IOTA/IOTA-ES occultation update for (295) Theresia / TYC 0006-00202-1 event on 2008 Feb 04, 17:24 UT Visible from Europe, Russia Summary ------- On 2008 Feb 04 UT, the 28 km diameter asteroid (295) Theresia will occult a 10.5 mag star in the constellation Pisces for observers along a path across Europe, Russia. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.8 mag to 15.3 mag (the magnitude of the asteroid) for at most 0.8 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: 40 * date and approx. time of event: 2008 Feb 04, 17:21 - 2008 Feb 04, 17:27 UT * midpoint of event [JD]: 2454501.22533333 * magnitude of target star: 10.5 * magnitude drop [mag]: 4.8 * estimated maximum duration [s]: 0.8 * Moon: 6 % sunlit, 81° distance * Sun: 52° distance * rough path description: Europe, Russia The occultation path -------------------- * approximate projected width [km]: 30 * 1 sigma uncertainty interval [path widths]: +/- 1.63 * 1 sigma uncertainty interval [seconds]: +/- 1.4 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .025 +/- .021) * 1 sigma uncertainty ellipse (major, minor, PA): ( .025", .021", 81° ) * approx speed of asteroid's shadow [km/s]: 37.1747 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0006-00202-1 by 295 Theresia on 2008 Feb 04 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 - 3 24 25 17 21 46 1 85 48 - 3 32 27 - 3 16 22 .. .. .. - 2 50 7 -117 0 0 - 3 18 52 17 21 46 2 85 49 - 3 26 54 - 3 10 49 .. .. .. - 2 44 32 -116 0 0 - 3 12 53 17 21 46 3 85 49 - 3 20 56 - 3 4 50 .. .. .. - 2 38 33 -115 0 0 - 3 6 30 17 21 47 4 85 50 - 3 14 33 - 2 58 27 - 3 40 45 - 2 32 8 -114 0 0 - 2 59 42 17 21 47 5 85 51 - 3 7 45 - 2 51 38 - 3 33 59 - 2 25 18 -113 0 0 - 2 52 29 17 21 47 6 85 52 - 3 0 33 - 2 44 25 - 3 26 48 - 2 18 3 -112 0 0 - 2 44 51 17 21 47 7 85 53 - 2 52 55 - 2 36 46 - 3 19 12 - 2 10 24 -111 0 0 - 2 36 48 17 21 48 8 85 54 - 2 44 53 - 2 28 43 - 3 11 11 - 2 2 19 -110 0 0 - 2 28 21 17 21 48 9 85 55 - 2 36 26 - 2 20 16 - 3 2 45 - 1 53 50 -109 0 0 - 2 19 29 17 21 49 10 85 56 - 2 27 35 - 2 11 23 - 2 53 56 - 1 44 56 -108 0 0 - 2 10 13 17 21 49 11 85 56 - 2 18 19 - 2 2 6 - 2 44 41 - 1 35 37 -107 0 0 - 2 0 32 17 21 50 12 85 57 - 2 8 38 - 1 52 25 - 2 35 2 - 1 25 54 -106 0 0 - 1 50 26 17 21 51 13 85 58 - 1 58 33 - 1 42 19 - 2 24 59 - 1 15 46 -105 0 0 - 1 39 56 17 21 51 14 85 59 - 1 48 4 - 1 31 48 - 2 14 32 - 1 5 14 -104 0 0 - 1 29 2 17 21 52 15 85 60 - 1 37 11 - 1 20 54 - 2 3 40 - 0 54 17 -103 0 0 - 1 17 44 17 21 53 16 85 60 - 1 25 53 - 1 9 35 - 1 52 25 - 0 42 57 -102 0 0 - 1 6 2 17 21 54 17 85 61 - 1 14 12 - 0 57 52 - 1 40 45 - 0 31 12 -101 0 0 - 0 53 56 17 21 55 18 85 62 - 1 2 7 - 0 45 46 - 1 28 42 - 0 19 3 -100 0 0 - 0 41 27 17 21 56 19 85 62 - 0 49 38 - 0 33 15 - 1 16 15 - 