IOTA/IOTA-ES occultation update for (3063) Makhaon / UCAC4 553-042613 event on 2023 Oct 18, 06:35 UT Visible from South America Summary ------- On 2023 Oct 18 UT, the 114.5 km diameter asteroid (3063) Makhaon will occult a 11.8 mag star in the constellation Cancer for observers along a path across South America. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.49 mag to 16.24 mag (the magnitude of the asteroid) for at most 7.400 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 Oct 18, 06:30 - 2023 Oct 18, 06:39 * geocentric midpoint of event [JD]: 2460235.77451492 * magnitude of target star: 11.77 * magnitude drop [mag]: 4.49 * estimated maximum duration [s]: 7.400 * Moon: 13 % sunlit, 127° distance * Sun: 85° distance * rough path description: South America The occultation path -------------------- * approximate projected width [km]: 193 * 1 sigma uncertainty interval [path widths]: +/- 0.02 * 1 sigma uncertainty interval [seconds]: +/- 4.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.016, +/- 0.007) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.000", 114°) * approx speed of asteroid's shadow [km/s]: 15.4740 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 553-042613 by 3063 Makhaon on 2023 Oct 18 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 .. .. .... .. .. .. .. .. .. .. .. .. -28 11 41 .. .. .. -28 9 43 .... - 80 0 0 -28 45 13 6 31 14.8 1 66 -47 -29 42 26 -27 49 22 -29 44 30 -27 47 24 .... - 79 0 0 -28 23 23 6 31 15.0 2 66 -46 -29 20 16 -27 27 50 -29 22 20 -27 25 53 0.88 - 78 0 0 -28 2 21 6 31 15.5 3 65 -46 -28 58 55 -27 7 5 -29 0 58 -27 5 8 1.04 - 77 0 0 -27 42 6 6 31 16.1 4 65 -46 -28 38 24 -26 47 7 -28 40 25 -26 45 11 1.12 - 76 0 0 -27 22 40 6 31 16.9 5 64 -46 -28 18 41 -26 27 57 -28 20 42 -26 26 1 1.17 - 75 0 0 -27 4 3 6 31 18.0 6 64 -45 -27 59 47 -26 9 35 -28 1 48 -26 7 40 1.20 - 74 0 0 -26 46 15 6 31 19.2 7 63 -45 -27 41 44 -25 52 0 -27 43 44 -25 50 6 1.23 - 73 0 0 -26 29 15 6 31 20.6 7 63 -45 -27 24 29 -25 35 14 -27 26 29 -25 33 20 1.24 - 72 0 0 -26 13 5 6 31 22.1 8 62 -44 -27 8 6 -25 19 17 -27 10 4 -25 17 23 1.26 - 71 0 0 -25 57 43 6 31 23.9 9 62 -44 -26 52 31 -25 4 7 -26 54 29 -25 2 14 1.27 - 70 0 0 -25 43 10 6 31 25.8 10 61 -43 -26 37 46 -24 49 46 -26 39 44 -24 47 53 1.28 - 69 0 0 -25 29 28 6 31 27.9 11 61 -43 -26 23 52 -24 36 14 -26 25 50 -24 34 21 1.28 - 68 0 0 -25 16 34 6 31 30.2 12 60 -42 -26 10 49 -24 23 30 -26 12 46 -24 