IOTA/IOTA-ES occultation update for (914) Palisana / UCAC2 44616909 event on 2012 Nov 02, 02:28 UT Visible from E Canada, E USA, Mexico Summary ------- On 2012 Nov 02 UT, the 99 km diameter asteroid (914) Palisana will occult a 11.5 mag star in the constellation Perseus for observers along a path across E Canada, E USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.3 mag to 12.4 mag (the magnitude of the asteroid) for at most 7.5 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: 96 * date and approx. time of event: 2012 Nov 02, 02:23 - 2012 Nov 02, 02:35 UT * geocentric midpoint of event [JD]: 2456233.6031875 * magnitude of target star: 11.5 * magnitude drop [mag]: 1.3 * estimated maximum duration [s]: 7.5 * Moon: 90 % sunlit, 23° distance * Sun: 153° distance * rough path description: E Canada, E USA, Mexico The occultation path -------------------- * approximate projected width [km]: 122 * 1 sigma uncertainty interval [path widths]: +/- 0.41 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .035 +/- .035) * 1 sigma uncertainty ellipse (major, minor, PA): ( .035", .035", 94° ) * approx speed of asteroid's shadow [km/s]: 13.2344 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC2 44616909 by 914 Palisana on 2012 Nov 2 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 E. Longitude Latitude U.T. Alt Az Alt o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude 110 28 13 75 19 22 2 23 10 26 318 -2 107 43 54 75 34 28 113 9 39 75 1 29 105 27 33 75 44 50 115 19 21 74 44 42 107 17 17 77 14 57 2 23 20 28 315 -4 104 11 35 77 26 23 110 20 5 77 0 42 101 37 59 77 33 41 112 47 4 76 46 51 103 32 58 79 2 20 2 23 30 30 311 -6 100 0 25 79 10 3 107 3 5 78 51 39 97 5 36 79 14 10 109 52 25 78 40 36 98 57 55 80 42 9 2 23 40 31 306 -8 94 51 42 80 45 48 103 3 20 80 35 15 91 31 11 80 46 25 106 22 5 80 27 7 93 4 43 82 14 17 2 23 50 33 300 -9 88 17 4 82 13 12 97 55 54 82 11 46 84 26 47 82 9 44 101 54 8 82 6 55 85 8 42 83 37 35 2 24 0 34 291 -11 79 33 46 83 30 39 90 57 39 83 40 32 75 13 31 83 22 15 95 49 12 83 39 46 73 59 13 84 49 12 2 24 9 36 280 -13 67 43 46 84 34 53 80 51 43 84 59 20 63 6 14 84 20 31 86 51 43 85 4 5 58 7 16 85 43 22 2 24 19 37 263 -14 51 56 47 85 20 17 65 32 12 86 2 55 47 41 49 84 59 24 72 35 22 86 15 29 37 14 4 86 11 16 2 24 29 38 242 -16 32 49 13 85 40 2 43 7 32 86 40 56 29 59 19 85 13 42 49 29 38 87 3 19 14 53 12 86 6 25 2 24 39 40 219 -17 13 28 3 85 30 56 16 53 54 86 42 3 12 35 37 85 2 1 19 15 37 87 11 17 - 3 43 44 85 32 46 2 24 49 41 200 -18 - 2 45 59 84 57 26 - 4 57 0 86 8 24 - 2 6 37 84 28 42 - 6 14 37 86 37 50 - 17 6 10 84 40 46 2 24 59 42 185 -20 - 14 58 14 84 7 43 - 19 43 1 85 13 41 - 13 29 34 83 40 36 - 22 20 57 85 40 27 - 26 25 40 83 38 57 2 25 8 43 175 -21 - 23 53 35 83 8 36 - 29 24 4 84 8 49 - 22 4 44 82 43 28 - 32 14 44 84 32 48 - 33 6 16 82 32 9 2 25 18 44 168 -22 - 30 31 2 82 4 