IOTA/IOTA-ES occultation update for (3796) Lene / TYC 6124-00948-1 event on 2024 May 06, 18:54 UT Visible from Summary ------- On 2024 May 06 UT, the 19.326 km diameter asteroid (3796) Lene will occult a 11.5 mag star in the constellation Virgo for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 3.94 mag to 15.42 mag (the magnitude of the asteroid) for at most 2.210 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: 95 * date and approx. time of event: 2024 May 06, 18:43 - 2024 May 06, 19:04 * geocentric midpoint of event [JD]: 2460437.28760958 * magnitude of target star: 11.51 * magnitude drop [mag]: 3.94 * estimated maximum duration [s]: 2.210 * Moon: 3 % sunlit, 172° distance * Sun: 159° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 22 * 1 sigma uncertainty interval [path widths]: +/- 0.43 * 1 sigma uncertainty interval [seconds]: +/- 3.1 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.026, +/- 0.009) * 1 sigma uncertainty ellipse (major, minor, PA): (0.027", 0.001", 110°) * approx speed of asteroid's shadow [km/s]: 8.7568 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6124-00948-1 by 3796 Lene on 2024 May 6 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 - 1 59 59 60 32 26 19 4 36.9 0 131 7 60 40 31 60 24 22 60 47 25 60 17 30 .... - 0 59 59 60 6 16 19 4 36.9 1 132 7 60 14 24 59 58 8 60 21 22 59 51 13 -0.18 0 0 1 59 39 18 19 4 36.7 2 133 6 59 47 31 59 31 7 59 54 31 59 24 9 -0.36 1 0 1 59 11 33 19 4 36.3 2 134 5 59 19 49 59 3 18 59 26 52 58 56 17 -0.43 2 0 1 58 42 58 19 4 35.9 3 135 5 58 51 18 58 34 40 58 58 24 58 27 35 -0.47 3 0 1 58 13 34 19 4 35.3 4 135 4 58 21 57 58 5 12 58 29 6 57 58 5 -0.50 4 0 1 57 43 19 19 4 34.6 4 136 3 57 51 45 57 34 53 57 58 58 57 27 43 -0.51 5 0 1 57 12 13 19 4 33.7 5 137 3 57 20 42 57 3 44 57 27 58 56 56 31 -0.53 6 0 1 56 40 14 19 4 32.6 6 138 2 56 48 48 56 31 42 56 56 6 56 24 26 -0.54 7 0 1 56 7 24 19 4 31.4 7 139 1 56 16 0 55 58 49 56 23 22 55 51 30 -0.54 8 0 1 55 33 41 19 4 29.9 7 140 0 55 42 20 55 25 2 55 49 44 55 17 41 -0.55 9 0 1 54 59 4 19 4 28.3 8 140 0 55 7 47 54 50 23 55 15 13 54 42 59 -0.56 10 0 1 54 23 34 19 4 26.5 9 141 -1 54 32 20 54 14 50 54 39 49 54 7 23 -0.56 11 0 1 53 47 10 19 4 24.5 10 142 -2 53 55 59 53 38 23 54 3 30 53 30 54 -0.56 12 0 1 53 9 53 19 4 22.2 11 143 -3 53 18 44 53 1 3 53 26 18 52 53 32 -0.57 13 0 1 52 31 42 19 4 19.7 12 144 -4 52 40 35 52 22 49 52 48 12 52 15 16 -0.57 14 0 1 51 52 37 19 4 17.0 13 144 -4 52 1 33 51 43 42 52 9 11 51 36 7 -0.57 15 0 1 51 12 39 19 4 14.0 13 145 -5 51 21 37 51 3 42 51 29 18 50 56 5 -0.58 16 0 1 50 31 48 19 4 10.8 14 146 -6 50 40 49 50 22 49 50 48 31 50 15 10 -0.58 17 0 1 49 50 6 19 4 7.3 15 147 -7 49 59 8 49 41 4 50 6 52 49 33 24 -0.58 18 0 1 49 7 31 19 4 3.5 16 148 -8 49 16 36 48 58 29 49 24 21 48 50 47 -0.58 19 0 1 48 24 7 19 3 59.4 17 148 -9 48 33 13 48 15 2 48 40 59 48 7 19 -0.58 20 0 0 47 39 53 19 3 55.0 18 149 -10 47 49 0 47 30 47 47 56 47 47 23 3 -0.59 21 0 0 46 54 51 19 3 50.3 19 150 -11 47 3 59 46 45 44 47 11 47 46 37 58 -0.59 22 