IOTA/IOTA-ES occultation update for (91) Aegina / UCAC4 326-089552 event on 2023 Apr 16, 12:35 UT Visible from Australia Summary ------- On 2023 Apr 16 UT, the 107.4 km diameter asteroid (91) Aegina will occult a 11.6 mag star in the constellation Ophiuchus for observers along a path across Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.19 mag to 13.66 mag (the magnitude of the asteroid) for at most 35.050 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: 2023 Apr 16, 12:00 - 2023 Apr 16, 13:11 * geocentric midpoint of event [JD]: 2460051.02504200 * magnitude of target star: 11.63 * magnitude drop [mag]: 2.19 * estimated maximum duration [s]: 35.050 * Moon: 17 % sunlit, 81° distance * Sun: 130° distance * rough path description: Australia The occultation path -------------------- * approximate projected width [km]: 107 * 1 sigma uncertainty interval [path widths]: +/- 0.23 * 1 sigma uncertainty interval [seconds]: +/- 11.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.015) * 1 sigma uncertainty ellipse (major, minor, PA): (0.024", 0.015", 97°) * approx speed of asteroid's shadow [km/s]: 3.0638 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 326-089552 by 91 Aegina on 2023 Apr 16 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 117 0 0 .. .. .... .. .. .. .. .. .. .. .. .. -11 58 55 .. .. .. -12 13 53 .... 118 0 0 -11 54 27 13 10 38.5 1 115 -47 -11 22 6 -12 26 45 -11 7 7 -12 41 41 .... 119 0 0 -12 21 56 13 10 37.4 2 115 -48 -11 49 40 -12 54 10 -11 34 45 -13 9 3 -0.01 120 0 0 -12 48 59 13 10 35.7 3 115 -48 -12 16 48 -13 21 7 -12 1 55 -13 35 59 -0.04 121 0 0 -13 15 35 13 10 33.2 4 115 -49 -12 43 30 -13 47 38 -12 28 39 -14 2 27 -0.05 122 0 0 -13 41 44 13 10 30.0 5 114 -50 -13 9 44 -14 13 42 -12 54 55 -14 28 29 -0.06 123 0 0 -14 7 26 13 10 26.2 6 114 -51 -13 35 31 -14 39 19 -13 20 45 -14 54 3 -0.07 124 0 0 -14 32 41 13 10 21.7 7 114 -52 -14 0 51 -15 4 29 -13 46 7 -15 19 10 -0.07 125 0 0 -14 57 28 13 10 16.6 8 114 -53 -14 25 43 -15 29 11 -14 11 2 -15 43 50 -0.07 126 0 0 -15 21 48 13 10 10.8 9 113 -54 -14 50 8 -15 53 26 -14 35 29 -16 8 3 -0.08 127 0 0 -15 45 41 13 10 4.5 10 113 -55 -15 14 6 -16 17 14 -14 59 29 -16 31 49 -0.08 128 0 0 -16 9 6 13 9 57.5 11 113 -56 -15 37 36 -16 40 34 -15 23 2 -16 55 7 -0.08 129 0 0 -16 32 4 13 9 50.0 12 113 -57 -16 0 39 -17 3 28 -15 46 7 -17 17 58 -0.08 130 0 0 -16 54 35 13 9 41.9 13 112 -58 -16 23 15 -17 25 54 -16 8 44 -17 40 22 -0.08 131 0 0 -17 16 38 13 9 33.2 14 112 -59 -16 45 23 -17 47 52 -16 30 55 -18 2 18 -0.08 132 0 0 -17 38 14 13 9 24.0 15 112 -59 -17 7 3 -18 9 23 -16 52 38 -18 23 47 -0.08 133 0 0 -17 59 23 13 9 14.3 16 111 -60 -17 28 17 -18 30 28 -17 13 53 -18 44 49 -0.08 134 0 0 -18 20 5 13 9 4.0 17 111 -61 -17 49 3 -18 51 5 -17 34 41 -19 5 24 -0.08 135 0 0 -18 40 19 13 8 53.3 18 111 -62 -18 9 22 -19 11 15 -17 55 2 -19 25 32 -0.08 136 0 0 -19 0 6 13 8 42.0 19 111 -63 -18 29 13 -19 30 58 -18 14 56 -19 45 13 -0.08 137 0 0 -19 19 27 13 8 30.3 20 110 -63 -18 48 38 -19 50 14 -18 34 23 -20 4 28 -0.07 138 0 0 -19 38 20 13 8 18.1 21 110 -64 -19 7 36 -20 9 3 -18 53 23 -20 23 15 -0.07 139 0 0 -19 56 47 13 8 5.5 22 110 -65 -19 26 7 -20 27 26 -19 11 55 -20 41 36 -0.07 140 0 0 -20 14 47 13 7 52.4 23 109 -66 -19 44 11 -20 45 22 -19 30 2 -20 59 30 -0.07 141 0 0 -20 32 21 13 7 38.9 24 109 -66 -20 1 49 -21 2 52 -19 47 41 -21 16 58 -0.07 142 0 0 -20 49 28 13 7 25.0 25 109 -67 -20 19 0 -21 19 55 -20 4 54 -21 34 0 -0.07 143 0 0 -21 6 9 13 7 10.7 26 108 -68 -20 35 45 -21 36 32 -20 21 40 -21 50 35 -0.07 144 0 0 -21 22 24 13 6 56.0 27 108 -68 -20 52 3 -21 52 43 -20 38 1 -22 6 44 -0.07 145 0 0 -21 38 13 13 6 40.8 28 108 -69 -21 7 55 -22 8 29 -20 53 55 -22 22 28 -0.07 146 0 0 -21 53 35 13 6 25.3 29 107 -70 -21 23 22 -22 23 48 -21 9 23 -22 37 46 -0.07 147 0 0 -22 8 32 13 6 9.5 29 107 -70 -21 38 22 -22 38 41 -21 24 25 -22 52 37 -0.07 148 0 0 -22 23 4 13 5 53.3 30 107 -71 -21 52 57 -22 53 9 -21 39 1 -23 7 4 -0.07 149 0 0 -22 37 9 13 5 36.7 31 106 -71 -22 7 6 -23 7 12 -21 53 12 -23 21 5 -0.06 150 0 0 -22 50 50 13 5 19.8 32 106 -72 -22 20 50 -23 20 49 -22 6 57 -23 34 41 -0.06 151 0 0 -23 4 5 13 5 2.5 33 106 -72 -22 34 8 -23 34 1 -22 20 16 -23 47 52 -0.06 152 0 0 -23 16 55 13 4 44.9 34 105 -73 -22 47 1 -23 46 48 -22 33 11 -24 0 37 -0.06 153 0 0 -23 29 20 13 4 27.0 35 105 -73 -22 59 29 -23 59 11 -22 45 40 -24 12 58 -0.06 154 0 0 -23 41 20 13 4 8.8 36 105 -73 -23 11 32 -24 11 8 -22 57 44 -24 24 54 -0.06 155 0 0 -23 52 56 13 3 50.3 36 104 -74 -23 23 10 -24 22 41 -23 9 24 -24 36 26 -0.06 156 0 0 -24 4 7 13 3 31.4 37 104 -74 -23 34 24 -24 33 49 -23 20 39 -24 47 33 -0.06 157 0 0 -24 14 53 13 3 12.3 38 104 -74 -23 