IOTA/IOTA-ES occultation update for (101) Helena / UCAC4 599-005824 event on 2022 Nov 30, 04:54 UT Visible from E Canada, USA Summary ------- On 2022 Nov 30 UT, the 65 km diameter asteroid (101) Helena will occult a 12.2 mag star in the constellation Triangulum for observers along a path across E Canada, USA. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.63 mag to 11.91 mag (the magnitude of the asteroid) for at most 8.080 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: 95 * date and approx. time of event: 2022 Nov 30, 04:41 - 2022 Nov 30, 05:07 * geocentric midpoint of event [JD]: 2459913.70464266 * magnitude of target star: 12.18 * magnitude drop [mag]: 0.63 * estimated maximum duration [s]: 8.080 * Moon: 45 % sunlit, 72° distance * Sun: 151° distance * rough path description: E Canada, USA The occultation path -------------------- * approximate projected width [km]: 66 * 1 sigma uncertainty interval [path widths]: +/- 0.45 * 1 sigma uncertainty interval [seconds]: +/- 5.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.037, +/- 0.029) * 1 sigma uncertainty ellipse (major, minor, PA): (0.039", 0.025", 64°) * approx speed of asteroid's shadow [km/s]: 8.0455 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 599-005824 by 101 Helena on 2022 Nov 30 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 ' " Longitude Longitude Longitude Longitude .. .. .. -18 0 0 .. .. .... .. .. .. ... .. .. 169 45 50 ... .. .. 170 17 20 .... 170 50 49 -17 0 0 5 7 40.9 2 58 24 170 15 58 171 25 26 169 44 37 171 56 5 .... 172 27 54 -16 0 0 5 7 39.7 4 58 22 171 53 55 173 1 38 171 23 24 173 31 33 -0.16 174 1 50 -15 0 0 5 7 37.7 5 57 20 173 28 40 174 34 48 172 58 52 175 4 3 -0.16 175 32 59 -14 0 0 5 7 35.0 7 57 18 175 0 31 176 5 15 174 31 23 176 33 54 -0.16 177 1 36 -13 0 0 5 7 31.6 9 56 17 176 29 47 177 33 16 176 1 14 178 1 22 -0.16 178 27 57 -12 0 0 5 7 27.6 11 56 15 177 56 42 178 59 3 177 28 40 179 26 40 -0.16 179 52 14 -11 0 0 5 7 22.9 12 56 14 179 21 30 -179 37 10 178 53 57 -179 9 59 -0.16 -178 45 21 -10 0 0 5 7 17.6 14 56 12 -179 15 37 -178 15 13 -179 42 45 -177 48 25 -0.16 -177 24 38 - 9 0 0 5 7 11.7 16 55 10 -177 54 29 -176 54 54 -178 21 13 -176 28 28 -0.16 -176 5 27 - 8 0 0 5 7 5.3 17 55 9 -176 34 55 -175 36 5 -177 1 18 -175 9 58 -0.16 -174 47 40 - 7 0 0 5 