IOTA/IOTA-ES occultation update for (1627) Ivar / TYC 1445-01950-1 event on 2023 May 21, 01:43 UT Visible from E Canada, E USA, Central America Summary ------- On 2023 May 21 UT, the 9.44424116984049 km diameter asteroid (1627) Ivar will occult a 9.9 mag star in the constellation Coma Berenices for observers along a path across E Canada, E USA, Central America. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.08 mag to 13.95 mag (the magnitude of the asteroid) for at most 4.960 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: 76 * date and approx. time of event: 2023 May 21, 00:49 - 2023 May 21, 02:38 * geocentric midpoint of event [JD]: 2460085.57205817 * magnitude of target star: 9.90 * magnitude drop [mag]: 4.08 * estimated maximum duration [s]: 4.960 * Moon: 2 % sunlit, 101° distance * Sun: 118° distance * rough path description: E Canada, E USA, Central America The occultation path -------------------- * approximate projected width [km]: 10 * 1 sigma uncertainty interval [path widths]: +/- 0.74 * 1 sigma uncertainty interval [seconds]: +/- 4.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.015) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.012", 12°) * approx speed of asteroid's shadow [km/s]: 1.9069 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1445-01950-1 by 1627 Ivar on 2023 May 21 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 -169 0 0 -35 59 37 2 37 26.5 1 70 16 -35 56 50 -36 2 24 -35 52 42 -36 6 31 .... -168 0 0 -35 41 16 2 37 25.5 2 69 16 -35 38 28 -35 44 4 -35 34 20 -35 48 12 -0.21 -167 0 0 -35 22 7 2 37 23.7 2 69 15 -35 19 19 -35 24 56 -35 15 9 -35 29 5 -0.21 -166 0 0 -35 2 9 2 37 21.1 3 68 15 -34 59 19 -35 4 58 -34 55 9 -35 9 9 -0.21 -165 0 0 -34 41 21 2 37 17.6 4 68 14 -34 38 31 -34 44 11 -34 34 19 -34 48 23 -0.21 -164 0 0 -34 19 43 2 37 13.3 5 67 14 -34 16 52 -34 22 34 -34 12 39 -34 26 48 -0.20 -163 0 0 -33 57 15 2 37 8.2 6 67 13 -33 54 24 -34 0 7 -33 50 9 -34 4 22 -0.20 -162 0 0 -33 33 57 2 37 2.1 7 66 13 -33 31 4 -33 36 50 -33 26 48 -33 41 6 -0.20 -161 0 0 -33 9 47 2 36 55.1 8 66 13 -33 6 54 -33 12 41 -33 2 36 -33 16 58 -0.20 -160 0 0 -32 44 46 2 36 47.3 9 65 12 -32 41 52 -32 47 41 -32 37 33 -32 52 0 -0.19 -159 0 0 -32 18 53 2 36 38.4 10 64 12 -32 15 58 -32 21 49 -32 11 37 -32 26 9 -0.19 -158 0 0 -31 52 9 2 36 28.7 11 64 11 -31 49 12 -31 55 5 -31 44 50 -31 59 27 -0.19 -157 0 0 -31 24 31 2 36 17.9 11 64 11 -31 21 33 -31 27 29 -31 17 10 -31 31 52 -0.19 -156 0 0 -30 56 1 2 36 6.1 12 63 10 -30 53 2 -30 59 0 -30 48 37 -31 3 24 -0.18 -155 0 0 -30 26 38 2 35 53.3 13 63 10 -30 23 38 -30 29 37 -30 19 12 -30 34 4 -0.18 -154 0 0 -29 56 21 2 35 39.5 14 62 9 -29 53 20 -29 59 22 -29 48 52 -30 3 49 -0.18 -153 0 0 -29 25 11 2 35 24.6 15 62 9 -29 22 9 -29 28 12 -29 17 39 -29 32 42 -0.18 -152 0 0 -28 53 6 2 35 8.6 16 61 8 -28 50 3 -28 56 9 -28 45 32 -29 0 40 -0.18 -151 0 0 -28 20 8 2 34 51.5 17 61 8 -28 17 4 -28 23 12 -28 12 31 -28 27 45 -0.17 -150 0 0 -27 46 16 2 34 33.3 18 60 8 -27 43 10 -27 49 21 -27 38 36 -27 53 55 -0.17 -149 0 0 -27 11 29 2 34 13.9 19 60 7 -27 8 22 -27 14 35 -27 3 46 -27 19 11 -0.17 -148 0 0 -26 35 47 2 33 53.3 20 60 7 -26 32 40 -26 38 55 -26 28 2 -26 43 32 -0.17 -147 0 0 -25 59 12 2 33 31.5 21 59 6 -25 56 3 -26 2 20 -25 51 24 -26 6 59 -0.17 -146 0 0 -25 21 42 2 33 8.6 22 59 6 -25 18 32 -25 24 51 -25 13 51 -25 29 32 -0.17 -145 0 0 -24 43 17 2 32 44.3 23 59 5 -24 40 6 -24 46 28 -24 35 24 -24 51 10 -0.16 -144 0 0 -24 3 58 2 32 18.9 24 58 5 -24 0 46 -24 7 10 -23 56 2 -24 11 54 -0.16 -143 0 0 -23 23 45 2 31 52.1 25 58 4 -23 20 32 -23 26 58 -23 15 46 -23 31 44 -0.16 -142 0 0 -22 42 39 2 31 24.1 26 58 4 -22 39 25 -22 45 53 -22 34 37 -22 50 41 -0.16 -141 0 0 -22 0 39 2 30 54.8 27 57 3 -21 57 23 -22 3 54 -21 52 34 -22 8 43 -0.16 -140 0 0 -21 17 45 2 30 24.1 29 57 3 -21 14 29 -21 21 2 -21 9 38 -21 25 53 -0.16 -139 0 0 -20 33 59 2 29 52.1 30 57 2 -20 30 42 -20 37 17 -20 25 49 -20 42 9 -0.16 -138 0 0 -19 49 21 2 29 18.8 31 57 2 -19 46 2 -19 52 40 -19 41 8 -19 57 34 -0.16 -137 0 0 -19 3 51 2 28 44.1 32 57 2 -19 0 31 -19 7 11 -18 55 35 -19 12 7 -0.16 -136 0 0 -18 17 30 2 28 8.1 33 57 1 -18 14 9 -18 20 51 -18 9 11 -18 25 48 -0.16 -135 0 0 -17 30 18 2 27 30.7 34 56 1 -17 26 57 -17 33 40 -17 21 57 -17 38 40 -0.16 -134 0 0 -16 42 17 2 26 51.9 35 56 0 -16 38 54 -16 45 40 -16 33 53 -16 50 41 -0.16 -133 0 0 -15 53 27 2 26 11.8 36 56 0 -15 50 3 -15 56 51 -15 45 1 -16 1 54 -0.16 -132 0 0 -15 3 50 2 25 30.3 37 56 -1 -15 0 24 -15 7 15 -14 55 20 -15 12 19 -0.16 -131 0 0 -14 13 25 2 24 47.4 38 56 -1 -14 9 58 -14 16 51 -14 4 53 -14 21 56 -0.16 -130 0 0 -13 22 14 2 24 3.1 40 56 -2 -13 18 46 -13 25 41 -13 13 39 -13 30 48 -0.16 -129 0 0 -12 30 18 2 23 17.5 41 56 -2 -12 26 50 -12 33 46 -12 21 41 -12 38 54 -0.16 -128 0 0 -11 37 38 2 22 30.6 42 56 -3 -11 34 9 -11 41 7 -11 28 59 -11 46 17 -0.16 -127 0 0 -10 44 16 2 21 42.3 43 56 -3 -10 40 45 -10 47 46 -10 35 34 -10 52 57 -0.16 -126 0 0 - 9 50 12 2 20 52.7 44 57 -3 - 9 46 40 - 9 53 43 - 9 41 27 - 9 58 56 -0.16 -125 0 0 - 8 55 28 2 20 1.8 45 57 -4 - 8 51 55 - 8 59 0 - 8 46 41 - 9 4 14 -0.17 -124 0 0 - 8 0 5 2 19 9.6 46 57 -4 - 7 56 32 - 8 3 38 - 7 51 16 - 8 8 54 -0.17 -123 0 0 - 7 4 4 2 18 16.1 48 57 -5 - 7 0 30 - 7 7 38 - 6 55 13 - 7 12 56 -0.17 -122 0 0 - 6 7 28 2 17 