IOTA/IOTA-ES occultation update for (2891) McGetchin / TYC 6907-01512-1 event on 2024 Oct 14, 19:00 UT Visible from Summary ------- On 2024 Oct 14 UT, the 36.651 km diameter asteroid (2891) McGetchin will occult a 11.5 mag star in the constellation Capricornus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.10 mag to 16.58 mag (the magnitude of the asteroid) for at most 3.350 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: 2024 Oct 14, 18:56 - 2024 Oct 14, 19:05 * geocentric midpoint of event [JD]: 2460598.29215883 * magnitude of target star: 11.49 * magnitude drop [mag]: 5.10 * estimated maximum duration [s]: 3.350 * Moon: 90 % sunlit, 41° distance * Sun: 101° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 83 * 1 sigma uncertainty interval [path widths]: +/- 0.22 * 1 sigma uncertainty interval [seconds]: +/- 4.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.025, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.025", 0.002", 87°) * approx speed of asteroid's shadow [km/s]: 10.9324 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6907-01512-1 by 2891 McGetchin on 2024 Oct 14 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 - 62 0 0 46 50 35 18 56 25.8 0 127 21 46 23 10 47 18 35 46 11 10 .. .. .. .... - 61 0 0 46 20 24 18 56 26.0 1 128 21 45 53 18 46 48 3 45 41 27 47 0 30 -1.01 - 60 0 0 45 51 2 18 56 26.5 2 129 21 45 24 15 46 18 21 45 12 32 46 30 38 -1.42 - 59 0 0 45 22 29 18 56 27.4 3 129 21 44 56 0 45 49 29 44 44 24 46 1 37 -1.60 - 58 0 0 44 54 45 18 56 28.5 4 130 20 44 28 33 45 21 27 44 17 5 45 33 27 -1.69 - 57 0 0 44 27 51 18 56 29.9 5 131 20 44 1 56 44 54 16 43 50 34 45 6 8 -1.75 - 56 0 0 44 1 47 18 56 31.5 5 131 20 43 36 7 44 27 56 43 24 52 44 39 40 -1.79 - 55 0 0 43 36 34 18 56 33.5 6 132 19 43 11 8 44 2 27 42 59 59 44 14 4 -1.82 - 54 0 0 43 12 10 18 56 35.7 7 133 19 42 46 58 43 37 48 42 35 55 43 49 19 -1.85 - 53 0 0 42 48 37 18 56 38.2 8 134 19 42 23 38 43 14 1 42 12 41 43 25 26 -1.87 - 52 0 0 42 25 55 18 56 41.0 9 134 18 42 1 9 42 51 6 41 50 17 43 2 24 -1.88 - 51 0 0 42 4 4 18 56 44.0 9 135 18 41 39 29 42 29 2 41 28 43 42 40 15 -1.90 - 50 0 0 41 43 4 18 56 47.2 10 136 17 41 18 40 42 7 50 41 7 59 42 18 58 -1.91 - 49 0 0 41 22 55 18 56 50.8 11 136 17 40 58 42 41 47 30 40 48 5 41 58 33 -1.92 - 48 0 0 41 3 38 18 56 54.5 12 137 16 40 39 35 41 28 3 40 29 2 41 39 0 -1.93 - 47 0 0 40 45 12 18 56 58.5 13 138 16 40 21 19 41 9 27 40 10 50 41 20 20 -1.94 - 46 0 0 40 27 38 18 57 2.8 13 139 15 40 3 54 40 51 44 39 53 29 41 2 32 -1.95 - 45 0 0 40 10 56 18 57 