MPEC 2018-G31 : 2018 GJ
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M.P.E.C. 2018-G31 Issued 2018 Apr. 8, 04:18 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 the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 2018 GJ Observations: K18G00J* C2018 04 05.31738 13 21 53.36 +47 16 34.2 21.0 GUEG031G96 K18G00J C2018 04 05.32268 13 21 48.22 +47 16 12.1 21.3 GUEG031G96 K18G00J C2018 04 05.32798 13 21 43.10 +47 15 50.5 21.1 GUEG031G96 K18G00J C2018 04 05.33330 13 21 38.09 +47 15 27.1 UEG031G96 K18G00J C2018 04 05.35118713 21 20.46 +47 14 10.2 20.6 GUEG031H01 K18G00J C2018 04 05.36228313 21 09.77 +47 13 22.8 21.3 GUEG031H01 K18G00J C2018 04 05.36671813 21 05.46 +47 13 03.6 21.3 GUEG031H01 K18G00J C2018 04 05.37385813 20 58.58 +47 12 33.1 21.1 GUEG031H01 K18G00J C2018 04 05.44582 13 19 49.44 +47 07 19.0 21.4 GUEG031G96 K18G00J C2018 04 05.44645 13 19 48.81 +47 07 16.3 22.0 GUEG031G96 K18G00J C2018 04 05.44709 13 19 48.14 +47 07 13.2 22.0 GUEG031G96 K18G00J C2018 04 06.28415 13 06 28.44 +46 01 10.4 UEG031G96 K18G00J C2018 04 06.28542 13 06 27.22 +46 01 03.9 20.8 GUEG031G96 K18G00J C2018 04 06.28606 13 06 26.56 +46 01 00.7 21.0 GUEG031G96 K18G00J C2018 04 06.29748 13 06 15.17 +46 00 02.6 20.2 GUEG031I52 K18G00J C2018 04 06.29824 13 06 14.30 +45 59 57.3 21.2 GUEG031I52 K18G00J C2018 04 06.29900 13 06 13.50 +45 59 53.2 20.9 GUEG031I52 K18G00J C2018 04 06.29976 13 06 12.63 +45 59 48.9 20.6 GUEG031I52 K18G00J C2018 04 06.30052 13 06 11.87 +45 59 45.3 20.1 GUEG031I52 K18G00J C2018 04 06.30661 13 06 05.68 +45 59 13.7 20.0 GUEG031I52 K18G00J C2018 04 06.30966 13 06 02.55 +45 58 58.7 19.9 GUEG031I52 K18G00J KC2018 04 07.92199 12 38 52.24 +43 12 57.9 21.1 VSEG031L01 K18G00J KC2018 04 07.92701 12 38 46.88 +43 12 22.6 21.2 VSEG031L01 K18G00J KC2018 04 07.93308 12 38 40.54 +43 11 38.5 20.9 VSEG031L01 K18G00J C2018 04 08.13222912 35 16.87 +42 47 18.7 20.4 GUEG031H01 K18G00J C2018 04 08.13591212 35 12.95 +42 46 52.0 20.9 GUEG031H01 K18G00J C2018 04 08.14556012 35 02.70 +42 45 41.6 21.0 GUEG031H01 K18G00J C2018 04 08.15509912 34 52.54 +42 44 31.7 19.9 GUEG031H01 Observer details: G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.5-m reflector + 10K CCD. H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. I52 Steward Observatory, Mt. Lemmon Station. Observer B. M. Africano. Measurers B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD. L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector + CCD. Orbital elements: 2018 GJ Earth MOID = 0.0671 AU Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC M 283.86886 (2000.0) P Q n 0.80271908 Peri. 251.56057 -0.01357489 +0.97531510 a 1.1466397 Node 21.63759 -0.53007065 +0.17988017 e 0.1480845 Incl. 36.70680 -0.84784482 -0.12807650 P 1.23 H 23.4 G 0.15 U 8 Residuals in seconds of arc 180405 G96 0.2+ 0.6- 180405 G96 0.7- 0.2+ 180406 I52 1.4- 0.6+ 180405 G96 0.2- 0.5- 180406 G96 0.3- 0.2+ 180407 L01 0.1- 0.5- 180405 G96 0.2- 0.1+ 180406 G96 0.3+ 0.3+ 180407 L01 0.3- 0.2+ 180405 G96 1.0+ 0.9- 180406 G96 0.2+ 0.4+ 180407 L01 1.0+ 0.4- 180405 H01 0.1+ 0.1- 180406 I52 1.8+ 1.2+ 180408 H01 0.0 0.0 180405 H01 0.2+ 0.1+ 180406 I52 0.7+ 0.1- 180408 H01 0.1- 0.1+ 180405 H01 0.1- 0.0 180406 I52 0.4+ 0.3- 180408 H01 0.0 0.1+ 180405 H01 0.0 0.3+ 180406 I52 0.7- 0.6- 180408 H01 0.0 0.0 180405 G96 0.1+ 0.3+ 180406 I52 0.6- 0.3- 180405 G96 0.1- 0.4+ 180406 I52 0.9- 0.3- Ephemeris: 2018 GJ a,e,i = 1.15, 0.15, 37 q = 0.9768 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2018 03 09 16 09 35.5 +48 33 55 0.4076 1.1638 104.5 55.7 23.8 ... 2018 03 24 15 26 05.0 +50 48 55 0.2630 1.1282 113.6 54.1 22.7 ... 2018 04 01 14 20 23.0 +50 19 41 0.1890 1.1090 121.2 50.4 21.9 ... 2018 04 07 12 54 36.5 +44 54 17 0.1418 1.0946 128.4 45.7 21.1 2018 04 08 12 37 31.5 +43 03 43 0.1353 1.0923 129.5 45.0 21.0 2018 04 09 12 20 01.6 +40 51 03 0.1295 1.0899 130.4 44.4 20.9 ... 2018 04 15 10 38 47.2 +19 52 01 0.1117 1.0759 128.3 47.1 20.6 ... 2018 04 23 09 07 40.9 -10 21 43 0.1409 1.0579 108.2 64.5 21.6 ... 2018 05 08 07 54 47.8 -32 45 46 0.2652 1.0270 86.4 78.7 23.3 A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-G31


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