IOTA/IOTA-ES occultation update for (469) Argentina / 2UCAC 44818127 event on 2012 Nov 06, 03:58 UT Visible from USA, Mexico Summary ------- On 2012 Nov 06 UT, the 123 km diameter asteroid (469) Argentina will occult a 12.6 mag star in the constellation Auriga for observers along a path across USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.7 mag to 14.0 mag (the magnitude of the asteroid) for at most 26.9 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: 78 * date and approx. time of event: 2012 Nov 06, 03:37 - 2012 Nov 06, 04:17 UT * geocentric midpoint of event [JD]: 2456237.6648125 * magnitude of target star: 12.6 * magnitude drop [mag]: 1.7 * estimated maximum duration [s]: 26.9 * Moon: 59 % sunlit, 33° distance * Sun: 127° distance * rough path description: USA, Mexico The occultation path -------------------- * approximate projected width [km]: 144 * 1 sigma uncertainty interval [path widths]: +/- 0.71 * 1 sigma uncertainty interval [seconds]: +/- 17.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- .049 +/- .047) * 1 sigma uncertainty ellipse (major, minor, PA): ( .049", .047", 92° ) * approx speed of asteroid's shadow [km/s]: 4.5678 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of 2UCAC 44818127 by 469 Argentina on 2012 Nov 6 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 - 4 51 38 -52 0 0 3 37 23 1 2 -8 - 3 46 58 - 5 56 48 ... .. .. - 7 30 14 - 4 50 10 -51 0 0 3 37 24 2 2 -8 - 3 46 52 - 5 53 57 ... .. .. - 7 25 23 - 4 49 52 -50 0 0 3 37 25 3 2 -9 - 3 47 51 - 5 52 21 ... .. .. - 7 21 55 - 4 50 41 -49 0 0 3 37 26 4 2 -10 - 3 49 52 - 5 51 57 - 2 24 12 - 7 19 46 - 4 52 33 -48 0 0 3 37 28 5 2 -10 - 3 52 51 - 5 52 41 - 2 28 46 - 7 18 50 - 4 55 25 -47 0 0 3 37 31 6 2 -11 - 3 56 47 - 5 54 28 - 2 34 10 - 7 19 4 - 4 59 14 -46 0 0 3 37 34 7 2 -12 - 4 1 35 - 5 57 16 - 2 40 23 - 7 20 24 - 5 3 57 -45 0 0 3 37 37 8 2 -12 - 4 7 15 - 6 1 2 - 2 47 22 - 7 22 47 - 5 9 32 -44 0 0 3 37 41 9 2 -13 - 4 13 44 - 6 5 43 - 2 55 6 - 7 26 11 - 5 15 58 -43 0 0 3 37 45 10 2 -13 - 4 21 0 - 6 11 18 - 3 3 32 - 7 30 32 - 5 23 12 -42 0 0 3 37 50 11 2 -14 - 4 29 1 - 6 17 44 - 3 12 40 - 7 35 49 - 5 31 13 -41 0 0 3 37 56 12 2 -15 - 4 37 47 - 6 24 59 - 3 22 28 - 7 41 59 - 5 39 59 -40 0 0 3 38 2 13 2 -16 - 4 47 15 - 6 33 3 - 3 32 56 - 7 49 1 - 5 49 29 -39 0 0 3 38 8 14 2 -16 - 4 57 25 - 6 41 52 - 3 44 2 - 7 56 53 - 5 59 42 -38 0 0 