IOTA/IOTA-ES occultation update for (42) Isis / UCAC4 301-189116 event on 2024 Jul 26, 05:44 UT Visible from Summary ------- On 2024 Jul 26 UT, the 113.015 km diameter asteroid (42) Isis will occult a 11.9 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 0.18 mag to 10.00 mag (the magnitude of the asteroid) for at most 27.610 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: 99 * date and approx. time of event: 2024 Jul 26, 05:20 - 2024 Jul 26, 06:08 * geocentric midpoint of event [JD]: 2460517.73907446 * magnitude of target star: 11.89 * magnitude drop [mag]: 0.18 * estimated maximum duration [s]: 27.610 * Moon: 71 % sunlit, 97° distance * Sun: 147° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 127 * 1 sigma uncertainty interval [path widths]: +/- 0.19 * 1 sigma uncertainty interval [seconds]: +/- 5.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.040, +/- 0.008) * 1 sigma uncertainty ellipse (major, minor, PA): (0.040", 0.003", 101°) * approx speed of asteroid's shadow [km/s]: 4.0926 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 301-189116 by 42 Isis on 2024 Jul 26 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 104 0 0 -49 30 12 6 7 17.0 0 140 20 .. .. .. -50 22 28 .. .. .. -50 42 0 .... 105 0 0 -50 15 52 6 7 16.6 1 139 19 -49 24 30 -51 7 50 -49 5 36 -51 27 14 0.43 106 0 0 -51 0 19 6 7 15.8 2 138 18 -50 9 16 -51 51 58 -49 50 29 -52 11 15 0.45 107 0 0 -51 43 35 6 7 14.4 3 137 18 -50 52 50 -52 34 54 -50 34 11 -52 54 3 0.45 108 0 0 -52 25 39 6 7 12.6 4 137 17 -51 35 14 -53 16 38 -51 16 42 -53 35 40 0.46 109 0 0 -53 6 32 6 7 10.4 5 136 16 -52 16 28 -53 57 11 -51 58 3 -54 16 5 0.46 110 0 0 -53 46 17 6 7 7.8 6 135 15 -52 56 33 -54 36 34 -52 38 15 -54 55 21 0.46 111 0 0 -54 24 53 6 7 4.9 7 134 14 -53 35 30 -55 14 49 -53 17 20 -55 33 28 0.46 112 0 0 -55 2 22 6 7 1.7 7 133 13 -54 13 20 -55 51 57 -53 55 18 -56 10 27 0.46 113 0 0 -55 38 46 6 6 58.2 8 133 13 -54 50 4 -56 27 58 -54 32 10 -56 46 21 0.47 114 0 0 -56 14 4 6 6 54.4 9 132 12 -55 25 45 -57 2 55 -55 7 58 -57 21 9 0.47 115 0 0 -56 48 20 6 6 50.4 10 131 11 -56 0 22 -57 36 49 -55 42 43 -57 54 55 0.47 116 0 0 -57 21 34 6 6 46.1 11 130 10 -56 33 57 -58 9 41 -56 16 26 -58 27 38 0.47 117 0 0 -57 53 47 6 6 41.7 11 129 10 -57 6 32 -58 41 32 -56 49 9 -58 59 21 0.47 118 0 0 -58 25 2 6 6 37.0 12 128 9 -57 38 8 -59 12 24 -57 20 53 -59 30 5 0.47 119 0 0 -58 55 18 6 6 32.2 13 128 8 -58 8 46 -59 42 19 -57 51 39 -59 59 51 0.48 120 0 0 -59 24 39 6 6 27.3 13 127 8 -58 38 28 -60 11 17 -58 21 29 -60 28 41 0.48 121 0 0 -59 53 4 6 6 22.2 14 126 7 -59 7 15 -60 39 21 -58 50 23 -60 56 36 0.48 122 0 0 -60 20 37 6 6 17.0 15 125 6 -59 35 9 -61 6 31 -59 18 25 -61 23 39 0.48 123 0 0 -60 47 17 6 6 11.7 15 