IOTA/IOTA-ES occultation update for (4493) Naitomitsu / TYC 6315-00960-1 event on 2024 Mar 12, 16:56 UT Visible from Summary ------- On 2024 Mar 12 UT, the 18.5219526167847 km diameter asteroid (4493) Naitomitsu will occult a 10.3 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 7.33 mag to 17.59 mag (the magnitude of the asteroid) for at most 0.530 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 Mar 12, 16:53 - 2024 Mar 12, 16:59 * geocentric midpoint of event [JD]: 2460382.20587446 * magnitude of target star: 10.26 * magnitude drop [mag]: 7.33 * estimated maximum duration [s]: 0.530 * Moon: 8 % sunlit, 82° distance * Sun: 50° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 19 * 1 sigma uncertainty interval [path widths]: +/- 0.33 * 1 sigma uncertainty interval [seconds]: +/- 1.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.013, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.002", 70°) * approx speed of asteroid's shadow [km/s]: 35.6573 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6315-00960-1 by 4493 Naitomitsu on 2024 Mar 12 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 143 0 0 -24 7 36 16 53 29.9 1 108 -47 -24 13 0 -24 2 13 -24 16 32 -23 58 41 .... 144 0 0 -24 25 15 16 53 29.9 1 107 -46 -24 30 38 -24 19 52 -24 34 9 -24 16 21 0.15 145 0 0 -24 42 32 16 53 30.0 2 107 -46 -24 47 54 -24 37 9 -24 51 25 -24 33 39 0.14 146 0 0 -24 59 27 16 53 30.2 3 107 -45 -25 4 49 -24 54 5 -25 8 20 -24 50 35 0.13 147 0 0 -25 16 1 16 53 30.4 4 106 -44 -25 21 22 -25 10 40 -25 24 53 -25 7 10 0.13 148 0 0 -25 32 13 16 53 30.6 5 106 -43 -25 37 34 -25 26 53 -25 41 4 -25 23 23 0.13 149 0 0 -25 48 4 16 53 30.9 6 105 -42 -25 53 24 -25 42 44 -25 56 53 -25 39 14 0.13 150 0 0 -26 3 32 16 53 31.3 7 105 -41 -26 8 52 -25 58 13 -26 12 21 -25 54 43 0.12 151 0 0 -26 18 38 16 53 31.7 8 104 -40 -26 23 57 -26 13 19 -26 27 26 -26 9 51 0.12 152 0 0 -26 33 23 16 53 32.1 9 104 -39 -26 38 41 -26 28 4 -26 42 10 -26 24 36 0.12 153 0 0 -26 47 45 16 53 32.6 10 104 -38 -26 53 3 -26 42 27 -26 56 31 -26 38 58 0.12 154 0 0 -27 1 44 16 53 33.1 11 103 -37 -27 7 2 -26 56 27 -27 10 30 -26 52 59 0.12 155 0 0 -27 15 21 16 53 33.7 12 103 -36 -27 20 38 -27 10 4 -27 24 6 -27 6 37 0.12 156 0 0 -27 28 36 16 53 34.3 13 102 -36 -27 33 53 -27 23 20 -27 37 20 -27 19 52 0.12 157 0 0 -27 41 28 16 53 34.9 14 102 -35 -27 46 44 -27 36 12 -27 50 11 -27 32 45 0.12 158 0 0 -27 53 58 16 53 35.6 15 101 -34 -27 59 14 -27 48 42 -28 2 40 -27 45 16 0.12 159 0 0 -28 6 5 16 53 36.4 15 101 -33 -28 11 20 -28 0 50 -28 14 46 -27 57 24 0.12 160 0 0 -28 17 49 16 53 37.2 16 100 -32 -28 23 4 -28 12 35 -28 26 30 -28 9 9 0.12 161 0 0 -28 29 11 16 53 38.0 17 100 -31 -28 34 25 -28 23 57 -28 37 51 -28 20 31 0.12 162 0 0 -28 40 10 16 53 38.8 18 99 -30 -28 45 24 -28 34 56 -28 48 49 -28 31 31 0.12 163 0 0 -28 50 46 16 53 39.8 19 99 -29 -28 56 0 -28 45 33 -28 59 25 -28 42 8 0.12 164 0 0 -29 1 0 16 53 40.7 20 