3 38 15 15 2 -17 - 5 8 15 - 6 51 27 - 3 55 45 - 8 5 34 - 6 10 36 -37 0 0 3 38 23 16 3 -18 - 5 19 45 - 7 1 46 - 4 8 5 - 8 15 1 - 6 22 12 -36 0 0 3 38 30 17 3 -18 - 5 31 54 - 7 12 48 - 4 21 1 - 8 25 15 - 6 34 27 -35 0 0 3 38 39 18 3 -19 - 5 44 41 - 7 24 32 - 4 34 32 - 8 36 13 - 6 47 22 -34 0 0 3 38 48 19 3 -20 - 5 58 6 - 7 36 57 - 4 48 38 - 8 47 55 - 7 0 55 -33 0 0 3 38 57 20 3 -20 - 6 12 7 - 7 50 3 - 5 3 18 - 9 0 21 - 7 15 7 -32 0 0 3 39 7 21 3 -21 - 6 26 45 - 8 3 48 - 5 18 33 - 9 13 29 - 7 29 57 -31 0 0 3 39 17 22 4 -22 - 6 41 59 - 8 18 13 - 5 34 21 - 9 27 19 - 7 45 24 -30 0 0 3 39 28 23 4 -23 - 6 57 48 - 8 33 17 - 5 50 43 - 9 41 50 - 8 1 27 -29 0 0 3 39 39 24 4 -23 - 7 14 13 - 8 48 59 - 6 7 38 - 9 57 2 - 8 18 8 -28 0 0 3 39 51 25 4 -24 - 7 31 14 - 9 5 20 - 6 25 7 - 10 12 54 - 8 35 26 -27 0 0 3 40 3 26 4 -25 - 7 48 50 - 9 22 19 - 6 43 9 - 10 29 27 - 8 53 20 -26 0 0 3 40 16 26 5 -26 - 8 7 1 - 9 39 56 - 7 1 44 - 10 46 40 - 9 11 50 -25 0 0 3 40 29 27 5 -26 - 8 25 47 - 9 58 11 - 7 20 52 - 11 4 32 - 9 30 57 -24 0 0 3 40 43 28 5 -27 - 8 45 8 - 10 17 4 - 7 40 34 - 11 23 5 - 9 50 41 -23 0 0 3 40 57 29 6 -28 - 9 5 5 - 10 36 35 - 8 0 49 - 11 42 17 - 10 11 2 -22 0 0 3 41 11 30 6 -29 - 9 25 38 - 10 56 44 - 8 21 39 - 12 2 10 - 10 32 0 -21 0 0 3 41 26 31 6 -29 - 9 46 46 - 11 17 31 - 8 43 2 - 12 22 43 - 10 53 35 -20 0 0 3 41 42 32 7 -30 - 10 8 30 - 11 38 57 - 9 5 0 - 12 43 56 - 11 15 48 -19 0 0 3 41 57 33 7 -31 - 10 30 51 - 12 1 2 - 9 27 32 - 13 5 49 - 11 38 39 -18 0 0 3 42 14 34 7 -32 - 10 53 49 - 12 23 46 - 9 50 40 - 13 28 24 - 12 2 8 -17 0 0 3 42 31 35 8 -33 - 11 17 24 - 12 47 10 - 10 14 23 - 13 51 40 - 12 26 16 -16 0 0 3 42 48 36 8 -33 - 11 41 37 - 13 11 14 - 10 38 42 - 14 15 39 - 12 51 4 -15 0 0 3 43 6 37 9 -34 - 12 6 28 - 13 35 59 - 11 3 38 - 14 40 19 - 13 16 32 -14 0 0 3 43 24 38 9 -35 - 12 31 58 - 14 1 25 - 11 29 12 - 15 5 43 - 13 42 41 -13 0 0 3 43 42 39 9 -36 - 12 58 8 - 14 27 34 - 11 55 24 - 15 31 51 - 14 9 32 -12 0 0 3 44 1 40 10 -37 - 13 24 59 - 14 54 25 - 12 22 14 - 15 58 44 - 14 37 6 -11 0 0 3 44 21 41 10 -37 - 13 52 30 - 15 22 0 - 12 49 44 - 16 26 22 - 15 5 22 -10 0 0 3 44 41 42 11 -38 - 14 20 45 - 15 50 20 - 13 17 55 - 16 54 47 - 15 34 24 - 9 0 0 3 45 1 43 12 -39 - 14 49 42 - 16 19 26 - 13 46 47 - 17 23 59 - 16 4 11 - 8 0 0 3 45 22 43 12 -40 - 15 19 24 - 16 49 18 - 14 16 22 - 17 54 1 - 16 34 44 - 7 0 0 3 45 43 44 13 -41 - 15 49 