IOTA/IOTA-ES occultation update for (3036) Krat / TYC 6412-00293-1 event on 2023 Jun 27, 19:02 UT Visible from New Zealand, Australia Summary ------- On 2023 Jun 27 UT, the 43.8 km diameter asteroid (3036) Krat will occult a 11.6 mag star in the constellation Cetus for observers along a path across New Zealand, Australia. In the case of an occultation, the combined light of the asteroid and the star will drop by 4.20 mag to 15.82 mag (the magnitude of the asteroid) for at most 4.590 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: 70 * date and approx. time of event: 2023 Jun 27, 18:51 - 2023 Jun 27, 19:13 * geocentric midpoint of event [JD]: 2460123.29327617 * magnitude of target star: 11.64 * magnitude drop [mag]: 4.20 * estimated maximum duration [s]: 4.590 * Moon: 64 % sunlit, 142° distance * Sun: 104° distance * rough path description: New Zealand, Australia Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 47 * 1 sigma uncertainty interval [path widths]: +/- 0.84 * 1 sigma uncertainty interval [seconds]: +/- 3.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.020) * 1 sigma uncertainty ellipse (major, minor, PA): (0.028", 0.003", 44°) * approx speed of asteroid's shadow [km/s]: 9.5506 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6412-00293-1 by 3036 Krat on 2023 Jun 27 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 64 0 0 .. .. .... .. .. .. .. .. .. -17 10 57 .. .. .. -17 34 43 .. .. .. .... 65 0 0 -17 24 29 18 51 50.8 1 115 -76 -17 38 35 -17 10 24 -18 2 21 -16 46 46 .... 66 0 0 -17 52 9 18 51 51.2 2 115 -78 -18 6 16 -17 38 4 -18 30 4 -17 14 25 0.36 67 0 0 -18 19 52 18 51 51.8 3 115 -79 -18 34 0 -18 5 46 -18 57 49 -17 42 6 0.37 68 0 0 -18 47 38 18 51 52.6 4 114 -80 -19 1 46 -18 33 31 -19 25 35 -18 9 50 0.37 69 0 0 -19 15 24 18 51 53.7 5 114 -81 -19 29 33 -19 1 17 -19 53 23 -18 37 35 0.37 70 0 0 -19 43 11 18 51 55.0 6 114 -82 -19 57 20 -19 29 3 -20 21 11 -19 5 21 0.37 71 0 0 -20 10 58 18 51 56.5 7 113 -83 -20 25 7 -19 56 50 -20 48 59 -19 33 7 0.37 72 0 0 -20 38 43 18 51 58.3 8 113 -84 -20 52 53 -20 24 35 -21 16 45 -20 0 51 0.37 73 0 0 -21 6 27 18 52 0.3 9 113 -85 -21 20 37 -20 52 18 -21 44 30 -20 28 34 0.38 74 0 0 -21 34 8 18 52 2.6 10 112 -86 -21 48 18 -21 19 59 -22 12 11 -20 56 15 0.38 75 0 0 -22 1 46 18 52 5.1 11 112 -87 -22 15 56 -21 47 37 -22 39 49 -21 23 52 0.38 76 0 0 -22 29 19 18 52 7.8 13 111 -87 -22 43 29 -22 15 10 -23 7 23 -21 51 26 0.38 77 0 0 -22 56 48 18 52 10.7 14 111 -88 -23 10 58 -22 42 39 -23 34 51 -22 18 55 0.38 78 0 0 -23 24 11 18 52 13.8 15 111 -88 -23 38 21 -23 10 2 -24 2 14 -22 46 18 0.38 79 0 0 -23 51 27 18 52 17.2 16 110 -88 -24 5 37 -23 37 19 -24 29 30 -23 13 35 0.38 80 0 0 -24 18 37 18 52 20.7 17 110 -87 -24 32 46 -24 4 29 -24 56 39 -23 40 45 0.38 81 0 0 -24 45 38 18 52 24.5 18 109 -86 -24 59 48 -24 31 31 -25 23 39 -24 7 48 0.38 82 0 0 -25 12 31 18 52 28.5 19 109 -85 -25 26 40 -24 58 24 -25 50 31 -24 34 42 0.38 83 0 0 -25 39 15 18 52 