21 38 1.29 - 67 0 0 -25 4 31 6 31 32.6 13 60 -42 -25 58 35 -24 11 36 -26 0 32 -24 9 44 1.30 - 66 0 0 -24 53 18 6 31 35.3 14 59 -41 -25 47 13 -24 0 31 -25 49 10 -23 58 39 1.30 - 65 0 0 -24 42 55 6 31 38.1 15 59 -41 -25 36 42 -23 50 16 -25 38 38 -23 48 24 1.31 - 64 0 0 -24 33 21 6 31 41.0 16 58 -40 -25 27 1 -23 40 49 -25 28 57 -23 38 58 1.31 - 63 0 0 -24 24 38 6 31 44.1 16 58 -39 -25 18 11 -23 32 12 -25 20 7 -23 30 22 1.32 - 62 0 0 -24 16 45 6 31 47.4 17 57 -39 -25 10 12 -23 24 25 -25 12 7 -23 22 34 1.32 - 61 0 0 -24 9 42 6 31 50.9 18 57 -38 -25 3 3 -23 17 27 -25 4 59 -23 15 36 1.32 - 60 0 0 -24 3 29 6 31 54.5 19 56 -37 -24 56 46 -23 11 19 -24 58 41 -23 9 28 1.32 - 59 0 0 -23 58 7 6 31 58.2 20 56 -37 -24 51 20 -23 6 0 -24 53 15 -23 4 10 1.33 - 58 0 0 -23 53 36 6 32 2.1 21 55 -36 -24 46 46 -23 1 31 -24 48 41 -22 59 41 1.33 - 57 0 0 -23 49 55 6 32 6.2 21 55 -35 -24 43 3 -22 57 53 -24 44 58 -22 56 3 1.33 - 56 0 0 -23 47 5 6 32 10.4 22 54 -34 -24 40 11 -22 55 4 -24 42 6 -22 53 14 1.34 - 55 0 0 -23 45 6 6 32 14.7 23 53 -34 -24 38 11 -22 53 6 -24 40 6 -22 51 16 1.34 - 54 0 0 -23 43 57 6 32 19.2 24 53 -33 -24 37 2 -22 51 58 -24 38 57 -22 50 8 1.34 - 53 0 0 -23 43 40 6 32 23.8 24 52 -32 -24 36 45 -22 51 40 -24 38 40 -22 49 50 1.34 - 52 0 0 -23 44 13 6 32 28.6 25 51 -31 -24 37 20 -22 52 12 -24 39 15 -22 50 22 1.34 - 51 0 0 -23 45 38 6 32 33.5 26 51 -30 -24 38 47 -22 53 35 -24 40 42 -22 51 45 1.34 - 50 0 0 -23 47 54 6 32 38.5 27 50 -29 -24 41 6 -22 55 48 -24 43 1 -22 53 58 1.35 - 49 0 0 -23 51 1 6 32 43.6 27 49 -29 -24 44 16 -22 58 52 -24 46 11 -22 57 2 1.35 - 48 0 0 -23 55 0 6 32 48.9 28 48 -28 -24 48 19 -23 2 47 -24 50 15 -23 0 57 1.35 - 47 0 0 -23 59 50 6 32 54.3 29 48 -27 -24 53 15 -23 7 33 -24 55 10 -23 5 42 1.35 - 46 0 0 -24 5 32 6 32 59.8 29 47 -26 -24 59 2 -23 13 9 -25 0 58 -23 11 18 1.35 - 45 0 0 -24 12 5 6 33 5.4 30 46 -25 -25 5 42 -23 19 36 -25 7 38 -23 17 45 1.35 - 44 0 0 -24 19 31 6 33 11.2 30 45 -24 -25 13 15 -23 26 55 -25 15 11 -23 25 3 1.35 - 43 0 0 -24 27 48 6 33 17.0 31 44 -23 -25 21 40 -23 35 4 -25 23 36 -23 33 13 1.35 - 42 0 0 -24 36 57 6 33 23.0 31 43 -22 -25 30 57 -23 44 5 -25 32 54 -23 42 13 1.36 - 41 0 0 -24 46 57 6 33 29.0 32 42 -21 -25 41 8 -23 53 56 -25 43 5 -23 52 4 1.36 - 40 0 0 -24 57 50 6 33 35.1 32 42 -20 -25 52 11 -24 4 40 -25 54 8 -24 2 47 1.36 - 39 0 0 -25 9 35 6 33 41.4 33 41 -20 -26 4 7 -24 16 14 -26 6 5 -24 14 21 1.36 - 38 0 0 -25 22 12 6 33 47.7 33 40 -19 -26 16 56 -24 28 40 -26 18 54 -24 26 46 1.36 - 37 0 0 -25 35 41 6 33 54.1 34 39 -18 -26 30 38 -24 41 57 -26 32 36 -24 40 3 1.36 - 36 0 0 -25 50 2 6 34 0.6 34 38 -17 -26 45 13 -24 56 5 -26 47 12 -24 54 11 1.36 - 35 0 0 -26 5 16 6 34 7.2 34 36 -16 -27 0 41 -25 11 5 -27 2 40 -25 9 11 1.36 - 34 0 0 -26 21 22 6 34 13.8 35 35 -15 -27 17 2 -25 26 57 -27 19 2 -25 25 2 1.36 - 33 0 0 -26 38 20 6 34 20.5 35 34 -14 -27 34 16 -25 43 40 -27 36 17 -25 41 44 1.36 - 32 0 0 -26 56 10 6 34 27.3 35 33 -13 -27 52 23 -26 1 14 -27 54 25 -25 59 18 1.36 - 31 0 0 -27 14 53 6 34 34.1 36 32 -12 -28 11 24 -26 19 40 -28 13 26 -26 17 44 1.36 - 30 0 0 -27 34 28 6 34 41.0 36 31 -11 -28 31 18 -26 38 57 -28 33 21 -26 37 0 1.36 - 29 0 0 -27 54 54 6 34 47.9 36 30 -10 -28 52 4 -26 59 6 -28 54 8 -26 57 8 1.36 - 28 0 0 -28 16 14 6 34 54.9 36 29 -9 -29 13 44 -27 20 6 -29 15 49 -27 18 7 1.36 - 27 0 0 -28 38 24 6 35 1.9 36 27 -8 -29 36 17 -27 41 56 -29 38 22 -27 39 57 1.36 - 26 0 0 -29 1 27 6 35 8.9 36 26 -7 -29 59 42 -28 4 38 -30 1 48 -28 2 38 1.36 - 25 0 0 -29 25 22 6 35 16.0 36 25 -6 -30 24 0 -28 28 11 -30 26 7 -28 26 10 1.36 - 24 0 0 -29 50 8 6 35 23.1 36 24 -5 -30 49 11 -28 52 34 -30 51 19 -28 50 33 1.36 - 23 0 0 -30 15 45 6 35 30.2 36 22 -4 -31 15 14 -29 17 48 -31 17 23 -29 15 45 1.36 - 22 0 0 -30 42 14 6 35 37.3 36 21 -3 -31 42 9 -29 43 51 -31 44 19 -29 41 48 1.36 - 21 0 0 -31 9 33 6 35 44.4 36 20 -2 -32 9 56 -30 10 45 -32 12 7 -30 8 41 1.36 - 20 0 0 -31 37 43 6 35 51.5 36 19 -1 -32 38 34 -30 38 28 -32 40 46 -30 36 23 1.36 - 19 0 0 -32 6 43 6 35 58.6 36 17 0 -33 8 4 -31 7 1 -33 10 17 -31 4 55 1.36 - 18 0 0 -32 36 32 6 36 5.7 35 16 1 -33 38 25 -31 36 22 -33 40 39 -31 34 15 1.36 - 17 0 0 -33 7 11 6 36 12.8 35 15 2 -34 9 36 -32 6 32 -34 11 51 -32 4 24 1.36 - 16 0 0 -33 38 39 6 36 19.8 35 14 3 -34 41 37 -32 37 29 -34 43 53 -32 35 20 1.36 - 15 0 0 -34 10 55 6 36 26.8 35 12 4 -35 14 27 -33 9 14 -35 16 45 -33 7 4 1.36 - 14 0 0 -34 43 59 6 36 33.8 34 11 4 -35 48 7 -33 41 45 -35 50 26 -33 39 35 1.36 - 13 0 0 -35 17 50 6 36 40.6 34 10 5 -36 22 34 -34 15 3 -36 24 55 -34 12 51 1.36 - 12 0 0 -35 52 28 6 36 47.5 33 9 6 -36 57 49 -34 49 6 -37 0 11 -34 46 53 1.36 - 11 0 0 -36 27 51 6 36 54.3 33 8 7 -37 33 51 -35 23 54 -37 36 15 -35 21 39 1.36 - 10 0 0 -37 3 59 6 37 0.9 32 6 8 -38 10 39 -35 59 25 -38 13 4 -35 57 9 1.36 - 9 0 0 -37 40 50 6 37 7.6 32 5 9 -38 48 13 -36 35 39 -38 50 39 -36 33 22 1.36 - 8 0 0 -38 18 25 6 37 14.1 