124 6 -60 2 10 -61 32 50 -59 45 34 -61 49 49 0.48 124 0 0 -61 13 6 6 6 6.3 16 123 5 -60 28 20 -61 58 18 -60 11 52 -62 15 9 0.48 125 0 0 -61 38 7 6 6 0.8 17 122 5 -60 53 41 -62 22 57 -60 37 20 -62 39 40 0.48 126 0 0 -62 2 19 6 5 55.2 17 121 4 -61 18 14 -62 46 48 -61 2 1 -63 3 23 0.48 127 0 0 -62 25 45 6 5 49.6 18 120 3 -61 42 0 -63 9 53 -61 25 54 -63 26 20 0.48 128 0 0 -62 48 25 6 5 43.9 19 120 3 -62 5 1 -63 32 13 -61 49 2 -63 48 32 0.49 129 0 0 -63 10 21 6 5 38.2 19 119 2 -62 27 17 -63 53 49 -62 11 25 -64 10 1 0.49 130 0 0 -63 31 35 6 5 32.4 20 118 2 -62 48 50 -64 14 42 -62 33 5 -64 30 47 0.49 131 0 0 -63 52 7 6 5 26.6 20 117 1 -63 9 41 -64 34 54 -62 54 3 -64 50 51 0.49 132 0 0 -64 11 58 6 5 20.7 21 116 1 -63 29 51 -64 54 26 -63 14 20 -65 10 16 0.49 133 0 0 -64 31 10 6 5 14.9 21 115 0 -63 49 22 -65 13 19 -63 33 58 -65 29 2 0.49 134 0 0 -64 49 44 6 5 9.0 22 114 0 -64 8 14 -65 31 35 -63 52 56 -65 47 10 0.49 135 0 0 -65 7 41 6 5 3.1 22 113 -1 -64 26 28 -65 49 13 -64 11 18 -66 4 42 0.49 136 0 0 -65 25 1 6 4 57.2 23 112 -1 -64 44 7 -66 6 16 -64 29 2 -66 21 38 0.49 137 0 0 -65 41 47 6 4 51.2 23 111 -2 -65 1 10 -66 22 44 -64 46 11 -66 37 59 0.49 138 0 0 -65 57 59 6 4 45.3 24 110 -2 -65 17 38 -66 38 39 -65 2 46 -66 53 47 0.50 139 0 0 -66 13 37 6 4 39.4 24 109 -3 -65 33 33 -66 54 0 -65 18 47 -67 9 3 0.50 140 0 0 -66 28 44 6 4 33.4 25 109 -3 -65 48 55 -67 8 50 -65 34 15 -67 23 46 0.50 141 0 0 -66 43 19 6 4 27.5 25 108 -4 -66 3 46 -67 23 9 -65 49 12 -67 37 59 0.50 142 0 0 -66 57 23 6 4 21.6 25 107 -4 -66 18 6 -67 36 58 -66 3 37 -67 51 42 0.50 143 0 0 -67 10 58 6 4 15.7 26 106 -5 -66 31 56 -67 50 18 -66 17 33 -68 4 56 0.50 144 0 0 -67 24 5 6 4 9.7 26 105 -5 -66 45 17 -68 3 9 -66 30 59 -68 17 42 0.50 145 0 0 -67 36 43 6 4 3.8 27 104 -5 -66 58 9 -68 15 33 -66 43 56 -68 30 0 0.50 146 0 0 -67 48 54 6 3 57.9 27 103 -6 -67 10 34 -68 27 30 -66 56 26 -68 41 52 0.50 147 0 0 -68 0 38 6 3 52.0 28 102 -6 -67 22 31 -68 39 0 -67 8 28 -68 53 17 0.50 148 0 0 -68 11 56 6 3 46.1 28 101 -7 -67 34 3 -68 50 5 -67 20 4 -69 4 17 0.50 149 0 0 -68 22 49 6 3 40.2 28 100 -7 -67 45 8 -69 0 46 -67 31 15 -69 14 53 0.50 150 0 0 -68 33 18 6 3 34.4 29 99 -7 -67 55 49 -69 11 2 -67 42 0 -69 25 4 0.50 151 0 0 -68 43 22 6 3 28.5 29 98 -8 -68 6 5 -69 20 54 -67 52 20 -69 34 52 0.50 152 0 0 -68 53 3 6 3 22.6 29 97 -8 -68 15 58 -69 30 23 -68 2 17 -69 44 17 0.50 153 0 0 -69 2 21 6 3 16.8 30 96 -9 -68 25 27 -69 39 30 -68 11 50 -69 53 19 0.51 154 0 0 -69 11 17 6 3 11.0 30 95 -9 -68 34 33 -69 48 15 -68 21 1 -70 2 0 0.51 155 0 0 -69 19 51 6 3 5.1 31 94 -9 -68 43 18 -69 56 38 -68 29 49 -70 10 19 0.51 156 0 0 -69 28 4 6 2 59.3 31 93 -10 -68 51 40 -70 4 41 -68 38 15 -70 18 18 0.51 157 0 0 -69 35 55 6 2 53.5 31 92 -10 -68 59 41 -70 12 22 -68 46 19 -70 25 56 0.51 158 0 0 -69 43 26 6 2 47.6 32 91 -10 -69 7 22 -70 19 44 -68 54 3 -70 33 14 0.51 159 0 0 -69 50 37 6 2 41.8 32 90 -11 -69 14 42 -70 26 46 -69 1 26 -70 40 13 0.51 160 0 0 -69 57 29 6 2 36.0 32 89 -11 -69 21 41 -70 33 29 -69 8 29 -70 46 53 0.51 161 0 0 -70 4 1 6 2 30.2 33 88 -12 -69 28 22 -70 39 53 -69 15 12 -70 53 14 0.51 162 0 0 -70 10 14 6 2 24.4 33 87 -12 -69 34 43 -70 45 59 -69 21 36 -70 59 16 0.51 163 0 0 -70 16 9 6 2 18.6 33 86 -12 -69 40 45 -70 51 46 -69 27 41 -71 5 0 0.51 164 0 0 -70 21 46 6 2 12.8 34 85 -13 -69 46 28 -70 57 15 -69 33 27 -71 10 27 0.51 165 0 0 -70 27 4 6 2 7.0 34 84 -13 -69 51 53 -71 2 27 -69 38 55 -71 15 36 0.51 166 0 0 -70 32 5 6 2 1.2 34 83 -13 -69 57 1 -71 7 22 -69 44 4 -71 20 29 0.51 167 0 0 -70 36 49 6 1 55.4 34 82 -14 -70 1 50 -71 11 59 -69 48 56 -71 25 4 0.51 168 0 0 -70 41 15 6 1 49.5 35 81 -14 -70 6 22 -71 16 20 -69 53 30 -71 29 23 0.51 169 0 0 -70 45 25 6 1 43.7 35 80 -14 -70 10 37 -71 20 24 -69 57 47 -71 33 25 0.51 170 0 0 -70 49 18 6 1 37.9 35 79 -15 -70 14 35 -71 24 12 -70 1 46 -71 37 11 0.51 171 0 0 -70 52 55 6 1 32.0 36 78 -15 -70 18 16 -71 27 45 -70 5 29 -71 40 42 0.51 172 0 0 -70 56 15 6 1 26.2 36 77 -15 -70 21 41 -71 31 1 -70 8 55 -71 43 56 0.51 173 0 0 -70 59 19 6 1 20.3 36 76 -15 -70 24 49 -71 34 1 -70 12 4 -71 46 55 0.51 174 0 0 -71 2 8 6 1 14.4 37 75 -16 -70 27 41 -71 36 46 -70 14 58 -71 49 39 0.52 175 0 0 -71 4 41 6 1 8.5 37 74 -16 -70 30 16 -71 39 16 -70 17 35 -71 52 7 0.52 176 0 0 -71 6 58 6 1 2.6 37 73 -16 -70 32 36 -71 41 30 -70 19 56 -71 54 20 0.52 177 0 0 -71 8 59 6 0 56.6 37 72 -17 -70 34 41 -71 43 29 -70 22 1 -71 56 19 0.52 178 0 0 -71 10 46 6 0 50.7 38 71 -17 -70 36 29 -71 45 13 -70 23 50 -71 58 2 0.52 179 0 0 -71 12 17 6 0 44.7 38 70 -17 -70 38 2 -71 46 43 -70 25 23 -71 59 31 0.52 -180 0 0 -71 13 33 6 0 38.7 38 69 -18 -70 39 19 -71 47 57 -70 26 41 -72 0 45 0.52 -179 0 0 -71 14 34 6 0 32.7 39 68 -18 -70 40 21 -71 48 57 -70 27 43 -72 1 44 0.52 -178 0 0 -71 15 19 6 0 26.6 39 67 -18 -70 41 7 -71 49 42 -70 28 30 -72 2 29 0.52 -177 0 0 -71 15 50 6 0 20.5 39 66 -19 -70 41 39 -71 50 12 -70 29 1 -72 2 59 0.52 -176 0 0 -71 16 6 6 0 14.4 39 65 -19 -70 41 54 -71 50 28 -70 29 17 -72 3 15 0.52 -175 0 0 -71 16 7 6 0 8.2 40 64 -19 -70 41 55 -71 50 29 -70 29 18 -72 3 16 0.52 -174 0 0 -71 15 53 6 0 2.0 40 63 -20 -70 41 40 -71 50 16 -70 29 3 -72 3 3 0.52 -173 0 0 -71 15 24 5 59 55.8 40 62 -20 -70 41 10 -71 49 48 -70 28 32 -72 2 35 0.52 -172 0 0 -71 14 40 5 59 49.5 41 61 -20 -70 40 25 -71 49 5 -70 27 47 -72 1 53 0.52 -171 0 0 -71 13 41 5 59 43.2 41 60 -21 -70 39 25 -71 48 8 -70 26 45 -72 0 56 0.52 -170 0 0 -71 12 27 5 59 36.8 41 59 -21 -70 38 9 -71 46 56 -70 25 29 -71 59 45 0.52 -169 0 0 -71 10 58 5 59 30.4 41 58 -21 -70 36 37 -71 45 29 -70 23 57 -71 58 19 0.52 -168 0 0 -71 9 14 5 59 24.0 42 57 -21 -70 34 50 -71 43 48 -70 22 9 -71 56 39 0.52 -167 0 0 -71 7 14 5 59 17.5 42 56 -22 -70 32 48 -71 41 51 -70 20 5 -71 54 44 0.52 -166 0 0 -71 5 0 5 59 10.9 42 55 -22 -70 30 30 -71 39 40 -70 17 46 -71 52 34 0.52 -165 0 0 -71 2 29 5 59 4.3 43 53 -22 -70 27 56 -71 37 14 -70 15 11 -71 50 8 0.52 -164 0 0 -70 59 44 5 58 57.6 43 52 -23 -70 25 6 -71 34 32 -70 12 20 -71 47 28 0.52 -163 0 0 -70 56 42 5 58 50.8 43 51 -23 -70 22 0 -71 31 35 -70 9 12 -71 44 33 0.52 -162 0 0 -70 53 25 5 58 44.0 43 50 -23 -70 18 39 -71 28 22 -70 5 49 -71 41 22 0.52 -161 0 0 -70 49 52 5 58 37.1 44 49 -24 -70 15 0 -71 24 54 -70 2 8 -71 37 56 0.52 -160 0 0 -70 46 2 5 58 30.2 44 48 -24 -70 11 6 -71 21 10 -69 58 12 -71 34 14 0.52 -159 0 0 -70 41 57 5 58 23.1 44 47 -24 -70 6 54 -71 17 10 -69 53 58 -71 30 16 0.52 -158 0 0 -70 37 34 5 58 16.0 45 46 -25 -70 2 26 -71 12 54 -69 49 28 -71 26 2 0.53 -157 0 0 -70 32 55 5 58 8.8 45 45 -25 -69 57 40 -71 8 22 -69 44 40 -71 21 32 0.53 -156 0 0 -70 27 59 5 58 1.6 45 44 -25 -69 52 38 -71 3 32 -69 39 35 -71 16 46 0.53 -155 0 0 -70 22 46 5 57 54.2 45 43 -26 -69 47 17 -70 58 26 -69 34 12 -71 11 42 0.53 -154 0 0 -70 17 15 5 57 46.7 46 42 -26 -69 41 39 -70 53 3 -69 28 31 -71 6 22 0.53 -153 0 0 -70 11 27 5 57 39.2 46 41 -26 -69 35 43 -70 47 23 -69 22 32 -71 0 44 0.53 -152 0 0 -70 5 20 5 57 31.5 46 39 -27 -69 29 28 -70 41 24 -69 16 14 -70 54 49 0.53 -151 0 0 -69 58 55 5 57 23.8 47 38 -27 -69 22 55 -70 35 8 -69 9 37 -70 48 36 0.53 -150 0 0 -69 52 11 5 57 15.9 47 37 -27 -69 16 2 -70 28 33 -69 2 42 -70 42 5 0.53 -149 0 0 -69 45 9 5 57 7.9 47 36 -28 -69 8 50 -70 21 40 -68 55 27 -70 35 15 0.53 -148 0 0 -69 37 47 5 56 59.8 47 35 -28 -69 1 19 -70 14 28 -68 47 52 -70 28 6 0.53 -147 0 0 -69 30 5 5 56 51.6 48 34 -29 -68 53 27 -70 6 56 -68 39 57 -70 20 39 0.53 -146 0 0 -69 22 3 5 56 43.3 48 33 -29 -68 45 15 -69 59 5 -68 31 41 -70 12 51 0.53 -145 0 0 -69 13 41 5 56 34.8 48 32 -29 -68 36 43 -69 50 53 -68 23 4 -70 4 43 0.53 -144 0 0 -69 4 58 5 56 26.2 49 30 -30 -68 27 48 -69 42 21 -68 14 6 -69 56 15 0.53 -143 0 0 -68 55 53 5 56 17.5 49 29 -30 -68 18 33 -69 33 28 -68 4 46 -69 47 27 0.53 -142 0 0 -68 46 27 5 56 8.6 49 28 -30 -68 8 55 -69 24 13 -67 55 4 -69 38 16 0.53 -141 0 0 -68 36 38 5 55 59.6 50 27 -31 -67 58 54 -69 14 36 -67 44 59 -69 28 44 0.53 -140 0 0 -68 26 26 5 55 50.4 50 26 -31 -67 48 30 -69 4 37 -67 34 31 -69 18 50 0.53 -139 0 0 -68 15 51 5 55 41.1 50 24 -32 -67 37 43 -68 54 15 -67 23 39 -69 8 33 0.53 -138 0 0 -68 4 53 5 55 31.5 50 23 -32 -67 26 31 -68 43 30 -67 12 23 -68 57 52 0.53 -137 0 0 -67 53 30 5 55 21.8 51 22 -32 -67 14 55 -68 32 20 -67 0 42 -68 46 