21.4 49 58 -5 - 6 3 53 - 6 11 3 - 5 58 34 - 6 16 21 -0.17 -121 0 0 - 5 10 17 2 16 25.5 50 58 -5 - 5 6 41 - 5 13 53 - 5 1 20 - 5 19 13 -0.17 -120 0 0 - 4 12 32 2 15 28.5 51 59 -6 - 4 8 55 - 4 16 9 - 4 3 34 - 4 21 31 -0.18 -119 0 0 - 3 14 16 2 14 30.2 52 59 -6 - 3 10 38 - 3 17 54 - 3 5 16 - 3 23 17 -0.18 -118 0 0 - 2 15 30 2 13 30.9 53 60 -7 - 2 11 51 - 2 19 9 - 2 6 27 - 2 24 33 -0.18 -117 0 0 - 1 16 16 2 12 30.5 54 60 -7 - 1 12 36 - 1 19 55 - 1 7 10 - 1 25 20 -0.18 -116 0 0 - 0 16 34 2 11 29.1 56 61 -7 - 0 12 53 - 0 20 14 - 0 7 26 - 0 25 41 -0.19 -115 0 0 0 43 33 2 10 26.6 57 62 -8 0 47 15 0 39 52 0 52 43 0 34 24 -0.19 -114 0 0 1 44 4 2 9 23.2 58 63 -8 1 47 46 1 40 22 1 53 16 1 34 53 -0.19 -113 0 0 2 44 57 2 8 18.9 59 64 -8 2 48 40 2 41 14 2 54 11 2 35 43 -0.20 -112 0 0 3 46 10 2 7 13.8 60 65 -9 3 49 54 3 42 26 3 55 26 3 36 54 -0.20 -111 0 0 4 47 42 2 6 7.8 61 66 -9 4 51 27 4 43 57 4 57 0 4 38 24 -0.20 -110 0 0 5 49 31 2 5 1.0 62 67 -9 5 53 17 5 45 45 5 58 51 5 40 11 -0.21 -109 0 0 6 51 35 2 3 53.6 63 68 -10 6 55 22 6 47 48 7 0 57 6 42 13 -0.21 -108 0 0 7 53 53 2 2 45.5 64 70 -10 7 57 40 7 50 5 8 3 17 7 44 29 -0.21 -107 0 0 8 56 22 2 1 36.8 65 72 -10 9 0 11 8 52 34 9 5 49 8 46 56 -0.22 -106 0 0 9 59 2 2 0 27.5 66 73 -10 10 2 51 9 55 13 10 8 31 9 49 34 -0.22 -105 0 0 11 1 50 1 59 17.8 67 75 -11 11 5 40 10 58 0 11 11 21 10 52 20 -0.22 -104 0 0 12 4 45 1 58 7.6 68 78 -11 12 8 35 12 0 54 12 14 18 11 55 12 -0.23 -103 0 0 13 7 44 1 56 57.0 69 80 -11 13 11 36 13 3 52 13 17 19 12 58 10 -0.23 -102 0 0 14 10 46 1 55 46.2 70 83 -11 14 14 39 14 6 54 14 20 23 14 1 10 -0.24 -101 0 0 15 13 50 1 54 35.0 71 86 -11 15 17 43 15 9 57 15 23 29 15 4 11 -0.24 -100 0 0 16 16 53 1 53 23.7 71 89 -12 16 20 47 16 12 59 16 26 34 16 7 12 -0.24 - 99 0 0 17 19 53 1 52 12.2 72 92 -12 17 23 48 17 15 58 17 29 36 17 10 11 -0.25 - 98 0 0 18 22 49 1 51 0.7 73 96 -12 18 26 44 18 18 53 18 32 34 18 13 5 -0.25 - 97 0 0 19 25 39 1 49 49.2 73 100 -12 19 29 35 19 21 42 19 35 26 19 15 53 -0.26 - 96 0 0 20 28 21 1 48 37.7 73 104 -12 20 32 18 20 24 24 20 38 10 20 18 33 -0.26 - 95 0 0 21 30 53 1 47 26.3 74 108 -12 21 34 51 21 26 55 21 40 43 21 21 3 -0.26 - 94 0 0 22 33 13 1 46 15.1 74 112 -12 22 37 11 22 29 14 22 43 5 22 23 21 -0.27 - 93 0 0 23 35 19 1 45 4.1 74 117 -12 23 39 19 23 31 20 23 45 14 23 25 26 -0.27 - 92 0 0 24 37 10 1 43 53.4 74 122 -12 24 41 10 24 33 10 24 47 6 24 27 15 -0.28 - 91 0 0 25 38 43 1 42 43.1 74 126 -13 25 42 44 25 34 43 25 48 41 25 28 46 -0.28 - 90 0 0 26 39 57 1 41 33.2 74 131 -13 26 43 58 26 35 56 26 49 56 26 29 58 -0.29 - 89 0 0 27 40 49 1 40 23.7 74 135 -13 27 44 52 27 36 48 27 50 50 27 30 49 -0.29 - 88 0 0 28 41 19 1 39 14.8 74 139 -13 28 45 21 28 37 16 28 51 21 28 31 17 -0.29 - 87 0 0 29 41 23 1 38 6.5 73 144 -13 29 45 26 29 37 20 29 51 27 29 31 20 -0.30 - 86 0 0 30 41 0 1 36 58.8 73 147 -13 30 45 3 30 36 56 30 51 5 30 30 56 -0.30 - 85 0 0 31 40 8 1 35 51.8 72 151 -13 31 44 12 31 36 4 31 50 14 31 30 2 -0.30 - 84 0 0 32 38 45 1 34 45.5 72 155 -13 32 42 49 32 34 40 32 48 52 32 28 38 -0.31 - 83 0 0 33 36 49 1 33 40.0 71 158 -13 33 40 54 33 32 44 33 46 57 33 26 42 -0.31 - 82 0 0 34 34 19 1 32 35.4 70 161 -12 34 38 24 34 30 14 34 44 28 34 24 11 -0.31 - 81 0 0 35 31 12 1 31 31.6 69 164 -12 35 35 18 35 27 7 35 41 22 35 21 3 -0.32 - 80 0 0 36 27 27 1 30 28.8 69 166 -12 36 31 33 36 23 22 36 37 38 36 17 18 -0.32 - 79 0 0 37 23 3 1 29 26.9 68 169 -12 37 27 9 37 18 57 37 33 14 37 12 53 -0.32 - 78 0 0 38 17 57 1 28 26.0 67 171 -12 38 22 3 38 13 51 38 28 8 38 7 47 -0.32 - 77 0 0 39 12 7 1 27 26.2 66 173 -12 39 16 13 39 8 1 39 22 18 39 1 57 -0.33 - 76 0 0 40 5 33 1 26 27.4 66 175 -12 40 9 39 40 1 27 40 15 44 39 55 23 -0.33 - 75 0 0 40 58 13 1 25 29.7 65 177 -12 41 2 19 40 54 7 41 8 24 40 48 3 -0.33 - 74 0 0 41 50 5 1 24 33.1 64 179 -12 41 54 11 41 45 59 42 0 15 41 39 56 -0.33 - 73 0 0 42 41 8 1 23 37.6 63 180 -12 42 45 14 42 37 3 42 51 18 42 31 0 -0.33 - 72 0 0 43 31 21 1 22 43.3 62 182 -11 43 35 26 43 27 16 43 41 30 43 21 13 -0.34 - 71 0 0 44 20 43 1 21 50.2 61 183 -11 44 24 47 44 16 38 44 30 51 44 10 36 -0.34 - 70 0 0 45 9 12 1 20 58.2 60 185 -11 45 13 16 45 5 8 45 19 19 44 59 7 -0.34 - 69 0 0 45 56 48 1 20 7.5 60 186 -11 46 0 52 45 52 44 46 6 53 45 46 44 -0.34 - 68 0 0 46 43 30 1 19 17.9 59 188 -11 46 47 33 46 39 27 46 53 33 46 33 27 -0.34 - 67 0 0 47 29 16 1 18 29.5 58 189 -11 47 33 19 47 25 14 47 39 18 47 19 16 -0.34 - 66 0 0 48 14 8 1 17 42.4 57 190 -10 48 18 9 48 10 6 48 24 7 48 4 9 -0.34 - 65 0 0 48 58 3 1 16 56.4 56 191 -10 49 2 4 48 54 2 49 8 1 48 48 6 -0.34 - 64 0 0 49 41 2 1 16 11.7 56 193 -10 49 45 1 49 37 2 49 50 57 49 31 7 -0.34 - 63 0 0 50 23 3 1 15 28.1 55 194 -10 50 27 2 50 19 5 50 32 56 50 13 12 -0.35 - 62 0 0 51 4 8 1 14 45.7 54 195 -10 51 8 6 51 0 11 51 13 59 50 54 19 -0.35 - 61 0 0 51 44 16 1 14 4.5 53 196 -10 51 48 13 51 40 20 51 54 4 51 34 30 -0.35 - 60 0 0 52 23 27 1 13 24.4 52 197 -9 52 27 22 52 19 32 52 33 11 52 13 44 -0.35 - 59 0 0 53 1 41 1 12 45.4 52 198 -9 53 5 35 52 57 47 53 11 22 52 52 1 -0.35 - 58 0 0 53 38 58 1 12 7.6 51 199 -9 53 42 51 53 35 5 53 48 36 53 29 21 -0.35 - 57 0 0 54 15 19 1 11 30.9 50 200 -9 54 19 10 54 11 27 54 24 53 54 5 45 -0.35 - 56 0 0 54 50 43 1 10 55.2 49 201 -9 54 54 33 54 46 53 55 0 14 54 41 13 -0.35 - 55 0 0 55 25 12 