IOTA/IOTA-ES occultation update for (771) Libera / TYC 112-01772-1 event on 2022 Mar 07, 06:11 UT Visible from SW USA, Mexico Summary ------- On 2022 Mar 07 UT, the 29.3 km diameter asteroid (771) Libera will occult a 11.4 mag star in the constellation Orion for observers along a path across SW USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.00 mag to 14.33 mag (the magnitude of the asteroid) for at most 1.520 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: 2022 Mar 07, 06:06 - 2022 Mar 07, 06:17 * geocentric midpoint of event [JD]: 2459645.75828763 * magnitude of target star: 11.40 * magnitude drop [mag]: 3.00 * estimated maximum duration [s]: 1.520 * Moon: 22 % sunlit, 39° distance * Sun: 92° distance * rough path description: SW USA, Mexico The occultation path -------------------- * approximate projected width [km]: 31 * 1 sigma uncertainty interval [path widths]: +/- 0.45 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.024, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.025", 0.003", 100°) * approx speed of asteroid's shadow [km/s]: 19.2521 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 112-01772-1 by 771 Libera on 2022 Mar 7 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 93 0 0 1 51 7 6 6 37.9 0 84 83 1 42 46 1 59 28 1 35 19 2 6 56 .... 94 0 0 1 58 12 6 6 38.0 1 84 82 1 49 51 2 6 33 1 42 23 2 14 2 -0.22 95 0 0 2 5 34 6 6 38.2 2 84 82 1 57 12 2 13 56 1 49 45 2 21 24 -0.25 96 0 0 2 13 12 6 6 38.5 3 84 81 2 4 50 2 21 34 1 57 22 2 29 3 -0.26 97 0 0 2 21 7 6 6 39.0 5 84 80 2 12 45 2 29 29 2 5 17 2 36 58 -0.27 98 0 0 2 29 18 6 6 39.5 6 84 80 2 20 56 2 37 41 2 13 27 2 45 10 -0.28 99 0 0 2 37 46 6 6 40.1 7 84 79 2 29 23 2 46 9 2 21 54 2 53 39 -0.28 100 0 0 2 46 30 6 6 40.9 8 84 78 2 38 7 2 54 53 2 30 38 3 2 23 -0.28 101 0 0 2 55 30 6 6 41.7 9 84 77 2 47 6 3 3 53 2 39 37 3 11 24 -0.28 102 0 0 3 4 45 6 6 42.7 10 84 76 2 56 22 3 13 10 2 48 52 3 20 40 -0.28 103 0 0 3 14 17 6 6 43.8 11 84 75 3 5 53 3 22 42 2 58 23 3 30 13 -0.29 104 0 0 3 24 4 6 6 44.9 12 84 74 3 15 40 3 32 29 3 8 10 3 40 1 -0.29 105 0 0 3 34 7 6 6 46.2 13 84 74 3 25 43 3 42 33 3 18 12 3 50 4 -0.29 106 0 0 3 44 26 6 6 47.6 14 84 73 3 36 0 3 52 51 3 28 30 4 0 23 -0.29 107 0 0 3 54 59 6 6 49.1 15 84 72 3 46 34 4 3 25 3 39 2 4 10 57 -0.29 108 0 0 4 5 48 6 6 50.7 16 84 71 3 57 22 4 14 14 3 49 50 4 21 47 -0.29 109 0 0 4 16 51 6 6 52.4 17 85 70 4 8 25 4 25 