6 58.3 19 55 7 -175 16 47 -174 18 38 -175 42 52 -173 52 48 -0.16 -173 31 8 - 6 0 0 5 6 50.8 20 55 6 -173 59 58 -173 2 25 -174 25 46 -172 36 51 -0.16 -172 15 46 - 5 0 0 5 6 42.9 22 55 4 -172 44 19 -171 47 19 -173 9 52 -171 21 59 -0.16 -171 1 26 - 4 0 0 5 6 34.4 24 55 3 -171 29 44 -170 33 13 -171 55 3 -170 8 5 -0.16 -169 48 3 - 3 0 0 5 6 25.4 25 55 1 -170 16 7 -169 20 2 -170 41 14 -168 55 5 -0.16 -168 35 29 - 2 0 0 5 6 16.0 27 55 0 -169 3 22 -168 7 40 -169 28 19 -167 42 53 -0.16 -167 23 41 - 1 0 0 5 6 6.2 28 55 -1 -167 51 24 -166 56 2 -168 16 12 -166 31 23 -0.16 -166 12 33 0 0 0 5 5 55.9 30 55 -3 -166 40 8 -165 45 2 -167 4 47 -165 20 31 -0.16 -165 2 0 1 0 0 5 5 45.2 31 55 -4 -165 29 27 -164 34 36 -165 54 0 -164 10 12 -0.16 Latitude Latitude Latitude Latitude -165 0 0 1 1 43 5 5 44.9 31 55 -4 1 25 9 0 38 19 1 46 5 0 17 28 -0.16 -164 0 0 1 53 6 5 5 35.3 32 55 -6 2 16 36 1 29 39 2 37 36 1 8 44 -0.16 -163 0 0 2 44 47 5 5 25.5 34 55 -7 3 8 20 2 21 15 3 29 23 2 0 18 -0.16 -162 0 0 3 36 42 5 5 15.3 35 56 -8 4 0 19 3 13 8 4 21 25 2 52 7 -0.16 -161 0 0 4 28 50 5 5 4.7 36 56 -9 4 52 30 4 5 13 5 13 39 3 44 9 -0.16 -160 0 0 5 21 9 5 4 53.8 38 56 -10 5 44 51 4 57 29 6 6 3 4 36 23 -0.16 -159 0 0 6 13 36 5 4 42.6 39 56 -12 6 37 21 5 49 54 6 58 35 5 28 46 -0.16 -158 0 0 7 6 10 5 4 31.1 40 57 -13 7 29 57 6 42 25 7 51 13 6 21 15 -0.16 -157 0 0 7 58 48 5 4 19.3 41 57 -14 8 22 37 7 35 1 8 43 54 7 13 49 -0.16 -156 0 0 8 51 27 5 4 7.3 43 57 -15 9 15 18 8 27 39 9 36 37 8 6 25 -0.16 -155 0 0 9 44 7 5 3 54.9 44 58 -16 10 7 59 9 20 17 10 29 19 8 59 2 -0.17 -154 0 0 10 36 43 5 3 42.3 45 58 -18 11 0 37 10 12 52 11 21 58 9 51 37 -0.17 -153 0 0 11 29 15 5 3 29.5 46 58 -19 11 53 10 11 5 23 12 14 32 10 44 7 -0.17 -152 0 0 12 21 41 5 3 16.4 48 59 -20 12 45 35 11 57 48 13 6 58 11 36 32 -0.17 -151 0 0 13 13 57 5 3 3.1 49 59 -21 13 37 52 12 50 4 13 59 15 12 28 47 -0.17 -150 0 0 14 6 2 5 2 49.6 50 60 -22 14 29 57 13 42 9 14 51 20 13 20 52 -0.17 -149 0 0 14 57 54 5 2 36.0 51 61 -23 15 21 49 14 34 1 15 43 11 14 12 45 -0.17 -148 0 0 15 49 30 5 2 22.1 52 61 -24 16 13 25 15 25 39 16 34 47 15 4 23 -0.17 -147 0 0 16 40 50 5 2 8.1 54 62 -25 17 4 43 16 16 59 17 26 5 15 55 44 -0.17 -146 0 0 17 31 50 5 1 54.0 55 63 -27 17 55 43 17 8 0 18 17 3 16 46 46 -0.17 -145 0 0 18 22 30 5 1 39.8 56 63 -28 18 46 21 17 58 41 