IOTA/IOTA-ES occultation update for (506) Marion / TYC 2303-01454-1 event on 2023 Nov 05, 06:41 UT Visible from N Canada Summary ------- On 2023 Nov 05 UT, the 103.3 km diameter asteroid (506) Marion will occult a 12.2 mag star in the constellation Andromeda for observers along a path across N Canada. In the case of an occultation, the combined light of the asteroid and the star will drop by 1.33 mag to 13.12 mag (the magnitude of the asteroid) for at most 9.130 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: 100 * date and approx. time of event: 2023 Nov 05, 06:33 - 2023 Nov 05, 06:51 * geocentric midpoint of event [JD]: 2460253.77929383 * magnitude of target star: 12.17 * magnitude drop [mag]: 1.33 * estimated maximum duration [s]: 9.130 * Moon: 51 % sunlit, 95° distance * Sun: 153° distance * rough path description: N Canada The occultation path -------------------- * approximate projected width [km]: 108 * 1 sigma uncertainty interval [path widths]: +/- 0.01 * 1 sigma uncertainty interval [seconds]: +/- 1.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.012", 0.001", 60°) * approx speed of asteroid's shadow [km/s]: 11.3171 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2303-01454-1 by 506 Marion on 2023 Nov 5 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 0 0 0 .. .. .... .. .. .. .. .. .. - 8 39 29 .. .. .. - 8 38 41 .. .. .. .... 151 0 0 - 8 30 50 6 51 8.3 1 53 14 - 7 54 3 - 9 7 29 - 7 53 13 - 9 8 18 .... 152 0 0 - 7 44 43 6 51 7.9 2 53 13 - 7 7 40 - 8 21 36 - 7 6 50 - 8 22 26 -0.29 153 0 0 - 6 57 40 6 51 7.3 3 53 12 - 6 20 22 - 7 34 48 - 6 19 32 - 7 35 38 -0.29 154 0 0 - 6 9 42 6 51 6.4 5 52 10 - 5 32 9 - 6 47 5 - 5 31 19 - 6 47 55 -0.29 155 0 0 - 5 20 51 6 51 5.1 6 52 9 - 4 43 3 - 5 58 29 - 4 42 13 - 5 59 20 -0.29 156 0 0 - 4 31 7 6 51 3.6 7 52 8 - 3 53 4 - 5 9 0 - 3 52 13 - 5 9 51 -0.29 157 0 0 - 3 40 32 6 51 1.7 9 52 7 - 3 2 14 - 4 18 40 - 3 1 23 - 4 19 30 -0.29 158 0 0 - 2 49 6 6 50 59.6 10 52 6 - 2 10 33 - 3 27 28 - 2 9 42 - 3 28 20 -0.29 159 0 0 - 1 56 51 6 50 57.1 11 52 5 - 1 18 4 - 2 35 28 - 1 17 12 - 2 36 20 -0.29 160 0 0 - 1 3 49 6 50 54.3 13 52 3 - 0 24 47 - 1 42 40 - 0 23 55 - 1 43 32 -0.29 161 0 0 - 0 10 0 6 50 51.2 14 52 2 0 29 16 - 0 49 6 0 30 8 - 0 49 58 -0.29 162 0 0 0 44 32 6 50 47.7 15 52 1 1 24 2 0 5 12 1 24 55 0 4 20 -0.29 163 0 0 1 39 47 6 50 43.9 17 52 0 2 19 31 1 0 13 2 20 24 0 59 20 -0.29 164 0 0 2 35 41 6 50 39.8 18 52 -1 3 15 40 1 55 54 3 16 33 1 55 1 -0.29 165 0 0 3 32 14 6 50 35.4 19 52 -3 4 12 26 2 52 14 4 13 20 2 51 21 -0.29 166 0 0 4 29 23 6 50 30.6 21 53 -4 5 9 48 3 49 10 5 10 42 3 48 16 -0.29 167 0 0 5 27 6 6 50 25.5 22 53 -5 6 7 43 4 46 40 6 8 37 4 45 46 -0.29 168 0 0 6 25 19 6 50 20.0 23 53 -6 7 6 9 5 44 41 7 7 3 5 43 47 -0.29 169 0 0 7 24 0 6 50 14.3 25 53 -7 8 5 2 6 43 11 8 5 57 6 42 16 -0.29 170 0 0 8 23 8 6 50 8.2 26 53 -9 9 4 21 