18 4 0 53 4 32 51 -0.29 110 0 0 4 28 9 6 6 54.2 18 85 69 4 19 42 4 36 36 4 12 10 4 44 10 -0.29 111 0 0 4 39 42 6 6 56.2 19 85 68 4 31 15 4 48 9 4 23 42 4 55 43 -0.29 112 0 0 4 51 29 6 6 58.2 20 85 67 4 43 1 4 59 57 4 35 28 5 7 31 -0.29 113 0 0 5 3 30 6 7 0.3 21 85 66 4 55 2 5 11 58 4 47 29 5 19 33 -0.29 114 0 0 5 15 45 6 7 2.6 22 85 65 5 7 17 5 24 14 4 59 43 5 31 48 -0.29 115 0 0 5 28 14 6 7 4.9 23 85 64 5 19 45 5 36 43 5 12 11 5 44 18 -0.29 116 0 0 5 40 56 6 7 7.4 24 85 63 5 32 27 5 49 25 5 24 52 5 57 1 -0.29 117 0 0 5 53 51 6 7 9.9 25 86 62 5 45 22 6 2 21 5 37 47 6 9 57 -0.29 118 0 0 6 7 0 6 7 12.6 26 86 61 5 58 30 6 15 30 5 50 55 6 23 6 -0.29 119 0 0 6 20 21 6 7 15.3 27 86 60 6 11 51 6 28 52 6 4 15 6 36 28 -0.29 120 0 0 6 33 55 6 7 18.2 28 86 59 6 25 24 6 42 26 6 17 48 6 50 2 -0.29 121 0 0 6 47 41 6 7 21.1 29 86 58 6 39 10 6 56 12 6 31 34 7 3 49 -0.29 122 0 0 7 1 39 6 7 24.2 30 87 57 6 53 7 7 10 11 6 45 31 7 17 48 -0.29 123 0 0 7 15 48 6 7 27.3 31 87 56 7 7 17 7 24 21 6 59 40 7 31 58 -0.29 124 0 0 7 30 10 6 7 30.6 32 87 55 7 21 37 7 38 42 7 14 0 7 46 20 -0.29 125 0 0 7 44 42 6 7 33.9 33 87 54 7 36 9 7 53 15 7 28 32 8 0 53 -0.29 126 0 0 7 59 25 6 7 37.3 34 88 53 7 50 52 8 7 59 7 43 15 8 15 37 -0.29 127 0 0 8 14 19 6 7 40.9 35 88 52 8 5 46 8 22 53 7 58 8 8 30 32 -0.29 128 0 0 8 29 23 6 7 44.5 36 88 50 8 20 50 8 37 57 8 13 11 8 45 37 -0.29 129 0 0 8 44 37 6 7 48.2 37 88 49 8 36 3 8 53 12 8 28 25 9 0 51 -0.29 130 0 0 9 0 1 6 7 52.0 38 89 48 8 51 27 9 8 36 8 43 48 9 16 16 -0.29 131 0 0 9 15 34 6 7 55.9 39 89 47 9 6 59 9 24 9 8 59 20 9 31 50 -0.29 132 0 0 9 31 16 6 7 59.9 40 90 46 9 22 41 9 39 52 9 15 1 9 47 32 -0.29 133 0 0 9 47 7 6 8 3.9 41 90 45 9 38 31 9 55 43 9 30 51 10 3 23 -0.29 134 0 0 10 3 6 6 8 8.1 42 90 44 9 54 30 10 11 42 9 46 50 10 19 23 -0.29 135 0 0 10 19 13 6 8 12.3 43 91 43 10 10 37 10 27 49 10 2 56 10 35 31 -0.29 136 0 0 10 35 27 6 8 16.6 44 91 42 10 26 51 10 44 4 10 19 10 10 51 46 -0.29 137 0 0 10 51 49 6 8 21.0 45 92 41 10 43 12 11 0 26 10 35 31 11 8 8 -0.29 138 0 0 11 8 18 6 8 25.4 46 92 40 10 59 41 11 16 55 10 52 0 11 24 37 -0.29 139 0 0 11 24 53 6 8 29.9 47 93 39 11 16 16 11 33 30 11 8 34 11 41 13 -0.29 140 0 0 11 41 34 6 8 34.5 48 93 38 11 32 57 11 50 12 11 25 15 11 57 55 -0.29 141 0 0 11 58 21 6 8 39.2 49 94 37 11 49 44 12 6 59 11 42 2 12 14 42 -0.29 142 0 0 12 15 14 6 8 44.0 50 95 36 12 6 36 12 23 52 11 58 54 12 31 35 -0.29 