IOTA/IOTA-ES occultation update for (506) Marion / UCAC2 42177119 event on 2007 Aug 30, 07:57 UT Visible from Argentina, Chile, Mexico, W USA Summary ------- On 2007 Aug 30 UT, the 106 km diameter asteroid (506) Marion will occult a 12.0 mag star in the constellation Pisces for observers along a path across Argentina, Chile, Mexico, W USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.1 mag to 13.9 mag (the magnitude of the asteroid) for at most 11.9 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: 86 * date and approx. time of event: 2007 Aug 30, 07:45 - 2007 Aug 30, 08:08 UT * magnitude of target star: 12.0 * magnitude drop [mag]: 2.1 * estimated maximum duration [s]: 11.9 * Moon: 95 % sunlit, 33° distance * Sun: 124° distance * rough path description: Argentina, Chile, Mexico, W USA The occultation path -------------------- * approximate projected width [km]: 114 * 1 sigma uncertainty interval [path widths]: +/- 0.58 * 1 sigma uncertainty interval [seconds]: +/- 5.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .039 +/- .032) * 1 sigma uncertainty ellipse (major, minor, PA): ( .039", .032", 83° ) * approx speed of asteroid's shadow [km/s]: 8.9070 * website for maps: http://lunar-occultations.com/iota/asteroids/astrndx.htm http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC2 42177119 by 506 Marion on 2007 Aug 30 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 - 67 5 10 -60 0 0 7 45 57 0 354 -27 - 66 3 12 - 68 7 15 ... .. .. - 69 19 28 - 67 17 34 -59 0 0 7 45 57 1 354 -28 - 66 17 23 - 68 17 54 - 65 7 41 - 69 28 3 - 67 30 7 -58 0 0 7 45 57 2 354 -29 - 66 31 34 - 68 28 47 - 65 23 46 - 69 37 2 - 67 42 47 -57 0 0 7 45 58 3 355 -29 - 66 45 46 - 68 39 55 - 65 39 46 - 69 46 23 - 67 55 36 -56 0 0 7 45 59 4 355 -30 - 67 0 1 - 68 51 17 - 65 55 41 - 69 56 4 - 68 8 32 -55 0 0 7 46 0 5 355 -31 - 67 14 19 - 69 2 53 - 66 11 32 - 70 6 6 - 68 21 37 -54 0 0 7 46 1 6 355 -31 - 67 28 40 - 69 14 42 - 66 27 21 - 70 16 26 - 68 34 51 -53 0 0 7 46 2 7 355 -32 - 67 43 5 - 69 26 44 - 66 43 9 - 70 27 5 - 68 48 14 -52 0 0 7 46 4 8 355 -32 - 67 57 34 - 69 39 0 - 66 58 56 - 70 38 2 - 69 1 45 -51 0 0 7 46 6 9 356 -33 - 68 12 9 - 69 51 27 - 67 14 44 - 70 49 16 - 69 15 25 -50 0 0 7 46 8 10 356 -34 - 68 26 49 - 70 4 8 - 67 30 33 - 71 0 47 - 69 29 14 -49 0 0 7 46 11 11 356 -34 - 68 41 34 - 70 17 1 - 67 46 24 - 71 12 35 - 69 43 13 -48 0 0 7 46 14 12 356 -35 - 68 56 26 - 70 30 6 - 68 2 17 - 71 24 38 - 69 57 21 -47 0 0 7 46 17 13 356 -35 - 69 11 24 - 70 43 24 - 68 18 14 - 71 36 57 - 70 11 39 -46 0 0 7 46 20 14 357 -36 - 69 26 30 - 70 56 54 - 68 34 14 - 71 49 32 - 70 26 6 -45 