IOTA/IOTA-ES occultation update for (242) Kriemhild / TYC 6169-01298-1 event on 2008 Jan 01, 22:18 UT Visible from Russia Summary ------- On 2008 Jan 01 UT, the 39 km diameter asteroid (242) Kriemhild will occult a 8.0 mag star in the constellation Libra for observers along a path across Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 6.9 mag to 14.9 mag (the magnitude of the asteroid) for at most 1.1 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: 46 * date and approx. time of event: 2008 Jan 01, 22:17 - 2008 Jan 01, 22:20 UT * midpoint of event [JD]: 2454467.4298375 * magnitude of target star: 8.0 * magnitude drop [mag]: 6.9 * estimated maximum duration [s]: 1.1 * Moon: 35 % sunlit, 22° distance * Sun: 51° distance * rough path description: Russia The occultation path -------------------- * approximate projected width [km]: 70 * 1 sigma uncertainty interval [path widths]: +/- 1.39 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .022 +/- .022) * 1 sigma uncertainty ellipse (major, minor, PA): ( .022", .022", 92° ) * approx speed of asteroid's shadow [km/s]: 35.5672 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6169-01298-1 by 242 Kriemhild on 2008 Jan 01 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 95 15 17 61 0 0 22 17 19 0 126 -30 ... .. .. 96 21 43 ... .. .. 99 26 54 98 2 9 60 0 0 22 17 19 2 128 -29 96 57 36 99 6 48 ... .. .. 102 7 19 Latitude Latitude Latitude Latitude 99 0 0 59 38 51 22 17 19 2 129 -28 59 15 30 60 2 30 .. .. .. 61 9 56 100 0 0 59 16 44 22 17 19 3 130 -28 58 53 25 59 40 22 .. .. .. 60 47 43 101 0 0 58 54 28 22 17 20 4 131 -27 58 31 10 59 18 3 .. .. .. 60 25 20 102 0 0 58 32 2 22 17 20 4 132 -27 58 8 46 58 55 36 .. .. .. 60 2 46 103 0 0 58 9 27 22 17 20 5 133 -26 57 46 13 58 32 59 .. .. .. 59 40 3 104 0 0 57 46 45 22 17 20 6 134 -26 57 23 33 58 10 14 56 20 31 59 17 11 105 0 0 57 23 55 22 17 21 6 134 -25 57 0 46 57 47 22 55 57 50 58 54 11 106 0 0 57 0 59 22 17 21 7 135 -25 56 37 52 57 24 23 55 35 3 58 31 3 107 0 0 56 37 57 22 17 22 7 136 -24 56 14 53 57 1 17 55 12 11 58 7 50 108 0 0 56 14 49 22 17 22 8 137 -24 55 51 49 56 38 7 54 49 15 57 44 30 109 0 0 55 51 38 22 17 23 9 138 -23 55 28 40 56 14 53 54 26 15 57 21 6 110 0 0 55 28 23 22 17 23 9 139 -22 55 5 29 55 51 34 54 3 12 56 57 37 111 0 0 55 5 6 22 17 24 10 140 -22 54 42 15 55 28 13 53 40 7 56 34 5 112 0 0 54 41 46 22 17 25 11 140 -21 54 18 59 55 4 50 53 17 0 56 10 31 113 0 0 54 18 26 22 17 26 11 141 -20 53 55 42 54 41 26 52 53 53 55 46 55 114 0 0 53 55 5 22 17 26 12 142 -20 53 32 25 54 18 1 52 30 46 55 23 18 115 0 0 53 31 45 22 17 27 13 143 -19 53 9 9 53 54 37 52 7 40 54 59 42 116 0 0 53 8 26 22 17 28 13 144 -18 52 45 54 53 31 14 51 44 35 54 36 6 117 0 0 52 45 9 22 17 29 14 145 -18 52 22 41 53 7 53 51 21 34 54 12 33 118 0 0 52 21 55 22 17 30 15 146 -17 51 59 32 52 44 35 50 58 35 53 49 1 119 0 0 51 58 46 22 17 31 15 146 -16 51 36 26 52 21 20 50 35 41 53 25 34 120 0 0 51 35 41 22 17 32 16 147 -16 51 13 26 51 58 11 50 12 52 53 2 11 121 0 0 51 12 41 22 17 34 17 148 -15 50 50 