51 - 17 19 59 - 14 46 41 - 18 24 52 - 17 6 6 - 6 0 0 3 46 5 45 14 -42 - 16 21 5 - 17 51 29 - 15 17 44 - 18 56 35 - 17 38 17 - 5 0 0 3 46 27 46 14 -42 - 16 53 7 - 18 23 50 - 15 49 34 - 19 29 11 - 18 11 20 - 4 0 0 3 46 50 47 15 -43 - 17 25 58 - 18 57 4 - 16 22 11 - 20 2 41 - 18 45 15 - 3 0 0 3 47 13 48 16 -44 - 17 59 41 - 19 31 11 - 16 55 38 - 20 37 7 - 19 20 4 - 2 0 0 3 47 36 49 17 -45 - 18 34 17 - 20 6 15 - 17 29 55 - 21 12 32 - 19 55 49 - 1 0 0 3 48 0 49 18 -46 - 19 9 47 - 20 42 16 - 18 5 5 - 21 48 57 - 20 32 33 0 0 0 3 48 24 50 19 -47 - 19 46 14 - 21 19 17 - 18 41 9 - 22 26 25 - 21 10 17 1 0 0 3 48 49 51 20 -48 - 20 23 39 - 21 57 21 - 19 18 9 - 23 4 57 Latitude Latitude Latitude Latitude - 23 0 0 3 45 35 3 49 59 53 23 -50 4 54 21 2 35 15 6 29 33 0 52 23 - 24 0 0 5 10 57 3 50 37 54 24 -51 6 17 52 4 2 35 7 50 40 2 22 48 - 25 0 0 6 32 54 3 51 13 55 26 -53 7 38 8 5 26 22 9 8 42 3 49 23 - 26 0 0 7 51 39 3 51 50 55 28 -54 8 55 19 6 46 47 10 23 48 5 12 23 - 27 0 0 9 7 20 3 52 25 56 30 -55 10 9 32 8 4 1 11 36 6 6 32 0 - 28 0 0 10 20 8 3 53 0 57 32 -56 11 20 58 9 18 15 12 45 43 7 48 26 - 29 0 0 11 30 9 3 53 34 57 34 -57 12 29 43 10 29 37 13 52 46 9 1 51 - 30 0 0 12 37 32 3 54 8 58 35 -58 13 35 54 11 38 15 14 57 21 10 12 24 - 31 0 0 13 42 24 3 54 41 58 37 -59 14 39 39 12 44 18 15 59 36 11 20 13 - 32 0 0 14 44 50 3 55 13 58 39 -60 15 41 2 13 47 51 16 59 34 12 25 25 - 33 0 0 15 44 58 3 55 45 59 41 -61 16 40 10 14 49 1 17 57 21 13 28 9 - 34 0 0 16 42 52 3 56 16 59 43 -62 17 37 8 15 47 54 18 53 3 14 28 31 - 35 0 0 17 38 38 3 56 46 59 45 -63 18 32 1 16 44 35 19 46 44 15 26 35 - 36 0 0 18 32 21 3 57 16 59 47 -64 19 24 53 17 39 10 20 38 28 16 22 29 - 37 0 0 19 24 5 3 57 45 59 48 -65 20 15 50 18 31 44 21 28 19 17 16 16 - 38 0 0 20 13 55 3 58 13 59 50 -65 21 4 54 19 22 21 22 16 22 18 8 3 - 39 0 0 21 1 54 3 58 41 59 51 -66 21 52 10 20 11 5 23 2 39 18 57 53 - 40 0 0 21 48 7 3 59 9 58 53 -67 22 37 42 20 58 0 23 47 15 19 45 51 - 41 0 0 22 32 36 3 59 35 58 54 -67 23 21 32 21 43 10 24 30 12 20 32 1 - 42 0 0 23 15 26 4 0 2 58 56 -68 24 3 45 22 26 38 25 11 34 21 16 26 - 43 0 0 23 56 40 4 0 27 58 57 -69 24 44 24 23 8 28 25 51 24 21 59 10 - 44 0 0 24 36 21 4 0 52 57 58 -69 25 23 31 23 48 43 26 29 45 22 40 16 - 45 0 0 25 14 31 4 1 17 57 59 -70 26 1 9 24 27 26 27 6 39 23 19 48 - 46 0 0 25 51 13 4 1 41 57 60 -70 26 37 20 25 4 40 27 42 8 23 57 48 - 47 0 0 26 26 