0 0 7 46 23 15 357 -37 - 69 41 42 - 71 10 37 - 68 50 19 - 72 2 22 - 70 40 44 -44 0 0 7 46 27 16 357 -37 - 69 57 2 - 71 24 32 - 69 6 28 - 72 15 28 - 70 55 32 -43 0 0 7 46 31 17 357 -38 - 70 12 30 - 71 38 39 - 69 22 43 - 72 28 48 - 71 10 30 -42 0 0 7 46 35 18 357 -38 - 70 28 7 - 71 52 59 - 69 39 4 - 72 42 24 - 71 25 39 -41 0 0 7 46 39 19 358 -39 - 70 43 52 - 72 7 32 - 69 55 31 - 72 56 15 - 71 40 59 -40 0 0 7 46 44 20 358 -40 - 70 59 46 - 72 22 17 - 70 12 5 - 73 10 20 - 71 56 30 -39 0 0 7 46 48 21 358 -40 - 71 15 50 - 72 37 15 - 70 28 46 - 73 24 41 - 72 12 12 -38 0 0 7 46 53 22 358 -41 - 71 32 3 - 72 52 27 - 70 45 35 - 73 39 16 - 72 28 6 -37 0 0 7 46 59 23 358 -41 - 71 48 26 - 73 7 51 - 71 2 32 - 73 54 6 - 72 44 11 -36 0 0 7 47 4 24 359 -42 - 72 4 59 - 73 23 29 - 71 19 37 - 74 9 12 - 73 0 28 -35 0 0 7 47 10 25 359 -43 - 72 21 43 - 73 39 20 - 71 36 51 - 74 24 33 - 73 16 58 -34 0 0 7 47 16 26 359 -43 - 72 38 37 - 73 55 25 - 71 54 15 - 74 40 9 - 73 33 41 -33 0 0 7 47 22 27 359 -44 - 72 55 43 - 74 11 44 - 72 11 48 - 74 56 0 - 73 50 36 -32 0 0 7 47 28 28 360 -44 - 73 13 0 - 74 28 17 - 72 29 31 - 75 12 8 - 74 7 44 -31 0 0 7 47 35 29 360 -45 - 73 30 30 - 74 45 4 - 72 47 25 - 75 28 31 - 74 25 6 -30 0 0 7 47 41 30 0 -45 - 73 48 11 - 75 2 6 - 73 5 29 - 75 45 9 - 74 42 41 -29 0 0 7 47 48 31 0 -46 - 74 6 5 - 75 19 23 - 73 23 45 - 76 2 4 - 75 0 31 -28 0 0 7 47 55 32 1 -46 - 74 24 12 - 75 36 55 - 73 42 13 - 76 19 16 - 75 18 34 -27 0 0 7 48 3 33 1 -47 - 74 42 33 - 75 54 42 - 74 0 52 - 76 36 44 - 75 36 53 -26 0 0 7 48 10 34 1 -47 - 75 1 7 - 76 12 45 - 74 19 44 - 76 54 29 - 75 55 26 -25 0 0 7 48 18 35 2 -48 - 75 19 55 - 76 31 4 - 74 38 49 - 77 12 31 - 76 14 15 -24 0 0 7 48 26 36 2 -48 - 75 38 57 - 76 49 39 - 74 58 8 - 77 30 51 - 76 33 20 -23 0 0 7 48 34 37 2 -49 - 75 58 15 - 77 8 32 - 75 17 40 - 77 49 29 - 76 52 41 -22 0 0 7 48 43 38 3 -49 - 76 17 48 - 77 27 41 - 75 37 26 - 78 8 24 - 77 12 19 -21 0 0 7 48 51 39 3 -50 - 76 37 36 - 77 47 8 - 75 57 28 - 78 27 39 - 77 32 14 -20 0 0 7 49 0 40 3 -50 - 76 57 41 - 78 6 52 - 76 17 44 - 78 47 12 - 77 52 26 -19 0 0 7 49 9 41 4 -51 - 77 18 2 - 78 26 56 - 76 38 16 - 79 7 5 - 78 12 56 -18 0 0 7 49 18 42 4 -51 - 77 38 41 - 78 47 18 - 76 59 5 - 79 27 17 - 78 33 45 -17 0 0 7 49 28 43 4 -52 - 77 59 37 - 79 7 59 - 77 20 10 - 79 47 50 - 78 54 52 -16 0 0 7 49 37 44 5 -52 - 78 20 52 - 79 29 0 - 77 41 32 - 80 8 43 - 79 16 20 -15 0 0 7 49 47 45 5 -52 - 78 42 25 - 79 50 21 - 78 3 12 - 80 29 58 - 79 38 7 -14 0 0 7 49 57 46 6 -53 - 79 4 17 - 80 12 3 - 78 25 11 - 80 51 34 - 80 0 15 -13 0 0 7 50 7 47 6 -53 - 79 26 30 - 80 34 7 - 78 47 28 - 81 13 33 - 80 22 44 -12 