IOTA/IOTA-ES occultation update for (3193) Elliot / TYC 2426-01315-1 event on 2012 Nov 29, 06:44 UT Visible from USA Summary ------- On 2012 Nov 29 UT, the 25 km diameter asteroid (3193) Elliot will occult a 10.9 mag star in the constellation Auriga for observers along a path across USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 5.1 mag to 16.0 mag (the magnitude of the asteroid) for at most 4.3 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: 29 * date and approx. time of event: 2012 Nov 29, 06:27 - 2012 Nov 29, 07:03 UT * geocentric midpoint of event [JD]: 2456260.78101667 * magnitude of target star: 10.9 * magnitude drop [mag]: 5.1 * estimated maximum duration [s]: 4.3 * Moon: 100 % sunlit, 24° distance * Sun: 150° distance * rough path description: USA The occultation path -------------------- * approximate projected width [km]: 25 * 1 sigma uncertainty interval [path widths]: +/- 2.32 * 1 sigma uncertainty interval [seconds]: +/- 11.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .098 +/- .066) * 1 sigma uncertainty ellipse (major, minor, PA): ( .098", .065", 94° ) * approx speed of asteroid's shadow [km/s]: 5.7705 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2426-01315-1 by 3193 Elliot on 2012 Nov 29 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 -179 0 0 18 37 29 7 3 0 0 55 -24 18 45 48 18 29 10 19 24 20 17 50 33 -178 0 0 19 16 54 7 3 0 2 55 -25 19 25 10 19 8 38 20 3 29 18 30 14 -177 0 0 19 55 30 7 2 59 3 56 -27 20 3 43 19 47 17 20 41 49 19 9 6 -176 0 0 20 33 16 7 2 57 4 56 -28 20 41 26 20 25 5 21 19 19 19 47 7 -175 0 0 21 10 12 7 2 56 5 56 -29 21 18 20 21 2 4 21 56 0 20 24 19 -174 0 0 21 46 19 7 2 54 6 57 -30 21 54 24 21 38 14 22 31 51 21 0 41 -173 0 0 22 21 36 7 2 51 7 57 -31 22 29 38 22 13 34 23 6 54 21 36 14 -172 0 0 22 56 5 7 2 48 8 58 -32 23 4 5 22 48 5 23 41 8 22 10 58 -171 0 0 23 29 45 7 2 45 9 58 -33 23 37 42 23 21 48 24 14 33 22 44 53 -170 0 0 24 2 37 7 2 42 10 58 -34 24 10 31 23 54 43 24 47 10 23 17 59 -169 0 0 24 34 41 7 2 38 11 59 -35 24 42 33 24 26 49 25 19 0 23 50 18 -168 0 0 25 5 58 7 2 34 12 59 -36 25 13 47 24 58 8 25 50 3 24 21 48 -167 0 0 25 36 27 7 2 29 13 60 -37 25 44 14 25 28 40 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3 32 15 3 30 53 29 - 80 0 0 31 14 58 6 46 9 83 70 -66 31 22 13 31 7 43 31 55 52 30 34 2 - 79 0 0 30 55 4 6 45 53 84 65 -65 31 2 21 30 47 47 31 36 7 30 13 59 - 78 0 0 30 34 34 6 45 36 84 58 -65 30 41 53 30 27 16 31 15 46 29 53 21 - 77 0 0 30 13 28 6 45 19 85 50 -64 30 20 48 30 6 9 30 54 49 29 32 6 - 76 0 0 29 51 47 6 45 2 85 40 -63 29 59 8 29 44 25 30 