7.3 14 139 14 39 47 20 40 34 53 39 36 59 40 45 38 -1.95 - 44 0 0 39 55 6 18 57 12.0 15 140 14 39 31 38 40 18 55 39 21 20 40 29 36 -1.96 - 43 0 0 39 40 8 18 57 16.9 15 141 13 39 16 47 40 3 50 39 6 32 40 14 27 -1.96 - 42 0 0 39 26 3 18 57 22.0 16 142 13 39 2 49 39 49 37 38 52 37 40 0 11 -1.97 - 41 0 0 39 12 50 18 57 27.4 17 143 12 38 49 42 39 36 17 38 39 33 39 46 48 -1.97 - 40 0 0 39 0 29 18 57 32.9 17 143 11 38 37 27 39 23 51 38 27 21 39 34 19 -1.98 - 39 0 0 38 49 1 18 57 38.6 18 144 11 38 26 5 39 12 17 38 16 0 39 22 43 -1.98 - 38 0 0 38 38 26 18 57 44.6 19 145 10 38 15 35 39 1 37 38 5 32 39 12 1 -1.99 - 37 0 0 38 28 44 18 57 50.7 19 146 9 38 5 57 38 51 51 37 55 57 39 2 12 -1.99 - 36 0 0 38 19 55 18 57 57.0 20 147 9 37 57 12 38 42 57 37 47 13 38 53 16 -2.00 - 35 0 0 38 11 59 18 58 3.4 20 147 8 37 49 19 38 34 57 37 39 22 38 45 15 -2.00 - 34 0 0 38 4 56 18 58 10.1 21 148 7 37 42 19 38 27 51 37 32 23 38 38 7 -2.00 - 33 0 0 37 58 46 18 58 16.9 21 149 6 37 36 12 38 21 39 37 26 18 38 31 54 -2.01 - 32 0 0 37 53 30 18 58 23.8 22 150 6 37 30 58 38 16 20 37 21 5 38 26 34 -2.01 - 31 0 0 37 49 7 18 58 30.9 22 151 5 37 26 37 38 11 55 37 16 44 38 22 8 -2.01 - 30 0 0 37 45 38 18 58 38.1 23 152 4 37 23 9 38 8 25 37 13 17 38 18 37 -2.01 - 29 0 0 37 43 2 18 58 45.5 23 153 3 37 20 35 38 5 48 37 10 43 38 16 0 -2.02 - 28 0 0 37 41 20 18 58 52.9 24 154 2 37 18 53 38 4 5 37 9 1 38 14 17 -2.02 - 27 0 0 37 40 32 18 59 0.5 24 155 2 37 18 5 38 3 17 37 8 13 38 13 29 -2.02 - 26 0 0 37 40 38 18 59 8.2 24 156 1 37 18 10 38 3 23 37 8 18 38 13 35 -2.02 - 25 0 0 37 41 37 18 59 16.0 25 157 0 37 19 9 38 4 23 37 9 17 38 14 35 -2.03 - 24 0 0 37 43 31 18 59 23.9 25 158 -1 37 21 1 38 6 18 37 11 9 38 16 31 -2.03 - 23 0 0 37 46 18 18 59 31.9 25 159 -2 37 23 47 38 9 7 37 13 54 38 19 21 -2.03 - 22 0 0 37 50 0 18 59 40.0 25 160 -2 37 27 27 38 12 51 37 17 32 38 23 5 -2.03 - 21 0 0 37 54 35 18 59 48.1 26 161 -3 37 32 0 38 17 29 37 22 4 38 27 45 -2.03 - 20 0 0 38 0 5 18 59 56.4 26 162 -4 37 37 27 38 23 2 37 27 30 38 33 19 -2.03 - 19 0 0 38 6 29 19 0 4.6 26 163 -5 37 43 47 38 29 30 37 33 49 38 39 48 -2.03 - 18 0 0 38 13 47 19 0 12.9 26 164 -6 37 51 2 38 36 52 37 41 2 38 47 12 -2.04 - 17 0 0 38 22 0 19 0 21.3 26 165 -7 37 59 10 38 45 9 37 49 9 38 55 31 -2.04 - 16 0 0 38 31 7 19 0 29.7 26 166 -7 38 8 13 38 54 21 37 58 9 39 4 46 -2.04 - 15 0 0 38 41 8 19 0 38.1 26 167 -8 38 18 9 39 4 28 38 8 3 39 14 55 -2.04 - 14 0 0 38 52 4 19 0 46.5 26 168 -9 38 28 59 39 15 29 38 18 50 39 25 59 -2.04 - 13 0 0 39 3 54 19 0 55.0 26 169 -10 38 40 43 39 