0 6 31 - 99 0 0 - 0 28 34 17 21 57 20 85 63 - 0 36 45 - 0 20 22 - 1 3 25 0 6 25 - 98 0 0 - 0 15 17 17 21 58 21 85 64 - 0 23 29 - 0 7 4 - 0 50 11 0 19 45 - 97 0 0 - 0 1 37 17 21 59 22 85 64 - 0 9 50 0 6 36 - 0 36 34 0 33 28 - 96 0 0 0 12 26 17 22 0 23 85 65 0 4 13 0 20 40 - 0 22 34 0 47 34 - 95 0 0 0 26 52 17 22 2 24 85 66 0 18 38 0 35 7 - 0 8 11 1 2 3 - 94 0 0 0 41 41 17 22 3 25 85 66 0 33 26 0 49 57 0 6 35 1 16 55 - 93 0 0 0 56 52 17 22 4 26 85 67 0 48 37 1 5 9 0 21 43 1 32 9 - 92 0 0 1 12 26 17 22 6 27 85 67 1 4 10 1 20 43 0 37 14 1 47 46 - 91 0 0 1 28 22 17 22 7 28 85 68 1 20 5 1 36 40 0 53 6 2 3 45 - 90 0 0 1 44 40 17 22 9 29 85 68 1 36 21 1 52 58 1 9 21 2 20 6 - 89 0 0 2 1 19 17 22 11 30 86 68 1 53 0 2 9 38 1 25 57 2 36 49 - 88 0 0 2 18 20 17 22 12 31 86 69 2 10 0 2 26 40 1 42 54 2 53 53 - 87 0 0 2 35 42 17 22 14 32 86 69 2 27 21 2 44 2 2 0 13 3 11 18 - 86 0 0 2 53 24 17 22 16 33 86 69 2 45 3 3 1 46 2 17 52 3 29 4 - 85 0 0 3 11 28 17 22 18 34 86 69 3 3 6 3 19 50 2 35 52 3 47 11 - 84 0 0 3 29 51 17 22 20 35 87 69 3 21 28 3 38 14 2 54 12 4 5 38 - 83 0 0 3 48 34 17 22 22 36 87 69 3 40 11 3 56 58 3 12 52 4 24 25 - 82 0 0 4 7 37 17 22 23 37 87 69 3 59 13 4 16 2 3 31 52 4 43 31 - 81 0 0 4 27 0 17 22 26 38 87 69 4 18 34 4 35 25 3 51 11 5 2 57 - 80 0 0 4 46 41 17 22 28 39 88 69 4 38 15 4 55 7 4 10 48 5 22 41 - 79 0 0 5 6 40 17 22 30 40 88 69 4 58 14 5 15 8 4 30 45 5 42 44 - 78 0 0 5 26 58 17 22 32 41 88 68 5 18 31 5 35 26 4 50 59 6 3 5 - 77 0 0 5 47 34 17 22 34 42 89 68 5 39 5 5 56 2 5 11 31 6 23 44 - 76 0 0 6 8 26 17 22 36 43 89 68 5 59 57 6 16 56 5 32 21 6 44 40 - 75 0 0 6 29 36 17 22 39 44 90 67 6 21 6 6 38 6 5 53 27 7 5 53 - 74 0 0 6 51 2 17 22 41 45 90 67 6 42 31 6 59 33 6 14 50 7 27 23 - 73 0 0 7 12 44 17 22 44 46 91 66 7 4 13 7 21 16 6 36 29 7 49 8 - 72 0 0 7 34 42 17 22 46 47 91 66 7 26 10 7 43 14 6 58 23 8 11 9 - 71 0 0 7 56 54 17 22 48 48 92 65 7 48 21 8 5 28 7 20 32 8 33 24 - 70 0 0 8 19 21 17 22 51 49 92 64 8 10 48 8 27 55 7 42 56 8 55 54 - 69 0 0 8 42 2 17 22 54 50 93 64 8 33 28 8 50 37 8 5 34 9 18 38 - 68 0 0 9 4 57 17 22 56 51 94 63 8 56 22 9 13 32 8 28 26 9 41 36 - 67 0 0 9 28 4 17 22 59 52 94 62 9 19 29 9 36 40 8 51 31 10 4 46 - 66 0 0 9 51 24 17 23 2 53 95 62 9 42 48 10 0 1 9 14 48 10 28 9 - 65 0 0 10 14 56 17 23 4 54 96 61 10 6 19 10 23 33 9 38 16 10 51 43 - 64 0 0 10 38 39 17 23 7 55 97 60 10 30 1 10 47 17 10 1 57 11 15 29 - 63 0 0 11 2 32 17 23 10 56 98 59 10 53 54 11 11 11 10 25 48 11 39 25 - 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32 52 59 33 9 53 32 25 30 33 37 30 - 5 0 0 33 18 48 17 25 56 53 225 5 33 10 22 33 27 15 32 42 55 33 54 49 - 4 0 0 33 35 52 17 25 58 53 226 4 33 27 26 33 44 17 33 0 2 34 11 49 - 3 0 0 33 52 36 17 26 0 52 227 3 33 44 12 34 1 1 33 16 50 