IOTA/IOTA-ES occultation update for (1030) Vitja / UCAC4 453-055096 event on 2023 May 16, 10:09 UT Visible from NE Australia, New Zealand Summary ------- On 2023 May 16 UT, the 60.7 km diameter asteroid (1030) Vitja will occult a 12.4 mag star in the constellation Virgo for observers along a path across NE Australia, New Zealand. In the case of an occultation, the combined light of the asteroid and the star will drop by 2.43 mag to 14.68 mag (the magnitude of the asteroid) for at most 8.540 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: 98 * date and approx. time of event: 2023 May 16, 09:56 - 2023 May 16, 10:22 * geocentric midpoint of event [JD]: 2460080.92300625 * magnitude of target star: 12.37 * magnitude drop [mag]: 2.43 * estimated maximum duration [s]: 8.540 * Moon: 12 % sunlit, 169° distance * Sun: 145° distance * rough path description: NE Australia, New Zealand The occultation path -------------------- * approximate projected width [km]: 72 * 1 sigma uncertainty interval [path widths]: +/- 0.37 * 1 sigma uncertainty interval [seconds]: +/- 4.6 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.029, +/- 0.003) * 1 sigma uncertainty ellipse (major, minor, PA): (0.029", 0.001", 96°) * approx speed of asteroid's shadow [km/s]: 7.1110 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of UCAC4 453-055096 by 1030 Vitja on 2023 May 16 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 85 0 0 7 28 22 10 21 41.0 0 90 29 7 47 56 7 8 43 8 2 17 6 54 14 .... 86 0 0 7 28 0 10 21 40.7 1 90 29 7 47 34 7 8 21 8 1 54 6 53 52 0.43 87 0 0 7 26 49 10 21 40.1 2 90 28 7 46 23 7 7 11 8 0 43 6 52 42 0.52 88 0 0 7 24 51 10 21 39.2 3 90 27 7 44 25 7 5 13 7 58 45 6 50 44 0.56 89 0 0 7 22 5 10 21 37.9 4 90 26 7 41 39 7 2 27 7 55 59 6 47 57 0.58 90 0 0 7 18 31 10 21 36.3 5 90 25 7 38 5 6 58 52 7 52 26 6 44 23 0.59 91 0 0 7 14 10 10 21 34.5 6 90 24 7 33 45 6 54 30 7 48 6 6 40 1 0.60 92 0 0 7 9 1 10 21 32.3 7 91 23 7 28 36 6 49 21 7 42 58 6 34 50 0.60 93 0 0 7 3 4 10 21 29.8 8 91 22 7 22 41 6 43 23 7 37 3 6 28 52 0.61 94 0 0 6 56 21 10 21 26.9 9 91 21 7 15 59 6 36 38 7 30 22 6 22 6 0.61 95 0 0 6 48 50 10 21 23.8 10 91 20 7 8 30 6 29 6 7 22 54 6 14 33 0.61 96 0 0 6 40 32 10 21 20.3 11 91 19 7 0 13 6 20 47 7 14 39 6 6 13 0.61 97 0 0 6 31 27 10 21 16.6 12 91 18 6 51 10 6 11 40 7 5 37 5 57 4 0.62 98 0 0 6 21 35 10 21 12.5 13 91 17 6 41 20 6 1 46 6 55 48 5 47 9 0.62 99 0 0 6 10 56 10 21 8.1 14 91 16 6 30 43 5 51 4 6 45 13 5 36 25 0.62 100 0 0 5 59 29 10 21 3.4 15 91 15 6 19 19 5 39 35 6 33 50 5 24 55 0.62 101 0 0 5 47 16 10 20 58.4 16 91 14 6 7 8 5 27 19 6 21 41 5 12 37 0.62 102 0 0 5 34 15 10 20 53.1 17 91 13 5 54 10 5 14 16 6 8 46 4 59 31 0.62 103 0 0 5 20 27 10 20 47.4 18 91 12 5 40 25 5 0 25 5 55 3 4 45 38 0.62 104 0 0 5 5 52 10 20 41.5 19 91 