• MPC Preparation (Info)

  • MPEC 2020-X25 : 2003 WJ98

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    M.P.E.C. 2020-X25                              Issued 2020 December 6, 06:50 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
    
                                    2003 WJ98                                
    
    
                               Revision to MPEC 2003-W68                            
    
    Additional Observations:
         K03W98J  C2014 04 08.55342517 03 36.541+15 45 38.91         22.81GVEX025F51
         K03W98J  C2014 04 08.56502817 03 35.750+15 45 31.23         22.41GVEX025F51
         K03W98J  C2014 05 08.37578015 57 15.720+05 13 23.45         22.37GVEX025F51
         K03W98J  C2014 05 08.40075715 57 10.804+05 12 33.16         21.87GVEX025F51
         K03W98J  C2014 05 10.37532215 50 52.469+04 05 00.68         23.00GVEX025F51
         K03W98J  C2014 05 10.39940315 50 47.670+04 04 10.48         22.42GVEX025F51
         K03W98J  C2014 05 10.41145715 50 45.273+04 03 45.29         22.25GVEX025F51
         K03W98J  C2020 12 06.14871200 06 34.46 +04 46 31.7          20.68GVEX025G96
         K03W98J  C2020 12 06.15382800 06 32.72 +04 47 28.1          20.65GVEX025G96
         K03W98J  C2020 12 06.15894300 06 30.95 +04 48 25.2          21.14GVEX025G96
         K03W98J  C2020 12 06.16407800 06 29.17 +04 49 22.4          20.70GVEX025G96
         K03W98J KC2020 12 06.25179900 05 59.46 +05 05 33.1          21.15GVEX025I52
         K03W98J KC2020 12 06.25347800 05 58.91 +05 05 52.0          20.12GVEX025I52
         K03W98J KC2020 12 06.25515900 05 58.37 +05 06 10.5          20.18GVEX025I52
         K03W98J KC2020 12 06.25683900 05 57.83 +05 06 28.8          19.91GVEX025I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  Measurers 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, T. A. Pruyne, D. Rankin, R. L.
        Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  Measurers
        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, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m reflector +
        CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
    140408 F51    6-   10-    201206 I52  178-   37-    MPO 58065   -14.6 days
    
    Orbital elements:
    2003 WJ98                                                Earth MOID = 0.0455 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 345.73741              (2000.0)            P               Q
    n   0.69511288     Peri.   34.29670     -0.15221439     -0.92156794
    a   1.2621157      Node    66.82538     +0.79719774     -0.32807049
    e   0.2056318      Incl.   22.85986     +0.58421447     +0.20756273
    P   1.42           H   22.9           G   0.15           U   1
    Residuals in seconds of arc
    031126 704  0.3-  0.1+    031128 649  0.2-  0.2-    140408 F51  0.1-  0.4-
    031126 704  0.2-  0.2-    031203 448  0.5-  0.2-    140508 F51  0.3-  0.1+
    031126 704  0.3+  0.1-    031203 448  0.3-  0.4-    140508 F51  0.1+  0.1-
    031126 704  0.4-  0.6-    031203 448  0.3+  0.6-    140510 F51  0.2-  0.2+
    031126 704  0.6+  0.8-    031206 170  0.3+  0.3+    140510 F51  0.2+  0.2+
    031127 651  0.6-  0.8+    031206 170  0.2+  0.1+    140510 F51  0.5+  0.2+
    031127 651  0.1-  0.8+    031206 170  0.1+  0.3+    201206 G96  0.5+  0.4-
    031127 651  0.4-  1.1+    031206 170  0.1+  0.4+    201206 G96  0.7+  0.7-
    031127 926  0.3+  0.6+    031206 170  0.3+  0.4+    201206 G96  0.5+  0.3-
    031127 926  0.1-  0.1+    031207 448  0.2-  0.7+    201206 G96  0.2+  0.0
    031127 926  1.4-  0.0     031207 448  0.5-  0.1-    201206 I52  0.0   0.0
    031128 649  0.0   0.2-    031207 448  0.3-  0.0     201206 I52  0.2+  0.4+
    031128 649  0.2+  0.5-    031218 540  0.3-  0.9+    201206 I52  0.5+  0.3+
    031128 649  0.0   0.6-    140408 F51  0.0   0.1+    201206 I52  0.8+  0.0
    
    Ephemeris:
    2003 WJ98                a,e,i = 1.26, 0.21, 23                  q = 1.0026
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 11 06    02 59 30.9 -49 59 23   0.2259  1.1025   114.0    55.2    21.9
    ...
    2020 11 21    01 35 41.3 -35 28 04   0.1492  1.0630   116.5    56.2    20.9
    ...
    2020 11 29    00 46 53.6 -17 00 46   0.1241  1.0450   115.1    58.8    20.6
    ...
    2020 12 05    00 12 45.7 +01 13 07   0.1198  1.0333   110.4    63.4    20.6
    2020 12 06    00 07 23.3 +04 19 25   0.1205  1.0315   109.3    64.3    20.7
    2020 12 07    00 02 06.8 +07 23 14   0.1216  1.0298   108.3    65.3    20.7
    ...
    2020 12 13    23 32 38.0 +23 57 46   0.1356  1.0204   101.6    70.9    21.1
    ...
    2020 12 21    22 58 52.2 +39 44 33   0.1680  1.0108    94.4    76.0    21.7
    ...
    2021 01 05    22 07 35.6 +55 38 40   0.2436  1.0027    87.5    78.4    22.6
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-X25
    


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