IOTA/IOTA-ES occultation update for (1042) Amazone / UCAC4 513-055380 event on 2023 Apr 16, 23:43 UT Visible from N Europe Summary ------- On 2023 Apr 16 UT, the 68.7 km diameter asteroid (1042) Amazone will occult a 12.5 mag star in the constellation Virgo for observers along a path across N Europe. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.86 mag to 15.27 mag (the magnitude of the asteroid) for at most 4.480 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: 97 * date and approx. time of event: 2023 Apr 16, 23:39 - 2023 Apr 16, 23:47 * geocentric midpoint of event [JD]: 2460051.48847804 * magnitude of target star: 12.49 * magnitude drop [mag]: 2.86 * estimated maximum duration [s]: 4.480 * Moon: 13 % sunlit, 152° distance * Sun: 156° distance * rough path description: N Europe Additional comments ------------------- RUWE high The occultation path -------------------- * approximate projected width [km]: 124 * 1 sigma uncertainty interval [path widths]: +/- 0.40 * 1 sigma uncertainty interval [seconds]: +/- 2.2 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.018, +/- 0.015) * 1 sigma uncertainty ellipse (major, minor, PA): (0.023", 0.006", 128°) * approx speed of asteroid's shadow [km/s]: 15.3250 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 513-055380 by 1042 Amazone on 2023 Apr 16 Centre Star Star Sun Path Limit1 Path Limit2 Error Limit1 Error Limit2 Alt E. Longitude Latitude U.T. Alt Az Alt Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " o ' " o ' " o ' " o ' " Longitude Latitude Longitude Latitude Longitude Latitude Longitude Latitude .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. 100 1 26 55 11 45 .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. 101 7 21 55 25 6 ... .. .. .. .. .. 95 46 46 56 9 31 .... .. .. .. .. .. .. .. .. .... .. .. .. ... .. .. .. .. .. 96 26 24 56 29 2 ... .. .. .. .. .. 92 55 24 56 47 52 .... 98 21 34 56 38 47 23 39 36.7 4 286 10 ... .. .. .. .. .. 93 28 31 57 8 58 ... .. .. .. .. .. 90 35 15 57 18 51 .... 94 56 26 57 25 12 23 39 39.0 6 283 9 100 58 39 56 39 20 91 4 53 57 40 49 ... .. .. .. .. .. 88 32 47 57 45 34 -1.28 92 20 22 58 0 3 23 39 41.4 8 281 7 96 40 2 57 38 20 89 0 4 58 8 8 102 41 47 56 45 23 86 42 4 58 9 26 -1.37 90 7 57 58 29 15 23 39 43.7 9 279 6 93 46 8 58 17 29 87 7 34 58 32 27 97 36 37 57 55 21 84 59 51 58 31 11 -1.41 88 10 7 58 54 54 23 39 46.1 10 278 5 91 23 50 58 49 6 85 23 55 58 54 34 94 32 31 58 36 58 83 24 7 58 51 17 -1.43 86 22 22 59 18 2 23 39 48.5 11 276 4 89 19 24 59 16 24 83 46 58 59 14 59 92 4 56 59 9 55 81 53 32 59 10 4 -1.45 84 42 9 59 39 18 23 39 50.8 12 274 4 87 26 48 59 40 47 82 15 19 59 34 2 89 57 4 59 38 5 80 27 10 59 27 45 -1.46 83 7 45 59 59 3 23 39 53.2 12 273 3 85 42 44 60 3 1 80 