0 0 7 50 18 48 7 -54 - 79 49 3 - 80 56 33 - 79 10 5 - 81 35 55 - 80 45 36 -11 0 0 7 50 28 49 8 -54 - 80 11 57 - 81 19 22 - 79 33 3 - 81 58 41 - 81 8 50 -10 0 0 7 50 39 50 8 -54 - 80 35 13 - 81 42 34 - 79 56 21 - 82 21 51 - 81 32 27 - 9 0 0 7 50 49 51 9 -54 - 80 58 51 - 82 6 10 - 80 20 1 - 82 45 25 - 81 56 28 - 8 0 0 7 51 0 52 9 -55 - 81 22 53 - 82 30 11 - 80 44 4 - 83 9 26 - 82 20 54 - 7 0 0 7 51 12 53 10 -55 - 81 47 19 - 82 54 37 - 81 8 30 - 83 33 53 - 82 45 46 - 6 0 0 7 51 23 53 11 -55 - 82 12 10 - 83 19 30 - 81 33 20 - 83 58 48 - 83 11 5 - 5 0 0 7 51 34 54 12 -56 - 82 37 26 - 83 44 51 - 81 58 34 - 84 24 11 - 83 36 50 - 4 0 0 7 51 46 55 13 -56 - 83 3 9 - 84 10 39 - 82 24 14 - 84 50 3 - 84 3 5 - 3 0 0 7 51 58 56 13 -56 - 83 29 20 - 84 36 57 - 82 50 22 - 85 16 25 - 84 29 48 - 2 0 0 7 52 10 57 14 -56 - 83 56 0 - 85 3 45 - 83 16 56 - 85 43 19 - 84 57 3 - 1 0 0 7 52 22 58 15 -56 - 84 23 9 - 85 31 5 - 83 44 0 - 86 10 45 - 85 24 49 0 0 0 7 52 34 59 17 -56 - 84 50 49 - 85 58 57 - 84 11 33 - 86 38 44 - 85 53 8 1 0 0 7 52 46 59 18 -56 - 85 19 1 - 86 27 23 - 84 39 38 - 87 7 18 - 86 22 0 2 0 0 7 52 59 60 19 -57 - 85 47 46 - 86 56 24 - 85 8 14 - 87 36 29 - 86 51 29 3 0 0 7 53 12 61 20 -57 - 86 17 6 - 87 26 1 - 85 37 24 - 88 6 17 - 87 21 34 4 0 0 7 53 24 62 22 -57 - 86 47 2 - 87 56 16 - 86 7 9 - 88 36 44 Latitude Latitude Latitude Latitude - 89 0 0 7 7 46 7 54 5 64 27 -57 8 12 14 6 2 18 9 25 51 4 44 59 - 90 0 0 8 56 8 7 54 30 65 30 -56 9 58 47 7 52 34 11 10 24 6 37 35 - 91 0 0 10 40 6 7 54 53 66 33 -56 11 41 4 9 38 19 12 50 48 8 25 30 - 92 0 0 12 19 53 7 55 16 67 37 -56 13 19 15 11 19 45 14 27 14 10 8 58 - 93 0 0 13 55 39 7 55 39 68 41 -56 14 53 32 12 57 3 15 59 51 11 48 9 - 94 0 0 15 27 33 7 56 1 68 45 -55 16 24 2 14 30 25 17 28 48 13 23 17 - 95 0 0 16 55 47 7 56 22 69 49 -55 17 50 56 16 0 1 18 54 13 14 54 32 - 96 0 0 18 20 28 7 56 43 69 53 -54 19 14 23 17 26 0 20 16 16 16 22 5 - 97 0 0 19 41 47 7 57 3 69 57 -54 20 34 31 18 48 32 21 35 5 17 46 5 - 98 0 0 20 59 51 7 57 22 69 60 -54 21 51 28 20 7 45 22 50 47 19 6 41 - 99 0 0 22 14 49 7 57 41 69 64 -53 23 5 22 21 23 48 24 3 29 20 24 3 -100 0 0 23 26 48 7 57 59 68 67 -52 24 16 21 22 36 50 25 13 20 21 38 18 -101 0 0 24 35 56 7 58 17 68 70 -52 25 24 32 23 46 56 26 20 26 22 49 35 -102 0 0 25 42 20 7 58 34 67 73 -51 26 30 1 24 54 16 27 24 53 23 58 2 -103 0 0 26 46 6 7 58 51 67 76 -51 27 32 55 25 58 56 28 26 48 25 3 45 -104 0 0 27 47 21 7 59 7 66 78 -50 28 33 20 27 1 2 29 26 18 26 6 51 -105 0 0 28 46 11 7 59 23 66 80 -50 29 31 23 28 0 40 30 23 27 27 7 27 -106 0 0 29 42 42 7 59 38 65 82 -49 30 27 9 28 57 57 31 18 22 28 5 39 -107 0 0 30 