IOTA/IOTA-ES occultation update for (205) Martha / TYC 0724-02578-1 event on 2023 Nov 22, 09:54 UT Visible from SE USA, Mexico Summary ------- On 2023 Nov 22 UT, the 81.3 km diameter asteroid (205) Martha will occult a 11.3 mag star in the constellation Orion for observers along a path across SE USA, Mexico. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.48 mag to 13.66 mag (the magnitude of the asteroid) for at most 8.380 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 Nov 22, 09:43 - 2023 Nov 22, 10:06 * geocentric midpoint of event [JD]: 2460270.91316308 * magnitude of target star: 11.30 * magnitude drop [mag]: 2.48 * estimated maximum duration [s]: 8.380 * Moon: 72 % sunlit, 93° distance * Sun: 148° distance * rough path description: SE USA, Mexico The occultation path -------------------- * approximate projected width [km]: 81 * 1 sigma uncertainty interval [path widths]: +/- 0.13 * 1 sigma uncertainty interval [seconds]: +/- 1.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.000", 95°) * approx speed of asteroid's shadow [km/s]: 9.6995 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0724-02578-1 by 205 Martha on 2023 Nov 22 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 153 0 0 -25 38 24 10 5 53.8 0 77 -22 -25 15 47 -26 1 0 -25 9 50 -26 6 57 .... 154 0 0 -25 25 33 10 5 53.7 1 77 -23 -25 2 54 -25 48 12 -24 56 56 -25 54 10 -0.09 155 0 0 -25 12 14 10 5 53.4 2 76 -24 -24 49 32 -25 34 55 -24 43 34 -25 40 54 -0.06 156 0 0 -24 58 26 10 5 52.9 3 76 -24 -24 35 41 -25 21 10 -24 29 42 -25 27 9 -0.05 157 0 0 -24 44 9 10 5 52.3 4 75 -25 -24 21 21 -25 6 56 -24 15 21 -25 12 55 -0.05 158 0 0 -24 29 23 10 5 51.5 5 75 -26 -24 6 33 -24 52 13 -24 0 32 -24 58 13 -0.04 159 0 0 -24 14 9 10 5 50.5 6 74 -27 -23 51 15 -24 37 1 -23 45 14 -24 43 3 -0.04 160 0 0 -23 58 26 10 5 49.3 7 74 -28 -23 35 29 -24 21 21 -23 29 27 -24 27 23 -0.04 161 0 0 -23 42 14 10 5 47.9 8 74 -29 -23 19 15 -24 5 13 -23 13 12 -24 11 15 -0.04 162 0 0 -23 25 34 10 5 46.4 9 73 -30 -23 2 32 -23 48 36 -22 56 28 -23 54 39 -0.04 163 0 0 -23 8 25 10 5 44.7 10 73 -30 -22 45 20 -23 31 30 -22 39 15 -23 37 34 -0.04 164 0 0 -22 50 48 10 5 42.7 11 72 -31 -22 27 40 -23 13 56 -22 21 34 -23 20 1 -0.03 165 0 0 -22 32 42 10 5 40.6 12 72 -32 -22 9 31 -22 55 54 -22 3 25 -23 2 0 -0.03 166 0 0 -22 14 9 10 5 38.3 12 72 -33 -21 50 54 -22 37 23 -21 44 47 -22 43 30 -0.03 167 0 0 -21 55 7 10 5 35.8 13 71 -34 -21 31 49 -22 18 25 -21 25 41 -22 24 33 -0.03 168 0 0 -21 35 37 10 5 33.1 14 71 -35 -21 12 16 -21 58 58 -21 6 7 -22 5 7 -0.03 169 0 0 -21 15 39 10 5 30.2 15 71 -36 -20 52 15 -21 39 4 -20 46 5 -21 45 13 -0.03 170 0 0 -20 55 14 10 5 27.2 16 70 -37 -20 31 46 -21 18 42 -20 25 35 -21 24 52 -0.03 171 0 0 -20 34 21 10 5 