IOTA/IOTA-ES occultation update for (1209) Pumma / UCAC4 321-222768 event on 2024 Oct 29, 12:46 UT Visible from Summary ------- On 2024 Oct 29 UT, the 26.357 km diameter asteroid (1209) Pumma will occult a 11.8 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 4.58 mag to 16.32 mag (the magnitude of the asteroid) for at most 1.130 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 97 * date and approx. time of event: 2024 Oct 29, 12:42 - 2024 Oct 29, 12:51 * geocentric midpoint of event [JD]: 2460613.03247659 * magnitude of target star: 11.76 * magnitude drop [mag]: 4.58 * estimated maximum duration [s]: 1.130 * Moon: 8 % sunlit, 113° distance * Sun: 80° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 26 * 1 sigma uncertainty interval [path widths]: +/- 0.39 * 1 sigma uncertainty interval [seconds]: +/- 1.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.004", 86°) * approx speed of asteroid's shadow [km/s]: 23.4163 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 321-222768 by 1209 Pumma on 2024 Oct 29 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude - 23 0 0 - 8 45 43 12 42 13.8 1 116 80 - 8 53 41 - 8 37 46 - 8 59 53 - 8 31 34 .... - 22 0 0 - 9 14 39 12 42 13.9 2 116 81 - 9 22 36 - 9 6 42 - 9 28 47 - 9 0 31 0.05 - 21 0 0 - 9 43 16 12 42 14.1 3 116 83 - 9 51 12 - 9 35 20 - 9 57 23 - 9 29 10 0.01 - 20 0 0 -10 11 34 12 42 14.4 4 116 84 -10 19 29 -10 3 39 -10 25 39 - 9 57 29 0.00 - 19 0 0 -10 39 32 12 42 14.8 5 115 85 -10 47 26 -10 31 38 -10 53 35 -10 25 29 -0.01 - 18 0 0 -11 7 9 12 42 15.3 6 115 86 -11 15 3 -10 59 16 -11 21 11 -10 53 8 -0.02 - 17 0 0 -11 34 26 12 42 15.9 7 115 87 -11 42 18 -11 26 34 -11 48 26 -11 20 26 -0.02 - 16 0 0 -12 1 21 12 42 16.6 8 115 88 -12 9 12 -11 53 30 -12 15 19 -11 47 23 -0.03 - 15 0 0 -12 27 54 12 42 17.4 9 115 88 -12 35 44 -12 20 4 -12 41 50 -12 13 58 -0.03 - 14 0 0 -12 54 5 12 42 18.3 10 114 88 -13 1 54 -12 46 15 -13 7 59 -12 40 10 -0.03 - 13 0 0 -13 19 52 12 42 19.3 12 114 88 -13 27 41 -13 12 4 -13 33 45 -13 5 59 -0.03 - 12 0 0 -13 45 17 12 42 20.4 13 114 87 -13 53 4 -13 37 29 -13 59 8 -13 31 25 -0.04 - 11 0 0 -14 10 17 12 42 21.5 14 114 86 -14 18 3 -14 2 31 -14 24 6 -13 56 28 -0.04 - 10 0 0 -14 34 53 12 42 22.7 15 113 85 -14 42 38 -14 27 8 -14 48 41 -14 21 6 -0.04 - 9 0 0 -14 59 5 12 42 24.1 16 113 84 -15 6 49 -14 51 21 -15 12 50 -14 45 19 -0.04 - 8 0 0 -15 22 52 12 42 25.5 17 113 83 -15 30 35 -15 15 9 -15 36 35 -15 9 8 -0.04 - 7 0 0 -15 46 13 12 42 26.9 18 113 82 -15 53 55 -15 38 31 -15 59 55 -15 32 32 -0.04 - 6 0 0 -16 9 10 12 42 28.5 19 112 81 -16 16 50 -16 1 29 -16 22 49 -15 55 30 -0.04 - 5 