31 51 35 7 49 50 8 52 38 53 122 0 0 50 49 48 22 17 35 17 149 -14 50 27 42 51 12 9 49 27 31 52 15 41 123 0 0 50 27 1 22 17 36 18 150 -13 50 5 0 50 49 18 49 5 1 51 52 36 124 0 0 50 4 23 22 17 37 19 151 -13 49 42 26 50 26 35 48 42 40 51 29 39 125 0 0 49 41 54 22 17 39 19 152 -12 49 20 1 50 4 0 48 20 27 51 6 50 126 0 0 49 19 33 22 17 40 20 153 -11 48 57 46 49 41 35 47 58 23 50 44 11 127 0 0 48 57 24 22 17 42 21 154 -11 48 35 41 49 19 21 47 36 31 50 21 42 128 0 0 48 35 25 22 17 43 21 155 -10 48 13 47 48 57 17 47 14 49 49 59 24 129 0 0 48 13 38 22 17 45 22 155 -9 47 52 4 48 35 25 46 53 19 49 37 17 130 0 0 47 52 3 22 17 46 23 156 -8 47 30 34 48 13 45 46 32 1 49 15 23 131 0 0 47 30 42 22 17 48 23 157 -7 47 9 18 47 52 19 46 10 57 48 53 43 132 0 0 47 9 34 22 17 50 24 158 -7 46 48 15 47 31 7 45 50 6 48 32 16 133 0 0 46 48 42 22 17 52 24 159 -6 46 27 27 47 10 10 45 29 30 48 11 5 134 0 0 46 28 4 22 17 53 25 160 -5 46 6 54 46 49 27 45 9 10 47 50 8 135 0 0 46 7 43 22 17 55 25 161 -4 45 46 38 46 29 1 44 49 5 47 29 28 136 0 0 45 47 38 22 17 57 26 162 -4 45 26 37 46 8 52 44 29 17 47 9 5 137 0 0 45 27 51 22 17 59 26 163 -3 45 6 54 45 49 0 44 9 46 46 48 59 138 0 0 45 8 21 22 18 1 27 164 -2 44 47 29 45 29 25 43 50 33 46 29 11 139 0 0 44 49 10 22 18 3 27 165 -1 44 28 23 45 10 10 43 31 38 46 9 42 140 0 0 44 30 18 22 18 5 28 166 0 44 9 35 44 51 13 43 13 2 45 50 32 141 0 0 44 11 46 22 18 7 28 167 0 43 51 7 44 32 37 42 54 45 45 31 42 142 0 0 43 53 34 22 18 9 29 168 1 43 32 59 44 14 20 42 36 49 45 13 13 143 0 0 43 35 42 22 18 12 29 169 2 43 15 12 43 56 25 42 19 13 44 55 4 144 0 0 43 18 13 22 18 14 30 171 3 42 57 47 43 38 50 42 1 58 44 37 18 145 0 0 43 1 4 22 18 16 30 172 3 42 40 42 43 21 38 41 45 4 44 19 53 146 0 0 42 44 18 22 18 18 30 173 4 42 24 0 43 4 48 41 28 33 44 2 51 147 0 0 42 27 55 22 18 21 31 174 5 42 7 41 42 48 21 41 12 24 43 46 12 148 0 0 42 11 55 22 18 23 31 175 6 41 51 45 42 32 17 40 56 38 43 29 57 149 0 0 41 56 19 22 18 25 31 176 6 41 36 12 42 16 37 40 41 15 43 14 5 150 0 0 41 41 7 22 18 28 32 177 7 41 21 4 42 1 21 40 26 16 42 58 38 151 0 0 41 26 19 22 18 30 32 178 8 41 6 20 41 46 29 40 11 41 42 43 36 152 0 0 41 11 56 22 18 32 32 179 9 40 52 0 41 32 3 39 57 31 42 28 59 153 0 0 40 57 58 22 18 35 33 181 9 40 38 6 41 18 2 39 43 45 42 14 48 154 0 0 40 44 26 22 18 37 33 182 10 40 24 37 41 4 26 39 30 25 42 1 3 155 0 0 40 31 20 22 18 40 33 183 11 40 11 34 40 51 17 39 17 30 41 47 44 156 0 0 40 18 40 22 18 42 33 184 11 39 58 57 40 38 34 39 5 1 41 34 51 157 0 0 40 6 26 22 18 45 33 185 12 39 46 46 40 26 17 38 52 59 41 22 26 158 0 0 39 54 40 22 18 47 33 186 13 39 35 3 40 14 28 38 41 22 41 10 28 159 0 0 39 43 20 22 18 50 33 188 14 39 23 46 40 3 5 38 30 13 40 58 57 160 0 0 39 32 28 22 18 52 34 189 14 39 12 56 39 52 11 38 19 30 40 47 55 161 0 0 39 22 4 22 18 55 34 190 15 39 2 35 39 41 44 38 9 15 40 37 20 162 0 0 39 12 7 22 18 57 34 191 15 38 52 40 39 31 45 37 59 27 40 27 14 163 0 0 39 2 39 22 19 0 34 192 16 38 43 14 39 22 14 37 50 7 40 17 36 164 0 0 38 53 39 22 19 2 34 193 17 38 34 16 39 13 11 37 41 15 