IOTA/IOTA-ES occultation update for (7143) Haramura / UCAC4 440-045732 event on 2024 Jan 20, 01:52 UT Visible from Summary ------- On 2024 Jan 20 UT, the 12.766 km diameter asteroid (7143) Haramura will occult a 11.5 mag star in the constellation Hydra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.46 mag to 16.90 mag (the magnitude of the asteroid) for at most 0.890 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 Jan 20, 01:45 - 2024 Jan 20, 02:00 * geocentric midpoint of event [JD]: 2460329.57831292 * magnitude of target star: 11.45 * magnitude drop [mag]: 5.46 * estimated maximum duration [s]: 0.890 * Moon: 69 % sunlit, 79° distance * Sun: 157° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 13 * 1 sigma uncertainty interval [path widths]: +/- 0.34 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.018", 0.002", 105°) * approx speed of asteroid's shadow [km/s]: 14.3997 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 440-045732 by 7143 Haramura on 2024 Jan 20 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 -111 0 0 11 20 56 2 0 8.9 1 92 -10 11 24 24 11 17 28 11 26 43 11 15 9 .... -110 0 0 11 18 23 2 0 8.8 2 93 -11 11 21 51 11 14 55 11 24 10 11 12 36 -0.01 -109 0 0 11 15 39 2 0 8.4 3 93 -12 11 19 7 11 12 11 11 21 26 11 9 52 -0.01 -108 0 0 11 12 45 2 0 8.0 4 93 -12 11 16 13 11 9 17 11 18 32 11 6 58 -0.02 -107 0 0 11 9 40 2 0 7.4 5 93 -13 11 13 8 11 6 12 11 15 27 11 3 53 -0.02 -106 0 0 11 6 25 2 0 6.7 6 93 -14 11 9 53 11 2 57 11 12 12 11 0 38 -0.02 -105 0 0 11 3 0 2 0 5.9 7 94 -15 11 6 28 10 59 32 11 8 47 10 57 12 -0.02 -104 0 0 10 59 24 2 0 5.0 8 94 -16 11 2 52 10 55 56 11 5 11 10 53 37 -0.02 -103 0 0 10 55 38 2 0 3.9 9 94 -17 10 59 6 10 52 10 11 1 26 10 49 51 -0.02 -102 0 0 10 51 42 2 0 2.7 10 94 -18 10 55 11 10 48 14 10 57 30 10 45 55 -0.02 -101 0 0 10 47 36 2 0 1.3 11 94 -19 10 51 5 10 44 8 10 53 24 10 41 49 -0.02 -100 0 0 10 43 20 1 59 59.9 12 94 -20 10 46 49 10 39 52 10 49 8 10 37 33 -0.02 - 99 0 0 10 38 55 1 59 58.3 13 95 -21 10 42 23 10 35 26 10 44 42 10 33 7 -0.02 - 98 0 0 10 34 19 1 59 56.5 14 95 -22 10 37 47 10 30 51 10 40 7 10 28 31 -0.02 - 97 0 0 10 29 34 1 59 54.7 15 95 -22 10 33 2 10 26 5 10 35 22 10 23 46 -0.02 - 96 0 0 10 24 39 1 59 52.7 16 95 -23 10 28 7 10 21 10 10 30 27 10 18 51 -0.02 - 95 0 0 10 19 34 1 59 50.6 17 95 -24 10 23 3 10 16 6 10 25 22 10 13 46 -0.02 - 94 0 0 10 14 21 1 59 48.4 18 96 -25 10 17 49 10 10 52 10 20 9 10 8 32 -0.02 - 93 0 0 10 8 57 1 59 46.1 19 96 -26 10 12 26 10 5 29 10 14 46 10 3 9 -0.02 - 92 0 0 10 3 25 1 59 43.6 19 96 -27 10 6 54 9 59 56 10 9 13 9 57 37 -0.02 - 91 0 0 9 57 43 1 59 41.0 20 96 -28 10 1 12 9 54 15 10 3 32 9 51 55 -0.02 - 90 0 0 9 51 53 1 59 38.3 21 96 -29 9 55 22 9 48 24 9 57 41 9 46 4 -0.02 - 89 0 0 9 45 53 1 59 35.5 22 96 -30 9 49 22 9 42 24 9 51 42 9 40 5 -0.02 - 88 0 0 9 39 45 1 59 32.6 23 97 -31 9 43 14 9 36 16 9 45 33 9 33 56 -0.02 - 87 0 0 9 33 28 1 59 29.5 24 97 -31 9 36 57 9 29 59 9 39 16 9 27 39 -0.02 - 86 0 0 9 27 2 1 59 26.3 25 97 -32 9 30 31 9 23 33 9 32 51 9 21 13 -0.02 - 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71 0 0 7 34 46 1 58 25.1 40 99 -46 7 38 16 7 31 16 7 40 36 7 28 56 -0.03 - 70 0 0 7 26 20 1 58 20.1 41 99 -46 7 29 50 7 22 50 7 32 10 7 20 30 -0.03 - 69 0 0 7 17 47 1 58 15.1 42 100 -47 7 21 17 7 14 17 7 23 37 7 11 57 -0.03 - 68 0 0 7 9 8 1 58 10.0 43 100 -48 7 12 38 7 5 38 7 14 58 7 3 18 -0.03 - 67 0 0 7 0 23 1 58 4.7 44 100 -49 7 3 53 6 56 53 7 6 13 6 54 32 -0.03 - 66 0 0 6 51 32 1 57 59.4 45 100 -50 6 55 2 6 48 2 6 57 22 6 45 41 -0.03 - 65 0 0 6 42 35 1 57 54.0 46 100 -51 6 46 5 6 39 5 6 48 26 6 