IOTA/IOTA-ES occultation update for (1466) Mundleria / TYC 171-01104-1 event on 2024 Dec 13, 18:31 UT Visible from Summary ------- On 2024 Dec 13 UT, the 21.5817329503914 km diameter asteroid (1466) Mundleria will occult a 9.6 mag star in the constellation Canis Minor for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 6.57 mag to 16.15 mag (the magnitude of the asteroid) for at most 2.200 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 Dec 13, 18:23 - 2024 Dec 13, 18:39 * geocentric midpoint of event [JD]: 2460658.27196446 * magnitude of target star: 9.58 * magnitude drop [mag]: 6.57 * estimated maximum duration [s]: 2.200 * Moon: 97 % sunlit, 51° distance * Sun: 149° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 30 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 2.5 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.003", 88°) * approx speed of asteroid's shadow [km/s]: 9.8551 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 171-01104-1 by 1466 Mundleria on 2024 Dec 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 20 0 0 -42 54 2 18 39 20.5 0 83 -5 -42 45 44 -43 2 21 -42 42 53 -43 5 14 .... 21 0 0 -42 48 23 18 39 20.4 1 82 -5 -42 40 5 -42 56 41 -42 37 13 -42 59 34 0.44 22 0 0 -42 42 45 18 39 20.2 2 81 -6 -42 34 28 -42 51 4 -42 31 36 -42 53 57 0.70 23 0 0 -42 37 10 18 39 19.8 2 81 -7 -42 28 52 -42 45 28 -42 26 0 -42 48 21 0.79 24 0 0 -42 31 36 18 39 19.3 3 80 -7 -42 23 19 -42 39 55 -42 20 27 -42 42 48 0.84 25 0 0 -42 26 5 18 39 18.6 4 79 -8 -42 17 48 -42 34 24 -42 14 56 -42 37 16 0.87 26 0 0 -42 20 36 18 39 17.7 4 79 -8 -42 12 19 -42 28 55 -42 9 27 -42 31 47 0.89 27 0 0 -42 15 10 18 39 16.8 5 78 -9 -42 6 52 -42 23 28 -42 4 1 -42 26 21 0.90 28 0 0 -42 9 46 18 39 15.6 6 77 -10 -42 1 28 -42 18 4 -41 58 37 -42 20 56 0.91 29 0 0 -42 4 24 18 39 14.3 7 77 -10 -41 56 7 -42 12 42 -41 53 16 -42 15 35 0.92 30 0 0 -41 59 6 18 39 12.9 7 76 -11 -41 50 49 -42 7 24 -41 47 57 -42 10 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0 -44 1 48 18 24 11.5 11 288 20 -43 53 30 -44 10 7 -43 50 38 -44 13 0 1.01 179 0 0 -44 7 35 18 24 9.4 10 288 20 -43 59 17 -44 15 54 -43 56 25 -44 18 47 1.01 180 0 0 -44 13 22 18 24 7.4 10 287 21 -44 5 4 -44 21 42 -44 2 13 -44 24 34 1.01 -179 0 0 -44 19 10 18 24 5.6 9 286 22 -44 10 52 -44 27 29 -44 8 0 -44 30 22 1.01 -178 0 0 -44 24 58 18 24 4.0 8 286 22 -44 16 40 -44 33 17 -44 13 48 -44 36 10 1.02 -177 0 0 -44 30 46 18 24 2.5 7 285 23 -44 22 28 -44 39 5 -44 19 36 -44 41 58 1.02 -176 0 0 -44 36 33 18 24 1.1 7 284 24 -44 28 15 -44 44 52 -44 25 23 -44 47 45 1.02 -175 0 0 -44 42 21 18 23 59.8 6 284 25 -44 34 3 -44 50 40 -44 31 11 -44 53 33 1.03 -174 0 0 -44 48 8 18 23 58.7 5 283 25 -44 39 50 -44 56 27 -44 36 58 -44 59 20 1.04 -173 0 0 -44 53 54 18 23 57.8 5 282 26 -44 45 36 -45 2 13 -44 42 44 -45 5 6 1.04 -172 0 0 -44 59 40 18 23 57.0 4 281 27 -44 51 22 -45 7 59 -44 48 30 -45 10 52 1.06 -171 0 0 -45 5 26 18 23 56.3 3 281 27 -44 57 8 -45 13 45 -44 54 16 -45 16 38 1.07 -170 0 0 -45 11 10 18 23 55.8 2 280 28 -45 2 52 -45 19 29 -45 0 0 -45 22 22 1.10 -169 0 0 -45 16 54 18 23 55.4 2 279 29 -45 8 36 -45 25 13 -45 5 44 -45 28 6 1.15 -168 0 0 -45 22 36 18 23 55.1 1 279 30 -45 14 18 -45 30 55 -45 11 26 -45 33 48 1.27 -167 0 0 -45 28 18 18 23 55.0 0 278 30 -45 20 0 -45 36 37 -45 17 8 -45 39 30 2.00 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 171-01104-1 * constellation : Canis Minor * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 09 38.6185 DE: +05 23 56.975 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 09 38.6186 DE: +05 23 56.975 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 9.6 * B mag [mag]: 10.1 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1466) Mundleria asteroid class: approx. diameter [km]: 22 approx. diameter ["]: 0.018 distance from Earth [AU]: 1.69960 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#54 date of fit: 2022 Nov 25 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): 0.020", 0.003", 88.068° remarks: * orbital elements for (1466)Mundleria : Mean anomaly = 241.6679746162 deg Arg. of pericenter = 75.3505272326 deg Long. of node = 154.8075719319 deg Inclination = 13.1378885855 deg Eccentricity = 0.1555589548 Semimajor axis = 2.3786414338 AU Perihelion dist = 2.0086224585 AU Mag: H = 12.23, G = 0.15 Epoch of elements : MJD 60657.77196600 TDT (2024 Dec 13.7720) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#542022Nov25,2.20,2024,12,13,18.527147,-0.015979,-0.696621,-5.561052,0.126984,-0.002357,0.001841,0.000001,0.000000 106.9080,5.3596,-99.27,-23.21,False TYC 171-01104-1,7.16072736,5.3991599,10.07,9.58,9.32,0.1,0,,7.18320308,5.3595726,6.57,6.39,0,0,0 1466,Mundleria,16.15,21.705,1.6996,0,0,-1.927,0.66,,1.2,0 0,241.4606,2024,12,13,75.3505,154.8076,13.1379,0.15556,2.37864,2.00862,12.23,5.0,0.15 1.173,0.0197,0.0028,88,0.0030,Known errors,1.05,0,-1,-1 20241213_1104-1,60140.74 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:43 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org