40 8 27 165 0 0 38 45 7 22 19 5 33 195 17 38 25 47 39 4 38 37 32 51 39 59 47 166 0 0 38 37 4 22 19 7 33 196 18 38 17 46 38 56 33 37 24 56 39 51 36 167 0 0 38 29 30 22 19 10 33 197 19 38 10 14 38 48 57 37 17 28 39 43 55 168 0 0 38 22 25 22 19 12 33 198 19 38 3 10 38 41 50 37 10 30 39 36 43 169 0 0 38 15 49 22 19 15 33 199 20 37 56 36 38 35 12 37 4 0 39 30 0 170 0 0 38 9 43 22 19 17 33 200 20 37 50 31 38 29 4 36 57 59 39 23 48 171 0 0 38 4 6 22 19 19 33 201 21 37 44 55 38 23 26 36 52 27 39 18 5 172 0 0 37 58 58 22 19 22 32 203 21 37 39 49 38 18 17 36 47 24 39 12 52 173 0 0 37 54 20 22 19 24 32 204 22 37 35 12 38 13 38 36 42 50 39 8 10 174 0 0 37 50 12 22 19 27 32 205 22 37 31 5 38 9 29 36 38 46 39 3 57 175 0 0 37 46 34 22 19 29 32 206 23 37 27 28 38 5 49 36 35 11 39 0 15 176 0 0 37 43 25 22 19 31 31 207 23 37 24 20 38 2 40 36 32 5 38 57 4 177 0 0 37 40 47 22 19 34 31 208 24 37 21 42 38 0 1 36 29 29 38 54 22 178 0 0 37 38 38 22 19 36 31 209 24 37 19 34 37 57 51 36 27 22 38 52 11 179 0 0 37 36 59 22 19 38 30 210 24 37 17 56 37 56 12 36 25 45 38 50 31 180 0 0 37 35 51 22 19 41 30 211 25 37 16 48 37 55 3 36 24 38 38 49 21 -179 0 0 37 35 12 22 19 43 29 212 25 37 16 9 37 54 25 36 24 0 38 48 42 -178 0 0 37 35 4 22 19 45 29 213 26 37 16 1 37 54 16 36 23 52 38 48 33 -177 0 0 37 35 25 22 19 47 29 214 26 37 16 22 37 54 38 36 24 13 38 48 55 -176 0 0 37 36 17 22 19 50 28 215 26 37 17 14 37 55 29 36 25 4 38 49 47 -175 0 0 37 37 38 22 19 52 28 216 26 37 18 35 37 56 51 36 26 25 38 51 9 -174 0 0 37 39 30 22 19 54 27 217 27 37 20 26 37 58 43 36 28 15 38 53 3 -173 0 0 37 41 51 22 19 56 27 218 27 37 22 47 38 1 5 36 30 34 38 55 26 -172 0 0 37 44 42 22 19 58 26 219 27 37 25 38 38 3 57 36 33 23 38 58 20 -171 0 0 37 48 3 22 20 0 26 220 27 37 28 58 38 7 19 36 36 42 39 1 44 -170 0 0 37 51 54 22 20 2 25 221 27 37 32 48 38 11 10 36 40 29 39 5 38 -169 0 0 37 56 14 22 20 4 24 221 28 37 37 7 38 15 32 36 44 46 39 10 2 -168 0 0 38 1 4 22 20 5 24 222 28 37 41 56 38 20 22 36 49 31 39 14 56 -167 0 0 38 6 23 22 20 7 23 223 28 37 47 13 38 25 43 36 54 46 39 20 20 -166 0 0 38 12 12 22 20 9 23 224 28 37 53 1 38 31 33 37 0 30 39 26 14 -165 0 0 38 18 29 22 20 11 22 225 28 37 59 17 38 37 52 37 6 42 39 32 38 -164 0 0 38 25 16 22 20 12 21 226 28 38 6 2 38 44 40 37 13 23 39 39 30 -163 0 0 38 32 31 22 20 14 21 226 28 38 13 15 38 51 57 37 20 32 39 46 53 -162 0 0 38 40 15 22 20 16 20 227 28 38 20 57 38 59 43 37 28 9 39 54 44 -161 0 0 38 48 27 22 20 17 19 228 28 38 29 8 39 7 57 37 36 15 40 3 4 -160 0 0 38 57 8 22 20 19 19 229 28 38 37 46 39 16 40 37 44 48 40 11 53 -159 0 0 39 6 17 22 20 20 18 229 28 38 46 53 39 25 51 37 53 49 40 21 10 -158 0 0 39 15 53 22 20 21 17 230 28 38 56 27 39 35 30 38 3 17 40 30 56 -157 0 0 39 25 58 22 20 23 17 231 28 39 6 29 39 45 36 38 13 13 40 41 10 -156 0 0 39 36 29 22 20 24 16 232 28 39 16 58 39 56 10 38 23 35 40 51 51 -155 0 0 39 47 28 22 20 25 15 232 27 39 27 55 40 7 12 38 34 25 41 3 0 -154 0 0 39 58 54 22 20 26 14 233 27 39 39 18 40 18 40 38 45 41 41 14 37 -153 0 0 40 10 46 22 20 27 14 234 27 39 51 