98 -28 -29 6 13 -28 55 47 -29 9 37 -28 52 22 0.12 165 0 0 -29 10 50 16 53 41.7 21 98 -28 -29 16 3 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9 16 47 16 58 10.5 54 255 76 - 9 22 26 - 9 11 7 - 9 26 8 - 9 7 25 0.12 - 84 0 0 - 8 49 10 16 58 13.3 53 254 77 - 8 54 50 - 8 43 31 - 8 58 32 - 8 39 49 0.12 - 83 0 0 - 8 21 30 16 58 16.0 52 254 78 - 8 27 10 - 8 15 51 - 8 30 52 - 8 12 9 0.12 - 82 0 0 - 7 53 47 16 58 18.7 51 253 79 - 7 59 27 - 7 48 8 - 8 3 9 - 7 44 25 0.12 - 81 0 0 - 7 26 2 16 58 21.4 50 253 80 - 7 31 41 - 7 20 22 - 7 35 24 - 7 16 40 0.12 - 80 0 0 - 6 58 14 16 58 24.0 49 253 81 - 7 3 54 - 6 52 35 - 7 7 36 - 6 48 52 0.12 - 79 0 0 - 6 30 26 16 58 26.6 47 253 82 - 6 36 5 - 6 24 46 - 6 39 48 - 6 21 4 0.12 - 78 0 0 - 6 2 37 16 58 29.1 46 252 83 - 6 8 17 - 5 56 58 - 6 11 59 - 5 53 16 0.12 - 77 0 0 - 5 34 49 16 58 31.6 45 252 85 - 5 40 29 - 5 29 10 - 5 44 11 - 5 25 28 0.12 - 76 0 0 - 5 7 3 16 58 34.1 44 252 86 - 5 12 42 - 5 1 23 - 5 16 24 - 4 57 41 0.12 - 75 0 0 - 4 39 18 16 58 36.5 43 252 87 - 4 44 57 - 4 33 39 - 4 48 39 - 4 29 57 0.12 - 74 0 0 - 4 11 36 16 58 38.8 42 251 88 - 4 17 15 - 4 5 57 - 4 20 57 - 4 2 15 0.12 - 73 0 0 - 3 43 58 16 58 41.1 41 251 89 - 3 49 37 - 3 38 19 - 3 53 19 - 3 34 37 0.12 - 72 0 0 - 3 16 24 16 58 43.4 40 251 90 - 3 22 3 - 3 10 45 - 3 25 44 - 3 7 4 0.12 - 71 0 0 - 2 48 55 16 58 45.6 39 251 89 - 2 54 33 - 2 43 16 - 2 58 15 - 2 39 35 0.12 - 70 0 0 - 2 21 31 16 58 47.7 38 251 88 - 2 27 10 - 2 15 53 - 2 30 51 - 2 12 12 0.12 - 69 0 0 - 1 54 15 16 58 49.8 36 251 87 - 1 59 53 - 1 48 37 - 2 3 34 - 1 44 55 0.12 - 68 0 0 - 1 27 5 16 58 51.8 35 251 85 - 1 32 43 - 1 21 27 - 1 36 24 - 1 17 46 0.12 - 67 0 0 - 1 0 3 16 58 53.8 34 251 84 - 1 5 40 - 0 54 26 - 1 9 21 - 0 50 45 0.13 - 66 0 0 - 0 33 10 16 58 55.7 33 251 83 - 0 38 47 - 0 27 32 - 0 42 27 - 0 23 52 0.13 - 65 0 0 - 0 6 25 16 58 57.6 32 250 82 - 0 12 2 - 0 0 49 - 0 15 43 0 2 52 0.13 - 64 0 0 0 20 9 16 58 59.4 31 250 81 0 14 33 0 25 45 0 10 52 0 29 26 0.13 - 63 0 0 0 46 33 16 59 1.2 30 250 80 0 40 57 0 52 9 0 37 17 0 55 49 0.13 - 62 0 0 1 12 45 16 59 2.8 29 250 79 1 7 10 1 18 21 1 3 30 1 22 1 0.13 - 61 0 0 1 38 46 16 59 4.5 28 250 78 1 33 11 1 44 22 1 29 31 1 48 1 0.13 - 60 0 0 2 4 35 16 59 6.0 27 250 77 1 59 0 2 10 10 1 55 21 2 13 49 0.13 - 59 0 0 2 30 10 16 59 7.5 26 250 76 2 24 36 2 35 45 2 20 57 2 39 24 0.13 - 58 0 0 2 55 32 16 59 9.0 24 250 74 2 49 58 3 1 6 2 46 19 3 4 45 0.13 - 57 0 0 3 20 40 16 59 10.4 23 250 73 3 15 6 3 26 14 3 11 28 3 29 52 0.13 - 56 0 0 3 45 33 16 59 11.7 22 250 72 3 40 0 3 51 6 3 36 22 3 54 44 0.13 - 55 0 0 4 10 11 16 59 13.0 21 251 71 4 4 38 4 15 44 4 1 1 4 19 21 0.13 - 54 0 0 4 34 33 16 59 14.2 20 251 70 4 29 1 4 40 5 4 25 24 4 43 43 0.13 - 53 0 0 4 58 39 16 59 15.3 19 251 69 4 53 8 5 4 11 4 49 31 5 7 48 0.13 - 52 0 0 5 22 29 16 59 16.4 18 251 68 5 16 57 5 28 0 5 13 21 5 31 36 0.13 - 51 0 0 5 46 1 16 59 17.4 17 251 67 5 40 30 5 51 31 5 36 54 5 55 8 0.13 - 50 0 0 6 9 15 16 59 18.3 16 251 66 6 3 45 6 14 45 6 0 9 6 18 21 0.13 - 49 0 0 6 32 12 16 59 19.2 15 251 65 6 26 42 6 37 41 6 23 6 6 41 17 0.13 - 48 0 0 6 54 50 16 59 20.0 14 251 64 6 49 21 7 0 19 6 45 45 7 3 54 0.13 - 47 0 0 7 17 9 16 59 20.8 13 251 63 7 11 40 7 22 37 7 8 5 7 26 12 0.13 - 46 0 0 7 39 9 16 59 21.5 12 251 62 7 33 41 7 44 37 7 30 6 7 48 11 0.14 - 45 0 0 8 0 49 16 59 22.1 11 251 61 7 55 22 8 6 16 7 51 47 8 9 51 0.14 - 44 0 0 8 22 10 16 59 22.7 9 252 59 8 16 43 8 27 36 8 13 9 8 31 10 0.14 - 43 0 0 8 43 10 16 59 23.2 8 252 58 8 37 43 8 48 36 8 34 10 8 52 9 0.14 - 42 0 0 9 3 49 16 59 23.7 7 252 57 8 58 24 9 9 15 8 54 50 9 12 48 0.14 - 41 0 0 9 24 8 16 59 24.0 6 252 56 9 18 43 9 29 33 9 15 10 9 33 6 0.15 - 40 0 0 9 44 5 16 59 24.4 5 252 55 9 38 41 9 49 30 9 35 8 9 53 2 0.15 - 39 0 0 10 3 41 16 59 24.6 4 252 54 9 58 17 10 9 5 9 54 45 10 12 37 0.16 - 38 0 0 10 22 56 16 59 24.9 3 253 53 10 17 32 10 28 19 10 14 0 10 31 51 0.17 - 37 0 0 10 41 48 16 59 25.0 2 253 52 10 36 25 10 47 11 10 32 54 10 50 42 0.20 - 36 0 0 11 0 18 16 59 25.1 1 253 51 10 54 56 11 5 40 10 51 25 11 9 11 0.26 - 35 0 0 11 18 26 16 59 25.1 0 253 50 11 13 4 11 23 48 11 9 34 11 27 18 1.49 Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 14.2 Data for the target star ------------------------ * name: TYC 6315-00960-1 * constellation : Capricornus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 20 15 22.5706 DE: -16 33 37.099 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 20 15 22.5706 DE: -16 33 37.099 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 10.3 * B mag [mag]: 10.8 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4493) Naitomitsu asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.007 distance from Earth [AU]: 3.72340 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 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): 0.014", 0.002", 69.5° remarks: * orbital elements for (4493)Naitomitsu : Mean anomaly = 229.7643956106 deg Arg. of pericenter = 160.7061235424 deg Long. of node = 264.3849501451 deg Inclination = 9.0310324721 deg Eccentricity = 0.0746733756 Semimajor axis = 3.0226526917 AU Perihelion dist = 2.7969410118 AU Mag: H = 11.43, G = 0.15 Epoch of elements : MJD 60381.70587429 TDT (2024 Mar 12.7059) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr24,0.53,2024,3,12,16.940987,0.036564,-0.108545,19.104149,6.331313,-0.004495,-0.000817,-0.000001,0.000000 -120.7605,-16.4885,-71.73,-2.93,False TYC 6315-00960-1,20.25626956,-16.5603054,10.83,10.26,9.95,0.1,0,,20.27883565,-16.4884660,7.33,7.19,0,0,0 4493,Naitomitsu,17.59,18.792,3.7234,0,0,3.137,14.96,,1.2,0 0,229.6320,2024,3,12,160.7061,264.3850,9.0310,0.07467,3.02265,2.79694,11.43,5.0,0.15 1.327,0.0143,0.0022,70,0.0023,Known errors,0.97,0,-1,-1 20240312_0960-1,60139.23 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 05:29 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org