48 0.53 -136 0 0 -67 41 42 5 55 12.0 51 21 -33 -67 2 53 -68 20 46 -66 48 35 -68 35 19 0.53 -135 0 0 -67 29 28 5 55 1.9 51 20 -33 -66 50 26 -68 8 47 -66 36 3 -68 23 25 0.53 -134 0 0 -67 16 49 5 54 51.7 52 18 -34 -66 37 32 -67 56 22 -66 23 4 -68 11 5 0.53 -133 0 0 -67 3 42 5 54 41.3 52 17 -34 -66 24 12 -67 43 30 -66 9 38 -67 58 19 0.53 -132 0 0 -66 50 8 5 54 30.6 52 16 -34 -66 10 23 -67 30 12 -65 55 44 -67 45 7 0.53 -131 0 0 -66 36 7 5 54 19.8 53 15 -35 -65 56 6 -67 16 25 -65 41 22 -67 31 26 0.53 -130 0 0 -66 21 36 5 54 8.7 53 13 -35 -65 41 20 -67 2 10 -65 26 30 -67 17 17 0.53 -129 0 0 -66 6 36 5 53 57.4 53 12 -36 -65 26 5 -66 47 27 -65 11 9 -67 2 39 0.53 -128 0 0 -65 51 6 5 53 45.8 54 11 -36 -65 10 19 -66 32 13 -64 55 17 -66 47 32 0.53 -127 0 0 -65 35 5 5 53 34.1 54 9 -37 -64 54 2 -66 16 28 -64 38 54 -66 31 53 0.53 -126 0 0 -65 18 33 5 53 22.0 54 8 -37 -64 37 13 -66 0 13 -64 22 0 -66 15 44 0.53 -125 0 0 -65 1 28 5 53 9.8 55 7 -38 -64 19 52 -65 43 25 -64 4 32 -65 59 3 0.53 -124 0 0 -64 43 50 5 52 57.2 55 5 -38 -64 1 57 -65 26 4 -63 46 32 -65 41 48 0.53 -123 0 0 -64 25 38 5 52 44.4 55 4 -39 -63 43 28 -65 8 9 -63 27 57 -65 24 0 0.53 -122 0 0 -64 6 51 5 52 31.3 56 2 -39 -63 24 24 -64 49 40 -63 8 47 -65 5 38 0.53 -121 0 0 -63 47 29 5 52 17.9 56 1 -40 -63 4 45 -64 30 36 -62 49 1 -64 46 40 0.53 -120 0 0 -63 27 30 5 52 4.2 56 359 -40 -62 44 29 -64 10 55 -62 28 39 -64 27 6 0.53 -119 0 0 -63 6 55 5 51 50.2 57 358 -41 -62 23 36 -63 50 38 -62 7 40 -64 6 55 0.53 -118 0 0 -62 45 41 5 51 35.9 57 356 -41 -62 2 5 -63 29 42 -61 46 2 -63 46 7 0.53 -117 0 0 -62 23 49 5 51 21.3 57 355 -42 -61 39 55 -63 8 8 -61 23 46 -63 24 39 0.53 -116 0 0 -62 1 16 5 51 6.3 58 353 -43 -61 17 5 -62 45 54 -61 0 50 -63 2 32 0.53 -115 0 0 -61 38 4 5 50 51.0 58 352 -43 -60 53 35 -62 22 59 -60 37 13 -62 39 45 0.53 -114 0 0 -61 14 10 5 50 35.4 58 350 -44 -60 29 24 -61 59 23 -60 12 55 -62 16 16 0.53 -113 0 0 -60 49 34 5 50 19.4 59 348 -44 -60 4 30 -61 35 6 -59 47 56 -61 52 5 0.53 -112 0 0 -60 24 15 5 50 3.0 59 347 -45 -59 38 54 -61 10 5 -59 22 13 -61 27 10 0.53 -111 0 0 -59 58 12 5 49 46.3 59 345 -46 -59 12 34 -60 44 20 -58 55 47 -61 1 33 0.53 -110 0 0 -59 31 25 5 49 29.1 60 343 -46 -58 45 30 -60 17 50 -58 28 37 -60 35 10 0.53 -109 0 0 -59 3 53 5 49 11.6 60 341 -47 -58 17 41 -59 50 36 -58 0 42 -60 8 2 0.53 -108 0 0 -58 35 35 5 48 53.7 60 339 -47 -57 49 6 -59 22 35 -57 32 1 -59 40 7 0.53 -107 0 0 -58 6 30 5 48 35.4 60 337 -48 -57 19 45 -58 53 47 -57 2 34 -59 11 26 0.53 -106 0 0 -57 36 38 5 48 16.7 61 335 -49 -56 49 37 -58 24 12 -56 32 20 -58 41 57 0.53 -105 0 0 -57 5 58 5 47 57.6 61 333 -49 -56 18 42 -57 53 48 -56 1 19 -58 11 40 0.53 -104 0 0 -56 34 30 5 47 38.0 61 331 -50 -55 46 58 -57 22 36 -55 29 30 -57 