IOTA/IOTA-ES occultation update for (1554) Yugoslavia / TYC 0573-00319-1 event on 2012 Oct 12, 02:59 UT Visible from W Canada, W USA, Mexici Summary ------- On 2012 Oct 12 UT, the 21 km diameter asteroid (1554) Yugoslavia will occult a 11.5 mag star in the constellation Pegasus for observers along a path across W Canada, W USA, Mexici. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.4 mag to 14.9 mag (the magnitude of the asteroid) for at most 3.1 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: 32 * date and approx. time of event: 2012 Oct 12, 02:45 - 2012 Oct 12, 03:14 UT * geocentric midpoint of event [JD]: 2456212.62510417 * magnitude of target star: 11.5 * magnitude drop [mag]: 3.4 * estimated maximum duration [s]: 3.1 * Moon: 15 % sunlit, 167° distance * Sun: 142° distance * rough path description: W Canada, W USA, Mexici The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 2.11 * 1 sigma uncertainty interval [seconds]: +/- 7.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .051 +/- .054) * 1 sigma uncertainty ellipse (major, minor, PA): ( .054", .051", 355° ) * approx speed of asteroid's shadow [km/s]: 6.7978 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0573-00319-1 by 1554 Yugoslavia on 2012 Oct 12 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 -124 54 27 -64 0 0 3 14 25 16 36 -1 -125 10 10 -124 38 46 -126 17 7 -123 33 8 -123 34 26 -63 0 0 3 14 19 17 35 -2 -123 49 23 -123 19 32 -124 52 57 -122 17 5 -122 21 24 -62 0 0 3 14 13 18 34 -2 -122 35 40 -122 7 11 -123 36 16 -121 7 34 -121 14 28 -61 0 0 3 14 7 19 33 -3 -121 28 6 -121 0 51 -122 26 4 -120 3 46 -120 12 51 -60 0 0 3 14 0 20 32 -4 -120 25 56 -119 59 47 -121 21 31 -119 4 59 -119 15 56 -59 0 0 3 13 54 22 32 -5 -119 28 32 -119 3 22 -120 21 57 -118 10 38 -118 23 12 -58 0 0 3 13 47 23 31 -6 -118 35 20 -118 11 5 -119 26 49 -117 20 13 -117 34 11 -57 0 0 3 13 39 24 30 -6 -117 45 54 -117 22 29 -118 35 36 -116 33 20 -116 48 31 -56 0 0 3 13 32 25 30 -7 -116 59 51 -116 37 12 -117 47 56 -115 49 38 -116 5 51 -55 0 0 3 13 24 26 29 -8 -116 16 51 -115 54 53 -117 3 25 -115 8 46 -115 25 55 -54 0 0 3 13 16 27 29 -9 -115 36 35 -115 15 16 -116 21 47 -114 30 30 -114 48 28 -53 0 0 3 13 7 28 28 -10 -114 58 50 -114 38 7 -115 42 44 -113 54 35 -114 13 15 -52 0 0 3 12 59 29 28 -10 -114 23 20 -114 3 11 -115 6 4 -113 20 49 -113 40 6 -51 0 0 3 12 50 30 28 -11 -113 49 56 -113 30 17 -114 31 33 -112 49 0 -113 8 51 -50 0 0 3 12 41 31 28 -12 -113 18 26 -112 59 16 -113 59 1 -112 18 59 -112 39 19 -49 0 0 3 12 32 32 27 -12 -112 48 41 -112 29 58 -113 28 18 -111 50 38 -112 11 24 -48 0 0 3 12 22 33 27 -13 -112 20 33 -112 2 16 -112 59 16 -111 23 48 -111 44 57 -47 0 0 3 12 12 34 27 -14 -111 53 54 -111 36 1 -112 31 47 -110 58 23 -111 19 53 -46 0 0 3 12 2 