19 7 40 17 37 28 -0.17 -144 0 0 19 12 46 5 1 25.4 57 64 -29 19 36 36 18 49 0 19 57 53 18 27 48 -0.17 -143 0 0 20 2 38 5 1 10.9 58 65 -30 20 26 26 19 38 54 20 47 42 19 17 44 -0.17 -142 0 0 20 52 4 5 0 56.4 59 66 -31 21 15 50 20 28 22 21 37 3 20 7 14 -0.17 -141 0 0 21 41 3 5 0 41.8 61 67 -32 22 4 45 21 17 22 22 25 57 20 56 17 -0.18 -140 0 0 22 29 31 5 0 27.2 62 68 -33 22 53 11 22 5 54 23 14 21 21 44 51 -0.18 -139 0 0 23 17 30 5 0 12.5 63 69 -34 23 41 7 22 53 55 24 2 13 22 32 55 -0.18 -138 0 0 24 4 56 4 59 57.8 64 71 -35 24 28 30 23 41 24 24 49 34 23 20 27 -0.18 -137 0 0 24 51 48 4 59 43.1 65 72 -36 25 15 19 24 28 20 25 36 20 24 7 26 -0.18 -136 0 0 25 38 7 4 59 28.5 66 73 -37 26 1 33 25 14 42 26 22 31 24 53 51 -0.18 -135 0 0 26 23 49 4 59 13.8 67 75 -38 26 47 12 26 0 28 27 8 6 25 39 40 -0.18 -134 0 0 27 8 55 4 58 59.1 68 77 -39 27 32 14 26 45 38 27 53 4 26 24 54 -0.18 -133 0 0 27 53 23 4 58 44.5 69 78 -40 28 16 38 27 30 10 28 37 25 27 9 30 -0.18 -132 0 0 28 37 12 4 58 30.0 70 80 -41 29 0 23 28 14 4 29 21 6 27 53 28 -0.18 -131 0 0 29 20 23 4 58 15.5 71 83 -41 29 43 28 28 57 19 30 4 7 28 36 46 -0.18 -130 0 0 30 2 53 4 58 1.1 72 85 -42 30 25 54 29 39 54 30 46 28 29 19 26 -0.18 -129 0 0 30 44 42 4 57 46.8 72 87 -43 31 7 38 30 21 48 31 28 8 30 1 24 -0.19 -128 0 0 31 25 50 4 57 32.5 73 90 -44 31 48 41 31 3 2 32 9 7 30 42 42 -0.19 -127 0 0 32 6 17 4 57 18.4 74 93 -45 32 29 3 31 43 33 32 49 24 31 23 18 -0.19 -126 0 0 32 46 1 4 57 4.3 75 96 -45 33 8 42 32 23 23 33 28 58 32 3 12 -0.19 -125 0 0 33 25 3 4 56 50.4 75 99 -46 33 47 38 33 2 30 34 7 49 32 42 24 -0.19 -124 0 0 34 3 22 4 56 36.6 76 103 -47 34 25 51 33 40 54 34 45 58 33 20 54 -0.19 -123 0 0 34 40 58 4 56 22.9 77 107 -48 35 3 22 34 18 36 35 23 23 33 58 40 -0.19 -122 0 0 35 17 50 4 56 9.4 77 111 -48 35 40 9 34 55 34 36 0 5 34 35 44 -0.19 -121 0 0 35 54 0 4 55 55.9 78 115 -49 36 16 12 35 31 50 36 36 3 35 12 4 -0.19 -120 0 0 36 29 26 4 55 42.7 78 120 -50 36 51 33 36 7 22 37 11 18 35 47 42 -0.19 -119 0 0 37 4 9 4 55 29.5 78 125 -50 37 26 9 36 42 11 37 45 50 36 22 36 -0.20 -118 0 0 37 38 8 4 55 16.5 79 130 -51 38 0 3 37 16 16 38 19 38 36 56 47 -0.20 -117 0 0 38 11 25 4 55 3.6 79 136 -52 38 33 13 37 49 38 38 52 43 37 30 14 -0.20 -116 0 0 38 43 58 4 54 50.9 79 141 -52 39 5 40 38 22 18 39 25 5 38 2 59 -0.20 -115 0 0 39 15 49 4 