143 0 0 12 32 11 6 8 48.8 51 95 35 12 23 33 12 40 50 12 15 51 12 48 33 -0.29 144 0 0 12 49 13 6 8 53.6 52 96 34 12 40 35 12 57 52 12 32 53 13 5 36 -0.29 145 0 0 13 6 20 6 8 58.6 53 97 33 12 57 41 13 14 59 12 49 59 13 22 42 -0.29 146 0 0 13 23 30 6 9 3.6 54 97 32 13 14 51 13 32 9 13 7 9 13 39 53 -0.29 147 0 0 13 40 43 6 9 8.6 55 98 31 13 32 5 13 49 23 13 24 22 13 57 7 -0.29 148 0 0 13 58 0 6 9 13.7 56 99 30 13 49 21 14 6 39 13 41 38 14 14 23 -0.29 149 0 0 14 15 19 6 9 18.9 57 100 29 14 6 40 14 23 59 13 58 57 14 31 43 -0.29 150 0 0 14 32 41 6 9 24.1 58 101 28 14 24 2 14 41 20 14 16 18 14 49 5 -0.29 151 0 0 14 50 4 6 9 29.3 58 102 27 14 41 25 14 58 44 14 33 41 15 6 28 -0.29 152 0 0 15 7 29 6 9 34.7 59 103 26 14 58 49 15 16 8 14 51 6 15 23 53 -0.29 153 0 0 15 24 54 6 9 40.0 60 104 25 15 16 15 15 33 34 15 8 32 15 41 19 -0.29 154 0 0 15 42 21 6 9 45.4 61 105 24 15 33 41 15 51 1 15 25 58 15 58 45 -0.29 155 0 0 15 59 47 6 9 50.8 62 107 23 15 51 8 16 8 27 15 43 24 16 16 12 -0.29 156 0 0 16 17 14 6 9 56.3 63 108 22 16 8 34 16 25 53 16 0 50 16 33 38 -0.29 157 0 0 16 34 39 6 10 1.8 64 110 21 16 26 0 16 43 19 16 18 16 16 51 4 -0.29 158 0 0 16 52 4 6 10 7.3 64 111 20 16 43 25 17 0 44 16 35 41 17 8 28 -0.29 159 0 0 17 9 27 6 10 12.9 65 113 19 17 0 48 17 18 7 16 53 4 17 25 52 -0.29 160 0 0 17 26 49 6 10 18.5 66 114 17 17 18 9 17 35 29 17 10 26 17 43 13 -0.29 161 0 0 17 44 8 6 10 24.1 67 116 16 17 35 29 17 52 48 17 27 45 18 0 32 -0.29 162 0 0 18 1 25 6 10 29.7 68 118 15 17 52 46 18 10 5 17 45 2 18 17 49 -0.29 163 0 0 18 18 39 6 10 35.4 68 120 14 18 10 0 18 27 18 18 2 16 18 35 3 -0.29 164 0 0 18 35 49 6 10 41.1 69 123 13 18 27 10 18 44 29 18 19 27 18 52 13 -0.29 165 0 0 18 52 56 6 10 46.8 70 125 12 18 44 17 19 1 35 18 36 34 19 9 19 -0.29 166 0 0 19 9 59 6 10 52.5 70 128 11 19 1 20 19 18 38 18 53 37 19 26 22 -0.29 167 0 0 19 26 57 6 10 58.2 71 130 10 19 18 18 19 35 36 19 10 35 19 43 20 -0.29 168 0 0 19 43 50 6 11 3.9 71 133 9 19 35 11 19 52 29 19 27 29 20 0 13 -0.29 169 0 0 20 0 38 6 11 9.6 72 136 8 19 52 0 20 9 17 19 44 17 20 17 0 -0.29 170 0 0 20 17 21 6 11 15.4 72 139 7 20 8 42 20 25 59 20 1 0 20 33 42 -0.29 171 0 0 20 33 57 6 11 21.1 73 142 6 20 25 19 20 42 35 20 17 37 20 50 19 -0.29 172 0 0 20 50 27 6 11 26.8 73 146 5 20 41 50 20 59 6 20 34 8 21 6 49 -0.29 173 0 0 21 6 51 6 11 32.6 73 149 5 20 58 14 21 15 29 20 50 32 21 23 12 -0.29 174 0 0 21 23 8 6 11 38.3 73 153 