IOTA/IOTA-ES occultation update for (4337) Arecibo / TYC 1914-00551-1 event on 2024 Dec 08, 02:32 UT Visible from Summary ------- On 2024 Dec 08 UT, the 19.2109743817217 km diameter asteroid (4337) Arecibo will occult a 10.3 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 7.55 mag to 17.85 mag (the magnitude of the asteroid) for at most 1.990 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 08, 02:23 - 2024 Dec 08, 02:42 * geocentric midpoint of event [JD]: 2460652.60621229 * magnitude of target star: 10.30 * magnitude drop [mag]: 7.55 * estimated maximum duration [s]: 1.990 * Moon: 43 % sunlit, 131° distance * Sun: 146° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 23 * 1 sigma uncertainty interval [path widths]: +/- 0.31 * 1 sigma uncertainty interval [seconds]: +/- 5.0 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.004) * 1 sigma uncertainty ellipse (major, minor, PA): (0.026", 0.001", 98°) * approx speed of asteroid's shadow [km/s]: 9.7637 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1914-00551-1 by 4337 Arecibo on 2024 Dec 8 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 - 87 0 0 -17 17 13 2 42 2.1 0 64 -31 -17 10 9 -17 24 16 -17 5 50 -17 28 37 .... - 86 0 0 -16 49 55 2 42 1.9 1 64 -32 -16 42 54 -16 56 58 -16 38 35 -17 1 17 0.32 - 85 0 0 -16 23 6 2 42 1.4 3 64 -33 -16 16 6 -16 30 7 -16 11 49 -16 34 25 0.47 - 84 0 0 -15 56 46 2 42 0.6 4 63 -34 -15 49 47 -16 3 45 -15 45 30 -16 8 2 0.53 - 83 0 0 -15 30 54 2 41 59.6 5 63 -35 -15 23 57 -15 37 51 -15 19 41 -15 42 8 0.57 - 82 0 0 -15 5 31 2 41 58.3 6 63 -36 -14 58 36 -15 12 27 -14 54 21 -15 16 43 0.59 - 81 0 0 -14 40 38 2 41 56.8 7 63 -37 -14 33 44 -14 47 33 -14 29 31 -14 51 48 0.60 - 80 0 0 -14 16 16 2 41 55.0 8 62 -38 -14 9 23 -14 23 9 -14 5 10 -14 27 23 0.61 - 79 0 0 -13 52 24 2 41 53.0 9 62 -39 -13 45 33 -13 59 15 -13 41 20 -14 3 28 0.62 - 78 0 0 -13 29 2 2 41 50.7 10 62 -40 -13 22 13 -13 35 52 -13 18 1 -13 40 5 0.63 - 77 0 0 -13 6 12 2 41 48.2 11 62 -41 -12 59 23 -13 13 1 -12 55 13 -13 17 12 0.63 - 76 0 0 -12 43 52 2 41 45.4 12 61 -42 -12 37 5 -12 50 40 -12 32 56 -12 54 50 0.64 - 75 0 0 -12 22 5 2 41 42.4 13 61 -43 -12 15 19 -12 28 51 -12 11 11 -12 33 1 0.64 - 74 0 0 -12 0 49 2 41 39.1 14 61 -44 -11 54 5 -12 7 34 -11 49 57 -12 11 43 0.64 - 73 0 0 -11 40 6 2 41 35.7 15 61 -44 -11 33 23 -11 46 49 -11 29 16 -11 50 57 0.64 - 72 0 0 -11 19 55 2 41 32.0 16 60 -45 -11 13 13 -11 26 37 -11 9 7 -11 30 44 0.65 - 71 0 0 -11 0 16 2 41 28.0 17 60 -46 -10 53 35 -11 6 57 -10 49 30 -11 11 3 0.65 - 70 0 0 -10 41 9 2 41 23.9 18 60 -47 -10 34 30 -10 47 49 -10 30 25 -10 51 55 0.65 - 69 0 0 -10 22 35 2 41 19.5 19 60 -48 -10 15 57 -10 29 14 -10 11 53 -10 33 19 0.65 - 68 0 0 -10 4 34 2 41 14.9 20 59 -49 - 9 57 58 -10 11 12 - 9 53 54 -10 15 16 0.65 - 67 0 0 - 9 47 6 2 41 10.2 21 59 -50 - 9 40 31 - 9 53 43 - 9 36 28 - 9 57 46 0.65 - 66 0 0 - 9 30 11 2 41 5.2 22 59 -50 - 9 23 37 - 9 36 46 - 9 19 35 - 9 40 49 0.65 - 65 0 0 - 9 13 49 2 41 0.0 23 59 -51 - 9 7 16 - 9 20 23 - 9 3 14 - 9 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0.70 59 0 0 -39 29 44 2 23 54.7 5 308 19 -39 22 3 -39 37 25 -39 17 21 -39 42 9 0.70 60 0 0 -40 1 9 2 23 53.7 4 307 20 -39 53 28 -40 8 50 -39 48 46 -40 13 34 0.71 61 0 0 -40 32 19 2 23 52.9 3 306 21 -40 24 38 -40 40 0 -40 19 56 -40 44 44 0.71 62 0 0 -41 3 13 2 23 52.3 2 306 22 -40 55 33 -41 10 54 -40 50 51 -41 15 38 0.73 63 0 0 -41 33 51 2 23 51.9 1 305 23 -41 26 11 -41 41 32 -41 21 29 -41 46 15 0.75 64 0 0 -42 4 11 2 23 51.7 1 304 24 -41 56 32 -42 11 52 -41 51 50 -42 16 35 0.85 Uncertainty in time = +/- 5 secs Prediction of 2023 Jul 15.7 Data for the target star ------------------------ * name: TYC 1914-00551-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 07 27 36.7944 DE: +24 27 49.854 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 07 27 36.7945 DE: +24 27 49.854 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.3 * B mag [mag]: 10.7 * Diameter [mas]: 0.10 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (4337) Arecibo asteroid class: asteroid system: multiple bodies approx. diameter [km]: 19 approx. diameter ["]: 0.010 distance from Earth [AU]: 2.57870 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#49 date of fit: 2023 Feb 10 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): 0.026", 0.001", 97.733° remarks: * orbital elements for (4337)Arecibo : Mean anomaly = 238.9559275102 deg Arg. of pericenter = 189.3546068819 deg Long. of node = 41.0594982475 deg Inclination = 2.1884090269 deg Eccentricity = 0.0935489082 Semimajor axis = 3.2642412142 AU Perihelion dist = 2.9588750127 AU Mag: H = 12.49, G = 0.15 Epoch of elements : MJD 60652.10621421 TDT (2024 Dec 08.1062) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#492023Feb10,1.99,2024,12,8,2.549095,-0.134915,-0.532297,-5.342911,1.350264,-0.003334,0.000285,0.000001,0.000000 -3.2983,24.4131,139.75,-22.75,False TYC 1914-00551-1,7.46022066,24.4638483,10.70,10.30,10.08,0.1,0,,7.48576467,24.4130604,7.55,7.32,0,0,0 4337,Arecibo,17.85,19.398,2.5787,0,1,-1.334,4.61,,1.6,0 ,13,48,0.800000,,,,,, 0,238.9382,2024,12,8,189.3546,41.0595,2.1884,0.09355,3.26424,2.95888,12.50,5.0,0.15 1.307,0.0263,0.0011,98,0.0032,Known errors,1.09,0,-1,-1 20241208_0551-1,60140.73 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 17:32 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org