11 5 25 53 4 45 47 5 40 33 4 30 57 0.62 105 0 0 4 50 30 10 20 35.2 20 91 10 5 10 34 4 30 21 5 25 17 4 15 29 0.62 106 0 0 4 34 20 10 20 28.6 21 91 9 4 54 29 4 14 8 5 9 14 3 59 13 0.62 107 0 0 4 17 24 10 20 21.7 22 91 8 4 37 36 3 57 7 4 52 23 3 42 10 0.62 108 0 0 3 59 40 10 20 14.5 23 91 7 4 19 55 3 39 19 4 34 46 3 24 19 0.62 109 0 0 3 41 8 10 20 6.9 24 91 6 4 1 28 3 20 43 4 16 22 3 5 40 0.62 110 0 0 3 21 49 10 19 59.1 25 91 5 3 42 13 3 1 20 3 57 10 2 46 13 0.62 111 0 0 3 1 42 10 19 50.9 26 91 4 3 22 11 2 41 9 3 37 12 2 25 58 0.62 112 0 0 2 40 48 10 19 42.4 27 91 3 3 1 22 2 20 10 3 16 26 2 4 56 0.62 113 0 0 2 19 6 10 19 33.6 28 91 2 2 39 45 1 58 23 2 54 52 1 43 6 0.62 114 0 0 1 56 37 10 19 24.5 29 91 1 2 17 21 1 35 48 2 32 32 1 20 27 0.62 115 0 0 1 33 20 10 19 15.0 30 90 0 1 54 9 1 12 26 2 9 24 0 57 1 0.62 116 0 0 1 9 15 10 19 5.3 31 90 -1 1 30 10 0 48 15 1 45 29 0 32 46 0.62 117 0 0 0 44 22 10 18 55.2 32 90 -2 1 5 23 0 23 17 1 20 46 0 7 43 0.62 118 0 0 0 18 42 10 18 44.8 33 90 -3 0 39 48 - 0 2 30 0 55 15 - 0 18 8 0.62 119 0 0 - 0 7 47 10 18 34.0 34 89 -4 0 13 26 - 0 29 4 0 28 57 - 0 44 47 0.62 120 0 0 - 0 35 3 10 18 23.0 35 89 -5 - 0 13 44 - 0 56 26 0 1 52 - 1 12 14 0.62 121 0 0 - 1 3 6 10 18 11.7 36 89 -6 - 0 41 42 - 1 24 37 - 0 26 1 - 1 40 29 0.62 122 0 0 - 1 31 58 10 18 0.0 36 88 -7 - 1 10 27 - 1 53 35 - 0 54 41 - 2 9 32 0.62 123 0 0 - 2 1 37 10 17 48.0 37 88 -9 - 1 39 59 - 2 23 21 - 1 24 8 - 2 39 24 0.62 124 0 0 - 2 32 4 10 17 35.7 38 88 -10 - 2 10 19 - 2 53 55 - 1 54 23 - 3 10 3 0.62 125 0 0 - 3 3 19 10 17 23.1 39 87 -11 - 2 41 26 - 3 25 17 - 2 25 25 - 3 41 30 0.62 126 0 0 - 3 35 20 10 17 10.2 40 86 -12 - 3 13 21 - 3 57 26 - 2 57 14 - 4 13 45 0.62 127 0 0 - 4 8 10 10 16 57.0 41 86 -13 - 3 46 2 - 4 30 23 - 3 29 50 - 4 46 48 0.62 128 0 0 - 4 41 46 10 16 43.5 42 85 -14 - 4 19 30 - 5 4 7 - 4 3 13 - 5 20 37 0.62 129 0 0 - 5 16 9 10 16 29.7 43 85 -15 - 4 53 46 - 5 38 38 - 4 37 22 - 5 55 15 0.62 130 0 0 - 5 51 18 10 16 15.6 44 84 -16 - 5 28 47 - 6 13 56 - 5 12 18 - 6 30 39 0.62 131 0 0 - 6 27 15 10 16 1.2 45 83 -17 - 6 4 35 - 6 50 1 - 5 48 0 - 7 6 49 0.62 132 0 0 - 7 3 57 10 15 46.5 45 82 -18 - 6 41 9 - 7 26 51 - 6 24 27 - 7 43 46 0.62 133 0 0 - 7 41 24 10 15 31.5 46 81 -19 - 7 18 28 - 8 4 28 - 7 1 40 - 8 21 29 0.62 134 0 0 - 8 19 37 10 15 16.3 47 80 -20 - 7 56 32 - 8 42 50 - 7 39 38 - 8 59 58 0.63 135 0 0 - 8 58 35 10 15 0.8 48 79 -21 - 8 35 21 - 9 21 57 - 8 18 20 - 9 39 12 0.63 136 0 0 - 9 38 18 10 14 45.0 49 78 -22 - 9 14 54 -10 1 49 - 8 57 47 -10 19 11 0.63 137 0 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0 0 -50 30 3 10 0 52.9 39 352 -54 -50 0 4 -51 0 19 -49 38 12 -51 22 45 0.68 -173 0 0 -51 13 37 10 0 41.9 38 351 -54 -50 43 41 -51 43 50 -50 21 51 -52 6 14 0.68 -172 0 0 -51 56 23 10 0 31.3 37 350 -53 -51 26 30 -52 26 32 -51 4 