MPEC 2018-N21 : 2018 NM
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ReadMPEC 2018-N20
ReadMPEC 2018-N22M.P.E.C. 2018-N21 Issued 2018 July 7, 11:20 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 NMObservations: K18N00M C2018 07 04.28845 16 40 23.300-16 34 47.41 20.8 wUEN021F52 K18N00M C2018 07 04.29835 16 40 21.782-16 34 54.77 21.3 wUEN021F52 K18N00M C2018 07 04.30922 16 40 20.116-16 35 02.45 21.0 wUEN021F52 K18N00M C2018 07 04.31916 16 40 18.578-16 35 09.42 21.1 wUEN021F52 K18N00M* C2018 07 04.34559 16 40 14.451-16 35 27.42 21.2 wUEN021F51 K18N00M C2018 07 04.35720 16 40 12.638-16 35 35.02 21.4 wUEN021F51 K18N00M C2018 07 04.36867 16 40 10.827-16 35 42.01 21.4 wUEN021F51 K18N00M ^C2018 07 06.45386616 36 42.776-17 03 28.46 20.86GVEN021568 K18N00M ^C2018 07 06.45481116 36 42.609-17 03 29.21 20.73GVEN021568 K18N00M ^C2018 07 06.45576616 36 42.448-17 03 29.84 20.74GVEN021568 K18N00M |C2018 07 06.95659 16 36 05.16 -17 09 02.3 20.7 GUEN021807 K18N00M |C2018 07 06.95824 16 36 04.87 -17 09 04.3 20.9 GUEN021807 K18N00M |C2018 07 06.96071 16 36 04.42 -17 09 07.7 20.4 GUEN021807 K18N00M C2018 07 07.21851 16 35 22.11 -17 17 54.0 20.9 GUEN021I52 K18N00M C2018 07 07.21927 16 35 21.95 -17 17 55.0 20.7 GUEN021I52 K18N00M C2018 07 07.22162 16 35 21.49 -17 17 57.3 UEN021I52Observer details:568 Mauna Kea. Observers R. Wainscoat, L. Wells, S. Prunet. Measurers R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.807 Cerro Tololo. Observers T. Linder, R. Holmes. 1.00-m f/10.0 astrograph + CCD.F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD.F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Dukes, T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD.I52 Steward Observatory, Mt. Lemmon Station. Observer G. J. Leonard. Measurers B. M. Africano, E. J. Christensen, 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.Orbital elements:2018 NM EarthMOID = 0.0023 AUEpoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPCM 282.36673 (2000.0) P Qn 0.53485470 Peri. 218.41979 +0.84672346 +0.53127112a 1.5030687 Node 109.46605 -0.48036407 +0.78639907e 0.3542209 Incl. 1.73019 -0.22871323 +0.31516265P 1.84 H 26.4 G 0.15 U 5Residuals in seconds of arc180704 F52 0.2+ 0.1- 180704 F51 0.1- 0.1+ 180706 807 0.3- 0.0180704 F52 0.0 0.1- 180706 568 0.0 0.1+ 180707 I52 0.0 0.1-180704 F52 0.0 0.1+ 180706 568 0.1- 0.0 180707 I52 0.0 0.2-180704 F52 0.0 0.1+ 180706 568 0.0 0.1+ 180707 I52 0.4+ 0.1+180704 F51 0.0 0.0 180706 807 0.2+ 0.1-180704 F51 0.1+ 0.1- 180706 807 0.1+ 0.1+Ephemeris:2018 NM a,e,i = 1.50, 0.35, 2 q = 0.9707Date TT R. A. (2000) Decl. Delta r Elong. Phase V2018 06 07 17 01 19.3 -16 05 17 0.1707 1.1845 173.4 5.7 23.4...2018 06 22 16 52 10.0 -15 43 05 0.1002 1.1120 162.0 16.4 22.5...2018 06 30 16 45 19.6 -16 01 12 0.06717 1.0771 153.3 25.0 21.9...2018 07 06 16 37 40.6 -16 54 36 0.04350 1.0531 146.3 32.4 21.12018 07 07 16 35 49.7 -17 10 58 0.03962 1.0494 145.0 33.8 20.92018 07 08 16 33 39.7 -17 31 08 0.03575 1.0457 143.6 35.2 20.7...2018 07 14 15 56 26.2 -23 43 07 0.01295 1.0250 130.6 48.9 18.8...2018 07 22 05 20 08.4 +07 48 19 0.01870 1.0021 41.6 137.7 24.3...2018 08 06 04 59 55.2 +13 44 15 0.07644 0.9765 58.4 117.7 25.4A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-N21
ReadMPEC 2018-N20 ReadMPEC 2018-N22Enter anMPEC number in oneof the following forms:
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