IOTA/IOTA-ES occultation update for (3429) Chuvaev / TYC 5241-01044-1 event on 2024 Nov 18, 21:49 UT Visible from Summary ------- On 2024 Nov 18 UT, the 9.23 km diameter asteroid (3429) Chuvaev will occult a 11.4 mag star in the constellation Aquarius for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.16 mag to 17.58 mag (the magnitude of the asteroid) for at most 0.700 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 Nov 18, 21:43 - 2024 Nov 18, 21:55 * geocentric midpoint of event [JD]: 2460633.40935804 * magnitude of target star: 11.42 * magnitude drop [mag]: 6.16 * estimated maximum duration [s]: 0.700 * Moon: 87 % sunlit, 115° distance * Sun: 106° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.18 * 1 sigma uncertainty interval [seconds]: +/- 2.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.031, +/- 0.012) * 1 sigma uncertainty ellipse (major, minor, PA): (0.033", 0.002", 69°) * approx speed of asteroid's shadow [km/s]: 13.1209 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 5241-01044-1 by 3429 Chuvaev on 2024 Nov 18 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 -145 0 0 -65 46 12 21 43 50.5 0 107 44 -65 49 56 -65 42 27 -65 51 17 -65 41 7 .... -144 0 0 -65 53 34 21 43 50.5 1 106 43 -65 57 18 -65 49 50 -65 58 38 -65 48 30 0.87 -143 0 0 -66 0 41 21 43 50.6 1 105 43 -66 4 24 -65 56 57 -66 5 44 -65 55 38 0.93 -142 0 0 -66 7 33 21 43 50.7 2 104 43 -66 11 16 -66 3 50 -66 12 35 -66 2 30 0.96 -141 0 0 -66 14 10 21 43 50.9 2 103 43 -66 17 52 -66 10 27 -66 19 12 -66 9 8 0.97 -140 0 0 -66 20 32 21 43 51.1 2 102 43 -66 24 14 -66 16 50 -66 25 33 -66 15 31 0.98 -139 0 0 -66 26 39 21 43 51.3 3 101 43 -66 30 21 -66 22 58 -66 31 40 -66 21 39 0.99 -138 0 0 -66 32 32 21 43 51.6 3 100 42 -66 36 13 -66 28 52 -66 37 32 -66 27 33 0.99 -137 0 0 -66 38 11 21 43 51.9 4 99 42 -66 41 52 -66 34 31 -66 43 10 -66 33 12 1.00 -136 0 0 -66 43 35 21 43 52.2 4 98 42 -66 47 15 -66 39 56 -66 48 34 -66 38 37 1.00 -135 0 0 -66 48 45 21 43 52.6 4 97 42 -66 52 25 -66 45 6 -66 53 43 -66 43 48 1.00 -134 0 0 -66 53 42 21 43 53.0 5 96 42 -66 57 21 -66 50 3 -66 58 39 -66 48 45 1.00 -133 0 0 -66 58 24 21 43 53.5 5 96 41 -67 2 2 -66 54 45 -67 3 20 -66 53 27 1.01 -132 0 0 -67 2 52 21 43 53.9 6 95 41 -67 6 30 -66 59 14 -67 7 48 -66 57 56 1.01 -131 0 0 -67 7 6 21 43 54.4 6 94 41 -67 10 44 -67 3 28 -67 12 2 -67 2 11 1.01 -130 0 0 -67 11 7 21 43 54.9 6 93 41 -67 14 44 -67 7 29 -67 16 2 -67 6 12 1.01 -129 0 0 -67 14 54 21 43 55.5 7 92 40 -67 18 31 -67 11 17 -67 19 49 -67 10 0 1.01 -128 0 0 -67 18 28 21 43 56.1 7 91 40 -67 22 5 -67 14 51 -67 23 22 -67 13 34 1.01 -127 0 0 -67 21 48 21 43 56.7 8 90 40 -67 25 24 -67 18 11 -67 26 42 -67 16 54 1.01 -126 0 0 -67 24 55 21 43 57.4 8 89 40 -67 28 31 -67 21 19 -67 29 48 -67 20 1 1.01 -125 0 0 -67 27 48 21 43 58.0 8 88 40 -67 31 24 -67 24 12 -67 32 42 -67 22 55 1.01 -124 0 0 -67 30 29 21 43 58.7 9 87 39 -67 34 4 -67 26 53 -67 35 22 -67 25 36 1.01 -123 0 0 -67 32 56 21 43 59.5 9 86 39 -67 36 31 -67 