IOTA/IOTA-ES occultation update for (31762) 1999 JB104 / UCAC4 541-031100 event on 2024 Oct 05, 10:57 UT Visible from Summary ------- On 2024 Oct 05 UT, the 16.1180007708521 km diameter asteroid (31762) 1999 JB104 will occult a 11.5 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.63 mag to 18.14 mag (the magnitude of the asteroid) for at most 1.090 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: 94 * date and approx. time of event: 2024 Oct 05, 10:49 - 2024 Oct 05, 11:04 * geocentric midpoint of event [JD]: 2460588.95634200 * magnitude of target star: 11.51 * magnitude drop [mag]: 6.63 * estimated maximum duration [s]: 1.090 * Moon: 7 % sunlit, 122° distance * Sun: 93° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 16 * 1 sigma uncertainty interval [path widths]: +/- 0.45 * 1 sigma uncertainty interval [seconds]: +/- 3.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.002", 73°) * approx speed of asteroid's shadow [km/s]: 14.8981 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 541-031100 by 31762 1999 JB104 on 2024 Oct 5 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 -164 0 0 - 5 37 59 10 50 0.7 1 72 -79 - 5 42 39 - 5 33 19 - 5 46 52 - 5 29 6 .... -163 0 0 - 5 17 55 10 50 0.8 2 72 -79 - 5 22 36 - 5 13 15 - 5 26 49 - 5 9 2 -0.12 -162 0 0 - 4 57 39 10 50 1.1 3 71 -79 - 5 2 20 - 4 52 58 - 5 6 33 - 4 48 45 -0.10 -161 0 0 - 4 37 10 10 50 1.6 4 71 -79 - 4 41 52 - 4 32 29 - 4 46 5 - 4 28 16 -0.09 -160 0 0 - 4 16 30 10 50 2.2 5 71 -79 - 4 21 12 - 4 11 49 - 4 25 25 - 4 7 35 -0.09 -159 0 0 - 3 55 39 10 50 2.9 6 71 -79 - 4 0 20 - 3 50 57 - 4 4 34 - 3 46 43 -0.09 -158 0 0 - 3 34 36 10 50 3.8 7 71 -79 - 3 39 18 - 3 29 54 - 3 43 32 - 3 25 40 -0.09 -157 0 0 - 3 13 23 10 50 4.9 8 71 -78 - 3 18 5 - 3 8 40 - 3 22 19 - 3 4 26 -0.08 -156 0 0 - 2 52 0 10 50 6.0 9 71 -78 - 2 56 42 - 2 47 17 - 3 0 56 - 2 43 3 -0.08 -155 0 0 - 2 30 27 10 50 7.4 10 71 -77 - 2 35 9 - 2 25 44 - 2 39 24 - 2 21 29 -0.08 -154 0 0 - 2 8 45 10 50 8.9 11 71 -77 - 2 13 28 - 2 4 2 - 2 17 42 - 1 59 47 -0.08 -153 0 0 - 1 46 54 10 50 10.5 12 71 -76 - 1 51 37 - 1 42 11 - 1 55 52 - 1 37 56 -0.08 -152 0 0 - 1 24 55 10 50 12.3 13 71 -75 - 1 29 38 - 1 20 11 - 1 33 53 - 1 15 56 -0.08 -151 0 0 - 1 2 48 10 50 14.2 14 71 -74 - 1 7 31 - 0 58 4 - 1 11 47 - 0 53 49 -0.08 -150 0 0 - 0 40 34 10 50 16.3 16 71 -74 - 0 45 18 - 0 35 50 - 0 49 33 - 0 31 35 -0.08 -149 0 0 - 0 18 13 10 50 18.5 17 71 -73 - 0 22 57 - 0 13 29 - 0 27 12 - 0 9 13 -0.08 -148 0 0 