4 21 14 31 21 31 46 21 6 49 21 39 28 -0.29 175 0 0 21 39 17 6 11 44.0 74 157 3 21 30 40 21 47 55 21 22 59 21 55 37 -0.29 176 0 0 21 55 19 6 11 49.7 74 160 2 21 46 43 22 3 56 21 39 1 22 11 38 -0.29 177 0 0 22 11 13 6 11 55.4 74 164 1 22 2 37 22 19 50 21 54 56 22 27 32 -0.29 178 0 0 22 26 59 6 12 1.1 74 168 0 22 18 23 22 35 36 22 10 42 22 43 17 -0.29 179 0 0 22 42 36 6 12 6.8 74 172 -1 22 34 0 22 51 13 22 26 20 22 58 54 -0.29 -180 0 0 22 58 5 6 12 12.4 73 175 -2 22 49 29 23 6 41 22 41 49 23 14 22 -0.29 -179 0 0 23 13 24 6 12 18.0 73 179 -3 23 4 49 23 22 0 22 57 9 23 29 40 -0.29 -178 0 0 23 28 34 6 12 23.6 73 182 -4 23 19 59 23 37 9 23 12 20 23 44 50 -0.29 -177 0 0 23 43 34 6 12 29.2 73 186 -5 23 35 0 23 52 9 23 27 21 23 59 50 -0.29 -176 0 0 23 58 25 6 12 34.8 72 189 -6 23 49 51 24 6 59 23 42 12 24 14 39 -0.29 -175 0 0 24 13 5 6 12 40.3 72 192 -7 24 4 31 24 21 39 23 56 53 24 29 19 -0.29 -174 0 0 24 27 35 6 12 45.8 71 195 -8 24 19 2 24 36 9 24 11 23 24 43 48 -0.29 -173 0 0 24 41 54 6 12 51.3 71 198 -9 24 33 21 24 50 28 24 25 43 24 58 6 -0.29 -172 0 0 24 56 2 6 12 56.8 70 201 -10 24 47 30 25 4 35 24 39 52 25 12 14 -0.29 -171 0 0 25 10 0 6 13 2.2 70 203 -11 25 1 27 25 18 32 24 53 50 25 26 10 -0.29 -170 0 0 25 23 45 6 13 7.6 69 206 -12 25 15 13 25 32 18 25 7 37 25 39 55 -0.29 -169 0 0 25 37 20 6 13 12.9 69 208 -13 25 28 48 25 45 51 25 21 12 25 53 29 -0.29 -168 0 0 25 50 42 6 13 18.2 68 210 -14 25 42 11 25 59 14 25 34 35 26 6 51 -0.29 -167 0 0 26 3 52 6 13 23.5 67 212 -14 25 55 22 26 12 24 25 47 46 26 20 0 -0.29 -166 0 0 26 16 51 6 13 28.7 67 214 -15 26 8 20 26 25 22 26 0 45 26 32 58 -0.29 -165 0 0 26 29 37 6 13 33.9 66 216 -16 26 21 7 26 38 7 26 13 32 26 45 43 -0.29 -164 0 0 26 42 10 6 13 39.0 65 218 -17 26 33 41 26 50 40 26 26 6 26 58 16 -0.29 -163 0 0 26 54 31 6 13 44.1 64 220 -18 26 46 2 27 3 0 26 38 28 27 10 36 -0.29 -162 0 0 27 6 39 6 13 49.2 64 221 -19 26 58 10 27 15 8 26 50 36 27 22 43 -0.29 -161 0 0 27 18 34 6 13 54.2 63 223 -20 27 10 5 27 27 2 27 2 32 27 34 37 -0.29 -160 0 0 27 30 15 6 13 59.1 62 224 -21 27 21 48 27 38 44 27 14 14 27 46 18 -0.29 -159 0 0 27 41 44 6 14 4.0 61 226 -22 27 33 16 27 50 12 27 25 44 27 57 45 -0.29 -158 0 0 27 52 59 6 14 8.9 61 227 -23 27 44 32 28 1 26 27 36 59 28 9 0 -0.29 -157 0 0 28 4 0 6 14 13.7 60 229 -23 27 55 34 28 12 27 27 48 1 28 20 0 -0.29 -156 0 0 28 14 48 6 14 18.5 59 230 -24 28 6 22 28 23 14 27 58 50 28 30 