IOTA/IOTA-ES occultation update for (230) Athamantis / UCAC4-524-001760 event on 2022 Nov 10, 18:53 UT Visible from Russia, Europe Summary ------- On 2022 Nov 10 UT, the 111.5 km diameter asteroid (230) Athamantis will occult a 12.2 mag star in the constellation Pisces for observers along a path across Russia, Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 0.22 mag to 10.63 mag (the magnitude of the asteroid) for at most 14.570 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: 100 * date and approx. time of event: 2022 Nov 10, 18:40 - 2022 Nov 10, 19:07 * geocentric midpoint of event [JD]: 2459894.28744659 * magnitude of target star: 12.23 * magnitude drop [mag]: 0.22 * estimated maximum duration [s]: 14.570 * Moon: 94 % sunlit, 56° distance * Sun: 151° distance * rough path description: Russia, Europe Additional comments ------------------- low mag drop The occultation path -------------------- * approximate projected width [km]: 121 * 1 sigma uncertainty interval [path widths]: +/- 0.07 * 1 sigma uncertainty interval [seconds]: +/- 1.3 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.012, +/- 0.005) * 1 sigma uncertainty ellipse (major, minor, PA): (0.013", 0.002", 70°) * approx speed of asteroid's shadow [km/s]: 7.6512 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4-524-001760 by 230 Athamantis on 2022 Nov 10 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 ' " Longitude Longitude Longitude Longitude .. .. .. -33 0 0 .. .. .... .. .. .. ... .. .. - 39 31 11 ... .. .. - 39 15 6 .... - 38 8 45 -32 0 0 19 6 40.2 3 71 24 - 40 1 55 - 36 23 57 - 40 18 25 - 36 9 57 .... - 35 14 40 -31 0 0 19 6 37.1 6 69 21 - 36 53 40 - 33 41 19 - 37 7 56 - 33 28 45 -0.33 Latitude Latitude Latitude Latitude - 35 0 0 -30 54 33 19 6 36.8 6 69 21 -30 18 59 -31 29 58 -30 14 1 -31 34 53 -0.42 - 34 0 0 -30 31 38 19 6 35.2 7 68 20 -29 55 49 -31 7 17 -29 50 50 -31 12 13 -0.40 - 33 0 0 -30 7 39 19 6 33.3 8 68 19 -29 31 35 -30 43 32 -29 26 34 -30 48 31 -0.40 - 32 0 0 -29 42 35 19 6 31.2 9 68 18 -29 6 16 -30 18 44 -29 1 13 -30 23 45 -0.40 - 31 0 0 -29 16 26 19 6 28.7 10 67 17 -28 39 51 -29 52 51 -28 34 45 -29 57 54 -0.40 - 30 0 0 -28 49 10 19 6 26.0 11 67 16 -28 12 18 -29 25 51 -28 7 10 -29 30 56 -0.40 - 29 0 0 -28 20 45 19 6 23.0 12 66 15 -27 43 35 -28 57 44 -27 38 25 -29 2 51 -0.40 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41 29.1 10 299 -18 81 5 30 79 47 32 81 10 58 79 42 9 -0.44 163 0 0 80 19 43 18 41 28.6 10 300 -17 80 59 14 79 40 27 81 4 44 79 35 1 -0.44 164 0 0 80 12 43 18 41 28.0 10 301 -17 80 52 39 79 33 2 80 58 14 79 27 32 -0.44 165 0 0 80 5 24 18 41 27.4 10 302 -17 80 45 47 79 25 16 80 51 25 79 19 43 -0.44 166 0 0 79 57 44 18 41 26.9 9 303 -17 80 38 35 79 17 9 80 44 17 79 11 32 -0.44 167 0 0 79 49 43 18 41 26.3 9 304 -17 80 31 3 79 8 40 80 36 49 79 2 59 -0.45 168 0 0 79 41 20 18 41 25.7 9 305 -17 80 23 10 78 59 47 80 29 0 78 54 2 -0.45 169 0 0 79 32 33 18 41 25.2 9 306 -16 80 14 55 78 50 30 80 20 50 78 44 41 -0.45 170 0 0 79 23 23 18 41 24.6 8 307 -16 80 6 17 78 40 47 80 12 16 78 34 53 -0.45 171 0 0 79 13 46 18 41 24.0 8 308 -16 79 57 15 78 30 37 80 3 19 78 24 39 -0.45 172 0 0 79 3 43 18 41 23.4 8 309 -16 79 47 47 78 19 59 79 53 56 78 13 56 -0.45 173 0 0 78 53 11 18 41 22.9 8 310 -15 79 37 52 78 8 51 79 44 6 78 2 43 -0.45 174 0 0 78 42 9 18 41 22.3 7 311 -15 79 27 29 77 57 11 79 33 48 77 50 58 -0.45 175 0 0 78 30 35 18 41 21.7 7 312 -15 79 16 35 77 44 59 79 23 1 77 38 41 -0.45 176 0 0 78 18 29 18 41 21.2 7 312 -15 79 5 11 77 32 12 79 11 42 77 25 48 -0.45 177 0 0 78 5 47 18 41 20.6 7 313 -15 78 53 12 77 18 48 78 59 50 77 12 18 -0.45 178 0 0 77 52 29 18 41 20.1 6 314 -14 78 40 39 77 4 45 78 47 22 76 58 9 -0.46 179 0 0 77 38 31 18 41 19.5 6 315 -14 78 27 28 76 50 1 78 34 18 76 43 19 -0.46 180 0 0 77 23 51 18 41 19.0 6 316 -14 78 13 37 76 34 34 78 20 34 76 27 46 -0.46 -179 0 0 77 8 27 18 41 18.5 5 317 -13 77 59 4 76 18 21 78 6 9 76 11 26 -0.46 -178 0 0 76 52 17 18 41 18.0 5 318 -13 77 43 47 76 1 20 77 50 59 75 54 18 -0.46 -177 0 0 76 35 17 18 41 17.5 5 319 -13 77 27 42 75 43 27 77 35 2 75 36 17 -0.47 -176 0 0 76 17 25 18 41 17.0 4 320 -12 77 10 47 75 24 39 77 18 14 75 17 22 -0.47 -175 0 0 75 58 36 18 41 16.6 4 321 -12 76 52 57 75 4 53 77 0 34 74 57 28 -0.48 -174 0 0 75 38 48 18 41 16.1 3 322 -12 76 34 11 74 44 6 76 41 56 74 36 33 -0.49 -173 0 0 75 17 57 18 41 15.7 3 323 -11 76 14 24 74 22 13 76 22 17 74 14 31 -0.50 -172 0 0 74 55 58 18 41 15.4 3 324 -11 75 53 31 73 59 10 76 1 34 73 51 20 -0.51 -171 0 0 74 32 47 18 41 15.1 2 325 -11 75 31 29 73 34 52 75 39 42 73 26 53 -0.53 -170 0 0 74 8 19 18 41 14.8 2 326 -10 75 8 12 73 9 16 75 16 35 73 1 8 -0.57 -169 0 0 73 42 29 18 41 14.6 1 327 -10 74 43 36 72 42 15 74 52 10 72 33 57 -0.64 -168 0 0 73 15 12 18 41 14.5 1 328 -9 74 17 35 .. .. .. 74 26 19 .. .. .. -0.88 Uncertainty in time = +/- 2 secs Prediction of 2022 Oct 17.0 Data for the target star ------------------------ * name: UCAC4-524-001760 * constellation : Pisces * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 01 00 13.4552 DE: +14 38 52.792 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 01 00 13.4551 DE: +14 38 52.792 * position source: Gaia EDR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.2 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (230) Athamantis asteroid class: approx. diameter [km]: 112 approx. diameter ["]: 0.116 distance from Earth [AU]: 1.32200 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#112 date of fit: 2022 Sep 22 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): 0.013", 0.002", 69.871° remarks: * orbital elements for (230)Athamantis : Mean anomaly = 11.0344935505 deg Arg. of pericenter = 139.1470997802 deg Long. of node = 239.7763772467 deg Inclination = 9.4530498211 deg Eccentricity = 0.0619941630 Semimajor axis = 2.3826368300 AU Perihelion dist = 2.2349272540 AU Mag: H = 7.53, G = 0.27 Epoch of elements : MJD 59893.78722222 TDT (2022 Nov 10.7872) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#1122022Sep22,14.57,2022,11,10,18.898718,-0.333236,0.214895,-2.323768,-3.640075,0.002699,0.000427,0.000001,0.000001 41.9672,14.7722,-107.49,-17.29,False UCAC4-524-001760,1.00373754,14.6479979,0.00,12.23,0.00,0.0,0,,1.02389615,14.7721697,0.22,0.00,0,0,0 230,Athamantis,10.63,111.5,1.3220,0,0,-1.064,-24.21,,5.6,0 0,10.8235,2022,11,10,139.1471,239.7764,9.4530,0.06199,2.38264,2.23493,7.53,5.0,0.15 1.069,0.0130,0.0022,70,0.0081,Known errors,-1.00,-1,-1,-1 20221110_001760,59868.97 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2022 Oct 16, 23:12 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org