7 40 30 35 38 57 23 41 26 40 -152 0 0 40 23 4 22 20 28 13 235 27 40 3 22 40 42 57 39 9 31 41 39 10 -151 0 0 40 35 49 22 20 29 12 235 26 40 16 4 40 55 44 39 22 4 41 52 7 -150 0 0 40 48 59 22 20 30 11 236 26 40 29 11 41 8 57 39 35 3 42 5 29 -149 0 0 41 2 34 22 20 31 11 237 26 40 42 43 41 22 36 39 48 27 42 19 18 -148 0 0 41 16 35 22 20 32 10 237 26 40 56 40 41 36 40 40 2 15 42 33 32 -147 0 0 41 31 0 22 20 33 9 238 25 41 11 2 41 51 9 40 16 28 42 48 10 -146 0 0 41 45 49 22 20 33 8 239 25 41 25 48 42 6 1 40 31 5 43 3 14 -145 0 0 42 1 2 22 20 34 8 240 25 41 40 57 42 21 18 40 46 5 43 18 41 -144 0 0 42 16 39 22 20 35 7 240 24 41 56 30 42 36 58 41 1 28 43 34 33 -143 0 0 42 32 38 22 20 35 6 241 24 42 12 26 42 53 2 41 17 14 43 50 47 -142 0 0 42 49 0 22 20 35 5 242 23 42 28 44 43 9 28 .. .. .. 44 7 25 -141 0 0 43 5 45 22 20 36 5 242 23 42 45 25 43 26 16 .. .. .. 44 24 25 -140 0 0 43 22 51 22 20 36 4 243 22 43 2 27 43 43 26 .. .. .. 44 41 48 -139 0 0 43 40 18 22 20 36 3 244 22 43 19 50 44 0 58 .. .. .. 44 59 31 -138 0 0 43 58 6 22 20 37 2 244 22 43 37 34 44 18 50 .. .. .. 45 17 36 -137 0 0 44 16 14 22 20 37 1 245 21 43 55 38 44 37 2 .. .. .. 45 36 1 -136 0 0 44 34 41 22 20 37 1 246 21 44 14 1 44 55 34 .. .. .. 45 54 46 Data for the target star ------------------------ * name: TYC 6169-01298-1 * constellation : Libra * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 15 11 51.5589 DE: -16 36 40.231 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .017, .020 ) * V mag [mag]: 8.0 * B mag [mag]: 8.4 * Apparent position with proper motion RA(deg): 228.0755292799 DE(deg): -16.6422688745 * Equation of equinoxes (radians) : 0.000038597733481 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (242) Kriemhild approx. diameter [km]: 39 approx. diameter ["]: .016 distance from Earth [AU]: 3.34300 * orbital information: orbit source: Preston date of fit: 2007 Nov 21 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 840 number of rejected observations: 84 time covered by the observations: 1903 Sep 23 - 2007 Jun 08 1 sigma uncertainty ellipse (major, minor, PA): 0.015, 0.010, 94° remarks: * orbital elements for (242) Kriemhild : Mean anomaly = 76.84983709 deg Arg. of pericenter = 276.54113309 deg Long. of node = 207.36429158 deg Inclination = 11.31864932 deg Eccentricity = 0.12086435 Semimajor axis = 2.86203449 AU Perihelion dist = 2.51611656 AU Mag: H = 9.33, G = 0.15 Epoch of elements : MJD 54466.93000000 TDT (2008 Jan 01.930) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Jan 01 242 Kriemhild 22h 19.0m UT 8.0 15 11 51.559-16 36 40.23TYC 6169-01298-1 8.4 14.9 39 1.1 3.343 3.626 -8.47 152.278 -16.608 206.14 -22.99 22.3161 .13447 .82064 19.81480 -3.22241 -0.00442 0.00131 2000 75.439168320071226.00000276.541133207.364292 11.3186490.120864352.862034492.51611656 9.25 0.15 RATE 2.0355969 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.022 0.022 91.8 2.390 0.022 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2007 Nov 24, 16:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org