47 -0.29 -155 0 0 28 25 22 6 14 23.2 58 231 -25 28 16 56 28 33 48 28 9 24 28 41 20 -0.29 -154 0 0 28 35 42 6 14 27.8 57 232 -26 28 27 16 28 44 7 28 19 45 28 51 39 -0.29 -153 0 0 28 45 47 6 14 32.5 57 233 -27 28 37 22 28 54 13 28 29 52 29 1 44 -0.29 -152 0 0 28 55 39 6 14 37.0 56 234 -28 28 47 14 29 4 4 28 39 44 29 11 35 -0.29 -151 0 0 29 5 16 6 14 41.5 55 235 -29 28 56 52 29 13 41 28 49 22 29 21 12 -0.29 -150 0 0 29 14 40 6 14 45.9 54 236 -29 29 6 16 29 23 4 28 58 46 29 30 34 -0.29 -149 0 0 29 23 48 6 14 50.3 53 237 -30 29 15 25 29 32 12 29 7 55 29 39 42 -0.29 -148 0 0 29 32 42 6 14 54.6 53 238 -31 29 24 19 29 41 6 29 16 50 29 48 36 -0.29 -147 0 0 29 41 22 6 14 58.9 52 239 -32 29 32 59 29 49 45 29 25 30 29 57 14 -0.29 -146 0 0 29 49 47 6 15 3.1 51 240 -33 29 41 24 29 58 9 29 33 56 30 5 39 -0.29 -145 0 0 29 57 57 6 15 7.3 50 241 -34 29 49 35 30 6 19 29 42 7 30 13 48 -0.29 -144 0 0 30 5 52 6 15 11.3 49 242 -34 29 57 30 30 14 14 29 50 3 30 21 43 -0.29 -143 0 0 30 13 32 6 15 15.4 48 243 -35 30 5 11 30 21 54 29 57 44 30 29 23 -0.29 -142 0 0 30 20 58 6 15 19.3 48 244 -36 30 12 37 30 29 19 30 5 10 30 36 47 -0.29 -141 0 0 30 28 9 6 15 23.3 47 244 -37 30 19 48 30 36 30 30 12 21 30 43 57 -0.29 -140 0 0 30 35 4 6 15 27.1 46 245 -38 30 26 44 30 43 25 30 19 17 30 50 52 -0.29 -139 0 0 30 41 44 6 15 30.9 45 246 -38 30 33 24 30 50 5 30 25 58 30 57 32 -0.29 -138 0 0 30 48 10 6 15 34.6 44 247 -39 30 39 50 30 56 30 30 32 24 31 3 57 -0.29 -137 0 0 30 54 20 6 15 38.3 43 248 -40 30 46 0 31 2 40 30 38 35 31 10 7 -0.29 -136 0 0 31 0 15 6 15 41.9 42 248 -41 30 51 56 31 8 35 30 44 30 31 16 1 -0.29 -135 0 0 31 5 55 6 15 45.4 42 249 -42 30 57 36 31 14 14 30 50 10 31 21 40 -0.29 -134 0 0 31 11 19 6 15 48.9 41 250 -42 31 3 0 31 19 38 30 55 35 31 27 4 -0.29 -133 0 0 31 16 28 6 15 52.3 40 250 -43 31 8 10 31 24 47 31 0 45 31 32 13 -0.29 -132 0 0 31 21 22 6 15 55.6 39 251 -44 31 13 4 31 29 41 31 5 39 31 37 7 -0.29 -131 0 0 31 26 1 6 15 58.9 38 252 -45 31 17 43 31 34 19 31 10 18 31 41 45 -0.29 -130 0 0 31 30 24 6 16 2.1 37 252 -45 31 22 6 31 38 42 31 14 42 31 46 8 -0.29 -129 0 0 31 34 32 6 16 5.2 37 253 -46 31 26 14 31 42 50 31 18 50 31 50 15 -0.29 -128 0 0 31 38 25 6 16 8.3 36 254 -47 31 30 7 31 46 42 31 22 43 31 54 7 -0.29 -127 0 0 31 42 2 6 16 11.3 35 254 -47 31 33 44 31 50 19 31 26 20 31 57 44 -0.29 -126 0 0 31 45 23 6 16 14.3 34 255 -48 31 37 6 31 53 41 31 29 42 32 1 6 -0.29 -125 