7 42 7 9 5 16 7 41 12 -0.29 171 0 0 9 22 38 6 50 1.8 27 54 -10 10 4 2 8 41 26 10 4 57 8 40 31 -0.29 172 0 0 10 22 27 6 49 55.1 29 54 -11 11 4 2 9 41 6 11 4 58 9 40 10 -0.29 173 0 0 11 22 34 6 49 48.1 30 54 -12 12 4 19 10 41 3 12 5 15 10 40 7 -0.29 174 0 0 12 22 55 6 49 40.9 31 55 -13 13 4 49 11 41 14 13 5 45 11 40 18 -0.29 175 0 0 13 23 26 6 49 33.3 33 55 -14 14 5 29 12 41 37 14 6 25 12 40 41 -0.29 176 0 0 14 24 5 6 49 25.5 34 55 -16 15 6 15 13 42 7 15 7 12 13 41 12 -0.29 177 0 0 15 24 48 6 49 17.4 35 56 -17 16 7 6 14 42 43 16 8 3 14 41 47 -0.29 178 0 0 16 25 32 6 49 9.0 37 56 -18 17 7 57 15 43 21 17 8 54 15 42 25 -0.29 179 0 0 17 26 14 6 49 0.4 38 57 -19 18 8 45 16 43 57 18 9 42 16 43 0 -0.29 -180 0 0 18 26 51 6 48 51.6 39 57 -20 19 9 27 17 44 28 19 10 24 17 43 32 -0.29 -179 0 0 19 27 19 6 48 42.6 41 58 -21 20 10 0 18 44 52 20 10 57 18 43 55 -0.29 -178 0 0 20 27 35 6 48 33.4 42 59 -22 21 10 20 19 45 4 21 11 18 19 44 7 -0.30 -177 0 0 21 27 36 6 48 24.0 43 59 -23 22 10 25 20 45 2 22 11 22 20 44 6 -0.30 -176 0 0 22 27 20 6 48 14.5 45 60 -24 23 10 10 21 44 43 23 11 8 21 43 46 -0.30 -175 0 0 23 26 42 6 48 4.8 46 61 -25 24 9 34 22 44 4 24 10 32 22 43 7 -0.30 -174 0 0 24 25 40 6 47 54.9 47 62 -26 25 8 33 23 43 1 25 9 31 23 42 4 -0.30 -173 0 0 25 24 11 6 47 45.0 48 63 -27 26 7 5 24 41 32 26 8 2 24 40 35 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51 17 58 45 58 -0.32 - 45 0 0 59 4 33 6 35 14.0 37 281 -30 59 36 43 58 32 29 59 37 26 58 31 46 -0.32 - 44 0 0 58 49 59 6 35 10.5 36 282 -29 59 22 20 58 17 45 59 23 3 58 17 2 -0.32 - 43 0 0 58 34 53 6 35 7.1 36 283 -29 59 7 24 58 2 28 59 8 8 58 1 45 -0.32 - 42 0 0 58 19 14 6 35 3.6 35 284 -28 58 51 56 57 46 38 58 52 40 57 45 55 -0.31 - 41 0 0 58 3 0 6 35 0.1 34 285 -28 58 35 54 57 30 14 58 36 38 57 29 30 -0.31 - 40 0 0 57 46 12 6 34 56.7 34 286 -28 58 19 17 57 13 14 58 20 2 57 12 30 -0.31 - 39 0 0 57 28 48 6 34 53.2 33 287 -27 58 2 5 56 55 38 58 2 50 56 54 54 -0.31 - 38 0 0 57 10 48 6 34 49.8 33 288 -27 57 44 17 56 37 26 57 45 2 56 36 42 -0.31 - 37 0 0 56 52 11 6 34 46.3 32 289 -26 57 25 52 56 18 36 57 26 37 56 17 51 -0.31 - 36 0 0 56 32 55 6 34 42.9 31 290 -26 57 6 49 55 59 8 57 7 35 55 58 23 -0.31 - 35 0 0 56 13 0 6 34 39.4 31 291 -25 56 47 7 55 39 0 56 47 53 55 38 15 -0.31 - 34 0 0 55 52 25 6 34 36.0 30 291 -25 56 26 46 55 18 12 56 27 32 55 17 27 -0.31 - 33 0 0 55 31 10 6 34 32.6 30 292 -24 56 5 44 54 56 44 56 6 30 54 55 58 -0.31 - 32 0 0 55 9 13 6 34 29.2 29 293 -24 55 44 1 54 34 33 55 44 47 54 33 46 -0.31 - 31 0 0 54 46 32 6 34 25.8 28 294 -23 55 21 35 54 11 39 55 22 21 54 10 52 -0.31 - 30 0 0 54 23 9 6 34 22.5 28 295 -23 54 58 25 53 48 0 54 59 12 53 47 14 -0.31 - 29 0 0 53 59 0 6 34 19.1 27 296 -22 54 34 31 53 23 37 54 35 18 53 22 50 -0.31 - 28 0 0 53 34 5 6 34 15.8 26 297 -22 54 9 51 52 58 28 54 10 39 52 57 41 -0.31 - 27 0 0 53 8 24 6 34 12.5 25 297 -21 53 44 25 52 32 32 53 45 13 52 31 44 -0.31 - 26 0 0 52 41 55 6 34 9.3 25 298 -20 53 18 11 52 5 48 53 18 59 52 5 0 -0.31 - 25 0 0 52 14 37 6 34 6.1 24 299 -20 52 51 8 51 38 15 52 51 57 51 37 26 -0.31 - 24 0 0 51 46 29 6 34 2.9 23 300 -19 52 23 16 51 9 51 52 24 5 51 9 2 -0.31 - 23 0 0 51 17 30 6 33 59.7 22 301 -19 51 54 32 50 40 36 51 55 22 50 39 47 -0.31 - 22 0 0 50 47 38 6 33 56.6 22 302 -18 51 24 57 50 10 30 51 25 47 50 9 40 -0.31 - 21 0 0 50 16 54 6 33 53.6 21 302 -17 50 54 29 49 39 30 50 55 19 49 38 40 -0.32 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28 44 42 51 31 41 27 50 -0.33 - 7 0 0 41 24 54 6 33 20.0 8 313 -6 42 6 11 40 43 49 42 7 6 40 42 54 -0.34 - 6 0 0 40 39 9 6 33 18.6 7 313 -5 41 20 41 39 57 50 41 21 37 39 56 55 -0.35 - 5 0 0 39 52 21 6 33 17.3 6 314 -4 40 34 7 39 10 48 40 35 3 39 9 53 -0.36 - 4 0 0 39 4 29 6 33 16.3 5 315 -3 39 46 29 38 22 43 39 47 25 38 21 47 -0.37 - 3 0 0 38 15 34 6 33 15.4 3 315 -2 38 57 47 37 33 34 38 58 43 37 32 38 -0.40 - 2 0 0 37 25 35 6 33 14.8 2 316 -1 38 8 1 36 43 23 38 8 58 36 42 27 -0.45 - 1 0 0 36 34 35 6 33 14.5 1 316 0 37 17 13 35 52 10 37 18 10 35 51 14 -0.63 0 0 0 .. .. .... .. .. .. .. .. .. 36 25 22 .. .. .. 36 26 19 .. .. .. .... Uncertainty in time = +/- 1 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: TYC 2303-01454-1 * constellation : Andromeda * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 01 20 40.3801 DE: +36 21 02.591 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 01 20 40.3800 DE: +36 21 02.591 * position source: Gaia DR3 * 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: (506) Marion asteroid class: approx. diameter [km]: 103 approx. diameter ["]: 0.076 distance from Earth [AU]: 1.86530 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#109 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): 0.012", 0.001", 59.98° remarks: * orbital elements for (506)Marion : Mean anomaly = 312.7050157205 deg Arg. of pericenter = 145.0219789499 deg Long. of node = 312.8408364160 deg Inclination = 16.9761629380 deg Eccentricity = 0.1459021355 Semimajor axis = 3.0451013734 AU Perihelion dist = 2.6008145803 AU Mag: H = 9.04, G = 0.15 Epoch of elements : MJD 60253.27909722 TDT (2023 Nov 05.2791) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1092023Oct09,9.13,2023,11,5,6.703052,-0.145272,0.264224,-5.596945,-3.078417,0.001867,-0.001905,0.000001,0.000001 -124.2797,36.4779,75.35,-15.61,False TYC 2303-01454-1,1.34455003,36.3507196,0.00,12.17,0.00,0.0,0,,1.36733812,36.4778996,1.33,0.00,0,0,0 506,Marion,13.12,103.300,1.8653,0,0,-2.187,-14.52,,5.0,0 0,312.6532,2023,11,5,145.0220,312.8408,16.9762,0.14590,3.04510,2.60081,8.92,5.0,0.15 1.011,0.0123,0.0008,60,0.0124,Known errors,-1.00,0,-1,-1 20231105_1454-1,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:01 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org