17 - 36 2 21 82 59 21 - 28 37 0 81 41 2 - 38 44 58 83 21 1 - 38 5 7 81 22 52 2 25 28 45 162 -23 - 35 35 6 80 57 8 - 40 51 14 81 47 51 - 33 42 44 80 35 35 - 43 20 59 82 7 40 - 41 57 15 80 12 25 2 25 38 46 157 -25 - 39 35 19 79 48 31 - 44 31 41 80 35 34 - 37 47 26 79 28 25 - 46 48 33 80 53 54 - 45 4 3 79 1 32 2 25 48 47 153 -26 - 42 50 48 78 39 10 - 47 27 10 79 23 9 - 41 8 22 78 20 21 - 49 32 27 79 40 14 - 47 38 56 77 50 36 2 25 58 47 149 -27 - 45 34 2 77 29 34 - 49 51 47 78 10 55 - 43 57 12 77 11 51 - 51 46 58 78 26 57 - 49 50 40 76 39 51 2 26 8 48 146 -28 - 47 53 28 76 19 59 - 51 54 21 76 59 1 - 46 21 58 76 3 13 - 53 40 51 77 14 10 - 51 45 5 75 29 23 2 26 17 49 143 -29 - 49 54 51 75 10 32 - 53 40 42 75 47 34 - 48 28 19 74 54 37 - 55 19 41 76 1 56 - 53 26 15 74 19 17 2 26 27 49 140 -30 - 51 42 17 74 1 21 - 55 14 46 74 36 35 - 50 20 18 73 46 12 - 56 47 15 74 50 16 - 54 57 6 73 9 35 2 26 37 50 138 -31 - 53 18 44 72 52 27 - 56 39 20 73 26 6 - 52 0 53 72 37 59 - 58 6 9 73 39 9 - 56 19 44 72 0 16 2 26 47 51 135 -32 - 54 46 24 71 43 53 - 57 56 25 72 16 5 - 53 32 18 71 30 2 - 59 18 15 72 28 34 - 57 35 45 70 51 21 2 26 57 51 133 -33 - 56 6 57 70 35 38 - 59 7 29 71 6 31 - 54 56 15 70 22 21 - 60 24 56 71 18 30 - 58 46 22 69 42 48 2 27 7 52 130 -34 - 57 21 38 69 27 42 - 60 13 41 69 57 22 - 56 14 1 69 14 57 - 61 27 13 70 8 53 - 59 52 31 68 34 37 2 27 17 52 128 -35 - 58 31 28 68 20 5 - 61 15 51 68 48 38 - 57 26 40 68 7 48 - 62 25 55 68 59 43 - 60 54 57 67 26 45 2 27 26 52 125 -36 - 59 37 13 67 12 45 - 62 14 42 67 40 15 - 58 34 59 67 0 55 - 63 21 39 67 50 56 - 61 54 15 66 19 11 2 27 36 53 123 -37 - 60 39 34 66 5 41 - 63 10 46 66 32 12 - 59 39 40 65 54 16 - 64 14 54 66 42 30 - 62 50 54 65 11 53 2 27 46 53 121 -38 - 61 38 59 64 58 51 - 64 4 29 65 24 27 - 60 41 14 64 47 50 - 65 6 4 65 34 24 - 63 45 19 64 4 50 2 27 56 53 118 -38 - 62 35 56 63 52 14 - 64 56 12 64 16 58 - 61 40 9 63 41 35 - 65 55 29 64 26 35 - 64 37 49 62 57 58 2 28 6 53 116 -39 - 63 30 45 62 45 48 - 65 46 15 63 9 43 - 62 36 47 62 35 30 - 66 43 25 63 19 0 - 65 28 40 61 51 18 2 28 16 54 114 -40 - 64 23 45 61 39 31 - 66 34 52 62 2 39 - 63 31 27 61 29 33 - 67 30 6 62 11 37 - 66 18 7 60 44 45 2 28 26 54 111 -41 - 65 15 11 60 33 21 - 67 22 15 60 55 44 - 64 24 26 60 23 42 - 68 15 44 61 4 25 - 67 6 23 59 38 19 2 28 35 54 109 -41 - 66 5 15 59 27 17 - 68 8 36 59 48 57 - 65 15 56 59 17 57 - 69 0 27 59 57 21 - 67 53 37 58 31 58 2 28 45 54 107 -42 - 66 54 11 58 21 17 - 68 54 5 58 42 15 - 66 6 11 58 12 14 - 69 44 27 58 50 23 - 68 40 0 57 25 39 2 28 55 54 105 -43 - 67 42 7 57 15 19 - 69 38 50 57 35 37 - 66 55 21 57 6 33 - 70 27 49 57 43 28 - 69 25 39 56 19 21 2 29 5 53 102 -43 - 68 29 13 56 9 20 - 70 22 59 56 28 59 - 67 43 36 56 0 51 - 71 10 40 56 36 35 - 70 10 41 55 13 2 2 29 15 53 100 -44 - 69 15 36 55 3 20 - 71 6 37 55 22 21 - 68 31 3 54 55 7 - 71 53 8 55 29 42 - 70 55 14 54 