34 28 30 - 2 0 0 34 9 2 17 26 2 51 228 2 34 0 38 34 17 26 33 33 19 34 44 52 - 1 0 0 34 25 8 17 26 5 50 229 1 34 16 45 34 33 31 33 49 29 35 0 55 0 0 0 34 40 55 17 26 7 49 230 0 34 32 33 34 49 18 34 5 20 35 16 39 1 0 0 34 56 23 17 26 9 48 231 -1 34 48 2 35 4 45 34 20 51 35 32 3 2 0 0 35 11 32 17 26 11 48 232 -1 35 3 11 35 19 53 34 36 3 35 47 8 3 0 0 35 26 21 17 26 13 47 233 -2 35 18 1 35 34 41 34 50 55 36 1 54 4 0 0 35 40 50 17 26 15 46 234 -3 35 32 31 35 49 9 35 5 28 36 16 20 5 0 0 35 55 0 17 26 17 45 234 -4 35 46 42 36 3 18 35 19 41 36 30 26 6 0 0 36 8 50 17 26 18 44 235 -5 36 0 33 36 17 8 35 33 35 36 44 13 7 0 0 36 22 20 17 26 20 44 236 -6 36 14 4 36 30 37 35 47 8 36 57 40 8 0 0 36 35 31 17 26 22 43 237 -7 36 27 15 36 43 47 36 0 22 37 10 47 9 0 0 36 48 22 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-19 39 5 24 39 21 36 38 39 4 39 48 3 24 0 0 39 21 24 17 26 47 30 249 -20 39 13 19 39 29 29 38 47 0 39 55 54 25 0 0 39 28 57 17 26 48 30 250 -20 39 20 53 39 37 2 38 54 36 40 3 26 26 0 0 39 36 11 17 26 49 29 251 -21 39 28 7 39 44 16 39 1 52 40 10 38 27 0 0 39 43 6 17 26 50 28 252 -22 39 35 2 39 51 10 39 8 49 40 17 30 28 0 0 39 49 41 17 26 51 27 252 -23 39 41 38 39 57 44 39 15 25 40 24 3 29 0 0 39 55 56 17 26 52 26 253 -23 39 47 53 40 3 59 39 21 42 40 30 16 30 0 0 40 1 52 17 26 54 26 254 -24 39 53 50 40 9 54 39 27 40 40 36 10 31 0 0 40 7 28 17 26 55 25 254 -25 39 59 26 40 15 30 39 33 18 40 41 45 32 0 0 40 12 45 17 26 56 24 255 -26 40 4 43 40 20 46 39 38 36 40 47 0 33 0 0 40 17 42 17 26 57 23 256 -26 40 9 41 40 25 43 39 43 35 40 51 56 34 0 0 40 22 20 17 26 58 23 256 -27 40 14 19 40 30 21 39 48 14 40 56 32 35 0 0 40 26 38 17 26 58 22 257 -28 40 18 37 40 34 39 39 52 34 41 0 49 36 0 0 40 30 37 17 26 59 21 258 -29 40 22 37 40 38 37 39 56 34 41 4 47 37 0 0 40 34 16 17 27 0 20 259 -30 40 26 16 40 42 17 40 0 14 41 8 25 38 0 0 40 37 37 17 27 1 20 259 -30 40 29 37 40 45 37 40 3 35 41 11 44 39 0 0 40 40 37 17 27 2 19 260 -31 40 32 38 40 48 37 40 6 37 41 14 44 40 0 0 40 43 19 17 27 3 18 261 -32 40 35 20 40 51 19 40 9 20 41 17 25 41 0 0 40 45 41 17 27 3 17 261 -33 40 37 42 40 53 41 40 11 43 41 19 46 42 0 0 40 47 44 17 27 4 17 262 -33 40 39 45 40 55 44 40 13 46 41 21 49 43 0 0 40 49 28 17 27 5 16 263 -34 40 41 29 40 57 27 40 15 31 41 23 32 44 0 0 40 50 52 17 27 5 15 263 -35 40 42 54 40 58 52 40 16 55 41 24 56 45 0 0 40 51 58 17 27 6 14 264 -36 40 43 59 40 59 57 40 18 1 41 26 1 46 0 0 40 52 44 17 27 7 14 265 -36 40 44 45 41 0 43 40 18 47 41 26 47 47 0 0 40 53 11 17 27 7 13 265 -37 40 45 12 41 1 10 40 19 14 41 27 14 48 0 0 40 53 19 17 27 8 12 266 -38 40 45 20 41 1 18 40 19 22 41 27 22 49 0 0 40 53 7 17 27 8 11 267 -39 40 45 8 41 1 6 40 19 11 41 27 10 50 0 0 40 52 36 17 27 9 11 267 -39 40 44 38 41 0 35 40 18 