0 0 46 9 1 19 3 45.3 20 151 -12 46 18 11 45 59 54 46 26 0 45 52 8 -0.59 23 0 0 45 22 27 19 3 39.9 21 152 -13 45 31 37 45 13 19 45 39 27 45 5 32 -0.59 24 0 0 44 35 9 19 3 34.3 22 152 -14 44 44 19 44 26 0 44 52 9 44 18 13 -0.59 25 0 0 43 47 9 19 3 28.3 23 153 -15 43 56 19 43 38 0 44 4 10 43 30 12 -0.59 26 0 0 42 58 29 19 3 21.9 24 154 -16 43 7 39 42 49 20 43 15 30 42 41 32 -0.59 27 0 0 42 9 11 19 3 15.2 25 155 -17 42 18 21 42 0 2 42 26 12 41 52 15 -0.59 28 0 0 41 19 18 19 3 8.2 26 156 -18 41 28 28 41 10 9 41 36 18 41 2 22 -0.59 29 0 0 40 28 51 19 3 0.8 27 156 -20 40 38 0 40 19 43 40 45 50 40 11 56 -0.59 30 0 0 39 37 53 19 2 53.0 29 157 -21 39 47 1 39 28 46 39 54 50 39 21 0 -0.60 31 0 0 38 46 27 19 2 44.9 30 158 -22 38 55 34 38 37 21 39 3 22 38 29 36 -0.60 32 0 0 37 54 35 19 2 36.5 31 159 -23 38 3 41 37 45 30 38 11 28 37 37 46 -0.60 33 0 0 37 2 19 19 2 27.7 32 160 -24 37 11 24 36 53 16 37 19 10 36 45 33 -0.60 34 0 0 36 9 44 19 2 18.5 33 160 -25 36 18 47 36 0 42 36 26 31 35 53 1 -0.60 35 0 0 35 16 50 19 2 9.0 34 161 -26 35 25 52 35 7 50 35 33 35 35 0 11 -0.60 36 0 0 34 23 42 19 1 59.2 35 162 -28 34 32 41 34 14 43 34 40 22 34 7 5 -0.60 37 0 0 33 30 21 19 1 49.1 36 163 -29 33 39 18 33 21 25 33 46 58 33 13 49 -0.60 38 0 0 32 36 51 19 1 38.6 37 164 -30 32 45 46 32 27 57 32 53 24 32 20 23 -0.60 39 0 0 31 43 14 19 1 27.8 38 165 -31 31 52 7 31 34 23 31 59 42 31 26 50 -0.60 40 0 0 30 49 34 19 1 16.6 39 166 -32 30 58 24 30 40 45 31 5 57 30 33 14 -0.60 41 0 0 29 55 52 19 1 5.2 40 167 -34 30 4 40 29 47 6 30 12 11 29 39 38 -0.60 42 0 0 29 2 12 19 0 53.5 41 168 -35 29 10 57 28 53 28 29 18 26 28 46 2 -0.60 43 0 0 28 8 36 19 0 41.5 42 169 -36 28 17 18 27 59 55 28 24 44 27 52 32 -0.60 44 0 0 27 15 7 19 0 29.3 43 170 -37 27 23 46 27 6 29 27 31 10 26 59 8 -0.60 45 0 0 26 21 47 19 0 16.8 45 171 -38 26 30 24 26 13 12 26 37 45 26 5 54 -0.60 46 0 0 25 28 40 19 0 4.0 46 172 -40 25 37 13 25 20 8 25 44 31 25 12 52 -0.60 47 0 0 24 35 46 18 59 51.1 46 173 -41 24 44 16 24 27 17 24 51 32 24 20 4 -0.60 48 0 0 23 43 9 18 59 37.9 47 175 -42 23 51 36 23 34 43 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34 -0.58 75 0 0 3 25 37 18 53 9.8 59 223 -70 3 32 39 3 18 34 3 38 40 3 12 35 -0.58 76 0 0 2 50 19 18 52 55.9 59 225 -70 2 57 19 2 43 19 3 3 18 2 37 22 -0.58 77 0 0 2 15 48 18 52 42.0 59 227 -71 2 22 46 2 8 51 2 28 43 2 2 56 -0.58 78 0 0 1 42 5 18 52 28.2 59 228 -71 1 49 0 1 35 10 1 54 54 1 29 17 -0.58 79 0 0 1 9 8 18 52 14.6 58 230 -72 1 16 1 1 2 16 1 21 53 0 56 24 -0.58 80 0 0 0 36 58 18 52 1.1 58 232 -72 0 43 49 0 30 8 0 49 39 0 24 19 -0.58 81 0 0 0 5 36 18 51 47.7 57 233 -72 0 12 24 - 0 1 12 0 18 13 - 0 6 59 -0.58 82 0 0 - 0 24 59 18 51 34.4 57 235 -73 - 0 18 13 - 0 31 45 - 0 12 27 - 0 37 30 -0.58 83 0 0 - 0 54 47 18 51 21.3 56 236 -73 - 0 48 4 - 1 1 31 - 0 42 19 - 1 7 14 -0.58 84 0 0 - 1 23 48 18 51 8.4 56 237 -73 - 1 17 7 - 1 30 30 - 1 11 24 - 1 36 11 -0.58 85 0 0 - 1 52 2 18 50 55.6 55 239 -73 - 1 45 23 - 1 58 41 - 1 39 42 - 2 4 21 -0.58 86 0 0 - 2 19 29 18 50 42.9 55 240 -73 - 2 12 52 - 