33 16 29 10 15 - 75 0 0 29 29 28 6 44 45 85 29 -63 29 36 51 29 22 5 30 11 7 28 47 47 - 74 0 0 29 6 33 6 44 28 85 18 -62 29 13 58 28 59 8 29 48 21 28 24 43 - 73 0 0 28 43 1 6 44 10 85 7 -61 28 50 28 28 35 35 29 24 59 28 1 1 - 72 0 0 28 18 52 6 43 53 85 357 -60 28 26 20 28 11 24 29 0 59 27 36 43 - 71 0 0 27 54 6 6 43 35 84 349 -60 28 1 36 27 46 36 28 36 23 27 11 46 - 70 0 0 27 28 42 6 43 17 84 343 -59 27 36 13 27 21 10 28 11 9 26 46 12 - 69 0 0 27 2 40 6 42 59 83 338 -58 27 10 13 26 55 6 27 45 17 26 20 0 - 68 0 0 26 36 0 6 42 41 82 333 -57 26 43 35 26 28 24 27 18 47 25 53 10 - 67 0 0 26 8 41 6 42 23 81 330 -56 26 16 19 26 1 4 26 51 39 25 25 41 - 66 0 0 25 40 45 6 42 5 81 327 -56 25 48 24 25 33 6 26 23 53 24 57 34 - 65 0 0 25 12 10 6 41 47 80 325 -55 25 19 51 25 4 29 25 55 29 24 28 48 - 64 0 0 24 42 56 6 41 28 79 323 -54 24 50 39 24 35 13 25 26 26 23 59 23 - 63 0 0 24 13 3 6 41 10 78 322 -53 24 20 48 24 5 19 24 56 44 23 29 20 - 62 0 0 23 42 32 6 40 51 77 321 -52 23 50 19 23 34 45 24 26 24 22 58 37 - 61 0 0 23 11 22 6 40 33 76 320 -51 23 19 10 23 3 33 23 55 24 22 27 16 - 60 0 0 22 39 32 6 40 14 75 319 -50 22 47 23 22 31 41 23 23 46 21 55 15 - 59 0 0 22 7 4 6 39 55 74 318 -49 22 14 56 21 59 11 22 51 29 21 22 35 - 58 0 0 21 33 56 6 39 36 73 318 -48 21 41 51 21 26 1 22 18 32 20 49 17 - 57 0 0 21 0 9 6 39 17 72 317 -48 21 8 6 20 52 12 21 44 57 20 15 19 - 56 0 0 20 25 44 6 38 58 71 317 -47 20 33 42 20 17 45 21 10 43 19 40 42 - 55 0 0 19 50 39 6 38 39 70 316 -46 19 58 40 19 42 38 20 35 49 19 5 26 - 54 0 0 19 14 56 6 38 20 69 316 -45 19 22 59 19 6 53 20 0 18 18 29 31 - 53 0 0 18 38 34 6 38 1 68 316 -44 18 46 39 18 30 29 19 24 7 17 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20 11 6 33 18 52 315 -28 8 28 44 8 11 37 9 8 25 7 31 51 - 37 0 0 7 34 33 6 33 1 51 315 -27 7 43 8 7 25 57 8 22 57 6 46 3 - 36 0 0 6 48 27 6 32 43 49 315 -26 6 57 4 6 39 50 7 37 0 5 59 48 - 35 0 0 6 1 54 6 32 25 48 315 -24 6 10 32 5 53 15 6 50 37 5 13 6 - 34 0 0 5 14 55 6 32 8 47 315 -23 5 23 35 5 6 15 6 3 47 4 25 58 - 33 0 0 4 27 32 6 31 51 46 315 -22 4 36 14 4 18 50 5 16 32 3 38 27 - 32 0 0 3 39 46 6 31 34 45 315 -21 3 48 29 3 31 3 4 28 54 2 50 32 - 31 0 0 2 51 38 6 31 18 43 315 -20 3 0 23 2 42 54 3 40 54 2 2 17 - 30 0 0 2 3 10 6 31 2 42 315 -19 2 11 56 1 54 24 2 52 33 1 13 41 - 29 0 0 1 14 24 6 30 46 41 315 -18 1 23 11 1 5 36 2 3 53 0 24 47 - 28 0 0 0 25 20 6 30 31 40 315 -16 0 34 8 0 16 31 1 14 56 - 0 24 23 - 27 0 0 - 0 23 59 6 30 15 38 315 -15 - 0 15 10 - 0 32 49 0 25 43 - 1 13 48 - 26 0 0 - 1 13 32 6 30 1 37 314 -14 - 1 4 42 - 1 22 23 - 0 23 44 - 2 3 27 - 25 0 0 - 