45 13 -24 44 33 -23 31 29 -24 58 16 -0.06 158 0 0 -24 25 16 13 2 52.9 39 103 -75 -23 55 37 -24 54 53 -23 41 55 -25 8 34 -0.06 159 0 0 -24 35 14 13 2 33.3 40 103 -75 -24 5 38 -25 4 48 -23 51 56 -25 18 29 -0.06 160 0 0 -24 44 48 13 2 13.3 41 102 -75 -24 15 14 -25 14 20 -24 1 33 -25 28 0 -0.06 161 0 0 -24 53 57 13 1 53.1 42 102 -75 -24 24 26 -25 23 28 -24 10 47 -25 37 6 -0.05 162 0 0 -25 2 44 13 1 32.6 42 102 -75 -24 33 14 -25 32 12 -24 19 36 -25 45 50 -0.05 163 0 0 -25 11 6 13 1 11.9 43 101 -75 -24 41 39 -25 40 33 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55 28 -27 20 35 -0.04 -172 0 0 -26 37 3 12 51 22.4 64 93 -64 -26 7 56 -27 6 9 -25 54 28 -27 19 36 -0.04 -171 0 0 -26 35 42 12 50 56.4 64 93 -64 -26 6 36 -27 4 49 -25 53 8 -27 18 16 -0.04 -170 0 0 -26 34 0 12 50 30.2 65 93 -63 -26 4 53 -27 3 7 -25 51 25 -27 16 34 -0.04 -169 0 0 -26 31 57 12 50 3.8 66 92 -62 -26 2 49 -27 1 4 -25 49 21 -27 14 32 -0.04 -168 0 0 -26 29 32 12 49 37.3 67 92 -62 -26 0 24 -26 58 39 -25 46 55 -27 12 7 -0.04 -167 0 0 -26 26 46 12 49 10.6 67 92 -61 -25 57 37 -26 55 54 -25 44 8 -27 9 22 -0.04 -166 0 0 -26 23 38 12 48 43.8 68 92 -60 -25 54 28 -26 52 47 -25 40 59 -27 6 15 -0.04 -165 0 0 -26 20 9 12 48 16.8 69 91 -60 -25 50 58 -26 49 18 -25 37 29 -27 2 47 -0.04 -164 0 0 -26 16 18 12 47 49.6 70 91 -59 -25 47 7 -26 45 29 -25 33 37 -26 58 58 -0.04 -163 0 0 -26 12 6 12 47 22.3 71 91 -58 -25 42 55 -26 41 18 -25 29 24 -26 54 47 -0.04 -162 0 0 -26 7 33 12 46 54.8 71 91 -58 -25 38 21 -26 36 46 -25 24 50 -26 50 16 -0.04 -161 0 0 -26 2 39 12 46 27.2 72 91 -57 -25 33 25 -26 31 52 -25 19 54 -26 45 23 -0.04 -160 0 0 -25 57 24 12 45 59.5 73 91 -56 -25 28 9 -26 26 38 -25 14 37 -26 40 9 -0.04 -159 0 0 -25 51 47 12 45 31.6 74 91 -56 -25 22 31 -26 21 3 -25 8 59 -26 34 34 -0.04 -158 0 0 -25 45 49 12 45 3.6 75 91 -55 -25 16 32 -26 15 6 -25 2 59 -26 28 38 -0.04 -157 0 0 -25 39 30 12 44 35.4 75 91 -54 -25 10 11 -26 8 48 -24 56 38 -26 22 21 -0.04 -156 0 0 -25 32 50 12 44 7.1 76 91 -53 -25 3 30 -26 2 9 -24 49 56 -26 15 43 -0.04 -155 0 0 -25 25 48 12 43 38.6 77 91 -53 -24 56 27 -25 55 9 -24 42 52 -26 8 43 -0.04 -154 0 0 -25 18 26 12 43 10.1 78 91 -52 -24 49 3 -25 47 48 -24 35 27 -26 1 23 -0.04 -153 0 0 -25 10 42 12 42 41.4 79 92 -51 -24 41 18 -25 40 6 -24 27 41 -25 53 42 -0.04 -152 0 0 -25 2 37 12 42 12.5 79 92 -50 -24 