0 0 -16 31 40 12 42 30.1 20 112 80 -16 39 20 -16 24 0 -16 45 18 -16 18 2 -0.04 - 4 0 0 -16 53 44 12 42 31.9 21 112 79 -17 1 23 -16 46 5 -17 7 20 -16 40 8 -0.04 - 3 0 0 -17 15 22 12 42 33.7 22 112 78 -17 23 0 -17 7 44 -17 28 56 -17 1 48 -0.04 - 2 0 0 -17 36 33 12 42 35.5 23 111 77 -17 44 10 -17 28 56 -17 50 5 -17 23 1 -0.04 - 1 0 0 -17 57 18 12 42 37.5 24 111 76 -18 4 53 -17 49 42 -18 10 48 -17 43 47 -0.04 0 0 0 -18 17 35 12 42 39.5 25 111 75 -18 25 10 -18 10 1 -18 31 4 -18 4 6 -0.04 1 0 0 -18 37 26 12 42 41.6 26 110 74 -18 44 59 -18 29 52 -18 50 52 -18 23 59 -0.04 2 0 0 -18 56 49 12 42 43.7 27 110 73 -19 4 21 -18 49 16 -19 10 14 -18 43 24 -0.05 3 0 0 -19 15 44 12 42 45.9 28 110 72 -19 23 16 -19 8 13 -19 29 8 -19 2 21 -0.05 4 0 0 -19 34 13 12 42 48.2 29 109 71 -19 41 43 -19 26 42 -19 47 34 -19 20 51 -0.05 5 0 0 -19 52 13 12 42 50.6 30 109 70 -19 59 43 -19 44 43 -20 5 33 -19 38 53 -0.05 6 0 0 -20 9 46 12 42 53.0 31 109 69 -20 17 14 -20 2 17 -20 23 3 -19 56 28 -0.05 7 0 0 -20 26 50 12 42 55.4 32 108 68 -20 34 18 -20 19 23 -20 40 6 -20 13 34 -0.05 8 0 0 -20 43 27 12 42 58.0 33 108 67 -20 50 54 -20 36 0 -20 56 42 -20 30 13 -0.05 9 0 0 -20 59 36 12 43 0.5 34 108 66 -21 7 2 -20 52 10 -21 12 49 -20 46 23 -0.05 10 0 0 -21 15 16 12 43 3.2 35 107 65 -21 22 41 -21 7 51 -21 28 28 -21 2 5 -0.05 11 0 0 -21 30 29 12 43 5.9 36 107 64 -21 37 53 -21 23 5 -21 43 38 -21 17 19 -0.05 12 0 0 -21 45 13 12 43 8.6 37 107 63 -21 52 36 -21 37 50 -21 58 21 -21 32 5 -0.05 13 0 0 -21 59 29 12 43 11.4 38 106 62 -22 6 51 -21 52 7 -22 12 35 -21 46 22 -0.05 14 0 0 -22 13 17 12 43 14.3 39 106 61 -22 20 38 -22 5 55 -22 26 22 -22 0 11 -0.05 15 0 0 -22 26 36 12 43 17.2 40 106 60 -22 33 57 -22 19 15 -22 39 40 -22 13 32 -0.05 16 0 0 -22 39 27 12 43 20.2 41 105 59 -22 46 47 -22 32 7 -22 52 29 -22 26 25 -0.05 17 0 0 -22 51 50 12 43 23.2 42 105 58 -22 59 9 -22 44 31 -23 4 50 -22 38 49 -0.05 18 0 0 -23 3 44 12 43 26.2 43 105 57 -23 11 2 -22 56 26 -23 16 43 -22 50 44 -0.05 19 0 0 -23 15 10 12 43 29.3 44 104 56 -23 22 28 -23 7 52 -23 28 8 -23 2 12 -0.05 20 0 0 -23 26 8 12 43 32.5 45 104 56 -23 33 25 -23 18 51 -23 39 5 -23 13 11 -0.05 21 0 0 -23 36 37 12 43 35.7 46 104 55 -23 43 53 -23 29 21 -23 49 33 -23 23 41 -0.05 22 0 0 -23 46 38 12 43 38.9 46 103 54 -23 53 54 -23 39 22 -23 59 33 -23 33 43 -0.05 23 0 0 -23 56 11 12 43 42.2 47 103 53 -24 3 26 -23 48 56 -24 9 4 -23 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-21 53 45 -0.06 73 0 0 -21 52 44 12 47 6.0 84 220 6 -22 0 7 -21 45 21 -22 5 51 -21 39 36 -0.06 74 0 0 -21 38 8 12 47 10.7 84 225 5 -21 45 31 -21 30 44 -21 51 17 -21 24 58 -0.06 75 0 0 -21 23 