29 21 -67 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46 -27 44 17 -27 53 7 -27 42 57 1.08 36 0 0 -27 33 13 21 54 49.2 13 269 -42 -27 36 57 -27 29 28 -27 38 17 -27 28 9 1.08 37 0 0 -27 18 52 21 54 51.7 12 268 -42 -27 22 36 -27 15 8 -27 23 56 -27 13 49 1.08 38 0 0 -27 5 0 21 54 54.1 11 268 -42 -27 8 43 -27 1 17 -27 10 3 -26 59 57 1.09 39 0 0 -26 51 37 21 54 56.2 10 267 -42 -26 55 19 -26 47 54 -26 56 39 -26 46 35 1.09 40 0 0 -26 38 42 21 54 58.2 10 267 -42 -26 42 24 -26 35 0 -26 43 44 -26 33 41 1.09 41 0 0 -26 26 17 21 55 0.0 9 266 -42 -26 29 59 -26 22 35 -26 31 18 -26 21 16 1.10 42 0 0 -26 14 21 21 55 1.6 8 266 -42 -26 18 2 -26 10 40 -26 19 21 -26 9 21 1.11 43 0 0 -26 2 54 21 55 3.0 7 265 -42 -26 6 35 -25 59 14 -26 7 54 -25 57 55 1.12 44 0 0 -25 51 57 21 55 4.3 6 265 -42 -25 55 38 -25 48 17 -25 56 57 -25 46 59 1.13 45 0 0 -25 41 30 21 55 5.3 5 265 -42 -25 45 10 -25 37 50 -25 46 29 -25 36 32 1.15 46 0 0 -25 31 33 21 55 6.2 4 264 -42 -25 35 12 -25 27 54 -25 36 31 -25 26 35 1.17 47 0 0 -25 22 5 21 55 6.9 3 264 -41 -25 25 45 -25 18 27 -25 27 3 -25 17 9 1.21 48 0 0 -25 13 8 21 55 7.5 2 263 -41 -25 16 47 -25 9 30 -25 18 5 -25 8 12 1.28 49 0 0 -25 4 41 21 55 7.8 1 263 -41 -25 8 20 -25 1 3 -25 9 38 -24 59 45 1.44 50 0 0 -24 56 44 21 55 8.0 0 262 -41 -25 0 22 -24 53 6 -25 1 40 -24 51 49 2.33 Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 5241-01044-1 * constellation : Aquarius * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 22 56 20.7786 DE: -07 10 01.413 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 22 56 20.7785 DE: -07 10 01.414 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.200) * V mag [mag]: 11.4 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3429) Chuvaev asteroid class: approx. diameter [km]: 9 approx. diameter ["]: 0.009 distance from Earth [AU]: 1.41280 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#42 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): 0.033", 0.002", 69.253° remarks: * orbital elements for (3429)Chuvaev : Mean anomaly = 19.2521356323 deg Arg. of pericenter = 163.0434313813 deg Long. of node = 180.6155896386 deg Inclination = 1.3341386489 deg Eccentricity = 0.1893014385 Semimajor axis = 2.3388260836 AU Perihelion dist = 1.8960829416 AU Mag: H = 14.11, G = 0.15 Epoch of elements : MJD 60632.90935817 TDT (2024 Nov 18.9094) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#422023Apr24,0.70,2024,11,18,21.824593,0.252971,-0.668531,6.926828,2.620047,0.004716,0.001963,0.000000,0.000000 -41.3845,-7.0341,-151.03,-19.50,False TYC 5241-01044-1,22.93910519,-7.1670590,11.77,11.42,11.23,0.0,0,,22.96074617,-7.0340883,6.16,5.90,0,0,0 3429,Chuvaev,17.58,9.230,1.4128,0,0,2.897,16.32,,0.6,0 0,19.0016,2024,11,18,163.0434,180.6156,1.3341,0.18930,2.33883,1.89608,14.11,5.0,0.15 1.178,0.0330,0.0016,69,0.0016,Known errors,0.81,0,-1,-1 20241118_1044-1,60140.70 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 16:54 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org