6 38 2 29 25 53 98 -45 - 70 1 24 53 57 15 - 71 49 53 54 15 39 - 69 17 50 53 49 18 - 72 35 17 54 22 45 - 71 39 23 53 0 9 2 29 35 53 96 -45 - 70 46 43 52 51 5 - 72 32 50 53 8 52 - 70 4 5 52 43 22 - 73 17 13 53 15 43 - 72 23 15 51 53 32 2 29 44 52 94 -46 - 71 31 40 51 44 46 - 73 15 34 52 1 57 - 70 49 53 51 37 19 - 73 59 1 52 8 34 - 73 6 54 50 46 45 2 29 54 52 92 -46 - 72 16 19 50 38 17 - 73 58 11 50 54 52 - 71 35 21 50 31 4 - 74 40 45 51 1 15 - 73 50 26 49 39 46 2 30 4 52 90 -46 - 73 0 47 49 31 35 - 74 40 44 49 47 35 - 72 20 34 49 24 37 - 75 22 30 49 53 43 - 74 33 55 48 32 31 2 30 14 51 88 -47 - 73 45 9 48 24 38 - 75 23 19 48 40 3 - 73 5 38 48 17 54 - 76 4 19 48 45 57 - 75 17 26 47 24 59 2 30 24 51 86 -47 - 74 29 29 47 17 23 - 76 6 1 47 32 13 - 73 50 36 47 10 54 - 76 46 18 47 37 53 - 76 1 4 46 17 6 2 30 34 50 84 -47 - 75 13 52 46 9 48 - 76 48 52 46 24 3 - 74 35 36 46 3 34 - 77 28 31 46 29 28 - 76 44 53 45 8 51 2 30 43 50 83 -48 - 75 58 22 45 1 50 - 77 31 58 45 15 30 - 75 20 40 44 55 50 - 78 11 1 45 20 40 - 77 28 58 44 0 9 2 30 53 49 81 -48 - 76 43 6 43 53 27 - 78 15 24 44 6 30 - 76 5 55 43 47 41 - 78 53 54 44 11 26 - 78 13 24 42 50 58 2 31 3 48 79 -48 - 77 28 7 42 44 34 - 78 59 13 42 57 1 - 76 51 24 42 39 3 - 79 37 13 43 1 42 - 78 58 15 41 41 14 2 31 13 47 78 -48 - 78 13 31 41 35 8 - 79 43 32 41 46 58 - 77 37 14 41 29 53 - 80 21 4 41 51 24 - 79 43 37 40 30 54 2 31 23 47 76 -48 - 78 59 22 40 25 7 - 80 28 24 40 36 18 - 78 23 29 40 20 7 - 81 5 31 40 40 28 - 80 29 35 39 19 53 2 31 33 46 75 -48 - 79 45 47 39 14 25 - 81 13 55 39 24 58 - 79 10 15 39 9 41 - 81 50 40 39 28 51 - 81 16 15 38 8 6 2 31 43 45 73 -48 - 80 32 50 38 2 59 - 82 0 11 38 12 51 - 79 57 37 37 58 32 - 82 36 37 38 16 27 - 82 3 43 36 55 30 2 31 52 44 72 -48 - 81 20 38 36 50 44 - 82 47 19 36 59 53 - 80 45 42 36 46 33 - 83 23 27 37 3 11 - 82 52 6 35 41 58 2 32 2 43 70 -48 - 82 9 19 35 37 34 - 83 35 25 35 45 58 - 81 34 37 35 33 41 - 84 11 19 35 48 58 - 83 41 32 34 27 24 2 32 12 42 69 -48 - 82 58 59 34 23 23 - 84 24 37 34 31 1 - 82 24 28 34 19 49 - 85 0 20 34 33 40 - 84 32 9 33 11 41 2 32 22 41 68 -48 - 83 49 47 33 8 5 - 85 15 4 33 14 53 - 83 15 25 33 4 51 - 85 50 39 33 17 11 - 85 24 8 31 54 42 2 32 32 40 67 -47 - 84 41 52 31 51 32 - 86 6 56 31 57 26 - 84 7 36 31 48 39 - 86 42 26 31 59 22 - 86 17 38 30 36 17 2 32 42 39 65 -47 - 85 35 25 30 33 35 - 87 0 24 30 38 32 - 85 1 12 30 31 4 - 87 35 54 30 40 2 - 87 12 54 29 16 15 2 32 52 37 64 -46 - 86 30 39 29 14 4 - 87 55 43 29 17 58 - 85 56 25 29 11 58 - 88 31 15 29 19 2 - 88 10 10 27 54 24 2 33 1 36 63 -46 - 87 27 48 27 52 47 - 88 53 7 27 55 32 - 86 53 29 27 51 7 - 89 28 48 27 56 6 - 89 9 45 26 30 29 2 33 11 35 62 -45 - 88 27 10 26 29 30 - 89 52 57 26 30 58 - 87 52 42 26 28 19 - 90 28 51 26 30 58 - 90 12 1 25 4 12 2 33 21 33 61 -44 - 89 29 7 25 3 54 - 90 55 35 25 3 57 - 88 54 24 25 3 17 - 91 31 49 25 3 19 - 91 17 26 