54 38.4 79 146 -53 39 37 25 38 54 14 39 56 43 38 35 1 -0.20 -114 0 0 39 46 56 4 54 26.0 79 151 -53 40 8 26 39 25 28 40 27 40 39 6 20 -0.20 -113 0 0 40 17 22 4 54 13.7 79 157 -54 40 38 46 39 56 0 40 57 53 39 36 57 -0.20 -112 0 0 40 47 5 4 54 1.6 78 162 -54 41 8 23 40 25 49 41 27 25 40 6 52 -0.20 -111 0 0 41 16 7 4 53 49.7 78 166 -55 41 37 18 40 54 57 41 56 15 40 36 5 -0.20 -110 0 0 41 44 27 4 53 37.9 78 171 -55 42 5 32 41 23 23 42 24 23 41 4 37 -0.20 -109 0 0 42 12 6 4 53 26.3 77 175 -56 42 33 5 41 51 8 42 51 51 41 32 27 -0.20 -108 0 0 42 39 4 4 53 14.8 77 179 -56 42 59 57 42 18 12 43 18 38 41 59 37 -0.20 -107 0 0 43 5 22 4 53 3.4 77 183 -57 43 26 9 42 44 36 43 44 44 42 26 6 -0.20 -106 0 0 43 31 0 4 52 52.3 76 186 -57 43 51 41 43 10 20 44 10 11 42 51 55 -0.20 -105 0 0 43 55 58 4 52 41.3 76 189 -57 44 16 34 43 35 24 44 34 58 43 17 5 -0.20 -104 0 0 44 20 18 4 52 30.4 75 192 -58 44 40 47 43 59 50 44 59 6 43 41 35 -0.20 -103 0 0 44 43 58 4 52 19.7 75 195 -58 45 4 22 44 23 36 45 22 36 44 5 27 -0.20 -102 0 0 45 7 1 4 52 9.1 74 198 -58 45 27 19 44 46 45 45 45 28 44 28 40 -0.20 -101 0 0 45 29 26 4 51 58.7 73 200 -58 45 49 38 45 9 15 46 7 42 44 51 16 -0.20 -100 0 0 45 51 14 4 51 48.4 73 203 -59 46 11 20 45 31 9 46 29 19 45 13 14 -0.20 - 99 0 0 46 12 25 4 51 38.2 72 205 -59 46 32 26 45 52 25 46 50 19 45 34 36 -0.20 - 98 0 0 46 32 59 4 51 28.2 72 207 -59 46 52 55 46 13 5 47 10 44 45 55 21 -0.20 - 97 0 0 46 52 58 4 51 18.4 71 209 -59 47 12 49 46 33 9 47 30 32 46 15 30 -0.20 - 96 0 0 47 12 22 4 51 8.6 70 211 -60 47 32 7 46 52 38 47 49 46 46 35 3 -0.20 - 95 0 0 47 31 11 4 50 59.1 70 213 -60 47 50 51 47 11 32 48 8 25 46 54 2 -0.20 - 94 0 0 47 49 25 4 50 49.6 69 214 -60 48 9 0 47 29 51 48 26 29 47 12 25 -0.20 - 93 0 0 48 7 5 4 50 40.3 69 216 -60 48 26 35 47 47 37 48 44 0 47 30 15 -0.20 - 92 0 0 48 24 12 4 50 31.1 68 218 -60 48 43 37 48 4 48 49 0 58 47 47 31 -0.20 - 91 0 0 48 40 46 4 50 22.0 67 219 -60 49 0 6 48 21 27 49 17 23 48 4 14 -0.20 - 90 0 0 48 56 47 4 50 13.0 67 221 -60 49 16 2 48 37 33 49 33 15 48 20 24 -0.20 - 89 0 0 49 12 16 4 50 4.2 66 222 -60 49 31 27 48 53 6 49 48 35 48 36 1 -0.20 - 88 0 0 49 27 13 4 49 55.5 66 223 -60 49 46 19 49 8 8 50 3 24 48 51 7 -0.20 - 87 0 0 49 41 39 4 49 46.9 65 225 -60 50 0 41 49 22 38 50 17 42 49 5 41 -0.20 - 86 0 0 49 55 34 4 49 38.4 64 