36 44 -0.03 - 64 0 0 6 33 33 1 57 48.5 47 100 -51 6 37 3 6 30 2 6 39 23 6 27 42 -0.03 - 63 0 0 6 24 25 1 57 42.9 48 100 -52 6 27 55 6 20 55 6 30 16 6 18 34 -0.03 - 62 0 0 6 15 12 1 57 37.2 49 101 -53 6 18 42 6 11 41 6 21 3 6 9 21 -0.03 - 61 0 0 6 5 53 1 57 31.5 50 101 -54 6 9 24 6 2 23 6 11 44 6 0 3 -0.03 - 60 0 0 5 56 30 1 57 25.6 51 101 -55 6 0 1 5 53 0 6 2 21 5 50 39 -0.03 - 59 0 0 5 47 2 1 57 19.7 52 101 -55 5 50 33 5 43 32 5 52 53 5 41 11 -0.03 - 58 0 0 5 37 30 1 57 13.7 53 101 -56 5 41 0 5 33 59 5 43 21 5 31 39 -0.03 - 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8 56 45 -0.02 57 0 0 - 8 51 26 1 45 37.5 14 270 -6 - 8 47 58 - 8 54 54 - 8 45 39 - 8 57 13 -0.02 58 0 0 - 8 51 43 1 45 35.7 13 270 -5 - 8 48 15 - 8 55 11 - 8 45 56 - 8 57 29 -0.02 59 0 0 - 8 51 49 1 45 34.0 13 270 -4 - 8 48 21 - 8 55 16 - 8 46 2 - 8 57 35 -0.02 60 0 0 - 8 51 43 1 45 32.4 12 270 -3 - 8 48 16 - 8 55 11 - 8 45 57 - 8 57 30 -0.02 61 0 0 - 8 51 27 1 45 30.9 11 269 -2 - 8 48 0 - 8 54 55 - 8 45 41 - 8 57 14 -0.02 62 0 0 - 8 51 1 1 45 29.6 10 269 -1 - 8 47 33 - 8 54 28 - 8 45 14 - 8 56 47 -0.03 63 0 0 - 8 50 23 1 45 28.4 9 269 0 - 8 46 55 - 8 53 51 - 8 44 36 - 8 56 9 -0.03 64 0 0 - 8 49 34 1 45 27.4 8 269 1 - 8 46 6 - 8 53 2 - 8 43 47 - 8 55 21 -0.03 65 0 0 - 8 48 34 1 45 26.4 7 269 2 - 8 45 6 - 8 52 2 - 8 42 47 - 8 54 21 -0.03 66 0 0 - 8 47 24 1 45 25.6 6 269 3 - 8 43 56 - 8 50 51 - 8 41 37 - 8 53 10 -0.03 67 0 0 - 8 46 2 1 45 24.9 5 268 4 - 8 42 34 - 8 49 30 - 8 40 15 - 8 51 49 -0.03 68 0 0 - 8 44 29 1 45 24.4 4 268 5 - 8 41 2 - 8 47 57 - 8 38 43 - 8 50 16 -0.03 69 0 0 - 8 42 46 1 45 23.9 3 268 5 - 8 39 18 - 8 46 14 - 8 36 59 - 8 48 33 -0.03 70 0 0 - 8 40 52 1 45 23.7 2 268 6 - 8 37 24 - 8 44 19 - 8 35 5 - 8 46 38 -0.02 71 0 0 - 8 38 46 1 45 23.5 1 268 7 - 8 35 18 - 8 42 14 - 8 32 59 - 8 44 33 -0.02 Uncertainty in time = +/- 2 secs Prediction of 2023 Jul 12.0 Data for the target star ------------------------ * name: UCAC4 440-045732 * constellation : Hydra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 25 25.7385 DE: -02 06 32.934 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 25 25.7385 DE: -02 06 32.934 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.300) * V mag [mag]: 11.5 * B mag [mag]: 12.0 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (7143) Haramura asteroid class: approx. diameter [km]: 13 approx. diameter ["]: 0.007 distance from Earth [AU]: 2.39110 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#48 date of fit: 2023 Apr 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): 0.018", 0.002", 105.016° remarks: * orbital elements for (7143)Haramura : Mean anomaly = 109.5626789667 deg Arg. of pericenter = 147.2096671978 deg Long. of node = 213.2309175579 deg Inclination = 14.7895324843 deg Eccentricity = 0.1613554181 Semimajor axis = 3.0873730247 AU Perihelion dist = 2.5892086594 AU Mag: H = 11.89, G = 0.15 Epoch of elements : MJD 60329.07831292 TDT (2024 Jan 20.0783) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#482023Apr25,0.89,2024,1,20,1.879510,0.004139,0.023592,-8.005482,1.403518,-0.000466,0.002301,0.000001,0.000000 -20.4828,-2.1877,154.50,-20.26,False UCAC4 440-045732,8.42381626,-2.1091483,11.97,11.45,11.17,0.0,0,,8.44438128,-2.1877423,5.46,5.29,0,0,0 7143,Haramura,16.90,12.766,2.3911,0,0,-1.964,5.16,,1.2,0 0,109.3668,2024,1,19,147.2097,213.2309,14.7895,0.16136,3.08737,2.58921,11.90,5.0,0.15 1.334,0.0183,0.0019,105,0.0025,Known errors,2.08,0,-1,-1 20240120_045732,60137.02 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 12, 00:31 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org