40 33 0.53 -103 0 0 -56 2 13 5 47 18.1 61 329 -51 -55 14 26 -56 50 34 -54 56 52 -57 8 37 0.53 -102 0 0 -55 29 7 5 46 57.7 62 327 -52 -54 41 5 -56 17 42 -54 23 26 -56 35 52 0.53 -101 0 0 -54 55 10 5 46 36.9 62 325 -52 -54 6 55 -55 44 1 -53 49 11 -56 2 15 0.53 -100 0 0 -54 20 24 5 46 15.6 62 323 -53 -53 31 56 -55 9 28 -53 14 7 -55 27 48 0.53 - 99 0 0 -53 44 48 5 45 54.0 62 321 -54 -52 56 7 -54 34 5 -52 38 13 -54 52 30 0.53 - 98 0 0 -53 8 21 5 45 31.9 62 318 -55 -52 19 28 -53 57 51 -52 1 30 -54 16 20 0.53 - 97 0 0 -52 31 3 5 45 9.4 62 316 -55 -51 41 59 -53 20 45 -51 23 57 -53 39 19 0.53 - 96 0 0 -51 52 55 5 44 46.4 62 314 -56 -51 3 40 -52 42 48 -50 45 34 -53 1 27 0.52 - 95 0 0 -51 13 57 5 44 23.1 62 311 -57 -50 24 31 -52 4 0 -50 6 22 -52 22 43 0.52 - 94 0 0 -50 34 8 5 43 59.3 62 309 -58 -49 44 33 -51 24 21 -49 26 21 -51 43 7 0.52 - 93 0 0 -49 53 30 5 43 35.1 62 307 -59 -49 3 46 -50 43 51 -48 45 30 -51 2 41 0.52 - 92 0 0 -49 12 1 5 43 10.6 62 304 -59 -48 22 10 -50 2 31 -48 3 51 -50 21 24 0.52 - 91 0 0 -48 29 44 5 42 45.6 62 302 -60 -47 39 45 -49 20 21 -47 21 24 -49 39 16 0.52 - 90 0 0 -47 46 37 5 42 20.3 62 299 -61 -46 56 33 -48 37 21 -46 38 9 -48 56 18 0.52 - 89 0 0 -47 2 43 5 41 54.6 62 297 -62 -46 12 33 -47 53 32 -45 54 8 -48 12 32 0.52 - 88 0 0 -46 18 2 5 41 28.5 62 295 -63 -45 27 48 -47 8 55 -45 9 21 -47 27 57 0.52 - 87 0 0 -45 32 35 5 41 2.1 61 292 -64 -44 42 17 -46 23 32 -44 23 48 -46 42 34 0.51 - 86 0 0 -44 46 22 5 40 35.4 61 290 -64 -43 56 1 -45 37 22 -43 37 32 -45 56 25 0.51 - 85 0 0 -43 59 25 5 40 8.4 61 288 -65 -43 9 2 -44 50 26 -42 50 32 -45 9 31 0.51 - 84 0 0 -43 11 45 5 39 41.2 60 285 -66 -42 21 21 -44 2 47 -42 2 51 -44 21 52 0.51 - 83 0 0 -42 23 23 5 39 13.6 60 283 -67 -41 32 59 -43 14 26 -41 14 29 -43 33 30 0.51 - 82 0 0 -41 34 21 5 38 45.9 59 281 -68 -40 43 58 -42 25 23 -40 25 27 -42 44 27 0.51 - 81 0 0 -40 44 40 5 38 17.9 59 279 -68 -39 54 18 -41 35 40 -39 35 48 -41 54 44 0.50 - 80 0 0 -39 54 22 5 37 49.8 58 277 -69 -39 4 2 -40 45 19 -38 45 33 -41 4 22 0.50 - 79 0 0 -39 3 28 5 37 21.5 58 275 -70 -38 13 12 -39 54 22 -37 54 43 -40 13 23 0.50 - 78 0 0 -38 12 0 5 36 53.1 57 273 -71 -37 21 48 -39 2 50 -37 3 21 -39 21 50 0.50 - 77 0 0 -37 20 0 5 36 24.5 56 271 -71 -36 29 52 -38 10 45 -36 11 27 -38 29 43 0.50 - 76 0 0 -36 27 30 5 35 56.0 56 269 -72 -35 37 27 -37 18 9 -35 19 4 -37 37 5 0.50 - 75 0 0 -35 34 31 5 35 27.3 55 267 -72 -34 44 35 -36 25 4 -34 26 14 -36 43 57 0.49 - 74 0 0 -34 41 7 5 34 58.7 54 265 -73 -33 51 17 -35 31 32 -33 32 58 -35 50 22 0.49 - 73 0 0 -33 47 18 5 34 30.1 53 264 -73 -32 57 36 -34 37 35 -32 39 20 -34 56 22 0.49 - 72 0 0 -32 53 7 5 34 1.6 53 262 -74 -32 3 32 -33 43 16 -31 45 19 -34 1 59 0.49 - 71 0 0 -31 58 35 5 33 33.2 52 261 -74 -31 9 10 -32 48 35 -30 51 0 -33 7 15 0.49 - 70 0 0 -31 3 46 5 33 4.9 51 259 -74 -30 14 30 -31 53 36 -29 56 23 -32 12 13 0.49 - 69 0 0 -30 8 42 5 32 36.8 50 258 -74 -29 19 36 -30 58 22 -29 1 32 -31 16 54 0.48 - 68 0 0 -29 13 25 5 32 8.9 49 257 -74 -28 24 28 -30 2 54 -28 6 29 -30 21 22 0.48 - 67 0 0 -28 17 56 5 31 41.2 48 256 -74 -27 29 10 -29 7 14 -27 11 15 -29 25 38 0.48 - 66 0 0 -27 22 19 5 31 13.8 47 254 -74 -26 33 44 -28 11 24 -26 15 53 -28 29 44 0.48 - 65 0 0 -26 26 35 5 30 46.7 46 253 -74 -25 38 12 -27 15 28 -25 20 25 -27 33 43 0.48 - 64 0 0 -25 30 47 5 30 20.0 45 252 -73 -24 42 37 -26 19 28 -24 24 54 -26 37 38 0.48 - 63 0 0 -24 34 58 5 29 53.6 44 251 -73 -23 47 0 -25 23 25 -23 29 21 -25 41 30 0.47 - 62 0 0 -23 39 9 5 29 27.6 43 250 -72 -22 51 24 -24 27 23 -22 33 49 -24 45 23 0.47 - 61 0 0 -22 43 23 5 29 2.1 42 249 -71 -21 55 50 -23 31 23 -21 38 21 -23 49 17 0.47 - 60 0 0 -21 47 41 5 28 37.0 41 249 -71 -21 0 23 -22 35 28 -20 42 58 -22 53 17 0.47 - 59 0 0 -20 52 8 5 28 12.4 40 248 -70 -20 5 3 -21 39 40 -19 47 43 -21 57 23 0.47 - 58 0 0 -19 56 44 5 27 48.4 38 247 -69 -19 9 53 -20 44 1 -18 52 38 -21 1 39 0.47 - 57 0 0 -19 1 31 5 27 24.9 37 246 -68 -18 14 55 -19 48 34 -17 57 45 -20 6 6 0.47 - 56 0 0 -18 6 33 5 27 1.9 36 246 -67 -17 20 11 -18 53 21 -17 3 7 -19 10 47 0.47 - 55 0 0 -17 11 51 5 26 39.6 35 245 -66 -16 25 44 -17 58 24 -16 8 45 -18 15 44 0.47 - 54 0 0 -16 17 27 5 26 17.9 34 245 -65 -15 31 35 -17 3 44 -15 14 41 -17 20 59 0.46 - 53 0 0 -15 23 24 5 25 56.9 33 244 -64 -14 37 46 -16 9 25 -14 20 58 -16 26 35 0.46 - 52 0 0 -14 29 43 5 25 36.5 31 244 -63 -13 44 21 -15 15 29 -13 27 38 -15 32 32 0.46 - 51 0 0 -13 36 26 5 25 16.8 30 243 -62 -12 51 19 -14 21 56 -12 34 42 -14 38 53 0.46 - 50 0 0 -12 43 36 5 24 57.8 29 243 -61 -11 58 44 -13 28 50 -11 42 13 -13 45 41 0.46 - 49 0 0 -11 51 14 5 24 39.5 28 242 -60 -11 6 37 -12 36 12 -10 50 11 -12 52 57 0.46 - 48 0 0 -10 59 21 5 24 22.0 27 242 -59 -10 15 1 -11 44 3 - 9 58 40 -12 0 43 0.46 - 47 0 0 -10 8 1 5 24 5.2 25 242 -57 - 9 23 56 -10 52 27 - 9 7 41 -11 9 0 0.46 - 46 0 0 - 9 17 14 5 23 49.2 24 241 -56 - 8 33 24 -10 1 24 - 8 17 15 -10 17 50 0.46 - 45 0 0 - 8 27 1 5 23 33.9 23 241 -55 - 7 43 27 - 9 10 55 - 7 27 24 - 9 27 16 0.46 - 44 0 0 - 7 37 26 5 23 19.4 22 241 -54 - 6 54 8 - 8 21 4 - 6 38 10 - 8 37 18 0.46 - 43 0 0 - 6 48 28 5 23 5.7 21 241 -53 - 6 5 26 - 7 31 50 - 5 49 34 - 7 47 59 0.47 - 42 0 0 - 6 0 10 5 22 52.8 19 240 -52 - 5 17 23 - 6 43 16 - 5 1 37 - 6 59 18 0.47 - 41 0 0 - 5 12 33 5 22 40.7 18 240 -50 - 4 30 2 - 5 55 23 - 4 14 21 - 6 11 19 0.47 - 40 0 0 - 4 25 38 5 22 29.4 17 240 -49 - 3 43 22 - 5 8 12 - 3 27 47 - 5 24 2 0.47 - 39 0 0 - 3 39 26 5 22 18.8 16 240 -48 - 2 57 26 - 4 21 44 - 2 41 57 - 4 37 