226 -60 50 14 32 49 36 37 50 31 28 49 19 44 -0.20 - 85 0 0 50 8 58 4 49 30.0 64 227 -60 50 27 52 49 50 5 50 44 45 49 33 16 -0.20 - 84 0 0 50 21 52 4 49 21.8 63 229 -60 50 40 42 50 3 3 50 57 32 49 46 17 -0.20 - 83 0 0 50 34 17 4 49 13.6 63 230 -60 50 53 3 50 15 32 51 9 49 49 58 49 -0.20 - 82 0 0 50 46 12 4 49 5.5 62 231 -60 51 4 54 50 27 30 51 21 37 50 10 51 -0.20 - 81 0 0 50 57 37 4 48 57.6 61 232 -60 51 16 16 50 39 0 51 32 56 50 22 24 -0.20 - 80 0 0 51 8 35 4 48 49.7 61 233 -60 51 27 10 50 50 1 51 43 46 50 33 27 -0.20 - 79 0 0 51 19 3 4 48 42.0 60 235 -60 51 37 35 51 0 33 51 54 9 50 44 2 -0.20 - 78 0 0 51 29 4 4 48 34.3 60 236 -60 51 47 33 51 10 37 52 4 3 50 54 9 -0.20 - 77 0 0 51 38 37 4 48 26.7 59 237 -60 51 57 3 51 20 13 52 13 31 51 3 48 -0.20 - 76 0 0 51 47 42 4 48 19.3 58 238 -60 52 6 5 51 29 21 52 22 30 51 12 59 -0.20 - 75 0 0 51 56 21 4 48 11.9 58 239 -60 52 14 41 51 38 2 52 31 3 51 21 42 -0.20 - 74 0 0 52 4 32 4 48 4.6 57 240 -60 52 22 49 51 46 16 52 39 9 51 29 58 -0.20 - 73 0 0 52 12 16 4 47 57.3 57 241 -59 52 30 31 51 54 3 52 46 49 51 37 48 -0.20 - 72 0 0 52 19 34 4 47 50.2 56 242 -59 52 37 47 52 1 23 52 54 2 51 45 10 -0.20 - 71 0 0 52 26 26 4 47 43.1 56 243 -59 52 44 36 52 8 17 53 0 50 51 52 7 -0.20 - 70 0 0 52 32 52 4 47 36.1 55 244 -59 52 51 0 52 14 45 53 7 11 51 58 36 -0.20 - 69 0 0 52 38 52 4 47 29.2 54 245 -59 52 56 58 52 20 47 53 13 8 52 4 40 -0.20 - 68 0 0 52 44 26 4 47 22.4 54 246 -58 53 2 30 52 26 23 53 18 38 52 10 18 -0.20 - 67 0 0 52 49 35 4 47 15.7 53 247 -58 53 7 37 52 31 34 53 23 44 52 15 30 -0.20 - 66 0 0 52 54 18 4 47 9.0 53 248 -58 53 12 19 52 36 19 53 28 24 52 20 17 -0.20 - 65 0 0 52 58 37 4 47 2.3 52 249 -58 53 16 36 52 40 39 53 32 39 52 24 38 -0.20 - 64 0 0 53 2 30 4 46 55.8 52 250 -58 53 20 28 52 44 33 53 36 30 52 28 34 -0.19 - 63 0 0 53 5 58 4 46 49.3 51 251 -57 53 23 55 52 48 3 53 39 56 52 32 4 -0.19 - 62 0 0 53 9 2 4 46 42.9 50 252 -57 53 26 57 52 51 7 53 42 58 52 35 10 -0.19 - 61 0 0 53 11 40 4 46 36.6 50 253 -57 53 29 35 52 53 47 53 45 34 52 37 50 -0.19 - 60 0 0 53 13 54 4 46 30.3 49 254 -56 53 31 48 52 56 2 53 47 47 52 40 6 -0.19 - 59 0 0 53 15 44 4 46 24.0 49 255 -56 53 33 37 52 57 52 53 49 35 52 41 56 -0.19 - 58 0 0 53 17 9 4 46 17.9 48 256 -56 53 35 1 52 59 17 53 50 59 52 43 22 -0.19 - 57 0 0 53 18 9 4 46 11.7 48 257 -56 