1 10 20.6 49 202 -8 55 29 1 55 21 24 55 34 40 55 15 46 -0.35 - 54 0 0 55 58 47 1 9 47.1 48 203 -8 56 2 34 55 55 0 56 8 10 55 49 24 -0.35 - 53 0 0 56 31 26 1 9 14.5 47 204 -8 56 35 12 56 27 41 56 40 46 56 22 7 -0.35 - 52 0 0 57 3 12 1 8 42.9 47 205 -8 57 6 56 56 59 28 57 12 28 56 53 57 -0.35 - 51 0 0 57 34 5 1 8 12.3 46 206 -8 57 37 47 57 30 23 57 43 17 57 24 53 -0.35 - 50 0 0 58 4 6 1 7 42.6 45 207 -8 58 7 46 58 0 25 58 13 14 57 54 58 -0.34 - 49 0 0 58 33 15 1 7 13.8 45 208 -7 58 36 54 58 29 36 58 42 19 58 24 11 -0.34 - 48 0 0 59 1 34 1 6 45.9 44 209 -7 59 5 11 58 57 56 59 10 34 58 52 34 -0.34 - 47 0 0 59 29 3 1 6 18.8 43 210 -7 59 32 39 59 25 27 59 37 59 59 20 7 -0.34 - 46 0 0 59 55 43 1 5 52.6 43 211 -7 59 59 17 59 52 9 60 4 35 59 46 51 -0.34 - 45 0 0 60 21 35 1 5 27.2 42 211 -7 60 25 8 60 18 3 60 30 24 60 12 48 -0.34 - 44 0 0 60 46 41 1 5 2.5 42 212 -6 60 50 12 60 43 10 60 55 25 60 37 58 -0.34 - 43 0 0 61 11 1 1 4 38.6 41 213 -6 61 14 30 61 7 31 61 19 41 61 2 21 -0.34 - 42 0 0 61 34 36 1 4 15.4 40 214 -6 61 38 4 61 31 8 61 43 12 61 26 0 -0.34 - 41 0 0 61 57 27 1 3 52.9 40 215 -6 62 0 53 61 54 1 62 5 59 61 48 56 -0.34 - 40 0 0 62 19 35 1 3 31.1 39 216 -6 62 23 0 62 16 11 62 28 3 62 11 8 -0.34 - 39 0 0 62 41 1 1 3 10.0 39 217 -5 62 44 24 62 37 38 62 49 25 62 32 38 -0.34 - 38 0 0 63 1 47 1 2 49.4 38 218 -5 63 5 8 62 58 25 63 10 7 62 53 27 -0.34 - 37 0 0 63 21 52 1 2 29.5 38 219 -5 63 25 12 63 18 32 63 30 8 63 13 36 -0.34 - 36 0 0 63 41 18 1 2 10.2 37 220 -5 63 44 37 63 38 0 63 49 31 63 33 7 -0.33 - 35 0 0 64 0 7 1 1 51.4 37 221 -5 64 3 24 63 56 50 64 8 15 63 51 59 -0.33 - 34 0 0 64 18 18 1 1 33.1 36 222 -5 64 21 33 64 15 3 64 26 23 64 10 14 -0.33 - 33 0 0 64 35 53 1 1 15.4 36 222 -4 64 39 7 64 32 39 64 43 54 64 27 52 -0.33 - 32 0 0 64 52 53 1 0 58.2 35 223 -4 64 56 5 64 49 40 65 0 50 64 44 56 -0.33 - 31 0 0 65 9 18 1 0 41.5 35 224 -4 65 12 29 65 6 7 65 17 12 65 1 24 -0.33 - 30 0 0 65 25 10 1 0 25.2 34 225 -4 65 28 19 65 22 0 65 33 0 65 17 20 -0.33 - 29 0 0 65 40 29 1 0 9.4 34 226 -4 65 43 37 65 37 20 65 48 16 65 32 42 -0.33 - 28 0 0 65 55 16 0 59 54.0 33 227 -4 65 58 22 65 52 9 66 2 59 65 47 32 -0.33 - 27 0 0 66 9 31 0 59 39.1 33 228 -3 66 12 37 66 6 26 66 17 12 66 1 51 -0.33 - 26 0 0 66 23 17 0 59 24.5 33 229 -3 66 26 21 66 20 13 66 30 54 66 15 40 -0.32 - 25 0 0 66 36 33 0 59 10.3 32 230 -3 66 39 36 66 33 30 66 44 7 66 28 59 -0.32 - 24 0 0 66 49 20 0 58 56.5 32 231 -3 66 52 22 66 46 18 66 56 51 66 41 49 -0.32 - 23 0 0 67 1 39 0 58 43.0 31 232 -3 67 4 39 66 58 38 67 9 7 66 54 11 -0.32 - 22 0 0 67 13 30 0 58 29.9 31 232 -3 67 16 30 67 10 31 67 20 55 67 6 5 -0.32 - 21 0 0 67 