35 27 -15 -111 28 39 -111 11 8 -112 5 44 -110 34 17 -110 56 5 -45 0 0 3 11 52 36 27 -15 -111 4 40 -110 47 30 -111 41 1 -110 11 23 -110 33 28 -44 0 0 3 11 42 37 27 -16 -110 41 54 -110 25 3 -111 17 32 -109 49 37 -110 11 58 -43 0 0 3 11 31 38 27 -17 -110 20 14 -110 3 42 -110 55 12 -109 28 55 -109 51 29 -42 0 0 3 11 20 39 27 -17 -109 59 36 -109 43 22 -110 33 57 -109 9 12 -109 31 58 -41 0 0 3 11 9 40 27 -18 -109 39 57 -109 24 0 -110 13 43 -108 50 25 -109 13 22 -40 0 0 3 10 57 41 27 -19 -109 21 13 -109 5 32 -109 54 26 -108 32 29 -108 55 37 -39 0 0 3 10 46 42 27 -19 -109 3 21 -108 47 54 -109 36 2 -108 15 23 -108 38 41 -38 0 0 3 10 34 43 27 -20 -108 46 17 -108 31 4 -109 18 28 -107 59 3 -108 22 29 -37 0 0 3 10 22 44 27 -20 -108 29 59 -108 15 0 -109 1 42 -107 43 26 -108 7 1 -36 0 0 3 10 10 45 27 -21 -108 14 25 -107 59 38 -108 45 40 -107 28 31 -107 52 14 -35 0 0 3 9 58 46 28 -22 -107 59 31 -107 44 56 -108 30 22 -107 14 14 -107 38 5 -34 0 0 3 9 45 47 28 -22 -107 45 17 -107 30 53 -108 15 43 -107 0 35 -107 24 33 -33 0 0 3 9 33 48 28 -23 -107 31 39 -107 17 26 -108 1 43 -106 47 31 -107 11 36 -32 0 0 3 9 20 49 28 -23 -107 18 37 -107 4 34 -107 48 19 -106 35 0 -106 59 12 -31 0 0 3 9 7 50 29 -24 -107 6 8 -106 52 15 -107 35 30 -106 23 1 -106 47 20 -30 0 0 3 8 54 51 29 -24 -106 54 12 -106 40 28 -107 23 14 -106 11 33 -106 35 58 -29 0 0 3 8 40 52 30 -25 -106 42 46 -106 29 11 -107 11 29 -106 0 34 -106 25 6 -28 0 0 3 8 27 53 30 -25 -106 31 50 -106 18 23 -107 0 16 -105 50 3 -106 14 42 -27 0 0 3 8 13 53 30 -26 -106 21 22 -106 8 2 -106 49 31 -105 39 59 -106 4 45 -26 0 0 3 7 59 54 31 -26 -106 11 21 -105 58 9 -106 39 14 -105 30 21 -105 55 14 -25 0 0 3 7 45 55 32 -27 -106 1 46 -105 48 41 -106 29 25 -105 21 8 -105 46 7 -24 0 0 3 7 31 56 32 -27 -105 52 37 -105 39 39 -106 20 2 -105 12 19 -105 37 26 -23 0 0 3 7 17 57 33 -28 -105 43 52 -105 31 0 -106 11 4 -105 3 54 -105 29 8 -22 0 0 3 7 2 58 34 -28 -105 35 31 -105 22 45 -106 2 30 -104 55 51 -105 21 12 -21 0 0 3 6 48 59 34 -29 -105 27 33 -105 14 52 -105 54 21 -104 48 10 -105 13 39 -20 0 0 3 6 33 60 35 -29 -105 19 57 -105 7 22 -105 46 34 -104 40 51 -105 6 28 -19 0 0 3 6 18 60 36 -30 -105 12 43 -105 0 13 -105 39 10 -104 33 52 -104 59 38 -18 0 0 3 6 4 61 37 -30 -105 5 51 -104 53 25 -105 32 8 -104 27 14 -104 53 8 -17 0 0 3 5 49 62 38 -30 -104 59 19 -104 46 58 -105 25 27 -104 20 55 -104 46 59 -16 0 0 3 5 33 63 39 -31 -104 53 8 -104 40 50 -105 19 8 -104 14 56 -104 41 10 -15 0 0 3 5 18 64 41 -31 -104 47 17 -104 35 3 -105 13 9 -104 9 17 -104 35 40 -14 0 0 3 5 3 64 42 -31 -104 41 46 -104 29 35 -105 7 30 -104 3 56 -104 30 30 -13 0 0 3 4 47 65 43 -32 -104 36 34 -104 24 26 -105 2 12 -103 58 54 -104 25 39 -12 0 0 3 4 32 66 45 -32 -104 31 41 -104 19 36 -104 57 13 -103 54 10 -104 21 6 -11 0 0 3 4 16 67 46 -32 -104 27 7 -104 15 5 -104 52 34 -103 49 44 -104 16 53 -10 0 0 3 4 1 67 48 -33 -104 22 53 -104 10 53 -104 48 14 -103 45 36 -104 12 57 - 9 0 0 3 3 45 68 50 -33 -104 18 56 -104 6 59 -104 44 13 -103 41 47 -104 9 21 - 8 0 0 3 3 29 69 52 -33 -104 15 19 -104 3 23 -104 40 32 -103 38 15 -104 6 2 - 7 0 0 3 3 13 69 54 -33 -104 11 59 -104 0 5 -104 37 9 -103 35 0 -104 3 2 - 6 0 0 3 2 57 70 56 -34 -104 8 59 -103 57 6 -104 34 5 -103 32 4 -104 0 20 - 5 0 0 3 2 41 70 58 -34 -104 6 16 -103 54 25 -104 31 21 -103 29 25 -103 57 57 - 4 0 0 3 2 25 71 61 -34 -104 3 53 -103 52 2 -104 28 55 -103 27 4 -103 55 52 - 3 0 0 3 2 9 71 63 -34 -104 1 47 -103 49 57 -104 26 49 -103 25 1 -103 54 6 - 2 0 0 3 1 53 72 66 -34 -104 0 1 -103 48 11 -104 25 1 -103 23 15 -103 52 38 - 1 0 0 3 1 37 72 69 -34 -103 58 33 -103 46 43 -104 23 33 -103 21 48 -103 51 29 0 0 0 3 1 21 72 72 -35 -103 57 24 -103 45 34 -104 22 24 -103 20 39 -103 50 39 1 0 0 3 1 4 72 75 -35 -103 56 34 -103 44 44 -104 21 35 -103 19 48 -103 50 8 2 0 0 3 0 48 73 78 -35 -103 56 4 -103 44 13 -104 21 6 -103 19 16 -103 49 57 3 0 0 3 0 32 73 81 -35 -103 55 53 -103 44 1 -104 20 57 -103 19 3 -103 50 5 4 0 0 3 0 15 73 84 -35 -103 56 2 -103 44 9 -104 21 8 -103 19 8 -103 50 34 5 0 0 2 59 59 73 88 -35 -103 56 31 -103 44 37 -104 21 40 -103 19 33 -103 51 23 6 0 0 2 59 43 73 91 -35 -103 57 20 -103 45 25 -104 22 32 -103 20 18 -103 52 32 7 0 0 2 59 26 73 94 -35 -103 58 31 -103 46 34 -104 23 47 -103 21 23 -103 54 3 8 0 0 2 59 10 72 97 -35 -104 0 3 -103 48 4 -104 25 23 -103 22 49 -103 55 56 9 0 0 2 58 54 72 100 -35 -104 1 56 -103 49 55 -104 27 21 -103 24 36 -103 58 10 10 0 0 2 58 38 72 103 -35 -104 4 12 -103 52 9 -104 29 42 -103 26 44 -104 0 48 11 0 0 2 58 21 71 106 -35 -104 6 51 -103 54 45 -104 32 27 -103 29 14 -104 3 48 12 0 0 2 58 5 71 108 -35 -104 9 53 -103 57 44 -104 35 36 -103 32 7 -104 7 13 13 0 0 2 57 49 71 111 -34 -104 13 20 -104 1 6 -104 39 9 -103 35 23 -104 11 2 14 0 0 2 57 33 70 113 -34 -104 17 10 -104 4 54 -104 43 8 -103 39 2 -104 15 16 15 0 0 2 57 17 70 116 -34 -104 21 27 -104 9 6 -104 47 32 -103 43 7 -104 19 57 16 0 0 2 57 0 69 118 -34 -104 26 9 -104 13 45 -104 52 24 -103 47 36 -104 25 4 17 0 0 2 56 44 68 120 -34 -104 31 19 -104 18 50 -104 57 43 -103 52 32 -104 30 39 18 0 0 2 56 28 68 122 -34 -104 36 57 -104 24 23 -105 3 31 -103 57 54 -104 36 43 19 0 0 2 56 12 67 123 -33 -104 43 3 -104 30 24 -105 9 48 -104 3 45 -104 43 17 20 0 0 2 55 57 66 125 -33 -104 49 40 -104 36 55 -105 16 36 -104 10 4 -104 50 22 21 0 0 2 55 41 66 127 -33 -104 56 47 -104 43 56 -105 23 56 -104 16 54 -104 57 58 22 0 0 2 55 25 65 128 -33 -105 4 27 -104 51 30 -105 31 49 -104 24 14 -105 6 8 23 0 0 2 55 9 64 129 -32 -105 12 40 -104 59 36 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53 139 -27 -108 3 9 -107 47 56 -108 35 23 -107 15 53 -108 14 46 37 0 0 2 51 41 52 139 -27 -108 22 30 -108 7 2 -108 55 15 -107 34 30 -108 35 9 38 0 0 2 51 27 51 140 -26 -108 43 1 -108 27 17 -109 16 18 -107 54 12 -108 56 44 39 0 0 2 51 13 50 140 -26 -109 4 44 -108 48 44 -109 38 36 -108 15 5 -109 19 37 40 0 0 2 50 59 49 140 -25 -109 27 46 -109 11 28 -110 2 15 -108 37 13 -109 43 52 41 0 0 2 50 46 48 140 -25 -109 52 10 -109 35 35 -110 27 19 -109 0 41 -110 9 36 42 0 0 2 50 32 47 140 -24 -110 18 4 -110 1 8 -110 53 54 -109 25 34 -110 36 54 43 0 0 2 50 19 46 140 -24 -110 45 32 -110 28 16 -111 22 7 -109 51 58 -111 5 52 44 0 0 2 50 6 45 140 -23 -111 14 42 -110 57 4 -111 52 5 -110 19 59 -111 36 40 45 0 0 2 49 53 44 140 -22 -111 45 41 -111 27 39 -112 23 55 -110 49 45 Latitude Latitude Latitude Latitude -113 0 0 47 25 57 2 49 23 41 140 -21 47 10 23 47 41 26 46 3 48 48 46 2 -114 0 0 48 58 37 2 49 4 40 139 -20 48 43 57 49 13 14 47 41 18 50 14 13 -115 0 0 50 22 45 2 48 47 38 139 -19 50 8 51 50 36 36 49 9 33 51 34 29 -116 0 0 51 39 34 2 48 32 37 138 -18 51 26 20 51 52 46 50 29 57 52 47 56 -117 0 0 52 50 4 2 48 19 35 138 -17 52 37 25 53 2 40 51 43 35 53 55 28 -118 0 0 53 55 2 2 48 6 34 137 -16 53 42 54 54 7 7 52 51 19 54 57 47 -119 0 0 54 55 7 2 47 55 33 136 -16 54 43 27 55 6 45 53 53 53 55 55 30 -120 0 0 55 50 52 2 47 45 32 136 -15 55 39 38 56 2 5 54 51 52 56 49 7 -121 0 0 56 42 45 2 47 36 31 135 -14 56 31 53 56 53 36 55 45 46 57 39 4 -122 0 0 57 31 9 2 47 27 30 134 -13 57 20 38 57 41 39 56 36 0 58 25 42 -123 0 0 58 16 24 2 47 19 29 133 -13 58 6 12 58 26 35 57 22 55 59 9 19 -124 0 0 58 58 47 2 47 12 28 133 -12 58 48 53 59 8 41 58 6 51 59 50 13 -125 0 0 59 38 34 2 47 5 27 132 -12 59 28 55 59 48 11 58 48 2 60 28 38 -126 0 0 60 15 57 2 46 59 26 131 -11 60 6 34 60 25 20 59 26 44 61 4 45 -127 0 0 60 51 9 2 46 53 26 130 -10 60 41 59 61 0 18 60 3 9 61 38 46 -128 0 0 61 24 20 2 46 48 25 129 -10 61 15 23 61 33 16 60 37 27 62 10 50 -129 0 0 61 55 38 2 46 43 24 128 -9 61 46 53 62 4 22 61 9 48 62 41 7 -130 0 0 62 25 12 2 46 38 24 128 -9 62 16 38 62 33 46 61 40 21 63 9 44 -131 0 0 62 53 10 2 46 34 23 127 -8 62 44 46 63 1 33 62 9 13 63 36 48 -132 0 0 63 19 37 2 46 29 22 126 -8 63 11 23 63 27 50 62 36 32 64 2 25 -133 0 0 63 44 40 2 46 25 22 125 -8 63 36 35 63 52 44 63 2 23 64 26 41 -134 0 0 64 8 24 2 46 22 21 124 -7 64 0 28 64 16 20 63 26 53 64 49 41 -135 0 0 64 30 54 2 46 18 21 123 -7 64 23 6 64 38 42 63 50 6 65 11 29 -136 0 0 64 52 15 2 46 15 20 122 -6 64 44 35 64 59 55 64 12 6 65 32 10 -137 0 0 65 12 30 2 46 12 19 121 -6 65 4 57 65 20 3 64 32 59 65 51 48 -138 0 0 65 31 43 2 46 9 19 120 -6 65 24 17 65 39 9 64 52 48 66 10 27 -139 0 0 65 49 58 2 46 6 18 120 -5 65 42 38 65 57 17 65 11 36 66 28 8 -140 0 0 66 7 17 2 46 3 18 119 -5 66 0 3 66 14 30 65 29 27 66 44 56 -141 0 