53 36 1 53 0 18 53 51 58 52 44 23 -0.19 - 56 0 0 53 18 45 4 46 5.7 47 257 -55 53 36 36 53 0 54 53 52 34 52 44 59 -0.19 - 55 0 0 53 18 56 4 45 59.7 46 258 -55 53 36 48 53 1 5 53 52 45 52 45 11 -0.19 - 54 0 0 53 18 43 4 45 53.7 46 259 -55 53 36 34 53 0 52 53 52 32 52 44 58 -0.19 - 53 0 0 53 18 5 4 45 47.9 45 260 -54 53 35 57 53 0 14 53 51 54 52 44 20 -0.19 - 52 0 0 53 17 3 4 45 42.0 45 261 -54 53 34 55 52 59 12 53 50 52 52 43 17 -0.19 - 51 0 0 53 15 35 4 45 36.2 44 262 -54 53 33 28 52 57 44 53 49 26 52 41 49 -0.19 - 50 0 0 53 13 44 4 45 30.5 44 263 -53 53 31 37 52 55 52 53 47 35 52 39 56 -0.19 - 49 0 0 53 11 27 4 45 24.8 43 264 -53 53 29 21 52 53 34 53 45 20 52 37 38 -0.19 - 48 0 0 53 8 46 4 45 19.2 42 265 -53 53 26 40 52 50 52 53 42 40 52 34 55 -0.19 - 47 0 0 53 5 39 4 45 13.6 42 265 -52 53 23 35 52 47 45 53 39 36 52 31 46 -0.19 - 46 0 0 53 2 8 4 45 8.1 41 266 -52 53 20 4 52 44 12 53 36 6 52 28 13 -0.19 - 45 0 0 52 58 11 4 45 2.6 41 267 -52 53 16 9 52 40 14 53 32 12 52 24 13 -0.19 - 44 0 0 52 53 48 4 44 57.1 40 268 -51 53 11 48 52 35 50 53 27 52 52 19 48 -0.19 - 43 0 0 52 49 1 4 44 51.7 40 269 -51 53 7 2 52 31 1 53 23 7 52 14 58 -0.19 - 42 0 0 52 43 47 4 44 46.4 39 270 -50 53 1 50 52 25 45 53 17 57 52 9 41 -0.19 - 41 0 0 52 38 7 4 44 41.1 38 271 -50 52 56 12 52 20 4 53 12 21 52 3 57 -0.19 - 40 0 0 52 32 1 4 44 35.8 38 271 -50 52 50 8 52 13 56 53 6 19 51 57 48 -0.19 - 39 0 0 52 25 29 4 44 30.6 37 272 -49 52 43 38 52 7 21 52 59 50 51 51 11 -0.19 - 38 0 0 52 18 30 4 44 25.4 37 273 -49 52 36 41 52 0 20 52 52 55 51 44 8 -0.19 - 37 0 0 52 11 4 4 44 20.3 36 274 -48 52 29 17 51 52 51 52 45 34 51 36 37 -0.19 - 36 0 0 52 3 11 4 44 15.3 35 275 -48 52 21 27 51 44 56 52 37 46 51 28 39 -0.19 - 35 0 0 51 54 50 4 44 10.2 35 276 -47 52 13 8 51 36 32 52 29 30 51 20 13 -0.19 - 34 0 0 51 46 1 4 44 5.2 34 276 -47 52 4 23 51 27 41 52 20 47 51 11 19 -0.19 - 33 0 0 51 36 44 4 44 0.3 33 277 -46 51 55 9 51 18 21 52 11 36 51 1 57 -0.19 - 32 0 0 51 26 59 4 43 55.4 33 278 -46 51 45 27 51 8 32 52 1 56 50 52 6 -0.19 - 31 0 0 51 16 45 4 43 50.6 32 279 -46 51 35 16 50 58 15 51 51 48 50 41 45 -0.19 - 30 0 0 51 6 1 4 43 45.8 32 280 -45 51 24 36 50 47 28 51 41 11 50 30 55 -0.19 - 29 0 0 50 54 48 4 43 41.1 31 281 -45 51 13 26 50 36 11 51 30 5 50 19 35 -0.19 - 28 0 0 50 43 5 4 43 36.4 30 281 -44 51 1 