33 11 -25 32 3 -24 19 34 -25 45 39 -0.04 -151 0 0 -24 54 11 12 41 43.6 80 93 -50 -24 24 43 -25 23 39 -24 11 6 -25 37 16 -0.04 -150 0 0 -24 45 24 12 41 14.5 81 94 -49 -24 15 55 -25 14 53 -24 2 16 -25 28 31 -0.04 -149 0 0 -24 36 16 12 40 45.3 82 95 -48 -24 6 45 -25 5 47 -23 53 5 -25 19 26 -0.04 -148 0 0 -24 26 47 12 40 16.0 82 96 -48 -23 57 13 -24 56 20 -23 43 33 -25 9 59 -0.04 -147 0 0 -24 16 57 12 39 46.5 83 98 -47 -23 47 21 -24 46 31 -23 33 40 -25 0 12 -0.04 -146 0 0 -24 6 45 12 39 17.0 84 100 -46 -23 37 8 -24 36 22 -23 23 26 -24 50 3 -0.04 -145 0 0 -23 56 13 12 38 47.3 85 103 -45 -23 26 33 -24 25 51 -23 12 50 -24 39 34 -0.04 -144 0 0 -23 45 19 12 38 17.6 85 108 -45 -23 15 37 -24 15 0 -23 1 53 -24 28 43 -0.04 -143 0 0 -23 34 4 12 37 47.7 86 114 -44 -23 4 21 -24 3 48 -22 50 36 -24 17 32 -0.04 -142 0 0 -23 22 29 12 37 17.7 86 123 -43 -22 52 43 -23 52 14 -22 38 57 -24 6 0 -0.04 -141 0 0 -23 10 32 12 36 47.7 87 136 -42 -22 40 44 -23 40 20 -22 26 57 -23 54 6 -0.05 -140 0 0 -22 58 14 12 36 17.5 87 155 -41 -22 28 24 -23 28 4 -22 14 35 -23 41 52 -0.05 -139 0 0 -22 45 35 12 35 47.3 87 175 -41 -22 15 42 -23 15 28 -22 1 53 -23 29 16 -0.05 -138 0 0 -22 32 36 12 35 17.0 87 194 -40 -22 2 40 -23 2 30 -21 48 50 -23 16 20 -0.05 -137 0 0 -22 19 15 12 34 46.6 86 207 -39 -21 49 17 -22 49 12 -21 35 25 -23 3 3 -0.05 -136 0 0 -22 5 33 12 34 16.1 86 217 -38 -21 35 33 -22 35 33 -21 21 40 -22 49 25 -0.04 -135 0 0 -21 51 30 12 33 45.5 85 223 -38 -21 21 27 -22 21 33 -21 7 33 -22 35 26 -0.04 -134 0 0 -21 37 7 12 33 14.9 85 228 -37 -21 7 1 -22 7 12 -20 53 6 -22 21 6 -0.04 -133 0 0 -21 22 22 12 32 44.2 84 231 -36 -20 52 14 -21 52 30 -20 38 17 -22 6 25 -0.04 -132 0 0 -21 7 16 12 32 13.5 83 233 -35 -20 37 6 -21 37 27 -20 23 8 -21 51 24 -0.04 -131 0 0 -20 51 50 12 31 42.7 82 235 -34 -20 21 36 -21 22 3 -20 7 37 -21 36 1 -0.04 -130 0 0 -20 36 3 12 31 11.8 82 237 -34 -20 5 46 -21 6 19 -19 51 46 -21 20 18 -0.04 -129 0 0 -20 19 55 12 30 41.0 81 238 -33 -19 49 36 -20 50 13 -19 35 34 -21 4 14 -0.05 -128 0 0 -20 3 26 12 30 10.0 80 239 -32 -19 33 4 -20 33 48 -19 19 1 -20 47 50 -0.05 -127 0 0 -19 46 37 12 29 39.1 79 239 -31 -19 16 12 -20 17 1 -19 2 7 -20 31 4 -0.05 -126 0 0 -19 29 27 12 29 8.1 78 240 -30 -18 58 59 -19 59 54 -18 44 53 -20 13 58 -0.05 -125 0 0 -19 11 56 12 28 37.1 77 240 -29 -18 41 25 -19 42 26 -18 