27 26 38 30 32 39 37 59 -2.04 - 12 0 0 39 16 39 19 1 3.4 26 170 -11 38 53 21 39 40 18 38 43 7 39 50 54 -2.04 - 11 0 0 39 30 19 19 1 11.9 26 171 -11 39 6 53 39 54 5 38 56 36 40 4 44 -2.04 - 10 0 0 39 44 52 19 1 20.3 26 172 -12 39 21 19 40 8 47 39 10 59 40 19 30 -2.04 - 9 0 0 40 0 20 19 1 28.7 26 173 -13 39 36 39 40 24 23 39 26 15 40 35 10 -2.04 - 8 0 0 40 16 43 19 1 37.0 25 174 -14 39 52 53 40 40 55 39 42 25 40 51 46 -2.04 - 7 0 0 40 34 0 19 1 45.3 25 175 -15 40 10 0 40 58 22 39 59 29 41 9 17 -2.04 - 6 0 0 40 52 11 19 1 53.6 25 176 -15 40 28 2 41 16 43 40 17 26 41 27 44 -2.04 - 5 0 0 41 11 17 19 2 1.8 25 177 -16 40 46 57 41 36 0 40 36 17 41 47 6 -2.04 - 4 0 0 41 31 18 19 2 9.9 24 179 -17 41 6 47 41 56 12 40 56 1 42 7 23 -2.04 - 3 0 0 41 52 12 19 2 18.0 24 180 -18 41 27 29 42 17 19 41 16 39 42 28 36 -2.04 - 2 0 0 42 14 1 19 2 25.9 24 181 -18 41 49 5 42 39 21 41 38 10 42 50 44 -2.04 - 1 0 0 42 36 43 19 2 33.8 23 182 -19 42 11 35 43 2 17 42 0 34 43 13 46 -2.04 0 0 0 43 0 20 19 2 41.6 23 183 -20 42 34 58 43 26 8 42 23 50 43 37 44 -2.04 1 0 0 43 24 50 19 2 49.2 22 184 -21 42 59 13 43 50 54 42 48 0 44 2 37 -2.04 2 0 0 43 50 14 19 2 56.7 22 185 -21 43 24 22 44 16 34 43 13 2 44 28 24 -2.04 3 0 0 44 16 31 19 3 4.1 21 186 -22 43 50 23 44 43 8 43 38 57 44 55 6 -2.04 4 0 0 44 43 42 19 3 11.3 21 187 -23 44 17 17 45 10 37 44 5 43 45 22 44 -2.04 5 0 0 45 11 46 19 3 18.3 20 188 -23 44 45 3 45 39 0 44 33 22 45 51 15 -2.04 6 0 0 45 40 43 19 3 25.2 20 189 -24 45 13 41 46 8 17 45 1 52 46 20 41 -2.04 7 0 0 46 10 33 19 3 32.0 19 190 -24 45 43 11 46 38 27 45 31 13 46 51 1 -2.04 8 0 0 46 41 15 19 3 38.5 19 191 -25 46 13 33 47 9 32 46 1 26 47 22 16 -2.04 9 0 0 47 12 49 19 3 44.9 18 191 -25 46 44 45 47 41 29 46 32 30 47 54 24 -2.04 10 0 0 47 45 15 19 3 51.0 17 192 -26 47 16 49 48 14 20 47 4 23 48 27 26 -2.04 11 0 0 48 18 33 19 3 56.9 17 193 -26 47 49 42 48 48 3 47 37 7 49 1 21 -2.04 12 0 0 48 52 42 19 4 2.6 16 194 -27 48 23 26 49 22 39 48 10 40 49 36 10 -2.04 13 0 0 49 27 42 19 4 8.1 15 195 -27 48 57 59 49 58 8 48 45 2 50 11 52 -2.04 14 0 0 50 3 33 19 4 13.3 14 196 -28 49 33 22 50 34 28 49 20 12 50 48 27 -2.04 15 0 0 50 40 13 19 4 18.3 14 197 -28 50 9 33 51 11 41 49 56 11 51 25 54 -2.04 16 0 0 51 17 44 19 4 23.0 13 198 -28 50 46 32 51 49 45 50 32 58 52 4 14 -2.04 17 0 0 51 56 3 19 4 27.5 12 199 -29 51 24 20 52 28 40 51 10 31 52 43 26 -2.05 18 0 0 52 35 12 19 4 31.6 11 200 -29 52 2 54 53 8 26 51 48 51 53 23 30 -2.05 19 0 0 53 15 9 19 4 35.5 10 200 -29 52 42 14 53 49 3 52 27 56 54 4 25 -2.05 20 0 0 53 55 54 19 4 39.1 