47 50 24 24 51 18 29 50 7 45 -0.19 - 27 0 0 50 30 51 4 43 31.8 30 282 -44 50 49 37 50 12 7 51 6 22 49 55 24 -0.19 - 26 0 0 50 18 6 4 43 27.2 29 283 -43 50 36 56 49 59 18 50 53 45 49 42 32 -0.19 - 25 0 0 50 4 50 4 43 22.7 28 284 -43 50 23 44 49 45 58 50 40 37 49 29 8 -0.19 - 24 0 0 49 51 2 4 43 18.2 28 284 -42 50 10 0 49 32 5 50 26 57 49 15 12 -0.19 - 23 0 0 49 36 42 4 43 13.8 27 285 -41 49 55 45 49 17 41 50 12 45 49 0 43 -0.19 - 22 0 0 49 21 49 4 43 9.5 26 286 -41 49 40 56 49 2 43 49 58 1 48 45 41 -0.19 - 21 0 0 49 6 22 4 43 5.2 26 287 -40 49 25 34 48 47 11 49 42 43 48 30 5 -0.19 - 20 0 0 48 50 22 4 43 1.0 25 288 -40 49 9 38 48 31 6 49 26 52 48 13 56 -0.19 - 19 0 0 48 33 46 4 42 56.8 24 288 -39 48 53 8 48 14 26 49 10 26 47 57 11 -0.19 - 18 0 0 48 16 36 4 42 52.7 23 289 -39 48 36 3 47 57 11 48 53 26 47 39 51 -0.18 - 17 0 0 47 58 50 4 42 48.7 23 290 -38 48 18 23 47 39 19 48 35 50 47 21 55 -0.18 - 16 0 0 47 40 28 4 42 44.8 22 291 -37 48 0 6 47 20 52 48 17 38 47 3 23 -0.18 - 15 0 0 47 21 29 4 42 40.9 21 291 -37 47 41 13 47 1 47 47 58 50 46 44 14 -0.18 - 14 0 0 47 1 53 4 42 37.2 21 292 -36 47 21 42 46 42 5 47 39 24 46 24 26 -0.18 - 13 0 0 46 41 38 4 42 33.5 20 293 -36 47 1 33 46 21 45 47 19 21 46 4 1 -0.18 - 12 0 0 46 20 45 4 42 29.9 19 294 -35 46 40 46 46 0 45 46 58 39 45 42 56 -0.18 - 11 0 0 45 59 12 4 42 26.4 18 294 -34 46 19 19 45 39 6 46 37 18 45 21 12 -0.18 - 10 0 0 45 36 59 4 42 23.0 18 295 -34 45 57 12 45 16 47 46 15 16 44 58 47 -0.18 - 9 0 0 45 14 5 4 42 19.7 17 296 -33 45 34 25 44 53 47 45 52 35 44 35 41 -0.18 - 8 0 0 44 50 30 4 42 16.5 16 296 -32 45 10 56 44 30 5 45 29 12 44 11 54 -0.19 - 7 0 0 44 26 13 4 42 13.4 15 297 -32 44 46 45 44 5 41 45 5 7 43 47 24 -0.19 - 6 0 0 44 1 12 4 42 10.4 14 298 -31 44 21 52 43 40 34 44 40 19 43 22 11 -0.19 - 5 0 0 43 35 29 4 42 7.6 13 299 -30 43 56 15 43 14 44 44 14 48 42 56 14 -0.19 - 4 0 0 43 9 0 4 42 4.9 13 299 -29 43 29 54 42 48 9 43 48 33 42 29 33 -0.19 - 3 0 0 42 41 47 4 42 2.3 12 300 -29 43 2 48 42 20 49 43 21 34 42 2 7 -0.19 - 2 0 0 42 13 49 4 41 59.9 11 301 -28 42 34 56 41 52 43 42 53 48 41 33 55 -0.19 - 1 0 0 41 45 4 4 41 57.6 10 301 -27 42 6 18 41 23 51 42 25 17 41 4 56 -0.19 0 0 0 41 15 31 4 41 55.5 9 302 -26 41 36 53 40 54 11 41 55 59 40 35 10 -0.19 1 0 0 40 45 12 4 41 53.6 8 303 -25 41 6 41 40 23 44 41 25 53 