0 4 14 10 50 20.9 18 71 -72 - 0 0 30 0 8 58 - 0 4 45 0 13 14 -0.08 -147 0 0 0 26 47 10 50 23.4 19 71 -71 0 22 3 0 31 31 0 17 47 0 35 47 -0.08 -146 0 0 0 49 25 10 50 26.1 20 71 -70 0 44 41 0 54 9 0 40 25 0 58 25 -0.08 -145 0 0 1 12 8 10 50 28.9 21 71 -69 1 7 23 1 16 52 1 3 7 1 21 8 -0.08 -144 0 0 1 34 55 10 50 31.8 22 71 -68 1 30 10 1 39 39 1 25 54 1 43 55 -0.08 -143 0 0 1 57 45 10 50 34.9 23 71 -67 1 53 0 2 2 30 1 48 44 2 6 46 -0.08 -142 0 0 2 20 38 10 50 38.2 24 71 -66 2 15 54 2 25 23 2 11 37 2 29 39 -0.08 -141 0 0 2 43 34 10 50 41.5 25 71 -65 2 38 49 2 48 19 2 34 33 2 52 35 -0.08 -140 0 0 3 6 32 10 50 45.1 26 71 -64 3 1 47 3 11 17 2 57 31 3 15 33 -0.08 -139 0 0 3 29 31 10 50 48.7 27 71 -63 3 24 46 3 34 16 3 20 30 3 38 33 -0.08 -138 0 0 3 52 31 10 50 52.5 28 71 -62 3 47 46 3 57 16 3 43 30 4 1 33 -0.08 -137 0 0 4 15 31 10 50 56.5 30 71 -61 4 10 47 4 20 16 4 6 30 4 24 33 -0.08 -136 0 0 4 38 31 10 51 0.5 31 72 -60 4 33 46 4 43 16 4 29 30 4 47 33 -0.08 -135 0 0 5 1 30 10 51 4.7 32 72 -59 4 56 45 5 6 15 4 52 29 5 10 32 -0.08 -134 0 0 5 24 28 10 51 9.0 33 72 -58 5 19 43 5 29 13 5 15 27 5 33 29 -0.08 -133 0 0 5 47 23 10 51 13.5 34 72 -57 5 42 38 5 52 8 5 38 22 5 56 24 -0.08 -132 0 0 6 10 16 10 51 18.1 35 72 -56 6 5 31 6 15 1 6 1 15 6 19 17 -0.08 -131 0 0 6 33 5 10 51 22.8 36 72 -55 6 28 21 6 37 50 6 24 5 6 42 6 -0.08 -130 0 0 6 55 51 10 51 27.6 37 72 -54 6 51 7 7 0 36 6 46 51 7 4 52 -0.07 -129 0 0 7 18 33 10 51 32.6 38 73 -53 7 13 48 7 23 17 7 9 32 7 27 33 -0.07 -128 0 0 7 41 9 10 51 37.6 39 73 -52 7 36 25 7 45 54 7 32 9 7 50 10 -0.07 -127 0 0 8 3 41 10 51 42.8 40 73 -51 7 58 56 8 8 25 7 54 41 8 12 41 -0.07 -126 0 0 8 26 6 10 51 48.1 41 73 -50 8 21 22 8 30 50 8 17 6 8 35 6 -0.07 -125 0 0 8 48 25 10 51 53.5 42 73 -49 8 43 41 8 53 9 8 39 25 8 57 24 -0.07 -124 0 0 9 10 36 10 51 59.0 44 74 -48 9 5 52 9 15 20 9 1 37 9 19 36 -0.07 -123 0 0 9 32 40 10 52 4.6 45 74 -47 9 27 57 9 37 24 9 23 41 9 41 39 -0.07 -122 0 0 9 54 36 10 52 10.3 46 74 -46 9 49 53 9 59 20 9 45 38 10 3 35 -0.07 -121 0 0 10 16 24 10 52 16.0 47 74 -45 10 11 40 10 21 7 10 7 26 10 25 22 -0.07 -120 0 0 10 38 2 10 52 21.9 48 75 -44 10 33 19 10 42 45 10 29 4 10 47 0 -0.07 -119 0 0 10 59 31 10 52 27.9 49 75 -43 10 54 48 11 4 13 10 50 33 11 8 28 -0.07 -118 0 0 11 20 49 10 52 34.0 50 75 -42 11 16 7 11 25 32 11 11 52 11 29 46 -0.07 -117 0 0 11 41 57 10 52 40.1 51 75 -41 11 37 15 11 46 39 11 33 1 11 50 54 -0.07 -116 0 0 12 2 54 10 52 46.4 52 76 -40 11 58 12 12 7 36 11 53 58 