IOTA/IOTA-ES occultation update for (3911) Otomo / TYC 5703-03618-1 event on 2024 Nov 11, 17:10 UT Visible from Summary ------- On 2024 Nov 11 UT, the 17.501 km diameter asteroid (3911) Otomo will occult a 11.0 mag star in the constellation Scutum for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.31 mag to 17.35 mag (the magnitude of the asteroid) for at most 0.470 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: 98 * date and approx. time of event: 2024 Nov 11, 17:07 - 2024 Nov 11, 17:13 * geocentric midpoint of event [JD]: 2460626.21534713 * magnitude of target star: 11.04 * magnitude drop [mag]: 6.31 * estimated maximum duration [s]: 0.470 * Moon: 77 % sunlit, 74° distance * Sun: 50° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 18 * 1 sigma uncertainty interval [path widths]: +/- 0.35 * 1 sigma uncertainty interval [seconds]: +/- 0.9 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.014, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.014", 0.002", 84°) * approx speed of asteroid's shadow [km/s]: 37.0864 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5703-03618-1 by 3911 Otomo on 2024 Nov 11 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 -117 0 0 4 36 24 17 7 14.6 0 104 48 4 31 29 4 41 19 4 28 3 4 44 45 .... -116 0 0 4 21 10 17 7 14.7 1 104 49 4 16 15 4 26 5 4 12 49 4 29 31 0.01 -115 0 0 4 5 56 17 7 14.8 3 104 50 4 1 1 4 10 51 3 57 35 4 14 17 -0.03 -114 0 0 3 50 43 17 7 14.9 4 104 51 3 45 48 3 55 38 3 42 22 3 59 4 -0.04 -113 0 0 3 35 30 17 7 15.2 5 105 52 3 30 36 3 40 25 3 27 9 3 43 52 -0.05 -112 0 0 3 20 19 17 7 15.4 6 105 53 3 15 25 3 25 14 3 11 58 3 28 40 -0.06 -111 0 0 3 5 10 17 7 15.8 7 105 54 3 0 15 3 10 4 2 56 49 3 13 31 -0.06 -110 0 0 2 50 2 17 7 16.1 8 105 55 2 45 7 2 54 57 2 41 41 2 58 23 -0.06 -109 0 0 2 34 56 17 7 16.6 9 105 56 2 30 2 2 39 51 2 26 36 2 43 17 -0.07 -108 0 0 2 19 53 17 7 17.1 10 105 57 2 14 59 2 24 48 2 11 32 2 28 14 -0.07 -107 0 0 2 4 53 17 7 17.6 11 105 57 1 59 58 2 9 47 1 56 32 2 13 13 -0.07 -106 0 0 1 49 55 17 7 18.2 12 105 58 1 45 1 1 54 50 1 41 35 1 58 16 -0.07 -105 0 0 1 35 1 17 7 18.9 13 105 59 1 30 7 1 39 56 1 26 41 1 43 22 -0.07 -104 0 0 1 20 11 17 7 19.6 14 105 60 1 15 17 1 25 6 1 11 51 1 28 32 -0.07 -103 0 0 1 5 25 17 7 20.4 15 105 61 1 0 31 1 10 19 0 57 5 1 13 45 -0.07 -102 0 0 0 50 43 17 7 21.2 16 105 62 0 45 49 0 55 37 0 42 23 0 59 3 -0.07 -101 0 0 0 36 6 17 7 22.1 17 105 63 0 31 12 0 41 0 0 27 46 0 44 26 -0.07 -100 0 0 0 21 33 17 7 23.0 18 105 64 0 16 39 0 26 27 0 13 14 0 29 53 -0.07 - 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6 7 17 17 11 55.4 50 255 0 - 6 12 6 - 6 2 27 - 6 15 29 - 5 59 5 -0.08 11 0 0 - 5 57 32 17 11 57.8 49 255 -1 - 6 2 22 - 5 52 43 - 6 5 45 - 5 49 20 -0.08 12 0 0 - 5 47 35 17 12 0.1 48 255 -2 - 5 52 25 - 5 42 46 - 5 55 48 - 5 39 23 -0.08 13 0 0 - 5 37 26 17 12 2.3 