47 58 59 51 57 88 1 55 60 3 7 79 4 18 59 44 29 -1.46 81 38 4 60 17 35 23 39 55.5 13 272 2 84 5 13 60 23 35 79 24 13 60 8 55 86 15 50 60 25 53 77 44 25 60 0 25 -1.47 80 12 14 60 35 4 23 39 57.9 14 270 2 82 32 51 60 42 48 78 3 29 60 25 2 84 36 38 60 46 53 76 27 6 60 15 37 -1.47 78 49 39 60 51 40 23 40 0.2 15 269 1 81 4 43 61 0 54 76 45 22 60 40 26 83 2 49 61 6 28 75 12 0 60 30 12 -1.48 77 29 51 61 7 30 23 40 2.6 15 268 1 79 40 5 61 18 2 75 29 31 60 55 11 81 33 23 61 24 54 73 58 51 60 44 11 -1.48 76 12 26 61 22 38 23 40 5.0 16 267 0 78 18 24 61 34 20 74 15 38 61 9 20 80 7 35 61 42 20 72 47 26 60 57 40 -1.48 74 57 6 61 37 10 23 40 7.3 16 266 0 76 59 18 61 49 55 73 3 31 61 22 58 78 44 49 61 58 55 71 37 34 61 10 41 -1.48 73 43 37 61 51 8 23 40 9.7 17 264 -1 75 42 23 62 4 51 71 52 57 61 36 7 77 24 42 62 14 44 70 29 5 61 23 15 -1.48 72 31 46 62 4 36 23 40 12.0 17 263 -1 74 27 25 62 19 11 70 43 47 61 48 50 76 6 50 62 29 54 69 21 50 61 35 24 -1.49 71 21 21 62 17 36 23 40 14.4 18 262 -1 73 14 10 62 33 0 69 35 52 62 1 8 74 50 57 62 44 27 68 15 43 61 47 12 -1.49 70 12 15 62 30 11 23 40 16.8 18 261 -2 72 2 26 62 46 20 68 29 5 62 13 2 73 36 48 62 58 29 67 10 37 61 58 38 -1.49 69 4 19 62 42 22 23 40 19.1 19 260 -2 70 52 3 62 59 13 67 23 19 62 24 36 72 24 13 63 12 0 66 6 25 62 9 44 -1.49 67 57 24 62 54 10 23 40 21.5 19 259 -3 69 42 53 63 11 41 66 18 28 62 35 49 71 13 0 63 25 4 65 3 7 62 20 32 -1.49 66 51 31 63 5 38 23 40 23.8 20 258 -3 68 34 47 63 23 46 65 14 31 62 46 44 70 3 1 63 37 43 64 0 35 62 31 2 -1.49 65 46 29 63 16 46 23 40 26.2 20 257 -3 67 27 44 63 35 30 64 11 20 62 57 20 68 54 7 63 49 57 62 58 47 62 41 15 -1.49 64 42 16 63 27 36 23 40 28.5 21 256 -4 66 21 35 63 46 53 63 8 53 63 7 40 67 46 16 64 1 51 61 57 39 62 51 13 -1.49 63 38 48 63 38 8 23 40 30.9 21 255 -4 65 16 16 63 57 57 62 7 5 63 17 43 66 39 19 64 13 23 60 57 7 63 0 55 -1.49 62 35 59 63 48 24 23 40 33.3 22 254 -4 64 11 42 64 8 43 61 5 54 63 27 31 65 33 13 64 24 36 59 57 9 63 10 22 -1.49 61 33 48 63 58 23 23 40 35.6 22 253 -4 63 7 48 64 19 12 60 5 17 63 37 4 64 27 51 64 35 30 58 57 42 63 19 36 -1.50 60 32 10 64 8 8 23 40 38.0 22 252 -5 62 4 33 64 29 24 59 5 11 63 46 23 63 23 11 64 46 7 57 58 45 63 28 36 -1.50 59 31 5 64 17 38 23 40 40.3 23 251 -5 61 1 53 64 39 21 58 5 33 63 55 29 62 19 9 64 56 28 57 0 14 63 37 23 -1.50 58 30 28 64 26 54 23 40 42.7 23 250 -5 59 59 44 64 49 3 57 6 22 64 4 21 61 15 42 65 6 32 56 2 8 63 45 58 -1.50 57 30 18 64 35 56 23 40 45.1 23 249 -5 58 58 5 64 58 30 56 7 36 64 13 1 60 12 46 65 16 21 55 4 26 63 54 20 -1.50 56 30 34 64 44 45 23 40 47.4 24 247 -6 57 56 53 65 7 43 55 9 13 64 21 28 59 10 19 65 25 55 54 7 5 64 2 31 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48 67 43 47 37 35 11 66 1 14 -1.50 38 24 1 66 57 56 