10 201 -29 53 22 21 54 30 29 53 7 46 54 46 12 -2.06 21 0 0 54 37 26 19 4 42.4 9 202 -30 54 3 12 55 12 46 53 48 21 55 28 50 -2.06 22 0 0 55 19 45 19 4 45.4 8 203 -30 54 44 48 55 55 53 54 29 39 56 12 19 -2.07 23 0 0 56 2 50 19 4 48.1 7 204 -30 55 27 8 56 39 48 55 11 40 56 56 39 -2.08 24 0 0 56 46 41 19 4 50.4 6 205 -30 56 10 11 57 24 33 55 54 23 57 41 50 -2.09 25 0 0 57 31 17 19 4 52.4 5 206 -30 56 53 56 58 10 7 56 37 47 58 27 52 -2.11 26 0 0 58 16 38 19 4 54.1 4 207 -30 57 38 22 58 56 29 57 21 51 59 14 44 -2.14 27 0 0 59 2 43 19 4 55.5 3 207 -30 58 23 29 59 43 40 58 6 35 60 2 27 -2.18 28 0 0 59 49 32 19 4 56.5 2 208 -30 59 9 16 60 31 40 58 51 57 60 51 1 -2.25 29 0 0 60 37 4 19 4 57.1 1 209 -30 59 55 42 61 20 28 59 37 56 61 40 27 -2.41 30 0 0 61 25 18 19 4 57.4 0 210 -29 60 42 46 .. .. .. 60 24 31 .. .. .. -3.29 31 0 0 .. .. .... .. .. .. .. .. .. 61 30 26 .. .. .. 61 11 42 .. .. .. .... Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 6907-01512-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 25 49.1743 DE: -24 15 44.558 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 25 49.1741 DE: -24 15 44.559 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.5 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2891) McGetchin asteroid class: approx. diameter [km]: 37 approx. diameter ["]: 0.019 distance from Earth [AU]: 2.63020 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#56 date of fit: 2023 Apr 24 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", 0.002", 87.349° remarks: * orbital elements for (2891)McGetchin : Mean anomaly = 326.1588469630 deg Arg. of pericenter = 251.7511575621 deg Long. of node = 114.7210667846 deg Inclination = 9.3015985606 deg Eccentricity = 0.1383362610 Semimajor axis = 3.3514397298 AU Perihelion dist = 2.8878140885 AU Mag: H = 11.14, G = 0.15 Epoch of elements : MJD 60597.79215825 TDT (2024 Oct 14.7922) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#562023Apr24,3.35,2024,10,14,19.011812,-0.166400,0.880703,6.062430,1.150128,0.005506,0.001457,0.000000,0.000000 -2.1673,-24.1826,-108.72,-8.54,False TYC 6907-01512-1,20.43032621,-24.2623773,11.81,11.49,11.32,0.0,0,,20.45489656,-24.1825547,5.10,4.82,0,0,0 2891,McGetchin,16.58,36.651,2.6302,0,0,1.482,3.85,,2.0,0 0,326.0316,2024,10,14,251.7512,114.7211,9.3016,0.13834,3.35144,2.88781,11.13,5.0,0.15 1.222,0.0250,0.0024,87,0.0043,Known errors,0.97,0,-1,-1 20241014_1512-1,60140.63 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:13 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org