31 4 10 -39 26 30 -37 12 35 -39 28 58 -37 10 17 1.36 - 7 0 0 -38 56 42 6 37 20.5 31 3 11 -40 5 30 -37 50 12 -40 8 0 -37 47 53 1.36 - 6 0 0 -39 35 39 6 37 26.8 30 2 11 -40 45 13 -38 28 29 -40 47 44 -38 26 8 1.36 - 5 0 0 -40 15 16 6 37 33.0 29 1 12 -41 25 36 -39 7 24 -41 28 9 -39 5 2 1.36 - 4 0 0 -40 55 31 6 37 39.1 29 360 13 -42 6 39 -39 46 57 -42 9 14 -39 44 33 1.36 - 3 0 0 -41 36 23 6 37 45.1 28 358 14 -42 48 20 -40 27 5 -42 50 57 -40 24 40 1.36 - 2 0 0 -42 17 51 6 37 50.9 27 357 15 -43 30 38 -41 7 48 -43 33 16 -41 5 21 1.36 - 1 0 0 -42 59 52 6 37 56.6 27 356 15 -44 13 30 -41 49 4 -44 16 11 -41 46 35 1.36 - 0 0 0 -43 42 26 6 38 2.1 26 355 16 -44 56 57 -42 30 51 -44 59 40 -42 28 21 1.36 1 0 0 -44 25 31 6 38 7.5 25 354 17 -45 40 55 -43 13 8 -45 43 40 -43 10 36 1.36 2 0 0 -45 9 4 6 38 12.7 24 353 17 -46 25 23 -43 55 53 -46 28 10 -43 53 19 1.36 3 0 0 -45 53 4 6 38 17.7 24 352 18 -47 10 19 -44 39 3 -47 13 8 -44 36 29 1.36 4 0 0 -46 37 29 6 38 22.6 23 351 19 -47 55 41 -45 22 38 -47 58 32 -45 20 2 1.36 5 0 0 -47 22 16 6 38 27.3 22 350 19 -48 41 27 -46 6 35 -48 44 20 -46 3 57 1.36 6 0 0 -48 7 24 6 38 31.8 21 349 20 -49 27 34 -46 50 52 -49 30 29 -46 48 12 1.36 7 0 0 -48 52 51 6 38 36.1 20 348 20 -50 14 0 -47 35 26 -50 16 58 -47 32 45 1.36 8 0 0 -49 38 33 6 38 40.2 19 347 21 -51 0 43 -48 20 16 -51 3 43 -48 17 33 1.36 9 0 0 -50 24 29 6 38 44.2 18 346 22 -51 47 40 -49 5 19 -51 50 43 -49 2 34 1.36 10 0 0 -51 10 35 6 38 47.9 17 346 22 -52 34 49 -49 50 32 -52 37 54 -49 47 45 1.37 11 0 0 -51 56 50 6 38 51.4 17 345 22 -53 22 6 -50 35 53 -53 25 13 -50 33 5 1.37 12 0 0 -52 43 10 6 38 54.7 16 344 23 -54 9 29 -51 21 20 -54 12 39 -51 18 30 1.37 13 0 0 -53 29 33 6 38 57.8 15 343 23 -54 56 55 -52 6 50 -55 0 7 -52 3 57 1.37 14 0 0 -54 15 55 6 39 0.7 14 342 24 -55 44 21 -52 52 19 -55 47 35 -52 49 25 1.37 14 59 59 -55 2 15 6 39 3.4 13 341 24 -56 31 43 -53 37 46 -56 35 0 -53 34 50 1.37 15 59 59 -55 48 28 6 39 5.9 12 340 24 -57 18 58 -54 23 7 -57 22 18 -54 20 10 1.38 16 59 59 -56 34 33 6 39 8.2 11 339 24 -58 6 4 -55 8 20 -58 9 27 -55 5 21 1.38 17 59 59 -57 20 25 6 39 10.3 10 338 25 -58 52 57 -55 53 22 -58 56 22 -55 50 21 1.38 18 59 59 -58 6 1 6 39 12.2 9 337 25 -59 39 34 -56 38 10 -59 43 1 -56 35 7 1.38 19 59 59 -58 51 20 6 39 13.9 8 337 25 -60 25 50 -57 22 40 -60 29 19 -57 19 36 1.39 20 59 59 -59 36 17 6 39 15.4 7 336 25 -61 11 44 -58 6 51 -61 15 15 -58 3 46 1.39 21 59 59 -60 20 49 6 39 16.7 7 335 25 -61 