24 55 0 58 17.1 30 233 -3 67 27 53 67 21 57 67 32 17 67 17 33 -0.32 - 20 0 0 67 35 53 0 58 4.7 30 234 -2 67 38 50 67 32 56 67 43 12 67 28 34 -0.32 - 19 0 0 67 46 25 0 57 52.5 30 235 -2 67 49 22 67 43 30 67 53 42 67 39 9 -0.32 - 18 0 0 67 56 33 0 57 40.6 29 236 -2 67 59 28 67 53 38 68 3 47 67 49 19 -0.32 - 17 0 0 68 6 16 0 57 29.0 29 237 -2 68 9 10 68 3 22 68 13 28 67 59 4 -0.32 - 16 0 0 68 15 35 0 57 17.7 29 238 -2 68 18 28 68 12 42 68 22 45 68 8 26 -0.31 - 15 0 0 68 24 31 0 57 6.7 28 239 -2 68 27 23 68 21 39 68 31 38 68 17 24 -0.31 - 14 0 0 68 33 3 0 56 55.9 28 240 -1 68 35 55 68 30 12 68 40 8 68 25 59 -0.31 - 13 0 0 68 41 14 0 56 45.3 27 241 -1 68 44 4 68 38 23 68 48 16 68 34 11 -0.31 - 12 0 0 68 49 2 0 56 35.0 27 242 -1 68 51 51 68 46 12 68 56 2 68 42 1 -0.31 - 11 0 0 68 56 28 0 56 24.9 27 243 -1 68 59 17 68 53 39 69 3 27 68 49 30 -0.31 - 10 0 0 69 3 33 0 56 15.1 26 243 -1 69 6 21 69 0 46 69 10 30 68 56 37 -0.31 - 9 0 0 69 10 18 0 56 5.4 26 244 -1 69 13 5 69 7 31 69 17 13 69 3 23 -0.31 - 8 0 0 69 16 42 0 55 55.9 26 245 -1 69 19 28 69 13 55 69 23 35 69 9 49 -0.31 - 7 0 0 69 22 46 0 55 46.7 25 246 0 69 25 31 69 20 0 69 29 37 69 15 54 -0.31 - 6 0 0 69 28 30 0 55 37.6 25 247 0 69 31 15 69 25 45 69 35 19 69 21 40 -0.30 - 5 0 0 69 33 54 0 55 28.7 25 248 0 69 36 39 69 31 10 69 40 42 69 27 6 -0.30 - 4 0 0 69 38 59 0 55 20.0 24 249 0 69 41 43 69 36 16 69 45 46 69 32 13 -0.30 - 3 0 0 69 43 46 0 55 11.5 24 250 0 69 46 29 69 41 3 69 50 31 69 37 1 -0.30 - 2 0 0 69 48 14 0 55 3.1 24 251 0 69 50 56 69 45 31 69 54 58 69 41 30 -0.30 - 1 0 0 69 52 23 0 54 54.9 23 252 0 69 55 5 69 49 41 69 59 6 69 45 40 -0.30 0 0 0 69 56 14 0 54 46.8 23 253 1 69 58 56 69 53 32 70 2 56 69 49 32 -0.30 1 0 0 69 59 47 0 54 38.9 23 254 1 70 2 28 69 57 5 70 6 27 69 53 6 -0.30 2 0 0 70 3 2 0 54 31.1 22 255 1 70 5 43 70 0 21 70 9 42 69 56 23 -0.30 3 0 0 70 5 59 0 54 23.5 22 255 1 70 8 40 70 3 19 70 12 38 69 59 21 -0.30 4 0 0 70 8 39 0 54 16.0 22 256 1 70 11 20 70 5 59 70 15 17 70 2 2 -0.29 5 0 0 70 11 2 0 54 8.7 21 257 1 70 13 42 70 8 22 70 17 39 70 4 25 -0.29 6 0 0 70 13 7 0 54 1.4 21 258 1 70 15 47 70 10 27 70 19 44 70 6 31 -0.29 7 0 0 70 14 55 0 53 54.3 21 259 1 70 17 35 70 12 16 70 21 31 70 8 19 -0.29 8 0 0 70 16 26 0 53 47.4 20 260 2 70 19 5 70 13 47 70 23 1 70 9 51 -0.29 9 0 0 70 17 40 0 53 40.5 20 261 2 70 20 19 70 15 1 70 24 15 70 11 5 -0.29 10 0 0 70 18 37 0 53 33.8 20 262 2 70 21 16 70 15 58 70 25 11 70 12 2 -0.29 11 0 0 70 19 17 0 53 27.1 19 263 2 70 21 56 70 16 38 70 25 51 70 12 43 -0.29 12 0 0 70 19 40 0 53 20.6 19 264 2 70 22 18 70 17 1 70 26 14 70 13 6 -0.29 13 0 0 70 19 46 0 53 14.2 19 265 2 70 22 