IOTA/IOTA-ES occultation update for (5014) Gorchakov / UCAC4 332-126092 event on 2024 Oct 22, 08:02 UT Visible from Summary ------- On 2024 Oct 22 UT, the 19.959 km diameter asteroid (5014) Gorchakov will occult a 11.7 mag star in the constellation Sagittarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.87 mag to 17.61 mag (the magnitude of the asteroid) for at most 0.580 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 Oct 22, 07:59 - 2024 Oct 22, 08:05 * geocentric midpoint of event [JD]: 2460605.83522013 * magnitude of target star: 11.74 * magnitude drop [mag]: 5.87 * estimated maximum duration [s]: 0.580 * Moon: 71 % sunlit, 173° distance * Sun: 61° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 21 * 1 sigma uncertainty interval [path widths]: +/- 0.30 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.023, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.003", 93°) * approx speed of asteroid's shadow [km/s]: 34.5561 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 332-126092 by 5014 Gorchakov on 2024 Oct 22 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 36 0 0 15 37 35 7 59 45.4 0 115 57 15 31 24 15 43 45 15 27 39 15 47 30 .... 37 0 0 15 10 57 7 59 45.4 1 115 58 15 4 46 15 17 7 15 1 1 15 20 52 -0.03 38 0 0 14 44 18 7 59 45.5 2 115 58 14 38 7 14 50 28 14 34 23 14 54 13 -0.14 39 0 0 14 17 39 7 59 45.7 3 115 59 14 11 28 14 23 49 14 7 44 14 27 34 -0.19 40 0 0 13 51 0 7 59 45.9 4 116 60 13 44 50 13 57 10 13 41 5 14 0 55 -0.21 41 0 0 13 24 23 7 59 46.2 5 116 61 13 18 13 13 30 33 13 14 28 13 34 18 -0.22 42 0 0 12 57 47 7 59 46.6 7 116 62 12 51 37 13 3 57 12 47 53 13 7 42 -0.23 43 0 0 12 31 14 7 59 47.0 8 116 63 12 25 4 12 37 24 12 21 20 12 41 8 -0.24 44 0 0 12 4 44 7 59 47.5 9 117 64 11 58 35 12 10 54 11 54 51 12 14 38 -0.24 45 0 0 11 38 18 7 59 48.1 10 117 65 11 32 9 11 44 28 11 28 25 11 48 12 -0.25 46 0 0 11 11 57 7 59 48.7 11 117 65 11 5 49 11 18 6 11 2 5 11 21 50 -0.25 47 0 0 10 45 41 7 59 49.5 12 117 66 10 39 33 10 51 50 10 35 49 10 55 34 -0.25 48 0 0 10 19 32 7 59 50.2 13 117 67 10 13 24 10 25 40 10 9 40 10 29 24 -0.25 49 0 0 9 53 29 7 59 51.1 14 118 68 9 47 21 9 59 37 9 43 38 10 3 20 -0.26 50 0 0 9 27 33 7 59 52.0 15 118 68 9 21 26 9 33 41 9 17 43 9 37 24 -0.26 51 0 0 9 1 46 7 59 53.0 16 118 69 8 55 38 9 7 53 8 51 56 9 11 36 -0.26 52 0 0 8 36 7 7 59 54.0 17 118 70 8 30 0 8 42 14 8 26 18 8 45 56 -0.26 53 0 0 8 10 37 7 59 55.1 18 118 70 8 4 31 8 16 44 8 0 49 8 20 26 -0.26 54 0 0 7 45 18 7 59 56.3 19 118 71 7 39 12 7 51 24 7 35 30 7 55 6 -0.26 55 0 0 7 20 9 7 59 57.5 20 119 71 7 14 4 7 26 15 7 10 22 7 29 57 -0.26 56 0 0 6 55 12 7 59 58.8 22 119 72 6 49 7 7 1 17 6 45 25 7 4 58 -0.26 57 0 0 6 30 26 8 0 0.2 23 119 72 6 24 22 6 36 31 6 20 40 6 40 12 -0.27 58 0 0 6 5 53 8 0 1.6 24 119 73 5 59 49 6 11 57 5 56 8 6 15 38 -0.27 59 0 0 5 41 33 8 0 3.1 25 119 73 5 35 30 5 47 37 5 31 49 5 51 18 -0.27 60 0 0 5 17 27 8 0 4.6 26 119 73 5 11 24 5 23 30 5 7 44 5 27 11 -0.27 61 0 0 4 53 35 8 0 6.2 27 120 73 4 47 32 4 59 37 4 43 52 5 3 18 -0.27 62 0 0 4 29 58 8 0 7.9 28 120 73 4 23 56 4 36 0 4 20 16 4 39 40 -0.27 63 0 0 4 6 36 8 0 9.6 29 120 73 4 0 35 4 12 37 3 56 55 4 16 17 -0.27 64 0 0 3 43 30 8 0 11.4 30 120 73 3 37 29 3 49 31 3 33 50 3 53 10 -0.27 65 0 0 3 20 41 8 0 13.2 31 120 73 3 14 40 3 26 41 3 11 2 3 30 20 -0.27 66 0 0 2 58 8 8 0 15.1 32 120 73 2 52 8 3 4 8 2 48 30 3 7 46 -0.27 67 0 0 2 35 53 8 0 17.0 33 121 72 2 29 54 2 41 52 2 26 16 2 45 30 -0.27 68 0 0 2 13 55 8 0 19.0 34 121 72 2 7 57 2 19 54 2 4 19 2 23 32 -0.27 69 0 0 1 52 16 8 0 21.1 35 121 72 1 46 18 1 58 15 1 42 41 2 1 52 -0.27 70 0 0 1 30 56 8 0 23.2 36 121 71 1 24 59 1 36 54 1 21 22 1 40 31 -0.27 71 0 0 1 9 55 8 0 25.3 37 121 71 1 3 58 1 15 52 1 0 22 1 19 29 -0.27 72 0 0 0 49 14 8 0 27.5 39 122 70 0 43 17 0 55 10 0 39 41 0 58 46 -0.27 73 0 0 0 28 52 8 0 29.7 40 122 69 0 22 56 0 34 48 0 19 21 0 38 24 -0.27 74 0 0 0 8 51 8 0 32.0 41 122 69 0 2 56 0 14 46 - 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1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.023", 0.003", 92.917° remarks: * orbital elements for (5014)Gorchakov : Mean anomaly = 356.9727820827 deg Arg. of pericenter = 190.1288624743 deg Long. of node = 104.9717727998 deg Inclination = 2.3599446529 deg Eccentricity = 0.2219386952 Semimajor axis = 3.1780563825 AU Perihelion dist = 2.4727226958 AU Mag: H = 12.40, G = 0.15 Epoch of elements : MJD 60605.33521984 TDT (2024 Oct 22.3352) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542023Apr25,0.58,2024,10,22,8.045283,0.006471,0.271342,19.499432,-0.442008,0.004960,-0.000011,-0.000001,0.000000 118.1207,-23.6318,55.43,-11.27,False UCAC4 332-126092,17.97826155,-23.6289061,12.18,11.74,11.50,0.0,0,,18.00321541,-23.6318207,5.88,5.67,0,0,0 5014,Gorchakov,17.61,19.959,2.8054,0,0,4.449,-1.38,,1.8,0 0,356.9145,2024,10,22,190.1289,104.9718,2.3599,0.22194,3.17806,2.47272,12.39,5.0,0.15 1.304,0.0227,0.0029,93,0.0030,Known errors,0.73,0,-1,-1 20241022_126092,60140.65 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 15:38 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org