57 11 -58 50 39 -62 0 44 -58 47 32 1.40 22 59 59 -61 4 54 6 39 17.8 6 334 25 -62 42 8 -59 34 1 -62 45 44 -59 30 53 1.41 23 59 59 -61 48 29 6 39 18.7 5 333 25 -63 26 32 -60 16 56 -63 30 10 -60 13 46 1.41 24 59 59 -62 31 30 6 39 19.5 4 332 26 -64 10 19 -60 59 19 -64 13 59 -60 56 9 1.43 25 59 59 -63 13 54 6 39 20.1 3 331 26 -64 53 28 -61 41 9 -64 57 9 -61 37 58 1.45 26 59 59 -63 55 40 6 39 20.5 2 330 26 -65 35 53 -62 22 24 -65 39 36 -62 19 11 1.48 27 59 59 -64 36 45 6 39 20.8 1 329 25 .. .. .. -63 2 59 .. .. .. -62 59 46 1.54 28 59 59 -65 17 5 6 39 21.0 1 328 25 .. .. .. -63 42 55 .. .. .. -63 39 41 1.77 0 0 0 .. .. .... .. .. .. .. .. .. .. .. .. -64 22 8 .. .. .. -64 18 53 .... 0 0 0 .. .. .... .. .. .. .. .. .. .. .. .. -65 0 36 .. .. .. -64 57 21 .... Uncertainty in time = +/- 4 secs Prediction of 2023 Oct 15.9 Data for the target star ------------------------ * name: UCAC4 553-042613 * constellation : Cancer * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 04 42.0526 DE: +20 27 34.810 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 04 42.0528 DE: +20 27 34.809 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3063) Makhaon asteroid class: approx. diameter [km]: 115 approx. diameter ["]: 0.032 distance from Earth [AU]: 4.91550 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#60 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): 0.018", 0.000", 113.807° remarks: * orbital elements for (3063)Makhaon : Mean anomaly = 338.3891097913 deg Arg. of pericenter = 203.8231338693 deg Long. of node = 287.8861534814 deg Inclination = 12.1570607424 deg Eccentricity = 0.0596801549 Semimajor axis = 5.2216036631 AU Perihelion dist = 4.9099775478 AU Mag: H = 8.61, G = 0.15 Epoch of elements : MJD 60235.27458333 TDT (2023 Oct 18.2746) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#602023Oct09,7.40,2023,10,18,6.588358,-0.310623,-0.742898,8.062473,-3.358374,-0.005892,0.001255,0.000000,0.000000 -3.8030,20.3933,77.49,-9.54,False UCAC4 553-042613,8.07834793,20.4596694,0.00,11.77,0.00,0.0,0,,8.10132110,20.3933468,4.49,0.00,0,0,0 3063,Makhaon,16.24,114.500,4.9155,0,0,1.027,-6.01,,7.0,0 0,338.3664,2023,10,18,203.8231,287.8862,12.1571,0.05968,5.22160,4.90998,8.61,5.0,0.15 1.018,0.0180,0.0004,114,0.0180,Known errors,-1.00,0,-1,-1 20231018_042613,60232.87 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Oct 15, 20:54 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org