27 18 -19 56 32 -0.05 -124 0 0 -18 54 5 12 28 6.1 77 241 -29 -18 23 31 -19 24 38 -18 9 22 -19 38 45 -0.05 -123 0 0 -18 35 53 12 27 35.1 76 241 -28 -18 5 16 -19 6 29 -17 51 6 -19 20 38 -0.05 -122 0 0 -18 17 20 12 27 4.0 75 241 -27 -17 46 41 -18 48 0 -17 32 29 -19 2 10 -0.05 -121 0 0 -17 58 28 12 26 33.0 74 241 -26 -17 27 45 -18 29 10 -17 13 32 -18 43 22 -0.05 -120 0 0 -17 39 15 12 26 2.0 73 242 -25 -17 8 29 -18 10 0 -16 54 15 -18 24 13 -0.05 -119 0 0 -17 19 42 12 25 31.1 72 242 -24 -16 48 53 -17 50 30 -16 34 37 -18 4 45 -0.05 -118 0 0 -16 59 49 12 25 0.1 71 242 -24 -16 28 57 -17 30 40 -16 14 40 -17 44 56 -0.05 -117 0 0 -16 39 36 12 24 29.2 70 242 -23 -16 8 40 -17 10 30 -15 54 22 -17 24 47 -0.05 -116 0 0 -16 19 2 12 23 58.4 69 242 -22 -15 48 4 -16 50 0 -15 33 44 -17 4 19 -0.06 -115 0 0 -15 58 10 12 23 27.5 69 242 -21 -15 27 8 -16 29 10 -15 12 47 -16 43 30 -0.06 -114 0 0 -15 36 57 12 22 56.8 68 242 -20 -15 5 52 -16 8 1 -14 51 29 -16 22 22 -0.06 -113 0 0 -15 15 25 12 22 26.1 67 242 -19 -14 44 17 -15 46 32 -14 29 53 -16 0 55 -0.06 -112 0 0 -14 53 33 12 21 55.6 66 242 -18 -14 22 22 -15 24 43 -14 7 57 -15 39 8 -0.06 -111 0 0 -14 31 23 12 21 25.1 65 242 -17 -14 0 8 -15 2 36 -13 45 41 -15 17 2 -0.06 -110 0 0 -14 8 53 12 20 54.7 64 242 -17 -13 37 35 -14 40 9 -13 23 6 -14 54 36 -0.06 -109 0 0 -13 46 4 12 20 24.4 63 241 -16 -13 14 43 -14 17 23 -13 0 13 -14 31 52 -0.06 -108 0 0 -13 22 56 12 19 54.2 62 241 -15 -12 51 32 -13 54 19 -12 37 1 -14 8 49 -0.06 -107 0 0 -12 59 30 12 19 24.2 61 241 -14 -12 28 3 -13 30 56 -12 13 30 -13 45 28 -0.06 -106 0 0 -12 35 45 12 18 54.3 60 241 -13 -12 4 15 -13 7 14 -11 49 40 -13 21 48 -0.06 -105 0 0 -12 11 42 12 18 24.6 59 241 -12 -11 40 9 -12 43 15 -11 25 33 -12 57 49 -0.07 -104 0 0 -11 47 21 12 17 55.0 58 241 -11 -11 15 45 -12 18 57 -11 1 7 -12 33 33 -0.07 -103 0 0 -11 22 43 12 17 25.7 57 241 -10 -10 51 3 -11 54 21 -10 36 24 -12 8 59 -0.07 -102 0 0 -10 57 47 12 16 56.5 57 241 -9 -10 26 4 -11 29 28 -10 11 23 -11 44 7 -0.07 -101 0 0 -10 32 33 12 16 27.5 56 241 -8 -10 0 47 -11 4 18 - 9 46 5 -11 18 58 -0.07 -100 0 0 -10 7 3 12 15 58.7 55 241 -8 - 9 35 14 -10 38 51 - 9 20 30 -10 53 32 -0.07 - 99 0 0 - 9 41 16 12 15 30.1 54 241 -7 - 9 9 23 -10 13 6 - 8 54 39 -10 27 50 -0.07 - 98 0 0 - 9 15 12 12 15 1.8 53 241 -6 - 8 43 17 - 9 47 6 - 8 28 31 -10 1 50 -0.07 - 