0 0 31 48 30 6 16 17.1 33 256 -49 31 40 13 31 56 47 31 32 49 32 4 12 -0.29 -124 0 0 31 51 21 6 16 19.9 32 256 -50 31 43 4 31 59 38 31 35 40 32 7 2 -0.29 -123 0 0 31 53 56 6 16 22.7 31 257 -50 31 45 39 32 2 13 31 38 16 32 9 37 -0.29 -122 0 0 31 56 16 6 16 25.4 31 258 -51 31 47 59 32 4 33 31 40 36 32 11 57 -0.29 -121 0 0 31 58 21 6 16 28.0 30 258 -52 31 50 4 32 6 38 31 42 41 32 14 2 -0.29 -120 0 0 32 0 10 6 16 30.5 29 259 -52 31 51 53 32 8 27 31 44 30 32 15 51 -0.29 -119 0 0 32 1 44 6 16 33.0 28 259 -53 31 53 27 32 10 0 31 46 4 32 17 24 -0.29 -118 0 0 32 3 2 6 16 35.4 27 260 -53 31 54 45 32 11 19 31 47 22 32 18 42 -0.29 -117 0 0 32 4 5 6 16 37.7 26 261 -54 31 55 48 32 12 21 31 48 25 32 19 45 -0.29 -116 0 0 32 4 52 6 16 40.0 26 261 -55 31 56 36 32 13 9 31 49 13 32 20 33 -0.29 -115 0 0 32 5 24 6 16 42.1 25 262 -55 31 57 8 32 13 41 31 49 45 32 21 5 -0.29 -114 0 0 32 5 41 6 16 44.3 24 262 -56 31 57 25 32 13 58 31 50 2 32 21 22 -0.30 -113 0 0 32 5 42 6 16 46.3 23 263 -56 31 57 26 32 13 59 31 50 3 32 21 23 -0.30 -112 0 0 32 5 28 6 16 48.3 22 264 -57 31 57 12 32 13 45 31 49 49 32 21 9 -0.30 -111 0 0 32 4 59 6 16 50.2 21 264 -58 31 56 43 32 13 16 31 49 20 32 20 40 -0.30 -110 0 0 32 4 14 6 16 52.0 20 265 -58 31 55 58 32 12 31 31 48 35 32 19 55 -0.30 -109 0 0 32 3 14 6 16 53.8 20 265 -59 31 54 58 32 11 31 31 47 35 32 18 55 -0.30 -108 0 0 32 1 59 6 16 55.5 19 266 -59 31 53 42 32 10 16 31 46 19 32 17 40 -0.30 -107 0 0 32 0 28 6 16 57.1 18 266 -60 31 52 12 32 8 45 31 44 48 32 16 10 -0.30 -106 0 0 31 58 43 6 16 58.7 17 267 -60 31 50 26 32 7 0 31 43 2 32 14 24 -0.30 -105 0 0 31 56 41 6 17 0.2 16 268 -61 31 48 25 32 4 59 31 41 1 32 12 23 -0.30 -104 0 0 31 54 25 6 17 1.6 15 268 -61 31 46 8 32 2 43 31 38 45 32 10 7 -0.30 -103 0 0 31 51 54 6 17 2.9 15 269 -61 31 43 37 32 0 11 31 36 13 32 7 36 -0.30 -102 0 0 31 49 7 6 17 4.1 14 269 -62 31 40 50 31 57 25 31 33 26 32 4 49 -0.30 -101 0 0 31 46 5 6 17 5.3 13 270 -62 31 37 48 31 54 23 31 30 24 32 1 48 -0.30 -100 0 0 31 42 49 6 17 6.4 12 270 -62 31 34 31 31 51 7 31 27 7 31 58 32 -0.30 - 99 0 0 31 39 17 6 17 7.5 11 271 -63 31 30 59 31 47 35 31 23 35 31 55 0 -0.31 - 98 0 0 31 35 30 6 17 8.4 10 271 -63 31 27 12 31 43 48 31 19 48 31 51 14 -0.31 - 97 0 0 31 31 28 6 17 9.3 9 272 -63 31 23 10 31 39 47 31 15 45 31 47 12 -0.31 - 96 0 0 31 27 11 6 17 10.1 9 272 -64 31 18 53 31 35 30 31 11 28 31 42 56 -0.31 - 95 0 0 31 22 40 6 17 10.8 