IOTA/IOTA-ES occultation update for (253) Mathilde / TYC 0692-01416-1 event on 2023 Nov 16, 17:09 UT Visible from Australia Summary ------- On 2023 Nov 16 UT, the 57.9 km diameter asteroid (253) Mathilde will occult a 11.2 mag star in the constellation Orion for observers along a path across Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.74 mag to 13.86 mag (the magnitude of the asteroid) for at most 5.590 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 16, 17:02 - 2023 Nov 16, 17:17 * geocentric midpoint of event [JD]: 2460265.21519600 * magnitude of target star: 11.21 * magnitude drop [mag]: 2.74 * estimated maximum duration [s]: 5.590 * Moon: 12 % sunlit, 155° distance * Sun: 157° distance * rough path description: Australia The occultation path -------------------- * approximate projected width [km]: 85 * 1 sigma uncertainty interval [path widths]: +/- 0.03 * 1 sigma uncertainty interval [seconds]: +/- 0.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.007, +/- 0.001) * 1 sigma uncertainty ellipse (major, minor, PA): (0.007", 0.001", 84°) * approx speed of asteroid's shadow [km/s]: 10.3524 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 0692-01416-1 by 253 Mathilde on 2023 Nov 16 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 53 59 59 -61 25 5 17 16 48.9 0 63 -3 -60 59 5 .. .. .. -60 57 37 .. .. .. .... 54 59 59 -61 10 16 17 16 48.9 1 62 -3 -60 44 12 -61 36 34 -60 42 44 -61 38 4 0.38 55 59 59 -60 55 9 17 16 48.8 1 61 -4 -60 29 2 -61 21 31 -60 27 33 -61 23 1 0.70 56 59 59 -60 39 45 17 16 48.5 2 60 -4 -60 13 33 -61 6 11 -60 12 5 -61 7 41 0.83 57 59 59 -60 24 3 17 16 48.2 2 59 -5 -59 57 47 -60 50 33 -59 56 18 -60 52 4 0.89 58 59 59 -60 8 3 17 16 47.8 3 59 -5 -59 41 44 -60 34 37 -59 40 15 -60 36 8 0.93 59 59 59 -59 51 46 17 16 47.4 3 58 -6 -59 25 23 -60 18 24 -59 23 54 -60 19 55 0.96 60 59 59 -59 35 11 17 16 46.8 4 57 -6 -59 8 44 -60 1 53 -59 7 15 -60 3 24 0.98 61 59 59 -59 18 19 17 16 46.1 5 56 -7 -58 51 49 -59 45 4 -58 50 19 -59 46 35 0.99 62 59 59 -59 1 9 17 16 45.3 5 55 -7 -58 34 36 -59 27 58 -58 33 6 -59 29 29 1.01 63 59 59 -58 43 42 17 16 44.4 6 54 -8 -58 17 6 -59 10 34 -58 15 36 -59 12 6 1.01 64 59 59 -58 25 58 17 16 43.4 6 53 -9 -57 59 19 -58 52 54 -57 57 48 -58 54 26 1.02 66 0 0 -58 7 57 17 16 42.3 7 53 -9 -57 41 15 -58 34 56 -57 39 44 -58 36 28 1.03 67 0 0 -57 49 39 17 16 41.1 8 52 -10 -57 22 54 -58 16 41 -57 21 23 -58 18 13 1.04 68 0 0 -57 31 5 17 16 39.8 8 51 -10 -57 4 17 -57 58 9 -57 2 46 -57 59 42 1.04 69 0 0 -57 12 14 17 16 38.3 9 50 -11 -56 45 23 -57 39 21 -56 43 53 -57 40 54 1.04 70 0 0 -56 53 7 17 16 36.8 9 49 -11 -56 26 14 -57 20 16 -56 24 43 -57 21 49 1.05 