IOTA/IOTA-ES occultation update for (310) Margarita / TYC 6154-00941-1 event on 2024 Jun 04, 00:53 UT Visible from Summary ------- On 2024 Jun 04 UT, the 32.438 km diameter asteroid (310) Margarita will occult a 11.2 mag star in the constellation Libra for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 2.77 mag to 13.85 mag (the magnitude of the asteroid) for at most 5.260 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 Jun 04, 00:38 - 2024 Jun 04, 01:09 * geocentric midpoint of event [JD]: 2460465.53733675 * magnitude of target star: 11.17 * magnitude drop [mag]: 2.77 * estimated maximum duration [s]: 5.260 * Moon: 8 % sunlit, 177° distance * Sun: 150° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 37 * 1 sigma uncertainty interval [path widths]: +/- 0.17 * 1 sigma uncertainty interval [seconds]: +/- 3.8 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.020, +/- 0.006) * 1 sigma uncertainty ellipse (major, minor, PA): (0.021", 0.002", 104°) * approx speed of asteroid's shadow [km/s]: 6.1680 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 6154-00941-1 by 310 Margarita on 2024 Jun 4 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 -139 0 0 - 2 25 57 1 8 52.2 0 106 28 - 2 15 38 - 2 36 18 - 2 12 2 - 2 39 54 .... -138 0 0 - 2 43 6 1 8 52.0 1 105 27 - 2 32 45 - 2 53 28 - 2 29 9 - 2 57 5 0.39 -137 0 0 - 3 0 49 1 8 51.3 2 105 26 - 2 50 27 - 3 11 12 - 2 46 50 - 3 14 49 0.45 -136 0 0 - 3 19 5 1 8 50.3 3 105 25 - 3 8 42 - 3 29 30 - 3 5 5 - 3 33 8 0.48 -135 0 0 - 3 37 55 1 8 48.9 4 105 24 - 3 27 30 - 3 48 21 - 3 23 53 - 3 52 0 0.49 -134 0 0 - 3 57 18 1 8 47.0 5 105 23 - 3 46 51 - 4 7 46 - 3 43 13 - 4 11 24 0.50 -133 0 0 - 4 17 13 1 8 44.8 6 105 22 - 4 6 45 - 4 27 43 - 4 3 7 - 4 31 22 0.50 -132 0 0 - 4 37 41 1 8 42.2 7 105 20 - 4 27 11 - 4 48 12 - 4 23 32 - 4 51 52 0.50 -131 0 0 - 4 58 41 1 8 39.2 8 105 19 - 4 48 10 - 5 9 14 - 4 44 30 - 5 12 54 0.51 -130 0 0 - 5 20 12 1 8 35.9 10 105 18 - 5 9 39 - 5 30 47 - 5 5 59 - 5 34 28 0.51 -129 0 0 - 5 42 15 1 8 32.1 11 105 17 - 5 31 40 - 5 52 51 - 5 28 0 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0 -58 22 22 -57 58 28 -58 25 55 0.56 42 59 59 -58 5 15 0 39 30.5 16 266 -38 -57 55 3 -58 15 27 -57 51 30 -58 19 1 0.56 43 59 59 -57 57 58 0 39 27.4 16 266 -38 -57 47 45 -58 8 12 -57 44 12 -58 11 46 0.56 44 59 59 -57 50 21 0 39 24.5 15 265 -37 -57 40 7 -58 0 37 -57 36 34 -58 4 11 0.56 45 59 59 -57 42 24 0 39 21.6 15 264 -37 -57 32 8 -57 52 40 -57 28 34 -57 56 15 0.56 46 59 59 -57 34 6 0 39 18.8 14 263 -36 -57 23 49 -57 44 23 -57 20 14 -57 47 59 0.56 47 59 59 -57 25 26 0 39 16.1 13 262 -36 -57 15 8 -57 35 45 -57 11 33 -57 39 21 0.56 48 59 59 -57 16 25 0 39 13.4 13 261 -35 -57 6 6 -57 26 46 -57 2 30 -57 30 23 0.56 49 59 59 -57 7 3 0 39 10.9 12 261 -35 -56 56 42 -57 17 26 -56 53 6 -57 21 2 0.56 50 59 59 -56 57 19 0 39 8.5 12 260 -34 -56 46 56 -57 7 43 -56 43 20 -57 11 20 0.56 51 59 59 -56 47 13 0 39 6.1 11 259 -34 -56 36 49 -56 57 39 -56 33 12 -57 1 16 0.56 52 59 59 -56 36 45 0 39 3.9 11 258 -33 -56 26 19 -56 47 12 -56 22 41 -56 50 50 0.56 53 59 59 -56 25 54 0 39 1.7 