8 273 -64 31 14 21 31 30 59 31 6 56 31 38 25 -0.31 - 94 0 0 31 17 53 6 17 11.5 7 273 -64 31 9 34 31 26 13 31 2 9 31 33 39 -0.32 - 93 0 0 31 12 52 6 17 12.1 6 274 -64 31 4 33 31 21 12 30 57 7 31 28 38 -0.32 - 92 0 0 31 7 36 6 17 12.6 5 274 -64 30 59 17 31 15 56 30 51 51 31 23 22 -0.33 - 91 0 0 31 2 5 6 17 13.0 4 275 -64 30 53 46 31 10 25 30 46 20 31 17 52 -0.33 - 90 0 0 30 56 20 6 17 13.3 3 275 -64 30 48 0 31 4 40 30 40 34 31 12 7 -0.34 - 89 0 0 30 50 20 6 17 13.6 2 276 -64 30 42 0 30 58 41 30 34 33 31 6 8 -0.36 - 88 0 0 30 44 6 6 17 13.8 2 277 -64 30 35 45 30 52 26 30 28 18 30 59 54 -0.40 - 87 0 0 30 37 37 6 17 13.9 1 277 -64 30 29 16 30 45 58 30 21 49 30 53 26 -0.53 Uncertainty in time = +/- 2 secs Prediction of 2022 Feb 14.8 Data for the target star ------------------------ * name: TYC 112-01772-1 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 16 09.6742 DE: +06 24 39.941 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 16 09.6741 DE: +06 24 39.941 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.4 * B mag [mag]: 11.9 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (771) Libera asteroid class: approx. diameter [km]: 29 approx. diameter ["]: 0.023 distance from Earth [AU]: 1.73210 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#89 date of fit: 2022 Feb 04 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): 0.025", 0.003", 99.892° remarks: * orbital elements for (771)Libera : Mean anomaly = 13.6223328373 deg Arg. of pericenter = 228.5875380179 deg Long. of node = 217.8641815976 deg Inclination = 14.8907291001 deg Eccentricity = 0.2470016527 Semimajor axis = 2.6518913172 AU Perihelion dist = 1.9968697792 AU Mag: H = 10.32, G = 0.15 Epoch of elements : MJD 59645.25828750 TDT (2022 Mar 07.2583) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#892022Feb04,1.52,2022,3,7,6.198903,-0.069287,0.269897,10.525880,2.699019,0.005398,0.000471,0.000000,0.000000 -178.5969,6.4339,89.79,-5.27,False TYC 112-01772-1,5.26935394,6.4110947,11.90,11.40,11.13,0.0,0,,5.28899429,6.4339282,3.00,2.83,0,0,0 771,Libera,14.33,29.3,1.7321,0,0,3.586,13.70,,1.8 0,13.5634,2022,3,7,228.5875,217.8642,14.8907,0.24700,2.65189,1.99687,10.32,5.0,0.15 1.447,0.0247,0.0027,100,0.0104,Known errors,-1.00,-1,-1,-1 20220307_1772-1,59624.81 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Feb 14, 19:22 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org