2 3 17 6 29 46 36 314 -13 - 1 54 26 - 2 12 8 - 1 13 23 - 2 53 17 - 24 0 0 - 2 53 12 6 29 32 35 314 -12 - 2 44 20 - 3 2 4 - 2 3 14 - 3 43 17 - 23 0 0 - 3 43 15 6 29 19 33 314 -10 - 3 34 22 - 3 52 8 - 2 53 12 - 4 33 24 - 22 0 0 - 4 33 24 6 29 6 32 314 -9 - 4 24 31 - 4 42 18 - 3 43 18 - 5 23 37 - 21 0 0 - 5 23 38 6 28 53 31 314 -8 - 5 14 44 - 5 32 32 - 4 33 29 - 6 13 54 - 20 0 0 - 6 13 54 6 28 41 30 314 -7 - 6 5 0 - 6 22 49 - 5 23 43 - 7 4 13 - 19 0 0 - 7 4 11 6 28 29 28 314 -6 - 6 55 16 - 7 13 6 - 6 13 57 - 7 54 32 - 18 0 0 - 7 54 26 6 28 18 27 314 -5 - 7 45 31 - 8 3 22 - 7 4 11 - 8 44 48 - 17 0 0 - 8 44 38 6 28 7 26 313 -3 - 8 35 43 - 8 53 33 - 7 54 22 - 9 35 1 - 16 0 0 - 9 34 44 6 27 56 25 313 -2 - 9 25 48 - 9 43 39 - 8 44 28 -10 25 7 - 15 0 0 -10 24 42 6 27 47 23 313 -1 -10 15 47 -10 33 37 - 9 34 26 -11 15 5 Uncertainty in time = +/- 14 secs Prediction of 2012 Nov 16.0 Data for the target star ------------------------ * name: TYC 2426-01315-1 * constellation : Auriga * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 06 28 11.3896 DE: +33 04 34.934 * position source: mpos:UCAC4 pm:UCAC4 * standard error: RA,DE ["]: ( .029, .028 ) * V mag [mag]: 10.9 * B mag [mag]: 11.1 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3193) Elliot approx. diameter [km]: 25 approx. diameter ["]: .030 distance from Earth [AU]: 1.14000 * orbital information: orbit source: Preston date of fit: 2012 Nov 16 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 830 number of rejected observations: 21 time covered by the observations: 1977 Nov 10 - 2012 Nov 13 1 sigma uncertainty ellipse (major, minor, PA): 0.094, 0.059, 94° remarks: * orbital elements for (3193) Elliot : Mean anomaly = 355.63176138 deg Arg. of pericenter = 76.30390994 deg Long. of node = 11.80788710 deg Inclination = 5.73006674 deg Eccentricity = 0.10620860 Semimajor axis = 2.29620291 AU Perihelion dist = 2.05232642 AU Mag: H = 13.06, G = 0.15 Epoch of elements : MJD 56260.28100000 TDT (2012 Nov 29.281) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 29 3193 Elliot 6h 44.7m UT 10.9 6 28 11.390 33 4 34.93TYC 2426-01315-1 11.1 16.0 25 4.3 1.140 -1.795 11.10 -72.6798 33.073 75.93 -21.55 6.7444 -0.03428 -0.06668 -2.92190 1.43901 -0.00267 -0.00068 2000 355.55216420121129.00000 76.303910 11.807887 5.7300670.10620860 2.2962029 2.052326413.4 5.00.15 RATE 2.8326230 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.098 0.065 94 3.32 0.070 0 0-4 4 056247.0020121129_1315-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Nov 16, 09:10 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org