37 0 7 59 52 64 84 -49 31 20 44 29 52 59 32 11 7 29 1 33 -108 0 0 31 29 9 8 0 7 64 85 -48 32 12 12 30 45 50 33 1 48 29 55 14 -109 0 0 32 19 15 8 0 20 63 86 -47 33 1 38 31 36 36 33 50 30 30 46 48 -110 0 0 33 7 23 8 0 34 62 87 -47 33 49 8 32 25 23 34 37 17 31 36 20 -111 0 0 33 53 37 8 0 47 61 88 -46 34 34 46 33 12 13 35 22 14 32 23 53 -112 0 0 34 38 1 8 0 59 61 89 -46 35 18 36 33 57 12 36 5 24 33 9 34 -113 0 0 35 20 40 8 1 12 60 90 -45 36 0 42 34 40 25 36 46 52 33 53 27 -114 0 0 36 1 37 8 1 24 59 91 -45 36 41 8 35 21 55 37 26 42 34 35 34 -115 0 0 36 40 57 8 1 35 58 91 -44 37 19 57 36 1 45 38 4 57 35 16 1 -116 0 0 37 18 43 8 1 46 58 92 -44 37 57 14 36 40 0 38 41 41 35 54 51 -117 0 0 37 54 58 8 1 57 57 92 -43 38 33 1 37 16 43 39 16 56 36 32 7 -118 0 0 38 29 45 8 2 8 56 92 -42 39 7 22 37 51 58 39 50 46 37 7 53 -119 0 0 39 3 8 8 2 18 55 92 -42 39 40 19 38 25 46 40 23 15 37 42 12 -120 0 0 39 35 9 8 2 28 54 92 -41 40 11 56 38 58 12 40 54 24 38 15 7 -121 0 0 40 5 51 8 2 38 54 92 -41 40 42 15 39 29 18 41 24 16 38 46 41 -122 0 0 40 35 17 8 2 47 53 92 -40 41 11 19 39 59 7 41 52 54 39 16 56 -123 0 0 41 3 30 8 2 57 52 92 -40 41 39 10 40 27 40 42 20 20 39 45 55 -124 0 0 41 30 30 8 3 5 51 92 -39 42 5 50 40 55 2 42 46 37 40 13 41 -125 0 0 41 56 22 8 3 14 51 92 -39 42 31 22 41 21 13 43 11 47 40 40 15 -126 0 0 42 21 6 8 3 23 50 92 -38 42 55 48 41 46 17 43 35 52 41 5 41 -127 0 0 42 44 46 8 3 31 49 92 -38 43 19 9 42 10 14 43 58 53 41 29 59 -128 0 0 43 7 22 8 3 39 49 92 -37 43 41 28 42 33 7 44 20 52 41 53 13 -129 0 0 43 28 56 8 3 47 48 91 -37 44 2 47 42 54 58 44 41 52 42 15 23 -130 0 0 43 49 31 8 3 55 47 91 -37 44 23 6 43 15 49 45 1 54 42 36 32 -131 0 0 44 9 8 8 4 2 46 91 -36 44 42 28 43 35 40 45 20 59 42 56 41 -132 0 0 44 27 48 8 4 10 46 90 -36 45 0 54 43 54 34 45 39 9 43 15 51 -133 0 0 44 45 33 8 4 17 45 90 -35 45 18 26 44 12 32 45 56 25 43 34 5 -134 0 0 45 2 24 8 4 24 44 89 -35 45 35 4 44 29 36 46 12 49 43 51 24 -135 0 0 45 18 22 8 4 31 44 89 -34 45 50 51 44 45 46 46 28 22 44 7 48 -136 0 0 45 33 29 8 4 37 43 89 -34 46 5 46 45 1 5 46 43 5 44 23 20 -137 0 0 45 47 45 8 4 44 42 88 -33 46 19 52 45 15 32 46 56 58 44 37 59 -138 0 0 46 1 13 8 4 50 42 88 -33 46 33 9 45 29 9 47 10 4 44 51 48 -139 0 0 46 13 51 8 4 57 41 87 -33 46 45 39 45 41 57 47 22 23 45 4 48 -140 0 0 46 25 43 8 5 3 40 87 -32 46 57 21 45 53 57 47 33 55 45 16 58 -141 0 0 46 36 48 8 5 9 40 86 -32 47 8 18 46 5 11 47 44 43 45 28 21 -142 0 0 46 47 7 8 5 15 39 86 -31 47 18 29 46 15 37 47 54 45 45 38 57 -143 0 0 46 56 41 8 5 20 38 85 -31 47 27 56 46 25 18 48 4 4 45 48 46 -144 0 0 47 5 30 8 5 26 38 85 -30 47 36 40 46 34 14 48 12 40 