10 257 -33 -56 15 26 -56 36 23 -56 11 48 -56 40 2 0.56 54 59 59 -56 14 40 0 38 59.7 9 256 -32 -56 4 10 -56 25 10 -56 0 31 -56 28 50 0.57 55 59 59 -56 3 3 0 38 57.7 9 256 -32 -55 52 31 -56 13 35 -55 48 52 -56 17 16 0.57 56 59 59 -55 51 2 0 38 55.9 8 255 -31 -55 40 29 -56 1 37 -55 36 49 -56 5 18 0.57 57 59 59 -55 38 38 0 38 54.1 8 254 -31 -55 28 3 -55 49 14 -55 24 22 -55 52 56 0.57 59 0 0 -55 25 50 0 38 52.5 7 253 -30 -55 15 13 -55 36 28 -55 11 32 -55 40 11 0.58 60 0 0 -55 12 38 0 38 51.0 7 252 -29 -55 1 59 -55 23 18 -54 58 17 -55 27 1 0.58 61 0 0 -54 59 1 0 38 49.6 6 251 -29 -54 48 20 -55 9 43 -54 44 37 -55 13 26 0.58 62 0 0 -54 44 59 0 38 48.3 5 251 -28 -54 34 16 -54 55 43 -54 30 32 -54 59 27 0.59 63 0 0 -54 30 31 0 38 47.2 5 250 -28 -54 19 46 -54 41 18 -54 16 2 -54 45 3 0.60 64 0 0 -54 15 39 0 38 46.2 4 249 -27 -54 4 51 -54 26 27 -54 1 6 -54 30 13 0.61 65 0 0 -54 0 20 0 38 45.3 3 248 -27 -53 49 30 -54 11 10 -53 45 45 -54 14 57 0.62 66 0 0 -53 44 35 0 38 44.6 3 247 -26 -53 33 43 -53 55 28 -53 29 57 -53 59 15 0.64 67 0 0 -53 28 23 0 38 44.0 2 247 -25 -53 17 30 -53 39 19 -53 13 42 -53 43 7 0.68 68 0 0 -53 11 45 0 38 43.6 1 246 -25 -53 0 49 -53 22 43 -52 57 1 -53 26 32 0.75 69 0 0 -52 54 40 0 38 43.3 1 245 -24 -52 43 41 -53 5 39 -52 39 53 -53 9 29 0.95 70 0 0 -52 37 7 0 38 43.2 0 244 -24 -52 26 6 -52 48 9 .. .. .. -52 52 0 3.79 Uncertainty in time = +/- 4 secs Prediction of 2023 Jul 14.4 Data for the target star ------------------------ * name: TYC 6154-00941-1 * constellation : Libra * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 14 45 19.5030 DE: -15 24 08.495 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 14 45 19.5029 DE: -15 24 08.494 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 11.2 * B mag [mag]: 11.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (310) Margarita asteroid class: approx. diameter [km]: 32 approx. diameter ["]: 0.028 distance from Earth [AU]: 1.57290 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#59 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): 0.021", 0.002", 104.5° remarks: * orbital elements for (310)Margarita : Mean anomaly = 33.0805344154 deg Arg. of pericenter = 324.8800485673 deg Long. of node = 229.0409130409 deg Inclination = 3.1718998204 deg Eccentricity = 0.1169827516 Semimajor axis = 2.7611873621 AU Perihelion dist = 2.4381760667 AU Mag: H = 10.16, G = 0.15 Epoch of elements : MJD 60465.03733688 TDT (2024 Jun 04.0373) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#592023Apr24,5.26,2024,6,4,0.896082,-0.214053,-0.432341,-3.118709,1.547195,0.002590,-0.000855,0.000001,0.000000 -44.7326,-15.5068,166.15,22.47,False TYC 6154-00941-1,14.75541752,-15.4023597,11.54,11.17,10.97,0.0,0,,14.77814709,-15.5067989,2.77,2.54,0,0,0 310,Margarita,13.85,32.438,1.5729,0,0,-1.205,8.65,,1.6,0 0,32.8577,2024,6,3,324.8800,229.0409,3.1719,0.11698,2.76119,2.43818,10.16,5.0,0.15 1.174,0.0210,0.0025,104,0.0050,Known errors,1.05,0,-1,-1 20240604_0941-1,60139.37 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 14, 08:50 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org