97 0 0 - 8 48 52 12 14 33.7 52 241 -5 - 8 16 54 - 9 20 49 - 8 2 6 - 9 35 35 -0.07 - 96 0 0 - 8 22 16 12 14 5.9 51 240 -4 - 7 50 15 - 8 54 16 - 7 35 26 - 9 9 3 -0.08 - 95 0 0 - 7 55 25 12 13 38.4 50 240 -3 - 7 23 21 - 8 27 28 - 7 8 31 - 8 42 16 -0.08 - 94 0 0 - 7 28 19 12 13 11.2 49 240 -2 - 6 56 12 - 8 0 24 - 6 41 20 - 8 15 14 -0.08 - 93 0 0 - 7 0 58 12 12 44.3 48 240 -1 - 6 28 48 - 7 33 6 - 6 13 55 - 7 47 57 -0.08 - 92 0 0 - 6 33 22 12 12 17.6 47 240 0 - 6 1 9 - 7 5 33 - 5 46 15 - 7 20 26 -0.08 - 91 0 0 - 6 5 32 12 11 51.4 46 240 1 - 5 33 17 - 6 37 46 - 5 18 21 - 6 52 40 -0.08 - 90 0 0 - 5 37 29 12 11 25.4 45 240 2 - 5 5 10 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8 - 0 33 37 -0.09 - 77 0 0 0 44 31 12 6 26.1 31 240 15 1 17 18 0 11 47 1 32 28 - 0 3 21 -0.09 - 76 0 0 1 14 56 12 6 6.5 30 240 16 1 47 44 0 42 9 2 2 55 0 27 1 -0.09 - 75 0 0 1 45 26 12 5 47.4 29 240 17 2 18 16 1 12 38 2 33 27 0 57 29 -0.09 - 74 0 0 2 16 1 12 5 28.9 28 240 18 2 48 52 1 43 12 3 4 5 1 28 2 -0.10 - 73 0 0 2 46 41 12 5 11.0 27 240 19 3 19 33 2 13 51 3 34 46 1 58 40 -0.10 - 72 0 0 3 17 25 12 4 53.7 26 240 20 3 50 18 2 44 33 4 5 32 2 29 22 -0.10 - 71 0 0 3 48 11 12 4 37.0 25 240 21 4 21 6 3 15 19 4 36 20 3 0 8 -0.10 - 70 0 0 4 19 1 12 4 20.9 24 240 22 4 51 56 3 46 7 5 7 10 3 30 56 -0.10 - 69 0 0 4 49 52 12 4 5.4 23 240 23 5 22 48 4 16 58 5 38 2 4 1 46 -0.10 - 68 0 0 5 20 43 12 3 50.5 22 240 24 5 53 40 4 47 49 6 8 55 4 32 37 -0.10 - 67 0 0 5 51 36 12 3 36.3 21 241 25 6 24 33 5 18 41 6 39 47 5 3 28 -0.10 - 66 0 0 6 22 27 12 3 22.8 20 241 26 6 55 24 5 49 32 7 10 39 5 34 19 -0.10 - 65 0 0 6 53 17 12 3 9.9 19 241 27 7 26 15 6 20 22 7 41 30 6 5 10 -0.10 - 64 0 0 7 24 6 12 2 57.7 18 241 28 7 57 3 6 51 11 8 12 18 6 35 58 -0.10 - 63 0 0 7 54 51 12 2 46.2 17 241 29 8 27 48 7 21 56 8 43 3 7 6 44 -0.10 - 62 0 0 8 25 33 12 2 35.4 16 241 30 8 58 30 7 52 38 9 13 45 7 37 26 -0.10 - 61 0 0 8 56 11 12 2 25.3 14 241 31 9 29 7 8 23 16 9 44 21 8 8 4 -0.10 - 60 0 0 9 26 43 12 2 15.9 13 241 32 9 59 38 8 53 49 10 14 53 8 38 38 -0.10 - 59 0 0 9 57 9 12 2 7.2 12 242 33 10 30 4 9 24 17 10 45 18 9 9 5 -0.10 - 58 0 0 10 27 29 12 1 59.2 11 242 34 11 0 22 9 54 37 11 15 36 9 39 26 -0.10 - 57 0 0 10 57 41 12 1 51.9 10 242 34 11 30 33 10 24 50 11 45 46 10 9 40 -0.10 - 56 0 0 11 27 44 12 1 45.4 9 242 35 12 0 35 10 54 55 12 