24 70 17 7 70 26 20 70 13 12 -0.29 14 0 0 70 19 35 0 53 7.9 18 266 2 70 22 13 70 16 56 70 26 9 70 13 1 -0.29 15 0 0 70 19 7 0 53 1.6 18 267 3 70 21 45 70 16 28 70 25 41 70 12 33 -0.28 16 0 0 70 18 22 0 52 55.5 18 267 3 70 21 0 70 15 43 70 24 56 70 11 48 -0.28 17 0 0 70 17 20 0 52 49.5 17 268 3 70 19 58 70 14 41 70 23 54 70 10 46 -0.28 18 0 0 70 16 0 0 52 43.6 17 269 3 70 18 39 70 13 21 70 22 35 70 9 26 -0.28 19 0 0 70 14 24 0 52 37.8 17 270 3 70 17 3 70 11 45 70 20 58 70 7 49 -0.28 20 0 0 70 12 30 0 52 32.0 16 271 3 70 15 9 70 9 51 70 19 5 70 5 55 -0.28 21 0 0 70 10 18 0 52 26.4 16 272 3 70 12 57 70 7 39 70 16 54 70 3 43 -0.28 22 0 0 70 7 49 0 52 20.9 16 273 4 70 10 28 70 5 9 70 14 25 70 1 13 -0.28 23 0 0 70 5 1 0 52 15.4 15 274 4 70 7 41 70 2 22 70 11 38 69 58 25 -0.28 24 0 0 70 1 56 0 52 10.0 15 275 4 70 4 36 69 59 16 70 8 34 69 55 19 -0.28 25 0 0 69 58 33 0 52 4.8 15 276 4 70 1 13 69 55 52 70 5 11 69 51 54 -0.28 26 0 0 69 54 50 0 51 59.6 14 277 4 69 57 31 69 52 10 70 1 30 69 48 11 -0.28 27 0 0 69 50 49 0 51 54.5 14 278 4 69 53 31 69 48 8 69 57 30 69 44 10 -0.27 28 0 0 69 46 29 0 51 49.5 14 279 5 69 49 11 69 43 48 69 53 11 69 39 48 -0.27 29 0 0 69 41 50 0 51 44.5 13 279 5 69 44 32 69 39 8 69 48 32 69 35 8 -0.27 30 0 0 69 36 51 0 51 39.7 13 280 5 69 39 34 69 34 8 69 43 35 69 30 8 -0.27 31 0 0 69 31 32 0 51 35.0 13 281 5 69 34 15 69 28 49 69 38 17 69 24 47 -0.27 32 0 0 69 25 52 0 51 30.3 12 282 5 69 28 36 69 23 9 69 32 39 69 19 6 -0.27 33 0 0 69 19 52 0 51 25.7 12 283 5 69 22 36 69 17 8 69 26 40 69 13 4 -0.27 34 0 0 69 13 30 0 51 21.3 11 284 5 69 16 15 69 10 45 69 20 20 69 6 41 -0.27 35 0 0 69 6 47 0 51 16.9 11 285 6 69 9 33 69 4 1 69 13 38 68 59 56 -0.27 36 0 0 68 59 42 0 51 12.6 11 286 6 69 2 28 68 56 55 69 6 34 68 52 49 -0.27 37 0 0 68 52 13 0 51 8.4 10 287 6 68 55 1 68 49 26 68 59 8 68 45 19 -0.27 38 0 0 68 44 22 0 51 4.3 10 288 6 68 47 10 68 41 34 68 51 19 68 37 26 -0.27 39 0 0 68 36 7 0 51 0.4 10 289 6 68 38 56 68 33 18 68 43 6 68 29 8 -0.27 40 0 0 68 27 27 0 50 56.5 9 290 6 68 30 17 68 24 38 68 34 28 68 20 27 -0.27 41 0 0 68 18 23 0 50 52.8 9 290 7 68 21 13 68 15 32 68 25 26 68 11 20 -0.26 42 0 0 68 8 52 0 50 49.1 8 291 7 68 11 44 68 6 1 68 15 58 68 1 47 -0.26 43 0 0 67 58 56 0 50 45.6 8 292 7 68 1 48 67 56 3 68 6 4 67 51 48 -0.26 44 0 0 67 48 32 0 50 42.2 8 293 7 67 51 25 67 45 38 67 55 42 67 41 21 -0.26 45 0 0 67 37 40 0 50 38.9 7 294 7 67 40 34 67 34 45 67 44 53 67 30 26 -0.26 46 0 0 67 26 19 0 50 35.8 7 295 8 67 29 14 67 23 23 67 33 35 67 19 2 -0.26 47 0 0 67 14 28 0 50 32.8 6 296 8 67 17 25 67 11 31 67 21 47 67 7 9 -0.27 48 0 0 67 2 6 0 50 30.0 6 297 8 67 5 5 66 