IOTA/IOTA-ES occultation update for (2361) Gogol / TYC 1862-01726-1 event on 2024 Sep 13, 10:16 UT Visible from Summary ------- On 2024 Sep 13 UT, the 22.393 km diameter asteroid (2361) Gogol will occult a 9.3 mag star in the constellation Taurus for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 8.48 mag to 17.78 mag (the magnitude of the asteroid) for at most 1.090 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 Sep 13, 10:11 - 2024 Sep 13, 10:21 * geocentric midpoint of event [JD]: 2460566.92812513 * magnitude of target star: 9.30 * magnitude drop [mag]: 8.48 * estimated maximum duration [s]: 1.090 * Moon: 73 % sunlit, 159° distance * Sun: 84° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 25 * 1 sigma uncertainty interval [path widths]: +/- 0.29 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.022, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.022", 0.003", 87°) * approx speed of asteroid's shadow [km/s]: 20.5800 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1862-01726-1 by 2361 Gogol on 2024 Sep 13 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 -134 0 0 -28 22 30 10 11 57.5 1 62 -59 -28 30 15 -28 14 45 -28 34 48 -28 10 13 .... -133 0 0 -27 54 38 10 11 57.6 2 62 -58 -28 2 23 -27 46 53 -28 6 56 -27 42 21 0.24 -132 0 0 -27 26 43 10 11 57.8 3 61 -58 -27 34 28 -27 18 59 -27 39 1 -27 14 27 0.35 -131 0 0 -26 58 47 10 11 58.2 4 61 -58 -27 6 32 -26 51 3 -27 11 4 -26 46 31 0.40 -130 0 0 -26 30 49 10 11 58.6 5 60 -58 -26 38 34 -26 23 5 -26 43 6 -26 18 34 0.43 -129 0 0 -26 2 51 10 11 59.1 6 60 -57 -26 10 35 -25 55 8 -26 15 7 -25 50 36 0.45 -128 0 0 -25 34 53 10 11 59.8 7 59 -57 -25 42 37 -25 27 10 -25 47 9 -25 22 39 0.46 -127 0 0 -25 6 57 10 12 0.5 8 59 -56 -25 14 40 -24 59 14 -25 19 12 -24 54 43 0.47 -126 0 0 -24 39 2 10 12 1.4 9 59 -56 -24 46 45 -24 31 20 -24 51 16 -24 26 50 0.48 -125 0 0 -24 11 10 10 12 2.4 10 58 -55 -24 18 53 -24 3 29 -24 23 24 -23 58 59 0.48 -124 0 0 -23 43 22 10 12 3.5 11 58 -55 -23 51 4 -23 35 41 -23 55 35 -23 31 11 0.49 -123 0 0 -23 15 38 10 12 4.7 12 57 -54 -23 23 19 -23 7 58 -23 27 50 -23 3 28 0.49 -122 0 0 -22 48 0 10 12 6.1 13 57 -53 -22 55 40 -22 40 20 -23 0 10 -22 35 51 0.49 -121 0 0 -22 20 27 10 12 7.5 14 56 -53 -22 28 7 -22 12 48 -22 32 37 -22 8 19 0.50 -120 0 0 -21 53 2 10 12 9.1 15 56 -52 -22 0 41 -21 45 23 -22 5 10 -21 40 55 0.50 -119 0 0 -21 25 44 10 12 10.8 16 56 -52 -21 33 22 -21 18 6 -21 37 51 -21 13 38 0.50 -118 0 0 -20 58 34 10 12 12.5 17 55 -51 -21 6 12 -20 50 57 -21 10 40 -20 46 29 0.50 -117 0 0 -20 31 34 10 12 14.4 18 55 -50 -20 39 11 -20 23 57 -20 43 39 -20 19 30 0.51 -116 0 0 -20 4 43 10 12 16.5 19 54 -49 -20 12 19 -19 57 7 -20 16 47 -19 52 41 0.51 -115 0 0 -19 38 3 10 12 18.6 20 54 -49 -19 45 39 -19 30 28 -19 50 6 -19 26 2 0.51 -114 0 0 -19 11 35 10 12 20.8 21 54 -48 -19 19 10 -19 4 1 -19 23 37 -18 59 35 0.51 -113 0 0 -18 45 19 10 12 23.2 22 53 -47 -18 52 53 -18 37 46 -18 57 20 -18 33 21 0.51 -112 0 0 -18 19 16 10 12 25.7 23 53 -46 -18 26 50 -18 11 44 -18 31 15 -18 7 19 0.51 -111 0 0 -17 53 27 10 12 28.2 24 52 -45 -18 1 0 -17 45 56 -18 5 25 -17 41 31 0.51 -110 0 0 -17 27 52 10 12 30.9 25 52 -45 -17 35 24 -17 20 22 -17 39 49 -17 15 58 0.51 -109 0 0 -17 2 33 10 12 33.7 26 51 -44 -17 10 3 -16 55 3 -17 14 28 -16 50 39 0.52 -108 0 0 -16 37 29 10 12 36.6 27 51 -43 -16 44 59 -16 30 0 -16 49 22 -16 25 37 0.52 -107 0 0 -16 12 42 10 12 39.6 28 51 -42 -16 20 10 -16 5 13 -16 24 34 -16 0 51 0.52 -106 0 0 -15 48 11 10 12 42.7 29 50 -41 -15 55 39 -15 40 44 -16 0 2 -15 36 22 0.52 -105 0 0 -15 23 59 10 12 45.9 30 50 -40 -15 31 26 -15 16 32 -15 35 48 -15 12 11 0.52 -104 0 0 -15 0 5 10 12 49.2 31 49 -39 -15 7 31 -14 52 39 -15 11 52 -14 48 