[Iaude] MPEC Y05: 2018 XY4 [a=1.66,e=0.44,i=2.7,H=25.8]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Dec 15 23:33:16 EST 2018


M.P.E.C. 2018-Y05                                Issued 2018 Dec. 16, 04:30 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2018 XY4
 
Observations:
     K18X04Y* C2018 12 13.40092 03 55 11.405-00 14 28.77         21.6 wUEY005F51
     K18X04Y  C2018 12 13.41282 03 55 17.076-00 12 56.54         21.2 wUEY005F51
     K18X04Y  C2018 12 13.42469 03 55 22.742-00 11 24.64         21.1 wUEY005F51
     K18X04Y  C2018 12 14.18725 04 01 47.04 +01 22 49.8          21.8 GVEY005I52
     K18X04Y  C2018 12 14.18965 04 01 48.16 +01 23 06.5          20.9 GVEY005I52
     K18X04Y  C2018 12 14.19239 04 01 49.30 +01 23 27.5          22.0 GVEY005I52
     K18X04Y  C2018 12 14.19406 04 01 50.00 +01 23 37.2          21.2 GVEY005I52
     K18X04Y ^C2018 12 14.36515604 03 09.563+01 44 11.89         22.15GVEY005568
     K18X04Y ^C2018 12 14.36616104 03 09.995+01 44 18.99         21.97GVEY005568
     K18X04Y KC2018 12 15.85003204 14 00.37 +04 24 41.5          21.8 GVEY005L01
     K18X04Y KC2018 12 15.85110804 14 00.79 +04 24 48.3          21.6 GVEY005L01
     K18X04Y KC2018 12 15.85477404 14 02.16 +04 25 10.0          21.5 GVEY005L01
     K18X04Y KC2018 12 15.85520504 14 02.35 +04 25 12.7          21.5 GVEY005L01
 
Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, A. Petric.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, J. Fairlamb,
    H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, 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 XY4                                                 Earth MOID = 0.0347 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  82.24633              (2000.0)            P               Q
n   0.46217896     Peri.  274.05103     +0.89248666     -0.44896703
a   1.6567714      Node   112.63105     +0.43031302     +0.81848312
e   0.4410971      Incl.    2.70409     +0.13527113     +0.35848849
P   2.13           H   25.8           G   0.15           U   8
Residuals in seconds of arc
181213 F51  0.0   0.0     181214 I52  0.3-  1.0+    181215 L01  0.1+  0.3+
181213 F51  0.0   0.0     181214 I52  0.9-  1.3-    181215 L01  0.2-  0.1-
181213 F51  0.0   0.0     181214 568  0.3+  0.1+    181215 L01  0.2+  0.0
181214 I52  0.0   0.1+    181214 568  0.3+  0.1+
181214 I52  0.8+  0.4-    181215 L01  0.1-  0.0

Ephemeris:
2018 XY4                 a,e,i = 1.66, 0.44, 3                   q = 0.9260
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 16    20 09 38.2 -41 24 03   0.1137  0.9449    64.1   109.7    25.1
...
2018 12 01    00 20 35.5 -38 32 53   0.05692 0.9943    96.6    80.1    22.4
...
2018 12 09    03 06 30.7 -12 02 26   0.06288 1.0306   135.2    42.3    21.5
...
2018 12 15    04 07 58.3 +02 56 31   0.08637 1.0613   151.9    25.9    21.8
2018 12 16    04 14 59.1 +04 40 36   0.09120 1.0666   153.6    24.2    21.9
2018 12 17    04 21 21.6 +06 14 36   0.09621 1.0721   155.0    22.8    22.0
...
2018 12 23    04 49 55.9 +13 01 23   0.1295  1.1059   159.7    18.0    22.5
...
2018 12 31    05 13 12.5 +18 00 53   0.1803  1.1538   159.3    17.5    23.3
...
2019 01 15    05 40 10.9 +22 23 23   0.2937  1.2489   151.1    22.3    24.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y05



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