40 4 36 -0.20 2 0 0 40 14 4 4 41 51.8 7 303 -25 40 35 40 39 52 29 40 54 59 39 33 14 -0.20 3 0 0 39 42 7 4 41 50.2 6 304 -24 40 3 51 39 20 24 40 23 16 39 1 3 -0.20 4 0 0 39 9 20 4 41 48.8 5 304 -23 39 31 12 38 47 30 39 50 44 38 28 3 -0.21 5 0 0 38 35 44 4 41 47.6 4 305 -22 38 57 43 38 13 46 39 17 22 37 54 12 -0.22 6 0 0 38 1 17 4 41 46.6 4 306 -21 38 23 24 37 39 12 38 43 10 37 19 30 -0.23 7 0 0 37 25 59 4 41 45.9 3 306 -20 37 48 13 37 3 46 38 8 6 36 43 58 -0.26 8 0 0 36 49 49 4 41 45.4 2 307 -19 37 12 11 36 27 28 37 32 11 36 7 33 -0.33 9 0 0 36 12 47 4 41 45.1 1 307 -19 36 35 17 35 50 19 36 55 23 35 30 17 -0.65 Uncertainty in time = +/- 6 secs Prediction of 2022 Oct 2.0 Data for the target star ------------------------ * name: UCAC4 599-005824 * constellation : Triangulum * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 02 17 08.3004 DE: +29 44 47.187 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 02 17 08.3004 DE: +29 44 47.187 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (101) Helena asteroid class: approx. diameter [km]: 65 approx. diameter ["]: 0.057 distance from Earth [AU]: 1.57010 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#119 date of fit: 2022 Sep 21 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): 0.039", 0.025", 63.566° remarks: * orbital elements for (101)Helena : Mean anomaly = 65.3334499461 deg Arg. of pericenter = 347.9989926700 deg Long. of node = 343.3742951038 deg Inclination = 10.1950784866 deg Eccentricity = 0.1411950815 Semimajor axis = 2.5829303456 AU Perihelion dist = 2.2182332849 AU Mag: H = 8.25, G = 0.35 Epoch of elements : MJD 59913.20458333 TDT (2022 Nov 30.2046) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1192022Sep21,8.08,2022,11,30,4.911424,-0.096249,0.161024,-3.872792,-2.371305,0.002853,-0.000415,0.000001,0.000001 -108.1001,29.8539,103.47,-21.63,False UCAC4 599-005824,2.28563901,29.7464407,0.00,12.18,0.00,0.0,0,,2.30803255,29.8539315,0.62,0.00,0,0,0 101,Helena,11.91,65.0,1.5701,0,0,-1.666,-13.28,,3.2,0 0,65.2849,2022,11,30,347.9990,343.3743,10.1951,0.14120,2.58293,2.21823,8.26,5.0,0.15 1.446,0.0393,0.0253,64,0.0255,Known errors,-1.00,-1,-1,-1 20221130_005824,59854.01 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Oct 02, 00:11 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org