43 -52 48 53 0.68 -171 0 0 -52 38 19 10 0 21.1 37 349 -53 -52 8 30 -53 8 23 -51 46 46 -53 30 41 0.68 -170 0 0 -53 19 24 10 0 11.2 36 348 -53 -52 49 41 -53 49 23 -52 28 0 -54 11 37 0.68 -169 0 0 -53 59 37 10 0 1.7 35 347 -52 -53 30 0 -54 29 31 -53 8 23 -54 51 41 0.68 -168 0 0 -54 38 59 9 59 52.6 34 345 -52 -54 9 28 -55 8 46 -53 47 55 -55 30 51 0.68 -167 0 0 -55 17 28 9 59 43.8 33 344 -52 -54 48 3 -55 47 8 -54 26 36 -56 9 7 0.68 -166 0 0 -55 55 4 9 59 35.3 33 343 -51 -55 25 47 -56 24 36 -55 4 24 -56 46 30 0.68 -165 0 0 -56 31 47 9 59 27.2 32 342 -51 -56 2 37 -57 1 11 -55 41 21 -57 22 58 0.68 -164 0 0 -57 7 36 9 59 19.4 31 341 -51 -56 38 35 -57 36 52 -56 17 25 -57 58 32 0.68 -163 0 0 -57 42 32 9 59 11.9 30 340 -50 -57 13 41 -58 11 39 -56 52 37 -58 33 13 0.68 -162 0 0 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-138 0 0 -67 56 19 9 57 21.1 16 317 -41 -67 32 15 -68 20 32 -67 14 37 -68 38 26 0.67 -137 0 0 -68 12 10 9 57 18.8 16 316 -40 -67 48 16 -68 36 12 -67 30 47 -68 53 57 0.67 -136 0 0 -68 27 29 9 57 16.6 15 315 -40 -68 3 46 -68 51 19 -67 46 24 -69 8 56 0.67 -135 0 0 -68 42 16 9 57 14.5 15 314 -39 -68 18 44 -69 5 56 -68 1 30 -69 23 25 0.67 -134 0 0 -68 56 34 9 57 12.4 14 313 -39 -68 33 12 -69 20 3 -68 16 6 -69 37 24 0.67 -133 0 0 -69 10 22 9 57 10.5 14 312 -39 -68 47 10 -69 33 41 -68 30 12 -69 50 54 0.67 -132 0 0 -69 23 42 9 57 8.7 14 311 -38 -69 0 40 -69 46 50 -68 43 49 -70 3 56 0.67 -131 0 0 -69 36 33 9 57 6.9 13 310 -38 -69 13 41 -69 59 32 -68 56 57 -70 16 30 0.67 -130 0 0 -69 48 58 9 57 5.2 13 309 -38 -69 26 16 -70 11 47 -69 9 38 -70 28 38 0.67 -129 0 0 -70 0 56 9 57 3.7 12 308 -37 -69 38 23 -70 23 36 -69 21 53 -70 40 19 0.67 -128 0 0 -70 12 29 9 57 2.1 12 307 -37 -69 50 5 -70 34 59 -69 33 41 -70 51 36 0.66 -127 0 0 -70 23 36 9 57 0.7 12 306 -37 -70 1 21 -70 45 57 -69 45 4 -71 2 28 0.66 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14 37 9 56 47.0 7 294 -33 -71 53 56 -72 35 23 -71 38 47 -72 50 42 0.66 -113 0 0 -72 20 52 9 56 46.3 7 293 -33 -72 0 16 -72 41 32 -71 45 12 -72 56 47 0.66 -112 0 0 -72 26 48 9 56 45.6 6 292 -32 -72 6 19 -72 47 23 -71 51 18 -73 2 34 0.66 -111 0 0 -72 32 28 9 56 45.0 6 291 -32 -72 12 3 -72 52 57 -71 57 6 -73 8 4 0.66 -110 0 0 -72 37 50 9 56 44.4 6 290 -32 -72 17 30 -72 58 15 -72 2 37 -73 13 18 0.66 -109 0 0 -72 42 56 9 56 43.8 5 289 -32 -72 22 41 -73 3 16 -72 7 51 -73 18 15 0.66 -108 0 0 -72 47 45 9 56 43.3 5 288 -31 -72 27 34 -73 8 0 -72 12 47 -73 22 57 0.66 -107 0 0 -72 52 18 9 56 42.8 5 287 -31 -72 32 12 -73 12 29 -72 17 28 -73 27 22 0.66 -106 0 0 -72 56 35 9 56 42.3 5 286 -31 -72 36 33 -73 16 42 -72 21 52 -73 31 32 0.66 -105 0 0 -73 0 37 9 56 41.9 4 285 -30 -72 40 38 -73 20 40 -72 26 0 -73 35 27 0.67 -104 0 0 -73 4 23 9 56 41.5 4 284 -30 -72 44 28 -73 24 22 -72 29 52 -73 39 7 0.67 -103 0 0 -73 