29 0.47 - 38 0 0 - 2 53 59 5 22 9.1 15 240 -47 - 2 12 14 - 3 36 1 - 1 56 51 - 3 51 40 0.47 - 37 0 0 - 2 9 18 5 22 0.2 13 240 -46 - 1 27 48 - 2 51 4 - 1 12 30 - 3 6 37 0.48 - 36 0 0 - 1 25 23 5 21 52.0 12 240 -44 - 0 44 9 - 2 6 53 - 0 28 56 - 2 22 20 0.48 - 35 0 0 - 0 42 15 5 21 44.7 11 240 -43 - 0 1 16 - 1 23 31 0 13 50 - 1 38 52 0.49 - 34 0 0 0 0 4 5 21 38.1 10 240 -42 0 40 48 - 0 40 56 0 55 49 - 0 56 12 0.49 - 33 0 0 0 41 33 5 21 32.3 9 240 -41 1 22 2 0 0 49 1 36 58 - 0 14 21 0.50 - 32 0 0 1 22 13 5 21 27.3 7 240 -40 2 2 28 0 41 43 2 17 18 0 26 40 0.51 - 31 0 0 2 2 2 5 21 23.0 6 240 -39 2 42 2 1 21 47 2 56 47 1 6 49 0.52 - 30 0 0 2 41 0 5 21 19.5 5 240 -37 3 20 46 2 1 0 3 35 25 1 46 7 0.54 - 29 0 0 3 19 6 5 21 16.8 4 240 -36 3 58 37 2 39 20 4 13 12 2 24 33 0.56 - 28 0 0 3 56 20 5 21 14.8 3 240 -35 4 35 37 3 16 48 4 50 7 3 2 6 0.61 - 27 0 0 4 32 41 5 21 13.5 1 240 -34 5 11 44 3 53 23 5 26 9 3 38 46 0.74 - 26 0 0 5 8 8 5 21 12.9 0 240 -33 5 46 58 4 29 5 .. .. .. 4 14 33 1.68 Uncertainty in time = +/- 7 secs Prediction of 2023 Jul 15.2 Data for the target star ------------------------ * name: UCAC4 301-189116 * constellation : Sagittarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 18 06 34.9648 DE: -29 53 20.464 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 18 06 34.9648 DE: -29 53 20.464 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.9 * B mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (42) Isis asteroid class: Barbarian approx. diameter [km]: 113 approx. diameter ["]: 0.152 distance from Earth [AU]: 1.02680 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#120 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): 0.040", 0.003", 100.57° remarks: * orbital elements for (42)Isis : Mean anomaly = 338.5702176566 deg Arg. of pericenter = 237.2518260770 deg Long. of node = 84.1659241342 deg Inclination = 8.5112143453 deg Eccentricity = 0.2220301262 Semimajor axis = 2.4427079733 AU Perihelion dist = 1.9003532136 AU Mag: H = 7.61, G = 0.15 Epoch of elements : MJD 60517.23907546 TDT (2024 Jul 26.2391) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1202023Apr24,27.61,2024,7,26,5.737787,0.253647,-0.383566,-1.926865,-1.274068,0.002618,0.000518,0.000001,0.000000 -118.4397,-29.8874,95.58,19.31,False UCAC4 301-189116,18.10971247,-29.8890176,12.15,11.89,11.75,0.0,0,,18.13626278,-29.8873620,0.18,0.13,0,0,0 42,Isis,10.00,113.015,1.0268,0,0,-1.268,-10.91,,6.0,0 0,338.5085,2024,7,26,237.2518,84.1659,8.5112,0.22203,2.44271,1.90035,7.61,5.0,0.15 1.185,0.0403,0.0026,101,0.0281,Known errors,0.59,0,-1,-1 20240726_189116,60140.22 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 05:16 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org