[Iaude] MPEC X88: 2018 XK2 [a=2.65,e=0.60,i=3.8,H=24.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Dec 12 10:29:18 EST 2018


M.P.E.C. 2018-X88                                Issued 2018 Dec. 12, 15:26 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 XK2
 
Observations:
     K18X02K* C2018 12 10.08348 02 19 16.59 +29 57 55.8          20.7 GVEX088G96
     K18X02K  C2018 12 10.08906 02 19 18.70 +29 58 32.1          20.9 GVEX088G96
     K18X02K  C2018 12 10.09466 02 19 20.79 +29 59 08.1          20.9 GVEX088G96
     K18X02K  C2018 12 10.10023 02 19 22.88 +29 59 43.9          20.9 GVEX088G96
     K18X02K  C2018 12 10.25442302 20 20.39 +30 15 56.5          20.2 GVEX088H01
     K18X02K  C2018 12 10.25776202 20 21.66 +30 16 17.2          20.2 GVEX088H01
     K18X02K  C2018 12 10.27544202 20 28.43 +30 18 06.6          20.1 GVEX088H01
     K18X02K  C2018 12 10.27881102 20 29.73 +30 18 27.5          20.2 GVEX088H01
     K18X02K  C2018 12 10.33224 02 20 50.76 +30 24 00.2          20.6 GVEX088I52
     K18X02K  C2018 12 10.33391 02 20 51.39 +30 24 10.3          20.8 GVEX088I52
     K18X02K  C2018 12 10.33558 02 20 52.07 +30 24 20.7          20.5 GVEX088I52
     K18X02K  C2018 12 10.33724 02 20 52.72 +30 24 30.9          20.4 GVEX088I52
     K18X02K KC2018 12 10.74545602 23 55.55 +31 07 39.9          21.0 GVEX088L01
     K18X02K KC2018 12 10.74588702 23 55.70 +31 07 42.9          21.0 GVEX088L01
     K18X02K IC2018 12 10.75128302 23 57.92 +31 08 18.0          20.8 GVEX088L01
     K18X02K HC2018 12 10.91519 02 25 04.78 +31 25 50.3                VEX088204
     K18X02K HC2018 12 10.93029 02 25 11.00 +31 27 25.9          20.5 GVEX088204
     K18X02K KC2018 12 11.03648802 26 03.82 +31 38 57.3          20.5 VuEX088H21
     K18X02K KC2018 12 11.04988802 26 09.35 +31 40 25.4          21.0 VuEX088H21
     K18X02K KC2018 12 11.05046902 26 09.58 +31 40 29.2          20.9 VuEX088H21
     K18X02K  C2018 12 12.10466 02 34 23.18 +33 34 33.6          20.6 GVEX088I52
     K18X02K  C2018 12 12.10715 02 34 24.35 +33 34 50.4          20.7 GVEX088I52
     K18X02K  C2018 12 12.10840 02 34 24.92 +33 34 58.0          20.9 GVEX088I52
 
Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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.  1.5-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 Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    astrograph + 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, 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 XK2                                                 Earth MOID = 0.0743 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  30.11901              (2000.0)            P               Q
n   0.22838297     Peri.   26.48169     +0.13968626     -0.98871583
a   2.6506980      Node    55.53449     +0.89644711     +0.10305939
e   0.6026291      Incl.    3.76360     +0.42055955     +0.10871879
P   4.32           H   24.6           G   0.15           U   5
Residuals in seconds of arc
181210 G96  0.2+  0.1+    181210 I52  0.1+  0.2-    181210 204  0.3+  0.1-
181210 G96  0.2+  0.3+    181210 I52  0.3-  0.4-    181211 H21  0.0   0.2+
181210 G96  0.1-  0.2+    181210 I52  0.0   0.2-    181211 H21  0.1-  0.5+
181210 G96  0.2-  0.1+    181210 I52  0.1-  0.1-    181211 H21  0.2-  0.5+
181210 H01  0.1+  0.0     181210 L01  0.1-  0.3-    181212 I52  0.4-  0.1+
181210 H01  0.0   0.0     181210 L01  0.4-  0.1-    181212 I52  0.2+  0.2+
181210 H01  0.0   0.1-    181210 L01  0.0   0.2-    181212 I52  0.2+  0.5-
181210 H01  0.0   0.0     181210 204  0.0   0.2-

Ephemeris:
2018 XK2                 a,e,i = 2.65, 0.60, 4                   q = 1.0533
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 12    01 12 19.8 +02 37 37   0.1735  1.1409   148.1    27.3    22.3
...
2018 11 27    01 26 36.3 +12 07 26   0.1206  1.0820   140.0    35.9    21.6
...
2018 12 05    01 51 13.2 +21 45 19   0.09872 1.0631   140.0    36.5    21.2
...
2018 12 11    02 25 44.0 +31 35 17   0.08720 1.0553   142.6    34.5    20.8
2018 12 12    02 33 28.3 +33 23 10   0.08583 1.0546   143.2    34.0    20.8
2018 12 13    02 41 53.9 +35 12 12   0.08465 1.0540   143.8    33.4    20.8
...
2018 12 19    03 48 52.9 +45 31 17   0.08185 1.0539   147.6    30.0    20.6
...
2018 12 27    05 51 44.1 +52 32 14   0.09024 1.0627   150.3    27.3    20.7
...
2019 01 11    08 21 47.2 +46 34 36   0.1347  1.1051   153.0    23.8    21.6

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X88



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