45 57 50 -145 0 0 47 13 36 8 5 32 37 84 -30 47 44 39 46 42 26 48 20 33 46 6 8 -146 0 0 47 20 58 8 5 37 36 83 -30 47 51 56 46 49 54 48 27 44 46 13 42 -147 0 0 47 27 38 8 5 42 36 83 -29 47 58 31 46 56 38 48 34 13 46 20 33 -148 0 0 47 33 35 8 5 47 35 82 -29 48 4 24 47 2 40 48 40 1 46 26 39 -149 0 0 47 38 51 8 5 53 34 82 -28 48 9 36 47 7 59 48 45 9 46 32 3 -150 0 0 47 43 25 8 5 58 34 81 -28 48 14 7 47 12 36 48 49 36 46 36 44 -151 0 0 47 47 17 8 6 2 33 80 -27 48 17 57 47 16 31 48 53 23 46 40 42 -152 0 0 47 50 29 8 6 7 33 80 -27 48 21 6 47 19 45 48 56 29 46 43 58 -153 0 0 47 52 59 8 6 12 32 79 -27 48 23 35 47 22 17 48 58 56 46 46 32 -154 0 0 47 54 49 8 6 17 31 79 -26 48 25 24 47 24 8 49 0 44 46 48 24 -155 0 0 47 55 58 8 6 21 31 78 -26 48 26 32 47 25 18 49 1 52 46 49 35 -156 0 0 47 56 27 8 6 26 30 77 -25 48 27 1 47 25 47 49 2 20 46 50 3 -157 0 0 47 56 15 8 6 30 29 77 -25 48 26 49 47 25 34 49 2 9 46 49 50 -158 0 0 47 55 22 8 6 34 29 76 -25 48 25 57 47 24 40 49 1 19 46 48 55 -159 0 0 47 53 49 8 6 39 28 75 -24 48 24 25 47 23 5 48 59 48 46 47 18 -160 0 0 47 51 34 8 6 43 27 75 -24 48 22 13 47 20 49 48 57 38 46 44 59 -161 0 0 47 48 39 8 6 47 27 74 -23 48 19 20 47 17 50 48 54 48 46 41 58 -162 0 0 47 45 2 8 6 51 26 73 -23 48 15 46 47 14 10 48 51 18 46 38 14 -163 0 0 47 40 43 8 6 55 25 73 -23 48 11 31 47 9 48 48 47 7 46 33 47 -164 0 0 47 35 42 8 6 58 25 72 -22 48 6 35 47 4 43 48 42 16 46 28 37 -165 0 0 47 29 59 8 7 2 24 71 -22 48 0 56 46 58 54 48 36 43 46 22 43 -166 0 0 47 23 32 8 7 6 23 71 -21 47 54 35 46 52 23 48 30 28 46 16 5 -167 0 0 47 16 22 8 7 9 23 70 -21 47 47 31 46 45 7 48 23 31 46 8 42 -168 0 0 47 8 28 8 7 13 22 69 -20 47 39 44 46 37 6 48 15 51 46 0 33 -169 0 0 46 59 50 8 7 16 21 69 -20 47 31 12 46 28 20 48 7 27 45 51 39 -170 0 0 46 50 25 8 7 20 21 68 -20 47 21 56 46 18 48 47 58 20 45 41 57 -171 0 0 46 40 15 8 7 23 20 67 -19 47 11 53 46 8 28 47 48 27 45 31 28 -172 0 0 46 29 17 8 7 26 19 67 -19 47 1 5 45 57 22 47 37 49 45 20 10 -173 0 0 46 17 31 8 7 29 19 66 -18 46 49 29 45 45 26 47 26 24 45 8 3 -174 0 0 46 4 56 8 7 32 18 65 -18 46 37 4 45 32 40 47 14 11 44 55 5 -175 0 0 45 51 31 8 7 35 17 65 -17 46 23 50 45 19 4 47 1 10 44 41 15 -176 0 0 45 37 14 8 7 38 17 64 -17 46 9 45 45 4 35 46 47 19 44 26 32 -177 0 0 45 22 5 8 7 41 16 63 -16 45 54 49 44 49 14 46 32 37 44 10 56 -178 0 0 45 6 2 8 7 43 15 63 -16 45 38 59 44 32 57 46 17 2 43 54 23 -179 0 0 44 49 4 8 7 46 14 62 -16 45 22 15 44 15 44 46 0 35 43 36 53 -180 0 0 44 31 9 8 7 49 14 61 -15 45 4 35 43 57 34 45 43 11 43 18 25 179 0 0 44 12 15 8 7 51 13 61 -15 44 45 57 43 38 24 45 24 51 42 58 56 178 0 0 43 52 21 8 7 53 12 60 -14 44 