12 11 50 -0.07 -115 0 0 12 23 39 10 52 52.7 53 76 -39 12 18 57 12 28 21 12 14 44 12 32 35 -0.07 -114 0 0 12 44 13 10 52 59.1 54 76 -38 12 39 31 12 48 54 12 35 18 12 53 8 -0.07 -113 0 0 13 4 34 10 53 5.5 55 77 -37 12 59 52 13 9 15 12 55 39 13 13 28 -0.07 -112 0 0 13 24 42 10 53 12.1 56 77 -36 13 20 1 13 29 23 13 15 48 13 33 36 -0.07 -111 0 0 13 44 37 10 53 18.7 57 78 -35 13 39 56 13 49 18 13 35 43 13 53 30 -0.07 -110 0 0 14 4 18 10 53 25.3 58 78 -34 13 59 38 14 8 59 13 55 25 14 13 11 -0.07 -109 0 0 14 23 45 10 53 32.0 59 78 -33 14 19 5 14 28 25 14 14 53 14 32 38 -0.07 -108 0 0 14 42 58 10 53 38.8 60 79 -32 14 38 18 14 47 38 14 34 7 14 51 50 -0.07 -107 0 0 15 1 56 10 53 45.6 62 79 -31 14 57 17 15 6 36 14 53 5 15 10 47 -0.07 -106 0 0 15 20 39 10 53 52.5 63 80 -30 15 16 0 15 25 18 15 11 49 15 29 30 -0.07 -105 0 0 15 39 7 10 53 59.4 64 80 -29 15 34 28 15 43 45 15 30 17 15 47 56 -0.07 -104 0 0 15 57 18 10 54 6.4 65 81 -28 15 52 40 16 1 57 15 48 29 16 6 7 -0.07 -103 0 0 16 15 14 10 54 13.4 66 82 -27 16 10 36 16 19 52 16 6 25 16 24 2 -0.07 -102 0 0 16 32 53 10 54 20.5 67 82 -26 16 28 15 16 37 31 16 24 5 16 41 41 -0.07 -101 0 0 16 50 15 10 54 27.6 68 83 -25 16 45 38 16 54 53 16 41 28 16 59 2 -0.07 -100 0 0 17 7 20 10 54 34.7 69 84 -24 17 2 43 17 11 58 16 58 34 17 16 7 -0.07 - 99 0 0 17 24 8 10 54 41.9 70 84 -23 17 19 32 17 28 45 17 15 23 17 32 54 -0.07 - 98 0 0 17 40 39 10 54 49.1 71 85 -22 17 36 2 17 45 15 17 31 54 17 49 24 -0.07 - 97 0 0 17 56 52 10 54 56.3 72 86 -21 17 52 16 18 1 28 17 48 7 18 5 36 -0.07 - 96 0 0 18 12 46 10 55 3.5 73 87 -20 18 8 11 18 17 22 18 4 2 18 21 30 -0.07 - 95 0 0 18 28 23 10 55 10.8 74 88 -19 18 23 47 18 32 58 18 19 40 18 37 6 -0.07 - 94 0 0 18 43 40 10 55 18.0 75 89 -18 18 39 5 18 48 15 18 34 58 18 52 23 -0.07 - 93 0 0 18 58 40 10 55 25.3 76 90 -17 18 54 5 19 3 14 18 49 58 19 7 21 -0.07 - 92 0 0 19 13 20 10 55 32.6 77 92 -16 19 8 46 19 17 54 19 4 39 19 22 1 -0.07 - 91 0 0 19 27 41 10 55 39.9 77 93 -15 19 23 7 19 32 15 19 19 1 19 36 22 -0.07 - 90 0 0 19 41 43 10 55 47.2 78 95 -14 19 37 10 19 46 17 19 33 3 19 50 23 -0.07 - 89 0 0 19 55 26 10 55 54.6 79 97 -13 19 50 52 19 59 59 19 46 47 20 4 5 -0.07 - 88 0 0 20 8 49 10 56 1.9 80 99 -12 20 4 16 20 13 22 20 0 10 20 17 27 -0.07 - 87 0 0 20 21 52 10 56 9.2 81 102 -11 20 17 19 20 26 24 20 13 14 20 30 30 -0.07 - 86 0 0 20 34 35 10 56 16.5 82 106 -10 20 30 3 20 39 8 20 25 58 20 43 13 -0.07 - 85 0 0 20 46 59 10 56 23.9 83 110 -9 20 42 27 20 51 31 20 38 22 