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M.P.E.C. 2018-U55 Issued 2018 Oct. 22, 10:38 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using theTamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 2018 US1Observations: K18U01S* C2018 10 21.34712 03 13 04.66 -06 15 55.5 16.6 GVEU055703 K18U01S C2018 10 21.34724 03 13 05.14 -06 15 41.7 16.4 GVEU055703 K18U01S C2018 10 21.34735 03 13 05.64 -06 15 28.4 16.6 GVEU055703 K18U01S C2018 10 21.34747 03 13 06.10 -06 15 14.3 VEU055703 K18U01S C2018 10 21.36897 03 14 35.56 -05 33 03.8 17.6 GVEU055I52 K18U01S C2018 10 21.36939 03 14 37.29 -05 32 14.5 17.6 GVEU055I52 K18U01S C2018 10 21.36980 03 14 39.05 -05 31 25.6 17.3 GVEU055I52 K18U01S C2018 10 21.37021 03 14 40.76 -05 30 37.5 17.1 GVEU055I52 K18U01S C2018 10 21.39190203 16 06.62 -04 48 14.0 16.6 GVEU055H01 K18U01S C2018 10 21.39593903 16 23.62 -04 40 12.4 17.6 GVEU055H01 K18U01S C2018 10 21.40843303 17 16.37 -04 15 20.4 17.0 GVEU055H01 K18U01S KC2018 10 21.41405 03 17 28.88 -04 05 33.9 16.7 GUEU055734 K18U01S C2018 10 21.41450703 17 42.08 -04 03 13.5 16.2 GVEU055H01 K18U01S KC2018 10 21.41485 03 17 32.33 -04 03 58.2 16.6 GUEU055734 K18U01S KC2018 10 21.41551 03 17 35.18 -04 02 39.2 16.9 GUEU055734 K18U01S KC2018 10 21.41617 03 17 38.04 -04 01 19.6 16.3 GUEU055734 K18U01S C2018 10 21.42965 03 18 50.62 -03 32 25.5 16.9 GVEU055I52 K18U01S C2018 10 21.43005 03 18 52.33 -03 31 36.6 16.7 GVEU055I52 K18U01S C2018 10 21.43047 03 18 54.11 -03 30 46.4 17.4 GVEU055I52 K18U01S C2018 10 21.43089 03 18 55.88 -03 29 56.5 17.4 GVEU055I52 K18U01S KC2018 10 21.84886 03 54 20.19 +10 38 25.5 17.0 RqEU055A17 K18U01S KC2018 10 21.84956 03 54 23.67 +10 39 50.9 16.6 RqEU055A17 K18U01S KC2018 10 21.85461 03 54 48.11 +10 50 08.2 17.3 RqEU055A17 K18U01S KC2018 10 21.85615 03 54 55.59 +10 53 17.4 16.8 RqEU055A17 K18U01S KC2018 10 21.85787 03 55 03.93 +10 56 47.2 16.5 RqEU055A17 K18U01S KC2018 10 21.98093904 04 54.73 +15 03 07.2 17.1 GVEU055J95 K18U01S KC2018 10 21.98562804 05 16.75 +15 12 22.4 17.5 GVEU055J95 K18U01S KC2018 10 21.98923604 05 33.72 +15 19 29.2 17.5 GVEU055J95 K18U01S KC2018 10 21.99979604 06 23.22 +15 40 14.7 17.6 GVEU055J95 K18U01S KC2018 10 22.00242104 06 35.51 +15 45 23.3 17.2 GVEU055J95 K18U01S KC2018 10 22.09067304 13 07.10 +18 37 15.3 17.3 GVEU055L01 K18U01S KC2018 10 22.09236904 13 14.88 +18 40 25.6 17.6 GVEU055L01 K18U01S KC2018 10 22.09406404 13 22.66 +18 43 35.9 17.8 GVEU055L01 K18U01S KC2018 10 22.09569204 13 30.14 +18 46 39.2 17.5 GVEU055L01 K18U01S KC2018 10 22.12851 04 17 39.70 +19 46 21.5 16.7 RVEU055932 K18U01S KC2018 10 22.14420 04 18 54.62 +20 15 43.3 16.1 RVEU055932 K18U01S KC2018 10 22.15512 04 19 46.42 +20 36 02.2 16.9 RVEU055932 K18U01S KC2018 10 22.16744 04 20 44.57 +20 58 48.6 16.5 RVEU055932Observer details:703 Catalina Sky Survey. Observer G. J. Leonard. Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 0.68-m Schmidt + 10K CCD.734 Farpoint Observatory. Observer G. Hug. 0.7-m reflector + CCD.932 John J. McCarthy Obs., New Milford. Observer M. Robson. 0.4-m f/7.4 Schmidt-Cassegrain + CCD.A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert. 0.36-m f/6 Schmidt-Cassegrain + CCD.H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard. Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain + CCD.L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector + CCD.Orbital elements:2018 US1 EarthMOID = 0.0048 AUEpoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPCM 83.19631 (2000.0) P Qn 0.46261781 Peri. 8.20095 +0.80091766 -0.59504224a 1.6557235 Node 28.64493 +0.54116171 +0.67163117e 0.3977085 Incl. 8.00407 +0.25627115 +0.44140265P 2.13 H 27.1 G 0.15 U 5Residuals in seconds of arc181021 703 0.1- 0.1- 181021 734 (1.7+ 2.9+) 181021 J95 0.3- 0.0181021 703 0.4- 0.4- 181021 734 (1.7+ 2.8+) 181021 J95 0.1+ 0.1+181021 703 0.2+ 0.0 181021 734 (1.9+ 3.3+) 181021 J95 0.1- 0.1-181021 703 0.3- 0.0 181021 I52 0.1- 0.5- 181022 J95 0.1- 0.4-181021 I52 0.1- 0.3+ 181021 I52 0.0 0.3+ 181022 L01 0.3+ 0.4+181021 I52 0.4- 0.0 181021 I52 0.1- 0.0 181022 L01 0.2+ 0.1-181021 I52 0.4+ 0.4+ 181021 I52 0.3- 0.7- 181022 L01 0.0 0.2-181021 I52 0.4+ 0.0 181021 A17 0.5- 0.7+ 181022 L01 0.0 0.4+181021 H01 0.1+ 0.1- 181021 A17 0.7+ 0.4+ 181022 932 0.4- 0.0181021 H01 0.3+ 0.5+ 181021 A17 0.0 0.5- 181022 932 0.1- 0.3-181021 H01 0.3+ 0.4+ 181021 A17 0.3+ 0.3+ 181022 932 0.1- 0.3+181021 734 (1.7+ 3.1+) 181021 A17 0.6+ 0.3- 181022 932 0.2+ 0.4+181021 H01 0.1- 0.1- 181021 J95 0.1+ 0.1+Ephemeris:2018 US1 a,e,i = 1.66, 0.40, 8 q = 0.9972Date TT R. A. (2000) Decl. Delta r Elong. Phase V2018 09 22 22 45 17.6 -56 00 40 0.1182 1.0723 122.7 51.9 24.5...2018 10 07 22 57 35.2 -57 03 51 0.05944 1.0249 113.6 63.3 23.3...2018 10 15 23 38 51.7 -54 52 17 0.02774 1.0087 113.4 65.1 21.6...2018 10 21 02 47 00.6 -16 30 28 0.0065141.0011 148.5 31.3 17.52018 10 22 04 05 45.7 +15 53 52 0.0060221.0003 145.5 34.3 17.42018 10 23 05 27 00.8 +40 20 19 0.0079480.9995 124.0 55.6 18.6...2018 10 29 08 51 15.4 +59 16 44 0.03019 0.9973 96.4 81.8 22.4...2018 11 06 09 36 31.3 +59 40 55 0.06161 1.0009 97.1 79.4 23.8...2018 11 21 09 50 11.1 +59 53 26 0.1177 1.0273 106.3 67.4 24.9A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-U55
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