7 54 9 56 41.1 4 283 -30 -72 48 2 -73 27 50 -72 33 29 -73 42 32 0.67 -102 0 0 -73 11 9 9 56 40.8 3 282 -30 -72 51 21 -73 31 2 -72 36 50 -73 45 42 0.67 -101 0 0 -73 14 10 9 56 40.5 3 281 -29 -72 54 25 -73 34 0 -72 39 56 -73 48 38 0.67 -100 0 0 -73 16 56 9 56 40.2 3 280 -29 -72 57 13 -73 36 44 -72 42 47 -73 51 19 0.67 - 99 0 0 -73 19 28 9 56 40.0 2 280 -29 -72 59 48 -73 39 13 -72 45 23 -73 53 47 0.68 - 98 0 0 -73 21 45 9 56 39.8 2 279 -29 -73 2 7 -73 41 28 -72 47 44 -73 56 0 0.68 - 97 0 0 -73 23 48 9 56 39.6 2 278 -28 -73 4 12 -73 43 28 -72 49 50 -73 57 59 0.69 - 96 0 0 -73 25 37 9 56 39.4 2 277 -28 -73 6 2 -73 45 15 -72 51 42 -73 59 44 0.69 - 95 0 0 -73 27 11 9 56 39.3 1 276 -28 -73 7 38 -73 46 48 -72 53 19 -74 1 16 0.71 - 94 0 0 -73 28 32 9 56 39.2 1 275 -28 -73 9 0 -73 48 7 -72 54 42 -74 2 34 0.72 - 93 0 0 -73 29 38 9 56 39.1 1 274 -27 -73 10 8 -73 49 12 -72 55 51 -74 3 39 0.76 - 92 0 0 -73 30 31 9 56 39.0 0 273 -27 -73 11 2 -73 50 4 -72 56 45 -74 4 30 0.83 - 91 0 0 -73 31 10 9 56 39.0 0 272 -27 -73 11 41 -73 50 42 -72 57 25 -74 5 7 1.13 Uncertainty in time = +/- 6 secs Prediction of 2023 Apr 29.2 Data for the target star ------------------------ * name: UCAC4 453-055096 * constellation : Virgo * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 13 34 22.9862 DE: +00 29 32.366 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 13 34 22.9860 DE: +00 29 32.367 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.100,0.100) * V mag [mag]: 12.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (1030) Vitja asteroid class: approx. diameter [km]: 61 approx. diameter ["]: 0.045 distance from Earth [AU]: 1.86520 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#57 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): 0.029", 0.001", 96.232° remarks: * orbital elements for (1030)Vitja : Mean anomaly = 16.4016298792 deg Arg. of pericenter = 5.2529411732 deg Long. of node = 187.8055519470 deg Inclination = 14.7763179419 deg Eccentricity = 0.1227973897 Semimajor axis = 3.1214144369 AU Perihelion dist = 2.7381128920 AU Mag: H = 10.38, G = 0.15 Epoch of elements : MJD 60080.42298611 TDT (2023 May 16.4230) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#572023Apr24,8.54,2023,5,16,10.152150,-0.351739,-0.414726,-3.058090,2.599546,0.002568,-0.001866,0.000001,0.000000 177.7465,0.3722,26.82,19.09,False UCAC4 453-055096,13.57305172,0.4923237,0.00,12.37,0.00,0.0,4,,13.59311896,0.3721508,2.43,0.00,0,0,0 1030,Vitja,14.68,60.7,1.8652,0,0,-0.961,12.25,,3.0,0 0,16.3260,2023,5,16,5.2529,187.8056,14.7763,0.12280,3.12141,2.73811,10.40,5.0,0.15 1.368,0.0293,0.0013,96,0.0165,Known errors,-1.00,-1,-1,-1 20230516_055096,60063.18 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Apr 29, 04:26 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org