20 55 35 -0.07 - 84 0 0 20 59 2 10 56 31.2 84 115 -8 20 54 30 21 3 34 20 50 26 21 7 38 -0.07 - 83 0 0 21 10 45 10 56 38.5 84 122 -7 21 6 14 21 15 16 21 2 10 21 19 20 -0.07 - 82 0 0 21 22 8 10 56 45.8 85 130 -6 21 17 37 21 26 39 21 13 33 21 30 43 -0.07 - 81 0 0 21 33 10 10 56 53.1 85 141 -5 21 28 39 21 37 41 21 24 36 21 41 44 -0.07 - 80 0 0 21 43 52 10 57 0.4 86 154 -4 21 39 21 21 48 22 21 35 18 21 52 25 -0.07 - 79 0 0 21 54 13 10 57 7.6 86 170 -4 21 49 43 21 58 43 21 45 40 22 2 46 -0.07 - 78 0 0 22 4 13 10 57 14.9 86 185 -3 21 59 44 22 8 43 21 55 41 22 12 46 -0.07 - 77 0 0 22 13 53 10 57 22.1 85 198 -2 22 9 24 22 18 23 22 5 21 22 22 25 -0.07 - 76 0 0 22 23 12 10 57 29.3 85 209 -1 22 18 43 22 27 41 22 14 40 22 31 43 -0.07 - 75 0 0 22 32 10 10 57 36.5 84 218 0 22 27 41 22 36 39 22 23 39 22 40 41 -0.07 - 74 0 0 22 40 47 10 57 43.7 84 224 1 22 36 18 22 45 15 22 32 16 22 49 17 -0.07 - 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47 0 0 24 19 34 11 0 43.6 59 265 26 24 15 8 24 24 0 24 11 9 24 27 59 -0.06 - 46 0 0 24 18 15 11 0 49.6 58 266 27 24 13 49 24 22 41 24 9 50 24 26 40 -0.06 - 45 0 0 24 16 35 11 0 55.6 58 266 27 24 12 9 24 21 1 24 8 10 24 25 0 -0.07 - 44 0 0 24 14 34 11 1 1.5 57 267 28 24 10 8 24 18 59 24 6 9 24 22 59 -0.07 - 43 0 0 24 12 11 11 1 7.3 56 267 29 24 7 45 24 16 37 24 3 46 24 20 36 -0.07 - 42 0 0 24 9 27 11 1 13.0 55 268 30 24 5 1 24 13 53 24 1 2 24 17 53 -0.07 - 41 0 0 24 6 23 11 1 18.7 54 268 31 24 1 57 24 10 49 23 57 57 24 14 48 -0.07 - 40 0 0 24 2 57 11 1 24.4 53 269 32 23 58 30 24 7 23 23 54 31 24 11 22 -0.07 - 39 0 0 23 59 10 11 1 29.9 52 269 33 23 54 43 24 3 36 23 50 44 24 7 36 -0.07 - 38 0 0 23 55 2 11 1 35.4 51 270 34 23 50 35 23 59 28 23 46 35 24 3 28 -0.07 - 37 0 0 23 50 33 11 1 40.9 50 270 35 23 46 6 23 54 59 23 42 6 23 58 59 -0.07 - 36 0 0 23 45 43 11 1 46.2 49 271 35 23 41 16 23 50 9 23 37 16 23 54 9 -0.07 - 35 0 0 23 40 32 11 1 51.5 48 271 36 23 36 5 23 44 59 23 32 5 23 48 59 -0.07 - 34 0 0 23 35 0 11 1 56.7 47 272 37 23 30 33 23 39 27 23 26 32 23 43 27 -0.07 - 33 0 0 23 29 7 11 2 1.9 46 272 38 23 24 40 23 33 34 23 20 40 23 37 35 -0.07 - 32 0 0 23 22 54 11 2 6.9 45 273 39 23 18 26 23 27 21 23 14 26 23 31 22 -0.07 - 31 0 0 23 16 20 11 2 11.9 44 273 40 23 11 52 23 20 47 23 7 51 23 24 48 -0.07 - 30 0 0 23 9 25 11 2 16.9 44 274 41 23 4 57 23 13 53 23 0 56 23 17 54 -0.07 - 29 0 0 23 2 9 11 2 21.7 43 274 42 22 57 41 23 6 37 22 53 40 23 10 39 -0.07 - 28 0 0 22 54 33 11 2 26.5 42 275 42 22 50 