30 4 2 5 56 61 -71 27 12 8 25 40 28 28 16 16 24 34 20 - 48 0 0 27 0 25 4 2 28 56 62 -71 27 45 35 26 14 51 28 49 5 25 9 25 - 49 0 0 27 32 59 4 2 51 55 63 -71 28 17 43 26 47 52 29 20 36 25 43 6 - 50 0 0 28 4 16 4 3 13 55 64 -72 28 48 34 27 19 35 29 50 52 26 15 27 - 51 0 0 28 34 16 4 3 35 54 64 -72 29 18 10 27 50 0 30 19 55 26 46 28 - 52 0 0 29 3 2 4 3 56 54 65 -72 29 46 33 28 19 10 30 47 46 27 16 12 - 53 0 0 29 30 36 4 4 17 53 66 -73 30 13 46 28 47 6 31 14 28 27 44 42 - 54 0 0 29 57 0 4 4 38 53 66 -73 30 39 49 29 13 52 31 40 3 28 11 58 - 55 0 0 30 22 16 4 4 58 52 67 -73 31 4 44 29 39 27 32 4 31 28 38 4 - 56 0 0 30 46 24 4 5 18 51 67 -73 31 28 34 30 3 55 32 27 54 29 2 59 - 57 0 0 31 9 27 4 5 37 51 67 -73 31 51 19 30 27 16 32 50 14 29 26 47 - 58 0 0 31 31 26 4 5 56 50 68 -73 32 13 1 30 49 32 33 11 32 29 49 29 - 59 0 0 31 52 22 4 6 15 50 68 -73 32 33 41 31 10 45 33 31 50 30 11 5 - 60 0 0 32 12 17 4 6 33 49 68 -73 32 53 20 31 30 55 33 51 8 30 31 38 - 61 0 0 32 31 11 4 6 52 48 68 -73 33 12 0 31 50 4 34 9 29 30 51 9 - 62 0 0 32 49 7 4 7 9 48 68 -73 33 29 42 32 8 13 34 26 52 31 9 38 - 63 0 0 33 6 4 4 7 27 47 69 -73 33 46 27 32 25 24 34 43 19 31 27 7 - 64 0 0 33 22 4 4 7 44 47 69 -73 34 2 15 32 41 36 34 58 50 31 43 38 - 65 0 0 33 37 9 4 8 1 46 69 -72 34 17 8 32 56 52 35 13 28 31 59 10 - 66 0 0 33 51 18 4 8 17 45 69 -72 34 31 7 33 11 12 35 27 12 32 13 45 - 67 0 0 34 4 33 4 8 33 45 69 -72 34 44 12 33 24 37 35 40 4 32 27 24 - 68 0 0 34 16 54 4 8 49 44 69 -72 34 56 24 33 37 7 35 52 3 32 40 8 - 69 0 0 34 28 22 4 9 5 43 68 -71 35 7 44 33 48 43 36 3 12 32 51 56 - 70 0 0 34 38 58 4 9 20 43 68 -71 35 18 12 33 59 27 36 13 29 33 2 51 - 71 0 0 34 48 42 4 9 35 42 68 -71 35 27 50 34 9 18 36 22 57 33 12 52 - 72 0 0 34 57 34 4 9 50 41 68 -70 35 36 36 34 18 16 36 31 35 33 21 59 - 73 0 0 35 5 36 4 10 5 41 68 -70 35 44 33 34 26 24 36 39 24 33 30 15 - 74 0 0 35 12 48 4 10 19 40 68 -70 35 51 39 34 33 40 36 46 24 33 37 38 - 75 0 0 35 19 9 4 10 33 39 67 -69 35 57 56 34 40 6 36 52 35 33 44 9 - 76 0 0 35 24 40 4 10 47 39 67 -69 36 3 25 34 45 40 36 57 59 33 49 49 - 77 0 0 35 29 22 4 11 1 38 67 -69 36 8 4 34 50 25 37 2 34 33 54 38 - 78 0 0 35 33 15 4 11 14 37 67 -68 36 11 54 34 54 20 37 6 22 33 58 35 - 79 0 0 35 36 18 4 11 28 37 66 -68 36 14 56 34 57 25 37 9 22 34 1 42 - 80 0 0 35 38 33 4 11 41 36 66 -67 36 17 10 34 59 39 37 11 34 34 3 58 - 81 0 0 35 39 58 4 11 54 35 