2 12 47 15.3 83 228 4 -21 30 27 -21 15 38 -21 36 13 -21 9 51 -0.06 76 0 0 -21 7 28 12 47 20.0 82 231 3 -21 14 54 -21 0 3 -21 20 41 -20 54 16 -0.06 77 0 0 -20 51 26 12 47 24.6 81 233 2 -20 58 52 -20 43 59 -21 4 40 -20 38 11 -0.06 78 0 0 -20 34 54 12 47 29.3 80 235 1 -20 42 22 -20 27 26 -20 48 10 -20 21 38 -0.05 79 0 0 -20 17 53 12 47 33.9 79 236 0 -20 25 22 -20 10 25 -20 31 11 -20 4 36 -0.05 80 0 0 -20 0 24 12 47 38.6 78 237 -1 -20 7 54 -19 52 55 -20 13 44 -19 47 5 -0.05 81 0 0 -19 42 26 12 47 43.3 77 238 -2 -19 49 57 -19 34 56 -19 55 48 -19 29 5 -0.05 82 0 0 -19 24 0 12 47 48.0 76 239 -3 -19 31 32 -19 16 28 -19 37 23 -19 10 37 -0.05 83 0 0 -19 5 5 12 47 52.6 75 240 -4 -19 12 38 -18 57 32 -19 18 30 -18 51 40 -0.05 84 0 0 -18 45 42 12 47 57.3 74 240 -5 -18 53 16 -18 38 8 -18 59 9 -18 32 15 -0.05 85 0 0 -18 25 50 12 48 2.0 73 240 -6 -18 33 25 -18 18 15 -18 39 19 -18 12 21 -0.05 86 0 0 -18 5 31 12 48 6.7 72 241 -7 -18 13 6 -17 57 55 -18 19 1 -17 52 0 -0.05 87 0 0 -17 44 43 12 48 11.3 71 241 -8 -17 52 20 -17 37 6 -17 58 16 -17 31 10 -0.05 88 0 0 -17 23 28 12 48 16.0 70 241 -9 -17 31 6 -17 15 49 -17 37 2 -17 9 53 -0.05 89 0 0 -17 1 45 12 48 20.6 69 241 -10 -17 9 24 -16 54 5 -17 15 21 -16 48 8 -0.05 90 0 0 -16 39 34 12 48 25.2 68 241 -11 -16 47 14 -16 31 54 -16 53 13 -16 25 55 -0.05 91 0 0 -16 16 57 12 48 29.9 67 241 -12 -16 24 38 -16 9 15 -16 30 37 -16 3 16 -0.05 92 0 0 -15 53 52 12 48 34.5 66 241 -13 -16 1 35 -15 46 10 -16 7 35 -15 40 9 -0.05 93 0 0 -15 30 21 12 48 39.0 65 241 -14 -15 38 5 -15 22 37 -15 44 6 -15 16 36 -0.05 94 0 0 -15 6 24 12 48 43.6 64 241 -15 -15 14 8 -14 58 39 -15 20 10 -14 52 37 -0.05 95 0 0 -14 42 0 12 48 48.2 63 241 -16 -14 49 46 -14 34 14 -14 55 49 -14 28 11 -0.05 96 0 0 -14 17 11 12 48 52.7 62 241 -17 -14 24 58 -14 9 24 -14 31 1 -14 3 20 -0.05 97 0 0 -13 51 56 12 48 57.2 61 241 -18 -13 59 44 -13 44 8 -14 5 49 -13 38 4 -0.05 98 0 0 -13 26 17 12 49 1.6 60 241 -20 -13 34 6 -13 18 28 -13 40 11 -13 12 22 -0.05 99 0 0 -13 0 13 12 49 6.1 59 241 -21 -13 8 3 -12 52 23 -13 14 9 -12 46 17 -0.05 100 0 0 -12 33 45 12 49 10.4 58 241 -22 -12 41 36 -12 25 54 -12 47 43 -12 19 47 -0.05 101 0 0 -12 6 53 12 49 14.8 57 241 -23 -12 14 45 -11 59 1 -12 20 53 -11 52 53 -0.05 102 0 0 -11 39 38 12 49 19.1 56 241 -24 -11 47 32 -11 31 45 -11 53 40 -11 25 36 -0.05 103 0 0 -11 12 1 12 49 23.4 54 241 -25 -11 19 55 -11 4 6 -11 26 4 -10 57 57 -0.05 104 0 0 -10 44 1 12 49 27.7 53 241 -26 -10 51 56 -10 36 6 -10 58 6 -10 29 56 -0.05 105 0 0 -10 15 40 12 49 31.8 52 241 -27 -10 23 36 -10 7 44 -10 29 47 -10 1 33 -0.05 106 0 0 - 9 46 58 12 49 36.0 51 241 -28 - 9 54 55 - 9 39 1 -10 1 7 - 9 32 49 -0.05 107 0 0 - 9 17 56 12 49 40.1 50 241 -29 - 9 25 54 - 9 9 57 - 9 32 6 - 9 3 45 -0.05 108 0 0 - 8 48 34 12 49 44.1 49 240 -31 - 8 56 33 - 8 40 34 - 9 2 46 - 8 34 21 -0.05 109 0 0 - 8 18 53 12 49 48.1 48 240 -32 - 8 26 53 - 8 10 53 - 8 33 6 - 8 4 39 -0.05 110 0 0 - 7 48 53 12 49 52.0 47 240 -33 - 7 56 54 - 7 40 52 - 8 3 8 - 7 34 38 -0.05 111 0 0 - 7 18 37 12 49 55.9 46 240 -34 - 7 26 38 - 7 10 35 - 7 32 53 - 7 4 20 -0.05 112 0 0 - 6 48 3 12 49 59.7 44 240 -35 - 6 56 5 - 6 40 0 - 7 2 21 - 6 33 45 -0.05 113 0 0 - 6 17 13 12 50 3.4 43 240 -36 - 6 25 16 - 6 9 10 - 6 31 33 - 6 2 54 -0.05 114 0 0 - 5 46 8 12 50 7.1 42 240 -37 - 5 54 12 - 5 38 4 - 6 0 29 - 5 31 48 -0.05 115 0 0 - 5 14 49 12 50 10.7 41 240 -38 - 5 22 54 - 5 6 45 - 5 29 11 - 5 0 27 -0.05 116 0 0 - 4 43 16 12 50 14.2 40 240 -40 - 4 51 22 - 4 35 11 - 4 57 39 - 4 28 53 -0.05 117 0 0 - 4 11 31 12 50 17.6 39 240 -41 - 4 19 37 - 4 3 25 - 4 25 55 - 3 57 7 -0.05 118 0 0 - 3 39 34 12 50 21.0 38 240 -42 - 3 47 40 - 3 31 27 - 3 53 59 - 3 25 8 -0.04 119 0 0 - 3 7 25 12 50 24.3 36 240 -43 - 3 15 32 - 2 59 18 - 3 21 51 - 2 52 59 -0.04 120 0 0 - 2 35 7 12 50 27.5 35 240 -44 - 2 43 15 - 2 27 0 - 2 49 34 - 2 20 40 -0.04 121 0 0 - 2 2 40 12 50 30.6 34 240 -45 - 2 10 48 - 1 54 32 - 2 17 8 - 1 48 12 -0.04 122 0 0 - 1 30 5 12 50 33.6 33 240 -46 - 1 38 13 - 1 21 56 - 1 44 33 - 1 15 36 -0.04 123 0 0 - 0 57 22 12 50 36.5 32 240 -47 - 1 5 31 - 0 49 14 - 1 11 51 - 0 42 53 -0.04 124 0 0 - 0 24 34 12 50 39.4 31 240 -49 - 0 32 43 - 0 16 25 - 0 39 3 - 0 10 4 -0.04 125 0 0 0 8 20 12 50 42.1 30 240 -50 0 0 11 0 16 29 - 0 6 10 0 22 50 -0.04 126 0 0 0 41 18 12 50 44.8 28 240 -51 0 33 9 0 49 28 0 26 48 0 55 49 -0.04 127 0 0 1 14 19 12 50 47.3 27 240 -52 1 6 10 1 22 29 0 59 49 1 28 50 -0.04 128 0 0 1 47 23 12 50 49.8 26 240 -53 1 39 13 1 55 33 1 32 52 2 1 54 -0.04 129 0 0 2 20 28 12 50 52.1 25 240 -54 2 12 18 2 28 38 2 5 57 2 34 59 -0.04 130 0 0 2 53 33 12 50 54.4 24 240 -55 2 45 23 3 1 42 2 39 1 3 8 4 -0.04 131 0 0 3 26 37 12 50 56.5 23 240 -57 3 18 27 3 34 47 3 12 6 3 41 8 -0.04 132 0 0 3 59 39 12 50 58.6 22 240 -58 3 51 29 4 7 49 3 45 8 4 14 10 -0.04 133 0 0 4 32 39 12 51 0.5 20 240 -59 4 24 29 4 40 49 4 18 8 4 47 10 -0.04 134 0 0 5 5 35 12 51 2.4 19 240 -60 4 57 25 5 13 44 4 51 4 5 20 5 -0.04 135 0 0 5 38 26 12 51 4.1 18 241 -61 5 30 17 5 46 35 5 23 56 5 52 56 -0.04 136 0 0 6 11 12 12 51 5.8 17 241 -62 6 3 3 6 19 21 5 56 42 6 25 42 -0.04 137 0 0 6 43 51 12 51 7.3 16 241 -63 6 35 42 6 51 59 6 29 21 6 58 20 -0.04 138 0 0 7 16 22 12 51 8.7 15 241 -64 7 8 14 7 24 31 7 1 54 7 30 51 -0.04 139 0 0 7 48 45 12 51 10.0 