32.6 20 108 -84 -25 53 23 -25 25 8 -26 17 14 -25 1 27 0.38 84 0 0 -26 5 49 18 52 37.0 21 108 -83 -26 19 57 -25 51 42 -26 43 46 -25 28 2 0.38 85 0 0 -26 32 12 18 52 41.5 22 107 -82 -26 46 19 -26 18 6 -27 10 7 -25 54 27 0.38 86 0 0 -26 58 24 18 52 46.3 23 107 -81 -27 12 30 -26 44 19 -27 36 17 -26 20 40 0.38 87 0 0 -27 24 23 18 52 51.2 24 106 -80 -27 38 29 -27 10 19 -28 2 15 -26 46 42 0.38 88 0 0 -27 50 11 18 52 56.3 25 106 -79 -28 4 16 -27 36 7 -28 28 0 -27 12 32 0.37 89 0 0 -28 15 45 18 53 1.6 26 105 -78 -28 29 49 -28 1 42 -28 53 32 -27 38 8 0.37 90 0 0 -28 41 5 18 53 7.0 27 105 -77 -28 55 8 -28 27 3 -29 18 49 -28 3 31 0.37 91 0 0 -29 6 11 18 53 12.6 28 104 -76 -29 20 13 -28 52 10 -29 43 53 -28 28 39 0.37 92 0 0 -29 31 2 18 53 18.4 29 103 -75 -29 45 3 -29 17 3 -30 8 41 -28 53 33 0.37 93 0 0 -29 55 38 18 53 24.3 30 103 -75 -30 9 38 -29 41 39 -30 33 13 -29 18 12 0.37 94 0 0 -30 19 57 18 53 30.3 30 102 -74 -30 33 56 -30 6 0 -30 57 30 -29 42 35 0.37 95 0 0 -30 44 1 18 53 36.5 31 102 -73 -30 57 58 -30 30 5 -31 21 30 -30 6 41 0.37 96 0 0 -31 7 47 18 53 42.8 32 101 -72 -31 21 43 -30 53 52 -31 45 13 -30 30 31 0.37 97 0 0 -31 31 16 18 53 49.3 33 100 -71 -31 45 11 -31 17 22 -32 8 38 -30 54 3 0.37 98 0 0 -31 54 27 18 53 55.9 34 99 -70 -32 8 21 -31 40 35 -32 31 46 -31 17 18 0.37 99 0 0 -32 17 20 18 54 2.6 35 99 -69 -32 31 12 -32 3 29 -32 54 35 -31 40 15 0.37 100 0 0 -32 39 55 18 54 9.5 36 98 -68 -32 53 45 -32 26 5 -33 17 5 -32 2 53 0.37 101 0 0 -33 2 10 18 54 16.4 37 97 -67 -33 15 59 -32 48 22 -33 39 17 -32 25 13 0.37 102 0 0 -33 24 6 18 54 23.5 38 97 -66 -33 37 54 -33 10 20 -34 1 9 -32 47 13 0.37 103 0 0 -33 45 43 18 54 30.6 39 96 -65 -33 59 29 -33 31 58 -34 22 41 -33 8 54 0.37 104 0 0 -34 6 59 18 54 37.9 40 95 -64 -34 20 44 -33 53 16 -34 43 53 -33 30 14 0.37 105 0 0 -34 27 56 18 54 45.3 41 94 -63 -34 41 38 -34 14 14 -35 4 45 -33 51 15 0.37 106 0 0 -34 48 31 18 54 52.7 41 93 -62 -35 2 13 -34 34 52 -35 25 16 -34 11 55 0.37 107 0 0 -35 8 47 18 55 0.2 42 93 -61 -35 22 26 -34 55 8 -35 45 27 -34 32 15 0.37 108 0 0 -35 28 41 18 55 7.8 43 92 -60 -35 42 18 -35 15 4 -36 5 17 -34 52 14 0.37 109 0 0 -35 48 14 18 55 15.5 44 91 -60 -36 1 50 -35 34 39 -36 24 45 -35 11 51 0.37 110 0 0 -36 7 25 18 55 23.3 45 90 -59 -36 21 0 -35 53 52 -36 43 52 -35 31 7 0.37 111 0 0 -36 26 15 18 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50.6 23 254 34 -29 18 26 -28 50 23 -29 42 5 -28 26 53 0.39 -126 0 0 -28 39 22 19 11 55.3 22 253 35 -28 53 25 -28 25 21 -29 17 6 -28 1 49 0.39 -125 0 0 -28 14 7 19 11 59.8 21 253 36 -28 28 10 -28 0 4 -28 51 53 -27 36 31 0.39 -124 0 0 -27 48 37 19 12 4.2 20 252 37 -28 2 42 -27 34 34 -28 26 26 -27 10 59 0.39 -123 0 0 -27 22 55 19 12 8.3 19 252 37 -27 37 1 -27 8 51 -28 0 46 -26 45 15 0.39 -122 0 0 -26 57 1 19 12 12.3 18 251 38 -27 11 7 -26 42 56 -27 34 53 -26 19 18 0.40 -121 0 0 -26 30 54 19 12 16.1 17 251 39 -26 45 1 -26 16 49 -27 8 48 -25 53 10 0.40 -120 0 0 -26 4 37 19 12 19.7 16 250 39 -26 18 44 -25 