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  • MPEC 2018-K42 : 2018 KA1

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    M.P.E.C. 2018-K42                                Issued 2018 May 20, 16:49 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 KA1
    
    Observations:
         K18K01A* C2018 05 16.32343 15 28 29.46 -01 07 51.3          20.7 GUEK042G96
         K18K01A  C2018 05 16.33380 15 28 28.49 -01 07 55.3          21.1 GUEK042G96
         K18K01A  C2018 05 16.33897 15 28 27.97 -01 07 57.8          20.8 GUEK042G96
         K18K01A  C2018 05 16.38516 15 28 23.86 -01 08 18.7          21.5 GUEK042I52
         K18K01A  C2018 05 16.38803 15 28 23.59 -01 08 19.5          21.6 GUEK042I52
         K18K01A  C2018 05 16.39091 15 28 23.31 -01 08 20.9          20.7 GUEK042I52
         K18K01A  C2018 05 16.39535 15 28 22.97 -01 08 22.7          22.1 GUEK042I52
         K18K01A  C2018 05 16.40747115 28 21.85 -01 08 28.3          21.1 GVEK042H01
         K18K01A  C2018 05 16.41520315 28 21.16 -01 08 31.8          21.4 GVEK042H01
         K18K01A  C2018 05 16.42293415 28 20.48 -01 08 35.1          21.2 GVEK042H01
         K18K01A  C2018 05 16.43066715 28 19.79 -01 08 38.5          21.3 GVEK042H01
         K18K01A |C2018 05 17.22176 15 27 10.46 -01 14 27.0          22.1 VuEK042807
         K18K01A |C2018 05 17.22876 15 27 09.84 -01 14 29.9          22.2 VuEK042807
         K18K01A |C2018 05 17.23572 15 27 09.22 -01 14 33.1          22.1 VuEK042807
         K18K01A  C2018 05 17.26164 15 27 07.08 -01 14 50.0          21.2 GUEK042I52
         K18K01A  C2018 05 17.26495 15 27 06.78 -01 14 51.0          21.7 GUEK042I52
         K18K01A  C2018 05 17.26826 15 27 06.48 -01 14 53.2          21.8 GUEK042I52
         K18K01A  C2018 05 17.27158 15 27 06.18 -01 14 54.6          21.6 GUEK042I52
         K18K01A  C2018 05 18.33536 15 25 32.21 -01 23 02.9          22.0 GUEK042G96
         K18K01A  C2018 05 18.33758 15 25 32.04 -01 23 03.7          21.1 GUEK042G96
         K18K01A  C2018 05 18.33984 15 25 31.77 -01 23 05.5          21.6 GUEK042G96
         K18K01A  C2018 05 18.34207 15 25 31.70 -01 23 04.5          21.5 GUEK042G96
         K18K01A  C2018 05 20.20267315 22 46.84 -01 37 52.8          21.1 GVEK042H01
         K18K01A  C2018 05 20.20693115 22 46.45 -01 37 54.8          21.2 GVEK042H01
         K18K01A  C2018 05 20.21547515 22 45.68 -01 37 59.1          21.2 GVEK042H01
         K18K01A  C2018 05 20.22534615 22 44.78 -01 38 04.0          20.8 GVEK042H01
    
    Observer details:
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    G96 Mt. Lemmon Survey.  Observers H. Groeller, G. J. Leonard, R. A. Kowalski.
        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.  1.5-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 J. A. Johnson.
        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 KA1
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 309.91598              (2000.0)            P               Q
    n   0.15845327     Peri.  264.12422     +0.58290852     +0.51356009
    a   3.3822205      Node    63.18005     -0.09644993     +0.81318592
    e   0.5059834      Incl.   44.87476     -0.80679308     +0.27383332
    P   6.22           H   17.7           G   0.15           U   8
    Residuals in seconds of arc
    180516 G96  1.3+  0.2-    180516 H01  0.1-  0.0     180518 G96  0.2-  0.3-
    180516 G96  0.6+  0.4+    180516 H01  0.2-  0.0     180518 G96  0.3+  0.1-
    180516 G96  0.2-  0.2+    180517 807  0.1-  0.2-    180518 G96  0.7-  0.8-
    180516 I52  0.0   0.4-    180517 807  0.0   0.1+    180518 G96  1.3+  1.2+
    180516 I52  0.2-  0.1+    180517 807  0.0   0.0     180520 H01  0.0   0.0
    180516 I52  0.6-  0.0     180517 I52  0.1-  0.0     180520 H01  0.0   0.1+
    180516 I52  0.2+  0.1+    180517 I52  0.1-  0.5+    180520 H01  0.0   0.0
    180516 H01  0.2-  0.0     180517 I52  0.2-  0.2-    180520 H01  0.1-  0.1-
    180516 H01  0.2-  0.1-    180517 I52  0.2-  0.1-
    
    Ephemeris:
    2018 KA1                 a,e,i = 3.38, 0.51, 45                  q = 1.6709
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 04 20    16 00 58.4 +00 59 06   2.0118  2.8944   145.3    11.4    22.2
    ...
    2018 05 05    15 44 13.1 +00 02 25   1.8515  2.8144   158.6     7.5    21.8
    ...
    2018 05 13    15 33 17.5 -00 44 31   1.7924  2.7713   162.1     6.4    21.7
    ...
    2018 05 19    15 24 33.5 -01 28 11   1.7613  2.7389   161.3     6.8    21.6
    2018 05 20    15 23 04.8 -01 36 11   1.7572  2.7335   160.9     7.0    21.6
    2018 05 21    15 21 35.9 -01 44 22   1.7535  2.7281   160.4     7.1    21.6
    ...
    2018 05 27    15 12 42.5 -02 37 39   1.7375  2.6955   156.2     8.7    21.6
    ...
    2018 06 04    15 01 12.9 -03 58 54   1.7333  2.6519   148.5    11.5    21.7
    ...
    2018 06 19    14 42 38.0 -06 56 25   1.7726  2.5699   132.4    17.0    21.9
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-K42
    

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    MPEC number:

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