• MPC Preparation (Info)

  • MPEC 2018-W68 : 2018 WJ1

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    M.P.E.C. 2018-W68                                Issued 2018 Nov. 28, 12:30 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2018 WJ1
    
    Observations:
         K18W01J  C2018 10 03.61607603 22 49.923+28 12 41.28         22.1 GVEW068F52
         K18W01J  C2018 10 03.62159003 22 49.867+28 12 45.38         22.2 GVEW068F52
         K18W01J  C2018 10 03.63261103 22 49.738+28 12 53.20         22.6 GVEW068F52
         K18W01J  C2018 10 15.61834303 17 37.031+30 41 02.24         21.5 GVEW068F52
         K18W01J  C2018 10 15.62323903 17 36.781+30 41 05.67         21.7 GVEW068F52
         K18W01J  C2018 10 15.62812303 17 36.556+30 41 09.16         21.8 GVEW068F52
         K18W01J  C2018 10 15.63298703 17 36.311+30 41 12.55         21.3 GVEW068F52
         K18W01J  C2018 11 05.35257 02 50 10.136+34 21 06.72         20.9 wUEW068F52
         K18W01J  C2018 11 05.36391 02 50 08.830+34 21 12.45         20.9 wUEW068F52
         K18W01J  C2018 11 05.38658 02 50 06.202+34 21 23.43         21.0 wUEW068F52
         K18W01J* C2018 11 28.24032 02 05 56.08 +35 37 02.6          20.9 GVEW068G96
         K18W01J  C2018 11 28.24552 02 05 55.52 +35 37 03.0          20.7 GVEW068G96
         K18W01J  C2018 11 28.25073 02 05 54.94 +35 37 02.3          21.7 GVEW068G96
         K18W01J  C2018 11 28.25593 02 05 54.37 +35 37 02.1          21.0 GVEW068G96
         K18W01J IC2018 11 28.31951602 05 47.55 +35 36 55.8          20.4 GVEW068H01
         K18W01J  C2018 11 28.32604302 05 46.87 +35 36 55.3          20.6 GVEW068H01
         K18W01J  C2018 11 28.34365202 05 45.00 +35 36 53.7          20.6 GVEW068H01
         K18W01J  C2018 11 28.34750702 05 44.59 +35 36 53.5          20.9 GVEW068H01
         K18W01J  C2018 11 28.36533 02 05 42.74 +35 36 52.1          20.8 GVEW068I52
         K18W01J  C2018 11 28.36782 02 05 42.50 +35 36 51.7          20.7 GVEW068I52
         K18W01J  C2018 11 28.37032 02 05 42.16 +35 36 51.3          20.9 GVEW068I52
         K18W01J  C2018 11 28.37282 02 05 41.92 +35 36 51.2          20.4 GVEW068I52
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes,
        T. Lowe, E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel,
        M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, L. Denneau,
        H. Flewelling, E. Magnier, C. Waters.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer B. M. Africano.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, 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 Ritchey-Chretien + 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, 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 WJ1                                                 Earth MOID = 0.2597 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M  12.11708              (2000.0)            P               Q
    n   0.39937203     Peri.  135.76281     -0.77879211     -0.62701749
    a   1.8262110      Node     5.49881     +0.50974864     -0.64952924
    e   0.3330978      Incl.   10.95989     +0.36556692     -0.43007073
    P   2.47           H   20.0           G   0.15           U   3
    Residuals in seconds of arc
    181003 F52  0.1-  0.1+    181105 F52  0.0   0.1+    181128 H01  0.2+  0.1+
    181003 F52  0.0   0.2+    181105 F52  0.1-  0.0     181128 H01  0.1+  0.2+
    181003 F52  0.1-  0.0     181128 G96  0.1+  0.3-    181128 I52  0.2+  0.1-
    181015 F52  0.1+  0.0     181128 G96  0.1+  0.5+    181128 I52  0.4+  0.2-
    181015 F52  0.0   0.1-    181128 G96  0.1-  0.2+    181128 I52  0.5-  0.4-
    181015 F52  0.2+  0.1-    181128 G96  0.2-  0.4+    181128 I52  0.3-  0.2-
    181015 F52  0.1+  0.1-    181128 H01  0.1+  0.1-
    181105 F52  0.0   0.0     181128 H01  0.3+  0.0
    
    Ephemeris:
    2018 WJ1                 a,e,i = 1.83, 0.33, 11                  q = 1.2179
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 10 29    03 02 28.7 +33 13 47   0.7456  1.7047   157.0    13.2    21.3
    ...
    2018 11 13    02 35 20.3 +35 10 20   0.6700  1.6375   160.9    11.4    20.9
    ...
    2018 11 21    02 19 17.6 +35 35 40   0.6492  1.6015   155.5    14.8    20.9
    ...
    2018 11 27    02 08 05.1 +35 38 04   0.6419  1.5746   149.7    18.4    21.0
    2018 11 28    02 06 20.9 +35 37 16   0.6413  1.5701   148.6    19.1    21.0
    2018 11 29    02 04 39.6 +35 36 11   0.6409  1.5657   147.6    19.7    21.0
    ...
    2018 12 05    01 55 40.4 +35 24 22   0.6417  1.5389   141.2    23.7    21.1
    ...
    2018 12 13    01 47 21.5 +35 00 33   0.6503  1.5037   132.7    28.7    21.2
    ...
    2018 12 28    01 44 27.9 +34 21 41   0.6815  1.4397   118.6    36.9    21.5
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-W68
    

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