71 0 0 -56 33 44 17 16 35.1 10 48 -12 -56 6 49 -57 0 55 -56 5 18 -57 2 28 1.05 72 0 0 -56 14 5 17 16 33.3 11 48 -12 -55 47 8 -56 41 19 -55 45 37 -56 42 52 1.05 73 0 0 -55 54 11 17 16 31.3 11 47 -13 -55 27 12 -56 21 27 -55 25 41 -56 23 0 1.06 74 0 0 -55 34 2 17 16 29.2 12 46 -13 -55 7 1 -56 1 19 -55 5 30 -56 2 53 1.06 75 0 0 -55 13 38 17 16 27.0 13 45 -14 -54 46 36 -55 40 57 -54 45 4 -55 42 30 1.06 76 0 0 -54 53 0 17 16 24.7 13 44 -14 -54 25 56 -55 20 20 -54 24 24 -55 21 54 1.06 77 0 0 -54 32 7 17 16 22.2 14 43 -15 -54 5 2 -54 59 29 -54 3 31 -55 1 2 1.07 78 0 0 -54 11 2 17 16 19.6 15 42 -15 -53 43 56 -54 38 24 -53 42 24 -54 39 58 1.07 79 0 0 -53 49 42 17 16 16.8 15 42 -16 -53 22 36 -54 17 6 -53 21 4 -54 18 39 1.07 80 0 0 -53 28 10 17 16 13.9 16 41 -16 -53 1 3 -53 55 34 -52 59 31 -53 57 8 1.07 81 0 0 -53 6 26 17 16 10.8 16 40 -17 -52 39 18 -53 33 50 -52 37 47 -53 35 24 1.07 82 0 0 -52 44 30 17 16 7.6 17 39 -17 -52 17 22 -53 11 55 -52 15 50 -53 13 28 1.07 83 0 0 -52 22 22 17 16 4.3 18 38 -18 -51 55 14 -52 49 47 -51 53 43 -52 51 21 1.08 84 0 0 -52 0 4 17 16 0.8 18 37 -18 -51 32 56 -52 27 29 -51 31 24 -52 29 2 1.08 85 0 0 -51 37 35 17 15 57.1 19 36 -19 -51 10 28 -52 4 59 -51 8 56 -52 6 33 1.08 86 0 0 -51 14 57 17 15 53.3 20 36 -19 -50 47 50 -51 42 21 -50 46 18 -51 43 54 1.08 87 0 0 -50 52 9 17 15 49.4 20 35 -20 -50 25 3 -51 19 32 -50 23 31 -51 21 6 1.08 88 0 0 -50 29 13 17 15 45.3 21 34 -20 -50 2 8 -50 56 35 -50 0 36 -50 58 8 1.08 89 0 0 -50 6 9 17 15 41.0 22 33 -21 -49 39 5 -50 33 30 -49 37 33 -50 35 3 1.08 90 0 0 -49 42 57 17 15 36.5 22 32 -21 -49 15 54 -50 10 16 -49 14 23 -50 11 50 1.08 91 0 0 -49 19 39 17 15 32.0 23 31 -22 -48 52 37 -49 46 57 -48 51 6 -49 48 30 1.08 92 0 0 -48 56 14 17 15 27.2 24 30 -22 -48 29 14 -49 23 30 -48 27 43 -49 25 3 1.08 93 0 0 -48 32 44 17 15 22.3 24 29 -23 -48 5 46 -48 59 58 -48 4 14 -49 1 31 1.08 94 0 0 -48 9 9 17 15 17.3 25 28 -23 -47 42 13 -48 36 21 -47 40 41 -48 37 54 1.08 95 0 0 -47 45 29 17 15 12.0 26 28 -24 -47 18 35 -48 12 40 -47 17 4 -48 14 13 1.08 96 0 0 -47 21 47 17 15 6.7 26 27 -24 -46 54 55 -47 48 54 -46 53 24 -47 50 27 1.09 97 0 0 -46 58 1 17 15 1.2 27 26 -24 -46 31 12 -47 25 6 -46 29 41 -47 26 39 1.09 98 0 0 -46 34 13 17 14 55.5 28 25 -25 -46 7 27 -47 1 16 -46 5 56 -47 2 48 1.09 99 0 0 -46 10 24 17 14 49.6 28 24 -25 -45 43 40 -46 37 24 -45 42 10 -46 38 56 1.09 100 0 0 -45 46 34 17 14 43.7 29 23 -26 -45 19 53 -46 13 31 -45 18 23 -46 15 3 1.09 101 0 0 -45 22 44 17 14 37.5 30 22 -26 -44 56 6 -45 49 38 -44 54 35 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17 11 23.7 41 354 -29 -35 33 59 -36 24 14 -35 32 35 -36 25 40 1.09 127 0 0 -35 38 57 17 11 14.8 42 352 -29 -35 14 1 -36 4 7 -35 12 36 -36 5 33 1.09 128 0 0 -35 19 11 17 11 5.8 42 351 -29 -34 54 18 -35 44 16 -34 52 54 -35 45 42 1.09 129 0 0 -34 59 41 17 10 56.8 42 350 -29 -34 34 53 -35 24 42 -34 33 29 -35 26 8 1.09 130 0 0 -34 40 29 17 10 47.7 42 348 -29 -34 15 45 -35 5 26 -34 14 21 -35 6 51 1.09 131 0 0 -34 21 35 17 10 38.6 42 347 -29 -33 56 54 -34 46 28 -33 55 31 -34 47 53 1.09 132 0 0 -34 2 59 17 10 29.4 42 346 -28 -33 38 22 -34 27 48 -33 36 59 -34 29 12 1.09 133 0 0 -33 44 41 17 10 20.3 43 345 -28 -33 20 9 -34 9 26 -33 18 46 -34 10 51 1.09 134 0 0 -33 26 43 17 10 11.1 43 343 -28 -33 2 14 -33 51 24 -33 0 51 -33 52 49 1.09 135 0 0 -33 9 5 17 10 1.9 43 342 -28 -32 44 39 -33 33 42 -32 43 17 -33 35 6 1.09 136 0 0 -32 51 46 17 9 52.7 43 341 -27 -32 27 24 -33 16 19 -32 26 2 -33 17 43 1.09 137 0 0 -32 34 47 17 9 43.5 43 339 -27 -32 10 29 -32 59 17 -32 9 7 -33 0 41 1.09 138 0 0 -32 18 9 17 9 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Uncertainty in time = +/- 1 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: TYC 0692-01416-1 * constellation : Orion * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 04 56 43.9960 DE: +12 30 05.722 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 04 56 43.9960 DE: +12 30 05.722 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.200) * V mag [mag]: 11.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (253) Mathilde asteroid class: approx. diameter [km]: 58 approx. diameter ["]: 0.053 distance from Earth [AU]: 1.51010 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#236 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): 0.007", 0.001", 83.819° remarks: * orbital elements for (253)Mathilde : Mean anomaly = 59.1504463173 deg Arg. of pericenter = 157.7997493042 deg Long. of node = 179.5232627541 deg Inclination = 6.7403865565 deg Eccentricity = 0.2641261218 Semimajor axis = 2.6486143562 AU Perihelion dist = 1.9490461182 AU Mag: H = 10.40, G = 0.15 Epoch of elements : MJD 60264.71506944 TDT (2023 Nov 16.7151) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#2362023Oct09,5.59,2023,11,16,17.164704,0.209631,-0.703543,-5.599846,-1.668637,-0.002101,0.000730,0.000001,0.000000 121.5345,12.5403,-81.28,-18.79,False TYC 0692-01416-1,4.94555443,12.5015895,0.00,11.21,0.00,0.0,0,,4.96804904,12.5402916,2.74,0.00,0,0,0 253,Mathilde,13.86,57.900,1.5101,0,0,-2.227,-9.71,,0.6,0 0,58.9869,2023,11,16,157.7997,179.5233,6.7404,0.26413,2.64861,1.94905,10.41,5.0,0.15 1.028,0.0073,0.0007,84,0.0074,Known errors,-1.00,0,-1,-1 20231116_1416-1,60232.88 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 21:05 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org