5 22 59 2 22 46 4 23 3 3 -0.07 - 27 0 0 22 46 37 11 2 31.2 41 275 43 22 42 8 22 51 5 22 38 7 22 55 7 -0.07 - 26 0 0 22 38 20 11 2 35.7 40 275 44 22 33 51 22 42 49 22 29 49 22 46 51 -0.07 - 25 0 0 22 29 43 11 2 40.3 39 276 45 22 25 14 22 34 12 22 21 12 22 38 14 -0.07 - 24 0 0 22 20 45 11 2 44.7 38 276 46 22 16 16 22 25 14 22 12 14 22 29 17 -0.07 - 23 0 0 22 11 28 11 2 49.0 37 277 47 22 6 58 22 15 57 22 2 55 22 20 0 -0.07 - 22 0 0 22 1 50 11 2 53.3 36 277 48 21 57 20 22 6 20 21 53 17 22 10 22 -0.07 - 21 0 0 21 51 52 11 2 57.5 35 278 49 21 47 22 21 56 22 21 43 19 22 0 25 -0.07 - 20 0 0 21 41 34 11 3 1.5 34 278 49 21 37 4 21 46 5 21 33 1 21 50 8 -0.07 - 19 0 0 21 30 57 11 3 5.5 33 278 50 21 26 26 21 35 27 21 22 23 21 39 31 -0.07 - 18 0 0 21 20 0 11 3 9.4 32 279 51 21 15 29 21 24 31 21 11 25 21 28 34 -0.07 - 17 0 0 21 8 43 11 3 13.2 31 279 52 21 4 12 21 13 14 21 0 8 21 17 18 -0.07 - 16 0 0 20 57 7 11 3 16.9 30 279 53 20 52 35 21 1 38 20 48 31 21 5 43 -0.07 - 15 0 0 20 45 11 11 3 20.5 29 280 54 20 40 40 20 49 43 20 36 35 20 53 48 -0.07 - 14 0 0 20 32 57 11 3 24.0 28 280 54 20 28 25 20 37 29 20 24 20 20 41 34 -0.07 - 13 0 0 20 20 23 11 3 27.4 27 281 55 20 15 51 20 24 56 20 11 45 20 29 1 -0.07 - 12 0 0 20 7 31 11 3 30.7 26 281 56 20 2 58 20 12 3 19 58 52 20 16 9 -0.07 - 11 0 0 19 54 19 11 3 33.8 25 281 57 19 49 46 19 58 52 19 45 40 20 2 58 -0.07 - 10 0 0 19 40 49 11 3 36.9 24 282 58 19 36 16 19 45 23 19 32 10 19 49 29 -0.07 - 9 0 0 19 27 1 11 3 39.9 23 282 59 19 22 27 19 31 35 19 18 21 19 35 41 -0.08 - 8 0 0 19 12 55 11 3 42.8 22 282 59 19 8 21 19 17 29 19 4 14 19 21 35 -0.08 - 7 0 0 18 58 30 11 3 45.5 21 283 60 18 53 56 19 3 5 18 49 49 19 7 12 -0.08 - 6 0 0 18 43 48 11 3 48.2 20 283 61 18 39 13 18 48 23 18 35 6 18 52 30 -0.08 - 5 0 0 18 28 48 11 3 50.7 19 283 62 18 24 13 18 33 23 18 20 5 18 37 31 -0.08 - 4 0 0 18 13 31 11 3 53.1 18 284 62 18 8 55 18 18 6 18 4 48 18 22 14 -0.08 - 3 0 0 17 57 56 11 3 55.4 17 284 63 17 53 20 18 2 32 17 49 12 18 6 40 -0.08 - 2 0 0 17 42 5 11 3 57.5 16 284 64 17 37 29 17 46 41 17 33 20 17 50 49 -0.08 - 1 0 0 17 25 56 11 3 59.6 15 285 65 17 21 20 17 30 33 17 17 11 17 34 42 -0.08 0 0 0 17 9 32 11 4 1.5 14 285 65 17 4 55 17 14 8 17 0 46 17 18 17 -0.08 1 0 0 16 52 51 11 4 3.3 13 285 66 16 48 14 16 57 28 16 44 5 17 1 37 -0.08 2 0 0 16 35 54 11 4 5.0 12 286 67 16 31 17 16 40 31 16 27 7 16 44 41 -0.08 3 0 0 16 18 42 11 4 6.6 11 286 67 16 14 4 16 23 19 16 9 54 16 27 29 -0.08 4 0 0 16 1 14 11 4 8.0 10 286 