66 -67 36 18 35 35 1 4 37 12 59 34 5 22 - 82 0 0 35 40 33 4 12 6 35 66 -66 36 19 11 35 1 39 37 13 37 34 5 56 - 83 0 0 35 40 20 4 12 19 34 65 -66 36 18 59 35 1 24 37 13 26 34 5 39 - 84 0 0 35 39 17 4 12 31 33 65 -65 36 17 58 35 0 19 37 12 28 34 4 31 - 85 0 0 35 37 24 4 12 43 33 65 -65 36 16 9 34 58 24 37 10 42 34 2 31 - 86 0 0 35 34 42 4 12 54 32 64 -64 36 13 30 34 55 38 37 8 8 33 59 39 - 87 0 0 35 31 9 4 13 6 31 64 -64 36 10 1 34 52 0 37 4 45 33 55 56 - 88 0 0 35 26 46 4 13 17 30 63 -63 36 5 43 34 47 32 37 0 34 33 51 20 - 89 0 0 35 21 31 4 13 29 30 63 -63 36 0 34 34 42 11 36 55 33 33 45 50 - 90 0 0 35 15 25 4 13 39 29 63 -62 35 54 34 34 35 59 36 49 42 33 39 28 - 91 0 0 35 8 27 4 13 50 28 62 -62 35 47 43 34 28 53 36 43 1 33 32 11 - 92 0 0 35 0 35 4 14 1 27 62 -61 35 40 0 34 20 53 36 35 29 33 23 59 - 93 0 0 34 51 51 4 14 11 27 61 -61 35 31 24 34 11 59 36 27 6 33 14 52 - 94 0 0 34 42 12 4 14 21 26 61 -60 35 21 55 34 2 10 36 17 50 33 4 48 - 95 0 0 34 31 37 4 14 31 25 61 -59 35 11 31 33 51 25 36 7 41 32 53 47 - 96 0 0 34 20 7 4 14 41 24 60 -59 35 0 12 33 39 43 35 56 38 32 41 47 - 97 0 0 34 7 39 4 14 50 24 60 -58 34 47 57 33 27 2 35 44 39 32 28 48 - 98 0 0 33 54 13 4 15 0 23 59 -58 34 34 44 33 13 22 35 31 45 32 14 48 - 99 0 0 33 39 47 4 15 9 22 59 -57 34 20 33 32 58 41 35 17 53 31 59 45 -100 0 0 33 24 20 4 15 18 21 58 -56 34 5 21 32 42 59 35 3 3 31 43 39 -101 0 0 33 7 51 4 15 26 20 58 -56 33 49 9 32 26 13 34 47 13 31 26 28 -102 0 0 32 50 18 4 15 35 19 57 -55 33 31 53 32 8 21 34 30 22 31 8 10 -103 0 0 32 31 39 4 15 43 19 57 -54 33 13 33 31 49 23 34 12 28 30 48 44 -104 0 0 32 11 53 4 15 50 18 56 -54 32 54 7 31 29 17 33 53 29 30 28 7 -105 0 0 31 50 58 4 15 58 17 56 -53 32 33 33 31 7 59 33 33 24 30 6 17 -106 0 0 31 28 51 4 16 5 16 56 -52 32 11 49 30 45 29 33 12 11 29 43 13 -107 0 0 31 5 30 4 16 12 15 55 -52 31 48 52 30 21 44 32 49 48 29 18 51 -108 0 0 30 40 54 4 16 19 14 55 -51 31 24 41 29 56 41 32 26 12 28 53 9 -109 0 0 30 14 58 4 16 25 13 54 -50 30 59 13 29 30 18 32 1 21 28 26 4 -110 0 0 29 47 42 4 16 32 12 54 -49 30 32 25 29 2 31 31 35 12 27 57 34 -111 0 0 29 19 1 4 16 37 11 53 -49 30 4 15 28 33 19 31 7 44 27 27 34 -112 0 0 28 48 52 4 16 43 10 53 -48 29 34 39 28 2 36 30 38 52 26 56 2 -113 0 0 28 17 12 4 16 47 9 52 -47 29 3 33 27 30 21 30 8 34 26 22 54 -114 0 0 27 43 57 4 16 52 8 52 -46 28 30 55 26 56 28 29 36 46 25 48 5 -115 0 0 27 9 4 4 