26 19 43 18 13 45 5 33 42 38 25 177 0 0 43 31 24 8 7 55 11 59 -14 44 5 41 42 56 58 44 45 15 42 16 49 176 0 0 43 9 24 8 7 57 10 59 -13 43 43 59 42 34 39 44 23 54 41 54 7 175 0 0 42 46 17 8 7 59 10 58 -13 43 21 11 42 11 12 44 1 29 41 30 17 174 0 0 42 22 1 8 8 1 9 57 -12 42 57 16 41 46 35 43 37 58 41 5 15 173 0 0 41 56 34 8 8 3 8 57 -12 42 32 12 41 20 46 43 13 18 40 39 0 172 0 0 41 29 54 8 8 4 7 56 -11 42 5 54 40 53 42 42 47 27 40 11 28 171 0 0 41 1 57 8 8 6 6 55 -11 41 38 21 40 25 20 42 20 22 39 42 37 170 0 0 40 32 40 8 8 7 5 55 -10 41 9 30 39 55 38 41 52 0 39 12 24 169 0 0 40 2 1 8 8 8 4 54 -10 40 39 18 39 24 31 41 22 18 38 40 45 168 0 0 39 29 55 8 8 9 3 53 -9 40 7 41 38 51 57 40 51 13 38 7 37 167 0 0 38 56 20 8 8 9 2 53 -9 39 34 36 38 17 51 40 18 42 37 32 55 166 0 0 38 21 11 8 8 10 1 52 -8 38 59 58 37 42 10 .. .. .. 36 56 36 165 0 0 37 44 25 8 8 10 0 52 -7 38 23 45 37 4 50 .. .. .. .. .. .. Data for the target star ------------------------ * name: UCAC2 42177119 * constellation : Pisces * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 01 22 21.8984 DE: +29 51 27.854 * position source: mpos:UCAC2 pm:UCAC2 * standard error: RA,DE ["]: ( .033, .029 ) * V mag [mag]: 12.0 * B mag [mag]: 0.0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (506) Marion approx. diameter [km]: 106 approx. diameter ["]: .065 distance from Earth [AU]: 2.26000 * orbital information: orbit source: Preston date of fit: 2007 Aug 28 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 610 number of rejected observations: 68 time covered by the observations: 1911 Sep 01 - 2007 Aug 20 1 sigma uncertainty ellipse (major, minor, PA): 0.020, 0.014, 64° remarks: * orbital elements for (506) Marion : Mean anomaly = 291.09970971 deg Arg. of pericenter = 147.32193451 deg Long. of node = 313.01672459 deg Inclination = 16.99404316 deg Eccentricity = 0.14695655 Semimajor axis = 3.04065516 AU Perihelion dist = 2.59381098 AU Mag: H = 8.64, G = 0.15 Epoch of elements : MJD 54342.33100000 TDT (2007 Aug 30.331) ------ occelmnt file for Occult BEGIN ----------------------------------- 2007 Aug 30 506 Marion 7h 57.1m UT 12.0 1 22 21.898 29 51 27.85UCAC2 42177119 0.0 13.9 106 11.9 2.260 -0.627 17.79 -76.808 29.853 60.94 9.09 7.9509 -.32721 -.14921 -2.09012 4.57228 -0.00376 -0.00282 2000 290.6664032007 828.00000147.321935313.016725 16.9940430.146956553.040655162.593810988.855 0.15 RATE 1.8588880 .0000000 .0000000 .0000000 .00000000 .00000000 .00000000 Meas 0.039 0.032 83.2 1.580 0.038 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2007 Aug 28, 22:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org