15 48 10 39 45 -0.09 - 55 0 0 11 57 38 12 1 39.5 8 242 36 12 30 28 11 24 51 12 45 40 11 9 42 -0.09 - 54 0 0 12 27 23 12 1 34.5 7 243 37 13 0 11 11 54 37 13 15 22 11 39 28 -0.09 - 53 0 0 12 56 56 12 1 30.1 6 243 38 13 29 43 12 24 12 13 44 53 12 9 5 -0.09 - 52 0 0 13 26 18 12 1 26.5 5 243 39 13 59 3 12 53 36 14 14 12 12 38 29 -0.08 - 51 0 0 13 55 28 12 1 23.6 4 243 40 14 28 10 13 22 48 14 43 18 13 7 42 -0.08 - 50 0 0 14 24 24 12 1 21.5 3 243 41 14 57 4 13 51 47 15 12 11 13 36 42 -0.07 - 49 0 0 14 53 7 12 1 20.1 2 244 42 15 25 44 14 20 32 15 40 50 14 5 28 -0.04 - 48 0 0 15 21 35 12 1 19.4 0 244 43 15 54 10 14 49 2 16 9 14 14 34 0 0.09 Uncertainty in time = +/- 12 secs Prediction of 2023 Mar 1.1 Data for the target star ------------------------ * name: UCAC4 326-089552 * constellation : Ophiuchus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 16 56 45.5337 DE: -24 50 17.582 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 16 56 45.5341 DE: -24 50 17.583 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (91) Aegina asteroid class: approx. diameter [km]: 107 approx. diameter ["]: 0.071 distance from Earth [AU]: 2.08240 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#140 date of fit: 2023 Feb 07 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", 0.015", 96.753° remarks: * orbital elements for (91)Aegina : Mean anomaly = 149.6798235033 deg Arg. of pericenter = 74.3669947697 deg Long. of node = 10.4352990267 deg Inclination = 2.1030545881 deg Eccentricity = 0.1071603331 Semimajor axis = 2.5898021064 AU Perihelion dist = 2.3122780499 AU Mag: H = 8.95, G = 0.15 Epoch of elements : MJD 60050.52479167 TDT (2023 Apr 16.5248) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1402023Feb07,35.05,2023,4,16,12.601008,-0.010811,0.037267,-1.671551,-0.443250,-0.004359,0.000609,0.000001,0.000000 -138.8678,-24.8752,-9.05,10.14,False UCAC4 326-089552,16.94598158,-24.8382173,0.00,11.63,0.00,0.0,0,,16.96976744,-24.8751963,2.19,0.00,0,0,0 91,Aegina,13.66,107.4,2.0824,0,0,-0.519,-1.87,,5.4,0 0,149.5557,2023,4,16,74.3670,10.4353,2.1031,0.10716,2.58980,2.31228,8.95,5.0,0.15 1.231,0.0237,0.0150,97,0.0164,Known errors,-1.00,-1,-1,-1 20230416_089552,60004.05 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Mar 01, 01:17 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org