18 0.52 -103 0 0 -14 36 30 10 12 52.6 32 49 -38 -14 43 55 -14 29 5 -14 48 16 -14 24 45 0.52 -102 0 0 -14 13 14 10 12 56.1 33 48 -37 -14 20 38 -14 5 50 -14 24 59 -14 1 31 0.52 -101 0 0 -13 50 19 10 12 59.6 34 48 -36 -13 57 42 -13 42 56 -14 2 2 -13 38 37 0.52 -100 0 0 -13 27 44 10 13 3.3 35 47 -35 -13 35 6 -13 20 22 -13 39 26 -13 16 3 0.52 - 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1 0 0 -14 43 22 10 20 41.4 20 303 59 -14 50 47 -14 35 58 -14 55 8 -14 31 38 0.54 0 0 0 -15 6 56 10 20 43.6 19 303 60 -15 14 21 -14 59 30 -15 18 43 -14 55 10 0.54 1 0 0 -15 30 48 10 20 45.6 18 302 61 -15 38 14 -15 23 22 -15 42 36 -15 19 0 0.54 2 0 0 -15 54 58 10 20 47.5 17 302 61 -16 2 25 -15 47 31 -16 6 48 -15 43 9 0.54 3 0 0 -16 19 25 10 20 49.3 16 302 62 -16 26 54 -16 11 57 -16 31 17 -16 7 35 0.54 4 0 0 -16 44 9 10 20 51.0 15 301 62 -16 51 39 -16 36 40 -16 56 2 -16 32 18 0.54 5 0 0 -17 9 9 10 20 52.6 14 301 62 -17 16 40 -17 1 40 -17 21 4 -16 57 17 0.54 6 0 0 -17 34 25 10 20 54.1 13 301 63 -17 41 56 -17 26 54 -17 46 21 -17 22 31 0.54 7 0 0 -17 59 55 10 20 55.5 12 300 63 -18 7 27 -17 52 24 -18 11 52 -17 48 0 0.54 8 0 0 -18 25 40 10 20 56.7 11 300 63 -18 33 12 -18 18 7 -18 37 38 -18 13 43 0.54 9 0 0 -18 51 37 10 20 57.8 10 300 63 -18 59 11 -18 44 4 -19 3 37 -18 39 39 0.54 10 0 0 -19 17 47 10 20 58.8 9 299 64 -19 25 22 -19 10 14 -19 29 48 -19 5 48 0.54 11 0 0 -19 44 10 10 20 59.7 8 299 64 -19 51 45 -19 36 35 -19 56 12 -19 32 9 0.54 12 0 0 -20 10 43 10 21 0.5 6 299 64 -20 18 19 -20 3 8 -20 22 46 -19 58 41 0.55 13 0 0 -20 37 27 10 21 1.2 5 298 64 -20 45 3 -20 29 51 -20 49 31 -20 25 24 0.55 14 0 0 -21 4 20 10 21 1.7 4 298 64 -21 11 57 -20 56 43 -21 16 26 -20 52 16 0.55 15 0 0 -21 31 22 10 21 2.1 3 298 64 -21 39 1 -21 23 45 -21 43 29 -21 19 17 0.56 16 0 0 -21 58 33 10 21 2.4 2 297 63 -22 6 12 -21 50 55 -22 10 41 -21 46 27 0.57 17 0 0 -22 25 51 10 21 2.6 1 297 63 -22 33 30 -22 18 12 -22 38 0 -22 13 43 0.61 18 0 0 -22 53 15 10 21 2.7 0 296 63 -23 0 55 -22 45 36 -23 5 25 -22 41 7 0.87 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1862-01726-1 * constellation : Taurus * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 05 47 47.4317 DE: +24 04 53.969 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 05 47 47.4319 DE: +24 04 53.969 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 9.3 * B mag [mag]: 9.3 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (2361) Gogol asteroid class: approx. diameter [km]: 22 approx. diameter ["]: 0.011 distance from Earth [AU]: 2.81730 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#47 date of fit: 2023 Feb 11 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): 0.022", 0.003", 87.328° remarks: * orbital elements for (2361)Gogol : Mean anomaly = 313.3613698396 deg Arg. of pericenter = 83.5549510975 deg Long. of node = 42.9937889141 deg Inclination = 1.6172910153 deg Eccentricity = 0.1385044622 Semimajor axis = 3.1458352924 AU Perihelion dist = 2.7101230670 AU Mag: H = 12.22, G = 0.15 Epoch of elements : MJD 60566.42812479 TDT (2024 Sep 13.4281) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#472023Feb11,1.09,2024,9,13,10.275003,0.025710,-0.473673,11.598649,0.633634,-0.005651,-0.000095,0.000000,0.000000 -59.7006,24.0911,24.82,3.52,False TYC 1862-01726-1,5.79650879,24.0816579,9.34,9.30,9.28,0.0,0,,5.82161958,24.0910686,8.48,8.05,0,0,0 2361,Gogol,17.78,22.393,2.8173,0,0,2.645,1.98,,1.8,0 0,313.2857,2024,9,13,83.5550,42.9938,1.6173,0.13850,3.14584,2.71012,12.22,5.0,0.15 1.293,0.0220,0.0032,87,0.0032,Known errors,1.11,0,-1,-1 20240913_1726-1,60140.56 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 13:25 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org