50 31 -26 42 33 -25 26 51 0.40 -119 0 0 -25 38 9 19 12 23.1 15 250 40 -25 52 17 -25 24 2 -26 16 6 -25 0 22 0.40 -118 0 0 -25 11 31 19 12 26.3 14 249 41 -25 25 39 -24 57 24 -25 49 30 -24 33 43 0.40 -117 0 0 -24 44 44 19 12 29.3 13 249 41 -24 58 53 -24 30 37 -25 22 44 -24 6 55 0.40 -116 0 0 -24 17 49 19 12 32.0 12 249 42 -24 31 58 -24 3 41 -24 55 49 -23 39 59 0.41 -115 0 0 -23 50 46 19 12 34.6 11 248 42 -24 4 55 -23 36 38 -24 28 47 -23 12 55 0.41 -114 0 0 -23 23 36 19 12 36.9 10 248 43 -23 37 45 -23 9 28 -24 1 37 -22 45 45 0.41 -113 0 0 -22 56 20 19 12 39.1 9 247 44 -23 10 29 -22 42 11 -23 34 21 -22 18 28 0.42 -112 0 0 -22 28 58 19 12 41.0 8 247 44 -22 43 7 -22 14 50 -23 7 0 -21 51 6 0.42 -111 0 0 -22 1 31 19 12 42.6 7 247 45 -22 15 41 -21 47 23 -22 39 33 -21 23 40 0.43 -110 0 0 -21 34 0 19 12 44.1 6 246 45 -21 48 10 -21 19 52 -22 12 2 -20 56 9 0.44 -109 0 0 -21 6 26 19 12 45.3 5 246 46 -21 20 36 -20 52 18 -21 44 27 -20 28 35 0.45 -108 0 0 -20 38 50 19 12 46.3 4 245 46 -20 52 59 -20 24 42 -21 16 50 -20 0 59 0.47 -107 0 0 -20 11 11 19 12 47.0 3 245 47 -20 25 20 -19 57 4 -20 49 11 -19 33 22 0.51 -106 0 0 -19 43 32 19 12 47.6 2 245 47 -19 57 40 -19 29 25 -20 21 30 -19 5 43 0.59 -105 0 0 -19 15 52 19 12 47.8 1 244 47 -19 30 0 -19 1 45 -19 53 49 -18 38 5 0.94 Uncertainty in time = +/- 5 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: TYC 6412-00293-1 * constellation : Cetus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 00 01 01.4259 DE: -24 28 53.482 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 00 01 01.4261 DE: -24 28 53.482 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.500,0.400) * V mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3036) Krat asteroid class: approx. diameter [km]: 44 approx. diameter ["]: 0.024 distance from Earth [AU]: 2.47030 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#55 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): 0.028", 0.003", 44.115° remarks: * orbital elements for (3036)Krat : Mean anomaly = 346.0511139120 deg Arg. of pericenter = 320.2658174889 deg Long. of node = 23.6785937987 deg Inclination = 22.8931989941 deg Eccentricity = 0.1009141909 Semimajor axis = 3.2074678934 AU Perihelion dist = 2.8837888660 AU Mag: H = 10.57, G = 0.15 Epoch of elements : MJD 60122.79347222 TDT (2023 Jun 27.7935) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#552023Apr24,4.59,2023,6,27,19.038628,-0.006694,-0.336605,5.389652,-0.103624,-0.005085,-0.001778,0.000000,0.000001 159.3456,-24.3492,-104.79,23.31,False TYC 6412-00293-1,0.01706274,-24.4815230,0.00,11.64,0.00,0.0,0,,0.03704531,-24.3492103,4.20,0.00,0,0,0 3036,Krat,15.82,43.8,2.4703,0,0,1.404,-0.37,,2.4,0 0,345.9150,2023,6,27,320.2658,23.6786,22.8932,0.10091,3.20747,2.88379,10.55,5.0,0.15 1.841,0.0280,0.0027,44,0.0206,Known errors,-1.00,-1,-1,-1 20230627_0293-1,60063.20 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:45 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org