40 41 26 40 51 0 0 40 51 47 17 27 9 10 268 -40 40 43 48 40 59 46 40 17 50 41 25 50 52 0 0 40 50 38 17 27 9 9 269 -41 40 42 39 40 58 37 40 16 40 41 24 42 53 0 0 40 49 10 17 27 10 8 269 -41 40 41 11 40 57 9 40 15 12 41 23 14 54 0 0 40 47 22 17 27 10 7 270 -42 40 39 23 40 55 22 40 13 24 41 21 28 55 0 0 40 45 16 17 27 10 7 271 -43 40 37 17 40 53 16 40 11 17 41 19 22 56 0 0 40 42 50 17 27 11 6 271 -44 40 34 51 40 50 50 40 8 50 41 16 57 57 0 0 40 40 6 17 27 11 5 272 -44 40 32 6 40 48 6 40 6 5 41 14 13 58 0 0 40 37 2 17 27 11 4 273 -45 40 29 2 40 45 2 40 3 0 41 11 10 59 0 0 40 33 38 17 27 11 4 273 -46 40 25 38 40 41 39 39 59 35 41 7 48 60 0 0 40 29 56 17 27 11 3 274 -47 40 21 56 40 37 57 39 55 52 41 4 7 61 0 0 40 25 55 17 27 11 2 274 -47 40 17 54 40 33 56 39 51 49 41 0 7 62 0 0 40 21 34 17 27 12 1 275 -48 40 13 33 40 29 35 .. .. .. 40 55 48 63 0 0 40 16 54 17 27 12 1 276 -49 40 8 53 40 24 56 .. .. .. 40 51 9 Data for the target star ------------------------ * name: TYC 0006-00202-1 * constellation : Pisces * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 00 22 49.3981 DE: +04 46 41.521 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .020, .019 ) * V mag [mag]: 10.5 * B mag [mag]: 11.4 * Apparent position with proper motion RA(deg): 5.8090588458 DE(deg): 4.8231493127 * Equation of equinoxes (radians) : 0.000045919404114 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (295) Theresia approx. diameter [km]: 28 approx. diameter ["]: .013 distance from Earth [AU]: 2.87200 * orbital information: orbit source: Preston date of fit: 2008 Jan 02 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 756 number of rejected observations: 77 time covered by the observations: 1909 Oct 15 - 2007 Dec 15 1 sigma uncertainty ellipse (major, minor, PA): 0.016, 0.008, 67° remarks: * orbital elements for (295) Theresia : Mean anomaly = 332.40958420 deg Arg. of pericenter = 148.59867940 deg Long. of node = 276.12099790 deg Inclination = 2.70666579 deg Eccentricity = 0.17071605 Semimajor axis = 2.79566620 AU Perihelion dist = 2.31840111 AU Mag: H = 9.80, G = 0.15 Epoch of elements : MJD 54500.72500000 TDT (2008 Feb 04.725) ------ occelmnt file for Occult BEGIN ----------------------------------- 2008 Feb 04 295 Theresia 17h 24.5m UT 10.5 0 22 49.398 4 46 41.52TYC 0006-00202-1 11.4 15.3 28 0.8 2.872 3.990 23.87 -29.671 4.772 282.36 -16.26 17.4080 -.11805 .29204 19.48072 7.79521 0.00415 0.00193 2000 332.2567162008 2 4.00000148.598679276.120998 2.7066660.170716052.795666202.3184011110.15 0.15 RATE 2.1085130 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.025 0.021 80.8 2.630 0.021 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2008 Jan 04, 04:39 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org