68 15 56 36 16 5 52 15 52 26 16 10 2 -0.09 5 0 0 15 43 31 11 4 9.3 9 286 68 15 38 53 15 48 9 15 34 42 15 52 19 -0.09 6 0 0 15 25 33 11 4 10.5 8 287 69 15 20 54 15 30 12 15 16 44 15 34 22 -0.09 7 0 0 15 7 21 11 4 11.5 7 287 70 15 2 42 15 12 0 14 58 31 15 16 11 -0.09 8 0 0 14 48 55 11 4 12.4 6 287 70 14 44 15 14 53 34 14 40 4 14 57 45 -0.10 9 0 0 14 30 14 11 4 13.2 5 287 70 14 25 35 14 34 54 14 21 24 14 39 5 -0.10 10 0 0 14 11 21 11 4 13.8 4 288 71 14 6 41 14 16 1 14 2 29 14 20 12 -0.11 11 0 0 13 52 14 11 4 14.4 3 288 71 13 47 34 13 56 54 13 43 22 14 1 6 -0.12 12 0 0 13 32 55 11 4 14.7 2 288 71 13 28 15 13 37 35 13 24 2 13 41 47 -0.14 13 0 0 13 13 23 11 4 15.0 1 288 72 13 8 42 13 18 4 13 4 30 13 22 16 -0.20 14 0 0 12 53 39 11 4 15.1 0 289 72 12 48 58 12 58 20 12 44 46 13 2 33 -0.93 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: UCAC4 541-031100 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 06 40 56.2644 DE: +18 11 05.888 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 06 40 56.2645 DE: +18 11 05.888 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.5 * B mag [mag]: 12.3 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (31762) 1999 JB104 asteroid class: approx. diameter [km]: 16 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.61970 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#46 date of fit: 2023 Apr 27 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): 0.024", 0.002", 72.994° remarks: * orbital elements for (31762)1999 JB104 : Mean anomaly = 350.2174621700 deg Arg. of pericenter = 357.1229244563 deg Long. of node = 92.9137205725 deg Inclination = 18.3576998507 deg Eccentricity = 0.0838786582 Semimajor axis = 3.1016367495 AU Perihelion dist = 2.8414756209 AU Mag: H = 12.76, G = 0.15 Epoch of elements : MJD 60588.45634029 TDT (2024 Oct 05.4563) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#462023Apr27,1.09,2024,10,5,10.952208,-0.010631,0.063043,8.287002,1.426483,-0.005767,0.000450,0.000000,0.000000 -78.2989,18.1632,12.79,-5.02,False UCAC4 541-031100,6.68229566,18.1849689,12.29,11.51,11.09,0.1,0,,6.70639604,18.1631802,6.63,6.60,0,0,0 31762,1999 JB104,18.14,16.308,2.6197,0,0,1.952,4.79,,1.4,0 0,350.1351,2024,10,5,357.1229,92.9137,18.3577,0.08388,3.10164,2.84148,12.76,5.0,0.15 1.450,0.0243,0.0023,73,0.0038,Known errors,0.96,0,-1,-1 20241005_031100,60140.61 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:40 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org