23 41 32.2 29 228 -9 39 25 57 67 26 38 37 25 50 66 29 21 40 18 45 67 49 48 36 41 30 66 6 26 -1.51 37 28 19 67 3 23 23 41 34.6 29 227 -9 38 29 0 67 32 18 36 31 20 66 34 35 39 20 47 67 55 40 35 47 54 66 11 30 -1.51 36 32 43 67 8 40 23 41 36.9 29 226 -9 37 32 9 67 37 49 35 36 54 66 39 40 38 22 52 68 1 22 34 54 22 66 16 26 -1.51 35 37 11 67 13 50 23 41 39.3 29 225 -9 36 35 22 67 43 11 34 42 33 66 44 37 37 25 2 68 6 56 34 0 56 66 21 14 -1.51 34 41 43 67 18 51 23 41 41.7 30 224 -9 35 38 40 67 48 25 33 48 16 66 49 27 36 27 16 68 12 20 33 7 34 66 25 54 -1.51 33 46 19 67 23 43 23 41 44.0 30 223 -10 34 42 0 67 53 30 32 54 3 66 54 8 35 29 33 68 17 36 32 14 15 66 30 27 -1.51 32 50 58 67 28 28 23 41 46.4 30 222 -10 33 45 24 67 58 27 31 59 53 66 58 41 34 31 53 68 22 43 31 21 0 66 34 52 -1.51 31 55 40 67 33 4 23 41 48.7 30 221 -10 32 48 50 68 3 15 31 5 47 67 3 7 33 34 16 68 27 41 30 27 49 66 39 10 -1.51 31 0 24 67 37 33 23 41 51.1 30 220 -10 31 52 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Uncertainty in time = +/- 3 secs Prediction of 2023 Mar 1.1 Data for the target star ------------------------ * name: UCAC4 513-055380 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 13 05 28.1560 DE: +12 26 25.873 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 13 05 28.1560 DE: +12 26 25.873 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.300,0.300) * V mag [mag]: 12.5 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1042) Amazone asteroid class: approx. diameter [km]: 69 approx. diameter ["]: 0.037 distance from Earth [AU]: 2.55580 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#58 date of fit: 2023 Feb 07 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): 0.023", 0.006", 128.427° remarks: * orbital elements for (1042)Amazone : Mean anomaly = 205.7872048667 deg Arg. of pericenter = 298.7698993963 deg Long. of node = 52.3867240263 deg Inclination = 20.7083651934 deg Eccentricity = 0.0875317834 Semimajor axis = 3.2371080658 AU Perihelion dist = 2.9537582236 AU Mag: H = 10.01, G = 0.15 Epoch of elements : MJD 60050.98847222 TDT (2023 Apr 16.9885) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#582023Feb07,4.48,2023,4,16,23.723473,-0.007314,0.831026,-8.649532,-0.076327,0.000796,-0.002235,0.000001,0.000000 -4.0473,12.3149,-175.91,10.30,False UCAC4 513-055380,13.09115445,12.4405201,0.00,12.49,0.00,0.0,0,,13.11072399,12.3149018,2.86,0.00,0,0,0 1042,Amazone,15.27,68.7,2.5558,0,0,-2.031,-0.27,,3.4,0 0,205.6199,2023,4,16,298.7699,52.3867,20.7084,0.08753,3.23711,2.95376,10.01,5.0,0.15 1.402,0.0227,0.0057,128,0.0149,Known errors,-1.00,-1,-1,-1 20230416_055380,60004.05 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Mar 01, 01:18 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org