 52 47 191 -38 15 16 6 14 54 38 15 59 13 14 12 20 - 65 0 0 14 33 33 6 58 31 48 192 -38 14 44 14 14 22 55 15 27 3 13 40 53 - 64 0 0 14 2 31 6 58 10 48 193 -38 14 13 7 13 51 56 14 55 39 13 10 11 - 63 0 0 13 32 14 6 57 49 48 194 -37 13 42 46 13 21 43 14 25 1 12 40 13 - 62 0 0 13 2 42 6 57 28 48 196 -37 13 13 10 12 52 15 13 55 9 12 11 0 - 61 0 0 12 33 55 6 57 7 49 197 -36 12 44 20 12 23 33 13 26 4 11 42 32 - 60 0 0 12 5 54 6 56 46 49 198 -36 12 16 15 11 55 35 12 57 44 11 14 49 - 59 0 0 11 38 38 6 56 25 49 200 -35 11 48 56 11 28 23 12 30 10 10 47 51 - 58 0 0 11 12 8 6 56 4 49 201 -35 11 22 22 11 1 56 12 3 22 10 21 37 - 57 0 0 10 46 22 6 55 43 49 202 -34 10 56 33 10 36 14 11 37 20 9 56 7 - 56 0 0 10 21 22 6 55 22 49 204 -34 10 31 29 10 11 16 11 12 3 9 31 22 - 55 0 0 9 57 6 6 55 1 49 205 -33 10 7 11 9 47 4 10 47 32 9 7 22 - 54 0 0 9 33 36 6 54 41 49 206 -33 9 43 37 9 23 36 10 23 46 8 44 6 - 53 0 0 9 10 50 6 54 20 49 207 -32 9 20 49 9 0 54 10 0 46 8 21 34 - 52 0 0 8 48 49 6 54 0 49 209 -31 8 58 45 8 38 55 9 38 31 7 59 47 - 51 0 0 8 27 33 6 53 39 49 210 -31 8 37 26 8 17 42 9 17 2 7 38 43 - 50 0 0 8 7 1 6 53 19 49 211 -30 8 16 52 7 57 12 8 56 17 7 18 24 - 49 0 0 7 47 14 6 52 59 48 212 -29 7 57 2 7 37 28 8 36 18 6 58 48 - 48 0 0 7 28 11 6 52 39 48 214 -29 7 37 57 7 18 27 8 17 3 6 39 56 - 47 0 0 7 9 53 6 52 19 48 215 -28 7 19 36 7 0 11 7 58 33 6 21 48 - 46 0 0 6 52 18 6 52 0 48 216 -27 7 2 0 6 42 38 7 40 48 6 4 24 - 45 0 0 6 35 28 6 51 40 47 217 -27 6 45 7 6 25 50 7 23 48 5 47 44 - 44 0 0 6 19 22 6 51 21 47 218 -26 6 28 59 6 9 46 7 7 32 5 31 47 - 43 0 0 6 4 0 6 51 1 47 219 -25 6 13 35 5 54 25 6 52 1 5 16 33 - 42 0 0 5 49 21 6 50 42 46 220 -25 5 58 55 5 39 49 6 37 14 5 2 3 - 41 0 0 5 35 27 6 50 23 46 221 -24 5 44 59 5 25 56 6 23 12 4 48 17 - 40 0 0 5 22 16 6 50 5 45 222 -23 5 31 47 5 12 47 6 9 54 4 35 13 - 39 0 0 5 9 50 6 49 46 45 223 -22 5 19 19 5 0 21 5 57 20 4 22 53 - 38 0 0 4 58 7 6 49 28 44 224 -21 5 7 35 4 48 40 5 45 30 4 11 17 - 37 0 0 4 47 7 6 49 10 44 224 -21 4 56 34 4 37 41 5 34 25 4 0 23 - 36 0 0 4 36 52 6 48 52 43 225 -20 4 46 18 4 27 27 5 24 4 3 50 13 - 35 0 0 4 27 20 6 48 34 43 226 -19 4 36 45 4 17 56 5 14 27 3 40 46 - 34 0 0 4 18 31 6 48 16 42 227 -18 4 27 55 4 9 9 5 5 34 3 32 2 - 33 0 0 4 10 27 6 47 59 42 228 -17 4 19 50 4 1 5 4 57 25 3 24 1 - 32 0 0 4 3 6 6 47 42 41 228 -17 4 12 29 3 53 45 4 50 1 3 16 44 - 31 0 0 3 56 29 6 47 25 40 229 -16 4 5 51 3 47 8 4 43 21 3 10 10 - 30 0 0 3 50 36 6 47 8 40 230 -15 3 59 57 3 41 16 4 37 25 3 4 19 - 29 0 0 3 45 26 6 46 52 39 230 -14 3 54 47 3 36 7 4 32 13 2 59 12 - 28 0 0 3 41 1 6 46 35 38 231 -13 3 50 22 3 31 42 4 27 46 2 54 48 - 27 0 0 3 37 19 6 46 19 38 231 -12 3 46 40 3 28 0 4 24 4 2 51 8 - 26 0 0 3 34 22 6 46 3 37 232 -12 3 43 42 3 25 3 4 21 6 2 48 11 - 25 0 0 3 32 9 6 45 48 36 232 -11 3 41 29 3 22 50 4 18 52 2 45 58 - 24 0 0 3 30 40 6 45 33 36 233 -10 3 40 0 3 21 21 4 17 24 2 44 29 - 23 0 0 3 29 56 6 45 18 35 233 -9 3 39 16 3 20 36 4 16 40 2 43 44 - 22 0 0 3 29 56 6 45 3 34 234 -8 3 39 17 3 20 36 4 16 42 2 43 42 - 21 0 0 3 30 41 6 44 48 33 234 -7 3 40 2 3 21 21 4 17 29 2 44 26 - 20 0 0 3 32 11 6 44 34 33 235 -6 3 41 32 3 22 50 4 19 1 2 45 53 - 19 0 0 3 34 26 6 44 20 32 235 -5 3 43 48 3 25 5 4 21 19 2 48 5 - 18 0 0 3 37 26 6 44 7 31 235 -5 3 46 49 3 28 4 4 24 23 2 51 3 - 17 0 0 3 41 12 6 43 53 30 236 -4 3 50 35 3 31 49 4 28 12 2 54 45 - 16 0 0 3 45 43 6 43 40 29 236 -3 3 55 8 3 36 20 4 32 48 2 59 12 - 15 0 0 3 51 1 6 43 27 29 236 -2 4 0 26 3 41 37 4 38 11 3 4 25 - 14 0 0 3 57 5 6 43 15 28 237 -1 4 6 31 3 47 40 4 44 20 3 10 23 Uncertainty in time = +/- 13 secs [Prediction of 2008 May 8.0] Data for the target star ------------------------ * name: HIP 86110 * constellation : Ophiuchus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 17 35 51.8390 DE: -27 04 03.186 * position source: mpos:UCAC2 pm:UCAC2 plx:HIP * standard error: RA,DE ["]: ( .019, .019 ) * V mag [mag]: 9.7 * B mag [mag]: 10.7 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1843) Jarmila approx. diameter [km]: 26 approx. diameter ["]: .026 distance from Earth [AU]: 1.37200 * orbital information: orbit source: Preston date of fit: 2008 May 07 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 932 number of rejected observations: 21 time covered by the observations: 1935 Aug 29 - 2008 Apr 14 1 sigma uncertainty ellipse (major, minor, PA): 0.066, 0.040, 83° remarks: * orbital elements for (1843) Jarmila : Mean anomaly = 326.10978768 deg Arg. of pericenter = 31.80734106 deg Long. of node = 267.16085884 deg Inclination = 8.43531841 deg Eccentricity = 0.17243967 Semimajor axis = 2.65164618 AU Perihelion dist = 2.19439719 AU Mag: H = 11.72, G = 0.15 Epoch of elements : MJD 54601.28800000 TDT (2008 May 15.288) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 May 15 1843 Jarmila 6h 55.2m UT 9.7 17 35 51.839-27 4 3.19HIP 86110 10.7 14.9 26 4.9 1.372 -1.281 8.66 -73.2184 -27.069 75.29 18.98 6.9204 0.29592 0.58373 -2.66554 1.34972 -0.00264 0.00042 2000 325.8157892008 514.00000 31.807341267.160859 8.4353180.17243967 2.6516462 2.194397211.6 5.00.15 RATE 2.2826040 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.069 0.044 84 2.99 0.052 0 54594.5020080515__86110 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 May 08, 03:20 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org