14 241 -66 7 40 37 7 56 53 7 34 17 8 3 13 -0.04 140 0 0 8 20 59 12 51 11.2 12 241 -67 8 12 51 8 29 6 8 6 32 8 35 26 -0.04 141 0 0 8 53 2 12 51 12.3 11 241 -68 8 44 55 9 1 9 8 38 36 9 7 29 -0.03 142 0 0 9 24 55 12 51 13.3 10 241 -69 9 16 48 9 33 1 9 10 29 9 39 20 -0.03 143 0 0 9 56 35 12 51 14.2 9 242 -70 9 48 29 10 4 41 9 42 11 10 11 0 -0.03 144 0 0 10 28 3 12 51 15.0 8 242 -71 10 19 57 10 36 8 10 13 39 10 42 26 -0.03 145 0 0 10 59 17 12 51 15.7 7 242 -72 10 51 12 11 7 22 10 44 55 11 13 39 -0.03 146 0 0 11 30 17 12 51 16.3 6 242 -73 11 22 12 11 38 21 11 15 55 11 44 38 -0.02 147 0 0 12 1 1 12 51 16.7 5 242 -74 11 52 58 12 9 5 11 46 41 12 15 22 -0.02 148 0 0 12 31 30 12 51 17.1 4 243 -75 12 23 27 12 39 33 12 17 12 12 45 49 -0.01 149 0 0 13 1 43 12 51 17.4 2 243 -76 12 53 41 13 9 45 12 47 25 13 16 0 0.01 150 0 0 13 31 38 12 51 17.5 1 243 -77 13 23 37 13 39 39 13 17 22 13 45 54 0.05 151 0 0 14 1 15 12 51 17.6 0 243 -78 13 53 15 14 9 16 13 47 1 14 15 30 0.45 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: UCAC4 321-222768 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 19 55 54.6785 DE: -25 51 56.343 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 19 55 54.6782 DE: -25 51 56.344 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.8 * B mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1209) Pumma asteroid class: approx. diameter [km]: 26 approx. diameter ["]: 0.013 distance from Earth [AU]: 2.88880 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#61 date of fit: 2023 Apr 24 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.020", 0.004", 85.844° remarks: * orbital elements for (1209)Pumma : Mean anomaly = 39.2326083761 deg Arg. of pericenter = 176.6741618193 deg Long. of node = 89.7397821051 deg Inclination = 6.9370650069 deg Eccentricity = 0.1268369182 Semimajor axis = 3.1704625572 AU Perihelion dist = 2.7683308571 AU Mag: H = 10.73, G = 0.15 Epoch of elements : MJD 60612.53247609 TDT (2024 Oct 29.5325) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#612023Apr24,1.13,2024,10,29,12.779438,-0.010942,0.053893,12.904199,2.857706,0.005697,0.001044,0.000000,0.000000 69.3192,-25.8014,-15.77,-13.72,False UCAC4 321-222768,19.93185518,-25.8656509,12.17,11.76,11.54,0.0,0,,19.95686737,-25.8014088,4.57,4.35,0,0,0 1209,Pumma,16.32,26.357,2.8888,0,0,2.909,8.70,,1.8,0 0,39.1396,2024,10,29,176.6742,89.7398,6.9371,0.12684,3.17046,2.76833,10.72,5.0,0.15 1.389,0.0200,0.0040,86,0.0049,Known errors,1.02,0,-1,-1 20241029_222768,60140.67 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:00 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org