23.9 17 70 -37 -20 10 49 -20 57 52 -20 4 38 -21 4 3 -0.03 172 0 0 -20 13 0 10 5 20.4 18 70 -38 -19 49 25 -20 36 35 -19 43 13 -20 42 47 -0.03 173 0 0 -19 51 12 10 5 16.7 19 69 -39 -19 27 34 -20 14 50 -19 21 21 -20 21 4 -0.03 174 0 0 -19 28 58 10 5 12.8 20 69 -40 -19 5 16 -19 52 39 -18 59 2 -19 58 53 -0.03 175 0 0 -19 6 16 10 5 8.8 21 69 -41 -18 42 31 -19 30 1 -18 36 15 -19 36 16 -0.03 176 0 0 -18 43 7 10 5 4.5 22 68 -42 -18 19 19 -19 6 56 -18 13 3 -19 13 12 -0.03 177 0 0 -18 19 33 10 5 0.0 23 68 -43 -17 55 41 -18 43 25 -17 49 24 -18 49 41 -0.03 178 0 0 -17 55 32 10 4 55.3 24 68 -44 -17 31 37 -18 19 27 -17 25 19 -18 25 45 -0.03 179 0 0 -17 31 6 10 4 50.3 25 67 -44 -17 7 7 -17 55 4 -17 0 48 -18 1 23 -0.03 -180 0 0 -17 6 14 10 4 45.2 26 67 -45 -16 42 11 -17 30 16 -16 35 52 -17 36 35 -0.03 -179 0 0 -16 40 56 10 4 39.9 27 67 -46 -16 16 51 -17 5 2 -16 10 30 -17 11 22 -0.03 -178 0 0 -16 15 14 10 4 34.4 28 67 -47 -15 51 5 -16 39 23 -15 44 44 -16 45 44 -0.03 -177 0 0 -15 49 8 10 4 28.6 30 66 -48 -15 24 56 -16 13 20 -15 18 34 -16 19 42 -0.03 -176 0 0 -15 22 38 10 4 22.7 31 66 -49 -14 58 22 -15 46 53 -14 51 59 -15 53 16 -0.03 -175 0 0 -14 55 43 10 4 16.5 32 66 -50 -14 31 25 -15 20 2 -14 25 1 -15 26 26 -0.03 -174 0 0 -14 28 26 10 4 10.1 33 66 -51 -14 4 4 -14 52 48 -13 57 39 -14 59 12 -0.03 -173 0 0 -14 0 46 10 4 3.5 34 65 -51 -13 36 21 -14 25 11 -13 29 56 -14 31 36 -0.03 -172 0 0 -13 32 44 10 3 56.7 35 65 -52 -13 8 16 -13 57 12 -13 1 49 -14 3 38 -0.03 -171 0 0 -13 4 20 10 3 49.8 36 65 -53 -12 39 49 -13 28 51 -12 33 21 -13 35 18 -0.03 -170 0 0 -12 35 34 10 3 42.6 37 65 -54 -12 11 0 -13 0 8 -12 4 32 -13 6 36 -0.03 -169 0 0 -12 6 28 10 3 35.1 38 65 -55 -11 41 52 -12 31 5 -11 35 23 -12 37 34 -0.03 -168 0 0 -11 37 2 10 3 27.5 39 64 -56 -11 12 23 -12 1 42 -11 5 53 -12 8 11 -0.03 -167 0 0 -11 7 17 10 3 19.7 40 64 -56 -10 42 34 -11 31 59 -10 36 4 -11 38 29 -0.03 -166 0 0 -10 37 12 10 3 11.7 41 64 -57 -10 12 27 -11 1 57 -10 5 56 -11 8 28 -0.03 -165 0 0 -10 6 49 10 3 3.5 42 64 -58 - 9 42 1 -10 31 37 - 9 35 30 -10 38 8 -0.03 -164 0 0 - 9 36 9 10 2 55.1 43 64 -59 - 9 11 18 -10 0 59 - 9 4 46 -10 7 31 -0.03 -163 0 0 - 9 5 11 10 2 46.5 44 64 -60 - 8 40 19 - 9 30 4 - 8 33 46 - 9 36 36 -0.03 -162 0 0 - 8 33 57 10 2 37.8 45 64 -60 - 8 9 2 - 8 58 52 - 8 2 29 - 9 5 26 -0.03 -161 0 0 - 8 2 28 10 2 28.8 47 64 -61 - 7 37 31 - 8 27 25 - 7 30 57 - 8 33 59 -0.03 -160 0 0 - 7 30 44 10 2 19.6 48 64 -62 - 7 5 45 - 7 55 43 - 6 59 10 - 8 2 18 -0.03 -159 0 0 - 6 58 46 10 2 10.3 49 63 -63 - 6 33 44 - 7 23 47 - 6 27 9 - 7 30 22 -0.03 -158 0 0 - 6 26 34 10 2 0.8 50 63 -63 - 6 1 31 - 6 51 37 - 5 54 55 - 6 58 13 -0.03 -157 0 0 - 5 54 10 10 1 51.1 51 63 -64 - 5 29 5 - 6 19 15 - 5 22 29 - 6 25 51 -0.03 -156 0 0 - 5 21 34 