59 8 67 9 29 66 54 44 -0.27 49 0 0 66 49 13 0 50 27.3 5 298 8 66 52 13 66 46 13 66 56 39 66 41 48 -0.27 50 0 0 66 35 47 0 50 24.8 5 299 8 66 38 48 66 32 46 66 43 16 66 28 18 -0.27 51 0 0 66 21 47 0 50 22.4 4 300 9 66 24 49 66 18 44 66 29 19 66 14 15 -0.27 52 0 0 66 7 12 0 50 20.3 4 300 9 66 10 15 66 4 8 66 14 48 65 59 36 -0.27 53 0 0 65 52 0 0 50 18.3 4 301 9 65 55 5 65 48 55 65 59 40 65 44 20 -0.28 54 0 0 65 36 10 0 50 16.6 3 302 9 65 39 17 65 33 4 65 43 54 65 28 27 -0.29 55 0 0 65 19 42 0 50 15.0 3 303 10 65 22 50 65 16 33 65 27 30 65 11 54 -0.30 56 0 0 65 2 33 0 50 13.8 2 304 10 65 5 43 64 59 23 65 10 25 64 54 41 -0.31 57 0 0 64 44 41 0 50 12.7 2 305 10 64 47 53 64 41 29 64 52 38 64 36 45 -0.34 58 0 0 64 26 6 0 50 12.0 1 306 10 64 29 20 64 22 52 64 34 7 64 18 5 -0.41 59 0 0 64 6 45 0 50 11.5 0 307 11 64 10 1 64 3 29 64 14 51 63 58 39 -0.62 Uncertainty in time = +/- 4 secs Prediction of 2023 May 14.2 Data for the target star ------------------------ * name: TYC 1445-01950-1 * constellation : Coma Berenices * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 12 23 34.5498 DE: +15 49 46.292 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 12 23 34.5498 DE: +15 49 46.292 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 9.9 * B mag [mag]: 10.8 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1627) Ivar asteroid class: approx. diameter [km]: 9 approx. diameter ["]: 0.017 distance from Earth [AU]: 0.76880 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#1203 date of fit: 2023 May 13 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): 0.015", 0.012", 11.731° remarks: * orbital elements for (1627)Ivar : Mean anomaly = 316.9534690458 deg Arg. of pericenter = 167.8076413286 deg Long. of node = 133.1164756186 deg Inclination = 8.4504261067 deg Eccentricity = 0.3964472809 Semimajor axis = 1.8636044748 AU Perihelion dist = 1.1247835480 AU Mag: H = 12.74, G = 0.60 Epoch of elements : MJD 60085.07187083 TDT (2023 May 21.0719) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#12032023May13,4.96,2023,5,21,1.729396,-0.215116,0.161321,-0.645744,-0.861049,0.003101,-0.002067,0.000000,0.000000 -78.2004,15.7011,153.21,20.10,False TYC 1445-01950-1,12.39293053,15.8295253,10.80,9.90,9.41,0.1,0,,12.41273028,15.7010990,4.08,4.11,0,0,0 1627,Ivar,13.95,9.5,0.7688,0,0,-0.509,-9.87,,0.8,0 0,316.5382,2023,5,20,167.8076,133.1165,8.4504,0.39645,1.86360,1.12478,12.74,5.0,0.60 1.741,0.0153,0.0120,12,0.0127,Known errors,-1.00,-1,-1,-1 20230521_1950-1,60078.16 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 May 14, 03:56 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org