47 255 -3 - 5 42 16 - 5 32 36 - 5 45 39 - 5 29 13 -0.08 14 0 0 - 5 27 5 17 12 4.5 46 255 -4 - 5 31 55 - 5 22 15 - 5 35 18 - 5 18 51 -0.08 15 0 0 - 5 16 31 17 12 6.7 45 255 -5 - 5 21 22 - 5 11 41 - 5 24 45 - 5 8 18 -0.08 16 0 0 - 5 5 46 17 12 8.9 44 255 -6 - 5 10 36 - 5 0 56 - 5 14 0 - 4 57 32 -0.08 17 0 0 - 4 54 49 17 12 11.0 43 255 -7 - 4 59 40 - 4 49 59 - 5 3 3 - 4 46 35 -0.08 18 0 0 - 4 43 41 17 12 13.1 42 255 -8 - 4 48 32 - 4 38 50 - 4 51 55 - 4 35 27 -0.08 19 0 0 - 4 32 22 17 12 15.1 41 255 -9 - 4 37 13 - 4 27 31 - 4 40 36 - 4 24 7 -0.08 20 0 0 - 4 20 51 17 12 17.1 40 255 -10 - 4 25 43 - 4 16 0 - 4 29 6 - 4 12 37 -0.08 21 0 0 - 4 9 10 17 12 19.1 39 255 -11 - 4 14 2 - 4 4 19 - 4 17 25 - 4 0 55 -0.08 22 0 0 - 3 57 19 17 12 21.0 38 255 -12 - 4 2 10 - 3 52 27 - 4 5 34 - 3 49 3 -0.08 23 0 0 - 3 45 17 17 12 22.9 37 255 -13 - 3 50 8 - 3 40 25 - 3 53 32 - 3 37 1 -0.08 24 0 0 - 3 33 5 17 12 24.7 36 255 -14 - 3 37 57 - 3 28 13 - 3 41 21 - 3 24 49 -0.08 25 0 0 - 3 20 43 17 12 26.5 35 255 -15 - 3 25 35 - 3 15 51 - 3 28 59 - 3 12 27 -0.08 26 0 0 - 3 8 11 17 12 28.2 34 255 -16 - 3 13 3 - 3 3 19 - 3 16 28 - 2 59 55 -0.08 27 0 0 - 2 55 30 17 12 29.9 33 255 -17 - 3 0 23 - 2 50 38 - 3 3 47 - 2 47 14 -0.08 28 0 0 - 2 42 40 17 12 31.6 32 255 -18 - 2 47 33 - 2 37 48 - 2 50 57 - 2 34 23 -0.08 29 0 0 - 2 29 41 17 12 33.2 31 255 -19 - 2 34 34 - 2 24 49 - 2 37 58 - 2 21 24 -0.08 30 0 0 - 2 16 34 17 12 34.7 30 255 -20 - 2 21 26 - 2 11 41 - 2 24 51 - 2 8 16 -0.08 31 0 0 - 2 3 18 17 12 36.2 29 255 -21 - 2 8 10 - 1 58 25 - 2 11 35 - 1 55 0 -0.08 32 0 0 - 1 49 53 17 12 37.7 28 255 -22 - 1 54 46 - 1 45 0 - 1 58 11 - 1 41 35 -0.08 33 0 0 - 1 36 21 17 12 39.1 27 255 -23 - 1 41 14 - 1 31 28 - 1 44 39 - 1 28 3 -0.08 34 0 0 - 1 22 41 17 12 40.5 26 255 -24 - 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1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.014", 0.002", 83.586° remarks: * orbital elements for (3911)Otomo : Mean anomaly = 317.8550923206 deg Arg. of pericenter = 134.5223154071 deg Long. of node = 210.2635015645 deg Inclination = 10.7277683770 deg Eccentricity = 0.0940056460 Semimajor axis = 3.0399447774 AU Perihelion dist = 2.7541728049 AU Mag: H = 11.59, G = 0.15 Epoch of elements : MJD 60625.71534692 TDT (2024 Nov 11.7153) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Apr24,0.47,2024,11,11,17.168331,0.000108,0.084139,20.932615,-0.002543,0.004395,0.000894,-0.000001,0.000000 -29.3400,-14.1511,-81.50,-17.69,False TYC 5703-03618-1,18.61149956,-14.1714875,11.50,11.04,10.79,0.0,0,,18.63472877,-14.1511252,6.31,6.11,0,0,0 3911,Otomo,17.35,17.501,3.3726,0,0,3.753,0.00,,2.2,0 0,317.7221,2024,11,11,134.5223,210.2635,10.7278,0.09401,3.03994,2.75417,11.59,5.0,0.15 1.350,0.0143,0.0020,84,0.0025,Known errors,0.69,0,-1,-1 20241111_3618-1,60140.69 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org