10 1 41.3 52 63 -64 - 4 56 27 - 5 46 41 - 4 49 51 - 5 53 17 -0.03 -155 0 0 - 4 48 48 10 1 31.3 53 63 -65 - 4 23 39 - 5 13 56 - 4 17 2 - 5 20 33 -0.03 -154 0 0 - 4 15 51 10 1 21.1 54 63 -66 - 3 50 41 - 4 41 0 - 3 44 3 - 4 47 38 -0.03 -153 0 0 - 3 42 45 10 1 10.8 55 63 -66 - 3 17 33 - 4 7 56 - 3 10 56 - 4 14 33 -0.03 -152 0 0 - 3 9 30 10 1 0.3 56 63 -67 - 2 44 18 - 3 34 42 - 2 37 40 - 3 41 20 -0.03 -151 0 0 - 2 36 8 10 0 49.7 57 63 -67 - 2 10 55 - 3 1 22 - 2 4 16 - 3 8 0 -0.03 -150 0 0 - 2 2 40 10 0 39.0 59 63 -68 - 1 37 25 - 2 27 54 - 1 30 46 - 2 34 32 -0.03 -149 0 0 - 1 29 5 10 0 28.1 60 64 -68 - 1 3 50 - 1 54 20 - 0 57 11 - 2 0 59 -0.03 -148 0 0 - 0 55 26 10 0 17.1 61 64 -68 - 0 30 10 - 1 20 42 - 0 23 31 - 1 27 21 -0.03 -147 0 0 - 0 21 43 10 0 5.9 62 64 -69 0 3 34 - 0 46 59 0 10 13 - 0 53 38 -0.03 -146 0 0 0 12 4 9 59 54.7 63 64 -69 0 37 21 - 0 13 13 0 44 0 - 0 19 52 -0.03 -145 0 0 0 45 52 9 59 43.3 64 64 -69 1 11 10 0 20 35 1 17 50 0 13 56 -0.03 -144 0 0 1 19 42 9 59 31.9 65 64 -69 1 45 0 0 54 25 1 51 40 0 47 46 -0.03 -143 0 0 1 53 33 9 59 20.3 66 65 -69 2 18 51 1 28 15 2 25 30 1 21 36 -0.03 -142 0 0 2 27 23 9 59 8.7 67 65 -69 2 52 41 2 2 5 2 59 20 1 55 26 -0.03 -141 0 0 3 1 11 9 58 56.9 68 65 -69 3 26 29 2 35 54 3 33 9 2 29 14 -0.03 -140 0 0 3 34 57 9 58 45.1 70 66 -69 4 0 15 3 9 40 4 6 54 3 3 1 -0.03 -139 0 0 4 8 40 9 58 33.2 71 66 -69 4 33 58 3 43 24 4 40 37 3 36 45 -0.03 -138 0 0 4 42 19 9 58 21.3 72 66 -69 5 7 36 4 17 3 5 14 15 4 10 24 -0.03 -137 0 0 5 15 54 9 58 9.3 73 67 -68 5 41 10 4 50 38 5 47 49 4 43 59 -0.03 -136 0 0 5 49 22 9 57 57.2 74 67 -68 6 14 37 5 24 7 6 21 16 5 17 28 -0.03 -135 0 0 6 22 44 9 57 45.1 75 68 -68 6 47 58 5 57 30 6 54 37 5 50 51 -0.03 -134 0 0 6 55 58 9 57 33.0 76 69 -67 7 21 11 6 30 45 7 27 50 6 24 7 -0.03 -133 0 0 7 29 4 9 57 20.8 77 70 -67 7 54 16 7 3 52 8 0 54 6 57 14 -0.03 -132 0 0 8 2 1 9 57 8.6 78 71 -67 8 27 12 7 36 50 8 33 49 7 30 13 -0.04 -131 0 0 8 34 48 9 56 56.4 79 72 -66 8 59 57 8 9 38 9 6 35 8 3 1 -0.04 -130 0 0 9 7 24 9 56 44.1 80 73 -65 9 32 32 8 42 16 9 39 9 8 35 39 -0.04 -129 0 0 9 39 49 9 56 31.9 81 75 -65 10 4 55 9 14 42 10 11 32 9 8 6 -0.04 -128 0 0 10 12 1 9 56 19.6 82 78 -64 10 37 6 9 46 57 10 43 42 9 40 21 -0.04 -127 0 0 10 44 1 9 56 7.4 83 81 -64 11 9 4 10 18 58 11 15 39 10 12 23 -0.04 -126 0 0 11 15 46 9 55 55.2 84 84 -63 11 40 48 10 50 46 11 47 23 10 44 11 -0.04 -125 0 0 11 47 18 9 55 43.0 85 90 -62 12 12 17 11 22 19 12 18 52 11 15 45 -0.04 -124 0 0 12 18 34 9 55 30.8 86 98 -62 12 43 32 11 53 38 12 50 6 11 47 4 -0.04 -123 0 0 12 49 35 9 55 18.7 87 111 -61 13 14 30 12 24 40 13 21 4 12 18 7 -0.04 -122 0 0 13 20 19 9 55 6.5 87 131 -60 13 45 12 12 55 27 13 51 45 12 48 54 -0.04 -121 0 0 13 50 47 9 54 54.5 87 157 -60 