23 35 10 2 33 31 32 60 -43 - 90 34 3 23 35 41 - 92 1 32 23 34 5 - 89 58 59 23 35 41 - 92 38 14 23 32 44 - 92 26 35 22 2 55 2 33 41 30 59 -42 - 91 42 33 22 4 21 - 93 11 24 22 0 51 - 91 7 0 22 5 4 - 93 48 45 21 58 39 - 93 40 15 20 26 51 2 33 51 28 58 -41 - 92 55 19 20 29 22 - 94 26 2 20 23 36 - 92 19 6 20 30 56 - 95 4 16 20 20 23 - 94 59 26 18 46 7 2 34 1 26 58 -40 - 94 13 18 18 49 58 - 95 46 33 18 41 27 - 93 36 11 18 52 32 - 96 25 58 18 36 59 - 96 25 36 16 59 35 2 34 10 24 57 -38 - 95 37 50 17 5 5 - 97 14 33 16 53 8 - 94 59 29 17 8 56 - 97 55 38 16 47 3 - 98 0 55 15 5 35 2 34 20 22 56 -37 - 97 10 50 15 13 14 - 98 52 28 14 56 43 - 96 30 45 15 18 43 - 99 35 57 14 48 29 - 99 48 50 13 1 23 2 34 30 19 55 -35 - 98 55 18 13 12 4 -100 44 19 12 49 8 - 98 12 44 13 19 45 -101 31 29 12 37 46 -101 55 33 10 42 13 2 34 40 16 55 -32 -100 56 30 10 57 30 -102 57 36 10 24 35 -100 10 1 11 8 29 -103 51 10 10 8 0 -104 34 43 7 57 39 2 34 50 13 54 -29 -103 25 9 8 21 19 -105 50 16 7 29 21 -102 31 35 8 38 0 -106 58 15 7 1 29 -108 33 13 4 12 5 2 35 0 7 54 -25 -106 52 8 5 0 0 -110 45 42 3 0 22 -105 40 49 5 30 29 ... .. .. .. .. .. Uncertainty in time = +/- 3 secs Prediction of 2012 Oct 26.0 Data for the target star ------------------------ * name: UCAC2 44616909 * constellation : Perseus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 03 42 39.4858 DE: +36 37 32.954 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .028, .032 ) * V mag [mag]: 11.5 * B mag [mag]: 0.0 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (914) Palisana approx. diameter [km]: 99 approx. diameter ["]: .087 distance from Earth [AU]: 1.57300 * orbital information: orbit source: Preston date of fit: 2012 Oct 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 844 number of rejected observations: 45 time covered by the observations: 1931 Oct 13 - 2012 Oct 25 1 sigma uncertainty ellipse (major, minor, PA): 0.022, 0.016, 101° remarks: * orbital elements for (914) Palisana : Mean anomaly = 82.01529180 deg Arg. of pericenter = 48.88013527 deg Long. of node = 255.84639599 deg Inclination = 25.21964422 deg Eccentricity = 0.21263525 Semimajor axis = 2.45931074 AU Perihelion dist = 1.93637458 AU Mag: H = 9.04, G = 0.15 Epoch of elements : MJD 56233.10300000 TDT (2012 Nov 02.103) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 2 914 Palisana 2h 28.6m UT 11.5 3 42 39.486 36 37 32.95UCAC2 44616909 0.0 12.4 99 7.5 1.573 -2.782 -24.97 -23.2561 36.633 138.75 -14.84 2.4765 -0.35244 0.47180 -5.98874 -4.46471 -0.00174 -0.00196 2000 81.22230620121030.00000 48.880135255.846396 25.2196440.21263525 2.4593107 1.9363746 8.8 5.00.15 RATE 2.5555470 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.035 0.035 94 1.41 0.035 0 0-2 4 056226.0020121102_616909 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 25, 21:39 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org