0 66 23 43 2 46 1 17 118 -4 66 16 35 66 30 51 65 46 23 67 0 53 -142 0 0 66 39 20 2 45 58 17 117 -4 66 32 17 66 46 22 66 2 28 67 16 2 -143 0 0 66 54 8 2 45 56 16 116 -4 66 47 11 67 1 6 66 17 43 67 30 24 -144 0 0 67 8 12 2 45 54 16 115 -3 67 1 19 67 15 4 66 32 12 67 44 2 -145 0 0 67 21 32 2 45 52 16 114 -3 67 14 43 67 28 20 66 45 56 67 56 59 -146 0 0 67 34 10 2 45 50 15 113 -3 67 27 26 67 40 54 66 58 56 68 9 15 -147 0 0 67 46 8 2 45 48 15 112 -2 67 39 28 67 52 48 67 11 16 68 20 52 -148 0 0 67 57 29 2 45 46 14 111 -2 67 50 52 68 4 5 67 22 56 68 31 53 -149 0 0 68 8 12 2 45 44 14 110 -2 68 1 39 68 14 45 67 33 59 68 42 18 -150 0 0 68 18 20 2 45 43 13 109 -1 68 11 51 68 24 49 67 44 25 68 52 8 -151 0 0 68 27 54 2 45 41 13 109 -1 68 21 28 68 34 20 67 54 16 69 1 26 -152 0 0 68 36 55 2 45 39 13 108 -1 68 30 32 68 43 18 68 3 33 69 10 11 -153 0 0 68 45 25 2 45 38 12 107 -1 68 39 4 68 51 45 68 12 17 69 18 26 -154 0 0 68 53 23 2 45 37 12 106 0 68 47 5 68 59 40 68 20 29 69 26 10 Uncertainty in time = +/- 7 secs Prediction of 2012 Oct 8.0 Data for the target star ------------------------ * name: TYC 0573-00319-1 * constellation : Pegasus * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 22 37 33.6711 DE: +05 22 34.611 * position source: mpos:UCAC4 pm:UCAC4 * standard error: RA,DE ["]: ( .027, .045 ) * V mag [mag]: 11.5 * B mag [mag]: 13.0 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1554) Yugoslavia approx. diameter [km]: 21 approx. diameter ["]: .024 distance from Earth [AU]: 1.22300 * orbital information: orbit source: Preston date of fit: 2012 Oct 07 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 853 number of rejected observations: 47 time covered by the observations: 1932 Dec 23 - 2012 Oct 01 1 sigma uncertainty ellipse (major, minor, PA): 0.043, 0.031, 74° remarks: * orbital elements for (1554) Yugoslavia : Mean anomaly = 6.52942264 deg Arg. of pericenter = 131.49198212 deg Long. of node = 217.28681166 deg Inclination = 12.15297573 deg Eccentricity = 0.19971691 Semimajor axis = 2.61946429 AU Perihelion dist = 2.09631298 AU Mag: H = 11.16, G = 0.15 Epoch of elements : MJD 56212.12500000 TDT (2012 Oct 12.125) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Oct 12 1554 Yugoslavia 3h 0.1m UT 11.5 22 37 33.671 5 22 34.61TYC 0573-00319-1 13.1 14.9 21 3.1 1.223 0.093 -27.54 -86.7433 5.384 131.58 -7.52 3.0025 -0.29589 -0.01464 0.18977 -3.83220 0.00331 0.00030 2000 6.03540320121010.00000131.491982217.286812 12.1529760.19971691 2.6194643 2.096313011.9 5.00.15 RATE 2.3247990 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.054 0.051 355 3.11 0.050 0 0 1 1 056208.0020121012_0319-1 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 07, 18:32 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org