14 15 37 13 25 57 14 22 10 13 19 25 -0.04 -120 0 0 14 20 57 9 54 42.4 87 181 -59 14 45 45 13 56 9 14 52 16 13 49 38 -0.04 -119 0 0 14 50 48 9 54 30.5 87 198 -58 15 15 34 14 26 3 15 22 5 14 19 32 -0.04 -118 0 0 15 20 21 9 54 18.6 86 208 -57 15 45 4 14 55 39 15 51 35 14 49 9 -0.04 -117 0 0 15 49 35 9 54 6.7 85 215 -56 16 14 15 15 24 55 16 20 45 15 18 26 -0.04 -116 0 0 16 18 29 9 53 54.9 84 220 -56 16 43 7 15 53 52 16 49 35 15 47 23 -0.04 -115 0 0 16 47 3 9 53 43.2 83 224 -55 17 11 37 16 22 28 17 18 6 16 16 0 -0.04 -114 0 0 17 15 16 9 53 31.5 82 226 -54 17 39 48 16 50 44 17 46 15 16 44 17 -0.04 -113 0 0 17 43 7 9 53 19.9 81 229 -53 18 7 37 17 18 39 18 14 3 17 12 12 -0.04 -112 0 0 18 10 38 9 53 8.4 80 230 -52 18 35 4 17 46 12 18 41 30 17 39 46 -0.04 -111 0 0 18 37 46 9 52 57.0 79 232 -52 19 2 9 18 13 23 19 8 35 18 6 59 -0.04 -110 0 0 19 4 32 9 52 45.7 78 233 -51 19 28 52 18 40 12 19 35 17 18 33 48 -0.04 -109 0 0 19 30 55 9 52 34.5 77 234 -50 19 55 12 19 6 39 20 1 36 19 0 15 -0.04 -108 0 0 19 56 56 9 52 23.4 76 235 -49 20 21 10 19 32 42 20 27 32 19 26 20 -0.04 -107 0 0 20 22 32 9 52 12.3 75 236 -48 20 46 43 19 58 22 20 53 5 19 52 0 -0.04 -106 0 0 20 47 46 9 52 1.4 74 237 -47 21 11 53 20 23 38 21 18 14 20 17 18 -0.04 -105 0 0 21 12 35 9 51 50.6 73 238 -47 21 36 39 20 48 31 21 42 59 20 42 11 -0.04 -104 0 0 21 37 0 9 51 39.8 72 239 -46 22 1 1 21 12 59 22 7 20 21 6 40 -0.04 -103 0 0 22 1 0 9 51 29.2 71 239 -45 22 24 58 21 37 3 22 31 17 21 30 44 -0.04 -102 0 0 22 24 36 9 51 18.7 70 240 -44 22 48 31 22 0 42 22 54 48 21 54 24 -0.04 -101 0 0 22 47 47 9 51 8.3 69 241 -43 23 11 38 22 23 56 23 17 55 22 17 39 -0.04 -100 0 0 23 10 33 9 50 58.0 68 241 -42 23 34 21 22 46 45 23 40 37 22 40 29 -0.04 - 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47 0 0 32 54 29 9 44 50.9 23 270 -1 33 16 30 32 32 29 33 22 18 32 26 41 -0.04 - 46 0 0 32 53 47 9 44 47.3 22 270 0 33 15 48 32 31 46 33 21 35 32 25 58 -0.04 - 45 0 0 32 52 37 9 44 43.9 21 271 1 33 14 39 32 30 36 33 20 26 32 24 49 -0.04 - 44 0 0 32 51 2 9 44 40.5 20 271 2 33 13 4 32 29 1 33 18 52 32 23 13 -0.04 - 43 0 0 32 49 1 9 44 37.3 19 272 2 33 11 3 32 26 59 33 16 51 32 21 11 -0.04 - 42 0 0 32 46 33 9 44 34.2 18 272 3 33 8 35 32 24 30 33 14 23 32 18 42 -0.04 - 41 0 0 32 43 38 9 44 31.3 18 273 4 33 5 42 32 21 35 33 11 30 32 15 47 -0.04 - 40 0 0 32 40 17 9 44 28.5 17 273 5 33 2 21 32 18 14 33 8 10 32 12 25 -0.04 - 39 0 0 32 36 30 9 44 25.8 16 274 5 32 58 35 32 14 25 33 4 24 32 8 37 -0.04 - 38 0 0 32 32 16 9 44 23.2 15 274 6 32 54 22 32 10 10 33 0 11 32 4 22 -0.04 - 37 0 0 32 27 35 9 44 20.8 14 275 7 32 49 42 32 5 29 32 55 31 31 59 39 -0.04 - 36 0 0 32 22 27 9 44 18.5 13 276 8 32 44 35 32 0 20 32 50 25 31 54 30 -0.04 - 35 0 0 32 16 53 9 44 