IOTA/IOTA-ES occultation update for (859) Bouzareah / TYC 2982-00410-1 event on 2022 Feb 19, 10:47 UT Visible from USA, Japan, China Summary ------- On 2022 Feb 19 UT, the 71.2 km diameter asteroid (859) Bouzareah will occult a 11.6 mag star in the constellation Lynx for observers along a path across USA, Japan, China. In the case of an occultation, the combined light of the asteroid and the star will drop by 3.08 mag to 14.58 mag (the magnitude of the asteroid) for at most 6.640 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: 2022 Feb 19, 10:37 - 2022 Feb 19, 10:57 * geocentric midpoint of event [JD]: 2459629.94960763 * magnitude of target star: 11.57 * magnitude drop [mag]: 3.08 * estimated maximum duration [s]: 6.640 * Moon: 92 % sunlit, 59° distance * Sun: 148° distance * rough path description: USA, Japan, China The occultation path -------------------- * approximate projected width [km]: 73 * 1 sigma uncertainty interval [path widths]: +/- 0.14 * 1 sigma uncertainty interval [seconds]: +/- 2.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.015, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.015", 0.004", 102°) * approx speed of asteroid's shadow [km/s]: 10.7187 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 2982-00410-1 by 859 Bouzareah on 2022 Feb 19 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 84 0 0 6 42 53 10 57 4.4 0 52 23 7 7 55 6 17 53 7 14 58 .. .. .. .... 85 0 0 7 29 25 10 57 4.2 2 52 22 7 54 31 7 4 23 8 1 35 6 57 21 -0.25 86 0 0 8 16 8 10 57 3.7 3 53 21 8 41 17 7 51 3 8 48 21 7 44 0 -0.24 87 0 0 9 2 59 10 57 2.9 4 53 20 9 28 11 8 37 51 9 35 16 8 30 48 -0.23 88 0 0 9 49 56 10 57 1.8 5 53 18 10 15 10 9 24 45 10 22 15 9 17 42 -0.23 89 0 0 10 36 57 10 57 0.4 7 53 17 11 2 13 10 11 44 11 9 19 10 4 40 -0.23 90 0 0 11 24 1 10 56 58.7 8 53 16 11 49 18 10 58 46 11 56 25 10 51 41 -0.23 91 0 0 12 11 4 10 56 56.7 9 53 15 12 36 24 11 45 48 12 43 31 11 38 43 -0.23 92 0 0 12 58 6 10 56 54.5 10 54 14 13 23 27 12 32 49 13 30 35 12 25 44 -0.23 93 0 0 13 45 5 10 56 52.0 12 54 13 14 10 27 13 19 47 14 17 35 13 12 41 -0.23 94 0 0 14 31 58 10 56 49.2 13 54 12 14 57 21 14 6 39 15 4 29 13 59 33 -0.23 95 0 0 15 18 45 10 56 46.1 14 54 10 15 44 7 14 53 25 15 51 16 14 46 19 -0.23 96 0 0 16 5 22 10 56 42.8 15 55 9 16 30 45 15 40 2 16 37 53 15 32 56 -0.23 97 0 0 16 51 48 10 56 39.2 16 55 8 17 17 11 16 26 28 17 24 19 16 19 22 -0.23 98 0 0 17 38 2 10 56 35.4 18 55 7 18 3 24 17 12 42 18 10 32 17 5 36 -0.23 99 0 0 18 24 1 10 56 31.4 19 56 6 18 49 23 17 58 42 18 56 31 17 51 37 -0.23 100 0 0 19 9 44 10 56 27.1 20 56 5 19 35 5 18 44 27 19 42 13 18 37 21 -0.23 101 0 0 19 55 10 10 56 22.6 21 56 4 20 20 30 19 29 54 20 27 37 19 22 48 -0.23 102 0 0 20 40 17 10 56 17.8 22 57 3 21 5 35 20 15 2 21 12 42 20 7 57 -0.23 103 0 0 21 25 3 10 56 12.9 24 57 2 21 50 19 20 59 49 21 57 26 20 52 45 -0.23 104 0 0 22 9 27 10 56 7.8 25 58 1 22 34 41 21 44 15 22 41 47 21 37 11 -0.23 105 0 0 22 53 27 10 56 2.4 26 58 0 23 18 39 22 28 18 23 25 45 22 21 14 -0.23 106 0 0 23 37 2 10 55 56.9 27 59 -1 24 2 12 23 11 55 24 9 17 23 4 53 -0.23 107 0 0 24 20 12 10 55 51.2 28 59 -2 24 45 19 23 55 7 24 52 23 23 48 6 -0.23 108 0 0 25 2 54 10 55 45.4 29 59 -3 25 27 58 24 37 52 25 35 1 24 30 51 -0.23 109 0 0 25 45 7 10 55 39.4 30 60 -4 26 10 9 25 20 9 26 17 11 25 13 9 -0.23 110 0 0 26 26 51 10 55 33.2 31 61 -5 26 51 50 26 1 56 26 58 51 25 54 57 -0.23 111 0 0 27 8 5 10 55 26.9 33 61 -6 27 33 0 26 43 14 27 40 0 26 36 15 -0.23 112 0 0 27 48 47 10 55 20.5 34 62 -7 28 13 38 27 24 0 28 20 37 27 17 2 -0.23 113 0 0 28 28 57 10 55 13.9 35 62 -8 28 53 44 28 4 13 29 0 42 27 57 17 -0.23 114 0 0 29 8 34 10 55 7.2 36 63 -9 29 33 17 28 43 55 29 40 14 28 37 0 -0.23 115 0 0 29 47 38 10 55 0.5 37 63 -10 30 12 16 29 23 2 30 19 12 29 16 8 -0.23 116 0 0 30 26 6 10 54 53.6 38 64 -11 30 50 41 30 1 35 30 57 35 29 54 43 -0.23 117 0 0 31 4 0 10 54 46.6 39 65 -12 31 28 30 30 39 34 31 35 23 30 32 42 -0.23 118 0 0 31 41 19 10 54 39.6 40 65 -13 32 5 44 31 16 57 32 12 36 31 10 7 -0.23 119 0 0 32 18 1 10 54 32.4 41 66 -14 32 42 21 31 53 44 32 49 12 31 46 55 -0.23 120 0 0 32 54 7 10 54 25.2 42 67 -14 33 18 23 32 29 55 33 25 12 32 23 7 -0.23 121 0 0 33 29 36 10 54 18.0 43 68 -15 33 53 47 33 5 29 34 0 35 32 58 43 -0.23 122 0 0 34 4 29 10 54 10.7 44 68 -16 34 28 34 33 40 26 34 35 20 33 33 42 -0.23 123 0 0 34 38 44 10 54 3.3 45 69 -17 35 2 44 34 14 46 35 9 28 34 8 3 -0.23 124 0 0 35 12 21 10 53 55.9 46 70 -18 35 36 16 34 48 29 35 42 59 34 41 48 -0.24 125 0 0 35 45 21 10 53 48.4 47 71 -19 36 9 10 35 21 34 36 15 52 35 14 55 -0.24 126 0 0 36 17 43 10 53 41.0 48 72 -19 36 41 27 35 54 2 36 48 7 35 47 24 -0.24 127 0 0 36 49 28 10 53 33.5 48 72 -20 37 13 6 36 25 52 37 19 45 36 19 15 -0.24 128 0 0 37 20 34 10 53 25.9 49 73 -21 37 44 7 36 57 4 37 50 45 36 50 29 -0.24 129 0 0 37 51 3 10 53 18.4 50 74 -22 38 14 31 37 27 39 38 21 6 37 21 5 -0.24 130 0 0 38 20 55 10 53 10.8 51 75 -22 38 44 16 37 57 36 38 50 50 37 51 3 -0.24 131 0 0 38 50 8 10 53 3.3 52 76 -23 39 13 24 38 26 55 39 19 57 38 20 24 -0.24 132 0 0 39 18 45 10 52 55.7 53 77 -24 39 41 55 38 55 37 39 48 26 38 49 8 -0.24 133 0 0 39 46 44 10 52 48.2 54 78 -25 40 9 48 39 23 42 40 16 18 39 17 14 -0.24 134 0 0 40 14 6 10 52 40.6 54 79 -25 40 37 5 39 51 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6 26 32 18 25 28 4 -0.24 - 87 0 0 25 17 36 10 38 11.5 15 305 -24 25 42 45 24 52 30 25 49 49 24 45 28 -0.24 - 86 0 0 24 34 33 10 38 8.4 14 305 -23 24 59 46 24 9 24 25 6 51 24 2 21 -0.25 - 85 0 0 23 51 2 10 38 5.4 13 305 -22 24 16 17 23 25 50 24 23 23 23 18 46 -0.25 - 84 0 0 23 7 3 10 38 2.7 12 306 -21 23 32 21 22 41 48 23 39 28 22 34 43 -0.25 - 83 0 0 22 22 37 10 38 0.3 11 306 -20 22 47 58 21 57 20 22 55 5 21 50 14 -0.25 - 82 0 0 21 37 47 10 37 58.0 10 307 -19 22 3 10 21 12 27 22 10 18 21 5 21 -0.26 - 81 0 0 20 52 33 10 37 56.0 8 307 -18 21 17 58 20 27 11 21 25 6 20 20 5 -0.26 - 80 0 0 20 6 57 10 37 54.3 7 307 -17 20 32 23 19 41 33 20 39 32 19 34 26 -0.27 - 79 0 0 19 21 0 10 37 52.8 6 308 -16 19 46 28 18 55 35 19 53 38 18 48 28 -0.28 - 78 0 0 18 34 45 10 37 51.6 5 308 -15 19 0 14 18 9 19 19 7 24 18 2 11 -0.29 - 77 0 0 17 48 12 10 37 50.6 3 308 -14 18 13 42 17 22 45 18 20 52 17 15 37 -0.32 - 76 0 0 17 1 24 10 37 49.9 2 309 -13 17 26 54 16 35 57 17 34 5 16 28 48 -0.37 - 75 0 0 16 14 22 10 37 49.6 1 309 -12 16 39 53 15 48 54 16 47 3 15 41 46 -0.54 Uncertainty in time = +/- 2 secs Prediction of 2022 Feb 14.8 Data for the target star ------------------------ * name: TYC 2982-00410-1 * constellation : Lynx * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 48 10.5517 DE: +37 30 37.539 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 48 10.5517 DE: +37 30 37.540 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 11.6 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (859) Bouzareah asteroid class: approx. diameter [km]: 71 approx. diameter ["]: 0.044 distance from Earth [AU]: 2.21480 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#93 date of fit: 2022 Feb 04 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): 0.015", 0.004", 102.368° remarks: * orbital elements for (859)Bouzareah : Mean anomaly = 62.9230943893 deg Arg. of pericenter = 21.8707339118 deg Long. of node = 35.6728492760 deg Inclination = 13.5012455112 deg Eccentricity = 0.1098680572 Semimajor axis = 3.2260350060 AU Perihelion dist = 2.8715968073 AU Mag: H = 9.78, G = 0.15 Epoch of elements : MJD 59629.44965278 TDT (2022 Feb 19.4497) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#932022Feb04,6.64,2022,2,19,10.790583,-0.022762,0.239454,-6.019675,-0.604292,0.002015,-0.002401,0.000001,0.000000 -178.8246,37.4290,21.59,-11.20,False TYC 2982-00410-1,8.80293102,37.5104278,0.00,11.57,0.00,0.0,0,,8.82671483,37.4290167,3.07,0.00,0,0,0 859,Bouzareah,14.58,71.2,2.2148,0,0,-2.006,-2.40,,4.0 0,62.8466,2022,2,19,21.8707,35.6728,13.5012,0.10987,3.22604,2.87160,9.76,5.0,0.15 1.140,0.0150,0.0043,102,0.0062,Known errors,-1.00,-1,-1,-1 20220219_0410-1,59624.80 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Feb 14, 19:15 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org