2 26 6 - 2 7 12 - 2 31 45 -0.58 87 0 0 - 2 46 9 18 50 30.4 54 241 -73 - 2 39 33 - 2 52 44 - 2 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43 5 - 9 25 40 - 9 48 17 -0.58 112 0 0 - 9 44 47 18 46 13.8 34 254 -56 - 9 38 41 - 9 50 52 - 9 33 29 - 9 56 3 -0.58 113 0 0 - 9 51 51 18 46 5.9 34 254 -55 - 9 45 45 - 9 57 55 - 9 40 33 -10 3 6 -0.58 114 0 0 - 9 58 10 18 45 58.2 33 254 -54 - 9 52 5 -10 4 15 - 9 46 54 -10 9 25 -0.58 115 0 0 -10 3 46 18 45 50.7 32 254 -53 - 9 57 42 -10 9 50 - 9 52 30 -10 15 1 -0.59 116 0 0 -10 8 38 18 45 43.4 31 254 -52 -10 2 34 -10 14 42 - 9 57 23 -10 19 52 -0.59 117 0 0 -10 12 46 18 45 36.2 30 254 -51 -10 6 42 -10 18 50 -10 1 31 -10 23 59 -0.59 118 0 0 -10 16 10 18 45 29.3 29 254 -50 -10 10 6 -10 22 13 -10 4 55 -10 27 23 -0.59 119 0 0 -10 18 50 18 45 22.5 28 254 -49 -10 12 46 -10 24 53 -10 7 35 -10 30 3 -0.59 120 0 0 -10 20 46 18 45 16.0 27 254 -49 -10 14 42 -10 26 49 -10 9 31 -10 31 58 -0.59 121 0 0 -10 21 57 18 45 9.6 26 254 -48 -10 15 53 -10 28 0 -10 10 43 -10 33 10 -0.59 122 0 0 -10 22 24 18 45 3.5 25 254 -47 -10 16 20 -10 28 28 -10 11 10 -10 33 37 -0.59 123 0 0 -10 22 7 18 44 57.5 25 254 -46 -10 16 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-22 - 6 17 44 - 6 30 37 - 6 12 15 - 6 36 5 -0.81 148 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. - 6 16 1 .... Uncertainty in time = +/- 3 secs Prediction of 2023 Jul 14.3 Data for the target star ------------------------ * name: TYC 6124-00948-1 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 13 26 23.6178 DE: -18 38 19.007 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 13 26 23.6177 DE: -18 38 19.007 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.5 * B mag [mag]: 11.8 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (3796) Lene asteroid class: approx. diameter [km]: 19 approx. diameter ["]: 0.018 distance from Earth [AU]: 1.44640 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#53 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): 0.027", 0.001", 110.1° remarks: * orbital elements for (3796)Lene : Mean anomaly = 320.4683845604 deg Arg. of pericenter = 357.6558409569 deg Long. of node = 269.3985049133 deg Inclination = 6.5161842795 deg Eccentricity = 0.1507223975 Semimajor axis = 2.6982711986 AU Perihelion dist = 2.2915812945 AU Mag: H = 12.11, G = 0.15 Epoch of elements : MJD 60436.78760946 TDT (2024 May 06.7876) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#532023Apr24,2.21,2024,5,6,18.902630,0.299774,0.403841,-3.969065,2.945439,0.001998,0.000062,0.000001,-0.000001 53.2716,-18.7671,-104.39,16.84,False TYC 6124-00948-1,13.43989384,-18.6386130,11.80,11.51,11.35,0.0,0,,13.46201508,-18.7670994,3.94,3.66,0,0,0 3796,Lene,15.42,19.326,1.4464,0,0,-1.698,17.91,,1.0,0 0,320.2932,2024,5,6,357.6558,269.3985,6.5162,0.15072,2.69827,2.29158,12.11,5.0,0.15 1.426,0.0273,0.0014,110,0.0079,Known errors,1.20,0,-1,-1 20240506_0948-1,60139.33 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 07:53 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org