16.3 12 276 8 32 39 2 31 54 44 32 44 52 31 48 54 -0.04 - 34 0 0 32 10 51 9 44 14.3 12 277 9 32 33 2 31 48 41 32 38 52 31 42 51 -0.04 - 33 0 0 32 4 22 9 44 12.4 11 277 10 32 26 35 31 42 11 32 32 25 31 36 20 -0.04 - 32 0 0 31 57 26 9 44 10.6 10 278 11 32 19 40 31 35 13 32 25 31 31 29 22 -0.04 - 31 0 0 31 50 3 9 44 9.0 9 278 12 32 12 18 31 27 48 32 18 10 31 21 57 -0.04 - 30 0 0 31 42 12 9 44 7.5 8 279 12 32 4 29 31 19 55 32 10 21 31 14 4 -0.04 - 29 0 0 31 33 54 9 44 6.1 7 279 13 31 56 12 31 11 35 32 2 5 31 5 43 -0.04 - 28 0 0 31 25 7 9 44 4.9 7 280 14 31 47 28 31 2 47 31 53 21 30 56 54 -0.04 - 27 0 0 31 15 53 9 44 3.9 6 280 15 31 38 16 30 53 30 31 44 9 30 47 37 -0.05 - 26 0 0 31 6 11 9 44 3.0 5 281 16 31 28 36 30 43 46 31 34 30 30 37 52 -0.05 - 25 0 0 30 56 1 9 44 2.2 4 281 16 31 18 28 30 33 34 31 24 23 30 27 39 -0.05 - 24 0 0 30 45 22 9 44 1.6 3 282 17 31 7 52 30 22 53 31 13 47 30 16 58 -0.06 - 23 0 0 30 34 15 9 44 1.1 2 282 18 30 56 47 30 11 43 31 2 43 30 5 48 -0.07 - 22 0 0 30 22 40 9 44 0.8 1 283 19 30 45 14 30 0 5 30 51 11 29 54 9 -0.10 - 21 0 0 30 10 35 9 44 0.6 0 283 19 30 33 13 29 47 58 30 39 10 29 42 1 -0.26 Uncertainty in time = +/- 2 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: TYC 0724-02578-1 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 57 37.6578 DE: +11 39 56.371 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 57 37.6579 DE: +11 39 56.370 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (205) Martha asteroid class: approx. diameter [km]: 81 approx. diameter ["]: 0.061 distance from Earth [AU]: 1.82850 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#65 date of fit: 2023 Oct 09 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", 0.000", 94.959° remarks: * orbital elements for (205)Martha : Mean anomaly = 52.1165087749 deg Arg. of pericenter = 172.1314019814 deg Long. of node = 211.7227579872 deg Inclination = 10.7079051896 deg Eccentricity = 0.0365321281 Semimajor axis = 2.7773368985 AU Perihelion dist = 2.6758748710 AU Mag: H = 9.49, G = 0.15 Epoch of elements : MJD 60270.41298611 TDT (2023 Nov 22.4130) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#652023Oct09,8.38,2023,11,22,9.915914,-0.018756,0.034411,-4.817403,-2.600883,-0.002897,0.001036,0.000001,0.000000 -120.1273,11.6695,27.77,-20.11,False TYC 0724-02578-1,5.96046050,11.6656586,0.00,11.30,0.00,0.0,0,,5.98289594,11.6695147,2.48,0.00,0,0,0 205,Martha,13.66,81.300,1.8285,0,0,-1.578,-12.51,,4.0,0 0,52.0286,2023,11,22,172.1314,211.7228,10.7079,0.03653,2.77734,2.67587,9.49,5.0,0.15 1.132,0.0147,0.0004,95,0.0147,Known errors,-1.00,0,-1,-1 20231122_2578-1,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:07 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org