16 56 7 51 -45 27 56 41 26 20 54 29 3 24 25 11 30 -116 0 0 26 32 27 4 17 0 6 51 -45 27 20 45 25 43 34 28 28 26 24 33 6 -117 0 0 25 54 2 4 17 3 5 51 -44 26 43 5 25 4 23 27 51 45 23 52 47 -118 0 0 25 13 44 4 17 5 4 50 -43 26 3 34 24 23 16 27 13 18 23 10 26 -119 0 0 24 31 27 4 17 7 3 50 -42 25 22 7 23 40 6 26 33 0 22 25 58 -120 0 0 23 47 5 4 17 9 2 49 -41 24 38 39 22 54 48 .. .. .. 21 39 16 -121 0 0 23 0 31 4 17 9 0 49 -40 23 53 3 .. .. .. .. .. .. .. .. .. Uncertainty in time = +/- 20 secs Prediction of 2012 Oct 26.0 Data for the target star ------------------------ * name: 2UCAC 44818127 * constellation : Auriga * J2000 position with proper motion to date of event [h,m,s ; °,',"] RA: 06 28 05.6187 DE: +37 27 13.692 * position source: mpos:UCAC4 pm:UCAC4 * standard error: RA,DE ["]: ( .043, .045 ) * V mag [mag]: 12.6 * B mag [mag]: 0.0 * Diameter [mas]: 0 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (469) Argentina approx. diameter [km]: 123 approx. diameter ["]: .068 distance from Earth [AU]: 2.50900 * orbital information: orbit source: Preston date of fit: 2012 Oct 25 source of used astrometry: FASTT MPC (via Astdys) number of used observations: 1046 number of rejected observations: 75 time covered by the observations: 1907 Apr 04 - 2012 Oct 09 1 sigma uncertainty ellipse (major, minor, PA): 0.023, 0.014, 99° remarks: * orbital elements for (469) Argentina : Mean anomaly = 277.06086518 deg Arg. of pericenter = 208.75244419 deg Long. of node = 333.56134244 deg Inclination = 11.58425245 deg Eccentricity = 0.15978459 Semimajor axis = 3.18429139 AU Perihelion dist = 2.67549071 AU Mag: H = 8.62, G = 0.15 Epoch of elements : MJD 56237.16500000 TDT (2012 Nov 06.165) ------ occelmnt file for Occult BEGIN ----------------------------------- 2012 Nov 6 469 Argentina 3h 57.3m UT 12.6 6 28 5.619 37 27 13.692UCAC 44818127 0.0 14.0 123 26.9 2.509 -0.381 7.83 -8.0860 37.451 116.58 -16.08 3.9555 -0.44905 -0.25497 -1.28749 2.23369 -0.00473 -0.00065 2000 275.81806620121030.00000208.752444333.561342 11.5842520.15978459 3.1842914 2.6754907 8.6 5.00.15 RATE 1.7345420 0.000000 0.000000 0.000000 0.0000000 0.0000000 0.0000000 Meas 0.049 0.047 92 1.71 0.048 0 0-3 2 056226.0020121106_818127 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2012 Oct 25, 21:55 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 425-688-9965 mailto: stevepr@acm.org